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guile/libguile/posix.c
Gary Houston 67ec36676e * ioext.c (scm_setfileno): throw a runtime error if SET_FILE_FD_FIELD
wan't defined.  Don't include fd.h.

* Previously fd.h was regenerated whenever configure was run,
forcing a couple of files to be recompiled.

* fd.h.in: deleted, SET_FILE_FD_FIELD moved to ioext.c.
* configure.in: AC_DEFINE FD_SETTER instead of HAVE_FD_SETTER.
Check for _fileno as well as _file.
Don't output fd.h.
* ioext.c: don't fd.h.
* acconfig.h: remove duplicate HAVE_FD_SETTER and change the
other to FD_SETTER.

* Change the stratigy for getting information about errno
(and now signal number) values, e.g., ENOSYS, SIGKILL.  Instead of
generating lists of symbols during the build process, which will
not always work, include comprehensive lists in the distribution.
To help keep the lists up to date, the "check_signals" and
"check_errnos" make targets can be used.

* configure.in: don't check for a command to extract errno codes.
* Makefile.am: update file lists, remove errnos.list and errnos.c
targets, add cpp_err_symbols.c, cpp_sig_symbols.c, check_signals,
check_errnos targets.
(CLEANFILES): remove errnos.c and errnos.list, add
cpp_err_symbols_here cpp_err_symbols_diff cpp_err_symbols_new
cpp_sig_symbols_here cpp_sig_symbols_diff cpp_sig_symbols_new
* errnos.default: deleted.
* cpp_signal.c: new file.
* cpp_errno.c: renamed from errnos_get.c.
* cpp_err_symbols, cpp_sig_symbols: new files.
* cpp_cnvt.awk: renamed from errnos_cnvt_awk.
* error.c (scm_init_error): #include cpp_err_symbols instead of
errnos.c.
* posix.c (scm_init_posix): don't intern signal symbols.  #include
cpp_sig_symbols.c.
* strop.c (scm_i_index): allow the lower bound to be equal to the
length of the string, so a null string doesn't always give an error.

* posix.h: new prototypes.
* posix.c (scm_status_exit_val, scm_status_term_sig,
scm_status_stop_sig): new functions, as in scsh.  They break down
process status values as returned by waitpid.
1997-03-29 18:42:43 +00:00

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/* Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*
* As a special exception, the Free Software Foundation gives permission
* for additional uses of the text contained in its release of GUILE.
*
* The exception is that, if you link the GUILE library with other files
* to produce an executable, this does not by itself cause the
* resulting executable to be covered by the GNU General Public License.
* Your use of that executable is in no way restricted on account of
* linking the GUILE library code into it.
*
* This exception does not however invalidate any other reasons why
* the executable file might be covered by the GNU General Public License.
*
* This exception applies only to the code released by the
* Free Software Foundation under the name GUILE. If you copy
* code from other Free Software Foundation releases into a copy of
* GUILE, as the General Public License permits, the exception does
* not apply to the code that you add in this way. To avoid misleading
* anyone as to the status of such modified files, you must delete
* this exception notice from them.
*
* If you write modifications of your own for GUILE, it is your choice
* whether to permit this exception to apply to your modifications.
* If you do not wish that, delete this exception notice.
*/
#include <stdio.h>
#include "_scm.h"
#include "fports.h"
#include "scmsigs.h"
#include "feature.h"
#include "sequences.h"
#include "posix.h"
#ifdef HAVE_STRING_H
#include <string.h>
#endif
#ifdef TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>
#else
# if HAVE_SYS_TIME_H
# include <sys/time.h>
# else
# include <time.h>
# endif
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#else
#ifndef ttyname
extern char *ttyname();
#endif
#endif
#ifdef LIBC_H_WITH_UNISTD_H
#include <libc.h>
#endif
#ifdef HAVE_SYS_SELECT_H
#include <sys/select.h>
#endif
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <pwd.h>
#if HAVE_SYS_WAIT_H
# include <sys/wait.h>
#endif
#ifndef WEXITSTATUS
# define WEXITSTATUS(stat_val) ((unsigned)(stat_val) >> 8)
#endif
#ifndef WIFEXITED
# define WIFEXITED(stat_val) (((stat_val) & 255) == 0)
#endif
#include <signal.h>
#ifdef FD_SET
#define SELECT_TYPE fd_set
#define SELECT_SET_SIZE FD_SETSIZE
#else /* no FD_SET */
/* Define the macros to access a single-int bitmap of descriptors. */
#define SELECT_SET_SIZE 32
#define SELECT_TYPE int
#define FD_SET(n, p) (*(p) |= (1 << (n)))
#define FD_CLR(n, p) (*(p) &= ~(1 << (n)))
#define FD_ISSET(n, p) (*(p) & (1 << (n)))
#define FD_ZERO(p) (*(p) = 0)
#endif /* no FD_SET */
extern FILE *popen ();
extern char ** environ;
#include <grp.h>
#include <sys/utsname.h>
#if HAVE_DIRENT_H
# include <dirent.h>
# define NAMLEN(dirent) strlen((dirent)->d_name)
#else
# define dirent direct
# define NAMLEN(dirent) (dirent)->d_namlen
# if HAVE_SYS_NDIR_H
# include <sys/ndir.h>
# endif
# if HAVE_SYS_DIR_H
# include <sys/dir.h>
# endif
# if HAVE_NDIR_H
# include <ndir.h>
# endif
#endif
char *strptime ();
#ifdef HAVE_SETLOCALE
#include <locale.h>
#endif
/* Some Unix systems don't define these. CPP hair is dangerous, but
this seems safe enough... */
#ifndef R_OK
#define R_OK 4
#endif
#ifndef W_OK
#define W_OK 2
#endif
#ifndef X_OK
#define X_OK 1
#endif
#ifndef F_OK
#define F_OK 0
#endif
/* On NextStep, <utime.h> doesn't define struct utime, unless we
#define _POSIX_SOURCE before #including it. I think this is less
of a kludge than defining struct utimbuf ourselves. */
#ifdef UTIMBUF_NEEDS_POSIX
#define _POSIX_SOURCE
#endif
#ifdef HAVE_SYS_UTIME_H
#include <sys/utime.h>
#endif
#ifdef HAVE_UTIME_H
#include <utime.h>
#endif
/* Please don't add any more #includes or #defines here. The hack
above means that _POSIX_SOURCE may be #defined, which will
encourage header files to do strange things. */
SCM_PROC (s_pipe, "pipe", 0, 0, 0, scm_pipe);
SCM
scm_pipe ()
{
int fd[2], rv;
FILE *f_rd, *f_wt;
SCM p_rd, p_wt;
struct scm_port_table * ptr;
struct scm_port_table * ptw;
SCM_NEWCELL (p_rd);
SCM_NEWCELL (p_wt);
rv = pipe (fd);
if (rv)
scm_syserror (s_pipe);
f_rd = fdopen (fd[0], "r");
if (!f_rd)
{
SCM_SYSCALL (close (fd[0]));
SCM_SYSCALL (close (fd[1]));
scm_syserror (s_pipe);
}
f_wt = fdopen (fd[1], "w");
if (!f_wt)
{
int en;
en = errno;
fclose (f_rd);
SCM_SYSCALL (close (fd[1]));
errno = en;
scm_syserror (s_pipe);
}
ptr = scm_add_to_port_table (p_rd);
ptw = scm_add_to_port_table (p_wt);
SCM_SETPTAB_ENTRY (p_rd, ptr);
SCM_SETPTAB_ENTRY (p_wt, ptw);
SCM_SETCAR (p_rd, scm_tc16_fport | scm_mode_bits ("r"));
SCM_SETCAR (p_wt, scm_tc16_fport | scm_mode_bits ("w"));
SCM_SETSTREAM (p_rd, (SCM)f_rd);
SCM_SETSTREAM (p_wt, (SCM)f_wt);
SCM_ALLOW_INTS;
return scm_cons (p_rd, p_wt);
}
SCM_PROC (s_getgroups, "getgroups", 0, 0, 0, scm_getgroups);
SCM
scm_getgroups()
{
SCM grps, ans;
int ngroups = getgroups (0, NULL);
if (!ngroups)
scm_syserror (s_getgroups);
SCM_NEWCELL(grps);
SCM_DEFER_INTS;
{
GETGROUPS_T *groups;
int val;
groups = (GETGROUPS_T *) scm_must_malloc(ngroups * sizeof(GETGROUPS_T),
s_getgroups);
val = getgroups(ngroups, groups);
if (val < 0)
{
scm_must_free((char *)groups);
scm_syserror (s_getgroups);
}
SCM_SETCHARS(grps, groups); /* set up grps as a GC protect */
SCM_SETLENGTH(grps, 0L + ngroups * sizeof(GETGROUPS_T), scm_tc7_string);
SCM_ALLOW_INTS;
ans = scm_make_vector(SCM_MAKINUM(ngroups), SCM_UNDEFINED, SCM_BOOL_F);
while (--ngroups >= 0) SCM_VELTS(ans)[ngroups] = SCM_MAKINUM(groups[ngroups]);
SCM_SETCHARS(grps, groups); /* to make sure grps stays around. */
return ans;
}
}
SCM_PROC (s_getpwuid, "getpw", 0, 1, 0, scm_getpwuid);
SCM
scm_getpwuid (user)
SCM user;
{
SCM result;
struct passwd *entry;
SCM *ve;
result = scm_make_vector (SCM_MAKINUM (7), SCM_UNSPECIFIED, SCM_BOOL_F);
ve = SCM_VELTS (result);
if (SCM_UNBNDP (user) || SCM_FALSEP (user))
{
SCM_DEFER_INTS;
SCM_SYSCALL (entry = getpwent ());
}
else if (SCM_INUMP (user))
{
SCM_DEFER_INTS;
entry = getpwuid (SCM_INUM (user));
}
else
{
SCM_ASSERT (SCM_NIMP (user) && SCM_ROSTRINGP (user), user, SCM_ARG1, s_getpwuid);
if (SCM_SUBSTRP (user))
user = scm_makfromstr (SCM_ROCHARS (user), SCM_ROLENGTH (user), 0);
SCM_DEFER_INTS;
entry = getpwnam (SCM_ROCHARS (user));
}
if (!entry)
scm_syserror (s_getpwuid);
ve[0] = scm_makfrom0str (entry->pw_name);
ve[1] = scm_makfrom0str (entry->pw_passwd);
ve[2] = scm_ulong2num ((unsigned long) entry->pw_uid);
ve[3] = scm_ulong2num ((unsigned long) entry->pw_gid);
ve[4] = scm_makfrom0str (entry->pw_gecos);
if (!entry->pw_dir)
ve[5] = scm_makfrom0str ("");
else
ve[5] = scm_makfrom0str (entry->pw_dir);
if (!entry->pw_shell)
ve[6] = scm_makfrom0str ("");
else
ve[6] = scm_makfrom0str (entry->pw_shell);
SCM_ALLOW_INTS;
return result;
}
SCM_PROC (s_setpwent, "setpw", 0, 1, 0, scm_setpwent);
SCM
scm_setpwent (arg)
SCM arg;
{
if (SCM_UNBNDP (arg) || SCM_FALSEP (arg))
endpwent ();
else
setpwent ();
return SCM_UNSPECIFIED;
}
/* Combines getgrgid and getgrnam. */
SCM_PROC (s_getgrgid, "getgr", 0, 1, 0, scm_getgrgid);
SCM
scm_getgrgid (name)
SCM name;
{
SCM result;
struct group *entry;
SCM *ve;
result = scm_make_vector (SCM_MAKINUM (4), SCM_UNSPECIFIED, SCM_BOOL_F);
ve = SCM_VELTS (result);
SCM_DEFER_INTS;
if (SCM_UNBNDP (name) || (name == SCM_BOOL_F))
SCM_SYSCALL (entry = getgrent ());
else if (SCM_INUMP (name))
SCM_SYSCALL (entry = getgrgid (SCM_INUM (name)));
else
{
SCM_ASSERT (SCM_NIMP (name) && SCM_ROSTRINGP (name), name, SCM_ARG1,
s_getgrgid);
SCM_SYSCALL (entry = getgrnam (SCM_ROCHARS (name)));
}
if (!entry)
scm_syserror (s_getgrgid);
ve[0] = scm_makfrom0str (entry->gr_name);
ve[1] = scm_makfrom0str (entry->gr_passwd);
ve[2] = scm_ulong2num ((unsigned long) entry->gr_gid);
ve[3] = scm_makfromstrs (-1, entry->gr_mem);
SCM_ALLOW_INTS;
return result;
}
SCM_PROC (s_setgrent, "setgr", 0, 1, 0, scm_setgrent);
SCM
scm_setgrent (arg)
SCM arg;
{
if (SCM_UNBNDP (arg) || SCM_FALSEP (arg))
endgrent ();
else
setgrent ();
return SCM_UNSPECIFIED;
}
SCM_PROC (s_kill, "kill", 2, 0, 0, scm_kill);
SCM
scm_kill (pid, sig)
SCM pid;
SCM sig;
{
SCM_ASSERT (SCM_INUMP (pid), pid, SCM_ARG1, s_kill);
SCM_ASSERT (SCM_INUMP (sig), sig, SCM_ARG2, s_kill);
/* Signal values are interned in scm_init_posix(). */
if (kill ((int) SCM_INUM (pid), (int) SCM_INUM (sig)) != 0)
scm_syserror (s_kill);
return SCM_UNSPECIFIED;
}
SCM_PROC (s_waitpid, "waitpid", 1, 1, 0, scm_waitpid);
SCM
scm_waitpid (pid, options)
SCM pid;
SCM options;
{
#ifdef HAVE_WAITPID
int i;
int status;
int ioptions;
SCM_ASSERT (SCM_INUMP (pid), pid, SCM_ARG1, s_waitpid);
if (SCM_UNBNDP (options))
ioptions = 0;
else
{
SCM_ASSERT (SCM_INUMP (options), options, SCM_ARG2, s_waitpid);
/* Flags are interned in scm_init_posix. */
ioptions = SCM_INUM (options);
}
SCM_SYSCALL (i = waitpid (SCM_INUM (pid), &status, ioptions));
if (i == -1)
scm_syserror (s_waitpid);
return scm_cons (SCM_MAKINUM (0L + i), SCM_MAKINUM (0L + status));
#else
scm_sysmissing (s_waitpid);
/* not reached. */
return SCM_BOOL_F;
#endif
}
SCM_PROC (s_status_exit_val, "status:exit-val", 1, 0, 0, scm_status_exit_val);
SCM
scm_status_exit_val (status)
SCM status;
{
SCM_ASSERT (SCM_INUMP (status), status, SCM_ARG1,s_status_exit_val);
if (WIFEXITED (SCM_INUM (status)))
return (SCM_MAKINUM (WEXITSTATUS (SCM_INUM (status))));
else
return SCM_BOOL_F;
}
SCM_PROC (s_status_term_sig, "status:term-sig", 1, 0, 0, scm_status_term_sig);
SCM
scm_status_term_sig (status)
SCM status;
{
SCM_ASSERT (SCM_INUMP (status), status, SCM_ARG1,s_status_term_sig);
if (WIFSIGNALED (SCM_INUM (status)))
return SCM_MAKINUM (WTERMSIG (SCM_INUM (status)));
else
return SCM_BOOL_F;
}
SCM_PROC (s_status_stop_sig, "status:stop-sig", 1, 0, 0, scm_status_stop_sig);
SCM
scm_status_stop_sig (status)
SCM status;
{
SCM_ASSERT (SCM_INUMP (status), status, SCM_ARG1,s_status_stop_sig);
if (WIFSTOPPED (SCM_INUM (status)))
return SCM_MAKINUM (WSTOPSIG (SCM_INUM (status)));
else
return SCM_BOOL_F;
}
SCM_PROC (s_getppid, "getppid", 0, 0, 0, scm_getppid);
SCM
scm_getppid ()
{
return SCM_MAKINUM (0L + getppid ());
}
SCM_PROC (s_getuid, "getuid", 0, 0, 0, scm_getuid);
SCM
scm_getuid ()
{
return SCM_MAKINUM (0L + getuid ());
}
SCM_PROC (s_getgid, "getgid", 0, 0, 0, scm_getgid);
SCM
scm_getgid ()
{
return SCM_MAKINUM (0L + getgid ());
}
SCM_PROC (s_geteuid, "geteuid", 0, 0, 0, scm_geteuid);
SCM
scm_geteuid ()
{
#ifdef HAVE_GETEUID
return SCM_MAKINUM (0L + geteuid ());
#else
return SCM_MAKINUM (0L + getuid ());
#endif
}
SCM_PROC (s_getegid, "getegid", 0, 0, 0, scm_getegid);
SCM
scm_getegid ()
{
#ifdef HAVE_GETEUID
return SCM_MAKINUM (0L + getegid ());
#else
return SCM_MAKINUM (0L + getgid ());
#endif
}
SCM_PROC (s_setuid, "setuid", 1, 0, 0, scm_setuid);
SCM
scm_setuid (id)
SCM id;
{
SCM_ASSERT (SCM_INUMP (id), id, SCM_ARG1, s_setuid);
if (setuid (SCM_INUM (id)) != 0)
scm_syserror (s_setuid);
return SCM_UNSPECIFIED;
}
SCM_PROC (s_setgid, "setgid", 1, 0, 0, scm_setgid);
SCM
scm_setgid (id)
SCM id;
{
SCM_ASSERT (SCM_INUMP (id), id, SCM_ARG1, s_setgid);
if (setgid (SCM_INUM (id)) != 0)
scm_syserror (s_setgid);
return SCM_UNSPECIFIED;
}
SCM_PROC (s_seteuid, "seteuid", 1, 0, 0, scm_seteuid);
SCM
scm_seteuid (id)
SCM id;
{
int rv;
SCM_ASSERT (SCM_INUMP (id), id, SCM_ARG1, s_seteuid);
#ifdef HAVE_SETEUID
rv = seteuid (SCM_INUM (id));
#else
rv = setuid (SCM_INUM (id));
#endif
if (rv != 0)
scm_syserror (s_seteuid);
return SCM_UNSPECIFIED;
}
SCM_PROC (s_setegid, "setegid", 1, 0, 0, scm_setegid);
SCM
scm_setegid (id)
SCM id;
{
int rv;
SCM_ASSERT (SCM_INUMP (id), id, SCM_ARG1, s_setegid);
#ifdef HAVE_SETEUID
rv = setegid (SCM_INUM (id));
#else
rv = setgid (SCM_INUM (id));
#endif
if (rv != 0)
scm_syserror (s_setegid);
return SCM_UNSPECIFIED;
}
SCM_PROC (s_getpgrp, "getpgrp", 0, 0, 0, scm_getpgrp);
SCM
scm_getpgrp ()
{
int (*fn)();
fn = (int (*) ()) getpgrp;
return SCM_MAKINUM (fn (0));
}
SCM_PROC (s_setpgid, "setpgid", 2, 0, 0, scm_setpgid);
SCM
scm_setpgid (pid, pgid)
SCM pid, pgid;
{
#ifdef HAVE_SETPGID
SCM_ASSERT (SCM_INUMP (pid), pid, SCM_ARG1, s_setpgid);
SCM_ASSERT (SCM_INUMP (pgid), pgid, SCM_ARG2, s_setpgid);
/* FIXME(?): may be known as setpgrp. */
if (setpgid (SCM_INUM (pid), SCM_INUM (pgid)) != 0)
scm_syserror (s_setpgid);
return SCM_UNSPECIFIED;
#else
scm_sysmissing (s_setpgid);
/* not reached. */
return SCM_BOOL_F;
#endif
}
SCM_PROC (s_setsid, "setsid", 0, 0, 0, scm_setsid);
SCM
scm_setsid ()
{
#ifdef HAVE_SETSID
pid_t sid = setsid ();
if (sid == -1)
scm_syserror (s_setsid);
return SCM_UNSPECIFIED;
#else
scm_sysmissing (s_setsid);
/* not reached. */
return SCM_BOOL_F;
#endif
}
SCM_PROC (s_ttyname, "ttyname", 1, 0, 0, scm_ttyname);
SCM
scm_ttyname (port)
SCM port;
{
char *ans;
int fd;
SCM_ASSERT (SCM_NIMP (port) && SCM_OPPORTP (port), port, SCM_ARG1, s_ttyname);
if (scm_tc16_fport != SCM_TYP16 (port))
return SCM_BOOL_F;
fd = fileno ((FILE *)SCM_STREAM (port));
if (fd == -1)
scm_syserror (s_ttyname);
SCM_SYSCALL (ans = ttyname (fd));
if (!ans)
scm_syserror (s_ttyname);
/* ans could be overwritten by another call to ttyname */
return (scm_makfrom0str (ans));
}
SCM_PROC (s_ctermid, "ctermid", 0, 0, 0, scm_ctermid);
SCM
scm_ctermid ()
{
#ifdef HAVE_CTERMID
char *result = ctermid (NULL);
if (*result == '\0')
scm_syserror (s_ctermid);
return scm_makfrom0str (result);
#else
scm_sysmissing (s_ctermid);
/* not reached. */
return SCM_BOOL_F;
#endif
}
SCM_PROC (s_tcgetpgrp, "tcgetpgrp", 1, 0, 0, scm_tcgetpgrp);
SCM
scm_tcgetpgrp (port)
SCM port;
{
#ifdef HAVE_TCGETPGRP
int fd;
pid_t pgid;
SCM_ASSERT (SCM_NIMP (port) && SCM_OPFPORTP (port), port, SCM_ARG1, s_tcgetpgrp);
fd = fileno ((FILE *)SCM_STREAM (port));
if (fd == -1 || (pgid = tcgetpgrp (fd)) == -1)
scm_syserror (s_tcgetpgrp);
return SCM_MAKINUM (pgid);
#else
scm_sysmissing (s_tcgetpgrp);
/* not reached. */
return SCM_BOOL_F;
#endif
}
SCM_PROC (s_tcsetpgrp, "tcsetpgrp", 2, 0, 0, scm_tcsetpgrp);
SCM
scm_tcsetpgrp (port, pgid)
SCM port, pgid;
{
#ifdef HAVE_TCSETPGRP
int fd;
SCM_ASSERT (SCM_NIMP (port) && SCM_OPFPORTP (port), port, SCM_ARG1, s_tcsetpgrp);
SCM_ASSERT (SCM_INUMP (pgid), pgid, SCM_ARG2, s_tcsetpgrp);
fd = fileno ((FILE *)SCM_STREAM (port));
if (fd == -1 || tcsetpgrp (fd, SCM_INUM (pgid)) == -1)
scm_syserror (s_tcsetpgrp);
return SCM_UNSPECIFIED;
#else
scm_sysmissing (s_tcsetpgrp);
/* not reached. */
return SCM_BOOL_F;
#endif
}
/* Copy exec args from an SCM vector into a new C array. */
static char ** scm_convert_exec_args SCM_P ((SCM args));
static char **
scm_convert_exec_args (args)
SCM args;
{
char **execargv;
int num_args;
int i;
SCM_DEFER_INTS;
num_args = scm_ilength (args);
execargv = (char **)
scm_must_malloc ((num_args + 1) * sizeof (char *), s_ttyname);
for (i = 0; SCM_NNULLP (args); args = SCM_CDR (args), ++i)
{
scm_sizet len;
char *dst;
char *src;
SCM_ASSERT (SCM_NIMP (SCM_CAR (args)) && SCM_ROSTRINGP (SCM_CAR (args)),
SCM_CAR (args), "wrong type in SCM_ARG", "exec arg");
len = 1 + SCM_ROLENGTH (SCM_CAR (args));
dst = (char *) scm_must_malloc ((long) len, s_ttyname);
src = SCM_ROCHARS (SCM_CAR (args));
while (len--)
dst[len] = src[len];
execargv[i] = dst;
}
execargv[i] = 0;
SCM_ALLOW_INTS;
return execargv;
}
SCM_PROC (s_execl, "execl", 0, 0, 1, scm_execl);
SCM
scm_execl (args)
SCM args;
{
char **execargv;
SCM filename = SCM_CAR (args);
SCM_ASSERT (SCM_NIMP (filename) && SCM_ROSTRINGP (filename), filename, SCM_ARG1, s_execl);
if (SCM_SUBSTRP (filename))
filename = scm_makfromstr (SCM_ROCHARS (filename), SCM_ROLENGTH (filename), 0);
args = SCM_CDR (args);
execargv = scm_convert_exec_args (args);
execv (SCM_ROCHARS (filename), execargv);
scm_syserror (s_execl);
/* not reached. */
return SCM_BOOL_F;
}
SCM_PROC (s_execlp, "execlp", 0, 0, 1, scm_execlp);
SCM
scm_execlp (args)
SCM args;
{
char **execargv;
SCM filename = SCM_CAR (args);
SCM_ASSERT (SCM_NIMP (filename) && SCM_ROSTRINGP (filename), filename,
SCM_ARG1, s_execlp);
if (SCM_SUBSTRP (filename))
filename = scm_makfromstr (SCM_ROCHARS (filename),
SCM_ROLENGTH (filename), 0);
args = SCM_CDR (args);
execargv = scm_convert_exec_args (args);
execvp (SCM_ROCHARS (filename), execargv);
scm_syserror (s_execlp);
/* not reached. */
return SCM_BOOL_F;
}
SCM_PROC (s_fork, "primitive-fork", 0, 0, 0, scm_fork);
SCM
scm_fork()
{
int pid;
pid = fork ();
if (pid == -1)
scm_syserror (s_fork);
return SCM_MAKINUM (0L+pid);
}
SCM_PROC (s_uname, "uname", 0, 0, 0, scm_uname);
SCM
scm_uname ()
{
#ifdef HAVE_UNAME
struct utsname buf;
SCM ans = scm_make_vector(SCM_MAKINUM(5), SCM_UNSPECIFIED, SCM_BOOL_F);
SCM *ve = SCM_VELTS (ans);
SCM_DEFER_INTS;
if (uname (&buf))
scm_syserror (s_uname);
ve[0] = scm_makfrom0str (buf.sysname);
ve[1] = scm_makfrom0str (buf.nodename);
ve[2] = scm_makfrom0str (buf.release);
ve[3] = scm_makfrom0str (buf.version);
ve[4] = scm_makfrom0str (buf.machine);
/*
a linux special?
ve[5] = scm_makfrom0str (buf.domainname);
*/
SCM_ALLOW_INTS;
return ans;
#else
scm_sysmissing (s_uname);
/* not reached. */
return SCM_BOOL_F;
#endif
}
SCM_PROC (s_environ, "environ", 0, 1, 0, scm_environ);
SCM
scm_environ (env)
SCM env;
{
if (SCM_UNBNDP (env))
return scm_makfromstrs (-1, environ);
else
{
int num_strings;
char **new_environ;
int i = 0;
SCM_ASSERT (SCM_NULLP (env) || (SCM_NIMP (env) && SCM_CONSP (env)),
env, SCM_ARG1, s_environ);
num_strings = scm_ilength (env);
new_environ = (char **) scm_must_malloc ((num_strings + 1)
* sizeof (char *),
s_environ);
while (SCM_NNULLP (env))
{
int len;
char *src;
SCM_ASSERT (SCM_NIMP (SCM_CAR (env))
&& SCM_ROSTRINGP (SCM_CAR (env)),
env, SCM_ARG1, s_environ);
len = 1 + SCM_ROLENGTH (SCM_CAR (env));
new_environ[i] = scm_must_malloc ((long) len, s_environ);
src = SCM_ROCHARS (SCM_CAR (env));
while (len--)
new_environ[i][len] = src[len];
env = SCM_CDR (env);
i++;
}
new_environ[i] = 0;
/* Free the old environment, except when called for the first
* time.
*/
{
char **ep;
static int first = 1;
if (!first)
{
for (ep = environ; *ep != NULL; ep++)
scm_must_free (*ep);
scm_must_free ((char *) environ);
}
first = 0;
}
environ = new_environ;
return SCM_UNSPECIFIED;
}
}
#ifdef L_tmpnam
SCM_PROC (s_tmpnam, "tmpnam", 0, 0, 0, scm_tmpnam);
SCM scm_tmpnam()
{
char name[L_tmpnam];
SCM_SYSCALL (tmpnam (name););
return scm_makfrom0str (name);
}
#endif
SCM_PROC (s_open_pipe, "open-pipe", 2, 0, 0, scm_open_pipe);
SCM
scm_open_pipe (pipestr, modes)
SCM pipestr;
SCM modes;
{
FILE *f;
register SCM z;
struct scm_port_table * pt;
SCM_ASSERT (SCM_NIMP (pipestr) && SCM_ROSTRINGP (pipestr), pipestr,
SCM_ARG1, s_open_pipe);
if (SCM_SUBSTRP (pipestr))
pipestr = scm_makfromstr (SCM_ROCHARS (pipestr),
SCM_ROLENGTH (pipestr), 0);
SCM_ASSERT (SCM_NIMP (modes) && SCM_ROSTRINGP (modes), modes, SCM_ARG2,
s_open_pipe);
if (SCM_SUBSTRP (modes))
modes = scm_makfromstr (SCM_ROCHARS (modes), SCM_ROLENGTH (modes), 0);
SCM_NEWCELL (z);
SCM_DEFER_INTS;
scm_ignore_signals ();
SCM_SYSCALL (f = popen (SCM_ROCHARS (pipestr), SCM_ROCHARS (modes)));
scm_unignore_signals ();
if (!f)
scm_syserror (s_open_pipe);
pt = scm_add_to_port_table (z);
SCM_SETPTAB_ENTRY (z, pt);
SCM_SETCAR (z, scm_tc16_pipe | SCM_OPN
| (strchr (SCM_ROCHARS (modes), 'r') ? SCM_RDNG : SCM_WRTNG));
SCM_SETSTREAM (z, (SCM)f);
SCM_ALLOW_INTS;
return z;
}
SCM_PROC (s_open_input_pipe, "open-input-pipe", 1, 0, 0, scm_open_input_pipe);
SCM
scm_open_input_pipe(pipestr)
SCM pipestr;
{
return scm_open_pipe(pipestr, scm_makfromstr("r", (sizeof "r")-1, 0));
}
SCM_PROC (s_open_output_pipe, "open-output-pipe", 1, 0, 0, scm_open_output_pipe);
SCM
scm_open_output_pipe(pipestr)
SCM pipestr;
{
return scm_open_pipe(pipestr, scm_makfromstr("w", (sizeof "w")-1, 0));
}
SCM_PROC (s_utime, "utime", 1, 2, 0, scm_utime);
SCM
scm_utime (pathname, actime, modtime)
SCM pathname;
SCM actime;
SCM modtime;
{
int rv;
struct utimbuf utm_tmp;
SCM_ASSERT (SCM_NIMP (pathname) && SCM_STRINGP (pathname), pathname,
SCM_ARG1, s_utime);
if (SCM_UNBNDP (actime))
SCM_SYSCALL (time (&utm_tmp.actime));
else
utm_tmp.actime = scm_num2ulong (actime, (char *) SCM_ARG2, s_utime);
if (SCM_UNBNDP (modtime))
SCM_SYSCALL (time (&utm_tmp.modtime));
else
utm_tmp.modtime = scm_num2ulong (modtime, (char *) SCM_ARG3, s_utime);
SCM_SYSCALL (rv = utime (SCM_CHARS (pathname), &utm_tmp));
if (rv != 0)
scm_syserror (s_utime);
return SCM_UNSPECIFIED;
}
SCM_PROC (s_access, "access?", 2, 0, 0, scm_access);
SCM
scm_access (path, how)
SCM path;
SCM how;
{
int rv;
SCM_ASSERT (SCM_NIMP (path) && SCM_ROSTRINGP (path), path, SCM_ARG1,
s_access);
if (SCM_SUBSTRP (path))
path = scm_makfromstr (SCM_ROCHARS (path), SCM_ROLENGTH (path), 0);
SCM_ASSERT (SCM_INUMP (how), how, SCM_ARG2, s_access);
rv = access (SCM_ROCHARS (path), SCM_INUM (how));
return rv ? SCM_BOOL_F : SCM_BOOL_T;
}
SCM_PROC (s_getpid, "getpid", 0, 0, 0, scm_getpid);
SCM
scm_getpid ()
{
return SCM_MAKINUM ((unsigned long) getpid ());
}
SCM_PROC (s_putenv, "putenv", 1, 0, 0, scm_putenv);
SCM
scm_putenv (str)
SCM str;
{
#ifdef HAVE_PUTENV
int rv;
SCM_ASSERT (SCM_NIMP (str) && SCM_STRINGP (str), str, SCM_ARG1, s_putenv);
rv = putenv (SCM_CHARS (str));
if (rv < 0)
scm_syserror (s_putenv);
return SCM_UNSPECIFIED;
#else
scm_sysmissing (s_putenv);
/* not reached. */
return SCM_BOOL_F;
#endif
}
SCM_PROC (s_setlocale, "setlocale", 1, 1, 0, scm_setlocale);
SCM
scm_setlocale (category, locale)
SCM category;
SCM locale;
{
#ifdef HAVE_SETLOCALE
char *clocale;
char *rv;
SCM_ASSERT (SCM_INUMP (category), category, SCM_ARG1, s_setlocale);
if (SCM_UNBNDP (locale))
{
clocale = NULL;
}
else
{
SCM_ASSERT (SCM_NIMP (locale) && SCM_STRINGP (locale), locale,
SCM_ARG2, s_setlocale);
clocale = SCM_CHARS (locale);
}
rv = setlocale (SCM_INUM (category), clocale);
if (rv == NULL)
scm_syserror (s_setlocale);
return scm_makfrom0str (rv);
#else
scm_sysmissing (s_setlocale);
/* not reached. */
return SCM_BOOL_F;
#endif
}
SCM_PROC (s_strftime, "strftime", 2, 0, 0, scm_strftime);
SCM
scm_strftime (format, stime)
SCM format;
SCM stime;
{
struct tm t;
char *tbuf;
int n;
int size = 50;
char *fmt;
int len;
SCM_ASSERT (SCM_NIMP (format) && SCM_STRINGP (format), format, SCM_ARG1,
s_strftime);
SCM_ASSERT (SCM_NIMP (stime) && SCM_VECTORP (stime)
&& scm_obj_length (stime) == 9,
stime, SCM_ARG2, s_strftime);
fmt = SCM_ROCHARS (format);
len = SCM_ROLENGTH (format);
#define tm_deref scm_num2long (SCM_VELTS (stime)[n++], (char *)SCM_ARG2, s_strftime)
n = 0;
t.tm_sec = tm_deref;
t.tm_min = tm_deref;
t.tm_hour = tm_deref;
t.tm_mday = tm_deref;
t.tm_mon = tm_deref;
t.tm_year = tm_deref;
/* not used by mktime.
t.tm_wday = tm_deref;
t.tm_yday = tm_deref; */
t.tm_isdst = tm_deref;
#undef tm_deref
/* fill in missing fields and set the timezone. */
mktime (&t);
tbuf = scm_must_malloc (size, s_strftime);
while ((len = strftime (tbuf, size, fmt, &t)) == size)
{
scm_must_free (tbuf);
size *= 2;
tbuf = scm_must_malloc (size, s_strftime);
}
return scm_makfromstr (tbuf, len, 0);
}
SCM_PROC (s_strptime, "strptime", 2, 0, 0, scm_strptime);
SCM
scm_strptime (format, string)
SCM format;
SCM string;
{
#ifdef HAVE_STRPTIME
SCM stime;
struct tm t;
char *fmt, *str, *rest;
int n;
SCM_ASSERT (SCM_NIMP (format) && SCM_ROSTRINGP (format), format, SCM_ARG1,
s_strptime);
if (SCM_SUBSTRP (format))
format = scm_makfromstr (SCM_ROCHARS (format), SCM_ROLENGTH (format), 0);
SCM_ASSERT (SCM_NIMP (string) && SCM_ROSTRINGP (string), string, SCM_ARG2,
s_strptime);
if (SCM_SUBSTRP (string))
string = scm_makfromstr (SCM_ROCHARS (string), SCM_ROLENGTH (string), 0);
fmt = SCM_CHARS (format);
str = SCM_CHARS (string);
/* initialize the struct tm */
#define tm_init(field) t.field = 0
tm_init (tm_sec);
tm_init (tm_min);
tm_init (tm_hour);
tm_init (tm_mday);
tm_init (tm_mon);
tm_init (tm_year);
tm_init (tm_wday);
tm_init (tm_yday);
tm_init (tm_isdst);
#undef tm_init
SCM_DEFER_INTS;
rest = strptime (str, fmt, &t);
SCM_ALLOW_INTS;
if (rest == NULL)
scm_syserror (s_strptime);
stime = scm_make_vector (SCM_MAKINUM (9), scm_long2num (0), SCM_UNDEFINED);
#define stime_set(val) scm_vector_set_x (stime, SCM_MAKINUM (n++), scm_long2num (t.val));
n = 0;
stime_set (tm_sec);
stime_set (tm_min);
stime_set (tm_hour);
stime_set (tm_mday);
stime_set (tm_mon);
stime_set (tm_year);
stime_set (tm_wday);
stime_set (tm_yday);
stime_set (tm_isdst);
#undef stime_set
return scm_cons (stime, scm_makfrom0str (rest));
#else
scm_sysmissing (s_strptime);
/* not reached. */
return SCM_BOOL_F;
#endif
}
SCM_PROC (s_mknod, "mknod", 3, 0, 0, scm_mknod);
SCM
scm_mknod(path, mode, dev)
SCM path;
SCM mode;
SCM dev;
{
#ifdef HAVE_MKNOD
int val;
SCM_ASSERT(SCM_NIMP(path) && SCM_ROSTRINGP(path), path, SCM_ARG1, s_mknod);
SCM_ASSERT(SCM_INUMP(mode), mode, SCM_ARG2, s_mknod);
SCM_ASSERT(SCM_INUMP(dev), dev, SCM_ARG3, s_mknod);
SCM_SYSCALL(val = mknod(SCM_ROCHARS(path), SCM_INUM(mode), SCM_INUM(dev)));
if (val != 0)
scm_syserror (s_mknod);
return SCM_UNSPECIFIED;
#else
scm_sysmissing (s_mknod);
/* not reached. */
return SCM_BOOL_F;
#endif
}
SCM_PROC (s_nice, "nice", 1, 0, 0, scm_nice);
SCM
scm_nice(incr)
SCM incr;
{
#ifdef HAVE_NICE
SCM_ASSERT(SCM_INUMP(incr), incr, SCM_ARG1, s_nice);
if (nice(SCM_INUM(incr)) != 0)
scm_syserror (s_nice);
return SCM_UNSPECIFIED;
#else
scm_sysmissing (s_nice);
/* not reached. */
return SCM_BOOL_F;
#endif
}
SCM_PROC (s_sync, "sync", 0, 0, 0, scm_sync);
SCM
scm_sync()
{
#ifdef HAVE_SYNC
sync();
#else
scm_sysmissing (s_sync);
/* not reached. */
#endif
return SCM_BOOL_F;
}
void
scm_init_posix ()
{
scm_add_feature ("posix");
#ifdef HAVE_GETEUID
scm_add_feature ("EIDs");
#endif
#ifdef WAIT_ANY
scm_sysintern ("WAIT_ANY", SCM_MAKINUM (WAIT_ANY));
#endif
#ifdef WAIT_MYPGRP
scm_sysintern ("WAIT_MYPGRP", SCM_MAKINUM (WAIT_MYPGRP));
#endif
#ifdef WNOHANG
scm_sysintern ("WNOHANG", SCM_MAKINUM (WNOHANG));
#endif
#ifdef WUNTRACED
scm_sysintern ("WUNTRACED", SCM_MAKINUM (WUNTRACED));
#endif
/* access() symbols. */
scm_sysintern ("R_OK", SCM_MAKINUM (R_OK));
scm_sysintern ("W_OK", SCM_MAKINUM (W_OK));
scm_sysintern ("X_OK", SCM_MAKINUM (X_OK));
scm_sysintern ("F_OK", SCM_MAKINUM (F_OK));
#ifdef LC_COLLATE
scm_sysintern ("LC_COLLATE", SCM_MAKINUM (LC_COLLATE));
#endif
#ifdef LC_CTYPE
scm_sysintern ("LC_CTYPE", SCM_MAKINUM (LC_CTYPE));
#endif
#ifdef LC_MONETARY
scm_sysintern ("LC_MONETARY", SCM_MAKINUM (LC_MONETARY));
#endif
#ifdef LC_NUMERIC
scm_sysintern ("LC_NUMERIC", SCM_MAKINUM (LC_NUMERIC));
#endif
#ifdef LC_TIME
scm_sysintern ("LC_TIME", SCM_MAKINUM (LC_TIME));
#endif
#ifdef LC_MESSAGES
scm_sysintern ("LC_MESSAGES", SCM_MAKINUM (LC_MESSAGES));
#endif
#ifdef LC_ALL
scm_sysintern ("LC_ALL", SCM_MAKINUM (LC_ALL));
#endif
#include "cpp_sig_symbols.c"
#include "posix.x"
}