glibc/posix/getconf.c
Ulrich Drepper e4cf507069 update from main archive 961201
Mon Dec  2 03:59:38 1996  Ulrich Drepper  <drepper@cygnus.com>

	* grp/initgroups.c: Update and reformat copyright.
	Use __getgrent_r instead of getgrent.

	* inet/rcmd.c: Update and reformat copyright.
	Use __gethostbyname_r instead of gethostbyname.
	* inet/rexec.c: Likewise.

	* intl/finddomain.c: Correct comment about CEN sponsor and revision.
	* locale/findlocale.c: Likewise.
	* intl/l10nflist.c: Correct handling of CEN sponsor and revision.
	* locale/Makefile (CPPFLAGS): Add definition of LOCALEDIR.
	* locale/setlocale.c (setlocale): Correctly split value of
	LOCALE_PATH.
	* locale/programs/localedef.c: Use LOCALEDIR not LOCALE_PATH to
	find output directory.

	* nss/getXXbyYY.c [NEED_H_ERRNO]: Before enlarging buffer test
	h_errno_tmp variable.
	Save error value from being changed during `free' call.
	* nss/getXXent.c: Likewise.

	* nss/nss_files/files-XXX.c: Set h_errno variable to NETDB_INTERNAL
	before returning ERANGE error.

	* posix/glob.c: Use getlogin_r and getpwnam_r function when available
	or in GNU libc.

	* pwd/getpw.c: Use getpwuid_r instead of getpwuid.

	* sunrpc/clnt_gen.c: Use gethostbyname_r and getprotobyname_r.
	* sunrpc/clnt_simp.c: Likewise.
	* sunrpc/getrpcport.c: Likewise.
	* sysdeps/unix/sysv/linux/gethostid.c: Likewise.

	* posix/getconf.c: Treat _SC_UNIT_MAX and _SC_ULONG_MAX separately
	since the value might be outsode the range of the `long int'.
	Print string `undefined' when a value is undefined.

	* stdlib/l64a.c: Return correct pointer.
	Patch by NIIBE Yutaka <gniibe@mri.co.jp>.

	* string/Makefile (routines): Add argz-addsep.
	* string/argz-addsep.c: New file.
	* string/argz.h: Add prototypes for argz_add_sep.

	* string/argz-ctsep.c: Prevent memory leak.

	* string/strcoll.c: Correct typo in comment.

Sat Nov 30 02:53:59 1996  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/unix/sysv/linux/sys/serial.h: Removed again.  The file is
	not general enough to be part of the libc.
	* sysdeps/unix/sysv/linux/Dist: Remove sys/serial.h.
	* sysdeps/unix/sysv/linux/Makefile: Don't install sys/serial.h.

Thu Nov 28 20:04:41 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* login/Makefile: Fix typo.

	* nss/Makefile (generated): Filter out db-alias.c.

Thu Nov 28 14:44:01 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* time/Makefile (echo-zonenames): Don't depend on non-existing
	target `zonenames'.

Thu Nov 28 12:34:05 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* link.h: New file.
	* nss/nsswitch.c: Use it.

	* printf.h: Fix file name.
	* stdlib/strfmon.c: Use it.
1996-12-02 04:00:15 +00:00

264 lines
10 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., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <unistd.h>
#include <errno.h>
#include <error.h>
#include <libintl.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 },
{ "_POSIX_LINK_MAX", _PC_LINK_MAX, PATHCONF },
{ "MAX_CANON", _PC_MAX_CANON, PATHCONF },
{ "_POSIX_MAX_CANON", _PC_MAX_CANON, PATHCONF },
{ "MAX_INPUT", _PC_MAX_INPUT, PATHCONF },
{ "_POSIX_MAX_INPUT", _PC_MAX_INPUT, PATHCONF },
{ "NAME_MAX", _PC_NAME_MAX, PATHCONF },
{ "_POSIX_NAME_MAX", _PC_NAME_MAX, PATHCONF },
{ "PATH_MAX", _PC_PATH_MAX, PATHCONF },
{ "_POSIX_PATH_MAX", _PC_PATH_MAX, PATHCONF },
{ "PIPE_BUF", _PC_PIPE_BUF, PATHCONF },
{ "_POSIX_PIPE_BUF", _PC_PIPE_BUF, PATHCONF },
{ "SOCK_MAXBUF", _PC_SOCK_MAXBUF, PATHCONF },
{ "_POSIX_ASYNC_IO", _PC_ASYNC_IO, PATHCONF },
{ "_POSIX_CHOWN_RESTRICTED", _PC_CHOWN_RESTRICTED, PATHCONF },
{ "_POSIX_NO_TRUNC", _PC_NO_TRUNC, PATHCONF },
{ "_POSIX_PRIO_IO", _PC_PRIO_IO, PATHCONF },
{ "_POSIX_SYNC_IO", _PC_SYNC_IO, PATHCONF },
{ "_POSIX_VDISABLE", _PC_VDISABLE, PATHCONF },
{ "ARG_MAX", _SC_ARG_MAX, SYSCONF },
{ "ATEXIT_MAX", _SC_ATEXIT_MAX, SYSCONF },
{ "CHAR_BIT", _SC_CHAR_BIT, SYSCONF },
{ "CHAR_MAX", _SC_CHAR_MAX, SYSCONF },
{ "CHAR_MIN", _SC_CHAR_MIN, SYSCONF },
{ "CHILD_MAX", _SC_CHILD_MAX, SYSCONF },
{ "CLK_TCK", _SC_CLK_TCK, SYSCONF },
{ "INT_MAX", _SC_INT_MAX, SYSCONF },
{ "INT_MIN", _SC_INT_MIN, SYSCONF },
{ "IOV_MAX", _SC_UIO_MAXIOV, SYSCONF },
{ "LOGNAME_MAX", _SC_LOGIN_NAME_MAX, SYSCONF },
{ "LONG_BIT", _SC_LONG_BIT, SYSCONF },
{ "MB_LEN_MAX", _SC_MB_LEN_MAX, SYSCONF },
{ "NGROUPS_MAX", _SC_NGROUPS_MAX, SYSCONF },
{ "NL_ARGMAX", _SC_NL_ARGMAX, SYSCONF },
{ "NL_LANGMAX", _SC_NL_LANGMAX, SYSCONF },
{ "NL_MSGMAX", _SC_NL_MSGMAX, SYSCONF },
{ "NL_NMAX", _SC_NL_NMAX, SYSCONF },
{ "NL_SETMAX", _SC_NL_SETMAX, SYSCONF },
{ "NL_TEXTMAX", _SC_NL_TEXTMAX, SYSCONF },
{ "NSS_BUFLEN_GROUP", _SC_GETGR_R_SIZE_MAX, SYSCONF },
{ "NSS_BUFLEN_PASSWD", _SC_GETPW_R_SIZE_MAX, SYSCONF },
{ "NZERO", _SC_NZERO, SYSCONF },
{ "OPEN_MAX", _SC_OPEN_MAX, SYSCONF },
{ "PAGESIZE", _SC_PAGESIZE, SYSCONF },
{ "PAGE_SIZE", _SC_PAGESIZE, SYSCONF },
{ "PASS_MAX", _SC_PASS_MAX, SYSCONF },
{ "PTHREAD_DESTRUCTOR_ITERATIONS", _SC_THREAD_DESTRUCTOR_ITERATIONS, SYSCONF },
{ "PTHREAD_KEYS_MAX", _SC_THREAD_KEYS_MAX, SYSCONF },
{ "PTHREAD_STACK_MIN", _SC_THREAD_STACK_MIN, SYSCONF },
{ "PTHREAD_THREADS_MAX", _SC_THREAD_THREADS_MAX, SYSCONF },
{ "SCHAR_MAX", _SC_SCHAR_MAX, SYSCONF },
{ "SCHAR_MIN", _SC_SCHAR_MIN, SYSCONF },
{ "SHRT_MAX", _SC_SHRT_MAX, SYSCONF },
{ "SHRT_MIN", _SC_SHRT_MIN, SYSCONF },
{ "SSIZE_MAX", _SC_SSIZE_MAX, SYSCONF },
{ "TTY_NAME_MAX", _SC_TTY_NAME_MAX, SYSCONF },
{ "TZNAME_MAX", _SC_TZNAME_MAX, SYSCONF },
{ "UCHAR_MAX", _SC_UCHAR_MAX, SYSCONF },
{ "UINT_MAX", _SC_UINT_MAX, SYSCONF },
{ "UIO_MAXIOV", _SC_UIO_MAXIOV, SYSCONF },
{ "ULONG_MAX", _SC_ULONG_MAX, SYSCONF },
{ "USHRT_MAX", _SC_USHRT_MAX, SYSCONF },
{ "WORD_BIT", _SC_WORD_BIT, SYSCONF },
{ "_AVPHYS_PAGES", _SC_AVPHYS_PAGES, SYSCONF },
{ "_NPROCESSORS_CONF", _SC_NPROCESSORS_CONF, SYSCONF },
{ "_NPROCESSORS_ONLN", _SC_NPROCESSORS_ONLN, SYSCONF },
{ "_PHYS_PAGES", _SC_PHYS_PAGES, SYSCONF },
{ "_POSIX_ARG_MAX", _SC_ARG_MAX, SYSCONF },
{ "_POSIX_ASYNCHRONOUS_IO", _SC_ASYNCHRONOUS_IO, SYSCONF },
{ "_POSIX_CHILD_MAX", _SC_CHILD_MAX, SYSCONF },
{ "_POSIX_FSYNC", _SC_FSYNC, SYSCONF },
{ "_POSIX_JOB_CONTROL", _SC_JOB_CONTROL, 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_NGROUPS_MAX", _SC_NGROUPS_MAX, SYSCONF },
{ "_POSIX_OPEN_MAX", _SC_OPEN_MAX, SYSCONF },
{ "_POSIX_PII", _SC_PII, SYSCONF },
{ "_POSIX_PII_INTERNET", _SC_PII_INTERNET, SYSCONF },
{ "_POSIX_PII_INTERNET_DGRAM", _SC_PII_INTERNET_DGRAM, SYSCONF },
{ "_POSIX_PII_INTERNET_STREAM", _SC_PII_INTERNET_STREAM, SYSCONF },
{ "_POSIX_PII_OSI", _SC_PII_OSI, SYSCONF },
{ "_POSIX_PII_OSI_CLTS", _SC_PII_OSI_CLTS, SYSCONF },
{ "_POSIX_PII_OSI_COTS", _SC_PII_OSI_COTS, SYSCONF },
{ "_POSIX_PII_OSI_M", _SC_PII_OSI_M, SYSCONF },
{ "_POSIX_PII_SOCKET", _SC_PII_SOCKET, SYSCONF },
{ "_POSIX_PII_XTI", _SC_PII_XTI, SYSCONF },
{ "_POSIX_POLL", _SC_POLL, SYSCONF },
{ "_POSIX_PRIORITIZED_IO", _SC_PRIORITIZED_IO, SYSCONF },
{ "_POSIX_PRIORITY_SCHEDULING", _SC_PRIORITY_SCHEDULING, SYSCONF },
{ "_POSIX_REALTIME_SIGNALS", _SC_REALTIME_SIGNALS, SYSCONF },
{ "_POSIX_SAVED_IDS", _SC_SAVED_IDS, SYSCONF },
{ "_POSIX_SELECT", _SC_SELECT, SYSCONF },
{ "_POSIX_SEMAPHORES", _SC_SEMAPHORES, SYSCONF },
{ "_POSIX_SHARED_MEMORY_OBJECTS", _SC_SHARED_MEMORY_OBJECTS, SYSCONF },
{ "_POSIX_SSIZE_MAX", _SC_SSIZE_MAX, SYSCONF },
{ "_POSIX_STREAM_MAX", _SC_STREAM_MAX, SYSCONF },
{ "_POSIX_SYNCHRONIZED_IO", _SC_SYNCHRONIZED_IO, SYSCONF },
{ "_POSIX_THREADS", _SC_THREADS, SYSCONF },
{ "_POSIX_THREAD_ATTR_STACKADDR", _SC_THREAD_ATTR_STACKADDR, SYSCONF },
{ "_POSIX_THREAD_ATTR_STACKSIZE", _SC_THREAD_ATTR_STACKSIZE, SYSCONF },
{ "_POSIX_THREAD_PRIORITY_SCHEDULING", _SC_THREAD_PRIORITY_SCHEDULING, SYSCONF },
{ "_POSIX_THREAD_PRIO_INHERIT", _SC_THREAD_PRIO_INHERIT, SYSCONF },
{ "_POSIX_THREAD_PRIO_PROTECT", _SC_THREAD_PRIO_PROTECT, SYSCONF },
{ "_POSIX_THREAD_PROCESS_SHARED", _SC_THREAD_PROCESS_SHARED, SYSCONF },
{ "_POSIX_THREAD_SAFE_FUNCTIONS", _SC_THREAD_SAFE_FUNCTIONS, SYSCONF },
{ "_POSIX_TIMERS", _SC_TIMERS, SYSCONF },
{ "_POSIX_TZNAME_MAX", _SC_TZNAME_MAX, SYSCONF },
{ "_POSIX_VERSION", _SC_VERSION, SYSCONF },
{ "_T_IOV_MAX", _SC_T_IOV_MAX, SYSCONF },
{ "_XOPEN_CRYPT", _SC_XOPEN_CRYPT, SYSCONF },
{ "_XOPEN_ENH_I18N", _SC_XOPEN_ENH_I18N, SYSCONF },
{ "_XOPEN_SHM", _SC_XOPEN_SHM, SYSCONF },
{ "_XOPEN_UNIX", _SC_XOPEN_UNIX, SYSCONF },
{ "_XOPEN_VERSION", _SC_XOPEN_VERSION, SYSCONF },
{ "_XOPEN_XCU_VERSION", _SC_XOPEN_XCU_VERSION, SYSCONF },
{ "_XOPEN_XPG2", _SC_XOPEN_XPG2, SYSCONF },
{ "_XOPEN_XPG3", _SC_XOPEN_XPG3, SYSCONF },
{ "_XOPEN_XPG4", _SC_XOPEN_XPG4, SYSCONF },
/* POSIX.2 */
{ "BC_BASE_MAX", _SC_BC_BASE_MAX, SYSCONF },
{ "BC_DIM_MAX", _SC_BC_DIM_MAX, SYSCONF },
{ "BC_SCALE_MAX", _SC_BC_SCALE_MAX, SYSCONF },
{ "BC_STRING_MAX", _SC_BC_STRING_MAX, SYSCONF },
{ "CHARCLASS_NAME_MAX", _SC_CHARCLASS_NAME_MAX },
{ "COLL_WEIGHTS_MAX", _SC_COLL_WEIGHTS_MAX, SYSCONF },
{ "EQUIV_CLASS_MAX", _SC_EQUIV_CLASS_MAX, SYSCONF },
{ "EXPR_NEST_MAX", _SC_EXPR_NEST_MAX, SYSCONF },
{ "LINE_MAX", _SC_LINE_MAX, SYSCONF },
{ "POSIX2_BC_BASE_MAX", _SC_BC_BASE_MAX, SYSCONF },
{ "POSIX2_BC_DIM_MAX", _SC_BC_DIM_MAX, SYSCONF },
{ "POSIX2_BC_SCALE_MAX", _SC_BC_SCALE_MAX, SYSCONF },
{ "POSIX2_BC_STRING_MAX", _SC_BC_STRING_MAX, SYSCONF },
{ "POSIX2_CHAR_TERM", _SC_2_CHAR_TERM, SYSCONF },
{ "POSIX2_COLL_WEIGHTS_MAX", _SC_COLL_WEIGHTS_MAX, SYSCONF },
{ "POSIX2_C_BIND", _SC_2_C_BIND, SYSCONF },
{ "POSIX2_C_DEV", _SC_2_C_DEV, SYSCONF },
{ "POSIX2_C_VERSION", _SC_2_C_VERSION, SYSCONF },
{ "POSIX2_EXPR_NEST_MAX", _SC_EXPR_NEST_MAX, SYSCONF },
{ "POSIX2_FORT_DEV", _SC_2_FORT_DEV, SYSCONF },
{ "POSIX2_FORT_RUN", _SC_2_FORT_RUN, SYSCONF },
{ "POSIX2_LINE_MAX", _SC_LINE_MAX, SYSCONF },
{ "POSIX2_LOCALEDEF", _SC_2_LOCALEDEF, SYSCONF },
{ "POSIX2_RE_DUP_MAX", _SC_RE_DUP_MAX, SYSCONF },
{ "POSIX2_SW_DEV", _SC_2_SW_DEV, SYSCONF },
{ "POSIX2_UPE", _SC_2_UPE, SYSCONF },
{ "POSIX2_VERSION", _SC_2_VERSION, SYSCONF },
{ "RE_DUP_MAX", _SC_RE_DUP_MAX, SYSCONF },
{ "PATH", _CS_PATH, CONFSTR },
{ "CS_PATH", _CS_PATH, CONFSTR },
{ NULL, 0, SYSCONF }
};
extern const char *__progname;
static void
usage (void)
{
fprintf (stderr, _("Usage: %s variable_name [pathname]\n"), __progname);
exit (2);
}
int
main (int argc, char *argv[])
{
register const struct conf *c;
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)
error (3, errno, "pathconf: %s", argv[2]);
printf ("%ld\n", value);
exit (0);
case SYSCONF:
if (argc > 2)
usage ();
value = sysconf (c->call_name);
if (value == -1l)
if (c->call_name == _SC_UINT_MAX
|| c->call_name == _SC_ULONG_MAX)
printf ("%lu\n", value);
else
puts (_("undefined"));
else
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)
error (3, 0, _("memory exhausted"));
if (confstr (c->call_name, cvalue, clen) != clen)
error (3, errno, "confstr");
printf ("%.*s\n", (int) clen, cvalue);
exit (0);
}
}
error (2, 0, _("Unrecognized variable `%s'"), argv[1]);
/* NOTREACHED */
return 2;
}