glibc/posix/getconf.c
Roland McGrath 503054c0dd Wed Jul 3 16:29:41 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
* nss/getXXbyYY_r.c (REENTRANT_NAME): Cast FCT in __nss_next call.

	* sysdeps/generic/sbrk.c: Always call __brk (0) to update __curbrk.

	* malloc/malloc-size.c (malloc_usable_size): Renamed from
	malloc_object_allocation_size.
	* malloc/malloc.h: Fix decl.

	* sys/select.h: New file, wrapper header.

	* posix/sys/types.h [__USE_BSD]: Include <sys/select.h>; remove
	fd_set, associated macros, and select decl.

	* sysdeps/posix/isfdtype.c: New file.

Tue Jul  2 23:45:14 1996  Ulrich Drepper  <drepper@cygnus.com>

	The latest Japanese proposal for POSIX locales renames the
	CHARMAP keyword in locale definition files to CHARCONV.
	* locale/programs/ld-ctype.c, locale/programs/locales.h: Rename
        function ctype_is_charmap to ctype_is_charconv.
	* locale/programs/locfile-kw.gperf: Replace charmap keyword with
        charconv.
	* locale/programs/locfile-token.h: Add definition of token
        charconv.
	* locale/programs/locfile.c: Recognize charconv keyword.  Rename
        lables according to this.

	* locale/weight.h (get_weight): Cast constants to prevent
        warnings.

	* stdlib/strtod.c, stdlib/strtol.c, string/strcoll.c,
	string/strxfrm.c: Add some more casts to prevent signed<->unsigned
	warnings.

	New stuff described in P1003.1g.
	* misc/Makefile (headers): Add sys/select.h.
	(routines): Add pselect.
	* misc/sys/select.h: New file.  Declare select functions and
	needed data types and macros.
	* sysdeps/generic/pselect.c: New file.  Add generic implementation
	of pselect() function which uses select().

	* posix/getconf.c: Recognize new variables from P1003.1g.
	* posix/posix1_lim.h: Define _POSIX_FD_SETSIZE, _POSIX_QLIMIT,
	_POSIX_HIWAT, and _POSIX_UIO_MAXIOV.
	* posix/unistd.h: Add description of the P1003.1g variables.
	* sysdeps/generic/confname.h: Define _SC_* values for new
	variables.
	* sysdeps/posix/fpathconf.c (fpathconf): Add handling of
	_PC_SOCK_MAXBUF.
	* sysdeps/stub/fpathconf.c (fpathconf): Ditto.
	* sysdeps/posix/sysconf.c (sysconf): Add handling of new
	P1003.1g variables.
	* sysdeps/stub/sysconf.c (sysconf): Ditto.
	* sysdeps/unix/sysv/linux/posix_opt.h: Define _POSIX_POLL and
	_POSIX_SELECT since Linux has this.

	* socket/Makefile (routines): Add isfdtype.
	* sysdeps/generic/sys/socket.h: Add prototype for isfdtype.
	* sysdeps/stub/isfdtype.c: New file.  Stub implementation of
	isfdtype.

	* wcsmbs/wcrtomb.c (wcrtomb): Fix typo.
1996-07-04 00:07:18 +00:00

167 lines
5.2 KiB
C

/* Copyright (C) 1991, 1992, 1995, 1996 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <ansidecl.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
struct conf
{
CONST char *name;
CONST int call_name;
CONST enum { SYSCONF, CONFSTR, PATHCONF } call;
};
static struct conf vars[] =
{
{ "LINK_MAX", _PC_LINK_MAX, PATHCONF },
{ "MAX_CANON", _PC_MAX_CANON, PATHCONF },
{ "MAX_INPUT", _PC_MAX_INPUT, PATHCONF },
{ "NAME_MAX", _PC_NAME_MAX, PATHCONF },
{ "PATH_MAX", _PC_PATH_MAX, PATHCONF },
{ "PIPE_BUF", _PC_PIPE_BUF, PATHCONF },
{ "SOCK_MAXBUF", _PC_SOCK_MAXBUF, PATHCONF },
{ "_POSIX_CHOWN_RESTRICTED", _PC_CHOWN_RESTRICTED, PATHCONF },
{ "_POSIX_NO_TRUNC", _PC_NO_TRUNC, PATHCONF },
{ "_POSIX_VDISABLE", _PC_VDISABLE, PATHCONF },
{ "_POSIX_SYNC_IO", _PC_SYNC_IO, PATHCONF },
{ "_POSIX_ASYNC_IO", _PC_ASYNC_IO, PATHCONF },
{ "_POSIX_PRIO_IO", _PC_PRIO_IO, PATHCONF },
{ "ARG_MAX", _SC_ARG_MAX, SYSCONF },
{ "CHILD_MAX", _SC_CHILD_MAX, SYSCONF },
{ "CLK_TCK", _SC_CLK_TCK, SYSCONF },
{ "NGROUPS_MAX", _SC_NGROUPS_MAX, SYSCONF },
{ "OPEN_MAX", _SC_OPEN_MAX, SYSCONF },
{ "_POSIX_JOB_CONTROL", _SC_JOB_CONTROL, SYSCONF },
{ "_POSIX_SAVED_IDS", _SC_SAVED_IDS, SYSCONF },
{ "_POSIX_REALTIME_SIGNALS", _SC_REALTIME_SIGNALS, SYSCONF },
{ "_POSIX_PRIORITY_SCHEDULING", _SC_PRIORITY_SCHEDULING, SYSCONF },
{ "_POSIX_TIMERS", _SC_TIMERS, SYSCONF },
{ "_POSIX_ASYNCHRONOUS_IO", _SC_ASYNCHRONOUS_IO, SYSCONF },
{ "_POSIX_PRIORITIZED_IO", _SC_PRIORITIZED_IO, SYSCONF },
{ "_POSIX_SYNCHRONIZED_IO", _SC_SYNCHRONIZED_IO, SYSCONF },
{ "_POSIX_FSYNC", _SC_FSYNC, SYSCONF },
{ "_POSIX_MAPPED_FILES", _SC_MAPPED_FILES, SYSCONF },
{ "_POSIX_MEMLOCK", _SC_MEMLOCK, SYSCONF },
{ "_POSIX_MEMLOCK_RANGE", _SC_MEMLOCK_RANGE, SYSCONF },
{ "_POSIX_MEMORY_PROTECTION", _SC_MEMORY_PROTECTION, SYSCONF },
{ "_POSIX_MESSAGE_PASSING", _SC_MESSAGE_PASSING, SYSCONF },
{ "_POSIX_SEMAPHORES", _SC_SEMAPHORES, SYSCONF },
{ "_POSIX_SHARED_MEMORY_OBJECTS", _SC_SHARED_MEMORY_OBJECTS, SYSCONF },
{ "_POSIX_VERSION", _SC_VERSION, SYSCONF },
{ "_POSIX_PII", _SC_PII, SYSCONF },
{ "_POSIX_PII_XTI", _SC_PII_XTI, SYSCONF },
{ "_POSIX_PII_SOCKET", _SC_PII_SOCKET, SYSCONF },
{ "_POSIX_PII_INTERNET", _SC_PII_INTERNET, SYSCONF },
{ "_POSIX_PII_OSI", _SC_PII_OSI, SYSCONF },
{ "_POSIX_POLL", _SC_POLL, SYSCONF },
{ "_POSIX_SELECT", _SC_SELECT, SYSCONF },
{ "UIO_MAXIOV", _SC_UIO_MAXIOV, SYSCONF },
{ "_POSIX_PII_INTERNET_STREAM", _SC_PII_INTERNET_STREAM, SYSCONF },
{ "_POSIX_PII_INTERNET_DGRAM", _SC_PII_INTERNET_DGRAM, SYSCONF },
{ "_POSIX_PII_OSI_COTS", _SC_PII_OSI_COTS, SYSCONF },
{ "_POSIX_PII_OSI_CLTS", _SC_PII_OSI_CLTS, SYSCONF },
{ "_POSIX_PII_OSI_M", _SC_PII_OSI_M, SYSCONF },
{ "_T_IOV_MAX", _SC_T_IOV_MAX, SYSCONF },
{ "PATH", _CS_PATH, CONFSTR },
{ NULL, 0, SYSCONF }
};
static CONST char *program;
static void
DEFUN_VOID(usage)
{
fprintf (stderr, _("Usage: %s variable_name [pathname]\n"), program);
exit (2);
}
int
DEFUN(main, (argc, argv), int argc AND char **argv)
{
register CONST struct conf *c;
program = strrchr (argv[0], '/');
if (program == NULL)
program = argv[0];
else
++program;
if (argc < 2 || argc > 3)
usage ();
for (c = vars; c->name != NULL; ++c)
if (!strcmp (c->name, argv[1]))
{
long int value;
size_t clen;
char *cvalue;
switch (c->call)
{
case PATHCONF:
if (argc < 3)
usage ();
value = pathconf (argv[2], c->call_name);
if (value == -1)
{
fprintf (stderr, "%s: pathconf: %s: %s\n",
program, argv[2], strerror (errno));
exit (3);
}
printf ("%ld\n", value);
exit (0);
case SYSCONF:
if (argc > 2)
usage ();
value = sysconf (c->call_name);
printf ("%ld\n", value);
exit (0);
case CONFSTR:
if (argc > 2)
usage ();
clen = confstr (c->call_name, (char *) NULL, 0);
cvalue = (char *) malloc (clen);
if (cvalue == NULL)
{
fprintf (stderr, "%s: malloc: %s\n",
program, strerror (errno));
exit (3);
}
if (confstr (c->call_name, cvalue, clen) != clen)
{
fprintf (stderr, "%s: confstr: %s\n",
program, strerror (errno));
exit (3);
}
printf ("%.*s\n", (int) clen, cvalue);
exit (0);
}
}
fprintf (stderr, _("%s: Unrecognized variable `%s'\n"), program, argv[1]);
exit (2);
}