(scm_freopen): use RO string macros for filename and modes.
(scm_duplicate_port, scm_fdopen): use RO string macros for modes.
* posix.c (scm_getgrgid): simplify conversion of name to C string.
(scm_mknod): use RO string macros for path.
* socket.c (scm_fill_sockaddr, scm_send, scm_sendto):
use SCM_ROSTRINGP, SCM_ROCHARS, SCM_ROLENGTH.
* net_db.c (scm_gethost, scm_getnet, scm_getproto, scm_getserv):
use SCM_ROSTRINGP and SCM_ROCHARS.
* read.c (scm_lreadr): use scm_misc_error to improve one of the
"unknown # object" error messages.
* strop.c (scm_i_index, scm_i_rindex): combine into one procedure
(scm_i_index) and declare it static. Add a 'direction' argument
to indicate what way the search should go.
(scm_i_index): throw out-of-range error instead of wrong-type-arg
if indices are bad.
(scm_string_index, scm_string_rindex): adjust usage of scm_i_index.
strop.h: remove scm_i_index, scm_i_rindex prototypes.
FIONREAD, since the latter doesn't detect EOF.
Throw error if neither select nor FIONREAD available.
* socket.c (scm_connect): take a port, not a fd object.
(scm_fill_sockaddr): throw an error if fam is not recognised.
(scm_bind): use scm_fill_sockaddr.
(scm_listen): take a port, not a fd object.
(scm_accept): take and return a port. return CDR in the car if
address can't be got
(scm_sock_fd_to_port): new procedure.
(scm_socket): use scm_sock_fd_to_port.
(scm_addr_vector): throw error if unrecognised address type.
take an extra argument with the calling procedure name.
(scm_getsockname): take a port. return #f if address can't be got.
(scm_getpeername): take a port. return #f if address can't be got.
(scm_recvfrom): take a port. return #f for address component if can't
be got.
(scm_sendto, scm_socketpair, scm_getsockopt scm_shutdown,
scm_setsockopt, scm_recv, scm_send): take a port not a fd object.
* socket.h (SCM_P): update bind prototype.
* socket.c (scm_init_socket): intern PF_UNSPEC, PF_UNIX, PF_INET.
include "feature.h".
(scm_socket): return a port, not a file descriptor object.
include "fports.h" and <unistd.h>
(scm_bind): take a port, not a file descriptor object.
take an extra argument for address args.
* net_db.c (scm_init_net_db): intern INADDR_ANY, INADDR_BROADCAST,
INADDR_NONE, INADDR_LOOPBACK.
* init.c: include net_db.h and not fdsocket.h.
(scm_boot_guile_1): call scm_init_net_db and not scm_init_fdsocket.
* Makefile.am: corresponding changes.
* socket.h: renamed from fdsocket.h, fix names.
* net_db.h: renamed from socket.h, fix names.
* socket.c: renamed from fdsocket.c.
remove _sys from procedure names.
(scm_init_socket): rename from scm_init_fdsocket. include socket.x.
add "socket" to features list.
* net_db.c: renamed from socket.c.
remove _sys from procedure names.
(scm_init_net_db): rename from scm_init_socket. include net_db.x.
add "net-db" to features list.
include "net_db.h". don't include <sys/socket.h> or
<sys/un.h>.
