332 lines
13 KiB
C
332 lines
13 KiB
C
/* Copyright (C) 1991, 1992, 1995, 1996, 1997 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <unistd.h>
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#include <errno.h>
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#include <error.h>
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#include <libintl.h>
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#include <locale.h>
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#include <string.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include "../version.h"
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#define PACKAGE _libc_intl_domainname
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struct conf
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{
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const char *name;
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const int call_name;
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const enum { SYSCONF, CONFSTR, PATHCONF } call;
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};
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static const struct conf vars[] =
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{
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{ "LINK_MAX", _PC_LINK_MAX, PATHCONF },
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{ "_POSIX_LINK_MAX", _PC_LINK_MAX, PATHCONF },
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{ "MAX_CANON", _PC_MAX_CANON, PATHCONF },
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{ "_POSIX_MAX_CANON", _PC_MAX_CANON, PATHCONF },
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{ "MAX_INPUT", _PC_MAX_INPUT, PATHCONF },
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{ "_POSIX_MAX_INPUT", _PC_MAX_INPUT, PATHCONF },
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{ "NAME_MAX", _PC_NAME_MAX, PATHCONF },
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{ "_POSIX_NAME_MAX", _PC_NAME_MAX, PATHCONF },
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{ "PATH_MAX", _PC_PATH_MAX, PATHCONF },
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{ "_POSIX_PATH_MAX", _PC_PATH_MAX, PATHCONF },
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{ "PIPE_BUF", _PC_PIPE_BUF, PATHCONF },
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{ "_POSIX_PIPE_BUF", _PC_PIPE_BUF, PATHCONF },
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{ "SOCK_MAXBUF", _PC_SOCK_MAXBUF, PATHCONF },
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{ "_POSIX_ASYNC_IO", _PC_ASYNC_IO, PATHCONF },
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{ "_POSIX_CHOWN_RESTRICTED", _PC_CHOWN_RESTRICTED, PATHCONF },
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{ "_POSIX_NO_TRUNC", _PC_NO_TRUNC, PATHCONF },
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{ "_POSIX_PRIO_IO", _PC_PRIO_IO, PATHCONF },
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{ "_POSIX_SYNC_IO", _PC_SYNC_IO, PATHCONF },
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{ "_POSIX_VDISABLE", _PC_VDISABLE, PATHCONF },
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{ "ARG_MAX", _SC_ARG_MAX, SYSCONF },
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{ "ATEXIT_MAX", _SC_ATEXIT_MAX, SYSCONF },
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{ "CHAR_BIT", _SC_CHAR_BIT, SYSCONF },
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{ "CHAR_MAX", _SC_CHAR_MAX, SYSCONF },
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{ "CHAR_MIN", _SC_CHAR_MIN, SYSCONF },
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{ "CHILD_MAX", _SC_CHILD_MAX, SYSCONF },
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{ "CLK_TCK", _SC_CLK_TCK, SYSCONF },
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{ "INT_MAX", _SC_INT_MAX, SYSCONF },
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{ "INT_MIN", _SC_INT_MIN, SYSCONF },
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{ "IOV_MAX", _SC_UIO_MAXIOV, SYSCONF },
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{ "LOGNAME_MAX", _SC_LOGIN_NAME_MAX, SYSCONF },
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{ "LONG_BIT", _SC_LONG_BIT, SYSCONF },
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{ "MB_LEN_MAX", _SC_MB_LEN_MAX, SYSCONF },
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{ "NGROUPS_MAX", _SC_NGROUPS_MAX, SYSCONF },
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{ "NL_ARGMAX", _SC_NL_ARGMAX, SYSCONF },
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{ "NL_LANGMAX", _SC_NL_LANGMAX, SYSCONF },
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{ "NL_MSGMAX", _SC_NL_MSGMAX, SYSCONF },
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{ "NL_NMAX", _SC_NL_NMAX, SYSCONF },
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{ "NL_SETMAX", _SC_NL_SETMAX, SYSCONF },
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{ "NL_TEXTMAX", _SC_NL_TEXTMAX, SYSCONF },
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{ "NSS_BUFLEN_GROUP", _SC_GETGR_R_SIZE_MAX, SYSCONF },
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{ "NSS_BUFLEN_PASSWD", _SC_GETPW_R_SIZE_MAX, SYSCONF },
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{ "NZERO", _SC_NZERO, SYSCONF },
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{ "OPEN_MAX", _SC_OPEN_MAX, SYSCONF },
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{ "PAGESIZE", _SC_PAGESIZE, SYSCONF },
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{ "PAGE_SIZE", _SC_PAGESIZE, SYSCONF },
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{ "PASS_MAX", _SC_PASS_MAX, SYSCONF },
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{ "PTHREAD_DESTRUCTOR_ITERATIONS", _SC_THREAD_DESTRUCTOR_ITERATIONS, SYSCONF },
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{ "PTHREAD_KEYS_MAX", _SC_THREAD_KEYS_MAX, SYSCONF },
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{ "PTHREAD_STACK_MIN", _SC_THREAD_STACK_MIN, SYSCONF },
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{ "PTHREAD_THREADS_MAX", _SC_THREAD_THREADS_MAX, SYSCONF },
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{ "SCHAR_MAX", _SC_SCHAR_MAX, SYSCONF },
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{ "SCHAR_MIN", _SC_SCHAR_MIN, SYSCONF },
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{ "SHRT_MAX", _SC_SHRT_MAX, SYSCONF },
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{ "SHRT_MIN", _SC_SHRT_MIN, SYSCONF },
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{ "SSIZE_MAX", _SC_SSIZE_MAX, SYSCONF },
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{ "TTY_NAME_MAX", _SC_TTY_NAME_MAX, SYSCONF },
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{ "TZNAME_MAX", _SC_TZNAME_MAX, SYSCONF },
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{ "UCHAR_MAX", _SC_UCHAR_MAX, SYSCONF },
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{ "UINT_MAX", _SC_UINT_MAX, SYSCONF },
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{ "UIO_MAXIOV", _SC_UIO_MAXIOV, SYSCONF },
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{ "ULONG_MAX", _SC_ULONG_MAX, SYSCONF },
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{ "USHRT_MAX", _SC_USHRT_MAX, SYSCONF },
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{ "WORD_BIT", _SC_WORD_BIT, SYSCONF },
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{ "_AVPHYS_PAGES", _SC_AVPHYS_PAGES, SYSCONF },
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{ "_NPROCESSORS_CONF", _SC_NPROCESSORS_CONF, SYSCONF },
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{ "_NPROCESSORS_ONLN", _SC_NPROCESSORS_ONLN, SYSCONF },
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{ "_PHYS_PAGES", _SC_PHYS_PAGES, SYSCONF },
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{ "_POSIX_ARG_MAX", _SC_ARG_MAX, SYSCONF },
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{ "_POSIX_ASYNCHRONOUS_IO", _SC_ASYNCHRONOUS_IO, SYSCONF },
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{ "_POSIX_CHILD_MAX", _SC_CHILD_MAX, SYSCONF },
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{ "_POSIX_FSYNC", _SC_FSYNC, SYSCONF },
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{ "_POSIX_JOB_CONTROL", _SC_JOB_CONTROL, SYSCONF },
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{ "_POSIX_MAPPED_FILES", _SC_MAPPED_FILES, SYSCONF },
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{ "_POSIX_MEMLOCK", _SC_MEMLOCK, SYSCONF },
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{ "_POSIX_MEMLOCK_RANGE", _SC_MEMLOCK_RANGE, SYSCONF },
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{ "_POSIX_MEMORY_PROTECTION", _SC_MEMORY_PROTECTION, SYSCONF },
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{ "_POSIX_MESSAGE_PASSING", _SC_MESSAGE_PASSING, SYSCONF },
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{ "_POSIX_NGROUPS_MAX", _SC_NGROUPS_MAX, SYSCONF },
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{ "_POSIX_OPEN_MAX", _SC_OPEN_MAX, SYSCONF },
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{ "_POSIX_PII", _SC_PII, SYSCONF },
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{ "_POSIX_PII_INTERNET", _SC_PII_INTERNET, SYSCONF },
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{ "_POSIX_PII_INTERNET_DGRAM", _SC_PII_INTERNET_DGRAM, SYSCONF },
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{ "_POSIX_PII_INTERNET_STREAM", _SC_PII_INTERNET_STREAM, SYSCONF },
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{ "_POSIX_PII_OSI", _SC_PII_OSI, SYSCONF },
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{ "_POSIX_PII_OSI_CLTS", _SC_PII_OSI_CLTS, SYSCONF },
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{ "_POSIX_PII_OSI_COTS", _SC_PII_OSI_COTS, SYSCONF },
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{ "_POSIX_PII_OSI_M", _SC_PII_OSI_M, SYSCONF },
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{ "_POSIX_PII_SOCKET", _SC_PII_SOCKET, SYSCONF },
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{ "_POSIX_PII_XTI", _SC_PII_XTI, SYSCONF },
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{ "_POSIX_POLL", _SC_POLL, SYSCONF },
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{ "_POSIX_PRIORITIZED_IO", _SC_PRIORITIZED_IO, SYSCONF },
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{ "_POSIX_PRIORITY_SCHEDULING", _SC_PRIORITY_SCHEDULING, SYSCONF },
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{ "_POSIX_REALTIME_SIGNALS", _SC_REALTIME_SIGNALS, SYSCONF },
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{ "_POSIX_SAVED_IDS", _SC_SAVED_IDS, SYSCONF },
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{ "_POSIX_SELECT", _SC_SELECT, SYSCONF },
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{ "_POSIX_SEMAPHORES", _SC_SEMAPHORES, SYSCONF },
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{ "_POSIX_SHARED_MEMORY_OBJECTS", _SC_SHARED_MEMORY_OBJECTS, SYSCONF },
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{ "_POSIX_SSIZE_MAX", _SC_SSIZE_MAX, SYSCONF },
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{ "_POSIX_STREAM_MAX", _SC_STREAM_MAX, SYSCONF },
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{ "_POSIX_SYNCHRONIZED_IO", _SC_SYNCHRONIZED_IO, SYSCONF },
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{ "_POSIX_THREADS", _SC_THREADS, SYSCONF },
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{ "_POSIX_THREAD_ATTR_STACKADDR", _SC_THREAD_ATTR_STACKADDR, SYSCONF },
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{ "_POSIX_THREAD_ATTR_STACKSIZE", _SC_THREAD_ATTR_STACKSIZE, SYSCONF },
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{ "_POSIX_THREAD_PRIORITY_SCHEDULING", _SC_THREAD_PRIORITY_SCHEDULING, SYSCONF },
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{ "_POSIX_THREAD_PRIO_INHERIT", _SC_THREAD_PRIO_INHERIT, SYSCONF },
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{ "_POSIX_THREAD_PRIO_PROTECT", _SC_THREAD_PRIO_PROTECT, SYSCONF },
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{ "_POSIX_THREAD_PROCESS_SHARED", _SC_THREAD_PROCESS_SHARED, SYSCONF },
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{ "_POSIX_THREAD_SAFE_FUNCTIONS", _SC_THREAD_SAFE_FUNCTIONS, SYSCONF },
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{ "_POSIX_TIMERS", _SC_TIMERS, SYSCONF },
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{ "_POSIX_TZNAME_MAX", _SC_TZNAME_MAX, SYSCONF },
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{ "_POSIX_VERSION", _SC_VERSION, SYSCONF },
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{ "_T_IOV_MAX", _SC_T_IOV_MAX, SYSCONF },
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{ "_XOPEN_CRYPT", _SC_XOPEN_CRYPT, SYSCONF },
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{ "_XOPEN_ENH_I18N", _SC_XOPEN_ENH_I18N, SYSCONF },
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{ "_XOPEN_LEGACY", _SC_XOPEN_LEGACY, SYSCONF },
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{ "_XOPEN_REALTIME", _SC_XOPEN_REALTIME, SYSCONF },
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{ "_XOPEN_REALTIME_THREADS", _SC_XOPEN_REALTIME_THREADS, SYSCONF },
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{ "_XOPEN_SHM", _SC_XOPEN_SHM, SYSCONF },
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{ "_XOPEN_UNIX", _SC_XOPEN_UNIX, SYSCONF },
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{ "_XOPEN_VERSION", _SC_XOPEN_VERSION, SYSCONF },
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{ "_XOPEN_XCU_VERSION", _SC_XOPEN_XCU_VERSION, SYSCONF },
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{ "_XOPEN_XPG2", _SC_XOPEN_XPG2, SYSCONF },
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{ "_XOPEN_XPG3", _SC_XOPEN_XPG3, SYSCONF },
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{ "_XOPEN_XPG4", _SC_XOPEN_XPG4, SYSCONF },
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/* POSIX.2 */
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{ "BC_BASE_MAX", _SC_BC_BASE_MAX, SYSCONF },
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{ "BC_DIM_MAX", _SC_BC_DIM_MAX, SYSCONF },
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{ "BC_SCALE_MAX", _SC_BC_SCALE_MAX, SYSCONF },
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{ "BC_STRING_MAX", _SC_BC_STRING_MAX, SYSCONF },
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{ "CHARCLASS_NAME_MAX", _SC_CHARCLASS_NAME_MAX },
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{ "COLL_WEIGHTS_MAX", _SC_COLL_WEIGHTS_MAX, SYSCONF },
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{ "EQUIV_CLASS_MAX", _SC_EQUIV_CLASS_MAX, SYSCONF },
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{ "EXPR_NEST_MAX", _SC_EXPR_NEST_MAX, SYSCONF },
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{ "LINE_MAX", _SC_LINE_MAX, SYSCONF },
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{ "POSIX2_BC_BASE_MAX", _SC_BC_BASE_MAX, SYSCONF },
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{ "POSIX2_BC_DIM_MAX", _SC_BC_DIM_MAX, SYSCONF },
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{ "POSIX2_BC_SCALE_MAX", _SC_BC_SCALE_MAX, SYSCONF },
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{ "POSIX2_BC_STRING_MAX", _SC_BC_STRING_MAX, SYSCONF },
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{ "POSIX2_CHAR_TERM", _SC_2_CHAR_TERM, SYSCONF },
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{ "POSIX2_COLL_WEIGHTS_MAX", _SC_COLL_WEIGHTS_MAX, SYSCONF },
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{ "POSIX2_C_BIND", _SC_2_C_BIND, SYSCONF },
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{ "POSIX2_C_DEV", _SC_2_C_DEV, SYSCONF },
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{ "POSIX2_C_VERSION", _SC_2_C_VERSION, SYSCONF },
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{ "POSIX2_EXPR_NEST_MAX", _SC_EXPR_NEST_MAX, SYSCONF },
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{ "POSIX2_FORT_DEV", _SC_2_FORT_DEV, SYSCONF },
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{ "POSIX2_FORT_RUN", _SC_2_FORT_RUN, SYSCONF },
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{ "POSIX2_LINE_MAX", _SC_LINE_MAX, SYSCONF },
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{ "POSIX2_LOCALEDEF", _SC_2_LOCALEDEF, SYSCONF },
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{ "POSIX2_RE_DUP_MAX", _SC_RE_DUP_MAX, SYSCONF },
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{ "POSIX2_SW_DEV", _SC_2_SW_DEV, SYSCONF },
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{ "POSIX2_UPE", _SC_2_UPE, SYSCONF },
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{ "POSIX2_VERSION", _SC_2_VERSION, SYSCONF },
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{ "RE_DUP_MAX", _SC_RE_DUP_MAX, SYSCONF },
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{ "PATH", _CS_PATH, CONFSTR },
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{ "CS_PATH", _CS_PATH, CONFSTR },
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/* LFS */
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{ "LFS_CFLAGS", _CS_LFS_CFLAGS, CONFSTR },
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{ "LFS_LDFLAGS", _CS_LFS_LDFLAGS, CONFSTR },
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{ "LFS_LIBS", _CS_LFS_LIBS, CONFSTR },
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{ "LFS_LINTFLAGS", _CS_LFS_LINTFLAGS, CONFSTR },
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{ "LFS64_CFLAGS", _CS_LFS64_CFLAGS, CONFSTR },
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{ "LFS64_LDFLAGS", _CS_LFS64_LDFLAGS, CONFSTR },
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{ "LFS64_LIBS", _CS_LFS64_LIBS, CONFSTR },
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{ "LFS64_LINTFLAGS", _CS_LFS64_LINTFLAGS, CONFSTR },
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/* Programming environments. */
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{ "XBS5_ILP32_OFF32", _SC_XBS5_ILP32_OFF32, SYSCONF },
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{ "XBS5_ILP32_OFF32_CFLAGS", _CS_XBS5_ILP32_OFF32_CFLAGS, CONFSTR },
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{ "XBS5_ILP32_OFF32_LDFLAGS", _CS_XBS5_ILP32_OFF32_LDFLAGS, CONFSTR },
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{ "XBS5_ILP32_OFF32_LIBS", _CS_XBS5_ILP32_OFF32_LIBS, CONFSTR },
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{ "XBS5_ILP32_OFF32_LINTFLAGS", _CS_XBS5_ILP32_OFF32_LINTFLAGS, CONFSTR },
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{ "XBS5_ILP32_OFFBIG", _SC_XBS5_ILP32_OFFBIG, SYSCONF },
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{ "XBS5_ILP32_OFFBIG_CFLAGS", _CS_XBS5_ILP32_OFFBIG_CFLAGS, CONFSTR },
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{ "XBS5_ILP32_OFFBIG_LDFLAGS", _CS_XBS5_ILP32_OFFBIG_LDFLAGS, CONFSTR },
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{ "XBS5_ILP32_OFFBIG_LIBS", _CS_XBS5_ILP32_OFFBIG_LIBS, CONFSTR },
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{ "XBS5_ILP32_OFFBIG_LINTFLAGS", _CS_XBS5_ILP32_OFFBIG_LINTFLAGS, CONFSTR },
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{ "XBS5_LP64_OFF64", _SC_XBS5_LP64_OFF64, SYSCONF },
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{ "XBS5_LP64_OFF64_CFLAGS", _CS_XBS5_LP64_OFF64_CFLAGS, CONFSTR },
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{ "XBS5_LP64_OFF64_LDFLAGS", _CS_XBS5_LP64_OFF64_LDFLAGS, CONFSTR },
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{ "XBS5_LP64_OFF64_LIBS", _CS_XBS5_LP64_OFF64_LIBS, CONFSTR },
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{ "XBS5_LP64_OFF64_LINTFLAGS", _CS_XBS5_LP64_OFF64_LINTFLAGS, CONFSTR },
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{ "XBS5_LPBIG_OFFBIG", _SC_XBS5_LPBIG_OFFBIG, SYSCONF },
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{ "XBS5_LPBIG_OFFBIG_CFLAGS", _CS_XBS5_LPBIG_OFFBIG_CFLAGS, CONFSTR },
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{ "XBS5_LPBIG_OFFBIG_LDFLAGS", _CS_XBS5_LPBIG_OFFBIG_LDFLAGS, CONFSTR },
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{ "XBS5_LPBIG_OFFBIG_LIBS", _CS_XBS5_LPBIG_OFFBIG_LIBS, CONFSTR },
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{ "XBS5_LPBIG_OFFBIG_LINTFLAGS", _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS, CONFSTR },
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{ NULL, 0, SYSCONF }
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};
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extern const char *__progname;
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static void
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usage (void)
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{
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fprintf (stderr, _("Usage: %s variable_name [pathname]\n"), __progname);
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exit (2);
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}
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int
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main (int argc, char *argv[])
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{
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register const struct conf *c;
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/* Set locale. Do not set LC_ALL because the other categories must
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not be affected (according to POSIX.2). */
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setlocale (LC_CTYPE, "");
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setlocale (LC_MESSAGES, "");
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/* Initialize the message catalog. */
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textdomain (PACKAGE);
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if (argc > 1 && strcmp (argv[1], "--version") == 0)
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{
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fprintf (stderr, "getconf (GNU %s) %s\n", PACKAGE, VERSION);
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fprintf (stderr, gettext ("\
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Copyright (C) %s Free Software Foundation, Inc.\n\
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This is free software; see the source for copying conditions. There is NO\n\
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warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\
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"), "1991, 1992, 1995, 1996, 1997");
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fprintf (stderr, gettext ("Written by %s.\n"), "Roland McGrath");
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return 0;
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}
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if (argc < 2 || argc > 3)
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usage ();
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for (c = vars; c->name != NULL; ++c)
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if (!strcmp (c->name, argv[1]))
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{
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long int value;
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size_t clen;
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char *cvalue;
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switch (c->call)
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{
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case PATHCONF:
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if (argc < 3)
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usage ();
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errno = 0;
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value = pathconf (argv[2], c->call_name);
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if (value == -1)
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{
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if (errno)
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error (3, errno, "pathconf: %s", argv[2]);
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else
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puts (_("undefined"));
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}
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else
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printf ("%ld\n", value);
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exit (0);
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case SYSCONF:
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if (argc > 2)
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usage ();
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value = sysconf (c->call_name);
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if (value == -1l)
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if (c->call_name == _SC_UINT_MAX
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|| c->call_name == _SC_ULONG_MAX)
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printf ("%lu\n", value);
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else
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puts (_("undefined"));
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else
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printf ("%ld\n", value);
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exit (0);
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case CONFSTR:
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if (argc > 2)
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usage ();
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clen = confstr (c->call_name, (char *) NULL, 0);
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cvalue = (char *) malloc (clen);
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if (cvalue == NULL)
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error (3, 0, _("memory exhausted"));
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if (confstr (c->call_name, cvalue, clen) != clen)
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error (3, errno, "confstr");
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printf ("%.*s\n", (int) clen, cvalue);
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exit (0);
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}
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}
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error (2, 0, _("Unrecognized variable `%s'"), argv[1]);
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/* NOTREACHED */
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return 2;
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}
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