538 lines
17 KiB
C
538 lines
17 KiB
C
/*
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* ORIGINAL COPYRIGHT STATEMENT:
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*
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* Copyright (c) 1994 Winning Strategies, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Winning Strategies, Inc.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* POSIX.2 getconf utility
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*
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* Originally Written by:
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* J.T. Conklin (jtc@wimsey.com), Winning Strategies, Inc.
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*
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* Heavily modified for inclusion in bash by
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* Chet Ramey <chet@po.cwru.edu>
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*/
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#include <stdio.h>
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#include <limits.h>
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#include <locale.h>
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#include <unistd.h>
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#include <errno.h>
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#include "bashansi.h"
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#include "shell.h"
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#include "builtins.h"
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#include "stdc.h"
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#include "common.h"
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#include "bashgetopt.h"
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struct conf_variable
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{
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const char *name;
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enum { SYSCONF, CONFSTR, PATHCONF, CONSTANT } type;
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long value;
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};
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/* Some systems do not define these; use POSIX.2 minimum recommended values. */
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#ifndef _POSIX2_COLL_WEIGHTS_MAX
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# define _POSIX2_COLL_WEIGHTS_MAX 2
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#endif
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static const struct conf_variable conf_table[] =
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{
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/* POSIX.2 Configurable Variable Values */
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{ "PATH", CONFSTR, _CS_PATH },
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{ "CS_PATH", CONFSTR, _CS_PATH },
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/* POSIX.1 Configurable Variable Values (only Solaris?) */
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#if defined (_CS_LFS_CFLAGS)
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{ "LFS_CFLAGS", CONFSTR, _CS_LFS_CFLAGS },
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{ "LFS_LDFLAGS", CONFSTR, _CS_LFS_LDFLAGS },
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{ "LFS_LIBS", CONFSTR, _CS_LFS_LIBS },
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{ "LFS_LINTFLAGS", CONFSTR, _CS_LFS_LINTFLAGS },
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#endif
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#if defined (_CS_LFS64_CFLAGS)
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{ "LFS64_CFLAGS", CONFSTR, _CS_LFS64_CFLAGS },
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{ "LFS64_LDFLAGS", CONFSTR, _CS_LFS64_LDFLAGS },
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{ "LFS64_LIBS", CONFSTR, _CS_LFS64_LIBS },
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{ "LFS64_LINTFLAGS", CONFSTR, _CS_LFS64_LINTFLAGS },
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#endif
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/* Single UNIX Specification version 2 Configurable Variable Values */
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#if defined (_CS_XBS5_ILP32_OFF32_CFLAGS)
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{ "XBS5_ILP32_OFF32_CFLAGS", CONFSTR, _CS_XBS5_ILP32_OFF32_CFLAGS },
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{ "XBS5_ILP32_OFF32_LDFLAGS", CONFSTR, _CS_XBS5_ILP32_OFF32_LDFLAGS },
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{ "XBS5_ILP32_OFF32_LIBS", CONFSTR, _CS_XBS5_ILP32_OFF32_LIBS },
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{ "XBS5_ILP32_OFF32_LINTFLAGS", CONFSTR, _CS_XBS5_ILP32_OFF32_LINTFLAGS },
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{ "XBS5_ILP32_OFFBIG_CFLAGS", CONFSTR, _CS_XBS5_ILP32_OFFBIG_CFLAGS },
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{ "XBS5_ILP32_OFFBIG_LDFLAGS", CONFSTR, _CS_XBS5_ILP32_OFFBIG_LDFLAGS },
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{ "XBS5_ILP32_OFFBIG_LIBS", CONFSTR, _CS_XBS5_ILP32_OFFBIG_LIBS },
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{ "XBS5_ILP32_OFFBIG_LINTFLAGS", CONFSTR, _CS_XBS5_ILP32_OFFBIG_LINTFLAGS },
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{ "XBS5_LP64_OFF64_CFLAGS", CONFSTR, _CS_XBS5_LP64_OFF64_CFLAGS },
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{ "XBS5_LP64_OFF64_LDFLAGS", CONFSTR, _CS_XBS5_LP64_OFF64_LDFLAGS },
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{ "XBS5_LP64_OFF64_LIBS", CONFSTR, _CS_XBS5_LP64_OFF64_LIBS },
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{ "XBS5_LP64_OFF64_LINTFLAGS", CONFSTR, _CS_XBS5_LP64_OFF64_LINTFLAGS },
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{ "XBS5_LPBIG_OFFBIG_CFLAGS", CONFSTR, _CS_XBS5_LPBIG_OFFBIG_CFLAGS },
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{ "XBS5_LPBIG_OFFBIG_LDFLAGS", CONFSTR, _CS_XBS5_LPBIG_OFFBIG_LDFLAGS },
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{ "XBS5_LPBIG_OFFBIG_LIBS", CONFSTR, _CS_XBS5_LPBIG_OFFBIG_LIBS },
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{ "XBS5_LPBIG_OFFBIG_LINTFLAGS", CONFSTR, _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS },
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#endif /* _CS_XBS5_ILP32_OFF32_CFLAGS */
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/* POSIX.2 Utility Limit Minimum Values */
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{ "POSIX2_BC_BASE_MAX", CONSTANT, _POSIX2_BC_BASE_MAX },
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{ "POSIX2_BC_DIM_MAX", CONSTANT, _POSIX2_BC_DIM_MAX },
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{ "POSIX2_BC_SCALE_MAX", CONSTANT, _POSIX2_BC_SCALE_MAX },
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{ "POSIX2_BC_STRING_MAX", CONSTANT, _POSIX2_BC_STRING_MAX },
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{ "POSIX2_COLL_WEIGHTS_MAX", CONSTANT, _POSIX2_COLL_WEIGHTS_MAX },
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#if defined (_POSIX2_EQUIV_CLASS_MAX)
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{ "POSIX2_EQUIV_CLASS_MAX", CONSTANT, _POSIX2_EQUIV_CLASS_MAX },
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#endif
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{ "POSIX2_EXPR_NEST_MAX", CONSTANT, _POSIX2_EXPR_NEST_MAX },
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{ "POSIX2_LINE_MAX", CONSTANT, _POSIX2_LINE_MAX },
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{ "POSIX2_RE_DUP_MAX", CONSTANT, _POSIX2_RE_DUP_MAX },
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#if defined (_POSIX2_VERSION)
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{ "POSIX2_VERSION", CONSTANT, _POSIX2_VERSION },
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#endif
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/* POSIX.1 Minimum Values */
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{ "_POSIX_ARG_MAX", CONSTANT, _POSIX_ARG_MAX },
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{ "_POSIX_CHILD_MAX", CONSTANT, _POSIX_CHILD_MAX },
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{ "_POSIX_LINK_MAX", CONSTANT, _POSIX_LINK_MAX },
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{ "_POSIX_MAX_CANON", CONSTANT, _POSIX_MAX_CANON },
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{ "_POSIX_MAX_INPUT", CONSTANT, _POSIX_MAX_INPUT },
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{ "_POSIX_NAME_MAX", CONSTANT, _POSIX_NAME_MAX },
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{ "_POSIX_NGROUPS_MAX", CONSTANT, _POSIX_NGROUPS_MAX },
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{ "_POSIX_OPEN_MAX", CONSTANT, _POSIX_OPEN_MAX },
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{ "_POSIX_PATH_MAX", CONSTANT, _POSIX_PIPE_BUF },
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{ "_POSIX_PIPE_BUF", CONSTANT, _POSIX_PIPE_BUF },
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{ "_POSIX_SSIZE_MAX", CONSTANT, _POSIX_SSIZE_MAX },
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{ "_POSIX_STREAM_MAX", CONSTANT, _POSIX_STREAM_MAX },
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{ "_POSIX_TZNAME_MAX", CONSTANT, _POSIX_TZNAME_MAX },
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/* POSIX.2 Symbolic Utility Limits */
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{ "BC_BASE_MAX", SYSCONF, _SC_BC_BASE_MAX },
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{ "BC_DIM_MAX", SYSCONF, _SC_BC_DIM_MAX },
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{ "BC_SCALE_MAX", SYSCONF, _SC_BC_SCALE_MAX },
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{ "BC_STRING_MAX", SYSCONF, _SC_BC_STRING_MAX },
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{ "COLL_WEIGHTS_MAX", SYSCONF, _SC_COLL_WEIGHTS_MAX },
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{ "EXPR_NEST_MAX", SYSCONF, _SC_EXPR_NEST_MAX },
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{ "LINE_MAX", SYSCONF, _SC_LINE_MAX },
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{ "RE_DUP_MAX", SYSCONF, _SC_RE_DUP_MAX },
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/* POSIX.2 Optional Facility Configuration Values */
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{ "POSIX2_C_BIND", SYSCONF, _SC_2_C_BIND },
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{ "POSIX2_C_DEV", SYSCONF, _SC_2_C_DEV },
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#if defined (_SC_2_C_VERSION)
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{ "POSIX2_C_VERSION", SYSCONF, _SC_2_C_VERSION },
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#endif
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#if defined (_SC_2_CHAR_TERM)
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{ "POSIX2_CHAR_TERM", SYSCONF, _SC_2_CHAR_TERM },
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#endif
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{ "POSIX2_FORT_DEV", SYSCONF, _SC_2_FORT_DEV },
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{ "POSIX2_FORT_RUN", SYSCONF, _SC_2_FORT_RUN },
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{ "POSIX2_LOCALEDEF", SYSCONF, _SC_2_LOCALEDEF },
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{ "POSIX2_SW_DEV", SYSCONF, _SC_2_SW_DEV },
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#if defined (_SC2_UPE)
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{ "POSIX2_UPE", SYSCONF, _SC_2_UPE },
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#endif
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#if !defined (_POSIX2_VERSION) && defined (_SC_2_VERSION)
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{ "POSIX2_VERSION" SYSCONF, _SC_2_VERSION },
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#endif
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/* POSIX.1 Configurable System Variables */
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{ "ARG_MAX", SYSCONF, _SC_ARG_MAX },
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{ "CHILD_MAX", SYSCONF, _SC_CHILD_MAX },
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{ "CLK_TCK", SYSCONF, _SC_CLK_TCK },
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{ "NGROUPS_MAX", SYSCONF, _SC_NGROUPS_MAX },
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{ "OPEN_MAX", SYSCONF, _SC_OPEN_MAX },
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{ "STREAM_MAX", SYSCONF, _SC_STREAM_MAX },
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{ "TZNAME_MAX", SYSCONF, _SC_TZNAME_MAX },
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{ "_POSIX_JOB_CONTROL", SYSCONF, _SC_JOB_CONTROL },
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{ "_POSIX_SAVED_IDS", SYSCONF, _SC_SAVED_IDS },
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{ "_POSIX_VERSION", SYSCONF, _SC_VERSION },
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/* POSIX.1 Optional Facility Configuration Values */
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#if defined (_SC_ASYNCHRONOUS_IO)
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{ "_POSIX_ASYNCHRONOUS_IO", SYSCONF, _SC_ASYNCHRONOUS_IO },
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#endif
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#if defined (_SC_FSYNC)
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{ "_POSIX_FSYNC", SYSCONF, _SC_FSYNC },
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#endif
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#if defined (_SC_MAPPED_FILES)
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{ "_POSIX_MAPPED_FILES", SYSCONF, _SC_MAPPED_FILES },
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#endif
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#if defined (_SC_MEMLOCK)
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{ "_POSIX_MEMLOCK", SYSCONF, _SC_MEMLOCK },
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#endif
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#if defined (_SC_MEMLOCK_RANGE)
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{ "_POSIX_MEMLOCK_RANGE", SYSCONF, _SC_MEMLOCK_RANGE },
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#endif
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#if defined (_SC_MEMORY_PROTECTION)
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{ "_POSIX_MEMORY_PROTECTION", SYSCONF, _SC_MEMORY_PROTECTION },
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#endif
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#if defined (_SC_MESSAGE_PASSING)
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{ "_POSIX_MESSAGE_PASSING", SYSCONF, _SC_MESSAGE_PASSING },
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#endif
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#if defined (SC_PRIORITIZED_IO)
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{ "_POSIX_PRIORITIZED_IO", SYSCONF, _SC_PRIORITIZED_IO },
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#endif
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#if defined (_SC_PRIORITY_SCHEDULING)
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{ "_POSIX_PRIORITY_SCHEDULING", SYSCONF, _SC_PRIORITY_SCHEDULING },
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#endif
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#if defined (_SC_REALTIME_SIGNALS)
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{ "_POSIX_REALTIME_SIGNALS", SYSCONF, _SC_REALTIME_SIGNALS },
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#endif
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#if defined (_SC_SEMAPHORES)
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{ "_POSIX_SEMAPHORES", SYSCONF, _SC_SEMAPHORES },
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#endif
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#if defined (_SC_SHARED_MEMORY_OBJECTS)
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{ "_POSIX_SHARED_MEMORY_OBJECTS", SYSCONF, _SC_SHARED_MEMORY_OBJECTS },
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#endif
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#if defined (_SC_SYNCHRONIZED_IO)
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{ "_POSIX_SYNCHRONIZED_IO", SYSCONF, _SC_SYNCHRONIZED_IO },
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#endif
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#if defined (_SC_TIMERS)
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{ "_POSIX_TIMERS", SYSCONF, _SC_TIMERS },
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#endif
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#if defined (_SC_THREADS)
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{ "_POSIX_THREADS", SYSCONF, _SC_THREADS },
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{ "_POSIX_THREAD_ATTR_STACKADDR", SYSCONF, _SC_THREAD_ATTR_STACKADDR },
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{ "_POSIX_THREAD_ATTR_STACKSIZE", SYSCONF, _SC_THREAD_ATTR_STACKSIZE },
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{ "_POSIX_THREAD_PRIORITY_SCHEDULING", SYSCONF, _SC_THREAD_PRIORITY_SCHEDULING },
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{ "_POSIX_THREAD_PRIO_INHERIT", SYSCONF, _SC_THREAD_PRIO_INHERIT },
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{ "_POSIX_THREAD_PRIO_PROTECT", SYSCONF, _SC_THREAD_PRIO_PROTECT },
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{ "_POSIX_THREAD_PROCESS_SHARED", SYSCONF, _SC_THREAD_PROCESS_SHARED },
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# if defined (_SC_THREAD_SAFE_FUNCTIONS)
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{ "_POSIX_THREAD_SAFE_FUNCTIONS", SYSCONF, _SC_THREAD_SAFE_FUNCTIONS },
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# endif
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#endif /* _SC_THREADS */
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/* XPG 4.2 Configurable System Variables. */
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#if defined (_SC_ATEXIT_MAX)
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{ "ATEXIT_MAX", SYSCONF, _SC_ATEXIT_MAX },
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#endif
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#if defined (_SC_IOV_MAX)
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{ "IOV_MAX", SYSCONF, _SC_IOV_MAX },
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#endif
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#if defined (_SC_PAGESIZE)
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{ "PAGESIZE", SYSCONF, _SC_PAGESIZE },
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#endif
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#if defined (_SC_PAGE_SIZE)
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{ "PAGE_SIZE", SYSCONF, _SC_PAGE_SIZE },
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#endif
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#if defined (_SC_AIO_LISTIO_MAX)
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{ "AIO_LISTIO_MAX", SYSCONF, _SC_AIO_LISTIO_MAX },
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{ "AIO_MAX", SYSCONF, _SC_AIO_MAX },
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{ "AIO_PRIO_DELTA_MAX", SYSCONF, _SC_AIO_PRIO_DELTA_MAX },
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{ "DELAYTIMER_MAX", SYSCONF, _SC_DELAYTIMER_MAX },
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#if defined (_SC_GETGR_R_SIZE_MAX)
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{ "GETGR_R_SIZE_MAX", SYSCONF, _SC_GETGR_R_SIZE_MAX },
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#endif
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#if defined (_SC_GETPW_R_SIZE_MAX)
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{ "GETPW_R_SIZE_MAX", SYSCONF, _SC_GETPW_R_SIZE_MAX },
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#endif
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{ "MQ_OPEN_MAX", SYSCONF, _SC_MQ_OPEN_MAX },
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{ "MQ_PRIO_MAX", SYSCONF, _SC_MQ_PRIO_MAX },
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{ "RTSIG_MAX", SYSCONF, _SC_RTSIG_MAX },
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{ "SEM_NSEMS_MAX", SYSCONF, _SC_SEM_NSEMS_MAX },
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{ "SEM_VALUE_MAX", SYSCONF, _SC_SEM_VALUE_MAX },
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{ "SIGQUEUE_MAX", SYSCONF, _SC_SIGQUEUE_MAX },
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{ "TIMER_MAX", SYSCONF, _SC_TIMER_MAX },
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#endif /* _SC_AIO_LISTIO_MAX */
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#if defined (_SC_LOGIN_NAME_MAX)
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{ "LOGIN_NAME_MAX", SYSCONF, _SC_LOGIN_NAME_MAX },
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#endif
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#if defined (_SC_LOGNAME_MAX)
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{ "LOGNAME_MAX", SYSCONF, _SC_LOGNAME_MAX },
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#endif
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#if defined (_SC_TTY_NAME_MAX)
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{ "TTY_NAME_MAX", SYSCONF, _SC_TTY_NAME_MAX },
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#endif
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#if defined (_SC_PTHREAD_DESTRUCTOR_ITERATIONS)
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{ "PTHREAD_DESTRUCTOR_ITERATIONS", SYSCONF, _SC_THREAD_DESTRUCTOR_ITERATIONS },
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{ "PTHREAD_KEYS_MAX", SYSCONF, _SC_THREAD_KEYS_MAX },
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{ "PTHREAD_STACK_MIN", SYSCONF, _SC_THREAD_STACK_MIN },
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{ "PTHREAD_THREADS_MAX", SYSCONF, _SC_THREAD_THREADS_MAX },
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#endif /* _SC_PTHREAD_DESTRUCTOR_ITERATIONS */
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/* XPG 4.2 Optional Facility Configuration Values */
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#if defined (_SC_XOPEN_UNIX)
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{ "_XOPEN_UNIX", SYSCONF, _SC_XOPEN_UNIX },
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{ "_XOPEN_CRYPT", SYSCONF, _SC_XOPEN_CRYPT },
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{ "_XOPEN_ENH_I18N", SYSCONF, _SC_XOPEN_ENH_I18N },
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{ "_XOPEN_SHM", SYSCONF, _SC_XOPEN_SHM },
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{ "_XOPEN_VERSION", SYSCONF, _SC_XOPEN_VERSION },
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# if defined (_SC_XOPEN_XCU_VERSION)
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{ "_XOPEN_XCU_VERSION", SYSCONF, _SC_XOPEN_XCU_VERSION },
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# endif
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#endif
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#if defined (_SC_XOPEN_REALTIME)
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{ "_XOPEN_REALTIME", SYSCONF, _SC_XOPEN_REALTIME },
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{ "_XOPEN_REALTIME_THREADS", SYSCONF, _SC_XOPEN_REALTIME_THREADS },
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#endif
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#if defined (_SC_XOPEN_LEGACY)
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{ "_XOPEN_LEGACY", SYSCONF, _SC_XOPEN_LEGACY },
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#endif /* _SC_XOPEN_LEGACY */
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/* Single UNIX Specification version 2 Optional Facility Configuration Values */
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#if defined (_SC_XBS5_ILP32_OFF32)
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{ "_XBS5_ILP32_OFF32", SYSCONF, _SC_XBS5_ILP32_OFF32 },
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{ "_XBS5_ILP32_OFFBIG", SYSCONF, _SC_XBS5_ILP32_OFFBIG },
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{ "_XBS5_LP64_OFF64", SYSCONF, _SC_XBS5_LP64_OFF64 },
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{ "_XBS5_LPBIG_OFFBIG", SYSCONF, _SC_XBS5_LPBIG_OFFBIG },
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#endif /* _SC_XBS5_ILP32_OFF32 */
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/* POSIX.1 Configurable Pathname Values */
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{ "LINK_MAX", PATHCONF, _PC_LINK_MAX },
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{ "MAX_CANON", PATHCONF, _PC_MAX_CANON },
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{ "MAX_INPUT", PATHCONF, _PC_MAX_INPUT },
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{ "NAME_MAX", PATHCONF, _PC_NAME_MAX },
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{ "PATH_MAX", PATHCONF, _PC_PATH_MAX },
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{ "PIPE_BUF", PATHCONF, _PC_PIPE_BUF },
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{ "_POSIX_CHOWN_RESTRICTED", PATHCONF, _PC_CHOWN_RESTRICTED },
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{ "_POSIX_NO_TRUNC", PATHCONF, _PC_NO_TRUNC },
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{ "_POSIX_VDISABLE", PATHCONF, _PC_VDISABLE },
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/* XPG 4.2 Configurable Pathname Values */
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#if defined (_PC_FILESIZEBITS)
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{ "FILESIZEBITS", PATHCONF, _PC_FILESIZEBITS },
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#endif
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#if defined (_PC_ASYNC_IO)
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{ "_POSIX_ASYNC_IO", PATHCONF, _PC_ASYNC_IO },
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#endif
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#if defined (_PC_PRIO_IO)
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{ "_POSIX_PRIO_IO", PATHCONF, _PC_PRIO_IO },
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#endif
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#if defined (_PC_SYNC_IO)
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{ "_POSIX_SYNC_IO", PATHCONF, _PC_SYNC_IO },
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#endif
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{ NULL }
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};
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static int num_getconf_variables = sizeof(conf_table) / sizeof(struct conf_variable) - 1;
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extern char *this_command_name;
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extern char *xmalloc ();
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extern char **make_builtin_argv ();
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static void getconf_help ();
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static int getconf_print ();
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static int getconf_one ();
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static int getconf_all ();
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int
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getconf_builtin (list)
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WORD_LIST *list;
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{
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int c, r, opt, aflag;
|
|
char **v;
|
|
|
|
aflag = 0;
|
|
reset_internal_getopt();
|
|
while ((opt = internal_getopt (list, "ah")) != -1) {
|
|
switch (opt) {
|
|
case 'a':
|
|
aflag = 1;
|
|
break;
|
|
case 'h':
|
|
getconf_help();
|
|
return(EXECUTION_SUCCESS);
|
|
default:
|
|
builtin_usage();
|
|
return(EX_USAGE);
|
|
}
|
|
}
|
|
|
|
list = loptend;
|
|
if ((aflag == 0 && list == 0) || (aflag && list) || list_length(list) > 2) {
|
|
builtin_usage();
|
|
return(EX_USAGE);
|
|
}
|
|
|
|
r = aflag ? getconf_all() : getconf_one(list);
|
|
|
|
return r;
|
|
}
|
|
|
|
static void
|
|
getconf_help()
|
|
{
|
|
const struct conf_variable *cp;
|
|
register int i, column;
|
|
|
|
builtin_usage();
|
|
printf("Acceptable variable names are:\n");
|
|
for (cp = conf_table; cp->name != NULL; cp++) {
|
|
if (cp->type == PATHCONF)
|
|
printf("%s pathname\n", cp->name);
|
|
else
|
|
printf("%s\n", cp->name);
|
|
}
|
|
}
|
|
|
|
static int
|
|
getconf_print(cp, vpath, all)
|
|
struct conf_variable *cp;
|
|
char *vpath;
|
|
int all;
|
|
{
|
|
long val;
|
|
char *sval;
|
|
size_t slen;
|
|
|
|
switch (cp->type) {
|
|
case CONSTANT:
|
|
printf("%ld\n", cp->value);
|
|
break;
|
|
|
|
case CONFSTR:
|
|
errno = 0;
|
|
slen = confstr (cp->value, (char *) 0, (size_t) 0);
|
|
if (slen == 0) {
|
|
if (errno != 0) {
|
|
if (all)
|
|
printf ("getconf: %s\n", strerror(errno));
|
|
else
|
|
builtin_error ("%s", strerror(errno));
|
|
} else
|
|
printf ("undefined\n");
|
|
return (EXECUTION_FAILURE);
|
|
}
|
|
sval = xmalloc(slen);
|
|
|
|
confstr(cp->value, sval, slen);
|
|
printf("%s\n", sval);
|
|
free(sval);
|
|
break;
|
|
|
|
case SYSCONF:
|
|
errno = 0;
|
|
if ((val = sysconf(cp->value)) == -1) {
|
|
if (errno != 0) {
|
|
if (all)
|
|
printf("getconf: %s\n", strerror (errno));
|
|
else
|
|
builtin_error ("%s", strerror (errno));
|
|
return (EXECUTION_FAILURE);
|
|
}
|
|
|
|
printf ("undefined\n");
|
|
} else {
|
|
printf("%ld\n", val);
|
|
}
|
|
break;
|
|
|
|
case PATHCONF:
|
|
errno = 0;
|
|
if ((val = pathconf(vpath, cp->value)) == -1) {
|
|
if (errno != 0) {
|
|
if (all)
|
|
printf("getconf: %s: %s\n", vpath, strerror (errno));
|
|
else
|
|
builtin_error ("%s: %s", vpath, strerror (errno));
|
|
return (EXECUTION_FAILURE);
|
|
}
|
|
|
|
printf ("undefined\n");
|
|
} else {
|
|
printf ("%ld\n", val);
|
|
}
|
|
break;
|
|
}
|
|
|
|
return (ferror(stdout) ? EXECUTION_FAILURE : EXECUTION_SUCCESS);
|
|
}
|
|
|
|
static int
|
|
getconf_all()
|
|
{
|
|
const struct conf_variable *cp;
|
|
int ret;
|
|
|
|
ret = EXECUTION_SUCCESS;
|
|
for (cp = conf_table; cp->name != NULL; cp++) {
|
|
printf("%-35s", cp->name);
|
|
if (getconf_print(cp, ".", 1) == EXECUTION_FAILURE)
|
|
ret = EXECUTION_FAILURE;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static int
|
|
getconf_one(list)
|
|
WORD_LIST *list;
|
|
{
|
|
const struct conf_variable *cp;
|
|
char *vname, *vpath;
|
|
|
|
vname = list->word->word;
|
|
vpath = (list->next && list->next->word) ? list->next->word->word
|
|
: (char *)NULL;
|
|
|
|
for (cp = conf_table; cp->name != NULL; cp++) {
|
|
if (strcmp(vname, cp->name) == 0)
|
|
break;
|
|
}
|
|
if (cp->name == NULL) {
|
|
builtin_error ("%s: unknown variable", vname);
|
|
return (EXECUTION_FAILURE);
|
|
}
|
|
|
|
if (cp->type == PATHCONF) {
|
|
if (list->next == 0) {
|
|
builtin_usage();
|
|
return(EX_USAGE);
|
|
}
|
|
} else {
|
|
if (list->next) {
|
|
builtin_usage();
|
|
return(EX_USAGE);
|
|
}
|
|
}
|
|
|
|
return (getconf_print(cp, vpath, 0));
|
|
}
|
|
|
|
static char *getconf_doc[] = {
|
|
"getconf writes the current value of a configurable system limit or",
|
|
"option variable to the standard output.",
|
|
(char *)NULL
|
|
};
|
|
|
|
struct builtin getconf_struct = {
|
|
"getconf",
|
|
getconf_builtin,
|
|
BUILTIN_ENABLED,
|
|
getconf_doc,
|
|
"getconf -a or getconf -h or getconf sysvar or getconf pathvar pathname",
|
|
0
|
|
};
|