mirror/guile
mirror/guile
1
Fork 0
mirror of https://git.savannah.gnu.org/git/guile.git synced 2025-04-29 19:30:36 +02:00
Code Activity

Update Gnulib to v0.1-4379-g2ef5a9b4b

Browse source 
Also bump required autoconf version to 2.64, as required by Gnulib.
This commit is contained in:
Andy Wingo 2021-01-20 21:52:54 +01:00
parent 758b31994c
commit a91b95cca2
483 changed files with 26665 additions and 10031 deletions
Download patch file Download diff file Expand all files Collapse all files

848
lib/Makefile.am
View file

File diff suppressed because it is too large Load diff

45
lib/_Noreturn.h Normal file
View file

@ -0,0 +1,45 @@
/* A C macro for declaring that a function does not return.
Copyright (C) 2011-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#ifndef _Noreturn
# if (defined __cplusplus \
&& ((201103 <= __cplusplus && !(__GNUC__ == 4 && __GNUC_MINOR__ == 7)) \
|| (defined _MSC_VER && 1900 <= _MSC_VER)) \
&& 0)
/* [[noreturn]] is not practically usable, because with it the syntax
extern _Noreturn void func (...);
would not be valid; such a declaration would only be valid with 'extern'
and '_Noreturn' swapped, or without the 'extern' keyword. However, some
AIX system header files and several gnulib header files use precisely
this syntax with 'extern'. */
# define _Noreturn [[noreturn]]
# elif ((!defined __cplusplus || defined __clang__) \
&& (201112 <= (defined __STDC_VERSION__ ? __STDC_VERSION__ : 0) \
|| (!defined __STRICT_ANSI__ \
&& (__4 < __GNUC__ + (7 <= __GNUC_MINOR__) \
|| (defined __apple_build_version__ \
? 6000000 <= __apple_build_version__ \
: 3 < __clang_major__ + (5 <= __clang_minor__))))))
/* _Noreturn works as-is. */
# elif (2 < __GNUC__ + (8 <= __GNUC_MINOR__) || defined __clang__ \
|| 0x5110 <= __SUNPRO_C)
# define _Noreturn __attribute__ ((__noreturn__))
# elif 1200 <= (defined _MSC_VER ? _MSC_VER : 0)
# define _Noreturn __declspec (noreturn)
# else
# define _Noreturn
# endif
#endif

4
lib/accept.c
View file

@ -1,6 +1,6 @@
/* accept.c --- wrappers for Windows accept function
Copyright (C) 2008-2017 Free Software Foundation, Inc.
Copyright (C) 2008-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -13,7 +13,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Paolo Bonzini */

35
lib/accept4.c
View file

@ -1,5 +1,5 @@
/* Accept a connection on a socket, with specific opening flags.
Copyright (C) 2009-2017 Free Software Foundation, Inc.
Copyright (C) 2009-2021 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -12,7 +12,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, see <http://www.gnu.org/licenses/>. */
with this program; if not, see <https://www.gnu.org/licenses/>. */
#include <config.h>
@ -22,18 +22,25 @@
#include <errno.h>
#include <fcntl.h>
#include "binary-io.h"
#include "msvc-nothrow.h"
#if GNULIB_MSVC_NOTHROW
# include "msvc-nothrow.h"
#else
# include <io.h>
#endif
#ifndef SOCK_CLOEXEC
# define SOCK_CLOEXEC 0
#endif
#ifndef SOCK_NONBLOCK
# define SOCK_NONBLOCK 0
#endif
int
accept4 (int sockfd, struct sockaddr *addr, socklen_t *addrlen, int flags)
{
int fd;
#if HAVE_ACCEPT4
#if HAVE_DECL_ACCEPT4
# undef accept4
/* Try the system call first, if it exists. (We may be running with a glibc
that has the function but with an older kernel that lacks it.) */
@ -54,7 +61,7 @@ accept4 (int sockfd, struct sockaddr *addr, socklen_t *addrlen, int flags)
#endif
/* Check the supported flags. */
if ((flags & ~(SOCK_CLOEXEC | O_TEXT | O_BINARY)) != 0)
if ((flags & ~(SOCK_CLOEXEC | SOCK_NONBLOCK | O_TEXT | O_BINARY)) != 0)
{
errno = EINVAL;
return -1;
@ -65,7 +72,7 @@ accept4 (int sockfd, struct sockaddr *addr, socklen_t *addrlen, int flags)
return -1;
#if SOCK_CLOEXEC
# if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
# if defined _WIN32 && ! defined __CYGWIN__
/* Native Windows API. */
if (flags & SOCK_CLOEXEC)
{
@ -117,6 +124,22 @@ accept4 (int sockfd, struct sockaddr *addr, socklen_t *addrlen, int flags)
# endif
#endif
#if SOCK_NONBLOCK
if (flags & SOCK_NONBLOCK)
{
int fcntl_flags;
if ((fcntl_flags = fcntl (fd, F_GETFL, 0)) < 0
|| fcntl (fd, F_SETFL, fcntl_flags | O_NONBLOCK) == -1)
{
int saved_errno = errno;
close (fd);
errno = saved_errno;
return -1;
}
}
#endif
#if O_BINARY
if (flags & O_BINARY)
set_binary_mode (fd, O_BINARY);

10
lib/alignof.h
View file

@ -1,5 +1,5 @@
/* Determine alignment of types.
Copyright (C) 2003-2004, 2006, 2009-2017 Free Software Foundation, Inc.
Copyright (C) 2003-2004, 2006, 2009-2021 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -12,7 +12,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>. */
along with this program; if not, see <https://www.gnu.org/licenses/>. */
#ifndef _ALIGNOF_H
#define _ALIGNOF_H
@ -36,12 +36,14 @@
/* alignof_type (TYPE)
Determine the good alignment of an object of the given type at compile time.
Note that this is not necessarily the same as alignof_slot(type).
For example, with GNU C on x86 platforms: alignof_type(double) = 8, but
For example, with GNU C on x86 platforms and with clang on Linux/x86:
alignof_type(long long) = 8, but alignof_slot(long long) = 4.
And alignof_type(double) = 8, but
- when -malign-double is not specified: alignof_slot(double) = 4,
- when -malign-double is specified: alignof_slot(double) = 8.
Note: The result cannot be used as a value for an 'enum' constant,
due to bugs in HP-UX 10.20 cc and AIX 3.2.5 xlc. */
#if defined __GNUC__ || defined __IBM__ALIGNOF__
#if defined __GNUC__ || defined __clang__ || defined __IBM__ALIGNOF__
# define alignof_type __alignof__
#else
# define alignof_type alignof_slot

286
lib/alloca.c
View file

@ -39,8 +39,8 @@
# define memory_full() abort ()
#endif
/* If compiling with GCC 2, this file's not needed. */
#if !defined (__GNUC__) || __GNUC__ < 2
/* If compiling with GCC or clang, this file is not needed. */
#if !(defined __GNUC__ || defined __clang__)
/* If someone has defined alloca as a macro,
there must be some other way alloca is supposed to work. */
@ -62,16 +62,6 @@ lose
# endif /* static */
# endif /* emacs */
/* If your stack is a linked list of frames, you have to
provide an "address metric" ADDRESS_FUNCTION macro. */
# if defined (CRAY) && defined (CRAY_STACKSEG_END)
long i00afunc ();
# define ADDRESS_FUNCTION(arg) (char *) i00afunc (&(arg))
# else
# define ADDRESS_FUNCTION(arg) &(arg)
# endif
/* Define STACK_DIRECTION if you know the direction of stack
growth for your system; otherwise it will be automatically
deduced at run-time.
@ -140,7 +130,7 @@ void *
alloca (size_t size)
{
auto char probe; /* Probes stack depth: */
register char *depth = ADDRESS_FUNCTION (probe);
register char *depth = &probe;
# if STACK_DIRECTION == 0
if (STACK_DIR == 0) /* Unknown growth direction. */
@ -206,273 +196,5 @@ alloca (size_t size)
}
}
# if defined (CRAY) && defined (CRAY_STACKSEG_END)
# ifdef DEBUG_I00AFUNC
# include <stdio.h>
# endif
# ifndef CRAY_STACK
# define CRAY_STACK
# ifndef CRAY2
/* Stack structures for CRAY-1, CRAY X-MP, and CRAY Y-MP */
struct stack_control_header
{
long shgrow:32; /* Number of times stack has grown. */
long shaseg:32; /* Size of increments to stack. */
long shhwm:32; /* High water mark of stack. */
long shsize:32; /* Current size of stack (all segments). */
};
/* The stack segment linkage control information occurs at
the high-address end of a stack segment. (The stack
grows from low addresses to high addresses.) The initial
part of the stack segment linkage control information is
0200 (octal) words. This provides for register storage
for the routine which overflows the stack. */
struct stack_segment_linkage
{
long ss[0200]; /* 0200 overflow words. */
long sssize:32; /* Number of words in this segment. */
long ssbase:32; /* Offset to stack base. */
long:32;
long sspseg:32; /* Offset to linkage control of previous
segment of stack. */
long:32;
long sstcpt:32; /* Pointer to task common address block. */
long sscsnm; /* Private control structure number for
microtasking. */
long ssusr1; /* Reserved for user. */
long ssusr2; /* Reserved for user. */
long sstpid; /* Process ID for pid based multi-tasking. */
long ssgvup; /* Pointer to multitasking thread giveup. */
long sscray[7]; /* Reserved for Cray Research. */
long ssa0;
long ssa1;
long ssa2;
long ssa3;
long ssa4;
long ssa5;
long ssa6;
long ssa7;
long sss0;
long sss1;
long sss2;
long sss3;
long sss4;
long sss5;
long sss6;
long sss7;
};
# else /* CRAY2 */
/* The following structure defines the vector of words
returned by the STKSTAT library routine. */
struct stk_stat
{
long now; /* Current total stack size. */
long maxc; /* Amount of contiguous space which would
be required to satisfy the maximum
stack demand to date. */
long high_water; /* Stack high-water mark. */
long overflows; /* Number of stack overflow ($STKOFEN) calls. */
long hits; /* Number of internal buffer hits. */
long extends; /* Number of block extensions. */
long stko_mallocs; /* Block allocations by $STKOFEN. */
long underflows; /* Number of stack underflow calls ($STKRETN). */
long stko_free; /* Number of deallocations by $STKRETN. */
long stkm_free; /* Number of deallocations by $STKMRET. */
long segments; /* Current number of stack segments. */
long maxs; /* Maximum number of stack segments so far. */
long pad_size; /* Stack pad size. */
long current_address; /* Current stack segment address. */
long current_size; /* Current stack segment size. This
number is actually corrupted by STKSTAT to
include the fifteen word trailer area. */
long initial_address; /* Address of initial segment. */
long initial_size; /* Size of initial segment. */
};
/* The following structure describes the data structure which trails
any stack segment. I think that the description in 'asdef' is
out of date. I only describe the parts that I am sure about. */
struct stk_trailer
{
long this_address; /* Address of this block. */
long this_size; /* Size of this block (does not include
this trailer). */
long unknown2;
long unknown3;
long link; /* Address of trailer block of previous
segment. */
long unknown5;
long unknown6;
long unknown7;
long unknown8;
long unknown9;
long unknown10;
long unknown11;
long unknown12;
long unknown13;
long unknown14;
};
# endif /* CRAY2 */
# endif /* not CRAY_STACK */
# ifdef CRAY2
/* Determine a "stack measure" for an arbitrary ADDRESS.
I doubt that "lint" will like this much. */
static long
i00afunc (long *address)
{
struct stk_stat status;
struct stk_trailer *trailer;
long *block, size;
long result = 0;
/* We want to iterate through all of the segments. The first
step is to get the stack status structure. We could do this
more quickly and more directly, perhaps, by referencing the
$LM00 common block, but I know that this works. */
STKSTAT (&status);
/* Set up the iteration. */
trailer = (struct stk_trailer *) (status.current_address
+ status.current_size
- 15);
/* There must be at least one stack segment. Therefore it is
a fatal error if "trailer" is null. */
if (trailer == 0)
abort ();
/* Discard segments that do not contain our argument address. */
while (trailer != 0)
{
block = (long *) trailer->this_address;
size = trailer->this_size;
if (block == 0 || size == 0)
abort ();
trailer = (struct stk_trailer *) trailer->link;
if ((block <= address) && (address < (block + size)))
break;
}
/* Set the result to the offset in this segment and add the sizes
of all predecessor segments. */
result = address - block;
if (trailer == 0)
{
return result;
}
do
{
if (trailer->this_size <= 0)
abort ();
result += trailer->this_size;
trailer = (struct stk_trailer *) trailer->link;
}
while (trailer != 0);
/* We are done. Note that if you present a bogus address (one
not in any segment), you will get a different number back, formed
from subtracting the address of the first block. This is probably
not what you want. */
return (result);
}
# else /* not CRAY2 */
/* Stack address function for a CRAY-1, CRAY X-MP, or CRAY Y-MP.
Determine the number of the cell within the stack,
given the address of the cell. The purpose of this
routine is to linearize, in some sense, stack addresses
for alloca. */
static long
i00afunc (long address)
{
long stkl = 0;
long size, pseg, this_segment, stack;
long result = 0;
struct stack_segment_linkage *ssptr;
/* Register B67 contains the address of the end of the
current stack segment. If you (as a subprogram) store
your registers on the stack and find that you are past
the contents of B67, you have overflowed the segment.
B67 also points to the stack segment linkage control
area, which is what we are really interested in. */
stkl = CRAY_STACKSEG_END ();
ssptr = (struct stack_segment_linkage *) stkl;
/* If one subtracts 'size' from the end of the segment,
one has the address of the first word of the segment.
If this is not the first segment, 'pseg' will be
nonzero. */
pseg = ssptr->sspseg;
size = ssptr->sssize;
this_segment = stkl - size;
/* It is possible that calling this routine itself caused
a stack overflow. Discard stack segments which do not
contain the target address. */
while (!(this_segment <= address && address <= stkl))
{
# ifdef DEBUG_I00AFUNC
fprintf (stderr, "%011o %011o %011o\n", this_segment, address, stkl);
# endif
if (pseg == 0)
break;
stkl = stkl - pseg;
ssptr = (struct stack_segment_linkage *) stkl;
size = ssptr->sssize;
pseg = ssptr->sspseg;
this_segment = stkl - size;
}
result = address - this_segment;
/* If you subtract pseg from the current end of the stack,
you get the address of the previous stack segment's end.
This seems a little convoluted to me, but I'll bet you save
a cycle somewhere. */
while (pseg != 0)
{
# ifdef DEBUG_I00AFUNC
fprintf (stderr, "%011o %011o\n", pseg, size);
# endif
stkl = stkl - pseg;
ssptr = (struct stack_segment_linkage *) stkl;
size = ssptr->sssize;
pseg = ssptr->sspseg;
result += size;
}
return (result);
}
# endif /* not CRAY2 */
# endif /* CRAY */
# endif /* no alloca */
#endif /* not GCC 2 */
#endif /* not GCC || clang */

15
lib/alloca.in.h
View file

@ -1,6 +1,6 @@
/* Memory allocation on the stack.
Copyright (C) 1995, 1999, 2001-2004, 2006-2017 Free Software Foundation,
Copyright (C) 1995, 1999, 2001-2004, 2006-2021 Free Software Foundation,
Inc.
This program is free software; you can redistribute it and/or modify it
@ -15,7 +15,7 @@
You should have received a copy of the GNU Lesser General Public
License along with this program; if not, see
<http://www.gnu.org/licenses/>.
<https://www.gnu.org/licenses/>.
*/
/* Avoid using the symbol _ALLOCA_H here, as Bison assumes _ALLOCA_H
@ -35,7 +35,16 @@
*/
#ifndef alloca
# ifdef __GNUC__
/* Some version of mingw have an <alloca.h> that causes trouble when
included after 'alloca' gets defined as a macro. As a workaround,
include this <alloca.h> first and define 'alloca' as a macro afterwards
if needed. */
# if defined __GNUC__ && (defined _WIN32 && ! defined __CYGWIN__) && @HAVE_ALLOCA_H@
# include_next <alloca.h>
# endif
#endif
#ifndef alloca
# if defined __GNUC__ || (__clang_major__ >= 4)
# define alloca __builtin_alloca
# elif defined _AIX
# define alloca __alloca

26
lib/arg-nonnull.h Normal file
View file

@ -0,0 +1,26 @@
/* A C macro for declaring that specific arguments must not be NULL.
Copyright (C) 2009-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* _GL_ARG_NONNULL((n,...,m)) tells the compiler and static analyzer tools
that the values passed as arguments n, ..., m must be non-NULL pointers.
n = 1 stands for the first argument, n = 2 for the second argument etc. */
#ifndef _GL_ARG_NONNULL
# if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 3) || defined __clang__
# define _GL_ARG_NONNULL(params) __attribute__ ((__nonnull__ params))
# else
# define _GL_ARG_NONNULL(params)
# endif
#endif

18
lib/arpa_inet.in.h
View file

@ -1,6 +1,6 @@
/* A GNU-like <arpa/inet.h>.
Copyright (C) 2005-2006, 2008-2017 Free Software Foundation, Inc.
Copyright (C) 2005-2006, 2008-2021 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -13,7 +13,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>. */
along with this program; if not, see <https://www.gnu.org/licenses/>. */
#ifndef _@GUARD_PREFIX@_ARPA_INET_H
@ -49,6 +49,12 @@
#ifndef _@GUARD_PREFIX@_ARPA_INET_H
#define _@GUARD_PREFIX@_ARPA_INET_H
/* Get all possible declarations of inet_ntop() and inet_pton(). */
#if (@GNULIB_INET_NTOP@ || @GNULIB_INET_PTON@ || defined GNULIB_POSIXCHECK) \
&& @HAVE_WS2TCPIP_H@
# include <ws2tcpip.h>
#endif
/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
/* The definition of _GL_ARG_NONNULL is copied here. */
@ -70,8 +76,8 @@
the return value is NULL and errno is set to ENOSPC. A good value
for CNT is 46.
For more details, see the POSIX:2001 specification
<http://www.opengroup.org/susv3xsh/inet_ntop.html>. */
For more details, see the POSIX:2008 specification
<https://pubs.opengroup.org/onlinepubs/9699919799/functions/inet_ntop.html>. */
# if @REPLACE_INET_NTOP@
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
# undef inet_ntop
@ -97,7 +103,9 @@ _GL_CXXALIAS_SYS_CAST (inet_ntop, const char *,
(int af, const void *restrict src,
char *restrict dst, socklen_t cnt));
# endif
# if __GLIBC__ >= 2
_GL_CXXALIASWARN (inet_ntop);
# endif
#elif defined GNULIB_POSIXCHECK
# undef inet_ntop
# if HAVE_RAW_DECL_INET_NTOP
@ -126,7 +134,9 @@ _GL_FUNCDECL_SYS (inet_pton, int,
_GL_CXXALIAS_SYS (inet_pton, int,
(int af, const char *restrict src, void *restrict dst));
# endif
# if __GLIBC__ >= 2
_GL_CXXALIASWARN (inet_pton);
# endif
#elif defined GNULIB_POSIXCHECK
# undef inet_pton
# if HAVE_RAW_DECL_INET_PTON

4
lib/asnprintf.c
View file

@ -1,5 +1,5 @@
/* Formatted output to strings.
Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
Copyright (C) 1999, 2002, 2006, 2009-2021 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -12,7 +12,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, see <http://www.gnu.org/licenses/>. */
with this program; if not, see <https://www.gnu.org/licenses/>. */
#include <config.h>

30
lib/assure.h
View file

@ -1,6 +1,6 @@
/* Run-time assert-like macros.
Copyright (C) 2014-2017 Free Software Foundation, Inc.
Copyright (C) 2014-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -13,7 +13,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Paul Eggert. */
@ -21,12 +21,32 @@
#define _GL_ASSURE_H
#include <assert.h>
#include "verify.h"
/* Evaluate an assertion E that is guaranteed to be true.
If NDEBUG is not defined, abort the program if E is false.
If NDEBUG is defined, the compiler can assume E and behavior is
undefined if E is false, fails to evaluate, or has side effects.
Unlike standard 'assert', this macro evaluates E even when NDEBUG
is defined, so as to catch typos, avoid some GCC warnings, and
improve performance when E is simple enough.
Also see the documentation for 'assume' in verify.h. */
#ifdef NDEBUG
# define affirm(E) assume (E)
#else
# define affirm(E) assert (E)
#endif
/* Check E's value at runtime, and report an error and abort if not.
However, do nothng if NDEBUG is defined.
However, do nothing if NDEBUG is defined.
Unlike standard 'assert', this macro always compiles E even when NDEBUG
is defined, so as to catch typos and avoid some GCC warnings. */
Unlike standard 'assert', this macro compiles E even when NDEBUG
is defined, so as to catch typos and avoid some GCC warnings.
Unlike 'affirm', it is OK for E to use hard-to-optimize features,
since E is not executed if NDEBUG is defined. */
#ifdef NDEBUG
# define assure(E) ((void) (0 && (E)))

218
lib/attribute.h Normal file
View file

@ -0,0 +1,218 @@
/* ATTRIBUTE_* macros for using attributes in GCC and similar compilers
Copyright 2020-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Paul Eggert. */
/* Provide public ATTRIBUTE_* names for the private _GL_ATTRIBUTE_*
macros used within Gnulib. */
/* These attributes can be placed in two ways:
- At the start of a declaration (i.e. even before storage-class
specifiers!); then they apply to all entities that are declared
by the declaration.
- Immediately after the name of an entity being declared by the
declaration; then they apply to that entity only. */
#ifndef _GL_ATTRIBUTE_H
#define _GL_ATTRIBUTE_H
/* This file defines two types of attributes:
* C2X standard attributes. These have macro names that do not begin with
'ATTRIBUTE_'.
* Selected GCC attributes; see:
https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html
https://gcc.gnu.org/onlinedocs/gcc/Common-Variable-Attributes.html
https://gcc.gnu.org/onlinedocs/gcc/Common-Type-Attributes.html
These names begin with 'ATTRIBUTE_' to avoid name clashes. */
/* =============== Attributes for specific kinds of functions =============== */
/* Attributes for functions that should not be used. */
/* Warn if the entity is used. */
/* Applies to:
- function, variable,
- struct, union, struct/union member,
- enumeration, enumeration item,
- typedef,
in C++ also: namespace, class, template specialization. */
#define DEPRECATED _GL_ATTRIBUTE_DEPRECATED
/* If a function call is not optimized way, warn with MSG. */
/* Applies to: functions. */
#define ATTRIBUTE_WARNING(msg) _GL_ATTRIBUTE_WARNING (msg)
/* If a function call is not optimized way, report an error with MSG. */
/* Applies to: functions. */
#define ATTRIBUTE_ERROR(msg) _GL_ATTRIBUTE_ERROR (msg)
/* Attributes for memory-allocating functions. */
/* The function returns a pointer to freshly allocated memory. */
/* Applies to: functions. */
#define ATTRIBUTE_MALLOC _GL_ATTRIBUTE_MALLOC
/* ATTRIBUTE_ALLOC_SIZE ((N)) - The Nth argument of the function
is the size of the returned memory block.
ATTRIBUTE_ALLOC_SIZE ((M, N)) - Multiply the Mth and Nth arguments
to determine the size of the returned memory block. */
/* Applies to: function, pointer to function, function types. */
#define ATTRIBUTE_ALLOC_SIZE(args) _GL_ATTRIBUTE_ALLOC_SIZE (args)
/* Attributes for variadic functions. */
/* The variadic function expects a trailing NULL argument.
ATTRIBUTE_SENTINEL () - The last argument is NULL (requires C99).
ATTRIBUTE_SENTINEL ((N)) - The (N+1)st argument from the end is NULL. */
/* Applies to: functions. */
#define ATTRIBUTE_SENTINEL(pos) _GL_ATTRIBUTE_SENTINEL (pos)
/* ================== Attributes for compiler diagnostics ================== */
/* Attributes that help the compiler diagnose programmer mistakes.
Some of them may also help for some compiler optimizations. */
/* ATTRIBUTE_FORMAT ((ARCHETYPE, STRING-INDEX, FIRST-TO-CHECK)) -
The STRING-INDEXth function argument is a format string of style
ARCHETYPE, which is one of:
printf, gnu_printf
scanf, gnu_scanf,
strftime, gnu_strftime,
strfmon,
or the same thing prefixed and suffixed with '__'.
If FIRST-TO-CHECK is not 0, arguments starting at FIRST-TO_CHECK
are suitable for the format string. */
/* Applies to: functions. */
#define ATTRIBUTE_FORMAT(spec) _GL_ATTRIBUTE_FORMAT (spec)
/* ATTRIBUTE_NONNULL ((N1, N2,...)) - Arguments N1, N2,... must not be NULL.
ATTRIBUTE_NONNULL () - All pointer arguments must not be null. */
/* Applies to: functions. */
#define ATTRIBUTE_NONNULL(args) _GL_ATTRIBUTE_NONNULL (args)
/* The function's return value is a non-NULL pointer. */
/* Applies to: functions. */
#define ATTRIBUTE_RETURNS_NONNULL _GL_ATTRIBUTE_RETURNS_NONNULL
/* Warn if the caller does not use the return value,
unless the caller uses something like ignore_value. */
/* Applies to: function, enumeration, class. */
#define NODISCARD _GL_ATTRIBUTE_NODISCARD
/* Attributes that disable false alarms when the compiler diagnoses
programmer "mistakes". */
/* Do not warn if the entity is not used. */
/* Applies to:
- function, variable,
- struct, union, struct/union member,
- enumeration, enumeration item,
- typedef,
in C++ also: class. */
#define MAYBE_UNUSED _GL_ATTRIBUTE_MAYBE_UNUSED
/* The contents of a character array is not meant to be NUL-terminated. */
/* Applies to: struct/union members and variables that are arrays of element
type '[[un]signed] char'. */
#define ATTRIBUTE_NONSTRING _GL_ATTRIBUTE_NONSTRING
/* Do not warn if control flow falls through to the immediately
following 'case' or 'default' label. */
/* Applies to: Empty statement (;), inside a 'switch' statement. */
#define FALLTHROUGH _GL_ATTRIBUTE_FALLTHROUGH
/* ================== Attributes for debugging information ================== */
/* Attributes regarding debugging information emitted by the compiler. */
/* Omit the function from stack traces when debugging. */
/* Applies to: function. */
#define ATTRIBUTE_ARTIFICIAL _GL_ATTRIBUTE_ARTIFICIAL
/* Make the entity visible to debuggers etc., even with '-fwhole-program'. */
/* Applies to: functions, variables. */
#define ATTRIBUTE_EXTERNALLY_VISIBLE _GL_ATTRIBUTE_EXTERNALLY_VISIBLE
/* ========== Attributes that mainly direct compiler optimizations ========== */
/* The function does not throw exceptions. */
/* Applies to: functions. */
#define ATTRIBUTE_NOTHROW _GL_ATTRIBUTE_NOTHROW
/* Do not inline the function. */
/* Applies to: functions. */
#define ATTRIBUTE_NOINLINE _GL_ATTRIBUTE_NOINLINE
/* Always inline the function, and report an error if the compiler
cannot inline. */
/* Applies to: function. */
#define ATTRIBUTE_ALWAYS_INLINE _GL_ATTRIBUTE_ALWAYS_INLINE
/* It is OK for a compiler to omit duplicate calls with the same arguments.
This attribute is safe for a function that neither depends on
nor affects observable state, and always returns exactly once -
e.g., does not loop forever, and does not call longjmp.
(This attribute is stricter than ATTRIBUTE_PURE.) */
/* Applies to: functions. */
#define ATTRIBUTE_CONST _GL_ATTRIBUTE_CONST
/* It is OK for a compiler to omit duplicate calls with the same
arguments if observable state is not changed between calls.
This attribute is safe for a function that does not affect
observable state, and always returns exactly once.
(This attribute is looser than ATTRIBUTE_CONST.) */
/* Applies to: functions. */
#define ATTRIBUTE_PURE _GL_ATTRIBUTE_PURE
/* The function is rarely executed. */
/* Applies to: functions. */
#define ATTRIBUTE_COLD _GL_ATTRIBUTE_COLD
/* If called from some other compilation unit, the function executes
code from that unit only by return or by exception handling,
letting the compiler optimize that unit more aggressively. */
/* Applies to: functions. */
#define ATTRIBUTE_LEAF _GL_ATTRIBUTE_LEAF
/* For struct members: The member has the smallest possible alignment.
For struct, union, class: All members have the smallest possible alignment,
minimizing the memory required. */
/* Applies to: struct members, struct, union,
in C++ also: class. */
#define ATTRIBUTE_PACKED _GL_ATTRIBUTE_PACKED
/* ================ Attributes that make invalid code valid ================ */
/* Attributes that prevent fatal compiler optimizations for code that is not
fully ISO C compliant. */
/* Pointers to the type may point to the same storage as pointers to
other types, thus disabling strict aliasing optimization. */
/* Applies to: types. */
#define ATTRIBUTE_MAY_ALIAS _GL_ATTRIBUTE_MAY_ALIAS
#endif /* _GL_ATTRIBUTE_H */

24
lib/basename-lgpl.c
View file

@ -1,6 +1,6 @@
/* basename.c -- return the last element in a file name
Copyright (C) 1990, 1998-2001, 2003-2006, 2009-2017 Free Software
Copyright (C) 1990, 1998-2001, 2003-2006, 2009-2021 Free Software
Foundation, Inc.
This program is free software: you can redistribute it and/or modify
@ -14,24 +14,24 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#include <config.h>
#include "dirname.h"
/* Specification. */
#include "basename-lgpl.h"
#include <stdbool.h>
#include <string.h>
/* Return the address of the last file name component of NAME. If
NAME has no relative file name components because it is a file
system root, return the empty string. */
#include "filename.h"
char *
last_component (char const *name)
{
char const *base = name + FILE_SYSTEM_PREFIX_LEN (name);
char const *p;
bool saw_slash = false;
bool last_was_slash = false;
while (ISSLASH (*base))
base++;
@ -39,21 +39,17 @@ last_component (char const *name)
for (p = base; *p; p++)
{
if (ISSLASH (*p))
saw_slash = true;
else if (saw_slash)
last_was_slash = true;
else if (last_was_slash)
{
base = p;
saw_slash = false;
last_was_slash = false;
}
}
return (char *) base;
}
/* Return the length of the basename NAME. Typically NAME is the
value returned by base_name or last_component. Act like strlen
(NAME), except omit all trailing slashes. */
size_t
base_len (char const *name)
{

78
lib/basename-lgpl.h Normal file
View file

@ -0,0 +1,78 @@
/* Extract the last component (base name) of a file name.
Copyright (C) 1998, 2001, 2003-2006, 2009-2021 Free Software Foundation,
Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#ifndef _BASENAME_LGPL_H
#define _BASENAME_LGPL_H
#include <stddef.h>
#ifndef DOUBLE_SLASH_IS_DISTINCT_ROOT
# define DOUBLE_SLASH_IS_DISTINCT_ROOT 0
#endif
#ifdef __cplusplus
extern "C" {
#endif
/* Return the address of the last file name component of FILENAME.
If FILENAME has some trailing slash(es), they are considered to be
part of the last component.
If FILENAME has no relative file name components because it is a file
system root, return the empty string.
Examples:
FILENAME RESULT
"foo.c" "foo.c"
"foo/bar.c" "bar.c"
"/foo/bar.c" "bar.c"
"foo/bar/" "bar/"
"foo/bar//" "bar//"
"/" ""
"//" ""
"" ""
The return value is a tail of the given FILENAME; do NOT free() it! */
/* This function was traditionally called 'basename', but we avoid this
function name because
* Various platforms have different functions in their libc.
In particular, the glibc basename(), defined in <string.h>, does
not consider trailing slashes to be part of the component:
FILENAME RESULT
"foo/bar/" ""
"foo/bar//" ""
* The 'basename' command eliminates trailing slashes and for a root
produces a non-empty result:
FILENAME RESULT
"foo/bar/" "bar"
"foo/bar//" "bar"
"/" "/"
"//" "/"
*/
extern char *last_component (char const *filename) _GL_ATTRIBUTE_PURE;
/* Return the length of the basename FILENAME.
Typically FILENAME is the value returned by base_name or last_component.
Act like strlen (FILENAME), except omit all trailing slashes. */
extern size_t base_len (char const *filename) _GL_ATTRIBUTE_PURE;
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* _BASENAME_LGPL_H */

37
lib/binary-io.c
View file

@ -1,4 +1,39 @@
/* Binary mode I/O.
Copyright 2017-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#include <config.h>
#define BINARY_IO_INLINE _GL_EXTERN_INLINE
#include "binary-io.h"
typedef int dummy;
#if defined __DJGPP__ || defined __EMX__
# include <unistd.h>
int
set_binary_mode (int fd, int mode)
{
if (isatty (fd))
/* If FD refers to a console (not a pipe, not a regular file),
O_TEXT is the only reasonable mode, both on input and on output.
Silently ignore the request. If we were to return -1 here,
all programs that use xset_binary_mode would fail when run
with console input or console output. */
return O_TEXT;
else
return __gl_setmode (fd, mode);
}
#endif

38
lib/binary-io.h
View file

@ -1,5 +1,5 @@
/* Binary mode I/O.
Copyright (C) 2001, 2003, 2005, 2008-2017 Free Software Foundation, Inc.
Copyright (C) 2001, 2003, 2005, 2008-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -12,7 +12,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#ifndef _BINARY_H
#define _BINARY_H
@ -33,15 +33,12 @@ _GL_INLINE_HEADER_BEGIN
# define BINARY_IO_INLINE _GL_INLINE
#endif
/* set_binary_mode (fd, mode)
sets the binary/text I/O mode of file descriptor fd to the given mode
(must be O_BINARY or O_TEXT) and returns the previous mode. */
#if O_BINARY
# if defined __EMX__ || defined __DJGPP__ || defined __CYGWIN__
# include <io.h> /* declares setmode() */
# define set_binary_mode setmode
# define __gl_setmode setmode
# else
# define set_binary_mode _setmode
# define __gl_setmode _setmode
# undef fileno
# define fileno _fileno
# endif
@ -50,26 +47,31 @@ _GL_INLINE_HEADER_BEGIN
/* Use a function rather than a macro, to avoid gcc warnings
"warning: statement with no effect". */
BINARY_IO_INLINE int
set_binary_mode (int fd, int mode)
__gl_setmode (int fd _GL_UNUSED, int mode _GL_UNUSED)
{
(void) fd;
(void) mode;
return O_BINARY;
}
#endif
/* SET_BINARY (fd);
changes the file descriptor fd to perform binary I/O. */
/* Set FD's mode to MODE, which should be either O_TEXT or O_BINARY.
Return the old mode if successful, -1 (setting errno) on failure.
Ordinarily this function would be called 'setmode', since that is
its old name on MS-Windows, but it is called 'set_binary_mode' here
to avoid colliding with a BSD function of another name. */
#if defined __DJGPP__ || defined __EMX__
# include <unistd.h> /* declares isatty() */
/* Avoid putting stdin/stdout in binary mode if it is connected to
the console, because that would make it impossible for the user
to interrupt the program through Ctrl-C or Ctrl-Break. */
# define SET_BINARY(fd) ((void) (!isatty (fd) ? (set_binary_mode (fd, O_BINARY), 0) : 0))
extern int set_binary_mode (int fd, int mode);
#else
# define SET_BINARY(fd) ((void) set_binary_mode (fd, O_BINARY))
BINARY_IO_INLINE int
set_binary_mode (int fd, int mode)
{
return __gl_setmode (fd, mode);
}
#endif
/* This macro is obsolescent. */
#define SET_BINARY(fd) ((void) set_binary_mode (fd, O_BINARY))
_GL_INLINE_HEADER_END
#endif /* _BINARY_H */

4
lib/bind.c
View file

@ -1,6 +1,6 @@
/* bind.c --- wrappers for Windows bind function
Copyright (C) 2008-2017 Free Software Foundation, Inc.
Copyright (C) 2008-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -13,7 +13,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Paolo Bonzini */

4
lib/btowc.c
View file

@ -1,5 +1,5 @@
/* Convert unibyte character to wide character.
Copyright (C) 2008, 2010-2017 Free Software Foundation, Inc.
Copyright (C) 2008, 2010-2021 Free Software Foundation, Inc.
Written by Bruno Haible <bruno@clisp.org>, 2008.
This program is free software: you can redistribute it and/or modify
@ -13,7 +13,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#include <config.h>

4
lib/byteswap.in.h
View file

@ -1,5 +1,5 @@
/* byteswap.h - Byte swapping
Copyright (C) 2005, 2007, 2009-2017 Free Software Foundation, Inc.
Copyright (C) 2005, 2007, 2009-2021 Free Software Foundation, Inc.
Written by Oskar Liljeblad <oskar@osk.mine.nu>, 2005.
This program is free software: you can redistribute it and/or modify
@ -13,7 +13,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#ifndef _GL_BYTESWAP_H
#define _GL_BYTESWAP_H

331
lib/c++defs.h Normal file
View file

@ -0,0 +1,331 @@
/* C++ compatible function declaration macros.
Copyright (C) 2010-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#ifndef _GL_CXXDEFS_H
#define _GL_CXXDEFS_H
/* Begin/end the GNULIB_NAMESPACE namespace. */
#if defined __cplusplus && defined GNULIB_NAMESPACE
# define _GL_BEGIN_NAMESPACE namespace GNULIB_NAMESPACE {
# define _GL_END_NAMESPACE }
#else
# define _GL_BEGIN_NAMESPACE
# define _GL_END_NAMESPACE
#endif
/* The three most frequent use cases of these macros are:
* For providing a substitute for a function that is missing on some
platforms, but is declared and works fine on the platforms on which
it exists:
#if @GNULIB_FOO@
# if !@HAVE_FOO@
_GL_FUNCDECL_SYS (foo, ...);
# endif
_GL_CXXALIAS_SYS (foo, ...);
_GL_CXXALIASWARN (foo);
#elif defined GNULIB_POSIXCHECK
...
#endif
* For providing a replacement for a function that exists on all platforms,
but is broken/insufficient and needs to be replaced on some platforms:
#if @GNULIB_FOO@
# if @REPLACE_FOO@
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
# undef foo
# define foo rpl_foo
# endif
_GL_FUNCDECL_RPL (foo, ...);
_GL_CXXALIAS_RPL (foo, ...);
# else
_GL_CXXALIAS_SYS (foo, ...);
# endif
_GL_CXXALIASWARN (foo);
#elif defined GNULIB_POSIXCHECK
...
#endif
* For providing a replacement for a function that exists on some platforms
but is broken/insufficient and needs to be replaced on some of them and
is additionally either missing or undeclared on some other platforms:
#if @GNULIB_FOO@
# if @REPLACE_FOO@
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
# undef foo
# define foo rpl_foo
# endif
_GL_FUNCDECL_RPL (foo, ...);
_GL_CXXALIAS_RPL (foo, ...);
# else
# if !@HAVE_FOO@ or if !@HAVE_DECL_FOO@
_GL_FUNCDECL_SYS (foo, ...);
# endif
_GL_CXXALIAS_SYS (foo, ...);
# endif
_GL_CXXALIASWARN (foo);
#elif defined GNULIB_POSIXCHECK
...
#endif
*/
/* _GL_EXTERN_C declaration;
performs the declaration with C linkage. */
#if defined __cplusplus
# define _GL_EXTERN_C extern "C"
#else
# define _GL_EXTERN_C extern
#endif
/* _GL_FUNCDECL_RPL (func, rettype, parameters_and_attributes);
declares a replacement function, named rpl_func, with the given prototype,
consisting of return type, parameters, and attributes.
Example:
_GL_FUNCDECL_RPL (open, int, (const char *filename, int flags, ...)
_GL_ARG_NONNULL ((1)));
*/
#define _GL_FUNCDECL_RPL(func,rettype,parameters_and_attributes) \
_GL_FUNCDECL_RPL_1 (rpl_##func, rettype, parameters_and_attributes)
#define _GL_FUNCDECL_RPL_1(rpl_func,rettype,parameters_and_attributes) \
_GL_EXTERN_C rettype rpl_func parameters_and_attributes
/* _GL_FUNCDECL_SYS (func, rettype, parameters_and_attributes);
declares the system function, named func, with the given prototype,
consisting of return type, parameters, and attributes.
Example:
_GL_FUNCDECL_SYS (open, int, (const char *filename, int flags, ...)
_GL_ARG_NONNULL ((1)));
*/
#define _GL_FUNCDECL_SYS(func,rettype,parameters_and_attributes) \
_GL_EXTERN_C rettype func parameters_and_attributes
/* _GL_CXXALIAS_RPL (func, rettype, parameters);
declares a C++ alias called GNULIB_NAMESPACE::func
that redirects to rpl_func, if GNULIB_NAMESPACE is defined.
Example:
_GL_CXXALIAS_RPL (open, int, (const char *filename, int flags, ...));
Wrapping rpl_func in an object with an inline conversion operator
avoids a reference to rpl_func unless GNULIB_NAMESPACE::func is
actually used in the program. */
#define _GL_CXXALIAS_RPL(func,rettype,parameters) \
_GL_CXXALIAS_RPL_1 (func, rpl_##func, rettype, parameters)
#if defined __cplusplus && defined GNULIB_NAMESPACE
# define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \
namespace GNULIB_NAMESPACE \
{ \
static const struct _gl_ ## func ## _wrapper \
{ \
typedef rettype (*type) parameters; \
\
inline operator type () const \
{ \
return ::rpl_func; \
} \
} func = {}; \
} \
_GL_EXTERN_C int _gl_cxxalias_dummy
#else
# define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \
_GL_EXTERN_C int _gl_cxxalias_dummy
#endif
/* _GL_CXXALIAS_MDA (func, rettype, parameters);
is to be used when func is a Microsoft deprecated alias, on native Windows.
It declares a C++ alias called GNULIB_NAMESPACE::func
that redirects to _func, if GNULIB_NAMESPACE is defined.
Example:
_GL_CXXALIAS_MDA (open, int, (const char *filename, int flags, ...));
*/
#define _GL_CXXALIAS_MDA(func,rettype,parameters) \
_GL_CXXALIAS_RPL_1 (func, _##func, rettype, parameters)
/* _GL_CXXALIAS_RPL_CAST_1 (func, rpl_func, rettype, parameters);
is like _GL_CXXALIAS_RPL_1 (func, rpl_func, rettype, parameters);
except that the C function rpl_func may have a slightly different
declaration. A cast is used to silence the "invalid conversion" error
that would otherwise occur. */
#if defined __cplusplus && defined GNULIB_NAMESPACE
# define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \
namespace GNULIB_NAMESPACE \
{ \
static const struct _gl_ ## func ## _wrapper \
{ \
typedef rettype (*type) parameters; \
\
inline operator type () const \
{ \
return reinterpret_cast<type>(::rpl_func); \
} \
} func = {}; \
} \
_GL_EXTERN_C int _gl_cxxalias_dummy
#else
# define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \
_GL_EXTERN_C int _gl_cxxalias_dummy
#endif
/* _GL_CXXALIAS_MDA_CAST (func, rettype, parameters);
is like _GL_CXXALIAS_MDA (func, rettype, parameters);
except that the C function func may have a slightly different declaration.
A cast is used to silence the "invalid conversion" error that would
otherwise occur. */
#define _GL_CXXALIAS_MDA_CAST(func,rettype,parameters) \
_GL_CXXALIAS_RPL_CAST_1 (func, _##func, rettype, parameters)
/* _GL_CXXALIAS_SYS (func, rettype, parameters);
declares a C++ alias called GNULIB_NAMESPACE::func
that redirects to the system provided function func, if GNULIB_NAMESPACE
is defined.
Example:
_GL_CXXALIAS_SYS (open, int, (const char *filename, int flags, ...));
Wrapping func in an object with an inline conversion operator
avoids a reference to func unless GNULIB_NAMESPACE::func is
actually used in the program. */
#if defined __cplusplus && defined GNULIB_NAMESPACE
# define _GL_CXXALIAS_SYS(func,rettype,parameters) \
namespace GNULIB_NAMESPACE \
{ \
static const struct _gl_ ## func ## _wrapper \
{ \
typedef rettype (*type) parameters; \
\
inline operator type () const \
{ \
return ::func; \
} \
} func = {}; \
} \
_GL_EXTERN_C int _gl_cxxalias_dummy
#else
# define _GL_CXXALIAS_SYS(func,rettype,parameters) \
_GL_EXTERN_C int _gl_cxxalias_dummy
#endif
/* _GL_CXXALIAS_SYS_CAST (func, rettype, parameters);
is like _GL_CXXALIAS_SYS (func, rettype, parameters);
except that the C function func may have a slightly different declaration.
A cast is used to silence the "invalid conversion" error that would
otherwise occur. */
#if defined __cplusplus && defined GNULIB_NAMESPACE
# define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \
namespace GNULIB_NAMESPACE \
{ \
static const struct _gl_ ## func ## _wrapper \
{ \
typedef rettype (*type) parameters; \
\
inline operator type () const \
{ \
return reinterpret_cast<type>(::func); \
} \
} func = {}; \
} \
_GL_EXTERN_C int _gl_cxxalias_dummy
#else
# define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \
_GL_EXTERN_C int _gl_cxxalias_dummy
#endif
/* _GL_CXXALIAS_SYS_CAST2 (func, rettype, parameters, rettype2, parameters2);
is like _GL_CXXALIAS_SYS (func, rettype, parameters);
except that the C function is picked among a set of overloaded functions,
namely the one with rettype2 and parameters2. Two consecutive casts
are used to silence the "cannot find a match" and "invalid conversion"
errors that would otherwise occur. */
#if defined __cplusplus && defined GNULIB_NAMESPACE
/* The outer cast must be a reinterpret_cast.
The inner cast: When the function is defined as a set of overloaded
functions, it works as a static_cast<>, choosing the designated variant.
When the function is defined as a single variant, it works as a
reinterpret_cast<>. The parenthesized cast syntax works both ways. */
# define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \
namespace GNULIB_NAMESPACE \
{ \
static const struct _gl_ ## func ## _wrapper \
{ \
typedef rettype (*type) parameters; \
\
inline operator type () const \
{ \
return reinterpret_cast<type>((rettype2 (*) parameters2)(::func)); \
} \
} func = {}; \
} \
_GL_EXTERN_C int _gl_cxxalias_dummy
#else
# define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \
_GL_EXTERN_C int _gl_cxxalias_dummy
#endif
/* _GL_CXXALIASWARN (func);
causes a warning to be emitted when ::func is used but not when
GNULIB_NAMESPACE::func is used. func must be defined without overloaded
variants. */
#if defined __cplusplus && defined GNULIB_NAMESPACE
# define _GL_CXXALIASWARN(func) \
_GL_CXXALIASWARN_1 (func, GNULIB_NAMESPACE)
# define _GL_CXXALIASWARN_1(func,namespace) \
_GL_CXXALIASWARN_2 (func, namespace)
/* To work around GCC bug <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>,
we enable the warning only when not optimizing. */
# if !(defined __GNUC__ && !defined __clang__ && __OPTIMIZE__)
# define _GL_CXXALIASWARN_2(func,namespace) \
_GL_WARN_ON_USE (func, \
"The symbol ::" #func " refers to the system function. " \
"Use " #namespace "::" #func " instead.")
# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING
# define _GL_CXXALIASWARN_2(func,namespace) \
extern __typeof__ (func) func
# else
# define _GL_CXXALIASWARN_2(func,namespace) \
_GL_EXTERN_C int _gl_cxxalias_dummy
# endif
#else
# define _GL_CXXALIASWARN(func) \
_GL_EXTERN_C int _gl_cxxalias_dummy
#endif
/* _GL_CXXALIASWARN1 (func, rettype, parameters_and_attributes);
causes a warning to be emitted when the given overloaded variant of ::func
is used but not when GNULIB_NAMESPACE::func is used. */
#if defined __cplusplus && defined GNULIB_NAMESPACE
# define _GL_CXXALIASWARN1(func,rettype,parameters_and_attributes) \
_GL_CXXALIASWARN1_1 (func, rettype, parameters_and_attributes, \
GNULIB_NAMESPACE)
# define _GL_CXXALIASWARN1_1(func,rettype,parameters_and_attributes,namespace) \
_GL_CXXALIASWARN1_2 (func, rettype, parameters_and_attributes, namespace)
/* To work around GCC bug <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>,
we enable the warning only when not optimizing. */
# if !(defined __GNUC__ && !defined __clang__ && __OPTIMIZE__)
# define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \
_GL_WARN_ON_USE_CXX (func, rettype, rettype, parameters_and_attributes, \
"The symbol ::" #func " refers to the system function. " \
"Use " #namespace "::" #func " instead.")
# else
# define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \
_GL_EXTERN_C int _gl_cxxalias_dummy
# endif
#else
# define _GL_CXXALIASWARN1(func,rettype,parameters_and_attributes) \
_GL_EXTERN_C int _gl_cxxalias_dummy
#endif
#endif /* _GL_CXXDEFS_H */

4
lib/c-ctype.h
View file

@ -5,7 +5,7 @@
<ctype.h> functions' behaviour depends on the current locale set via
setlocale.
Copyright (C) 2000-2003, 2006, 2008-2017 Free Software Foundation, Inc.
Copyright (C) 2000-2003, 2006, 2008-2021 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -18,7 +18,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>. */
along with this program; if not, see <https://www.gnu.org/licenses/>. */
#ifndef C_CTYPE_H
#define C_CTYPE_H

4
lib/c-strcase.h
View file

@ -1,5 +1,5 @@
/* Case-insensitive string comparison functions in C locale.
Copyright (C) 1995-1996, 2001, 2003, 2005, 2009-2017 Free Software
Copyright (C) 1995-1996, 2001, 2003, 2005, 2009-2021 Free Software
Foundation, Inc.
This program is free software; you can redistribute it and/or modify
@ -13,7 +13,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>. */
along with this program; if not, see <https://www.gnu.org/licenses/>. */
#ifndef C_STRCASE_H
#define C_STRCASE_H

6
lib/c-strcasecmp.c
View file

@ -1,5 +1,5 @@
/* c-strcasecmp.c -- case insensitive string comparator in C locale
Copyright (C) 1998-1999, 2005-2006, 2009-2017 Free Software Foundation, Inc.
Copyright (C) 1998-1999, 2005-2006, 2009-2021 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -12,7 +12,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>. */
along with this program; if not, see <https://www.gnu.org/licenses/>. */
#include <config.h>
@ -52,5 +52,5 @@ c_strcasecmp (const char *s1, const char *s2)
/* On machines where 'char' and 'int' are types of the same size, the
difference of two 'unsigned char' values - including the sign bit -
doesn't fit in an 'int'. */
return (c1 > c2 ? 1 : c1 < c2 ? -1 : 0);
return _GL_CMP (c1, c2);
}

6
lib/c-strcaseeq.h
View file

@ -1,5 +1,5 @@
/* Optimized case-insensitive string comparison in C locale.
Copyright (C) 2001-2002, 2007, 2009-2017 Free Software Foundation, Inc.
Copyright (C) 2001-2002, 2007, 2009-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published
@ -12,7 +12,7 @@
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Bruno Haible <bruno@clisp.org>. */
@ -27,7 +27,7 @@
/* Help GCC to generate good code for string comparisons with
immediate strings. */
#if defined (__GNUC__) && defined (__OPTIMIZE__)
#if (defined __GNUC__ || defined __clang__) && defined __OPTIMIZE__
/* Case insensitive comparison of ASCII characters. */
# if C_CTYPE_ASCII

6
lib/c-strncasecmp.c
View file

@ -1,5 +1,5 @@
/* c-strncasecmp.c -- case insensitive string comparator in C locale
Copyright (C) 1998-1999, 2005-2006, 2009-2017 Free Software Foundation, Inc.
Copyright (C) 1998-1999, 2005-2006, 2009-2021 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -12,7 +12,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>. */
along with this program; if not, see <https://www.gnu.org/licenses/>. */
#include <config.h>
@ -52,5 +52,5 @@ c_strncasecmp (const char *s1, const char *s2, size_t n)
/* On machines where 'char' and 'int' are types of the same size, the
difference of two 'unsigned char' values - including the sign bit -
doesn't fit in an 'int'. */
return (c1 > c2 ? 1 : c1 < c2 ? -1 : 0);
return _GL_CMP (c1, c2);
}

510
lib/canonicalize-lgpl.c
View file

@ -1,19 +1,20 @@
/* Return the canonical absolute name of a given file.
Copyright (C) 1996-2017 Free Software Foundation, Inc.
Copyright (C) 1996-2021 Free Software Foundation, Inc.
This file is part of the GNU C Library.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#ifndef _LIBC
/* Don't use __attribute__ __nonnull__ in this compilation unit. Otherwise gcc
@ -21,46 +22,48 @@
# define _GL_ARG_NONNULL(params)
# define _GL_USE_STDLIB_ALLOC 1
# include <config.h>
# include <libc-config.h>
#endif
#if !HAVE_CANONICALIZE_FILE_NAME || !FUNC_REALPATH_WORKS || defined _LIBC
/* Specification. */
#include <stdlib.h>
#include <alloca.h>
#include <string.h>
#include <unistd.h>
#include <limits.h>
#if HAVE_SYS_PARAM_H || defined _LIBC
# include <sys/param.h>
#endif
#include <sys/stat.h>
#include <errno.h>
#include <stddef.h>
#include <fcntl.h>
#include <limits.h>
#include <stdbool.h>
#include <string.h>
#include <sys/stat.h>
#include <unistd.h>
#include <eloop-threshold.h>
#include <filename.h>
#include <idx.h>
#include <intprops.h>
#include <scratch_buffer.h>
#ifdef _LIBC
# include <shlib-compat.h>
# define GCC_LINT 1
# define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__))
#else
# define SHLIB_COMPAT(lib, introduced, obsoleted) 0
# define versioned_symbol(lib, local, symbol, version) extern int dummy
# define compat_symbol(lib, local, symbol, version)
# define weak_alias(local, symbol)
# define __canonicalize_file_name canonicalize_file_name
# define __realpath realpath
# include "pathmax.h"
# include "malloca.h"
# include "dosname.h"
# if HAVE_GETCWD
# define __faccessat faccessat
# if defined _WIN32 && !defined __CYGWIN__
# define __getcwd _getcwd
# elif HAVE_GETCWD
# if IN_RELOCWRAPPER
/* When building the relocatable program wrapper, use the system's getcwd
function, not the gnulib override, otherwise we would get a link error.
*/
# undef getcwd
# endif
# ifdef VMS
/* We want the directory in Unix syntax, not in VMS syntax. */
# if defined VMS && !defined getcwd
/* We want the directory in Unix syntax, not in VMS syntax.
The gnulib override of 'getcwd' takes 2 arguments; the original VMS
'getcwd' takes 3 arguments. */
# define __getcwd(buf, max) getcwd (buf, max, 0)
# else
# define __getcwd getcwd
@ -68,57 +71,137 @@
# else
# define __getcwd(buf, max) getwd (buf)
# endif
# define __mempcpy mempcpy
# define __pathconf pathconf
# define __rawmemchr rawmemchr
# define __readlink readlink
# define __set_errno(e) errno = (e)
# ifndef MAXSYMLINKS
# ifdef SYMLOOP_MAX
# define MAXSYMLINKS SYMLOOP_MAX
# else
# define MAXSYMLINKS 20
# endif
# endif
# define __stat stat
#endif
/* Suppress bogus GCC -Wmaybe-uninitialized warnings. */
#if defined GCC_LINT || defined lint
# define IF_LINT(Code) Code
#else
# define IF_LINT(Code) /* empty */
#endif
#ifndef DOUBLE_SLASH_IS_DISTINCT_ROOT
# define DOUBLE_SLASH_IS_DISTINCT_ROOT 0
# define DOUBLE_SLASH_IS_DISTINCT_ROOT false
#endif
/* Define this independently so that stdint.h is not a prerequisite. */
#ifndef SIZE_MAX
# define SIZE_MAX ((size_t) -1)
#endif
#if defined _LIBC || !FUNC_REALPATH_WORKS
#if !FUNC_REALPATH_WORKS || defined _LIBC
static void
alloc_failed (void)
/* Return true if FILE's existence can be shown, false (setting errno)
otherwise. Follow symbolic links. */
static bool
file_accessible (char const *file)
{
#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
/* Avoid errno problem without using the malloc or realloc modules; see:
http://lists.gnu.org/archive/html/bug-gnulib/2016-08/msg00025.html */
errno = ENOMEM;
#endif
# if defined _LIBC || HAVE_FACCESSAT
return __faccessat (AT_FDCWD, file, F_OK, AT_EACCESS) == 0;
# else
struct stat st;
return __stat (file, &st) == 0 || errno == EOVERFLOW;
# endif
}
/* Return the canonical absolute name of file NAME. A canonical name
does not contain any ".", ".." components nor any repeated path
separators ('/') or symlinks. All path components must exist. If
RESOLVED is null, the result is malloc'd; otherwise, if the
canonical name is PATH_MAX chars or more, returns null with 'errno'
set to ENAMETOOLONG; if the name fits in fewer than PATH_MAX chars,
returns the name in RESOLVED. If the name cannot be resolved and
RESOLVED is non-NULL, it contains the path of the first component
that cannot be resolved. If the path can be resolved, RESOLVED
holds the same value as the value returned. */
/* True if concatenating END as a suffix to a file name means that the
code needs to check that the file name is that of a searchable
directory, since the canonicalize_filename_mode_stk code won't
check this later anyway when it checks an ordinary file name
component within END. END must either be empty, or start with a
slash. */
char *
__realpath (const char *name, char *resolved)
static bool _GL_ATTRIBUTE_PURE
suffix_requires_dir_check (char const *end)
{
char *rpath, *dest, *extra_buf = NULL;
const char *start, *end, *rpath_limit;
long int path_max;
/* If END does not start with a slash, the suffix is OK. */
while (ISSLASH (*end))
{
/* Two or more slashes act like a single slash. */
do
end++;
while (ISSLASH (*end));
switch (*end++)
{
default: return false; /* An ordinary file name component is OK. */
case '\0': return true; /* Trailing "/" is trouble. */
case '.': break; /* Possibly "." or "..". */
}
/* Trailing "/.", or "/.." even if not trailing, is trouble. */
if (!*end || (*end == '.' && (!end[1] || ISSLASH (end[1]))))
return true;
}
return false;
}
/* Append this to a file name to test whether it is a searchable directory.
On POSIX platforms "/" suffices, but "/./" is sometimes needed on
macOS 10.13 <https://bugs.gnu.org/30350>, and should also work on
platforms like AIX 7.2 that need at least "/.". */
# if defined _LIBC || defined LSTAT_FOLLOWS_SLASHED_SYMLINK
static char const dir_suffix[] = "/";
# else
static char const dir_suffix[] = "/./";
# endif
/* Return true if DIR is a searchable dir, false (setting errno) otherwise.
DIREND points to the NUL byte at the end of the DIR string.
Store garbage into DIREND[0 .. strlen (dir_suffix)]. */
static bool
dir_check (char *dir, char *dirend)
{
strcpy (dirend, dir_suffix);
return file_accessible (dir);
}
static idx_t
get_path_max (void)
{
# ifdef PATH_MAX
long int path_max = PATH_MAX;
# else
/* The caller invoked realpath with a null RESOLVED, even though
PATH_MAX is not defined as a constant. The glibc manual says
programs should not do this, and POSIX says the behavior is undefined.
Historically, glibc here used the result of pathconf, or 1024 if that
failed; stay consistent with this (dubious) historical practice. */
int err = errno;
long int path_max = __pathconf ("/", _PC_PATH_MAX);
__set_errno (err);
# endif
return path_max < 0 ? 1024 : path_max <= IDX_MAX ? path_max : IDX_MAX;
}
/* Act like __realpath (see below), with an additional argument
rname_buf that can be used as temporary storage.
If GCC_LINT is defined, do not inline this function with GCC 10.1
and later, to avoid creating a pointer to the stack that GCC
-Wreturn-local-addr incorrectly complains about. See:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93644
Although the noinline attribute can hurt performance a bit, no better way
to pacify GCC is known; even an explicit #pragma does not pacify GCC.
When the GCC bug is fixed this workaround should be limited to the
broken GCC versions. */
# if __GNUC_PREREQ (10, 1)
# if defined GCC_LINT || defined lint
__attribute__ ((__noinline__))
# elif __OPTIMIZE__ && !__NO_INLINE__
# define GCC_BOGUS_WRETURN_LOCAL_ADDR
# endif
# endif
static char *
realpath_stk (const char *name, char *resolved,
struct scratch_buffer *rname_buf)
{
char *dest;
char const *start;
char const *end;
int num_links = 0;
size_t prefix_len;
if (name == NULL)
{
@ -138,203 +221,148 @@ __realpath (const char *name, char *resolved)
return NULL;
}
#ifdef PATH_MAX
path_max = PATH_MAX;
#else
path_max = pathconf (name, _PC_PATH_MAX);
if (path_max <= 0)
path_max = 8192;
#endif
if (resolved == NULL)
{
rpath = malloc (path_max);
if (rpath == NULL)
{
alloc_failed ();
return NULL;
}
}
else
rpath = resolved;
rpath_limit = rpath + path_max;
struct scratch_buffer extra_buffer, link_buffer;
scratch_buffer_init (&extra_buffer);
scratch_buffer_init (&link_buffer);
scratch_buffer_init (rname_buf);
char *rname_on_stack = rname_buf->data;
char *rname = rname_on_stack;
bool end_in_extra_buffer = false;
bool failed = true;
/* This is always zero for Posix hosts, but can be 2 for MS-Windows
and MS-DOS X:/foo/bar file names. */
prefix_len = FILE_SYSTEM_PREFIX_LEN (name);
idx_t prefix_len = FILE_SYSTEM_PREFIX_LEN (name);
if (!IS_ABSOLUTE_FILE_NAME (name))
{
if (!__getcwd (rpath, path_max))
while (!__getcwd (rname, rname_buf->length))
{
rpath[0] = '\0';
goto error;
if (errno != ERANGE)
{
dest = rname;
goto error;
}
if (!scratch_buffer_grow (rname_buf))
goto error_nomem;
rname = rname_buf->data;
}
dest = strchr (rpath, '\0');
dest = __rawmemchr (rname, '\0');
start = name;
prefix_len = FILE_SYSTEM_PREFIX_LEN (rpath);
prefix_len = FILE_SYSTEM_PREFIX_LEN (rname);
}
else
{
dest = rpath;
if (prefix_len)
{
memcpy (rpath, name, prefix_len);
dest += prefix_len;
}
dest = __mempcpy (rname, name, prefix_len);
*dest++ = '/';
if (DOUBLE_SLASH_IS_DISTINCT_ROOT)
{
if (ISSLASH (name[1]) && !ISSLASH (name[2]) && !prefix_len)
if (prefix_len == 0 /* implies ISSLASH (name[0]) */
&& ISSLASH (name[1]) && !ISSLASH (name[2]))
*dest++ = '/';
*dest = '\0';
}
start = name + prefix_len;
}
for (end = start; *start; start = end)
for ( ; *start; start = end)
{
#ifdef _LIBC
struct stat64 st;
#else
struct stat st;
#endif
/* Skip sequence of multiple path-separators. */
/* Skip sequence of multiple file name separators. */
while (ISSLASH (*start))
++start;
/* Find end of path component. */
/* Find end of component. */
for (end = start; *end && !ISSLASH (*end); ++end)
/* Nothing. */;
if (end - start == 0)
/* Length of this file name component; it can be zero if a file
name ends in '/'. */
idx_t startlen = end - start;
if (startlen == 0)
break;
else if (end - start == 1 && start[0] == '.')
else if (startlen == 1 && start[0] == '.')
/* nothing */;
else if (end - start == 2 && start[0] == '.' && start[1] == '.')
else if (startlen == 2 && start[0] == '.' && start[1] == '.')
{
/* Back up to previous component, ignore if at root already. */
if (dest > rpath + prefix_len + 1)
for (--dest; dest > rpath && !ISSLASH (dest[-1]); --dest)
if (dest > rname + prefix_len + 1)
for (--dest; dest > rname && !ISSLASH (dest[-1]); --dest)
continue;
if (DOUBLE_SLASH_IS_DISTINCT_ROOT
&& dest == rpath + 1 && !prefix_len
&& dest == rname + 1 && !prefix_len
&& ISSLASH (*dest) && !ISSLASH (dest[1]))
dest++;
}
else
{
size_t new_size;
if (!ISSLASH (dest[-1]))
*dest++ = '/';
if (dest + (end - start) >= rpath_limit)
while (rname + rname_buf->length - dest
< startlen + sizeof dir_suffix)
{
ptrdiff_t dest_offset = dest - rpath;
char *new_rpath;
if (resolved)
{
__set_errno (ENAMETOOLONG);
if (dest > rpath + prefix_len + 1)
dest--;
*dest = '\0';
goto error;
}
new_size = rpath_limit - rpath;
if (end - start + 1 > path_max)
new_size += end - start + 1;
else
new_size += path_max;
new_rpath = (char *) realloc (rpath, new_size);
if (new_rpath == NULL)
{
alloc_failed ();
goto error;
}
rpath = new_rpath;
rpath_limit = rpath + new_size;
dest = rpath + dest_offset;
idx_t dest_offset = dest - rname;
if (!scratch_buffer_grow_preserve (rname_buf))
goto error_nomem;
rname = rname_buf->data;
dest = rname + dest_offset;
}
#ifdef _LIBC
dest = __mempcpy (dest, start, end - start);
#else
memcpy (dest, start, end - start);
dest += end - start;
#endif
dest = __mempcpy (dest, start, startlen);
*dest = '\0';
#ifdef _LIBC
if (__lxstat64 (_STAT_VER, rpath, &st) < 0)
#else
if (lstat (rpath, &st) < 0)
#endif
goto error;
if (S_ISLNK (st.st_mode))
char *buf;
ssize_t n;
while (true)
{
char *buf;
size_t len;
ssize_t n;
if (++num_links > MAXSYMLINKS)
buf = link_buffer.data;
idx_t bufsize = link_buffer.length;
n = __readlink (rname, buf, bufsize - 1);
if (n < bufsize - 1)
break;
if (!scratch_buffer_grow (&link_buffer))
goto error_nomem;
}
if (0 <= n)
{
if (++num_links > __eloop_threshold ())
{
__set_errno (ELOOP);
goto error;
}
buf = malloca (path_max);
if (!buf)
{
__set_errno (ENOMEM);
goto error;
}
n = __readlink (rpath, buf, path_max - 1);
if (n < 0)
{
int saved_errno = errno;
freea (buf);
__set_errno (saved_errno);
goto error;
}
buf[n] = '\0';
if (!extra_buf)
char *extra_buf = extra_buffer.data;
idx_t end_idx IF_LINT (= 0);
if (end_in_extra_buffer)
end_idx = end - extra_buf;
size_t len = strlen (end);
if (INT_ADD_OVERFLOW (len, n))
{
extra_buf = malloca (path_max);
if (!extra_buf)
{
freea (buf);
__set_errno (ENOMEM);
goto error;
}
__set_errno (ENOMEM);
goto error_nomem;
}
len = strlen (end);
/* Check that n + len + 1 doesn't overflow and is <= path_max. */
if (n >= SIZE_MAX - len || n + len >= path_max)
while (extra_buffer.length <= len + n)
{
freea (buf);
__set_errno (ENAMETOOLONG);
goto error;
if (!scratch_buffer_grow_preserve (&extra_buffer))
goto error_nomem;
extra_buf = extra_buffer.data;
}
if (end_in_extra_buffer)
end = extra_buf + end_idx;
/* Careful here, end may be a pointer into extra_buf... */
memmove (&extra_buf[n], end, len + 1);
name = end = memcpy (extra_buf, buf, n);
end_in_extra_buffer = true;
if (IS_ABSOLUTE_FILE_NAME (buf))
{
size_t pfxlen = FILE_SYSTEM_PREFIX_LEN (buf);
idx_t pfxlen = FILE_SYSTEM_PREFIX_LEN (buf);
if (pfxlen)
memcpy (rpath, buf, pfxlen);
dest = rpath + pfxlen;
dest = __mempcpy (rname, buf, pfxlen);
*dest++ = '/'; /* It's an absolute symlink */
if (DOUBLE_SLASH_IS_DISTINCT_ROOT)
{
@ -349,46 +377,70 @@ __realpath (const char *name, char *resolved)
{
/* Back up to previous component, ignore if at root
already: */
if (dest > rpath + prefix_len + 1)
for (--dest; dest > rpath && !ISSLASH (dest[-1]); --dest)
if (dest > rname + prefix_len + 1)
for (--dest; dest > rname && !ISSLASH (dest[-1]); --dest)
continue;
if (DOUBLE_SLASH_IS_DISTINCT_ROOT && dest == rpath + 1
if (DOUBLE_SLASH_IS_DISTINCT_ROOT && dest == rname + 1
&& ISSLASH (*dest) && !ISSLASH (dest[1]) && !prefix_len)
dest++;
}
}
else if (!S_ISDIR (st.st_mode) && *end != '\0')
{
__set_errno (ENOTDIR);
goto error;
}
else if (! (suffix_requires_dir_check (end)
? dir_check (rname, dest)
: errno == EINVAL))
goto error;
}
}
if (dest > rpath + prefix_len + 1 && ISSLASH (dest[-1]))
if (dest > rname + prefix_len + 1 && ISSLASH (dest[-1]))
--dest;
if (DOUBLE_SLASH_IS_DISTINCT_ROOT && dest == rpath + 1 && !prefix_len
if (DOUBLE_SLASH_IS_DISTINCT_ROOT && dest == rname + 1 && !prefix_len
&& ISSLASH (*dest) && !ISSLASH (dest[1]))
dest++;
*dest = '\0';
if (extra_buf)
freea (extra_buf);
return rpath;
failed = false;
error:
{
int saved_errno = errno;
if (extra_buf)
freea (extra_buf);
if (resolved == NULL)
free (rpath);
__set_errno (saved_errno);
}
return NULL;
*dest++ = '\0';
if (resolved != NULL && dest - rname <= get_path_max ())
rname = strcpy (resolved, rname);
error_nomem:
scratch_buffer_free (&extra_buffer);
scratch_buffer_free (&link_buffer);
if (failed || rname == resolved)
{
scratch_buffer_free (rname_buf);
return failed ? NULL : resolved;
}
return scratch_buffer_dupfree (rname_buf, dest - rname);
}
/* Return the canonical absolute name of file NAME. A canonical name
does not contain any ".", ".." components nor any repeated file name
separators ('/') or symlinks. All file name components must exist. If
RESOLVED is null, the result is malloc'd; otherwise, if the
canonical name is PATH_MAX chars or more, returns null with 'errno'
set to ENAMETOOLONG; if the name fits in fewer than PATH_MAX chars,
returns the name in RESOLVED. If the name cannot be resolved and
RESOLVED is non-NULL, it contains the name of the first component
that cannot be resolved. If the name can be resolved, RESOLVED
holds the same value as the value returned. */
char *
__realpath (const char *name, char *resolved)
{
#ifdef GCC_BOGUS_WRETURN_LOCAL_ADDR
#warning "GCC might issue a bogus -Wreturn-local-addr warning here."
#warning "See <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93644>."
#endif
struct scratch_buffer rname_buffer;
return realpath_stk (name, resolved, &rname_buffer);
}
libc_hidden_def (__realpath)
versioned_symbol (libc, __realpath, realpath, GLIBC_2_3);
#endif /* !FUNC_REALPATH_WORKS || defined _LIBC */
#endif /* defined _LIBC || !FUNC_REALPATH_WORKS */
#if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_3)
@ -414,11 +466,3 @@ __canonicalize_file_name (const char *name)
return __realpath (name, NULL);
}
weak_alias (__canonicalize_file_name, canonicalize_file_name)
#else
/* This declaration is solely to ensure that after preprocessing
this file is never empty. */
typedef int dummy;
#endif

606
lib/cdefs.h Normal file
View file

@ -0,0 +1,606 @@
/* Copyright (C) 1992-2021 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#ifndef _SYS_CDEFS_H
#define _SYS_CDEFS_H 1
/* We are almost always included from features.h. */
#ifndef _FEATURES_H
# include <features.h>
#endif
/* The GNU libc does not support any K&R compilers or the traditional mode
of ISO C compilers anymore. Check for some of the combinations not
supported anymore. */
#if defined __GNUC__ && !defined __STDC__
# error "You need a ISO C conforming compiler to use the glibc headers"
#endif
/* Some user header file might have defined this before. */
#undef __P
#undef __PMT
/* Compilers that lack __has_attribute may object to
#if defined __has_attribute && __has_attribute (...)
even though they do not need to evaluate the right-hand side of the &&.
Similarly for __has_builtin, etc. */
#ifdef __has_attribute
# define __glibc_has_attribute(attr) __has_attribute (attr)
#else
# define __glibc_has_attribute(attr) 0
#endif
#ifdef __has_builtin
# define __glibc_has_builtin(name) __has_builtin (name)
#else
# define __glibc_has_builtin(name) 0
#endif
#ifdef __has_extension
# define __glibc_has_extension(ext) __has_extension (ext)
#else
# define __glibc_has_extension(ext) 0
#endif
#if defined __GNUC__ || defined __clang__
/* All functions, except those with callbacks or those that
synchronize memory, are leaf functions. */
# if __GNUC_PREREQ (4, 6) && !defined _LIBC
# define __LEAF , __leaf__
# define __LEAF_ATTR __attribute__ ((__leaf__))
# else
# define __LEAF
# define __LEAF_ATTR
# endif
/* GCC can always grok prototypes. For C++ programs we add throw()
to help it optimize the function calls. But this only works with
gcc 2.8.x and egcs. For gcc 3.4 and up we even mark C functions
as non-throwing using a function attribute since programs can use
the -fexceptions options for C code as well. */
# if !defined __cplusplus \
&& (__GNUC_PREREQ (3, 4) || __glibc_has_attribute (__nothrow__))
# define __THROW __attribute__ ((__nothrow__ __LEAF))
# define __THROWNL __attribute__ ((__nothrow__))
# define __NTH(fct) __attribute__ ((__nothrow__ __LEAF)) fct
# define __NTHNL(fct) __attribute__ ((__nothrow__)) fct
# else
# if defined __cplusplus && (__GNUC_PREREQ (2,8) || __clang_major >= 4)
# if __cplusplus >= 201103L
# define __THROW noexcept (true)
# else
# define __THROW throw ()
# endif
# define __THROWNL __THROW
# define __NTH(fct) __LEAF_ATTR fct __THROW
# define __NTHNL(fct) fct __THROW
# else
# define __THROW
# define __THROWNL
# define __NTH(fct) fct
# define __NTHNL(fct) fct
# endif
# endif
#else /* Not GCC or clang. */
# if (defined __cplusplus \
|| (defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L))
# define __inline inline
# else
# define __inline /* No inline functions. */
# endif
# define __THROW
# define __THROWNL
# define __NTH(fct) fct
#endif /* GCC || clang. */
/* These two macros are not used in glibc anymore. They are kept here
only because some other projects expect the macros to be defined. */
#define __P(args) args
#define __PMT(args) args
/* For these things, GCC behaves the ANSI way normally,
and the non-ANSI way under -traditional. */
#define __CONCAT(x,y) x ## y
#define __STRING(x) #x
/* This is not a typedef so `const __ptr_t' does the right thing. */
#define __ptr_t void *
/* C++ needs to know that types and declarations are C, not C++. */
#ifdef __cplusplus
# define __BEGIN_DECLS extern "C" {
# define __END_DECLS }
#else
# define __BEGIN_DECLS
# define __END_DECLS
#endif
/* Fortify support. */
#define __bos(ptr) __builtin_object_size (ptr, __USE_FORTIFY_LEVEL > 1)
#define __bos0(ptr) __builtin_object_size (ptr, 0)
/* Use __builtin_dynamic_object_size at _FORTIFY_SOURCE=3 when available. */
#if __USE_FORTIFY_LEVEL == 3 && __glibc_clang_prereq (9, 0)
# define __glibc_objsize0(__o) __builtin_dynamic_object_size (__o, 0)
# define __glibc_objsize(__o) __builtin_dynamic_object_size (__o, 1)
#else
# define __glibc_objsize0(__o) __bos0 (__o)
# define __glibc_objsize(__o) __bos (__o)
#endif
#if __GNUC_PREREQ (4,3)
# define __warnattr(msg) __attribute__((__warning__ (msg)))
# define __errordecl(name, msg) \
extern void name (void) __attribute__((__error__ (msg)))
#else
# define __warnattr(msg)
# define __errordecl(name, msg) extern void name (void)
#endif
/* Support for flexible arrays.
Headers that should use flexible arrays only if they're "real"
(e.g. only if they won't affect sizeof()) should test
#if __glibc_c99_flexarr_available. */
#if defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L && !defined __HP_cc
# define __flexarr []
# define __glibc_c99_flexarr_available 1
#elif __GNUC_PREREQ (2,97) || defined __clang__
/* GCC 2.97 and clang support C99 flexible array members as an extension,
even when in C89 mode or compiling C++ (any version). */
# define __flexarr []
# define __glibc_c99_flexarr_available 1
#elif defined __GNUC__
/* Pre-2.97 GCC did not support C99 flexible arrays but did have
an equivalent extension with slightly different notation. */
# define __flexarr [0]
# define __glibc_c99_flexarr_available 1
#else
/* Some other non-C99 compiler. Approximate with [1]. */
# define __flexarr [1]
# define __glibc_c99_flexarr_available 0
#endif
/* __asm__ ("xyz") is used throughout the headers to rename functions
at the assembly language level. This is wrapped by the __REDIRECT
macro, in order to support compilers that can do this some other
way. When compilers don't support asm-names at all, we have to do
preprocessor tricks instead (which don't have exactly the right
semantics, but it's the best we can do).
Example:
int __REDIRECT(setpgrp, (__pid_t pid, __pid_t pgrp), setpgid); */
#if (defined __GNUC__ && __GNUC__ >= 2) || (__clang_major__ >= 4)
# define __REDIRECT(name, proto, alias) name proto __asm__ (__ASMNAME (#alias))
# ifdef __cplusplus
# define __REDIRECT_NTH(name, proto, alias) \
name proto __THROW __asm__ (__ASMNAME (#alias))
# define __REDIRECT_NTHNL(name, proto, alias) \
name proto __THROWNL __asm__ (__ASMNAME (#alias))
# else
# define __REDIRECT_NTH(name, proto, alias) \
name proto __asm__ (__ASMNAME (#alias)) __THROW
# define __REDIRECT_NTHNL(name, proto, alias) \
name proto __asm__ (__ASMNAME (#alias)) __THROWNL
# endif
# define __ASMNAME(cname) __ASMNAME2 (__USER_LABEL_PREFIX__, cname)
# define __ASMNAME2(prefix, cname) __STRING (prefix) cname
/*
#elif __SOME_OTHER_COMPILER__
# define __REDIRECT(name, proto, alias) name proto; \
_Pragma("let " #name " = " #alias)
*/
#endif
/* GCC and clang have various useful declarations that can be made with
the '__attribute__' syntax. All of the ways we use this do fine if
they are omitted for compilers that don't understand it. */
#if !(defined __GNUC__ || defined __clang__)
# define __attribute__(xyz) /* Ignore */
#endif
/* At some point during the gcc 2.96 development the `malloc' attribute
for functions was introduced. We don't want to use it unconditionally
(although this would be possible) since it generates warnings. */
#if __GNUC_PREREQ (2,96) || __glibc_has_attribute (__malloc__)
# define __attribute_malloc__ __attribute__ ((__malloc__))
#else
# define __attribute_malloc__ /* Ignore */
#endif
/* Tell the compiler which arguments to an allocation function
indicate the size of the allocation. */
#if __GNUC_PREREQ (4, 3)
# define __attribute_alloc_size__(params) \
__attribute__ ((__alloc_size__ params))
#else
# define __attribute_alloc_size__(params) /* Ignore. */
#endif
/* At some point during the gcc 2.96 development the `pure' attribute
for functions was introduced. We don't want to use it unconditionally
(although this would be possible) since it generates warnings. */
#if __GNUC_PREREQ (2,96) || __glibc_has_attribute (__pure__)
# define __attribute_pure__ __attribute__ ((__pure__))
#else
# define __attribute_pure__ /* Ignore */
#endif
/* This declaration tells the compiler that the value is constant. */
#if __GNUC_PREREQ (2,5) || __glibc_has_attribute (__const__)
# define __attribute_const__ __attribute__ ((__const__))
#else
# define __attribute_const__ /* Ignore */
#endif
#if defined __STDC_VERSION__ && 201710L < __STDC_VERSION__
# define __attribute_maybe_unused__ [[__maybe_unused__]]
#elif __GNUC_PREREQ (2,7) || __glibc_has_attribute (__unused__)
# define __attribute_maybe_unused__ __attribute__ ((__unused__))
#else
# define __attribute_maybe_unused__ /* Ignore */
#endif
/* At some point during the gcc 3.1 development the `used' attribute
for functions was introduced. We don't want to use it unconditionally
(although this would be possible) since it generates warnings. */
#if __GNUC_PREREQ (3,1) || __glibc_has_attribute (__used__)
# define __attribute_used__ __attribute__ ((__used__))
# define __attribute_noinline__ __attribute__ ((__noinline__))
#else
# define __attribute_used__ __attribute__ ((__unused__))
# define __attribute_noinline__ /* Ignore */
#endif
/* Since version 3.2, gcc allows marking deprecated functions. */
#if __GNUC_PREREQ (3,2) || __glibc_has_attribute (__deprecated__)
# define __attribute_deprecated__ __attribute__ ((__deprecated__))
#else
# define __attribute_deprecated__ /* Ignore */
#endif
/* Since version 4.5, gcc also allows one to specify the message printed
when a deprecated function is used. clang claims to be gcc 4.2, but
may also support this feature. */
#if __GNUC_PREREQ (4,5) \
|| __glibc_has_extension (__attribute_deprecated_with_message__)
# define __attribute_deprecated_msg__(msg) \
__attribute__ ((__deprecated__ (msg)))
#else
# define __attribute_deprecated_msg__(msg) __attribute_deprecated__
#endif
/* At some point during the gcc 2.8 development the `format_arg' attribute
for functions was introduced. We don't want to use it unconditionally
(although this would be possible) since it generates warnings.
If several `format_arg' attributes are given for the same function, in
gcc-3.0 and older, all but the last one are ignored. In newer gccs,
all designated arguments are considered. */
#if __GNUC_PREREQ (2,8) || __glibc_has_attribute (__format_arg__)
# define __attribute_format_arg__(x) __attribute__ ((__format_arg__ (x)))
#else
# define __attribute_format_arg__(x) /* Ignore */
#endif
/* At some point during the gcc 2.97 development the `strfmon' format
attribute for functions was introduced. We don't want to use it
unconditionally (although this would be possible) since it
generates warnings. */
#if __GNUC_PREREQ (2,97) || __glibc_has_attribute (__format__)
# define __attribute_format_strfmon__(a,b) \
__attribute__ ((__format__ (__strfmon__, a, b)))
#else
# define __attribute_format_strfmon__(a,b) /* Ignore */
#endif
/* The nonnull function attribute marks pointer parameters that
must not be NULL. Do not define __nonnull if it is already defined,
for portability when this file is used in Gnulib. */
#ifndef __nonnull
# if __GNUC_PREREQ (3,3) || __glibc_has_attribute (__nonnull__)
# define __nonnull(params) __attribute__ ((__nonnull__ params))
# else
# define __nonnull(params)
# endif
#endif
/* If fortification mode, we warn about unused results of certain
function calls which can lead to problems. */
#if __GNUC_PREREQ (3,4) || __glibc_has_attribute (__warn_unused_result__)
# define __attribute_warn_unused_result__ \
__attribute__ ((__warn_unused_result__))
# if defined __USE_FORTIFY_LEVEL && __USE_FORTIFY_LEVEL > 0
# define __wur __attribute_warn_unused_result__
# endif
#else
# define __attribute_warn_unused_result__ /* empty */
#endif
#ifndef __wur
# define __wur /* Ignore */
#endif
/* Forces a function to be always inlined. */
#if __GNUC_PREREQ (3,2) || __glibc_has_attribute (__always_inline__)
/* The Linux kernel defines __always_inline in stddef.h (283d7573), and
it conflicts with this definition. Therefore undefine it first to
allow either header to be included first. */
# undef __always_inline
# define __always_inline __inline __attribute__ ((__always_inline__))
#else
# undef __always_inline
# define __always_inline __inline
#endif
/* Associate error messages with the source location of the call site rather
than with the source location inside the function. */
#if __GNUC_PREREQ (4,3) || __glibc_has_attribute (__artificial__)
# define __attribute_artificial__ __attribute__ ((__artificial__))
#else
# define __attribute_artificial__ /* Ignore */
#endif
/* GCC 4.3 and above with -std=c99 or -std=gnu99 implements ISO C99
inline semantics, unless -fgnu89-inline is used. Using __GNUC_STDC_INLINE__
or __GNUC_GNU_INLINE is not a good enough check for gcc because gcc versions
older than 4.3 may define these macros and still not guarantee GNU inlining
semantics.
clang++ identifies itself as gcc-4.2, but has support for GNU inlining
semantics, that can be checked for by using the __GNUC_STDC_INLINE_ and
__GNUC_GNU_INLINE__ macro definitions. */
#if (!defined __cplusplus || __GNUC_PREREQ (4,3) \
|| (defined __clang__ && (defined __GNUC_STDC_INLINE__ \
|| defined __GNUC_GNU_INLINE__)))
# if defined __GNUC_STDC_INLINE__ || defined __cplusplus
# define __extern_inline extern __inline __attribute__ ((__gnu_inline__))
# define __extern_always_inline \
extern __always_inline __attribute__ ((__gnu_inline__))
# else
# define __extern_inline extern __inline
# define __extern_always_inline extern __always_inline
# endif
#endif
#ifdef __extern_always_inline
# define __fortify_function __extern_always_inline __attribute_artificial__
#endif
/* GCC 4.3 and above allow passing all anonymous arguments of an
__extern_always_inline function to some other vararg function. */
#if __GNUC_PREREQ (4,3)
# define __va_arg_pack() __builtin_va_arg_pack ()
# define __va_arg_pack_len() __builtin_va_arg_pack_len ()
#endif
/* It is possible to compile containing GCC extensions even if GCC is
run in pedantic mode if the uses are carefully marked using the
`__extension__' keyword. But this is not generally available before
version 2.8. */
#if !(__GNUC_PREREQ (2,8) || defined __clang__)
# define __extension__ /* Ignore */
#endif
/* __restrict is known in EGCS 1.2 and above, and in clang.
It works also in C++ mode (outside of arrays), but only when spelled
as '__restrict', not 'restrict'. */
#if !(__GNUC_PREREQ (2,92) || __clang_major__ >= 3)
# if defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L
# define __restrict restrict
# else
# define __restrict /* Ignore */
# endif
#endif
/* ISO C99 also allows to declare arrays as non-overlapping. The syntax is
array_name[restrict]
GCC 3.1 and clang support this.
This syntax is not usable in C++ mode. */
#if (__GNUC_PREREQ (3,1) || __clang_major__ >= 3) && !defined __cplusplus
# define __restrict_arr __restrict
#else
# ifdef __GNUC__
# define __restrict_arr /* Not supported in old GCC. */
# else
# if defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L
# define __restrict_arr restrict
# else
/* Some other non-C99 compiler. */
# define __restrict_arr /* Not supported. */
# endif
# endif
#endif
#if (__GNUC__ >= 3) || __glibc_has_builtin (__builtin_expect)
# define __glibc_unlikely(cond) __builtin_expect ((cond), 0)
# define __glibc_likely(cond) __builtin_expect ((cond), 1)
#else
# define __glibc_unlikely(cond) (cond)
# define __glibc_likely(cond) (cond)
#endif
#if (!defined _Noreturn \
&& (defined __STDC_VERSION__ ? __STDC_VERSION__ : 0) < 201112 \
&& !(__GNUC_PREREQ (4,7) \
|| (3 < __clang_major__ + (5 <= __clang_minor__))))
# if __GNUC_PREREQ (2,8)
# define _Noreturn __attribute__ ((__noreturn__))
# else
# define _Noreturn
# endif
#endif
#if __GNUC_PREREQ (8, 0)
/* Describes a char array whose address can safely be passed as the first
argument to strncpy and strncat, as the char array is not necessarily
a NUL-terminated string. */
# define __attribute_nonstring__ __attribute__ ((__nonstring__))
#else
# define __attribute_nonstring__
#endif
/* Undefine (also defined in libc-symbols.h). */
#undef __attribute_copy__
#if __GNUC_PREREQ (9, 0)
/* Copies attributes from the declaration or type referenced by
the argument. */
# define __attribute_copy__(arg) __attribute__ ((__copy__ (arg)))
#else
# define __attribute_copy__(arg)
#endif
#if (!defined _Static_assert && !defined __cplusplus \
&& (defined __STDC_VERSION__ ? __STDC_VERSION__ : 0) < 201112 \
&& (!(__GNUC_PREREQ (4, 6) || __clang_major__ >= 4) \
|| defined __STRICT_ANSI__))
# define _Static_assert(expr, diagnostic) \
extern int (*__Static_assert_function (void)) \
[!!sizeof (struct { int __error_if_negative: (expr) ? 2 : -1; })]
#endif
/* The #ifndef lets Gnulib avoid including these on non-glibc
platforms, where the includes typically do not exist. */
#ifndef __WORDSIZE
# include <bits/wordsize.h>
# include <bits/long-double.h>
#endif
#if __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1
# ifdef __REDIRECT
/* Alias name defined automatically. */
# define __LDBL_REDIR(name, proto) ... unused__ldbl_redir
# define __LDBL_REDIR_DECL(name) \
extern __typeof (name) name __asm (__ASMNAME ("__" #name "ieee128"));
/* Alias name defined automatically, with leading underscores. */
# define __LDBL_REDIR2_DECL(name) \
extern __typeof (__##name) __##name \
__asm (__ASMNAME ("__" #name "ieee128"));
/* Alias name defined manually. */
# define __LDBL_REDIR1(name, proto, alias) ... unused__ldbl_redir1
# define __LDBL_REDIR1_DECL(name, alias) \
extern __typeof (name) name __asm (__ASMNAME (#alias));
# define __LDBL_REDIR1_NTH(name, proto, alias) \
__REDIRECT_NTH (name, proto, alias)
# define __REDIRECT_NTH_LDBL(name, proto, alias) \
__LDBL_REDIR1_NTH (name, proto, __##alias##ieee128)
/* Unused. */
# define __REDIRECT_LDBL(name, proto, alias) ... unused__redirect_ldbl
# define __LDBL_REDIR_NTH(name, proto) ... unused__ldbl_redir_nth
# else
_Static_assert (0, "IEEE 128-bits long double requires redirection on this platform");
# endif
#elif defined __LONG_DOUBLE_MATH_OPTIONAL && defined __NO_LONG_DOUBLE_MATH
# define __LDBL_COMPAT 1
# ifdef __REDIRECT
# define __LDBL_REDIR1(name, proto, alias) __REDIRECT (name, proto, alias)
# define __LDBL_REDIR(name, proto) \
__LDBL_REDIR1 (name, proto, __nldbl_##name)
# define __LDBL_REDIR1_NTH(name, proto, alias) __REDIRECT_NTH (name, proto, alias)
# define __LDBL_REDIR_NTH(name, proto) \
__LDBL_REDIR1_NTH (name, proto, __nldbl_##name)
# define __LDBL_REDIR2_DECL(name) \
extern __typeof (__##name) __##name __asm (__ASMNAME ("__nldbl___" #name));
# define __LDBL_REDIR1_DECL(name, alias) \
extern __typeof (name) name __asm (__ASMNAME (#alias));
# define __LDBL_REDIR_DECL(name) \
extern __typeof (name) name __asm (__ASMNAME ("__nldbl_" #name));
# define __REDIRECT_LDBL(name, proto, alias) \
__LDBL_REDIR1 (name, proto, __nldbl_##alias)
# define __REDIRECT_NTH_LDBL(name, proto, alias) \
__LDBL_REDIR1_NTH (name, proto, __nldbl_##alias)
# endif
#endif
#if (!defined __LDBL_COMPAT && __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 0) \
|| !defined __REDIRECT
# define __LDBL_REDIR1(name, proto, alias) name proto
# define __LDBL_REDIR(name, proto) name proto
# define __LDBL_REDIR1_NTH(name, proto, alias) name proto __THROW
# define __LDBL_REDIR_NTH(name, proto) name proto __THROW
# define __LDBL_REDIR2_DECL(name)
# define __LDBL_REDIR_DECL(name)
# ifdef __REDIRECT
# define __REDIRECT_LDBL(name, proto, alias) __REDIRECT (name, proto, alias)
# define __REDIRECT_NTH_LDBL(name, proto, alias) \
__REDIRECT_NTH (name, proto, alias)
# endif
#endif
/* __glibc_macro_warning (MESSAGE) issues warning MESSAGE. This is
intended for use in preprocessor macros.
Note: MESSAGE must be a _single_ string; concatenation of string
literals is not supported. */
#if __GNUC_PREREQ (4,8) || __glibc_clang_prereq (3,5)
# define __glibc_macro_warning1(message) _Pragma (#message)
# define __glibc_macro_warning(message) \
__glibc_macro_warning1 (GCC warning message)
#else
# define __glibc_macro_warning(msg)
#endif
/* Generic selection (ISO C11) is a C-only feature, available in GCC
since version 4.9. Previous versions do not provide generic
selection, even though they might set __STDC_VERSION__ to 201112L,
when in -std=c11 mode. Thus, we must check for !defined __GNUC__
when testing __STDC_VERSION__ for generic selection support.
On the other hand, Clang also defines __GNUC__, so a clang-specific
check is required to enable the use of generic selection. */
#if !defined __cplusplus \
&& (__GNUC_PREREQ (4, 9) \
|| __glibc_has_extension (c_generic_selections) \
|| (!defined __GNUC__ && defined __STDC_VERSION__ \
&& __STDC_VERSION__ >= 201112L))
# define __HAVE_GENERIC_SELECTION 1
#else
# define __HAVE_GENERIC_SELECTION 0
#endif
#if __GNUC_PREREQ (10, 0)
/* Designates a 1-based positional argument ref-index of pointer type
that can be used to access size-index elements of the pointed-to
array according to access mode, or at least one element when
size-index is not provided:
access (access-mode, <ref-index> [, <size-index>]) */
#define __attr_access(x) __attribute__ ((__access__ x))
#else
# define __attr_access(x)
#endif
/* Specify that a function such as setjmp or vfork may return
twice. */
#if __GNUC_PREREQ (4, 1)
# define __attribute_returns_twice__ __attribute__ ((__returns_twice__))
#else
# define __attribute_returns_twice__ /* Ignore. */
#endif
#endif /* sys/cdefs.h */

6
lib/ceil.c
View file

@ -1,5 +1,5 @@
/* Round towards positive infinity.
Copyright (C) 2007, 2010-2017 Free Software Foundation, Inc.
Copyright (C) 2007, 2010-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -12,7 +12,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Bruno Haible <bruno@clisp.org>, 2007. */
@ -56,7 +56,7 @@
/* MSVC with option -fp:strict refuses to compile constant initializers that
contain floating-point operations. Pacify this compiler. */
#ifdef _MSC_VER
#if defined _MSC_VER && !defined __clang__
# pragma fenv_access (off)
#endif

83
lib/cloexec.c Normal file
View file

@ -0,0 +1,83 @@
/* cloexec.c - set or clear the close-on-exec descriptor flag
Copyright (C) 1991, 2004-2006, 2009-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
The code is taken from glibc/manual/llio.texi */
#include <config.h>
#include "cloexec.h"
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
/* Set the 'FD_CLOEXEC' flag of DESC if VALUE is true,
or clear the flag if VALUE is false.
Return 0 on success, or -1 on error with 'errno' set.
Note that on MingW, this function does NOT protect DESC from being
inherited into spawned children. Instead, either use dup_cloexec
followed by closing the original DESC, or use interfaces such as
open or pipe2 that accept flags like O_CLOEXEC to create DESC
non-inheritable in the first place. */
int
set_cloexec_flag (int desc, bool value)
{
#ifdef F_SETFD
int flags = fcntl (desc, F_GETFD, 0);
if (0 <= flags)
{
int newflags = (value ? flags | FD_CLOEXEC : flags & ~FD_CLOEXEC);
if (flags == newflags
|| fcntl (desc, F_SETFD, newflags) != -1)
return 0;
}
return -1;
#else /* !F_SETFD */
/* Use dup2 to reject invalid file descriptors; the cloexec flag
will be unaffected. */
if (desc < 0)
{
errno = EBADF;
return -1;
}
if (dup2 (desc, desc) < 0)
/* errno is EBADF here. */
return -1;
/* There is nothing we can do on this kind of platform. Punt. */
return 0;
#endif /* !F_SETFD */
}
/* Duplicates a file handle FD, while marking the copy to be closed
prior to exec or spawn. Returns -1 and sets errno if FD could not
be duplicated. */
int
dup_cloexec (int fd)
{
return fcntl (fd, F_DUPFD_CLOEXEC, 0);
}

38
lib/cloexec.h Normal file
View file

@ -0,0 +1,38 @@
/* cloexec.c - set or clear the close-on-exec descriptor flag
Copyright (C) 2004, 2009-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <stdbool.h>
/* Set the 'FD_CLOEXEC' flag of DESC if VALUE is true,
or clear the flag if VALUE is false.
Return 0 on success, or -1 on error with 'errno' set.
Note that on MingW, this function does NOT protect DESC from being
inherited into spawned children. Instead, either use dup_cloexec
followed by closing the original DESC, or use interfaces such as
open or pipe2 that accept flags like O_CLOEXEC to create DESC
non-inheritable in the first place. */
int set_cloexec_flag (int desc, bool value);
/* Duplicates a file handle FD, while marking the copy to be closed
prior to exec or spawn. Returns -1 and sets errno if FD could not
be duplicated. */
int dup_cloexec (int fd);

16
lib/close.c
View file

@ -1,5 +1,5 @@
/* close replacement.
Copyright (C) 2008-2017 Free Software Foundation, Inc.
Copyright (C) 2008-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -12,7 +12,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#include <config.h>
@ -22,11 +22,14 @@
#include <errno.h>
#include "fd-hook.h"
#include "msvc-inval.h"
#if HAVE_MSVC_INVALID_PARAMETER_HANDLER
# include "msvc-inval.h"
#endif
#undef close
#if HAVE_MSVC_INVALID_PARAMETER_HANDLER
#if defined _WIN32 && !defined __CYGWIN__
# if HAVE_MSVC_INVALID_PARAMETER_HANDLER
static int
close_nothrow (int fd)
{
@ -34,7 +37,7 @@ close_nothrow (int fd)
TRY_MSVC_INVAL
{
result = close (fd);
result = _close (fd);
}
CATCH_MSVC_INVAL
{
@ -45,6 +48,9 @@ close_nothrow (int fd)
return result;
}
# else
# define close_nothrow _close
# endif
#else
# define close_nothrow close
#endif

682
lib/config.charset
View file

@ -1,682 +0,0 @@
#! /bin/sh
# Output a system dependent table of character encoding aliases.
#
# Copyright (C) 2000-2004, 2006-2017 Free Software Foundation, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License along
# with this program; if not, see <http://www.gnu.org/licenses/>.
#
# The table consists of lines of the form
# ALIAS CANONICAL
#
# ALIAS is the (system dependent) result of "nl_langinfo (CODESET)".
# ALIAS is compared in a case sensitive way.
#
# CANONICAL is the GNU canonical name for this character encoding.
# It must be an encoding supported by libiconv. Support by GNU libc is
# also desirable. CANONICAL is case insensitive. Usually an upper case
# MIME charset name is preferred.
# The current list of GNU canonical charset names is as follows.
#
# name MIME? used by which systems
# (darwin = Mac OS X, woe32 = native Windows)
#
# ASCII, ANSI_X3.4-1968 glibc solaris freebsd netbsd darwin cygwin
# ISO-8859-1 Y glibc aix hpux irix osf solaris freebsd netbsd openbsd darwin cygwin
# ISO-8859-2 Y glibc aix hpux irix osf solaris freebsd netbsd openbsd darwin cygwin
# ISO-8859-3 Y glibc solaris cygwin
# ISO-8859-4 Y osf solaris freebsd netbsd openbsd darwin
# ISO-8859-5 Y glibc aix hpux irix osf solaris freebsd netbsd openbsd darwin cygwin
# ISO-8859-6 Y glibc aix hpux solaris cygwin
# ISO-8859-7 Y glibc aix hpux irix osf solaris netbsd openbsd darwin cygwin
# ISO-8859-8 Y glibc aix hpux osf solaris cygwin
# ISO-8859-9 Y glibc aix hpux irix osf solaris darwin cygwin
# ISO-8859-13 glibc netbsd openbsd darwin cygwin
# ISO-8859-14 glibc cygwin
# ISO-8859-15 glibc aix osf solaris freebsd netbsd openbsd darwin cygwin
# KOI8-R Y glibc solaris freebsd netbsd openbsd darwin
# KOI8-U Y glibc freebsd netbsd openbsd darwin cygwin
# KOI8-T glibc
# CP437 dos
# CP775 dos
# CP850 aix osf dos
# CP852 dos
# CP855 dos
# CP856 aix
# CP857 dos
# CP861 dos
# CP862 dos
# CP864 dos
# CP865 dos
# CP866 freebsd netbsd openbsd darwin dos
# CP869 dos
# CP874 woe32 dos
# CP922 aix
# CP932 aix cygwin woe32 dos
# CP943 aix
# CP949 osf darwin woe32 dos
# CP950 woe32 dos
# CP1046 aix
# CP1124 aix
# CP1125 dos
# CP1129 aix
# CP1131 darwin
# CP1250 woe32
# CP1251 glibc solaris netbsd openbsd darwin cygwin woe32
# CP1252 aix woe32
# CP1253 woe32
# CP1254 woe32
# CP1255 glibc woe32
# CP1256 woe32
# CP1257 woe32
# GB2312 Y glibc aix hpux irix solaris freebsd netbsd darwin
# EUC-JP Y glibc aix hpux irix osf solaris freebsd netbsd darwin
# EUC-KR Y glibc aix hpux irix osf solaris freebsd netbsd darwin cygwin
# EUC-TW glibc aix hpux irix osf solaris netbsd
# BIG5 Y glibc aix hpux osf solaris freebsd netbsd darwin cygwin
# BIG5-HKSCS glibc solaris darwin
# GBK glibc aix osf solaris darwin cygwin woe32 dos
# GB18030 glibc solaris netbsd darwin
# SHIFT_JIS Y hpux osf solaris freebsd netbsd darwin
# JOHAB glibc solaris woe32
# TIS-620 glibc aix hpux osf solaris cygwin
# VISCII Y glibc
# TCVN5712-1 glibc
# ARMSCII-8 glibc darwin
# GEORGIAN-PS glibc cygwin
# PT154 glibc
# HP-ROMAN8 hpux
# HP-ARABIC8 hpux
# HP-GREEK8 hpux
# HP-HEBREW8 hpux
# HP-TURKISH8 hpux
# HP-KANA8 hpux
# DEC-KANJI osf
# DEC-HANYU osf
# UTF-8 Y glibc aix hpux osf solaris netbsd darwin cygwin
#
# Note: Names which are not marked as being a MIME name should not be used in
# Internet protocols for information interchange (mail, news, etc.).
#
# Note: ASCII and ANSI_X3.4-1968 are synonymous canonical names. Applications
# must understand both names and treat them as equivalent.
#
# The first argument passed to this file is the canonical host specification,
# CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM
# or
# CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM
host="$1"
os=`echo "$host" | sed -e 's/^[^-]*-[^-]*-\(.*\)$/\1/'`
echo "# This file contains a table of character encoding aliases,"
echo "# suitable for operating system '${os}'."
echo "# It was automatically generated from config.charset."
# List of references, updated during installation:
echo "# Packages using this file: "
case "$os" in
linux-gnulibc1*)
# Linux libc5 doesn't have nl_langinfo(CODESET); therefore
# localcharset.c falls back to using the full locale name
# from the environment variables.
echo "C ASCII"
echo "POSIX ASCII"
for l in af af_ZA ca ca_ES da da_DK de de_AT de_BE de_CH de_DE de_LU \
en en_AU en_BW en_CA en_DK en_GB en_IE en_NZ en_US en_ZA \
en_ZW es es_AR es_BO es_CL es_CO es_DO es_EC es_ES es_GT \
es_HN es_MX es_PA es_PE es_PY es_SV es_US es_UY es_VE et \
et_EE eu eu_ES fi fi_FI fo fo_FO fr fr_BE fr_CA fr_CH fr_FR \
fr_LU ga ga_IE gl gl_ES id id_ID in in_ID is is_IS it it_CH \
it_IT kl kl_GL nl nl_BE nl_NL no no_NO pt pt_BR pt_PT sv \
sv_FI sv_SE; do
echo "$l ISO-8859-1"
echo "$l.iso-8859-1 ISO-8859-1"
echo "$l.iso-8859-15 ISO-8859-15"
echo "$l.iso-8859-15@euro ISO-8859-15"
echo "$l@euro ISO-8859-15"
echo "$l.cp-437 CP437"
echo "$l.cp-850 CP850"
echo "$l.cp-1252 CP1252"
echo "$l.cp-1252@euro CP1252"
#echo "$l.atari-st ATARI-ST" # not a commonly used encoding
echo "$l.utf-8 UTF-8"
echo "$l.utf-8@euro UTF-8"
done
for l in cs cs_CZ hr hr_HR hu hu_HU pl pl_PL ro ro_RO sk sk_SK sl \
sl_SI sr sr_CS sr_YU; do
echo "$l ISO-8859-2"
echo "$l.iso-8859-2 ISO-8859-2"
echo "$l.cp-852 CP852"
echo "$l.cp-1250 CP1250"
echo "$l.utf-8 UTF-8"
done
for l in mk mk_MK ru ru_RU; do
echo "$l ISO-8859-5"
echo "$l.iso-8859-5 ISO-8859-5"
echo "$l.koi8-r KOI8-R"
echo "$l.cp-866 CP866"
echo "$l.cp-1251 CP1251"
echo "$l.utf-8 UTF-8"
done
for l in ar ar_SA; do
echo "$l ISO-8859-6"
echo "$l.iso-8859-6 ISO-8859-6"
echo "$l.cp-864 CP864"
#echo "$l.cp-868 CP868" # not a commonly used encoding
echo "$l.cp-1256 CP1256"
echo "$l.utf-8 UTF-8"
done
for l in el el_GR gr gr_GR; do
echo "$l ISO-8859-7"
echo "$l.iso-8859-7 ISO-8859-7"
echo "$l.cp-869 CP869"
echo "$l.cp-1253 CP1253"
echo "$l.cp-1253@euro CP1253"
echo "$l.utf-8 UTF-8"
echo "$l.utf-8@euro UTF-8"
done
for l in he he_IL iw iw_IL; do
echo "$l ISO-8859-8"
echo "$l.iso-8859-8 ISO-8859-8"
echo "$l.cp-862 CP862"
echo "$l.cp-1255 CP1255"
echo "$l.utf-8 UTF-8"
done
for l in tr tr_TR; do
echo "$l ISO-8859-9"
echo "$l.iso-8859-9 ISO-8859-9"
echo "$l.cp-857 CP857"
echo "$l.cp-1254 CP1254"
echo "$l.utf-8 UTF-8"
done
for l in lt lt_LT lv lv_LV; do
#echo "$l BALTIC" # not a commonly used encoding, wrong encoding name
echo "$l ISO-8859-13"
done
for l in ru_UA uk uk_UA; do
echo "$l KOI8-U"
done
for l in zh zh_CN; do
#echo "$l GB_2312-80" # not a commonly used encoding, wrong encoding name
echo "$l GB2312"
done
for l in ja ja_JP ja_JP.EUC; do
echo "$l EUC-JP"
done
for l in ko ko_KR; do
echo "$l EUC-KR"
done
for l in th th_TH; do
echo "$l TIS-620"
done
for l in fa fa_IR; do
#echo "$l ISIRI-3342" # a broken encoding
echo "$l.utf-8 UTF-8"
done
;;
linux* | *-gnu*)
# With glibc-2.1 or newer, we don't need any canonicalization,
# because glibc has iconv and both glibc and libiconv support all
# GNU canonical names directly. Therefore, the Makefile does not
# need to install the alias file at all.
# The following applies only to glibc-2.0.x and older libcs.
echo "ISO_646.IRV:1983 ASCII"
;;
aix*)
echo "ISO8859-1 ISO-8859-1"
echo "ISO8859-2 ISO-8859-2"
echo "ISO8859-5 ISO-8859-5"
echo "ISO8859-6 ISO-8859-6"
echo "ISO8859-7 ISO-8859-7"
echo "ISO8859-8 ISO-8859-8"
echo "ISO8859-9 ISO-8859-9"
echo "ISO8859-15 ISO-8859-15"
echo "IBM-850 CP850"
echo "IBM-856 CP856"
echo "IBM-921 ISO-8859-13"
echo "IBM-922 CP922"
echo "IBM-932 CP932"
echo "IBM-943 CP943"
echo "IBM-1046 CP1046"
echo "IBM-1124 CP1124"
echo "IBM-1129 CP1129"
echo "IBM-1252 CP1252"
echo "IBM-eucCN GB2312"
echo "IBM-eucJP EUC-JP"
echo "IBM-eucKR EUC-KR"
echo "IBM-eucTW EUC-TW"
echo "big5 BIG5"
echo "GBK GBK"
echo "TIS-620 TIS-620"
echo "UTF-8 UTF-8"
;;
hpux*)
echo "iso88591 ISO-8859-1"
echo "iso88592 ISO-8859-2"
echo "iso88595 ISO-8859-5"
echo "iso88596 ISO-8859-6"
echo "iso88597 ISO-8859-7"
echo "iso88598 ISO-8859-8"
echo "iso88599 ISO-8859-9"
echo "iso885915 ISO-8859-15"
echo "roman8 HP-ROMAN8"
echo "arabic8 HP-ARABIC8"
echo "greek8 HP-GREEK8"
echo "hebrew8 HP-HEBREW8"
echo "turkish8 HP-TURKISH8"
echo "kana8 HP-KANA8"
echo "tis620 TIS-620"
echo "big5 BIG5"
echo "eucJP EUC-JP"
echo "eucKR EUC-KR"
echo "eucTW EUC-TW"
echo "hp15CN GB2312"
#echo "ccdc ?" # what is this?
echo "SJIS SHIFT_JIS"
echo "utf8 UTF-8"
;;
irix*)
echo "ISO8859-1 ISO-8859-1"
echo "ISO8859-2 ISO-8859-2"
echo "ISO8859-5 ISO-8859-5"
echo "ISO8859-7 ISO-8859-7"
echo "ISO8859-9 ISO-8859-9"
echo "eucCN GB2312"
echo "eucJP EUC-JP"
echo "eucKR EUC-KR"
echo "eucTW EUC-TW"
;;
osf*)
echo "ISO8859-1 ISO-8859-1"
echo "ISO8859-2 ISO-8859-2"
echo "ISO8859-4 ISO-8859-4"
echo "ISO8859-5 ISO-8859-5"
echo "ISO8859-7 ISO-8859-7"
echo "ISO8859-8 ISO-8859-8"
echo "ISO8859-9 ISO-8859-9"
echo "ISO8859-15 ISO-8859-15"
echo "cp850 CP850"
echo "big5 BIG5"
echo "dechanyu DEC-HANYU"
echo "dechanzi GB2312"
echo "deckanji DEC-KANJI"
echo "deckorean EUC-KR"
echo "eucJP EUC-JP"
echo "eucKR EUC-KR"
echo "eucTW EUC-TW"
echo "GBK GBK"
echo "KSC5601 CP949"
echo "sdeckanji EUC-JP"
echo "SJIS SHIFT_JIS"
echo "TACTIS TIS-620"
echo "UTF-8 UTF-8"
;;
solaris*)
echo "646 ASCII"
echo "ISO8859-1 ISO-8859-1"
echo "ISO8859-2 ISO-8859-2"
echo "ISO8859-3 ISO-8859-3"
echo "ISO8859-4 ISO-8859-4"
echo "ISO8859-5 ISO-8859-5"
echo "ISO8859-6 ISO-8859-6"
echo "ISO8859-7 ISO-8859-7"
echo "ISO8859-8 ISO-8859-8"
echo "ISO8859-9 ISO-8859-9"
echo "ISO8859-15 ISO-8859-15"
echo "koi8-r KOI8-R"
echo "ansi-1251 CP1251"
echo "BIG5 BIG5"
echo "Big5-HKSCS BIG5-HKSCS"
echo "gb2312 GB2312"
echo "GBK GBK"
echo "GB18030 GB18030"
echo "cns11643 EUC-TW"
echo "5601 EUC-KR"
echo "ko_KR.johap92 JOHAB"
echo "eucJP EUC-JP"
echo "PCK SHIFT_JIS"
echo "TIS620.2533 TIS-620"
#echo "sun_eu_greek ?" # what is this?
echo "UTF-8 UTF-8"
;;
freebsd*)
# FreeBSD 4.2 doesn't have nl_langinfo(CODESET); therefore
# localcharset.c falls back to using the full locale name
# from the environment variables.
echo "C ASCII"
echo "US-ASCII ASCII"
for l in la_LN lt_LN; do
echo "$l.ASCII ASCII"
done
for l in da_DK de_AT de_CH de_DE en_AU en_CA en_GB en_US es_ES \
fi_FI fr_BE fr_CA fr_CH fr_FR is_IS it_CH it_IT la_LN \
lt_LN nl_BE nl_NL no_NO pt_PT sv_SE; do
echo "$l.ISO_8859-1 ISO-8859-1"
echo "$l.DIS_8859-15 ISO-8859-15"
done
for l in cs_CZ hr_HR hu_HU la_LN lt_LN pl_PL sl_SI; do
echo "$l.ISO_8859-2 ISO-8859-2"
done
for l in la_LN lt_LT; do
echo "$l.ISO_8859-4 ISO-8859-4"
done
for l in ru_RU ru_SU; do
echo "$l.KOI8-R KOI8-R"
echo "$l.ISO_8859-5 ISO-8859-5"
echo "$l.CP866 CP866"
done
echo "uk_UA.KOI8-U KOI8-U"
echo "zh_TW.BIG5 BIG5"
echo "zh_TW.Big5 BIG5"
echo "zh_CN.EUC GB2312"
echo "ja_JP.EUC EUC-JP"
echo "ja_JP.SJIS SHIFT_JIS"
echo "ja_JP.Shift_JIS SHIFT_JIS"
echo "ko_KR.EUC EUC-KR"
;;
netbsd*)
echo "646 ASCII"
echo "ISO8859-1 ISO-8859-1"
echo "ISO8859-2 ISO-8859-2"
echo "ISO8859-4 ISO-8859-4"
echo "ISO8859-5 ISO-8859-5"
echo "ISO8859-7 ISO-8859-7"
echo "ISO8859-13 ISO-8859-13"
echo "ISO8859-15 ISO-8859-15"
echo "eucCN GB2312"
echo "eucJP EUC-JP"
echo "eucKR EUC-KR"
echo "eucTW EUC-TW"
echo "BIG5 BIG5"
echo "SJIS SHIFT_JIS"
;;
openbsd*)
echo "646 ASCII"
echo "ISO8859-1 ISO-8859-1"
echo "ISO8859-2 ISO-8859-2"
echo "ISO8859-4 ISO-8859-4"
echo "ISO8859-5 ISO-8859-5"
echo "ISO8859-7 ISO-8859-7"
echo "ISO8859-13 ISO-8859-13"
echo "ISO8859-15 ISO-8859-15"
;;
darwin[56]*)
# Darwin 6.8 doesn't have nl_langinfo(CODESET); therefore
# localcharset.c falls back to using the full locale name
# from the environment variables.
echo "C ASCII"
for l in en_AU en_CA en_GB en_US la_LN; do
echo "$l.US-ASCII ASCII"
done
for l in da_DK de_AT de_CH de_DE en_AU en_CA en_GB en_US es_ES \
fi_FI fr_BE fr_CA fr_CH fr_FR is_IS it_CH it_IT nl_BE \
nl_NL no_NO pt_PT sv_SE; do
echo "$l ISO-8859-1"
echo "$l.ISO8859-1 ISO-8859-1"
echo "$l.ISO8859-15 ISO-8859-15"
done
for l in la_LN; do
echo "$l.ISO8859-1 ISO-8859-1"
echo "$l.ISO8859-15 ISO-8859-15"
done
for l in cs_CZ hr_HR hu_HU la_LN pl_PL sl_SI; do
echo "$l.ISO8859-2 ISO-8859-2"
done
for l in la_LN lt_LT; do
echo "$l.ISO8859-4 ISO-8859-4"
done
for l in ru_RU; do
echo "$l.KOI8-R KOI8-R"
echo "$l.ISO8859-5 ISO-8859-5"
echo "$l.CP866 CP866"
done
for l in bg_BG; do
echo "$l.CP1251 CP1251"
done
echo "uk_UA.KOI8-U KOI8-U"
echo "zh_TW.BIG5 BIG5"
echo "zh_TW.Big5 BIG5"
echo "zh_CN.EUC GB2312"
echo "ja_JP.EUC EUC-JP"
echo "ja_JP.SJIS SHIFT_JIS"
echo "ko_KR.EUC EUC-KR"
;;
darwin*)
# Darwin 7.5 has nl_langinfo(CODESET), but sometimes its value is
# useless:
# - It returns the empty string when LANG is set to a locale of the
# form ll_CC, although ll_CC/LC_CTYPE is a symlink to an UTF-8
# LC_CTYPE file.
# - The environment variables LANG, LC_CTYPE, LC_ALL are not set by
# the system; nl_langinfo(CODESET) returns "US-ASCII" in this case.
# - The documentation says:
# "... all code that calls BSD system routines should ensure
# that the const *char parameters of these routines are in UTF-8
# encoding. All BSD system functions expect their string
# parameters to be in UTF-8 encoding and nothing else."
# It also says
# "An additional caveat is that string parameters for files,
# paths, and other file-system entities must be in canonical
# UTF-8. In a canonical UTF-8 Unicode string, all decomposable
# characters are decomposed ..."
# but this is not true: You can pass non-decomposed UTF-8 strings
# to file system functions, and it is the OS which will convert
# them to decomposed UTF-8 before accessing the file system.
# - The Apple Terminal application displays UTF-8 by default.
# - However, other applications are free to use different encodings:
# - xterm uses ISO-8859-1 by default.
# - TextEdit uses MacRoman by default.
# We prefer UTF-8 over decomposed UTF-8-MAC because one should
# minimize the use of decomposed Unicode. Unfortunately, through the
# Darwin file system, decomposed UTF-8 strings are leaked into user
# space nevertheless.
# Then there are also the locales with encodings other than US-ASCII
# and UTF-8. These locales can be occasionally useful to users (e.g.
# when grepping through ISO-8859-1 encoded text files), when all their
# file names are in US-ASCII.
echo "ISO8859-1 ISO-8859-1"
echo "ISO8859-2 ISO-8859-2"
echo "ISO8859-4 ISO-8859-4"
echo "ISO8859-5 ISO-8859-5"
echo "ISO8859-7 ISO-8859-7"
echo "ISO8859-9 ISO-8859-9"
echo "ISO8859-13 ISO-8859-13"
echo "ISO8859-15 ISO-8859-15"
echo "KOI8-R KOI8-R"
echo "KOI8-U KOI8-U"
echo "CP866 CP866"
echo "CP949 CP949"
echo "CP1131 CP1131"
echo "CP1251 CP1251"
echo "eucCN GB2312"
echo "GB2312 GB2312"
echo "eucJP EUC-JP"
echo "eucKR EUC-KR"
echo "Big5 BIG5"
echo "Big5HKSCS BIG5-HKSCS"
echo "GBK GBK"
echo "GB18030 GB18030"
echo "SJIS SHIFT_JIS"
echo "ARMSCII-8 ARMSCII-8"
echo "PT154 PT154"
#echo "ISCII-DEV ?"
echo "* UTF-8"
;;
beos* | haiku*)
# BeOS and Haiku have a single locale, and it has UTF-8 encoding.
echo "* UTF-8"
;;
msdosdjgpp*)
# DJGPP 2.03 doesn't have nl_langinfo(CODESET); therefore
# localcharset.c falls back to using the full locale name
# from the environment variables.
echo "#"
echo "# The encodings given here may not all be correct."
echo "# If you find that the encoding given for your language and"
echo "# country is not the one your DOS machine actually uses, just"
echo "# correct it in this file, and send a mail to"
echo "# Juan Manuel Guerrero <juan.guerrero@gmx.de>"
echo "# and Bruno Haible <bruno@clisp.org>."
echo "#"
echo "C ASCII"
# ISO-8859-1 languages
echo "ca CP850"
echo "ca_ES CP850"
echo "da CP865" # not CP850 ??
echo "da_DK CP865" # not CP850 ??
echo "de CP850"
echo "de_AT CP850"
echo "de_CH CP850"
echo "de_DE CP850"
echo "en CP850"
echo "en_AU CP850" # not CP437 ??
echo "en_CA CP850"
echo "en_GB CP850"
echo "en_NZ CP437"
echo "en_US CP437"
echo "en_ZA CP850" # not CP437 ??
echo "es CP850"
echo "es_AR CP850"
echo "es_BO CP850"
echo "es_CL CP850"
echo "es_CO CP850"
echo "es_CR CP850"
echo "es_CU CP850"
echo "es_DO CP850"
echo "es_EC CP850"
echo "es_ES CP850"
echo "es_GT CP850"
echo "es_HN CP850"
echo "es_MX CP850"
echo "es_NI CP850"
echo "es_PA CP850"
echo "es_PY CP850"
echo "es_PE CP850"
echo "es_SV CP850"
echo "es_UY CP850"
echo "es_VE CP850"
echo "et CP850"
echo "et_EE CP850"
echo "eu CP850"
echo "eu_ES CP850"
echo "fi CP850"
echo "fi_FI CP850"
echo "fr CP850"
echo "fr_BE CP850"
echo "fr_CA CP850"
echo "fr_CH CP850"
echo "fr_FR CP850"
echo "ga CP850"
echo "ga_IE CP850"
echo "gd CP850"
echo "gd_GB CP850"
echo "gl CP850"
echo "gl_ES CP850"
echo "id CP850" # not CP437 ??
echo "id_ID CP850" # not CP437 ??
echo "is CP861" # not CP850 ??
echo "is_IS CP861" # not CP850 ??
echo "it CP850"
echo "it_CH CP850"
echo "it_IT CP850"
echo "lt CP775"
echo "lt_LT CP775"
echo "lv CP775"
echo "lv_LV CP775"
echo "nb CP865" # not CP850 ??
echo "nb_NO CP865" # not CP850 ??
echo "nl CP850"
echo "nl_BE CP850"
echo "nl_NL CP850"
echo "nn CP865" # not CP850 ??
echo "nn_NO CP865" # not CP850 ??
echo "no CP865" # not CP850 ??
echo "no_NO CP865" # not CP850 ??
echo "pt CP850"
echo "pt_BR CP850"
echo "pt_PT CP850"
echo "sv CP850"
echo "sv_SE CP850"
# ISO-8859-2 languages
echo "cs CP852"
echo "cs_CZ CP852"
echo "hr CP852"
echo "hr_HR CP852"
echo "hu CP852"
echo "hu_HU CP852"
echo "pl CP852"
echo "pl_PL CP852"
echo "ro CP852"
echo "ro_RO CP852"
echo "sk CP852"
echo "sk_SK CP852"
echo "sl CP852"
echo "sl_SI CP852"
echo "sq CP852"
echo "sq_AL CP852"
echo "sr CP852" # CP852 or CP866 or CP855 ??
echo "sr_CS CP852" # CP852 or CP866 or CP855 ??
echo "sr_YU CP852" # CP852 or CP866 or CP855 ??
# ISO-8859-3 languages
echo "mt CP850"
echo "mt_MT CP850"
# ISO-8859-5 languages
echo "be CP866"
echo "be_BE CP866"
echo "bg CP866" # not CP855 ??
echo "bg_BG CP866" # not CP855 ??
echo "mk CP866" # not CP855 ??
echo "mk_MK CP866" # not CP855 ??
echo "ru CP866"
echo "ru_RU CP866"
echo "uk CP1125"
echo "uk_UA CP1125"
# ISO-8859-6 languages
echo "ar CP864"
echo "ar_AE CP864"
echo "ar_DZ CP864"
echo "ar_EG CP864"
echo "ar_IQ CP864"
echo "ar_IR CP864"
echo "ar_JO CP864"
echo "ar_KW CP864"
echo "ar_MA CP864"
echo "ar_OM CP864"
echo "ar_QA CP864"
echo "ar_SA CP864"
echo "ar_SY CP864"
# ISO-8859-7 languages
echo "el CP869"
echo "el_GR CP869"
# ISO-8859-8 languages
echo "he CP862"
echo "he_IL CP862"
# ISO-8859-9 languages
echo "tr CP857"
echo "tr_TR CP857"
# Japanese
echo "ja CP932"
echo "ja_JP CP932"
# Chinese
echo "zh_CN GBK"
echo "zh_TW CP950" # not CP938 ??
# Korean
echo "kr CP949" # not CP934 ??
echo "kr_KR CP949" # not CP934 ??
# Thai
echo "th CP874"
echo "th_TH CP874"
# Other
echo "eo CP850"
echo "eo_EO CP850"
;;
esac

4
lib/connect.c
View file

@ -1,6 +1,6 @@
/* connect.c --- wrappers for Windows connect function
Copyright (C) 2008-2017 Free Software Foundation, Inc.
Copyright (C) 2008-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -13,7 +13,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Paolo Bonzini */

4
lib/copysign.c
View file

@ -1,5 +1,5 @@
/* Copy sign into another 'double' number.
Copyright (C) 2011-2017 Free Software Foundation, Inc.
Copyright (C) 2011-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -12,7 +12,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#include <config.h>

17
lib/dirent.in.h
View file

@ -1,5 +1,5 @@
/* A GNU-like <dirent.h>.
Copyright (C) 2006-2017 Free Software Foundation, Inc.
Copyright (C) 2006-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -12,7 +12,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#ifndef _@GUARD_PREFIX@_DIRENT_H
@ -57,10 +57,12 @@ typedef struct gl_directory DIR;
/* The __attribute__ feature is available in gcc versions 2.5 and later.
The attribute __pure__ was added in gcc 2.96. */
#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96)
# define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__))
#else
# define _GL_ATTRIBUTE_PURE /* empty */
#ifndef _GL_ATTRIBUTE_PURE
# if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96) || defined __clang__
# define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__))
# else
# define _GL_ATTRIBUTE_PURE /* empty */
# endif
#endif
/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
@ -152,7 +154,8 @@ _GL_WARN_ON_USE (closedir, "closedir is not portable - "
/* Return the file descriptor associated with the given directory stream,
or -1 if none exists. */
# if @REPLACE_DIRFD@
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
/* On kLIBC, dirfd() is a macro that does not work. Undefine it. */
# if !(defined __cplusplus && defined GNULIB_NAMESPACE) || defined dirfd
# undef dirfd
# define dirfd rpl_dirfd
# endif

4
lib/dirfd.c
View file

@ -1,6 +1,6 @@
/* dirfd.c -- return the file descriptor associated with an open DIR*
Copyright (C) 2001, 2006, 2008-2017 Free Software Foundation, Inc.
Copyright (C) 2001, 2006, 2008-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -13,7 +13,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Jim Meyering. */

4
lib/dirname-lgpl.c
View file

@ -1,6 +1,6 @@
/* dirname.c -- return all but the last element in a file name
Copyright (C) 1990, 1998, 2000-2001, 2003-2006, 2009-2017 Free Software
Copyright (C) 1990, 1998, 2000-2001, 2003-2006, 2009-2021 Free Software
Foundation, Inc.
This program is free software: you can redistribute it and/or modify
@ -14,7 +14,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#include <config.h>

15
lib/dirname.h
View file

@ -1,6 +1,6 @@
/* Take file names apart into directory and base names.
Copyright (C) 1998, 2001, 2003-2006, 2009-2017 Free Software Foundation,
Copyright (C) 1998, 2001, 2003-2006, 2009-2021 Free Software Foundation,
Inc.
This program is free software: you can redistribute it and/or modify
@ -14,36 +14,31 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#ifndef DIRNAME_H_
# define DIRNAME_H_ 1
# include <stdbool.h>
# include <stddef.h>
# include "dosname.h"
# include "filename.h"
# include "basename-lgpl.h"
# ifndef DIRECTORY_SEPARATOR
# define DIRECTORY_SEPARATOR '/'
# endif
# ifndef DOUBLE_SLASH_IS_DISTINCT_ROOT
# define DOUBLE_SLASH_IS_DISTINCT_ROOT 0
# endif
#ifdef __cplusplus
extern "C" {
#endif
# if GNULIB_DIRNAME
char *base_name (char const *file);
char *base_name (char const *file) _GL_ATTRIBUTE_MALLOC;
char *dir_name (char const *file);
# endif
char *mdir_name (char const *file);
size_t base_len (char const *file) _GL_ATTRIBUTE_PURE;
size_t dir_len (char const *file) _GL_ATTRIBUTE_PURE;
char *last_component (char const *file) _GL_ATTRIBUTE_PURE;
bool strip_trailing_slashes (char *file);

53
lib/dosname.h
View file

@ -1,53 +0,0 @@
/* File names on MS-DOS/Windows systems.
Copyright (C) 2000-2001, 2004-2006, 2009-2017 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
From Paul Eggert and Jim Meyering. */
#ifndef _DOSNAME_H
#define _DOSNAME_H
#if (defined _WIN32 || defined __WIN32__ || \
defined __MSDOS__ || defined __CYGWIN__ || \
defined __EMX__ || defined __DJGPP__)
/* This internal macro assumes ASCII, but all hosts that support drive
letters use ASCII. */
# define _IS_DRIVE_LETTER(C) (((unsigned int) (C) | ('a' - 'A')) - 'a' \
<= 'z' - 'a')
# define FILE_SYSTEM_PREFIX_LEN(Filename) \
(_IS_DRIVE_LETTER ((Filename)[0]) && (Filename)[1] == ':' ? 2 : 0)
# ifndef __CYGWIN__
# define FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE 1
# endif
# define ISSLASH(C) ((C) == '/' || (C) == '\\')
#else
# define FILE_SYSTEM_PREFIX_LEN(Filename) 0
# define ISSLASH(C) ((C) == '/')
#endif
#ifndef FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE
# define FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE 0
#endif
#if FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE
# define IS_ABSOLUTE_FILE_NAME(F) ISSLASH ((F)[FILE_SYSTEM_PREFIX_LEN (F)])
# else
# define IS_ABSOLUTE_FILE_NAME(F) \
(ISSLASH ((F)[0]) || FILE_SYSTEM_PREFIX_LEN (F) != 0)
#endif
#define IS_RELATIVE_FILE_NAME(F) (! IS_ABSOLUTE_FILE_NAME (F))
#endif /* DOSNAME_H_ */

122
lib/dup2.c
View file

@ -1,6 +1,6 @@
/* Duplicate an open file descriptor to a specified file descriptor.
Copyright (C) 1999, 2004-2007, 2009-2017 Free Software Foundation, Inc.
Copyright (C) 1999, 2004-2007, 2009-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -13,7 +13,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* written by Paul Eggert */
@ -25,20 +25,47 @@
#include <errno.h>
#include <fcntl.h>
#if HAVE_DUP2
#undef dup2
# undef dup2
# if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
#if defined _WIN32 && ! defined __CYGWIN__
/* Get declarations of the native Windows API functions. */
# define WIN32_LEAN_AND_MEAN
# include <windows.h>
# define WIN32_LEAN_AND_MEAN
# include <windows.h>
# if HAVE_MSVC_INVALID_PARAMETER_HANDLER
# include "msvc-inval.h"
# endif
/* Get _get_osfhandle. */
# if GNULIB_MSVC_NOTHROW
# include "msvc-nothrow.h"
# else
# include <io.h>
# endif
# if HAVE_MSVC_INVALID_PARAMETER_HANDLER
static int
dup2_nothrow (int fd, int desired_fd)
{
int result;
TRY_MSVC_INVAL
{
result = _dup2 (fd, desired_fd);
}
CATCH_MSVC_INVAL
{
errno = EBADF;
result = -1;
}
DONE_MSVC_INVAL;
return result;
}
# else
# define dup2_nothrow _dup2
# endif
static int
ms_windows_dup2 (int fd, int desired_fd)
@ -59,23 +86,14 @@ ms_windows_dup2 (int fd, int desired_fd)
}
/* Wine 1.0.1 return 0 when desired_fd is negative but not -1:
http://bugs.winehq.org/show_bug.cgi?id=21289 */
https://bugs.winehq.org/show_bug.cgi?id=21289 */
if (desired_fd < 0)
{
errno = EBADF;
return -1;
}
TRY_MSVC_INVAL
{
result = dup2 (fd, desired_fd);
}
CATCH_MSVC_INVAL
{
errno = EBADF;
result = -1;
}
DONE_MSVC_INVAL;
result = dup2_nothrow (fd, desired_fd);
if (result == 0)
result = desired_fd;
@ -83,11 +101,11 @@ ms_windows_dup2 (int fd, int desired_fd)
return result;
}
# define dup2 ms_windows_dup2
# define dup2 ms_windows_dup2
# elif defined __KLIBC__
#elif defined __KLIBC__
# include <InnoTekLIBC/backend.h>
# include <InnoTekLIBC/backend.h>
static int
klibc_dup2dirfd (int fd, int desired_fd)
@ -135,81 +153,37 @@ klibc_dup2 (int fd, int desired_fd)
return dupfd;
}
# define dup2 klibc_dup2
# endif
# define dup2 klibc_dup2
#endif
int
rpl_dup2 (int fd, int desired_fd)
{
int result;
# ifdef F_GETFL
#ifdef F_GETFL
/* On Linux kernels 2.6.26-2.6.29, dup2 (fd, fd) returns -EBADF.
On Cygwin 1.5.x, dup2 (1, 1) returns 0.
On Cygwin 1.7.17, dup2 (1, -1) dumps core.
On Cygwin 1.7.25, dup2 (1, 256) can dump core.
On Haiku, dup2 (fd, fd) mistakenly clears FD_CLOEXEC. */
# if HAVE_SETDTABLESIZE
# if HAVE_SETDTABLESIZE
setdtablesize (desired_fd + 1);
# endif
# endif
if (desired_fd < 0)
fd = desired_fd;
if (fd == desired_fd)
return fcntl (fd, F_GETFL) == -1 ? -1 : fd;
# endif
#endif
result = dup2 (fd, desired_fd);
/* Correct an errno value on FreeBSD 6.1 and Cygwin 1.5.x. */
if (result == -1 && errno == EMFILE)
errno = EBADF;
# if REPLACE_FCHDIR
#if REPLACE_FCHDIR
if (fd != desired_fd && result != -1)
result = _gl_register_dup (fd, result);
# endif
#endif
return result;
}
#else /* !HAVE_DUP2 */
/* On older platforms, dup2 did not exist. */
# ifndef F_DUPFD
static int
dupfd (int fd, int desired_fd)
{
int duplicated_fd = dup (fd);
if (duplicated_fd < 0 || duplicated_fd == desired_fd)
return duplicated_fd;
else
{
int r = dupfd (fd, desired_fd);
int e = errno;
close (duplicated_fd);
errno = e;
return r;
}
}
# endif
int
dup2 (int fd, int desired_fd)
{
int result = fcntl (fd, F_GETFL) < 0 ? -1 : fd;
if (result == -1 || fd == desired_fd)
return result;
close (desired_fd);
# ifdef F_DUPFD
result = fcntl (fd, F_DUPFD, desired_fd);
# if REPLACE_FCHDIR
if (0 <= result)
result = _gl_register_dup (fd, result);
# endif
# else
result = dupfd (fd, desired_fd);
# endif
if (result == -1 && (errno == EMFILE || errno == EINVAL))
errno = EBADF;
return result;
}
#endif /* !HAVE_DUP2 */

29
lib/duplocale.c
View file

@ -1,5 +1,5 @@
/* Duplicate a locale object.
Copyright (C) 2009-2017 Free Software Foundation, Inc.
Copyright (C) 2009-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -12,7 +12,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Bruno Haible <bruno@clisp.org>, 2007. */
@ -32,9 +32,11 @@ locale_t
rpl_duplocale (locale_t locale)
{
/* Work around crash in the duplocale function in glibc < 2.12.
See <http://sourceware.org/bugzilla/show_bug.cgi?id=10969>.
See <https://sourceware.org/bugzilla/show_bug.cgi?id=10969>.
Also, on AIX 7.1, duplocale(LC_GLOBAL_LOCALE) returns (locale_t)0 with
errno set to EINVAL. */
errno set to EINVAL.
Also, on NetBSD 7.0, duplocale(LC_GLOBAL_LOCALE) returns a locale that
corresponds to the C locale. */
if (locale == LC_GLOBAL_LOCALE)
{
/* Create a copy of the locale by fetching the name of each locale
@ -65,11 +67,17 @@ rpl_duplocale (locale_t locale)
, { LC_IDENTIFICATION, LC_IDENTIFICATION_MASK }
#endif
};
const char *base_name;
char base_name[SETLOCALE_NULL_MAX];
int err;
locale_t base_copy;
unsigned int i;
base_name = setlocale (LC_CTYPE, NULL);
err = setlocale_null_r (LC_CTYPE, base_name, sizeof (base_name));
if (err)
{
errno = err;
return NULL;
}
base_copy = newlocale (LC_ALL_MASK, base_name, NULL);
if (base_copy == NULL)
return NULL;
@ -78,7 +86,14 @@ rpl_duplocale (locale_t locale)
{
int category = categories[i].cat;
int category_mask = categories[i].mask;
const char *name = setlocale (category, NULL);
char name[SETLOCALE_NULL_MAX];
err = setlocale_null_r (category, name, sizeof (name));
if (err)
{
errno = err;
return NULL;
}
if (strcmp (name, base_name) != 0)
{
locale_t copy = newlocale (category_mask, name, base_copy);

31
lib/dynarray.h Normal file
View file

@ -0,0 +1,31 @@
/* Type-safe arrays which grow dynamically.
Copyright 2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Paul Eggert, 2021. */
#ifndef _GL_DYNARRAY_H
#define _GL_DYNARRAY_H
#include <libc-config.h>
#define __libc_dynarray_at_failure gl_dynarray_at_failure
#define __libc_dynarray_emplace_enlarge gl_dynarray_emplace_enlarge
#define __libc_dynarray_finalize gl_dynarray_finalize
#define __libc_dynarray_resize_clear gl_dynarray_resize_clear
#define __libc_dynarray_resize gl_dynarray_resize
#include <malloc/dynarray.h>
#endif /* _GL_DYNARRAY_H */

83
lib/eloop-threshold.h Normal file
View file

@ -0,0 +1,83 @@
/* Threshold at which to diagnose ELOOP. Generic version.
Copyright (C) 2012-2021 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#ifndef _ELOOP_THRESHOLD_H
#define _ELOOP_THRESHOLD_H 1
#include <limits.h>
#ifdef _LIBC
# include <sys/param.h>
# define _GL_ATTRIBUTE_CONST __attribute__ ((const))
#else
# include <unistd.h>
# include "minmax.h"
# define __sysconf sysconf
# if (!defined SYMLOOP_MAX \
&& ! (defined _SC_SYMLOOP_MAX && defined _POSIX_SYMLOOP_MAX))
# define SYMLOOP_MAX 8
# endif
#endif
/* POSIX specifies SYMLOOP_MAX as the "Maximum number of symbolic
links that can be reliably traversed in the resolution of a
pathname in the absence of a loop." This makes it a minimum that
we should certainly accept. But it leaves open the possibility
that more might sometimes work--just not "reliably".
For example, Linux implements a complex policy whereby there is a
small limit on the number of direct symlink traversals (a symlink
to a symlink to a symlink), but larger limit on the total number of
symlink traversals overall. Hence the SYMLOOP_MAX number should be
the small one, but the limit library functions enforce on users
should be the larger one.
So, we use the larger of the reported SYMLOOP_MAX (if any) and our
own constant MIN_ELOOP_THRESHOLD, below. This constant should be
large enough that it never rules out a file name and directory tree
that the underlying system (i.e. calls to 'open' et al) would
resolve successfully. It should be small enough that actual loops
are detected without a huge number of iterations. */
#ifndef MIN_ELOOP_THRESHOLD
# define MIN_ELOOP_THRESHOLD 40
#endif
/* Return the maximum number of symlink traversals to permit
before diagnosing ELOOP. */
static inline unsigned int _GL_ATTRIBUTE_CONST
__eloop_threshold (void)
{
#ifdef SYMLOOP_MAX
const int symloop_max = SYMLOOP_MAX;
#else
/* The function is marked 'const' even though we use memory and
call a function, because sysconf is required to return the
same value in every call and so it must always be safe to
call __eloop_threshold exactly once and reuse the value. */
static long int sysconf_symloop_max;
if (sysconf_symloop_max == 0)
sysconf_symloop_max = __sysconf (_SC_SYMLOOP_MAX);
const unsigned int symloop_max = (sysconf_symloop_max <= 0
? _POSIX_SYMLOOP_MAX
: sysconf_symloop_max);
#endif
return MAX (symloop_max, MIN_ELOOP_THRESHOLD);
}
#endif /* eloop-threshold.h */

8
lib/errno.in.h
View file

@ -1,6 +1,6 @@
/* A POSIX-like <errno.h>.
Copyright (C) 2008-2017 Free Software Foundation, Inc.
Copyright (C) 2008-2021 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -13,7 +13,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>. */
along with this program; if not, see <https://www.gnu.org/licenses/>. */
#ifndef _@GUARD_PREFIX@_ERRNO_H
@ -30,7 +30,7 @@
/* On native Windows platforms, many macros are not defined. */
# if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
# if defined _WIN32 && ! defined __CYGWIN__
/* These are the same values as defined by MSVC 10, for interoperability. */
@ -248,7 +248,7 @@
interoperability. */
# define EOWNERDEAD 58
# define ENOTRECOVERABLE 59
# elif (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
# elif defined _WIN32 && ! defined __CYGWIN__
/* We have a conflict here: pthreads-win32 defines these values
differently than MSVC 10. It's hairy to decide which one to use. */
# if defined __MINGW32__ && !defined USE_WINDOWS_THREADS

629
lib/fcntl.c Normal file
View file

@ -0,0 +1,629 @@
/* Provide file descriptor control.
Copyright (C) 2009-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Eric Blake <ebb9@byu.net>. */
#include <config.h>
/* Specification. */
#include <fcntl.h>
#include <errno.h>
#include <limits.h>
#include <stdarg.h>
#include <stdlib.h>
#include <unistd.h>
#ifdef __KLIBC__
# define INCL_DOS
# include <os2.h>
#endif
#if defined _WIN32 && ! defined __CYGWIN__
/* Get declarations of the native Windows API functions. */
# define WIN32_LEAN_AND_MEAN
# include <windows.h>
/* Get _get_osfhandle. */
# if GNULIB_MSVC_NOTHROW
# include "msvc-nothrow.h"
# else
# include <io.h>
# endif
/* Upper bound on getdtablesize(). See lib/getdtablesize.c. */
# define OPEN_MAX_MAX 0x10000
/* Duplicate OLDFD into the first available slot of at least NEWFD,
which must be positive, with FLAGS determining whether the duplicate
will be inheritable. */
static int
dupfd (int oldfd, int newfd, int flags)
{
/* Mingw has no way to create an arbitrary fd. Iterate until all
file descriptors less than newfd are filled up. */
HANDLE curr_process = GetCurrentProcess ();
HANDLE old_handle = (HANDLE) _get_osfhandle (oldfd);
unsigned char fds_to_close[OPEN_MAX_MAX / CHAR_BIT];
unsigned int fds_to_close_bound = 0;
int result;
BOOL inherit = flags & O_CLOEXEC ? FALSE : TRUE;
int mode;
if (newfd < 0 || getdtablesize () <= newfd)
{
errno = EINVAL;
return -1;
}
if (old_handle == INVALID_HANDLE_VALUE
|| (mode = _setmode (oldfd, O_BINARY)) == -1)
{
/* oldfd is not open, or is an unassigned standard file
descriptor. */
errno = EBADF;
return -1;
}
_setmode (oldfd, mode);
flags |= mode;
for (;;)
{
HANDLE new_handle;
int duplicated_fd;
unsigned int index;
if (!DuplicateHandle (curr_process, /* SourceProcessHandle */
old_handle, /* SourceHandle */
curr_process, /* TargetProcessHandle */
(PHANDLE) &new_handle, /* TargetHandle */
(DWORD) 0, /* DesiredAccess */
inherit, /* InheritHandle */
DUPLICATE_SAME_ACCESS)) /* Options */
{
switch (GetLastError ())
{
case ERROR_TOO_MANY_OPEN_FILES:
errno = EMFILE;
break;
case ERROR_INVALID_HANDLE:
case ERROR_INVALID_TARGET_HANDLE:
case ERROR_DIRECT_ACCESS_HANDLE:
errno = EBADF;
break;
case ERROR_INVALID_PARAMETER:
case ERROR_INVALID_FUNCTION:
case ERROR_INVALID_ACCESS:
errno = EINVAL;
break;
default:
errno = EACCES;
break;
}
result = -1;
break;
}
duplicated_fd = _open_osfhandle ((intptr_t) new_handle, flags);
if (duplicated_fd < 0)
{
CloseHandle (new_handle);
result = -1;
break;
}
if (newfd <= duplicated_fd)
{
result = duplicated_fd;
break;
}
/* Set the bit duplicated_fd in fds_to_close[]. */
index = (unsigned int) duplicated_fd / CHAR_BIT;
if (fds_to_close_bound <= index)
{
if (sizeof fds_to_close <= index)
/* Need to increase OPEN_MAX_MAX. */
abort ();
memset (fds_to_close + fds_to_close_bound, '\0',
index + 1 - fds_to_close_bound);
fds_to_close_bound = index + 1;
}
fds_to_close[index] |= 1 << ((unsigned int) duplicated_fd % CHAR_BIT);
}
/* Close the previous fds that turned out to be too small. */
{
int saved_errno = errno;
unsigned int duplicated_fd;
for (duplicated_fd = 0;
duplicated_fd < fds_to_close_bound * CHAR_BIT;
duplicated_fd++)
if ((fds_to_close[duplicated_fd / CHAR_BIT]
>> (duplicated_fd % CHAR_BIT))
& 1)
close (duplicated_fd);
errno = saved_errno;
}
# if REPLACE_FCHDIR
if (0 <= result)
result = _gl_register_dup (oldfd, result);
# endif
return result;
}
#endif /* W32 */
/* Forward declarations, because we '#undef fcntl' in the middle of this
compilation unit. */
/* Our implementation of fcntl (fd, F_DUPFD, target). */
static int rpl_fcntl_DUPFD (int fd, int target);
/* Our implementation of fcntl (fd, F_DUPFD_CLOEXEC, target). */
static int rpl_fcntl_DUPFD_CLOEXEC (int fd, int target);
#ifdef __KLIBC__
/* Adds support for fcntl on directories. */
static int klibc_fcntl (int fd, int action, /* arg */...);
#endif
/* Perform the specified ACTION on the file descriptor FD, possibly
using the argument ARG further described below. This replacement
handles the following actions, and forwards all others on to the
native fcntl. An unrecognized ACTION returns -1 with errno set to
EINVAL.
F_DUPFD - duplicate FD, with int ARG being the minimum target fd.
If successful, return the duplicate, which will be inheritable;
otherwise return -1 and set errno.
F_DUPFD_CLOEXEC - duplicate FD, with int ARG being the minimum
target fd. If successful, return the duplicate, which will not be
inheritable; otherwise return -1 and set errno.
F_GETFD - ARG need not be present. If successful, return a
non-negative value containing the descriptor flags of FD (only
FD_CLOEXEC is portable, but other flags may be present); otherwise
return -1 and set errno. */
int
fcntl (int fd, int action, /* arg */...)
#undef fcntl
#ifdef __KLIBC__
# define fcntl klibc_fcntl
#endif
{
va_list arg;
int result = -1;
va_start (arg, action);
switch (action)
{
case F_DUPFD:
{
int target = va_arg (arg, int);
result = rpl_fcntl_DUPFD (fd, target);
break;
}
case F_DUPFD_CLOEXEC:
{
int target = va_arg (arg, int);
result = rpl_fcntl_DUPFD_CLOEXEC (fd, target);
break;
}
#if !HAVE_FCNTL
case F_GETFD:
{
# if defined _WIN32 && ! defined __CYGWIN__
HANDLE handle = (HANDLE) _get_osfhandle (fd);
DWORD flags;
if (handle == INVALID_HANDLE_VALUE
|| GetHandleInformation (handle, &flags) == 0)
errno = EBADF;
else
result = (flags & HANDLE_FLAG_INHERIT) ? 0 : FD_CLOEXEC;
# else /* !W32 */
/* Use dup2 to reject invalid file descriptors. No way to
access this information, so punt. */
if (0 <= dup2 (fd, fd))
result = 0;
# endif /* !W32 */
break;
} /* F_GETFD */
#endif /* !HAVE_FCNTL */
/* Implementing F_SETFD on mingw is not trivial - there is no
API for changing the O_NOINHERIT bit on an fd, and merely
changing the HANDLE_FLAG_INHERIT bit on the underlying handle
can lead to odd state. It may be possible by duplicating the
handle, using _open_osfhandle with the right flags, then
using dup2 to move the duplicate onto the original, but that
is not supported for now. */
default:
{
#if HAVE_FCNTL
switch (action)
{
#ifdef F_BARRIERFSYNC /* macOS */
case F_BARRIERFSYNC:
#endif
#ifdef F_CHKCLEAN /* macOS */
case F_CHKCLEAN:
#endif
#ifdef F_CLOSEM /* NetBSD, HP-UX */
case F_CLOSEM:
#endif
#ifdef F_FLUSH_DATA /* macOS */
case F_FLUSH_DATA:
#endif
#ifdef F_FREEZE_FS /* macOS */
case F_FREEZE_FS:
#endif
#ifdef F_FULLFSYNC /* macOS */
case F_FULLFSYNC:
#endif
#ifdef F_GETCONFINED /* macOS */
case F_GETCONFINED:
#endif
#ifdef F_GETDEFAULTPROTLEVEL /* macOS */
case F_GETDEFAULTPROTLEVEL:
#endif
#ifdef F_GETFD /* POSIX */
case F_GETFD:
#endif
#ifdef F_GETFL /* POSIX */
case F_GETFL:
#endif
#ifdef F_GETLEASE /* Linux */
case F_GETLEASE:
#endif
#ifdef F_GETNOSIGPIPE /* macOS */
case F_GETNOSIGPIPE:
#endif
#ifdef F_GETOWN /* POSIX */
case F_GETOWN:
#endif
#ifdef F_GETPIPE_SZ /* Linux */
case F_GETPIPE_SZ:
#endif
#ifdef F_GETPROTECTIONCLASS /* macOS */
case F_GETPROTECTIONCLASS:
#endif
#ifdef F_GETPROTECTIONLEVEL /* macOS */
case F_GETPROTECTIONLEVEL:
#endif
#ifdef F_GET_SEALS /* Linux */
case F_GET_SEALS:
#endif
#ifdef F_GETSIG /* Linux */
case F_GETSIG:
#endif
#ifdef F_MAXFD /* NetBSD */
case F_MAXFD:
#endif
#ifdef F_RECYCLE /* macOS */
case F_RECYCLE:
#endif
#ifdef F_SETFIFOENH /* HP-UX */
case F_SETFIFOENH:
#endif
#ifdef F_THAW_FS /* macOS */
case F_THAW_FS:
#endif
/* These actions take no argument. */
result = fcntl (fd, action);
break;
#ifdef F_ADD_SEALS /* Linux */
case F_ADD_SEALS:
#endif
#ifdef F_BADFD /* Solaris */
case F_BADFD:
#endif
#ifdef F_CHECK_OPENEVT /* macOS */
case F_CHECK_OPENEVT:
#endif
#ifdef F_DUP2FD /* FreeBSD, AIX, Solaris */
case F_DUP2FD:
#endif
#ifdef F_DUP2FD_CLOEXEC /* FreeBSD, Solaris */
case F_DUP2FD_CLOEXEC:
#endif
#ifdef F_DUP2FD_CLOFORK /* Solaris */
case F_DUP2FD_CLOFORK:
#endif
#ifdef F_DUPFD /* POSIX */
case F_DUPFD:
#endif
#ifdef F_DUPFD_CLOEXEC /* POSIX */
case F_DUPFD_CLOEXEC:
#endif
#ifdef F_DUPFD_CLOFORK /* Solaris */
case F_DUPFD_CLOFORK:
#endif
#ifdef F_GETXFL /* Solaris */
case F_GETXFL:
#endif
#ifdef F_GLOBAL_NOCACHE /* macOS */
case F_GLOBAL_NOCACHE:
#endif
#ifdef F_MAKECOMPRESSED /* macOS */
case F_MAKECOMPRESSED:
#endif
#ifdef F_MOVEDATAEXTENTS /* macOS */
case F_MOVEDATAEXTENTS:
#endif
#ifdef F_NOCACHE /* macOS */
case F_NOCACHE:
#endif
#ifdef F_NODIRECT /* macOS */
case F_NODIRECT:
#endif
#ifdef F_NOTIFY /* Linux */
case F_NOTIFY:
#endif
#ifdef F_OPLKACK /* IRIX */
case F_OPLKACK:
#endif
#ifdef F_OPLKREG /* IRIX */
case F_OPLKREG:
#endif
#ifdef F_RDAHEAD /* macOS */
case F_RDAHEAD:
#endif
#ifdef F_SETBACKINGSTORE /* macOS */
case F_SETBACKINGSTORE:
#endif
#ifdef F_SETCONFINED /* macOS */
case F_SETCONFINED:
#endif
#ifdef F_SETFD /* POSIX */
case F_SETFD:
#endif
#ifdef F_SETFL /* POSIX */
case F_SETFL:
#endif
#ifdef F_SETLEASE /* Linux */
case F_SETLEASE:
#endif
#ifdef F_SETNOSIGPIPE /* macOS */
case F_SETNOSIGPIPE:
#endif
#ifdef F_SETOWN /* POSIX */
case F_SETOWN:
#endif
#ifdef F_SETPIPE_SZ /* Linux */
case F_SETPIPE_SZ:
#endif
#ifdef F_SETPROTECTIONCLASS /* macOS */
case F_SETPROTECTIONCLASS:
#endif
#ifdef F_SETSIG /* Linux */
case F_SETSIG:
#endif
#ifdef F_SINGLE_WRITER /* macOS */
case F_SINGLE_WRITER:
#endif
/* These actions take an 'int' argument. */
{
int x = va_arg (arg, int);
result = fcntl (fd, action, x);
}
break;
default:
/* Other actions take a pointer argument. */
{
void *p = va_arg (arg, void *);
result = fcntl (fd, action, p);
}
break;
}
#else
errno = EINVAL;
#endif
break;
}
}
va_end (arg);
return result;
}
static int
rpl_fcntl_DUPFD (int fd, int target)
{
int result;
#if !HAVE_FCNTL
result = dupfd (fd, target, 0);
#elif FCNTL_DUPFD_BUGGY || REPLACE_FCHDIR
/* Detect invalid target; needed for cygwin 1.5.x. */
if (target < 0 || getdtablesize () <= target)
{
result = -1;
errno = EINVAL;
}
else
{
/* Haiku alpha 2 loses fd flags on original. */
int flags = fcntl (fd, F_GETFD);
if (flags < 0)
result = -1;
else
{
result = fcntl (fd, F_DUPFD, target);
if (0 <= result && fcntl (fd, F_SETFD, flags) == -1)
{
int saved_errno = errno;
close (result);
result = -1;
errno = saved_errno;
}
# if REPLACE_FCHDIR
if (0 <= result)
result = _gl_register_dup (fd, result);
# endif
}
}
#else
result = fcntl (fd, F_DUPFD, target);
#endif
return result;
}
static int
rpl_fcntl_DUPFD_CLOEXEC (int fd, int target)
{
int result;
#if !HAVE_FCNTL
result = dupfd (fd, target, O_CLOEXEC);
#else /* HAVE_FCNTL */
# if defined __NetBSD__ || defined __HAIKU__
/* On NetBSD 9.0, the system fcntl (fd, F_DUPFD_CLOEXEC, target)
has only the same effect as fcntl (fd, F_DUPFD, target). */
/* On Haiku, the system fcntl (fd, F_DUPFD_CLOEXEC, target) sets
the FD_CLOEXEC flag on fd, not on target. Therefore avoid the
system fcntl in this case. */
# define have_dupfd_cloexec -1
# else
/* Try the system call first, if the headers claim it exists
(that is, if GNULIB_defined_F_DUPFD_CLOEXEC is 0), since we
may be running with a glibc that has the macro but with an
older kernel that does not support it. Cache the
information on whether the system call really works, but
avoid caching failure if the corresponding F_DUPFD fails
for any reason. 0 = unknown, 1 = yes, -1 = no. */
static int have_dupfd_cloexec = GNULIB_defined_F_DUPFD_CLOEXEC ? -1 : 0;
if (0 <= have_dupfd_cloexec)
{
result = fcntl (fd, F_DUPFD_CLOEXEC, target);
if (0 <= result || errno != EINVAL)
{
have_dupfd_cloexec = 1;
# if REPLACE_FCHDIR
if (0 <= result)
result = _gl_register_dup (fd, result);
# endif
}
else
{
result = rpl_fcntl_DUPFD (fd, target);
if (result >= 0)
have_dupfd_cloexec = -1;
}
}
else
# endif
result = rpl_fcntl_DUPFD (fd, target);
if (0 <= result && have_dupfd_cloexec == -1)
{
int flags = fcntl (result, F_GETFD);
if (flags < 0 || fcntl (result, F_SETFD, flags | FD_CLOEXEC) == -1)
{
int saved_errno = errno;
close (result);
errno = saved_errno;
result = -1;
}
}
#endif /* HAVE_FCNTL */
return result;
}
#undef fcntl
#ifdef __KLIBC__
static int
klibc_fcntl (int fd, int action, /* arg */...)
{
va_list arg_ptr;
int arg;
struct stat sbuf;
int result;
va_start (arg_ptr, action);
arg = va_arg (arg_ptr, int);
result = fcntl (fd, action, arg);
/* EPERM for F_DUPFD, ENOTSUP for others */
if (result == -1 && (errno == EPERM || errno == ENOTSUP)
&& !fstat (fd, &sbuf) && S_ISDIR (sbuf.st_mode))
{
ULONG ulMode;
switch (action)
{
case F_DUPFD:
/* Find available fd */
while (fcntl (arg, F_GETFL) != -1 || errno != EBADF)
arg++;
result = dup2 (fd, arg);
break;
/* Using underlying APIs is right ? */
case F_GETFD:
if (DosQueryFHState (fd, &ulMode))
break;
result = (ulMode & OPEN_FLAGS_NOINHERIT) ? FD_CLOEXEC : 0;
break;
case F_SETFD:
if (arg & ~FD_CLOEXEC)
break;
if (DosQueryFHState (fd, &ulMode))
break;
if (arg & FD_CLOEXEC)
ulMode |= OPEN_FLAGS_NOINHERIT;
else
ulMode &= ~OPEN_FLAGS_NOINHERIT;
/* Filter supported flags. */
ulMode &= (OPEN_FLAGS_WRITE_THROUGH | OPEN_FLAGS_FAIL_ON_ERROR
| OPEN_FLAGS_NO_CACHE | OPEN_FLAGS_NOINHERIT);
if (DosSetFHState (fd, ulMode))
break;
result = 0;
break;
case F_GETFL:
result = 0;
break;
case F_SETFL:
if (arg != 0)
break;
result = 0;
break;
default:
errno = EINVAL;
break;
}
}
va_end (arg_ptr);
return result;
}
#endif

96
lib/fcntl.in.h
View file

@ -1,6 +1,6 @@
/* Like <fcntl.h>, but with non-working flags defined to 0.
Copyright (C) 2006-2017 Free Software Foundation, Inc.
Copyright (C) 2006-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -13,7 +13,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* written by Paul Eggert */
@ -39,6 +39,12 @@
#endif
#@INCLUDE_NEXT@ @NEXT_FCNTL_H@
/* Native Windows platforms declare open(), creat() in <io.h>. */
#if (@GNULIB_CREAT@ || @GNULIB_OPEN@ || defined GNULIB_POSIXCHECK) \
&& (defined _WIN32 && ! defined __CYGWIN__)
# include <io.h>
#endif
#else
/* Normal invocation convention. */
@ -59,6 +65,12 @@
/* The include_next requires a split double-inclusion guard. */
#@INCLUDE_NEXT@ @NEXT_FCNTL_H@
/* Native Windows platforms declare open(), creat() in <io.h>. */
#if (@GNULIB_CREAT@ || @GNULIB_OPEN@ || defined GNULIB_POSIXCHECK) \
&& (defined _WIN32 && ! defined __CYGWIN__)
# include <io.h>
#endif
#ifndef _@GUARD_PREFIX@_FCNTL_H
#define _@GUARD_PREFIX@_FCNTL_H
@ -66,12 +78,6 @@
# include <unistd.h>
#endif
/* Native Windows platforms declare open(), creat() in <io.h>. */
#if (@GNULIB_OPEN@ || defined GNULIB_POSIXCHECK) \
&& ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)
# include <io.h>
#endif
/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
@ -82,6 +88,47 @@
/* Declare overridden functions. */
#if @GNULIB_CREAT@
# if @REPLACE_CREAT@
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
# undef creat
# define creat rpl_creat
# endif
_GL_FUNCDECL_RPL (creat, int, (const char *filename, mode_t mode)
_GL_ARG_NONNULL ((1)));
_GL_CXXALIAS_RPL (creat, int, (const char *filename, mode_t mode));
# elif defined _WIN32 && !defined __CYGWIN__
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
# undef creat
# define creat _creat
# endif
_GL_CXXALIAS_MDA (creat, int, (const char *filename, mode_t mode));
# else
_GL_CXXALIAS_SYS (creat, int, (const char *filename, mode_t mode));
# endif
_GL_CXXALIASWARN (creat);
#elif defined GNULIB_POSIXCHECK
# undef creat
/* Assume creat is always declared. */
_GL_WARN_ON_USE (creat, "creat is not always POSIX compliant - "
"use gnulib module creat for portability");
#elif @GNULIB_MDA_CREAT@
/* On native Windows, map 'creat' to '_creat', so that -loldnames is not
required. In C++ with GNULIB_NAMESPACE, avoid differences between
platforms by defining GNULIB_NAMESPACE::creat always. */
# if defined _WIN32 && !defined __CYGWIN__
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
# undef creat
# define creat _creat
# endif
/* Need to cast, because in mingw the last argument is 'int mode'. */
_GL_CXXALIAS_MDA_CAST (creat, int, (const char *filename, mode_t mode));
# else
_GL_CXXALIAS_SYS (creat, int, (const char *filename, mode_t mode));
# endif
_GL_CXXALIASWARN (creat);
#endif
#if @GNULIB_FCNTL@
# if @REPLACE_FCNTL@
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
@ -90,9 +137,15 @@
# endif
_GL_FUNCDECL_RPL (fcntl, int, (int fd, int action, ...));
_GL_CXXALIAS_RPL (fcntl, int, (int fd, int action, ...));
# if !GNULIB_defined_rpl_fcntl
# define GNULIB_defined_rpl_fcntl 1
# endif
# else
# if !@HAVE_FCNTL@
_GL_FUNCDECL_SYS (fcntl, int, (int fd, int action, ...));
# if !GNULIB_defined_fcntl
# define GNULIB_defined_fcntl 1
# endif
# endif
_GL_CXXALIAS_SYS (fcntl, int, (int fd, int action, ...));
# endif
@ -114,6 +167,12 @@ _GL_WARN_ON_USE (fcntl, "fcntl is not always POSIX compliant - "
_GL_FUNCDECL_RPL (open, int, (const char *filename, int flags, ...)
_GL_ARG_NONNULL ((1)));
_GL_CXXALIAS_RPL (open, int, (const char *filename, int flags, ...));
# elif defined _WIN32 && !defined __CYGWIN__
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
# undef open
# define open _open
# endif
_GL_CXXALIAS_MDA (open, int, (const char *filename, int flags, ...));
# else
_GL_CXXALIAS_SYS (open, int, (const char *filename, int flags, ...));
# endif
@ -127,6 +186,22 @@ _GL_CXXALIASWARN (open);
/* Assume open is always declared. */
_GL_WARN_ON_USE (open, "open is not always POSIX compliant - "
"use gnulib module open for portability");
#elif @GNULIB_MDA_OPEN@
/* On native Windows, map 'open' to '_open', so that -loldnames is not
required. In C++ with GNULIB_NAMESPACE, avoid differences between
platforms by defining GNULIB_NAMESPACE::open always. */
# if defined _WIN32 && !defined __CYGWIN__
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
# undef open
# define open _open
# endif
_GL_CXXALIAS_MDA (open, int, (const char *filename, int flags, ...));
# else
_GL_CXXALIAS_SYS (open, int, (const char *filename, int flags, ...));
# endif
# if !defined __hpux
_GL_CXXALIASWARN (open);
# endif
#endif
#if @GNULIB_OPENAT@
@ -213,7 +288,10 @@ _GL_WARN_ON_USE (openat, "openat is not portable - "
#endif
#ifndef O_CLOEXEC
# define O_CLOEXEC 0
# define O_CLOEXEC 0x40000000 /* Try to not collide with system O_* flags. */
# define GNULIB_defined_O_CLOEXEC 1
#else
# define GNULIB_defined_O_CLOEXEC 0
#endif
#ifndef O_DIRECT

6
lib/fd-hook.c
View file

@ -1,5 +1,5 @@
/* Hook for making making file descriptor functions close(), ioctl() extensible.
Copyright (C) 2009-2017 Free Software Foundation, Inc.
/* Hook for making file descriptor functions close(), ioctl() extensible.
Copyright (C) 2009-2021 Free Software Foundation, Inc.
Written by Bruno Haible <bruno@clisp.org>, 2009.
This program is free software: you can redistribute it and/or modify it
@ -13,7 +13,7 @@
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#include <config.h>

6
lib/fd-hook.h
View file

@ -1,5 +1,5 @@
/* Hook for making making file descriptor functions close(), ioctl() extensible.
Copyright (C) 2009-2017 Free Software Foundation, Inc.
/* Hook for making file descriptor functions close(), ioctl() extensible.
Copyright (C) 2009-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published
@ -12,7 +12,7 @@
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#ifndef FD_HOOK_H

112
lib/filename.h Normal file
View file

@ -0,0 +1,112 @@
/* Basic filename support macros.
Copyright (C) 2001-2004, 2007-2021 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
/* From Paul Eggert and Jim Meyering. */
#ifndef _FILENAME_H
#define _FILENAME_H
#include <string.h>
#ifdef __cplusplus
extern "C" {
#endif
/* Filename support.
ISSLASH(C) tests whether C is a directory separator
character.
HAS_DEVICE(Filename) tests whether Filename contains a device
specification.
FILE_SYSTEM_PREFIX_LEN(Filename) length of the device specification
at the beginning of Filename,
index of the part consisting of
alternating components and slashes.
FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE
1 when a non-empty device specification
can be followed by an empty or relative
part,
0 when a non-empty device specification
must be followed by a slash,
0 when device specification don't exist.
IS_ABSOLUTE_FILE_NAME(Filename)
tests whether Filename is independent of
any notion of "current directory".
IS_RELATIVE_FILE_NAME(Filename)
tests whether Filename may be concatenated
to a directory filename.
Note: On native Windows, OS/2, DOS, "c:" is neither an absolute nor a
relative file name!
IS_FILE_NAME_WITH_DIR(Filename) tests whether Filename contains a device
or directory specification.
*/
#if defined _WIN32 || defined __CYGWIN__ \
|| defined __EMX__ || defined __MSDOS__ || defined __DJGPP__
/* Native Windows, Cygwin, OS/2, DOS */
# define ISSLASH(C) ((C) == '/' || (C) == '\\')
/* Internal macro: Tests whether a character is a drive letter. */
# define _IS_DRIVE_LETTER(C) \
(((C) >= 'A' && (C) <= 'Z') || ((C) >= 'a' && (C) <= 'z'))
/* Help the compiler optimizing it. This assumes ASCII. */
# undef _IS_DRIVE_LETTER
# define _IS_DRIVE_LETTER(C) \
(((unsigned int) (C) | ('a' - 'A')) - 'a' <= 'z' - 'a')
# define HAS_DEVICE(Filename) \
(_IS_DRIVE_LETTER ((Filename)[0]) && (Filename)[1] == ':')
# define FILE_SYSTEM_PREFIX_LEN(Filename) (HAS_DEVICE (Filename) ? 2 : 0)
# ifdef __CYGWIN__
# define FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE 0
# else
/* On native Windows, OS/2, DOS, the system has the notion of a
"current directory" on each drive. */
# define FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE 1
# endif
# if FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE
# define IS_ABSOLUTE_FILE_NAME(Filename) \
ISSLASH ((Filename)[FILE_SYSTEM_PREFIX_LEN (Filename)])
# else
# define IS_ABSOLUTE_FILE_NAME(Filename) \
(ISSLASH ((Filename)[0]) || HAS_DEVICE (Filename))
# endif
# define IS_RELATIVE_FILE_NAME(Filename) \
(! (ISSLASH ((Filename)[0]) || HAS_DEVICE (Filename)))
# define IS_FILE_NAME_WITH_DIR(Filename) \
(strchr ((Filename), '/') != NULL || strchr ((Filename), '\\') != NULL \
|| HAS_DEVICE (Filename))
#else
/* Unix */
# define ISSLASH(C) ((C) == '/')
# define HAS_DEVICE(Filename) ((void) (Filename), 0)
# define FILE_SYSTEM_PREFIX_LEN(Filename) ((void) (Filename), 0)
# define FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE 0
# define IS_ABSOLUTE_FILE_NAME(Filename) ISSLASH ((Filename)[0])
# define IS_RELATIVE_FILE_NAME(Filename) (! ISSLASH ((Filename)[0]))
# define IS_FILE_NAME_WITH_DIR(Filename) (strchr ((Filename), '/') != NULL)
#endif
/* Deprecated macros. For backward compatibility with old users of the
'filename' module. */
#define IS_ABSOLUTE_PATH IS_ABSOLUTE_FILE_NAME
#define IS_PATH_WITH_DIR IS_FILE_NAME_WITH_DIR
#ifdef __cplusplus
}
#endif
#endif /* _FILENAME_H */

48
lib/flexmember.h
View file

@ -1,19 +1,22 @@
/* Sizes of structs with flexible array members.
Copyright 2016-2017 Free Software Foundation, Inc.
Copyright 2016-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This file is part of the GNU C Library.
This program is distributed in the hope that it will be useful,
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>.
Written by Paul Eggert. */
@ -30,11 +33,26 @@
# define FLEXALIGNOF(type) _Alignof (type)
#endif
/* Upper bound on the size of a struct of type TYPE with a flexible
array member named MEMBER that is followed by N bytes of other data.
This is not simply sizeof (TYPE) + N, since it may require
alignment on unusually picky C11 platforms, and
FLEXIBLE_ARRAY_MEMBER may be 1 on pre-C11 platforms.
/* Yield a properly aligned upper bound on the size of a struct of
type TYPE with a flexible array member named MEMBER that is
followed by N bytes of other data. The result is suitable as an
argument to malloc. For example:
struct s { int n; char d[FLEXIBLE_ARRAY_MEMBER]; };
struct s *p = malloc (FLEXSIZEOF (struct s, d, n * sizeof (char)));
FLEXSIZEOF (TYPE, MEMBER, N) is not simply (sizeof (TYPE) + N),
since FLEXIBLE_ARRAY_MEMBER may be 1 on pre-C11 platforms. Nor is
it simply (offsetof (TYPE, MEMBER) + N), as that might yield a size
that causes malloc to yield a pointer that is not properly aligned
for TYPE; for example, if sizeof (int) == alignof (int) == 4,
malloc (offsetof (struct s, d) + 3 * sizeof (char)) is equivalent
to malloc (7) and might yield a pointer that is not a multiple of 4
(which means the pointer is not properly aligned for struct s),
whereas malloc (FLEXSIZEOF (struct s, d, 3 * sizeof (char))) is
equivalent to malloc (8) and must yield a pointer that is a
multiple of 4.
Yield a value less than N if and only if arithmetic overflow occurs. */
#define FLEXSIZEOF(type, member, n) \

4
lib/float+.h
View file

@ -1,5 +1,5 @@
/* Supplemental information about the floating-point formats.
Copyright (C) 2007, 2009-2017 Free Software Foundation, Inc.
Copyright (C) 2007, 2009-2021 Free Software Foundation, Inc.
Written by Bruno Haible <bruno@clisp.org>, 2007.
This program is free software; you can redistribute it and/or modify
@ -13,7 +13,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>. */
along with this program; if not, see <https://www.gnu.org/licenses/>. */
#ifndef _FLOATPLUS_H
#define _FLOATPLUS_H

4
lib/float.c
View file

@ -1,5 +1,5 @@
/* Auxiliary definitions for <float.h>.
Copyright (C) 2011-2017 Free Software Foundation, Inc.
Copyright (C) 2011-2021 Free Software Foundation, Inc.
Written by Bruno Haible <bruno@clisp.org>, 2011.
This program is free software: you can redistribute it and/or modify
@ -13,7 +13,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#include <config.h>

16
lib/float.in.h
View file

@ -1,6 +1,6 @@
/* A correct <float.h>.
Copyright (C) 2007-2017 Free Software Foundation, Inc.
Copyright (C) 2007-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -13,7 +13,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#ifndef _@GUARD_PREFIX@_FLOAT_H
@ -62,8 +62,8 @@
/* On FreeBSD/x86 6.4, the 'long double' type really has only 53 bits of
precision in the compiler but 64 bits of precision at runtime. See
<http://lists.gnu.org/archive/html/bug-gnulib/2008-07/msg00063.html>. */
#if defined __i386__ && defined __FreeBSD__
<https://lists.gnu.org/r/bug-gnulib/2008-07/msg00063.html>. */
#if defined __i386__ && (defined __FreeBSD__ || defined __DragonFly__)
/* Number of mantissa units, in base FLT_RADIX. */
# undef LDBL_MANT_DIG
# define LDBL_MANT_DIG 64
@ -81,7 +81,7 @@
# define LDBL_MAX_EXP 16384
/* Minimum positive normalized number. */
# undef LDBL_MIN
# define LDBL_MIN 3.3621031431120935E-4932L /* = 0x1p-16382L */
# define LDBL_MIN 3.362103143112093506262677817321752E-4932L /* = 0x1p-16382L */
/* Maximum representable finite number. */
# undef LDBL_MAX
/* LDBL_MAX is represented as { 0xFFFFFFFF, 0xFFFFFFFF, 32766 }.
@ -93,11 +93,14 @@
extern const long double LDBL_MAX;
Unfortunately, this is not a constant expression. */
# if !GNULIB_defined_long_double_union
union gl_long_double_union
{
struct { unsigned int lo; unsigned int hi; unsigned int exponent; } xd;
long double ld;
};
# define GNULIB_defined_long_double_union 1
# endif
extern const union gl_long_double_union gl_LDBL_MAX;
# define LDBL_MAX (gl_LDBL_MAX.ld)
/* Minimum e such that 10^e is in the range of normalized numbers. */
@ -146,11 +149,14 @@ extern const union gl_long_double_union gl_LDBL_MAX;
Unfortunately, this is not a constant expression, and the latter expression
does not work well when GCC is optimizing.. */
# if !GNULIB_defined_long_double_union
union gl_long_double_union
{
struct { double hi; double lo; } dd;
long double ld;
};
# define GNULIB_defined_long_double_union 1
# endif
extern const union gl_long_double_union gl_LDBL_MAX;
# define LDBL_MAX (gl_LDBL_MAX.ld)
#endif

16
lib/flock.c
View file

@ -1,12 +1,12 @@
/* Emulate flock on platforms that lack it, primarily Windows and MinGW.
This is derived from sqlite3 sources.
http://www.sqlite.org/cvstrac/rlog?f=sqlite/src/os_win.c
http://www.sqlite.org/copyright.html
https://www.sqlite.org/src/finfo?name=src/os_win.c
https://www.sqlite.org/copyright.html
Written by Richard W.M. Jones <rjones.at.redhat.com>
Copyright (C) 2008-2017 Free Software Foundation, Inc.
Copyright (C) 2008-2021 Free Software Foundation, Inc.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
@ -19,12 +19,12 @@
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#include <config.h>
#include <sys/file.h>
#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
#if defined _WIN32 && ! defined __CYGWIN__
/* LockFileEx */
# define WIN32_LEAN_AND_MEAN
@ -33,7 +33,11 @@
# include <errno.h>
/* _get_osfhandle */
# include "msvc-nothrow.h"
# if GNULIB_MSVC_NOTHROW
# include "msvc-nothrow.h"
# else
# include <io.h>
# endif
/* Determine the current size of a file. Because the other braindead
* APIs we'll call need lower/upper 32 bit pairs, keep the file size

6
lib/floor.c
View file

@ -1,5 +1,5 @@
/* Round towards negative infinity.
Copyright (C) 2007, 2010-2017 Free Software Foundation, Inc.
Copyright (C) 2007, 2010-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -12,7 +12,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Bruno Haible <bruno@clisp.org>, 2007. */
@ -44,7 +44,7 @@
/* MSVC with option -fp:strict refuses to compile constant initializers that
contain floating-point operations. Pacify this compiler. */
#ifdef _MSC_VER
#if defined _MSC_VER && !defined __clang__
# pragma fenv_access (off)
#endif

47
lib/free.c Normal file
View file

@ -0,0 +1,47 @@
/* Make free() preserve errno.
Copyright (C) 2003, 2006, 2009-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* written by Paul Eggert */
#include <config.h>
#include <stdlib.h>
#include <errno.h>
void
rpl_free (void *p)
#undef free
{
#if defined __GNUC__ && !defined __clang__
/* An invalid GCC optimization
<https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98396>
would optimize away the assignments in the code below, when link-time
optimization (LTO) is enabled. Make the code more complicated, so that
GCC does not grok how to optimize it. */
int err[2];
err[0] = errno;
err[1] = errno;
errno = 0;
free (p);
errno = err[errno == 0];
#else
int err = errno;
free (p);
errno = err;
#endif
}

4
lib/frexp.c
View file

@ -1,5 +1,5 @@
/* Split a double into fraction and mantissa.
Copyright (C) 2007-2017 Free Software Foundation, Inc.
Copyright (C) 2007-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -12,7 +12,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Paolo Bonzini <bonzini@gnu.org>, 2003, and
Bruno Haible <bruno@clisp.org>, 2007. */

78
lib/fstat.c
View file

@ -1,5 +1,5 @@
/* fstat() replacement.
Copyright (C) 2011-2017 Free Software Foundation, Inc.
Copyright (C) 2011-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -12,7 +12,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* If the user's config.h happens to include <sys/stat.h>, let it include only
the system's <sys/stat.h> here, so that orig_fstat doesn't recurse to
@ -23,54 +23,45 @@
/* Get the original definition of fstat. It might be defined as a macro. */
#include <sys/types.h>
#include <sys/stat.h>
#if _GL_WINDOWS_64_BIT_ST_SIZE
# undef stat /* avoid warning on mingw64 with _FILE_OFFSET_BITS=64 */
# define stat _stati64
# undef fstat /* avoid warning on mingw64 with _FILE_OFFSET_BITS=64 */
# define fstat _fstati64
#endif
#undef __need_system_sys_stat_h
#if defined _WIN32 && ! defined __CYGWIN__
# define WINDOWS_NATIVE
#endif
#if !defined WINDOWS_NATIVE
static int
orig_fstat (int fd, struct stat *buf)
{
return fstat (fd, buf);
}
#endif
/* Specification. */
#ifdef __osf__
/* Write "sys/stat.h" here, not <sys/stat.h>, otherwise OSF/1 5.1 DTK cc
eliminates this include because of the preliminary #include <sys/stat.h>
above. */
#include "sys/stat.h"
# include "sys/stat.h"
#else
# include <sys/stat.h>
#endif
#include "stat-time.h"
#include <errno.h>
#include <unistd.h>
#if HAVE_MSVC_INVALID_PARAMETER_HANDLER
# include "msvc-inval.h"
#endif
#if HAVE_MSVC_INVALID_PARAMETER_HANDLER
static int
fstat_nothrow (int fd, struct stat *buf)
{
int result;
TRY_MSVC_INVAL
{
result = orig_fstat (fd, buf);
}
CATCH_MSVC_INVAL
{
result = -1;
errno = EBADF;
}
DONE_MSVC_INVAL;
return result;
}
#else
# define fstat_nothrow orig_fstat
#ifdef WINDOWS_NATIVE
# define WIN32_LEAN_AND_MEAN
# include <windows.h>
# if GNULIB_MSVC_NOTHROW
# include "msvc-nothrow.h"
# else
# include <io.h>
# endif
# include "stat-w32.h"
#endif
int
@ -84,5 +75,20 @@ rpl_fstat (int fd, struct stat *buf)
return stat (name, buf);
#endif
return fstat_nothrow (fd, buf);
#ifdef WINDOWS_NATIVE
/* Fill the fields ourselves, because the original fstat function returns
values for st_atime, st_mtime, st_ctime that depend on the current time
zone. See
<https://lists.gnu.org/r/bug-gnulib/2017-04/msg00134.html> */
HANDLE h = (HANDLE) _get_osfhandle (fd);
if (h == INVALID_HANDLE_VALUE)
{
errno = EBADF;
return -1;
}
return _gl_fstat_by_handle (h, NULL, buf);
#else
return stat_time_normalize (orig_fstat (fd, buf), buf);
#endif
}

16
lib/fsync.c
View file

@ -2,12 +2,12 @@
cross-compilers like MinGW.
This is derived from sqlite3 sources.
http://www.sqlite.org/cvstrac/rlog?f=sqlite/src/os_win.c
http://www.sqlite.org/copyright.html
https://www.sqlite.org/src/finfo?name=src/os_win.c
https://www.sqlite.org/copyright.html
Written by Richard W.M. Jones <rjones.at.redhat.com>
Copyright (C) 2008-2017 Free Software Foundation, Inc.
Copyright (C) 2008-2021 Free Software Foundation, Inc.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
@ -20,12 +20,12 @@
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#include <config.h>
#include <unistd.h>
#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
#if defined _WIN32 && ! defined __CYGWIN__
/* FlushFileBuffers */
# define WIN32_LEAN_AND_MEAN
@ -34,7 +34,11 @@
# include <errno.h>
/* Get _get_osfhandle. */
# include "msvc-nothrow.h"
# if GNULIB_MSVC_NOTHROW
# include "msvc-nothrow.h"
# else
# include <io.h>
# endif
int
fsync (int fd)

4
lib/full-read.c
View file

@ -1,5 +1,5 @@
/* An interface to read that retries after partial reads and interrupts.
Copyright (C) 2002-2003, 2009-2017 Free Software Foundation, Inc.
Copyright (C) 2002-2003, 2009-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -12,7 +12,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#define FULL_READ
#include "full-write.c"

4
lib/full-read.h
View file

@ -1,6 +1,6 @@
/* An interface to read() that reads all it is asked to read.
Copyright (C) 2002, 2009-2017 Free Software Foundation, Inc.
Copyright (C) 2002, 2009-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -13,7 +13,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#include <stddef.h>

4
lib/full-write.c
View file

@ -1,6 +1,6 @@
/* An interface to read and write that retries (if necessary) until complete.
Copyright (C) 1993-1994, 1997-2006, 2009-2017 Free Software Foundation, Inc.
Copyright (C) 1993-1994, 1997-2006, 2009-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -13,7 +13,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#include <config.h>

4
lib/full-write.h
View file

@ -1,6 +1,6 @@
/* An interface to write() that writes all it is asked to write.
Copyright (C) 2002-2003, 2009-2017 Free Software Foundation, Inc.
Copyright (C) 2002-2003, 2009-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -13,7 +13,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#include <stddef.h>

4
lib/gai_strerror.c
View file

@ -1,4 +1,4 @@
/* Copyright (C) 1997, 2001-2002, 2004-2006, 2008-2017 Free Software
/* Copyright (C) 1997, 2001-2002, 2004-2006, 2008-2021 Free Software
Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Philip Blundell <pjb27@cam.ac.uk>, 1997.
@ -14,7 +14,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>. */
along with this program; if not, see <https://www.gnu.org/licenses/>. */
#ifndef _LIBC
# include <config.h>

164
lib/getaddrinfo.c
View file

@ -1,5 +1,5 @@
/* Get address information (partial implementation).
Copyright (C) 1997, 2001-2002, 2004-2017 Free Software Foundation, Inc.
Copyright (C) 1997, 2001-2002, 2004-2021 Free Software Foundation, Inc.
Contributed by Simon Josefsson <simon@josefsson.org>.
This program is free software; you can redistribute it and/or modify
@ -13,7 +13,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>. */
along with this program; if not, see <https://www.gnu.org/licenses/>. */
/* Don't use __attribute__ __nonnull__ in this compilation unit. Otherwise gcc
optimizes away the sa == NULL test below. */
@ -54,14 +54,48 @@
# define PF_UNSPEC 0
#endif
#if defined _WIN32 || defined __WIN32__
# define WINDOWS_NATIVE
#endif
#if HAVE_GETADDRINFO
/* Override with cdecl calling convention. */
int
getaddrinfo (const char *restrict nodename,
const char *restrict servname,
const struct addrinfo *restrict hints,
struct addrinfo **restrict res)
# undef getaddrinfo
{
return getaddrinfo (nodename, servname, hints, res);
}
void
freeaddrinfo (struct addrinfo *ai)
# undef freeaddrinfo
{
freeaddrinfo (ai);
}
#else
# if defined _WIN32 && !defined __CYGWIN__
# define WINDOWS_NATIVE
# endif
/* gl_sockets_startup */
#include "sockets.h"
# include "sockets.h"
# ifdef WINDOWS_NATIVE
/* Don't assume that UNICODE is not defined. */
# undef GetModuleHandle
# define GetModuleHandle GetModuleHandleA
# if !(_WIN32_WINNT >= _WIN32_WINNT_WINXP)
/* Avoid warnings from gcc -Wcast-function-type. */
# define GetProcAddress \
(void *) GetProcAddress
#ifdef WINDOWS_NATIVE
typedef int (WSAAPI *getaddrinfo_func) (const char*, const char*,
const struct addrinfo*,
struct addrinfo**);
@ -107,20 +141,43 @@ use_win32_p (void)
return 1;
}
#endif
# else
static int
use_win32_p (void)
{
static int done = 0;
if (!done)
{
done = 1;
gl_sockets_startup (SOCKETS_1_1);
}
return 1;
}
# define getaddrinfo_ptr getaddrinfo
# define freeaddrinfo_ptr freeaddrinfo
# define getnameinfo_ptr getnameinfo
# endif
# endif
static bool
validate_family (int family)
{
/* FIXME: Support more families. */
#if HAVE_IPV4
# if HAVE_IPV4
if (family == PF_INET)
return true;
#endif
#if HAVE_IPV6
# endif
# if HAVE_IPV6
if (family == PF_INET6)
return true;
#endif
# endif
if (family == PF_UNSPEC)
return true;
return false;
@ -133,29 +190,30 @@ getaddrinfo (const char *restrict nodename,
const char *restrict servname,
const struct addrinfo *restrict hints,
struct addrinfo **restrict res)
#undef getaddrinfo
{
struct addrinfo *tmp;
int port = 0;
struct hostent *he;
void *storage;
size_t size;
#if HAVE_IPV6
# if HAVE_IPV6
struct v6_pair {
struct addrinfo addrinfo;
struct sockaddr_in6 sockaddr_in6;
};
#endif
#if HAVE_IPV4
# endif
# if HAVE_IPV4
struct v4_pair {
struct addrinfo addrinfo;
struct sockaddr_in sockaddr_in;
};
#endif
# endif
#ifdef WINDOWS_NATIVE
# ifdef WINDOWS_NATIVE
if (use_win32_p ())
return getaddrinfo_ptr (nodename, servname, hints, res);
#endif
# endif
if (hints && (hints->ai_flags & ~(AI_CANONNAME|AI_PASSIVE)))
/* FIXME: Support more flags. */
@ -174,11 +232,11 @@ getaddrinfo (const char *restrict nodename,
if (!(hints->ai_flags & AI_PASSIVE))
return EAI_NONAME;
#ifdef HAVE_IPV6
# ifdef HAVE_IPV6
nodename = (hints->ai_family == AF_INET6) ? "::" : "0.0.0.0";
#else
# else
nodename = "0.0.0.0";
#endif
# endif
}
if (servname)
@ -212,17 +270,17 @@ getaddrinfo (const char *restrict nodename,
switch (he->h_addrtype)
{
#if HAVE_IPV6
# if HAVE_IPV6
case PF_INET6:
size = sizeof (struct v6_pair);
break;
#endif
# endif
#if HAVE_IPV4
# if HAVE_IPV4
case PF_INET:
size = sizeof (struct v4_pair);
break;
#endif
# endif
default:
return EAI_NODATA;
@ -234,7 +292,7 @@ getaddrinfo (const char *restrict nodename,
switch (he->h_addrtype)
{
#if HAVE_IPV6
# if HAVE_IPV6
case PF_INET6:
{
struct v6_pair *p = storage;
@ -256,9 +314,9 @@ getaddrinfo (const char *restrict nodename,
tmp->ai_addrlen = sizeof *sinp;
}
break;
#endif
# endif
#if HAVE_IPV4
# if HAVE_IPV4
case PF_INET:
{
struct v4_pair *p = storage;
@ -280,7 +338,7 @@ getaddrinfo (const char *restrict nodename,
tmp->ai_addrlen = sizeof *sinp;
}
break;
#endif
# endif
default:
free (storage);
@ -308,21 +366,21 @@ getaddrinfo (const char *restrict nodename,
tmp->ai_addr->sa_family = he->h_addrtype;
tmp->ai_family = he->h_addrtype;
#ifdef HAVE_STRUCT_SOCKADDR_SA_LEN
# ifdef HAVE_STRUCT_SOCKADDR_SA_LEN
switch (he->h_addrtype)
{
#if HAVE_IPV4
# if HAVE_IPV4
case AF_INET:
tmp->ai_addr->sa_len = sizeof (struct sockaddr_in);
break;
#endif
#if HAVE_IPV6
# endif
# if HAVE_IPV6
case AF_INET6:
tmp->ai_addr->sa_len = sizeof (struct sockaddr_in6);
break;
#endif
# endif
}
#endif
# endif
/* FIXME: If more than one address, create linked list of addrinfo's. */
@ -334,14 +392,15 @@ getaddrinfo (const char *restrict nodename,
/* Free 'addrinfo' structure AI including associated storage. */
void
freeaddrinfo (struct addrinfo *ai)
#undef freeaddrinfo
{
#ifdef WINDOWS_NATIVE
# ifdef WINDOWS_NATIVE
if (use_win32_p ())
{
freeaddrinfo_ptr (ai);
return;
}
#endif
# endif
while (ai)
{
@ -360,12 +419,13 @@ getnameinfo (const struct sockaddr *restrict sa, socklen_t salen,
char *restrict node, socklen_t nodelen,
char *restrict service, socklen_t servicelen,
int flags)
#undef getnameinfo
{
#ifdef WINDOWS_NATIVE
# ifdef WINDOWS_NATIVE
if (use_win32_p ())
return getnameinfo_ptr (sa, salen, node, nodelen,
service, servicelen, flags);
#endif
# endif
/* FIXME: Support other flags. */
if ((node && nodelen > 0 && !(flags & NI_NUMERICHOST)) ||
@ -378,18 +438,18 @@ getnameinfo (const struct sockaddr *restrict sa, socklen_t salen,
switch (sa->sa_family)
{
#if HAVE_IPV4
# if HAVE_IPV4
case AF_INET:
if (salen < sizeof (struct sockaddr_in))
return EAI_FAMILY;
break;
#endif
#if HAVE_IPV6
# endif
# if HAVE_IPV6
case AF_INET6:
if (salen < sizeof (struct sockaddr_in6))
return EAI_FAMILY;
break;
#endif
# endif
default:
return EAI_FAMILY;
}
@ -398,23 +458,23 @@ getnameinfo (const struct sockaddr *restrict sa, socklen_t salen,
{
switch (sa->sa_family)
{
#if HAVE_IPV4
# if HAVE_IPV4
case AF_INET:
if (!inet_ntop (AF_INET,
&(((const struct sockaddr_in *) sa)->sin_addr),
node, nodelen))
return EAI_SYSTEM;
break;
#endif
# endif
#if HAVE_IPV6
# if HAVE_IPV6
case AF_INET6:
if (!inet_ntop (AF_INET6,
&(((const struct sockaddr_in6 *) sa)->sin6_addr),
node, nodelen))
return EAI_SYSTEM;
break;
#endif
# endif
default:
return EAI_FAMILY;
@ -424,12 +484,12 @@ getnameinfo (const struct sockaddr *restrict sa, socklen_t salen,
if (service && servicelen > 0 && flags & NI_NUMERICSERV)
switch (sa->sa_family)
{
#if HAVE_IPV4
# if HAVE_IPV4
case AF_INET:
#endif
#if HAVE_IPV6
# endif
# if HAVE_IPV6
case AF_INET6:
#endif
# endif
{
unsigned short int port
= ntohs (((const struct sockaddr_in *) sa)->sin_port);
@ -441,3 +501,5 @@ getnameinfo (const struct sockaddr *restrict sa, socklen_t salen,
return 0;
}
#endif

124
lib/getdtablesize.c Normal file
View file

@ -0,0 +1,124 @@
/* getdtablesize() function: Return maximum possible file descriptor value + 1.
Copyright (C) 2008-2021 Free Software Foundation, Inc.
Written by Bruno Haible <bruno@clisp.org>, 2008.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#include <config.h>
/* Specification. */
#include <unistd.h>
#if defined _WIN32 && ! defined __CYGWIN__
# include <stdio.h>
# if HAVE_MSVC_INVALID_PARAMETER_HANDLER
# include "msvc-inval.h"
# endif
# if HAVE_MSVC_INVALID_PARAMETER_HANDLER
static int
_setmaxstdio_nothrow (int newmax)
{
int result;
TRY_MSVC_INVAL
{
result = _setmaxstdio (newmax);
}
CATCH_MSVC_INVAL
{
result = -1;
}
DONE_MSVC_INVAL;
return result;
}
# else
# define _setmaxstdio_nothrow _setmaxstdio
# endif
/* Cache for the previous getdtablesize () result. Safe to cache because
Windows also lacks setrlimit. */
static int dtablesize;
int
getdtablesize (void)
{
if (dtablesize == 0)
{
/* We are looking for the number N such that the valid file descriptors
are 0..N-1. It can be obtained through a loop as follows:
{
int fd;
for (fd = 3; fd < 65536; fd++)
if (dup2 (0, fd) == -1)
break;
return fd;
}
On Windows XP, the result is 2048.
The drawback of this loop is that it allocates memory for a libc
internal array that is never freed.
The number N can also be obtained as the upper bound for
_getmaxstdio (). _getmaxstdio () returns the maximum number of open
FILE objects. The sanity check in _setmaxstdio reveals the maximum
number of file descriptors. This too allocates memory, but it is
freed when we call _setmaxstdio with the original value. */
int orig_max_stdio = _getmaxstdio ();
unsigned int bound;
for (bound = 0x10000; _setmaxstdio_nothrow (bound) < 0; bound = bound / 2)
;
_setmaxstdio_nothrow (orig_max_stdio);
dtablesize = bound;
}
return dtablesize;
}
#else
# include <limits.h>
# include <sys/resource.h>
# ifndef RLIM_SAVED_CUR
# define RLIM_SAVED_CUR RLIM_INFINITY
# endif
# ifndef RLIM_SAVED_MAX
# define RLIM_SAVED_MAX RLIM_INFINITY
# endif
# ifdef __CYGWIN__
/* Cygwin 1.7.25 auto-increases the RLIMIT_NOFILE soft limit until it
hits the compile-time constant hard limit of 3200. We might as
well just report the hard limit. */
# define rlim_cur rlim_max
# endif
int
getdtablesize (void)
{
struct rlimit lim;
if (getrlimit (RLIMIT_NOFILE, &lim) == 0
&& 0 <= lim.rlim_cur && lim.rlim_cur <= INT_MAX
&& lim.rlim_cur != RLIM_INFINITY
&& lim.rlim_cur != RLIM_SAVED_CUR
&& lim.rlim_cur != RLIM_SAVED_MAX)
return lim.rlim_cur;
return INT_MAX;
}
#endif

11
lib/getlogin.c
View file

@ -1,6 +1,6 @@
/* Provide a working getlogin for systems which lack it.
Copyright (C) 2010-2017 Free Software Foundation, Inc.
Copyright (C) 2010-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -13,7 +13,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Bruno Haible, 2010. */
@ -22,15 +22,18 @@
/* Specification. */
#include <unistd.h>
#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
#if defined _WIN32 && ! defined __CYGWIN__
# define WIN32_LEAN_AND_MEAN
# include <windows.h>
/* Don't assume that UNICODE is not defined. */
# undef GetUserName
# define GetUserName GetUserNameA
#endif
char *
getlogin (void)
{
#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
#if defined _WIN32 && ! defined __CYGWIN__
static char login_name[1024];
DWORD sz = sizeof (login_name);

4
lib/getpeername.c
View file

@ -1,6 +1,6 @@
/* getpeername.c --- wrappers for Windows getpeername function
Copyright (C) 2008-2017 Free Software Foundation, Inc.
Copyright (C) 2008-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -13,7 +13,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Paolo Bonzini */

187
lib/getrandom.c Normal file
View file

@ -0,0 +1,187 @@
/* Obtain a series of random bytes.
Copyright 2020-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Paul Eggert. */
#include <config.h>
#include <sys/random.h>
#include <errno.h>
#include <fcntl.h>
#include <stdbool.h>
#include <unistd.h>
#if defined _WIN32 && ! defined __CYGWIN__
# define WIN32_LEAN_AND_MEAN
# include <windows.h>
# if HAVE_BCRYPT_H
# include <bcrypt.h>
# else
# define NTSTATUS LONG
typedef void * BCRYPT_ALG_HANDLE;
# define BCRYPT_USE_SYSTEM_PREFERRED_RNG 0x00000002
# if HAVE_LIB_BCRYPT
extern NTSTATUS WINAPI BCryptGenRandom (BCRYPT_ALG_HANDLE, UCHAR *, ULONG, ULONG);
# endif
# endif
# if !HAVE_LIB_BCRYPT
# include <wincrypt.h>
# ifndef CRYPT_VERIFY_CONTEXT
# define CRYPT_VERIFY_CONTEXT 0xF0000000
# endif
# endif
#endif
#include "minmax.h"
#if defined _WIN32 && ! defined __CYGWIN__
/* Don't assume that UNICODE is not defined. */
# undef LoadLibrary
# define LoadLibrary LoadLibraryA
# undef CryptAcquireContext
# define CryptAcquireContext CryptAcquireContextA
# if !HAVE_LIB_BCRYPT
/* Avoid warnings from gcc -Wcast-function-type. */
# define GetProcAddress \
(void *) GetProcAddress
/* BCryptGenRandom with the BCRYPT_USE_SYSTEM_PREFERRED_RNG flag works only
starting with Windows 7. */
typedef NTSTATUS (WINAPI * BCryptGenRandomFuncType) (BCRYPT_ALG_HANDLE, UCHAR *, ULONG, ULONG);
static BCryptGenRandomFuncType BCryptGenRandomFunc = NULL;
static BOOL initialized = FALSE;
static void
initialize (void)
{
HMODULE bcrypt = LoadLibrary ("bcrypt.dll");
if (bcrypt != NULL)
{
BCryptGenRandomFunc =
(BCryptGenRandomFuncType) GetProcAddress (bcrypt, "BCryptGenRandom");
}
initialized = TRUE;
}
# else
# define BCryptGenRandomFunc BCryptGenRandom
# endif
#else
/* These devices exist on all platforms except native Windows. */
/* Name of a device through which the kernel returns high quality random
numbers, from an entropy pool. When the pool is empty, the call blocks
until entropy sources have added enough bits of entropy. */
# ifndef NAME_OF_RANDOM_DEVICE
# define NAME_OF_RANDOM_DEVICE "/dev/random"
# endif
/* Name of a device through which the kernel returns random or pseudo-random
numbers. It uses an entropy pool, but, in order to avoid blocking, adds
bits generated by a pseudo-random number generator, as needed. */
# ifndef NAME_OF_NONCE_DEVICE
# define NAME_OF_NONCE_DEVICE "/dev/urandom"
# endif
#endif
/* Set BUFFER (of size LENGTH) to random bytes under the control of FLAGS.
Return the number of bytes written (> 0).
Upon error, return -1 and set errno. */
ssize_t
getrandom (void *buffer, size_t length, unsigned int flags)
#undef getrandom
{
#if defined _WIN32 && ! defined __CYGWIN__
/* BCryptGenRandom, defined in <bcrypt.h>
<https://docs.microsoft.com/en-us/windows/win32/api/bcrypt/nf-bcrypt-bcryptgenrandom>
with the BCRYPT_USE_SYSTEM_PREFERRED_RNG flag
works in Windows 7 and newer. */
static int bcrypt_not_working /* = 0 */;
if (!bcrypt_not_working)
{
# if !HAVE_LIB_BCRYPT
if (!initialized)
initialize ();
# endif
if (BCryptGenRandomFunc != NULL
&& BCryptGenRandomFunc (NULL, buffer, length,
BCRYPT_USE_SYSTEM_PREFERRED_RNG)
== 0 /*STATUS_SUCCESS*/)
return length;
bcrypt_not_working = 1;
}
# if !HAVE_LIB_BCRYPT
/* CryptGenRandom, defined in <wincrypt.h>
<https://docs.microsoft.com/en-us/windows/win32/api/wincrypt/nf-wincrypt-cryptgenrandom>
works in older releases as well, but is now deprecated.
CryptAcquireContext, defined in <wincrypt.h>
<https://docs.microsoft.com/en-us/windows/win32/api/wincrypt/nf-wincrypt-cryptacquirecontexta> */
{
static int crypt_initialized /* = 0 */;
static HCRYPTPROV provider;
if (!crypt_initialized)
{
if (CryptAcquireContext (&provider, NULL, NULL, PROV_RSA_FULL,
CRYPT_VERIFY_CONTEXT))
crypt_initialized = 1;
else
crypt_initialized = -1;
}
if (crypt_initialized >= 0)
{
if (!CryptGenRandom (provider, length, buffer))
{
errno = EIO;
return -1;
}
return length;
}
}
# endif
errno = ENOSYS;
return -1;
#elif HAVE_GETRANDOM
return getrandom (buffer, length, flags);
#else
static int randfd[2] = { -1, -1 };
bool devrandom = (flags & GRND_RANDOM) != 0;
int fd = randfd[devrandom];
if (fd < 0)
{
static char const randdevice[][MAX (sizeof NAME_OF_NONCE_DEVICE,
sizeof NAME_OF_RANDOM_DEVICE)]
= { NAME_OF_NONCE_DEVICE, NAME_OF_RANDOM_DEVICE };
int oflags = (O_RDONLY + O_CLOEXEC
+ (flags & GRND_NONBLOCK ? O_NONBLOCK : 0));
fd = open (randdevice[devrandom], oflags);
if (fd < 0)
return fd;
randfd[devrandom] = fd;
}
return read (fd, buffer, length);
#endif
}

4
lib/getsockname.c
View file

@ -1,6 +1,6 @@
/* getsockname.c --- wrappers for Windows getsockname function
Copyright (C) 2008-2017 Free Software Foundation, Inc.
Copyright (C) 2008-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -13,7 +13,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Paolo Bonzini */

4
lib/getsockopt.c
View file

@ -1,6 +1,6 @@
/* getsockopt.c --- wrappers for Windows getsockopt function
Copyright (C) 2008-2017 Free Software Foundation, Inc.
Copyright (C) 2008-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -13,7 +13,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Paolo Bonzini */

21
lib/gettext.h
View file

@ -1,5 +1,5 @@
/* Convenience header for conditional use of GNU <libintl.h>.
Copyright (C) 1995-1998, 2000-2002, 2004-2006, 2009-2017 Free Software
Copyright (C) 1995-1998, 2000-2002, 2004-2006, 2009-2021 Free Software
Foundation, Inc.
This program is free software; you can redistribute it and/or modify
@ -13,13 +13,14 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, see <http://www.gnu.org/licenses/>. */
with this program; if not, see <https://www.gnu.org/licenses/>. */
#ifndef _LIBGETTEXT_H
#define _LIBGETTEXT_H 1
/* NLS can be disabled through the configure --disable-nls option. */
#if ENABLE_NLS
/* NLS can be disabled through the configure --disable-nls option
or through "#define ENABLE NLS 0" before including this file. */
#if defined ENABLE_NLS && ENABLE_NLS
/* Get declarations of GNU message catalog functions. */
# include <libintl.h>
@ -183,8 +184,16 @@ npgettext_aux (const char *domain,
#include <string.h>
#if (((__GNUC__ >= 3 || __GNUG__ >= 2) && !defined __STRICT_ANSI__) \
/* || __STDC_VERSION__ >= 199901L */ )
/* GNULIB_NO_VLA can be defined to disable use of VLAs even if supported.
This relates to the -Wvla and -Wvla-larger-than warnings, enabled in
the default GCC many warnings set. This allows programs to disable use
of VLAs, which may be unintended, or may be awkward to support portably,
or may have security implications due to non-deterministic stack usage. */
#if (!defined GNULIB_NO_VLA \
&& (((__GNUC__ >= 3 || __GNUG__ >= 2) && !defined __STRICT_ANSI__) \
/* || (__STDC_VERSION__ == 199901L && !defined __HP_cc)
|| (__STDC_VERSION__ >= 201112L && !defined __STDC_NO_VLA__) */ ))
# define _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS 1
#else
# define _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS 0

154
lib/gettimeofday.c
View file

@ -1,154 +0,0 @@
/* Provide gettimeofday for systems that don't have it or for which it's broken.
Copyright (C) 2001-2003, 2005-2007, 2009-2017 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>. */
/* written by Jim Meyering */
#include <config.h>
/* Specification. */
#include <sys/time.h>
#include <time.h>
#if HAVE_SYS_TIMEB_H
# include <sys/timeb.h>
#endif
#if GETTIMEOFDAY_CLOBBERS_LOCALTIME || TZSET_CLOBBERS_LOCALTIME
/* Work around the bug in some systems whereby gettimeofday clobbers
the static buffer that localtime uses for its return value. The
gettimeofday function from Mac OS X 10.0.4 (i.e., Darwin 1.3.7) has
this problem. The tzset replacement is necessary for at least
Solaris 2.5, 2.5.1, and 2.6. */
static struct tm tm_zero_buffer;
static struct tm *localtime_buffer_addr = &tm_zero_buffer;
# undef localtime
extern struct tm *localtime (time_t const *);
# undef gmtime
extern struct tm *gmtime (time_t const *);
/* This is a wrapper for localtime. It is used only on systems for which
gettimeofday clobbers the static buffer used for localtime's result.
On the first call, record the address of the static buffer that
localtime uses for its result. */
struct tm *
rpl_localtime (time_t const *timep)
{
struct tm *tm = localtime (timep);
if (localtime_buffer_addr == &tm_zero_buffer)
localtime_buffer_addr = tm;
return tm;
}
/* Same as above, since gmtime and localtime use the same buffer. */
struct tm *
rpl_gmtime (time_t const *timep)
{
struct tm *tm = gmtime (timep);
if (localtime_buffer_addr == &tm_zero_buffer)
localtime_buffer_addr = tm;
return tm;
}
#endif /* GETTIMEOFDAY_CLOBBERS_LOCALTIME || TZSET_CLOBBERS_LOCALTIME */
#if TZSET_CLOBBERS_LOCALTIME
# undef tzset
extern void tzset (void);
/* This is a wrapper for tzset, for systems on which tzset may clobber
the static buffer used for localtime's result. */
void
rpl_tzset (void)
{
/* Save and restore the contents of the buffer used for localtime's
result around the call to tzset. */
struct tm save = *localtime_buffer_addr;
tzset ();
*localtime_buffer_addr = save;
}
#endif
/* This is a wrapper for gettimeofday. It is used only on systems
that lack this function, or whose implementation of this function
causes problems. */
int
gettimeofday (struct timeval *restrict tv, void *restrict tz)
{
#undef gettimeofday
#if HAVE_GETTIMEOFDAY
# if GETTIMEOFDAY_CLOBBERS_LOCALTIME
/* Save and restore the contents of the buffer used for localtime's
result around the call to gettimeofday. */
struct tm save = *localtime_buffer_addr;
# endif
# if defined timeval /* 'struct timeval' overridden by gnulib? */
# undef timeval
struct timeval otv;
int result = gettimeofday (&otv, (struct timezone *) tz);
if (result == 0)
{
tv->tv_sec = otv.tv_sec;
tv->tv_usec = otv.tv_usec;
}
# else
int result = gettimeofday (tv, (struct timezone *) tz);
# endif
# if GETTIMEOFDAY_CLOBBERS_LOCALTIME
*localtime_buffer_addr = save;
# endif
return result;
#else
# if HAVE__FTIME
struct _timeb timebuf;
_ftime (&timebuf);
tv->tv_sec = timebuf.time;
tv->tv_usec = timebuf.millitm * 1000;
# else
# if !defined OK_TO_USE_1S_CLOCK
# error "Only 1-second nominal clock resolution found. Is that intended?" \
"If so, compile with the -DOK_TO_USE_1S_CLOCK option."
# endif
tv->tv_sec = time (NULL);
tv->tv_usec = 0;
# endif
return 0;
#endif
}

49
lib/hard-locale.c
View file

@ -1,6 +1,6 @@
/* hard-locale.c -- Determine whether a locale is hard.
Copyright (C) 1997-1999, 2002-2004, 2006-2007, 2009-2017 Free Software
Copyright (C) 1997-1999, 2002-2004, 2006-2007, 2009-2021 Free Software
Foundation, Inc.
This program is free software: you can redistribute it and/or modify
@ -14,59 +14,22 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#include <config.h>
#include "hard-locale.h"
#include <locale.h>
#include <stdlib.h>
#include <string.h>
#ifdef __GLIBC__
# define GLIBC_VERSION __GLIBC__
#elif defined __UCLIBC__
# define GLIBC_VERSION 2
#else
# define GLIBC_VERSION 0
#endif
/* Return true if the current CATEGORY locale is hard, i.e. if you
can't get away with assuming traditional C or POSIX behavior. */
bool
hard_locale (int category)
{
bool hard = true;
char const *p = setlocale (category, NULL);
char locale[SETLOCALE_NULL_MAX];
if (p)
{
if (2 <= GLIBC_VERSION)
{
if (strcmp (p, "C") == 0 || strcmp (p, "POSIX") == 0)
hard = false;
}
else
{
char *locale = strdup (p);
if (locale)
{
/* Temporarily set the locale to the "C" and "POSIX" locales
to find their names, so that we can determine whether one
or the other is the caller's locale. */
if (((p = setlocale (category, "C"))
&& strcmp (p, locale) == 0)
|| ((p = setlocale (category, "POSIX"))
&& strcmp (p, locale) == 0))
hard = false;
if (setlocale_null_r (category, locale, sizeof (locale)))
return false;
/* Restore the caller's locale. */
setlocale (category, locale);
free (locale);
}
}
}
return hard;
return !(strcmp (locale, "C") == 0 || strcmp (locale, "POSIX") == 0);
}

9
lib/hard-locale.h
View file

@ -1,6 +1,6 @@
/* Determine whether a locale is hard.
Copyright (C) 1999, 2003-2004, 2009-2017 Free Software Foundation, Inc.
Copyright (C) 1999, 2003-2004, 2009-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -13,13 +13,16 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#ifndef HARD_LOCALE_H_
# define HARD_LOCALE_H_ 1
# include <stdbool.h>
bool hard_locale (int);
/* Return true if the specified CATEGORY of the current locale is hard, i.e.
different from the C or POSIX locale that has a fixed behavior.
CATEGORY must be one of the LC_* values, but not LC_ALL. */
extern bool hard_locale (int category);
#endif /* HARD_LOCALE_H_ */

7
lib/iconv.c
View file

@ -1,5 +1,5 @@
/* Character set conversion.
Copyright (C) 1999-2001, 2007, 2009-2017 Free Software Foundation, Inc.
Copyright (C) 1999-2001, 2007, 2009-2021 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -12,7 +12,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, see <http://www.gnu.org/licenses/>. */
with this program; if not, see <https://www.gnu.org/licenses/>. */
#include <config.h>
@ -26,9 +26,6 @@
# include <stdint.h>
# include <stdlib.h>
# include "unistr.h"
# ifndef uintptr_t
# define uintptr_t unsigned long
# endif
#endif
#if REPLACE_ICONV_UTF

37
lib/iconv.in.h
View file

@ -1,6 +1,6 @@
/* A GNU-like <iconv.h>.
Copyright (C) 2007-2017 Free Software Foundation, Inc.
Copyright (C) 2007-2021 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -13,7 +13,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>. */
along with this program; if not, see <https://www.gnu.org/licenses/>. */
#ifndef _@GUARD_PREFIX@_ICONV_H
@ -52,6 +52,12 @@ _GL_CXXALIAS_SYS (iconv_open, iconv_t,
(const char *tocode, const char *fromcode));
# endif
_GL_CXXALIASWARN (iconv_open);
#elif defined GNULIB_POSIXCHECK
# undef iconv_open
# if HAVE_RAW_DECL_ICONV_OPEN
_GL_WARN_ON_USE (iconv_open, "iconv_open is not working correctly everywhere - "
"use gnulib module iconv for portability");
# endif
#endif
#if @REPLACE_ICONV_UTF@
@ -74,22 +80,33 @@ _GL_CXXALIASWARN (iconv_open);
# endif
_GL_FUNCDECL_RPL (iconv, size_t,
(iconv_t cd,
@ICONV_CONST@ char **inbuf, size_t *inbytesleft,
char **outbuf, size_t *outbytesleft));
@ICONV_CONST@ char **restrict inbuf,
size_t *restrict inbytesleft,
char **restrict outbuf, size_t *restrict outbytesleft));
_GL_CXXALIAS_RPL (iconv, size_t,
(iconv_t cd,
@ICONV_CONST@ char **inbuf, size_t *inbytesleft,
char **outbuf, size_t *outbytesleft));
@ICONV_CONST@ char **restrict inbuf,
size_t *restrict inbytesleft,
char **restrict outbuf, size_t *restrict outbytesleft));
# else
_GL_CXXALIAS_SYS (iconv, size_t,
(iconv_t cd,
@ICONV_CONST@ char **inbuf, size_t *inbytesleft,
char **outbuf, size_t *outbytesleft));
/* Need to cast, because on some versions of Solaris, ICONV_CONST does
not have the right value for C++. */
_GL_CXXALIAS_SYS_CAST (iconv, size_t,
(iconv_t cd,
@ICONV_CONST@ char **restrict inbuf,
size_t *restrict inbytesleft,
char **restrict outbuf, size_t *restrict outbytesleft));
# endif
_GL_CXXALIASWARN (iconv);
# ifndef ICONV_CONST
# define ICONV_CONST @ICONV_CONST@
# endif
#elif defined GNULIB_POSIXCHECK
# undef iconv
# if HAVE_RAW_DECL_ICONV
_GL_WARN_ON_USE (iconv, "iconv is not working correctly everywhere - "
"use gnulib module iconv for portability");
# endif
#endif
#if @GNULIB_ICONV@

7
lib/iconv_close.c
View file

@ -1,5 +1,5 @@
/* Character set conversion.
Copyright (C) 2007, 2009-2017 Free Software Foundation, Inc.
Copyright (C) 2007, 2009-2021 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -12,7 +12,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, see <http://www.gnu.org/licenses/>. */
with this program; if not, see <https://www.gnu.org/licenses/>. */
#include <config.h>
@ -20,9 +20,6 @@
#include <iconv.h>
#include <stdint.h>
#ifndef uintptr_t
# define uintptr_t unsigned long
#endif
int
rpl_iconv_close (iconv_t cd)

16
lib/iconv_open-aix.gperf
View file

@ -1,3 +1,19 @@
/* Character set conversion.
Copyright (C) 2007, 2020-2021 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, see <https://www.gnu.org/licenses/>. */
struct mapping { int standard_name; const char vendor_name[10 + 1]; };
%struct-type
%language=ANSI-C

16
lib/iconv_open-hpux.gperf
View file

@ -1,3 +1,19 @@
/* Character set conversion.
Copyright (C) 2007, 2020-2021 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, see <https://www.gnu.org/licenses/>. */
struct mapping { int standard_name; const char vendor_name[9 + 1]; };
%struct-type
%language=ANSI-C

16
lib/iconv_open-irix.gperf
View file

@ -1,3 +1,19 @@
/* Character set conversion.
Copyright (C) 2007, 2020-2021 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, see <https://www.gnu.org/licenses/>. */
struct mapping { int standard_name; const char vendor_name[10 + 1]; };
%struct-type
%language=ANSI-C

16
lib/iconv_open-osf.gperf
View file

@ -1,3 +1,19 @@
/* Character set conversion.
Copyright (C) 2007, 2020-2021 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, see <https://www.gnu.org/licenses/>. */
struct mapping { int standard_name; const char vendor_name[10 + 1]; };
%struct-type
%language=ANSI-C

16
lib/iconv_open-solaris.gperf
View file

@ -1,3 +1,19 @@
/* Character set conversion.
Copyright (C) 2007, 2009, 2020-2021 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, see <https://www.gnu.org/licenses/>. */
struct mapping { int standard_name; const char vendor_name[10 + 1]; };
%struct-type
%language=ANSI-C

76
lib/iconv_open-zos.gperf Normal file
View file

@ -0,0 +1,76 @@
/* Character set conversion.
Copyright (C) 2019-2021 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, see <https://www.gnu.org/licenses/>. */
struct mapping { int standard_name; const char vendor_name[10 + 1]; };
%struct-type
%language=ANSI-C
%define slot-name standard_name
%define hash-function-name mapping_hash
%define lookup-function-name mapping_lookup
%readonly-tables
%global-table
%define word-array-name mappings
%pic
%%
ASCII, "00367"
ISO-8859-1, "ISO8859-1"
ISO-8859-2, "ISO8859-2"
ISO-8859-3, "00913"
ISO-8859-4, "ISO8859-4"
ISO-8859-5, "ISO8859-5"
ISO-8859-6, "ISO8859-6"
ISO-8859-7, "ISO8859-7"
ISO-8859-8, "05012"
ISO-8859-9, "ISO8859-9"
ISO-8859-13, "ISO8859-13"
ISO-8859-15, "ISO8859-15"
KOI8-R, "00878"
KOI8-U, "01168"
CP437, "IBM-437"
CP775, "00775"
CP850, "09042"
CP852, "IBM-852"
CP855, "13143"
CP856, "IBM-856"
CP857, "00857"
CP861, "IBM-861"
CP862, "IBM-862"
CP864, "IBM-864"
CP865, "00865"
CP866, "04962"
CP869, "IBM-869"
CP874, "TIS-620"
CP922, "IBM-922"
CP932, "IBM-943"
CP943, "IBM-943"
CP949, "IBM-1363"
CP1046, "IBM-1046"
CP1124, "IBM-1124"
CP1125, "IBM-1125"
CP1129, "01129"
CP1131, "01131"
CP1250, "IBM-5346"
CP1251, "IBM-5347"
CP1252, "IBM-5348"
CP1253, "IBM-5349"
CP1254, "IBM-5350"
CP1255, "09447"
CP1256, "09448"
CP1257, "09449"
GB2312, "IBM-eucCN"
EUC-JP, "01350"
EUC-KR, "IBM-eucKR"
GBK, "IBM-1386"

5
lib/iconv_open.c
View file

@ -1,5 +1,5 @@
/* Character set conversion.
Copyright (C) 2007, 2009-2017 Free Software Foundation, Inc.
Copyright (C) 2007, 2009-2021 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -12,7 +12,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, see <http://www.gnu.org/licenses/>. */
with this program; if not, see <https://www.gnu.org/licenses/>. */
#include <config.h>
@ -36,6 +36,7 @@
#define ICONV_FLAVOR_IRIX "iconv_open-irix.h"
#define ICONV_FLAVOR_OSF "iconv_open-osf.h"
#define ICONV_FLAVOR_SOLARIS "iconv_open-solaris.h"
#define ICONV_FLAVOR_ZOS "iconv_open-zos.h"
#ifdef ICONV_FLAVOR
# include ICONV_FLAVOR

4
lib/iconveh.h
View file

@ -1,5 +1,5 @@
/* Character set conversion handler type.
Copyright (C) 2001-2007, 2009-2017 Free Software Foundation, Inc.
Copyright (C) 2001-2007, 2009-2021 Free Software Foundation, Inc.
Written by Bruno Haible.
This program is free software: you can redistribute it and/or modify
@ -13,7 +13,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#ifndef _ICONVEH_H
#define _ICONVEH_H

114
lib/idx.h Normal file
View file

@ -0,0 +1,114 @@
/* A type for indices and sizes.
Copyright (C) 2020-2021 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#ifndef _IDX_H
#define _IDX_H
/* Get ptrdiff_t. */
#include <stddef.h>
/* Get PTRDIFF_MAX. */
#include <stdint.h>
/* The type 'idx_t' holds an (array) index or an (object) size.
Its implementation promotes to a signed integer type,
which can hold the values
0..2^63-1 (on 64-bit platforms) or
0..2^31-1 (on 32-bit platforms).
Why a signed integer type?
* Security: Signed types can be checked for overflow via
'-fsanitize=undefined', but unsigned types cannot.
* Comparisons without surprises: ISO C99 § 6.3.1.8 specifies a few
surprising results for comparisons, such as
(int) -3 < (unsigned long) 7 => false
(int) -3 < (unsigned int) 7 => false
and on 32-bit machines:
(long) -3 < (unsigned int) 7 => false
This is surprising because the natural comparison order is by
value in the realm of infinite-precision signed integers (ℤ).
The best way to get rid of such surprises is to use signed types
for numerical integer values, and use unsigned types only for
bit masks and enums.
Why not use 'size_t' directly?
* Because 'size_t' is an unsigned type, and a signed type is better.
See above.
Why not use 'ptrdiff_t' directly?
* Maintainability: When reading and modifying code, it helps to know that
a certain variable cannot have negative values. For example, when you
have a loop
int n = ...;
for (int i = 0; i < n; i++) ...
or
ptrdiff_t n = ...;
for (ptrdiff_t i = 0; i < n; i++) ...
you have to ask yourself "what if n < 0?". Whereas in
idx_t n = ...;
for (idx_t i = 0; i < n; i++) ...
you know that this case cannot happen.
Similarly, when a programmer writes
idx_t = ptr2 - ptr1;
there is an implied assertion that ptr1 and ptr2 point into the same
object and that ptr1 <= ptr2.
* Being future-proof: In the future, range types (integers which are
constrained to a certain range of values) may be added to C compilers
or to the C standard. Several programming languages (Ada, Haskell,
Common Lisp, Pascal) already have range types. Such range types may
help producing good code and good warnings. The type 'idx_t' could
then be typedef'ed to a range type that is signed after promotion. */
/* In the future, idx_t could be typedef'ed to a signed range type.
The clang "extended integer types", supported in Clang 11 or newer
<https://clang.llvm.org/docs/LanguageExtensions.html#extended-integer-types>,
are a special case of range types. However, these types don't support binary
operators with plain integer types (e.g. expressions such as x > 1).
Therefore, they don't behave like signed types (and not like unsigned types
either). So, we cannot use them here. */
/* Use the signed type 'ptrdiff_t'. */
/* Note: ISO C does not mandate that 'size_t' and 'ptrdiff_t' have the same
size, but it is so on all platforms we have seen since 1990. */
typedef ptrdiff_t idx_t;
/* IDX_MAX is the maximum value of an idx_t. */
#define IDX_MAX PTRDIFF_MAX
/* So far no need has been found for an IDX_WIDTH macro.
Perhaps there should be another macro IDX_VALUE_BITS that does not
count the sign bit and is therefore one less than PTRDIFF_WIDTH. */
#endif /* _IDX_H */

4
lib/inet_ntop.c
View file

@ -1,6 +1,6 @@
/* inet_ntop.c -- convert IPv4 and IPv6 addresses from binary to text form
Copyright (C) 2005-2006, 2008-2017 Free Software Foundation, Inc.
Copyright (C) 2005-2006, 2008-2021 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -13,7 +13,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>. */
along with this program; if not, see <https://www.gnu.org/licenses/>. */
/*
* Copyright (c) 1996-1999 by Internet Software Consortium.

4
lib/inet_pton.c
View file

@ -1,6 +1,6 @@
/* inet_pton.c -- convert IPv4 and IPv6 addresses from text to binary form
Copyright (C) 2006, 2008-2017 Free Software Foundation, Inc.
Copyright (C) 2006, 2008-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -13,7 +13,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/*
* Copyright (c) 1996,1999 by Internet Software Consortium.

364
lib/intprops.h
View file

@ -1,6 +1,6 @@
/* intprops.h -- properties of integer types
Copyright (C) 2001-2017 Free Software Foundation, Inc.
Copyright (C) 2001-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published
@ -13,7 +13,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Paul Eggert. */
@ -21,14 +21,14 @@
#define _GL_INTPROPS_H
#include <limits.h>
#include <verify.h>
/* Return a value with the common real type of E and V and the value of V. */
#define _GL_INT_CONVERT(e, v) (0 * (e) + (v))
/* Return a value with the common real type of E and V and the value of V.
Do not evaluate E. */
#define _GL_INT_CONVERT(e, v) ((1 ? 0 : (e)) + (v))
/* Act like _GL_INT_CONVERT (E, -V) but work around a bug in IRIX 6.5 cc; see
<http://lists.gnu.org/archive/html/bug-gnulib/2011-05/msg00406.html>. */
#define _GL_INT_NEGATE_CONVERT(e, v) (0 * (e) - (v))
<https://lists.gnu.org/r/bug-gnulib/2011-05/msg00406.html>. */
#define _GL_INT_NEGATE_CONVERT(e, v) ((1 ? 0 : (e)) - (v))
/* The extra casts in the following macros work around compiler bugs,
e.g., in Cray C 5.0.3.0. */
@ -41,13 +41,14 @@
#define TYPE_SIGNED(t) (! ((t) 0 < (t) -1))
/* Return 1 if the real expression E, after promotion, has a
signed or floating type. */
signed or floating type. Do not evaluate E. */
#define EXPR_SIGNED(e) (_GL_INT_NEGATE_CONVERT (e, 1) < 0)
/* Minimum and maximum values for integer types and expressions. */
/* The width in bits of the integer type or expression T.
Do not evaluate T. T must not be a bit-field expression.
Padding bits are not supported; this is checked at compile-time below. */
#define TYPE_WIDTH(t) (sizeof (t) * CHAR_BIT)
@ -59,7 +60,7 @@
: ((((t) 1 << (TYPE_WIDTH (t) - 2)) - 1) * 2 + 1)))
/* The maximum and minimum values for the type of the expression E,
after integer promotion. E should not have side effects. */
after integer promotion. E is not evaluated. */
#define _GL_INT_MINIMUM(e) \
(EXPR_SIGNED (e) \
? ~ _GL_SIGNED_INT_MAXIMUM (e) \
@ -69,7 +70,7 @@
? _GL_SIGNED_INT_MAXIMUM (e) \
: _GL_INT_NEGATE_CONVERT (e, 1))
#define _GL_SIGNED_INT_MAXIMUM(e) \
(((_GL_INT_CONVERT (e, 1) << (TYPE_WIDTH ((e) + 0) - 2)) - 1) * 2 + 1)
(((_GL_INT_CONVERT (e, 1) << (TYPE_WIDTH (+ (e)) - 2)) - 1) * 2 + 1)
/* Work around OpenVMS incompatibility with C99. */
#if !defined LLONG_MAX && defined __INT64_MAX
@ -80,28 +81,12 @@
/* This include file assumes that signed types are two's complement without
padding bits; the above macros have undefined behavior otherwise.
If this is a problem for you, please let us know how to fix it for your host.
As a sanity check, test the assumption for some signed types that
<limits.h> bounds. */
verify (TYPE_MINIMUM (signed char) == SCHAR_MIN);
verify (TYPE_MAXIMUM (signed char) == SCHAR_MAX);
verify (TYPE_MINIMUM (short int) == SHRT_MIN);
verify (TYPE_MAXIMUM (short int) == SHRT_MAX);
verify (TYPE_MINIMUM (int) == INT_MIN);
verify (TYPE_MAXIMUM (int) == INT_MAX);
verify (TYPE_MINIMUM (long int) == LONG_MIN);
verify (TYPE_MAXIMUM (long int) == LONG_MAX);
#ifdef LLONG_MAX
verify (TYPE_MINIMUM (long long int) == LLONG_MIN);
verify (TYPE_MAXIMUM (long long int) == LLONG_MAX);
#endif
/* Similarly, sanity-check one ISO/IEC TS 18661-1:2014 macro if defined. */
#ifdef UINT_WIDTH
verify (TYPE_WIDTH (unsigned int) == UINT_WIDTH);
#endif
This assumption is tested by the intprops-tests module. */
/* Does the __typeof__ keyword work? This could be done by
'configure', but for now it's easier to do it by hand. */
#if (2 <= __GNUC__ \
|| (4 <= __clang_major__) \
|| (1210 <= __IBMC__ && defined __IBM__TYPEOF__) \
|| (0x5110 <= __SUNPRO_C && !__STDC__))
# define _GL_HAVE___TYPEOF__ 1
@ -110,8 +95,9 @@ verify (TYPE_WIDTH (unsigned int) == UINT_WIDTH);
#endif
/* Return 1 if the integer type or expression T might be signed. Return 0
if it is definitely unsigned. This macro does not evaluate its argument,
and expands to an integer constant expression. */
if it is definitely unsigned. T must not be a bit-field expression.
This macro does not evaluate its argument, and expands to an
integer constant expression. */
#if _GL_HAVE___TYPEOF__
# define _GL_SIGNED_TYPE_OR_EXPR(t) TYPE_SIGNED (__typeof__ (t))
#else
@ -124,18 +110,20 @@ verify (TYPE_WIDTH (unsigned int) == UINT_WIDTH);
#define INT_BITS_STRLEN_BOUND(b) (((b) * 146 + 484) / 485)
/* Bound on length of the string representing an integer type or expression T.
T must not be a bit-field expression.
Subtract 1 for the sign bit if T is signed, and then add 1 more for
a minus sign if needed.
Because _GL_SIGNED_TYPE_OR_EXPR sometimes returns 0 when its argument is
signed, this macro may overestimate the true bound by one byte when
Because _GL_SIGNED_TYPE_OR_EXPR sometimes returns 1 when its argument is
unsigned, this macro may overestimate the true bound by one byte when
applied to unsigned types of size 2, 4, 16, ... bytes. */
#define INT_STRLEN_BOUND(t) \
(INT_BITS_STRLEN_BOUND (TYPE_WIDTH (t) - _GL_SIGNED_TYPE_OR_EXPR (t)) \
+ _GL_SIGNED_TYPE_OR_EXPR (t))
/* Bound on buffer size needed to represent an integer type or expression T,
including the terminating null. */
including the terminating null. T must not be a bit-field expression. */
#define INT_BUFSIZE_BOUND(t) (INT_STRLEN_BOUND (t) + 1)
@ -197,7 +185,7 @@ verify (TYPE_WIDTH (unsigned int) == UINT_WIDTH);
/* Return 1 if A * B would overflow in [MIN,MAX] arithmetic.
See above for restrictions. Avoid && and || as they tickle
bugs in Sun C 5.11 2010/08/13 and other compilers; see
<http://lists.gnu.org/archive/html/bug-gnulib/2011-05/msg00401.html>. */
<https://lists.gnu.org/r/bug-gnulib/2011-05/msg00401.html>. */
#define INT_MULTIPLY_RANGE_OVERFLOW(a, b, min, max) \
((b) < 0 \
? ((a) < 0 \
@ -236,11 +224,39 @@ verify (TYPE_WIDTH (unsigned int) == UINT_WIDTH);
? (a) < (min) >> (b) \
: (max) >> (b) < (a))
/* True if __builtin_add_overflow (A, B, P) works when P is non-null. */
#define _GL_HAS_BUILTIN_OVERFLOW (5 <= __GNUC__)
/* True if __builtin_add_overflow (A, B, P) and __builtin_sub_overflow
(A, B, P) work when P is non-null. */
/* __builtin_{add,sub}_overflow exists but is not reliable in GCC 5.x and 6.x,
see <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98269>. */
#if 7 <= __GNUC__ && !defined __ICC
# define _GL_HAS_BUILTIN_ADD_OVERFLOW 1
#elif defined __has_builtin
# define _GL_HAS_BUILTIN_ADD_OVERFLOW __has_builtin (__builtin_add_overflow)
#else
# define _GL_HAS_BUILTIN_ADD_OVERFLOW 0
#endif
/* True if __builtin_add_overflow_p (A, B, C) works. */
#define _GL_HAS_BUILTIN_OVERFLOW_P (7 <= __GNUC__)
/* True if __builtin_mul_overflow (A, B, P) works when P is non-null. */
#ifdef __clang__
/* Work around Clang bug <https://bugs.llvm.org/show_bug.cgi?id=16404>. */
# define _GL_HAS_BUILTIN_MUL_OVERFLOW 0
#else
# define _GL_HAS_BUILTIN_MUL_OVERFLOW _GL_HAS_BUILTIN_ADD_OVERFLOW
#endif
/* True if __builtin_add_overflow_p (A, B, C) works, and similarly for
__builtin_sub_overflow_p and __builtin_mul_overflow_p. */
#if defined __clang__ || defined __ICC
/* Clang 11 lacks __builtin_mul_overflow_p, and even if it did it
would presumably run afoul of Clang bug 16404. ICC 2021.1's
__builtin_add_overflow_p etc. are not treated as integral constant
expressions even when all arguments are. */
# define _GL_HAS_BUILTIN_OVERFLOW_P 0
#elif defined __has_builtin
# define _GL_HAS_BUILTIN_OVERFLOW_P __has_builtin (__builtin_mul_overflow_p)
#else
# define _GL_HAS_BUILTIN_OVERFLOW_P (7 <= __GNUC__)
#endif
/* The _GL*_OVERFLOW macros have the same restrictions as the
*_RANGE_OVERFLOW macros, except that they do not assume that operands
@ -293,7 +309,9 @@ verify (TYPE_WIDTH (unsigned int) == UINT_WIDTH);
The INT_<op>_OVERFLOW macros return 1 if the corresponding C operators
might not yield numerically correct answers due to arithmetic overflow.
The INT_<op>_WRAPV macros also store the low-order bits of the answer.
The INT_<op>_WRAPV macros compute the low-order bits of the sum,
difference, and product of two C integers, and return 1 if these
low-order bits are not numerically correct.
These macros work correctly on all known practical hosts, and do not rely
on undefined behavior due to signed arithmetic overflow.
@ -321,9 +339,11 @@ verify (TYPE_WIDTH (unsigned int) == UINT_WIDTH);
arguments should not have side effects.
The WRAPV macros are not constant expressions. They support only
+, binary -, and *. The result type must be signed.
+, binary -, and *. Because the WRAPV macros convert the result,
they report overflow in different circumstances than the OVERFLOW
macros do.
These macros are tuned for their last argument being a constant.
These macros are tuned for their last input argument being a constant.
Return 1 if the integer expressions A * B, A - B, -A, A * B, A / B,
A % B, and A << B would overflow, respectively. */
@ -354,105 +374,257 @@ verify (TYPE_WIDTH (unsigned int) == UINT_WIDTH);
Arguments should be free of side effects. */
#define _GL_BINARY_OP_OVERFLOW(a, b, op_result_overflow) \
op_result_overflow (a, b, \
_GL_INT_MINIMUM (0 * (b) + (a)), \
_GL_INT_MAXIMUM (0 * (b) + (a)))
_GL_INT_MINIMUM (_GL_INT_CONVERT (a, b)), \
_GL_INT_MAXIMUM (_GL_INT_CONVERT (a, b)))
/* Store the low-order bits of A + B, A - B, A * B, respectively, into *R.
Return 1 if the result overflows. See above for restrictions. */
#define INT_ADD_WRAPV(a, b, r) \
_GL_INT_OP_WRAPV (a, b, r, +, __builtin_add_overflow, INT_ADD_OVERFLOW)
#define INT_SUBTRACT_WRAPV(a, b, r) \
_GL_INT_OP_WRAPV (a, b, r, -, __builtin_sub_overflow, INT_SUBTRACT_OVERFLOW)
#define INT_MULTIPLY_WRAPV(a, b, r) \
_GL_INT_OP_WRAPV (a, b, r, *, __builtin_mul_overflow, INT_MULTIPLY_OVERFLOW)
#if _GL_HAS_BUILTIN_ADD_OVERFLOW
# define INT_ADD_WRAPV(a, b, r) __builtin_add_overflow (a, b, r)
# define INT_SUBTRACT_WRAPV(a, b, r) __builtin_sub_overflow (a, b, r)
#else
# define INT_ADD_WRAPV(a, b, r) \
_GL_INT_OP_WRAPV (a, b, r, +, _GL_INT_ADD_RANGE_OVERFLOW)
# define INT_SUBTRACT_WRAPV(a, b, r) \
_GL_INT_OP_WRAPV (a, b, r, -, _GL_INT_SUBTRACT_RANGE_OVERFLOW)
#endif
#if _GL_HAS_BUILTIN_MUL_OVERFLOW
# if ((9 < __GNUC__ + (3 <= __GNUC_MINOR__) \
|| (__GNUC__ == 8 && 4 <= __GNUC_MINOR__)) \
&& !defined __ICC)
# define INT_MULTIPLY_WRAPV(a, b, r) __builtin_mul_overflow (a, b, r)
# else
/* Work around GCC bug 91450. */
# define INT_MULTIPLY_WRAPV(a, b, r) \
((!_GL_SIGNED_TYPE_OR_EXPR (*(r)) && EXPR_SIGNED (a) && EXPR_SIGNED (b) \
&& _GL_INT_MULTIPLY_RANGE_OVERFLOW (a, b, 0, (__typeof__ (*(r))) -1)) \
? ((void) __builtin_mul_overflow (a, b, r), 1) \
: __builtin_mul_overflow (a, b, r))
# endif
#else
# define INT_MULTIPLY_WRAPV(a, b, r) \
_GL_INT_OP_WRAPV (a, b, r, *, _GL_INT_MULTIPLY_RANGE_OVERFLOW)
#endif
/* Nonzero if this compiler has GCC bug 68193 or Clang bug 25390. See:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68193
https://llvm.org/bugs/show_bug.cgi?id=25390
For now, assume all versions of GCC-like compilers generate bogus
warnings for _Generic. This matters only for older compilers that
lack __builtin_add_overflow. */
#if __GNUC__
warnings for _Generic. This matters only for compilers that
lack relevant builtins. */
#if __GNUC__ || defined __clang__
# define _GL__GENERIC_BOGUS 1
#else
# define _GL__GENERIC_BOGUS 0
#endif
/* Store the low-order bits of A <op> B into *R, where OP specifies
the operation. BUILTIN is the builtin operation, and OVERFLOW the
overflow predicate. Return 1 if the result overflows. See above
for restrictions. */
#if _GL_HAS_BUILTIN_OVERFLOW
# define _GL_INT_OP_WRAPV(a, b, r, op, builtin, overflow) builtin (a, b, r)
#elif 201112 <= __STDC_VERSION__ && !_GL__GENERIC_BOGUS
# define _GL_INT_OP_WRAPV(a, b, r, op, builtin, overflow) \
the operation and OVERFLOW the overflow predicate. Return 1 if the
result overflows. See above for restrictions. */
#if 201112 <= __STDC_VERSION__ && !_GL__GENERIC_BOGUS
# define _GL_INT_OP_WRAPV(a, b, r, op, overflow) \
(_Generic \
(*(r), \
signed char: \
_GL_INT_OP_CALC (a, b, r, op, overflow, unsigned char, \
_GL_INT_OP_CALC (a, b, r, op, overflow, unsigned int, \
signed char, SCHAR_MIN, SCHAR_MAX), \
unsigned char: \
_GL_INT_OP_CALC (a, b, r, op, overflow, unsigned int, \
unsigned char, 0, UCHAR_MAX), \
short int: \
_GL_INT_OP_CALC (a, b, r, op, overflow, unsigned short int, \
_GL_INT_OP_CALC (a, b, r, op, overflow, unsigned int, \
short int, SHRT_MIN, SHRT_MAX), \
unsigned short int: \
_GL_INT_OP_CALC (a, b, r, op, overflow, unsigned int, \
unsigned short int, 0, USHRT_MAX), \
int: \
_GL_INT_OP_CALC (a, b, r, op, overflow, unsigned int, \
int, INT_MIN, INT_MAX), \
unsigned int: \
_GL_INT_OP_CALC (a, b, r, op, overflow, unsigned int, \
unsigned int, 0, UINT_MAX), \
long int: \
_GL_INT_OP_CALC (a, b, r, op, overflow, unsigned long int, \
long int, LONG_MIN, LONG_MAX), \
unsigned long int: \
_GL_INT_OP_CALC (a, b, r, op, overflow, unsigned long int, \
unsigned long int, 0, ULONG_MAX), \
long long int: \
_GL_INT_OP_CALC (a, b, r, op, overflow, unsigned long long int, \
long long int, LLONG_MIN, LLONG_MAX)))
long long int, LLONG_MIN, LLONG_MAX), \
unsigned long long int: \
_GL_INT_OP_CALC (a, b, r, op, overflow, unsigned long long int, \
unsigned long long int, 0, ULLONG_MAX)))
#else
# define _GL_INT_OP_WRAPV(a, b, r, op, builtin, overflow) \
/* Store the low-order bits of A <op> B into *R, where OP specifies
the operation and OVERFLOW the overflow predicate. If *R is
signed, its type is ST with bounds SMIN..SMAX; otherwise its type
is UT with bounds U..UMAX. ST and UT are narrower than int.
Return 1 if the result overflows. See above for restrictions. */
# if _GL_HAVE___TYPEOF__
# define _GL_INT_OP_WRAPV_SMALLISH(a,b,r,op,overflow,st,smin,smax,ut,umax) \
(TYPE_SIGNED (__typeof__ (*(r))) \
? _GL_INT_OP_CALC (a, b, r, op, overflow, unsigned int, st, smin, smax) \
: _GL_INT_OP_CALC (a, b, r, op, overflow, unsigned int, ut, 0, umax))
# else
# define _GL_INT_OP_WRAPV_SMALLISH(a,b,r,op,overflow,st,smin,smax,ut,umax) \
(overflow (a, b, smin, smax) \
? (overflow (a, b, 0, umax) \
? (*(r) = _GL_INT_OP_WRAPV_VIA_UNSIGNED (a,b,op,unsigned,st), 1) \
: (*(r) = _GL_INT_OP_WRAPV_VIA_UNSIGNED (a,b,op,unsigned,st)) < 0) \
: (overflow (a, b, 0, umax) \
? (*(r) = _GL_INT_OP_WRAPV_VIA_UNSIGNED (a,b,op,unsigned,st)) >= 0 \
: (*(r) = _GL_INT_OP_WRAPV_VIA_UNSIGNED (a,b,op,unsigned,st), 0)))
# endif
# define _GL_INT_OP_WRAPV(a, b, r, op, overflow) \
(sizeof *(r) == sizeof (signed char) \
? _GL_INT_OP_CALC (a, b, r, op, overflow, unsigned char, \
signed char, SCHAR_MIN, SCHAR_MAX) \
? _GL_INT_OP_WRAPV_SMALLISH (a, b, r, op, overflow, \
signed char, SCHAR_MIN, SCHAR_MAX, \
unsigned char, UCHAR_MAX) \
: sizeof *(r) == sizeof (short int) \
? _GL_INT_OP_CALC (a, b, r, op, overflow, unsigned short int, \
short int, SHRT_MIN, SHRT_MAX) \
? _GL_INT_OP_WRAPV_SMALLISH (a, b, r, op, overflow, \
short int, SHRT_MIN, SHRT_MAX, \
unsigned short int, USHRT_MAX) \
: sizeof *(r) == sizeof (int) \
? _GL_INT_OP_CALC (a, b, r, op, overflow, unsigned int, \
int, INT_MIN, INT_MAX) \
? (EXPR_SIGNED (*(r)) \
? _GL_INT_OP_CALC (a, b, r, op, overflow, unsigned int, \
int, INT_MIN, INT_MAX) \
: _GL_INT_OP_CALC (a, b, r, op, overflow, unsigned int, \
unsigned int, 0, UINT_MAX)) \
: _GL_INT_OP_WRAPV_LONGISH(a, b, r, op, overflow))
# ifdef LLONG_MAX
# define _GL_INT_OP_WRAPV_LONGISH(a, b, r, op, overflow) \
(sizeof *(r) == sizeof (long int) \
? _GL_INT_OP_CALC (a, b, r, op, overflow, unsigned long int, \
long int, LONG_MIN, LONG_MAX) \
: _GL_INT_OP_CALC (a, b, r, op, overflow, unsigned long long int, \
long long int, LLONG_MIN, LLONG_MAX))
? (EXPR_SIGNED (*(r)) \
? _GL_INT_OP_CALC (a, b, r, op, overflow, unsigned long int, \
long int, LONG_MIN, LONG_MAX) \
: _GL_INT_OP_CALC (a, b, r, op, overflow, unsigned long int, \
unsigned long int, 0, ULONG_MAX)) \
: (EXPR_SIGNED (*(r)) \
? _GL_INT_OP_CALC (a, b, r, op, overflow, unsigned long long int, \
long long int, LLONG_MIN, LLONG_MAX) \
: _GL_INT_OP_CALC (a, b, r, op, overflow, unsigned long long int, \
unsigned long long int, 0, ULLONG_MAX)))
# else
# define _GL_INT_OP_WRAPV_LONGISH(a, b, r, op, overflow) \
_GL_INT_OP_CALC (a, b, r, op, overflow, unsigned long int, \
long int, LONG_MIN, LONG_MAX)
(EXPR_SIGNED (*(r)) \
? _GL_INT_OP_CALC (a, b, r, op, overflow, unsigned long int, \
long int, LONG_MIN, LONG_MAX) \
: _GL_INT_OP_CALC (a, b, r, op, overflow, unsigned long int, \
unsigned long int, 0, ULONG_MAX))
# endif
#endif
/* Store the low-order bits of A <op> B into *R, where the operation
is given by OP. Use the unsigned type UT for calculation to avoid
overflow problems. *R's type is T, with extremal values TMIN and
TMAX. T must be a signed integer type. Return 1 if the result
overflows. */
overflow problems. *R's type is T, with extrema TMIN and TMAX.
T must be a signed integer type. Return 1 if the result overflows. */
#define _GL_INT_OP_CALC(a, b, r, op, overflow, ut, t, tmin, tmax) \
(sizeof ((a) op (b)) < sizeof (t) \
? _GL_INT_OP_CALC1 ((t) (a), (t) (b), r, op, overflow, ut, t, tmin, tmax) \
: _GL_INT_OP_CALC1 (a, b, r, op, overflow, ut, t, tmin, tmax))
#define _GL_INT_OP_CALC1(a, b, r, op, overflow, ut, t, tmin, tmax) \
((overflow (a, b) \
|| (EXPR_SIGNED ((a) op (b)) && ((a) op (b)) < (tmin)) \
|| (tmax) < ((a) op (b))) \
? (*(r) = _GL_INT_OP_WRAPV_VIA_UNSIGNED (a, b, op, ut, t, tmin, tmax), 1) \
: (*(r) = _GL_INT_OP_WRAPV_VIA_UNSIGNED (a, b, op, ut, t, tmin, tmax), 0))
(overflow (a, b, tmin, tmax) \
? (*(r) = _GL_INT_OP_WRAPV_VIA_UNSIGNED (a, b, op, ut, t), 1) \
: (*(r) = _GL_INT_OP_WRAPV_VIA_UNSIGNED (a, b, op, ut, t), 0))
/* Return A <op> B, where the operation is given by OP. Use the
unsigned type UT for calculation to avoid overflow problems.
Convert the result to type T without overflow by subtracting TMIN
from large values before converting, and adding it afterwards.
Compilers can optimize all the operations except OP. */
#define _GL_INT_OP_WRAPV_VIA_UNSIGNED(a, b, op, ut, t, tmin, tmax) \
(((ut) (a) op (ut) (b)) <= (tmax) \
? (t) ((ut) (a) op (ut) (b)) \
: ((t) (((ut) (a) op (ut) (b)) - (tmin)) + (tmin)))
/* Return the low-order bits of A <op> B, where the operation is given
by OP. Use the unsigned type UT for calculation to avoid undefined
behavior on signed integer overflow, and convert the result to type T.
UT is at least as wide as T and is no narrower than unsigned int,
T is two's complement, and there is no padding or trap representations.
Assume that converting UT to T yields the low-order bits, as is
done in all known two's-complement C compilers. E.g., see:
https://gcc.gnu.org/onlinedocs/gcc/Integers-implementation.html
According to the C standard, converting UT to T yields an
implementation-defined result or signal for values outside T's
range. However, code that works around this theoretical problem
runs afoul of a compiler bug in Oracle Studio 12.3 x86. See:
https://lists.gnu.org/r/bug-gnulib/2017-04/msg00049.html
As the compiler bug is real, don't try to work around the
theoretical problem. */
#define _GL_INT_OP_WRAPV_VIA_UNSIGNED(a, b, op, ut, t) \
((t) ((ut) (a) op (ut) (b)))
/* Return true if the numeric values A + B, A - B, A * B fall outside
the range TMIN..TMAX. Arguments should be integer expressions
without side effects. TMIN should be signed and nonpositive.
TMAX should be positive, and should be signed unless TMIN is zero. */
#define _GL_INT_ADD_RANGE_OVERFLOW(a, b, tmin, tmax) \
((b) < 0 \
? (((tmin) \
? ((EXPR_SIGNED (_GL_INT_CONVERT (a, (tmin) - (b))) || (b) < (tmin)) \
&& (a) < (tmin) - (b)) \
: (a) <= -1 - (b)) \
|| ((EXPR_SIGNED (a) ? 0 <= (a) : (tmax) < (a)) && (tmax) < (a) + (b))) \
: (a) < 0 \
? (((tmin) \
? ((EXPR_SIGNED (_GL_INT_CONVERT (b, (tmin) - (a))) || (a) < (tmin)) \
&& (b) < (tmin) - (a)) \
: (b) <= -1 - (a)) \
|| ((EXPR_SIGNED (_GL_INT_CONVERT (a, b)) || (tmax) < (b)) \
&& (tmax) < (a) + (b))) \
: (tmax) < (b) || (tmax) - (b) < (a))
#define _GL_INT_SUBTRACT_RANGE_OVERFLOW(a, b, tmin, tmax) \
(((a) < 0) == ((b) < 0) \
? ((a) < (b) \
? !(tmin) || -1 - (tmin) < (b) - (a) - 1 \
: (tmax) < (a) - (b)) \
: (a) < 0 \
? ((!EXPR_SIGNED (_GL_INT_CONVERT ((a) - (tmin), b)) && (a) - (tmin) < 0) \
|| (a) - (tmin) < (b)) \
: ((! (EXPR_SIGNED (_GL_INT_CONVERT (tmax, b)) \
&& EXPR_SIGNED (_GL_INT_CONVERT ((tmax) + (b), a))) \
&& (tmax) <= -1 - (b)) \
|| (tmax) + (b) < (a)))
#define _GL_INT_MULTIPLY_RANGE_OVERFLOW(a, b, tmin, tmax) \
((b) < 0 \
? ((a) < 0 \
? (EXPR_SIGNED (_GL_INT_CONVERT (tmax, b)) \
? (a) < (tmax) / (b) \
: ((INT_NEGATE_OVERFLOW (b) \
? _GL_INT_CONVERT (b, tmax) >> (TYPE_WIDTH (+ (b)) - 1) \
: (tmax) / -(b)) \
<= -1 - (a))) \
: INT_NEGATE_OVERFLOW (_GL_INT_CONVERT (b, tmin)) && (b) == -1 \
? (EXPR_SIGNED (a) \
? 0 < (a) + (tmin) \
: 0 < (a) && -1 - (tmin) < (a) - 1) \
: (tmin) / (b) < (a)) \
: (b) == 0 \
? 0 \
: ((a) < 0 \
? (INT_NEGATE_OVERFLOW (_GL_INT_CONVERT (a, tmin)) && (a) == -1 \
? (EXPR_SIGNED (b) ? 0 < (b) + (tmin) : -1 - (tmin) < (b) - 1) \
: (tmin) / (a) < (b)) \
: (tmax) / (b) < (a)))
/* The following macros compute A + B, A - B, and A * B, respectively.
If no overflow occurs, they set *R to the result and return 1;
otherwise, they return 0 and may modify *R.
Example usage:
long int result;
if (INT_ADD_OK (a, b, &result))
printf ("result is %ld\n", result);
else
printf ("overflow\n");
A, B, and *R should be integers; they need not be the same type,
and they need not be all signed or all unsigned.
These macros work correctly on all known practical hosts, and do not rely
on undefined behavior due to signed arithmetic overflow.
These macros are not constant expressions.
These macros may evaluate their arguments zero or multiple times, so the
arguments should not have side effects.
These macros are tuned for B being a constant. */
#define INT_ADD_OK(a, b, r) ! INT_ADD_WRAPV (a, b, r)
#define INT_SUBTRACT_OK(a, b, r) ! INT_SUBTRACT_WRAPV (a, b, r)
#define INT_MULTIPLY_OK(a, b, r) ! INT_MULTIPLY_WRAPV (a, b, r)
#endif /* _GL_INTPROPS_H */

1002
lib/inttypes.in.h Normal file
View file

File diff suppressed because it is too large Load diff

4
lib/isfinite.c
View file

@ -1,5 +1,5 @@
/* Test for finite value (zero, subnormal, or normal, and not infinite or NaN).
Copyright (C) 2007-2017 Free Software Foundation, Inc.
Copyright (C) 2007-2021 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -12,7 +12,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, see <http://www.gnu.org/licenses/>. */
with this program; if not, see <https://www.gnu.org/licenses/>. */
/* Written by Ben Pfaff <blp@gnu.org>, 2007. */

4
lib/isinf.c
View file

@ -1,5 +1,5 @@
/* Test for positive or negative infinity.
Copyright (C) 2007-2017 Free Software Foundation, Inc.
Copyright (C) 2007-2021 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -12,7 +12,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, see <http://www.gnu.org/licenses/>. */
with this program; if not, see <https://www.gnu.org/licenses/>. */
/* Written by Ben Pfaff <blp@gnu.org>, 2008. */

4
lib/isnan.c
View file

@ -1,5 +1,5 @@
/* Test for NaN that does not need libm.
Copyright (C) 2007-2017 Free Software Foundation, Inc.
Copyright (C) 2007-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -12,7 +12,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Bruno Haible <bruno@clisp.org>, 2007. */

8
lib/isnand-nolibm.h
View file

@ -1,5 +1,5 @@
/* Test for NaN that does not need libm.
Copyright (C) 2007-2017 Free Software Foundation, Inc.
Copyright (C) 2007-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -12,13 +12,13 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#if HAVE_ISNAND_IN_LIBC
/* Get declaration of isnan macro. */
# include <math.h>
# if __GNUC__ >= 4
/* GCC 4.0 and newer provides three built-ins for isnan. */
# if (__GNUC__ >= 4) || (__clang_major__ >= 4)
/* GCC >= 4.0 and clang provide a type-generic built-in for isnan. */
# undef isnand
# define isnand(x) __builtin_isnan ((double)(x))
# else

4
lib/isnand.c
View file

@ -1,5 +1,5 @@
/* Test for NaN that does not need libm.
Copyright (C) 2008-2017 Free Software Foundation, Inc.
Copyright (C) 2008-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -12,7 +12,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Bruno Haible <bruno@clisp.org>, 2008. */

11
lib/isnanf-nolibm.h
View file

@ -1,5 +1,5 @@
/* Test for NaN that does not need libm.
Copyright (C) 2007-2017 Free Software Foundation, Inc.
Copyright (C) 2007-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -12,15 +12,16 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#if HAVE_ISNANF_IN_LIBC
/* Get declaration of isnan macro or (older) isnanf function. */
# include <math.h>
# if __GNUC__ >= 4
/* GCC 4.0 and newer provides three built-ins for isnan. */
# if (__GNUC__ >= 4) || (__clang_major__ >= 4)
/* GCC >= 4.0 and clang provide a type-generic built-in for isnan.
GCC >= 4.0 also provides __builtin_isnanf, but clang doesn't. */
# undef isnanf
# define isnanf(x) __builtin_isnanf ((float)(x))
# define isnanf(x) __builtin_isnan ((float)(x))
# elif defined isnan
# undef isnanf
# define isnanf(x) isnan ((float)(x))

4
lib/isnanf.c
View file

@ -1,5 +1,5 @@
/* Test for NaN that does not need libm.
Copyright (C) 2007, 2009-2017 Free Software Foundation, Inc.
Copyright (C) 2007, 2009-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -12,7 +12,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Bruno Haible <bruno@clisp.org>, 2007. */

11
lib/isnanl-nolibm.h
View file

@ -1,5 +1,5 @@
/* Test for NaN that does not need libm.
Copyright (C) 2007-2017 Free Software Foundation, Inc.
Copyright (C) 2007-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -12,15 +12,16 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#if HAVE_ISNANL_IN_LIBC
/* Get declaration of isnan macro or (older) isnanl function. */
# include <math.h>
# if __GNUC__ >= 4
/* GCC 4.0 and newer provides three built-ins for isnan. */
# if (__GNUC__ >= 4) || (__clang_major__ >= 4)
/* GCC >= 4.0 and clang provide a type-generic built-in for isnan.
GCC >= 4.0 also provides __builtin_isnanl, but clang doesn't. */
# undef isnanl
# define isnanl(x) __builtin_isnanl ((long double)(x))
# define isnanl(x) __builtin_isnan ((long double)(x))
# elif defined isnan
# undef isnanl
# define isnanl(x) isnan ((long double)(x))

4
lib/isnanl.c
View file

@ -1,5 +1,5 @@
/* Test for NaN that does not need libm.
Copyright (C) 2007, 2009-2017 Free Software Foundation, Inc.
Copyright (C) 2007, 2009-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@ -12,7 +12,7 @@
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Bruno Haible <bruno@clisp.org>, 2007. */

Some files were not shown because too many files have changed in this diff Show more