/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2009 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ /* * Copyright 1985, 1993 by Mortice Kern Systems Inc. All rights reserved. * */ /* * Copyright (c) 2018, Joyent, Inc. */ /* * getconf -- POSIX.2 compatible utility to query configuration specific * parameters. * -- XPG4 support added June/93 * * -- XPG5 support added Dec/97 * * -- XPG6 support added May/2003 */ #include #include #include #include #include #include #include #include #include extern size_t confstr(int, char *, size_t); static int aflag = 0; #define INVAL_ARG "getconf: Invalid argument (%s)\n" #define INVAL_PATHARG "getconf: Invalid argument (%s or %s)\n" /* * Notes: * The sctab.value field is defined to be a long. * There are some values that are "unsigned long"; these values * can be stored in a "long" field but when output, must be printed * as an unsigned value. Thus, these values must have UNSIGNED_VALUE bit * set in sctab.flag field. * * There are 2 different ways to indicate a symbol is undefined: * 1) sctab.flag = UNDEFINED * 2) or sctab.value = -1 (and if !UNDEFINED and !UNSIGNED_VALUE) * * There are a group of symbols (e.g CHAR_MIN, INT_MAX, INT_MIN, LONG_BIT ...) * which we may set to -1 if they are not pre-defined in a system header file. * This is used to indicate that these symbols are "undefined". * We are assuming that these symbols cannot reasonably have a value of -1 * if they were defined in a system header file. * (Unless of course -1 can be used to indicate "undefined" for that symbol) */ static struct sctab { long value; char *name; enum { SELFCONF, SYSCONF, PATHCONF, CONFSTR } type; int flag; /* bit fields for sctab.flag member */ #define NOFLAGS 0 /* no special indicators */ #define UNDEFINED 1 /* value is known undefined at compile time */ #define UNSIGNED_VALUE 2 /* value is an unsigned */ } sctab[] = { /* * Some entries in this structure have both leading _ and non leading _ * versions for compatibility with various versions of the specifications. * It is not expected that both forms will be required for new entries. */ /* POSIX.2-1992 table 2-17 */ _POSIX2_BC_BASE_MAX, "POSIX2_BC_BASE_MAX", SELFCONF, NOFLAGS, _POSIX2_BC_BASE_MAX, "_POSIX2_BC_BASE_MAX", SELFCONF, NOFLAGS, _POSIX2_BC_DIM_MAX, "POSIX2_BC_DIM_MAX", SELFCONF, NOFLAGS, _POSIX2_BC_DIM_MAX, "_POSIX2_BC_DIM_MAX", SELFCONF, NOFLAGS, _POSIX2_BC_SCALE_MAX, "POSIX2_BC_SCALE_MAX", SELFCONF, NOFLAGS, _POSIX2_BC_SCALE_MAX, "_POSIX2_BC_SCALE_MAX", SELFCONF, NOFLAGS, _POSIX2_BC_STRING_MAX, "POSIX2_BC_STRING_MAX", SELFCONF, NOFLAGS, _POSIX2_BC_STRING_MAX, "_POSIX2_BC_STRING_MAX", SELFCONF, NOFLAGS, _POSIX2_COLL_WEIGHTS_MAX, "POSIX2_COLL_WEIGHTS_MAX", SELFCONF, NOFLAGS, _POSIX2_COLL_WEIGHTS_MAX, "_POSIX2_COLL_WEIGHTS_MAX", SELFCONF, NOFLAGS, _POSIX2_EXPR_NEST_MAX, "POSIX2_EXPR_NEST_MAX", SELFCONF, NOFLAGS, _POSIX2_EXPR_NEST_MAX, "_POSIX2_EXPR_NEST_MAX", SELFCONF, NOFLAGS, _POSIX2_LINE_MAX, "POSIX2_LINE_MAX", SELFCONF, NOFLAGS, _POSIX2_LINE_MAX, "_POSIX2_LINE_MAX", SELFCONF, NOFLAGS, _POSIX2_RE_DUP_MAX, "POSIX2_RE_DUP_MAX", SELFCONF, NOFLAGS, _POSIX2_RE_DUP_MAX, "_POSIX2_RE_DUP_MAX", SELFCONF, NOFLAGS, /* See limits.h section below for _POSIX_RE_DUP_MAX */ /* UNIX 98 */ _POSIX_AIO_LISTIO_MAX, "_POSIX_AIO_LISTIO_MAX", SELFCONF, NOFLAGS, _POSIX_AIO_MAX, "_POSIX_AIO_MAX", SELFCONF, NOFLAGS, _POSIX_DELAYTIMER_MAX, "_POSIX_DELAYTIMER_MAX", SELFCONF, NOFLAGS, _POSIX_LOGIN_NAME_MAX, "_POSIX_LOGIN_NAME_MAX", SELFCONF, NOFLAGS, _POSIX_MQ_OPEN_MAX, "_POSIX_MQ_OPEN_MAX", SELFCONF, NOFLAGS, _POSIX_MQ_PRIO_MAX, "_POSIX_MQ_PRIO_MAX", SELFCONF, NOFLAGS, _POSIX_RTSIG_MAX, "_POSIX_RTSIG_MAX", SELFCONF, NOFLAGS, _POSIX_SEM_NSEMS_MAX, "_POSIX_SEM_NSEMS_MAX", SELFCONF, NOFLAGS, _POSIX_SEM_VALUE_MAX, "_POSIX_SEM_VALUE_MAX", SELFCONF, NOFLAGS, _POSIX_SIGQUEUE_MAX, "_POSIX_SIGQUEUE_MAX", SELFCONF, NOFLAGS, _POSIX_TTY_NAME_MAX, "_POSIX_TTY_NAME_MAX", SELFCONF, NOFLAGS, /* UNIX 03 */ _POSIX_HOST_NAME_MAX, "_POSIX_HOST_NAME_MAX", SELFCONF, NOFLAGS, _POSIX_RE_DUP_MAX, "_POSIX_RE_DUP_MAX", SELFCONF, NOFLAGS, _POSIX_CLOCKRES_MIN, "_POSIX_CLOCKRES_MIN", SELFCONF, NOFLAGS, _POSIX_SYMLINK_MAX, "_POSIX_SYMLINK_MAX", SELFCONF, NOFLAGS, _POSIX_SYMLOOP_MAX, "_POSIX_SYMLOOP_MAX", SELFCONF, NOFLAGS, CHARCLASS_NAME_MAX, "_POSIX2_CHARCLASS_NAME_MAX", SELFCONF, NOFLAGS, /* POSIX.2-1992 table 2-17 */ _SC_2_VERSION, "POSIX2_VERSION", SYSCONF, NOFLAGS, _SC_2_VERSION, "_POSIX2_VERSION", SYSCONF, NOFLAGS, /* POSIX.2-1992 table 2-18 */ _SC_BC_BASE_MAX, "BC_BASE_MAX", SYSCONF, NOFLAGS, _SC_BC_DIM_MAX, "BC_DIM_MAX", SYSCONF, NOFLAGS, _SC_BC_SCALE_MAX, "BC_SCALE_MAX", SYSCONF, NOFLAGS, _SC_BC_STRING_MAX, "BC_STRING_MAX", SYSCONF, NOFLAGS, _SC_COLL_WEIGHTS_MAX, "COLL_WEIGHTS_MAX", SYSCONF, NOFLAGS, _SC_EXPR_NEST_MAX, "EXPR_NEST_MAX", SYSCONF, NOFLAGS, _SC_LINE_MAX, "LINE_MAX", SYSCONF, NOFLAGS, _SC_RE_DUP_MAX, "RE_DUP_MAX", SYSCONF, NOFLAGS, /* POSIX.2-1992 table 2-19 */ _SC_2_C_BIND, "POSIX2_C_BIND", SYSCONF, NOFLAGS, _SC_2_C_BIND, "_POSIX2_C_BIND", SYSCONF, NOFLAGS, _SC_2_C_DEV, "POSIX2_C_DEV", SYSCONF, NOFLAGS, _SC_2_C_DEV, "_POSIX2_C_DEV", SYSCONF, NOFLAGS, _SC_2_CHAR_TERM, "POSIX2_CHAR_TERM", SYSCONF, NOFLAGS, _SC_2_CHAR_TERM, "_POSIX2_CHAR_TERM", SYSCONF, NOFLAGS, _SC_2_FORT_DEV, "POSIX2_FORT_DEV", SYSCONF, NOFLAGS, _SC_2_FORT_DEV, "_POSIX2_FORT_DEV", SYSCONF, NOFLAGS, _SC_2_FORT_RUN, "POSIX2_FORT_RUN", SYSCONF, NOFLAGS, _SC_2_FORT_RUN, "_POSIX2_FORT_RUN", SYSCONF, NOFLAGS, _SC_2_LOCALEDEF, "POSIX2_LOCALEDEF", SYSCONF, NOFLAGS, _SC_2_LOCALEDEF, "_POSIX2_LOCALEDEF", SYSCONF, NOFLAGS, _SC_2_SW_DEV, "POSIX2_SW_DEV", SYSCONF, NOFLAGS, _SC_2_SW_DEV, "_POSIX2_SW_DEV", SYSCONF, NOFLAGS, _SC_2_UPE, "POSIX2_UPE", SYSCONF, NOFLAGS, _SC_2_UPE, "_POSIX2_UPE", SYSCONF, NOFLAGS, /* POSIX.1-1990 table 2-3 */ _POSIX_ARG_MAX, "_POSIX_ARG_MAX", SELFCONF, NOFLAGS, _POSIX_CHILD_MAX, "_POSIX_CHILD_MAX", SELFCONF, NOFLAGS, _POSIX_LINK_MAX, "_POSIX_LINK_MAX", SELFCONF, NOFLAGS, _POSIX_MAX_CANON, "_POSIX_MAX_CANON", SELFCONF, NOFLAGS, _POSIX_MAX_INPUT, "_POSIX_MAX_INPUT", SELFCONF, NOFLAGS, _POSIX_NAME_MAX, "_POSIX_NAME_MAX", SELFCONF, NOFLAGS, _POSIX_NGROUPS_MAX, "_POSIX_NGROUPS_MAX", SELFCONF, NOFLAGS, _POSIX_OPEN_MAX, "_POSIX_OPEN_MAX", SELFCONF, NOFLAGS, _POSIX_PATH_MAX, "_POSIX_PATH_MAX", SELFCONF, NOFLAGS, _POSIX_PIPE_BUF, "_POSIX_PIPE_BUF", SELFCONF, NOFLAGS, _POSIX_SSIZE_MAX, "_POSIX_SSIZE_MAX", SELFCONF, NOFLAGS, _POSIX_STREAM_MAX, "_POSIX_STREAM_MAX", SELFCONF, NOFLAGS, _POSIX_TIMER_MAX, "_POSIX_TIMER_MAX", SELFCONF, NOFLAGS, _POSIX_THREAD_DESTRUCTOR_ITERATIONS, "_POSIX_THREAD_DESTRUCTOR_ITERATIONS", SELFCONF, NOFLAGS, _POSIX_THREAD_KEYS_MAX, "_POSIX_THREAD_KEYS_MAX", SELFCONF, NOFLAGS, _POSIX_THREAD_THREADS_MAX, "_POSIX_THREAD_THREADS_MAX", SELFCONF, NOFLAGS, _POSIX_TZNAME_MAX, "_POSIX_TZNAME_MAX", SELFCONF, NOFLAGS, /* POSIX.1-1990 table 4-2 */ _SC_ARG_MAX, "ARG_MAX", SYSCONF, NOFLAGS, _SC_CHILD_MAX, "CHILD_MAX", SYSCONF, NOFLAGS, _SC_CLK_TCK, "CLK_TCK", SYSCONF, NOFLAGS, _SC_JOB_CONTROL, "_POSIX_JOB_CONTROL", SYSCONF, NOFLAGS, _SC_NGROUPS_MAX, "NGROUPS_MAX", SYSCONF, NOFLAGS, _SC_OPEN_MAX, "OPEN_MAX", SYSCONF, NOFLAGS, _SC_SAVED_IDS, "_POSIX_SAVED_IDS", SYSCONF, NOFLAGS, _SC_STREAM_MAX, "STREAM_MAX", SYSCONF, NOFLAGS, _SC_TZNAME_MAX, "TZNAME_MAX", SYSCONF, NOFLAGS, _SC_VERSION, "_POSIX_VERSION", SYSCONF, NOFLAGS, /* pathconf() variables */ /* POSIX.1-1990 table 5-2 */ _PC_LINK_MAX, "LINK_MAX", PATHCONF, NOFLAGS, _PC_MAX_CANON, "MAX_CANON", PATHCONF, NOFLAGS, _PC_MAX_INPUT, "MAX_INPUT", PATHCONF, NOFLAGS, _PC_NAME_MAX, "NAME_MAX", PATHCONF, NOFLAGS, _PC_PATH_MAX, "PATH_MAX", PATHCONF, NOFLAGS, _PC_PIPE_BUF, "PIPE_BUF", PATHCONF, NOFLAGS, _PC_CHOWN_RESTRICTED, "_POSIX_CHOWN_RESTRICTED", PATHCONF, NOFLAGS, _PC_NO_TRUNC, "_POSIX_NO_TRUNC", PATHCONF, NOFLAGS, _PC_VDISABLE, "_POSIX_VDISABLE", PATHCONF, NOFLAGS, /* UNIX 98 additions */ _PC_ASYNC_IO, "_POSIX_ASYNC_IO", PATHCONF, NOFLAGS, _PC_PRIO_IO, "_POSIX_PRIO_IO", PATHCONF, NOFLAGS, _PC_SYNC_IO, "_POSIX_SYNC_IO", PATHCONF, NOFLAGS, /* Large File Summit name (UNIX 98) */ _PC_FILESIZEBITS, "FILESIZEBITS", PATHCONF, NOFLAGS, _PC_XATTR_ENABLED, "XATTR_ENABLED", PATHCONF, NOFLAGS, _PC_XATTR_EXISTS, "XATTR_EXISTS", PATHCONF, NOFLAGS, /* UNIX 03 Additions */ /* Advisory Information (ADV) */ _PC_ALLOC_SIZE_MIN, "POSIX_ALLOC_SIZE_MIN", PATHCONF, NOFLAGS, _PC_REC_INCR_XFER_SIZE, "POSIX_REC_INCR_XFER_SIZE", PATHCONF, NOFLAGS, _PC_REC_MAX_XFER_SIZE, "POSIX_REC_MAX_XFER_SIZE", PATHCONF, NOFLAGS, _PC_REC_MIN_XFER_SIZE, "POSIX_REC_MIN_XFER_SIZE", PATHCONF, NOFLAGS, _PC_REC_XFER_ALIGN, "POSIX_REC_XFER_ALIGN", PATHCONF, NOFLAGS, _PC_2_SYMLINKS, "POSIX2_SYMLINKS", PATHCONF, NOFLAGS, _PC_SYMLINK_MAX, "SYMLINK_MAX", PATHCONF, NOFLAGS, _PC_ACL_ENABLED, "ACL_ENABLED", PATHCONF, NOFLAGS, _PC_MIN_HOLE_SIZE, "MIN_HOLE_SIZE", PATHCONF, NOFLAGS, _PC_SATTR_ENABLED, "SATTR_ENABLED", PATHCONF, NOFLAGS, _PC_SATTR_EXISTS, "SATTR_EXISTS", PATHCONF, NOFLAGS, /* UNIX 08 additions */ _PC_TIMESTAMP_RESOLUTION, "_POSIX_TIMESTAMP_RESOLUTION", PATHCONF, NOFLAGS, /* confstr() variables */ /* POSIX.2-1992 description of getconf utility */ _CS_PATH, "PATH", CONFSTR, NOFLAGS, /* POSIX.2-1992 table B-18 */ _CS_PATH, "CS_PATH", CONFSTR, NOFLAGS, _CS_PATH, "_CS_PATH", CONFSTR, NOFLAGS, /* command names for large file configuration information */ /* large file compilation environment configuration */ _CS_LFS_CFLAGS, "LFS_CFLAGS", CONFSTR, NOFLAGS, _CS_LFS_LDFLAGS, "LFS_LDFLAGS", CONFSTR, NOFLAGS, _CS_LFS_LIBS, "LFS_LIBS", CONFSTR, NOFLAGS, _CS_LFS_LINTFLAGS, "LFS_LINTFLAGS", CONFSTR, NOFLAGS, /* transitional large file interface configuration */ _CS_LFS64_CFLAGS, "LFS64_CFLAGS", CONFSTR, NOFLAGS, _CS_LFS64_LDFLAGS, "LFS64_LDFLAGS", CONFSTR, NOFLAGS, _CS_LFS64_LIBS, "LFS64_LIBS", CONFSTR, NOFLAGS, _CS_LFS64_LINTFLAGS, "LFS64_LINTFLAGS", CONFSTR, NOFLAGS, /* * UNIX 98: * confstr additions, these support * programming specifications/environments. * * Unfortunately there is some uncertainty with * the standard at this point about the constant * name, thus we need to recognize BOTH with and * without the initial underscore. */ _CS_XBS5_ILP32_OFF32_CFLAGS, "XBS5_ILP32_OFF32_CFLAGS", CONFSTR, NOFLAGS, _CS_XBS5_ILP32_OFF32_CFLAGS, "_XBS5_ILP32_OFF32_CFLAGS", CONFSTR, NOFLAGS, _CS_XBS5_ILP32_OFF32_LDFLAGS, "XBS5_ILP32_OFF32_LDFLAGS", CONFSTR, NOFLAGS, _CS_XBS5_ILP32_OFF32_LDFLAGS, "_XBS5_ILP32_OFF32_LDFLAGS", CONFSTR, NOFLAGS, _CS_XBS5_ILP32_OFF32_LIBS, "XBS5_ILP32_OFF32_LIBS", CONFSTR, NOFLAGS, _CS_XBS5_ILP32_OFF32_LIBS, "_XBS5_ILP32_OFF32_LIBS", CONFSTR, NOFLAGS, _CS_XBS5_ILP32_OFF32_LINTFLAGS, "XBS5_ILP32_OFF32_LINTFLAGS", CONFSTR, NOFLAGS, _CS_XBS5_ILP32_OFF32_LINTFLAGS, "_XBS5_ILP32_OFF32_LINTFLAGS", CONFSTR, NOFLAGS, _CS_XBS5_ILP32_OFFBIG_CFLAGS, "XBS5_ILP32_OFFBIG_CFLAGS", CONFSTR, NOFLAGS, _CS_XBS5_ILP32_OFFBIG_CFLAGS, "_XBS5_ILP32_OFFBIG_CFLAGS", CONFSTR, NOFLAGS, _CS_XBS5_ILP32_OFFBIG_LDFLAGS, "XBS5_ILP32_OFFBIG_LDFLAGS", CONFSTR, NOFLAGS, _CS_XBS5_ILP32_OFFBIG_LDFLAGS, "_XBS5_ILP32_OFFBIG_LDFLAGS", CONFSTR, NOFLAGS, _CS_XBS5_ILP32_OFFBIG_LIBS, "XBS5_ILP32_OFFBIG_LIBS", CONFSTR, NOFLAGS, _CS_XBS5_ILP32_OFFBIG_LIBS, "_XBS5_ILP32_OFFBIG_LIBS", CONFSTR, NOFLAGS, _CS_XBS5_ILP32_OFFBIG_LINTFLAGS, "XBS5_ILP32_OFFBIG_LINTFLAGS", CONFSTR, NOFLAGS, _CS_XBS5_ILP32_OFFBIG_LINTFLAGS, "_XBS5_ILP32_OFFBIG_LINTFLAGS", CONFSTR, NOFLAGS, _CS_XBS5_LP64_OFF64_CFLAGS, "XBS5_LP64_OFF64_CFLAGS", CONFSTR, NOFLAGS, _CS_XBS5_LP64_OFF64_CFLAGS, "_XBS5_LP64_OFF64_CFLAGS", CONFSTR, NOFLAGS, _CS_XBS5_LP64_OFF64_LDFLAGS, "XBS5_LP64_OFF64_LDFLAGS", CONFSTR, NOFLAGS, _CS_XBS5_LP64_OFF64_LDFLAGS, "_XBS5_LP64_OFF64_LDFLAGS", CONFSTR, NOFLAGS, _CS_XBS5_LP64_OFF64_LIBS, "XBS5_LP64_OFF64_LIBS", CONFSTR, NOFLAGS, _CS_XBS5_LP64_OFF64_LIBS, "_XBS5_LP64_OFF64_LIBS", CONFSTR, NOFLAGS, _CS_XBS5_LP64_OFF64_LINTFLAGS, "XBS5_LP64_OFF64_LINTFLAGS", CONFSTR, NOFLAGS, _CS_XBS5_LP64_OFF64_LINTFLAGS, "_XBS5_LP64_OFF64_LINTFLAGS", CONFSTR, NOFLAGS, _CS_XBS5_LPBIG_OFFBIG_CFLAGS, "XBS5_LPBIG_OFFBIG_CFLAGS", CONFSTR, NOFLAGS, _CS_XBS5_LPBIG_OFFBIG_CFLAGS, "_XBS5_LPBIG_OFFBIG_CFLAGS", CONFSTR, NOFLAGS, _CS_XBS5_LPBIG_OFFBIG_LDFLAGS, "XBS5_LPBIG_OFFBIG_LDFLAGS", CONFSTR, NOFLAGS, _CS_XBS5_LPBIG_OFFBIG_LDFLAGS, "_XBS5_LPBIG_OFFBIG_LDFLAGS", CONFSTR, NOFLAGS, _CS_XBS5_LPBIG_OFFBIG_LIBS, "XBS5_LPBIG_OFFBIG_LIBS", CONFSTR, NOFLAGS, _CS_XBS5_LPBIG_OFFBIG_LIBS, "_XBS5_LPBIG_OFFBIG_LIBS", CONFSTR, NOFLAGS, _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS, "XBS5_LPBIG_OFFBIG_LINTFLAGS", CONFSTR, NOFLAGS, _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS, "_XBS5_LPBIG_OFFBIG_LINTFLAGS", CONFSTR, NOFLAGS, /* * UNIX 03 confstr() additions for compilation environments */ _CS_POSIX_V6_ILP32_OFF32_CFLAGS, "POSIX_V6_ILP32_OFF32_CFLAGS", CONFSTR, NOFLAGS, _CS_POSIX_V6_ILP32_OFF32_LDFLAGS, "POSIX_V6_ILP32_OFF32_LDFLAGS", CONFSTR, NOFLAGS, _CS_POSIX_V6_ILP32_OFF32_LIBS, "POSIX_V6_ILP32_OFF32_LIBS", CONFSTR, NOFLAGS, _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS, "POSIX_V6_ILP32_OFFBIG_CFLAGS", CONFSTR, NOFLAGS, _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS, "POSIX_V6_ILP32_OFFBIG_LDFLAGS", CONFSTR, NOFLAGS, _CS_POSIX_V6_ILP32_OFFBIG_LIBS, "POSIX_V6_ILP32_OFFBIG_LIBS", CONFSTR, NOFLAGS, _CS_POSIX_V6_LP64_OFF64_CFLAGS, "POSIX_V6_LP64_OFF64_CFLAGS", CONFSTR, NOFLAGS, _CS_POSIX_V6_LP64_OFF64_LDFLAGS, "POSIX_V6_LP64_OFF64_LDFLAGS", CONFSTR, NOFLAGS, _CS_POSIX_V6_LP64_OFF64_LIBS, "POSIX_V6_LP64_OFF64_LIBS", CONFSTR, NOFLAGS, _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS, "POSIX_V6_LPBIG_OFFBIG_CFLAGS", CONFSTR, NOFLAGS, _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS, "POSIX_V6_LPBIG_OFFBIG_LDFLAGS", CONFSTR, NOFLAGS, _CS_POSIX_V6_LPBIG_OFFBIG_LIBS, "POSIX_V6_LPBIG_OFFBIG_LIBS", CONFSTR, NOFLAGS, _CS_POSIX_V6_WIDTH_RESTRICTED_ENVS, "POSIX_V6_WIDTH_RESTRICTED_ENVS", CONFSTR, NOFLAGS, /* End of UNIX 03 compilation environments */ #ifdef _SC_2_C_VERSION /* POSIX.2 table B-4 */ _SC_2_C_VERSION, "_POSIX2_C_VERSION", SYSCONF, NOFLAGS, #else _POSIX2_C_VERSION, "_POSIX2_C_VERSION", SELFCONF, NOFLAGS, #endif /* * XPG4 support BEGINS */ #ifndef CHARCLASS_NAME_MAX #define CHARCLASS_NAME_MAX -1 #endif #ifndef CHAR_BIT #define CHAR_BIT -1 #endif #ifndef CHAR_MAX #define CHAR_MAX -1 #endif #ifndef CHAR_MIN #define CHAR_MIN -1 #endif #ifndef INT_MAX #define INT_MAX -1 #endif #ifndef INT_MIN #define INT_MIN -1 #endif #ifndef LONG_BIT #define LONG_BIT -1 #endif #ifndef LONG_MAX #define LONG_MAX -1 #endif #ifndef LONG_MIN #define LONG_MIN -1 #endif #ifndef MB_LEN_MAX #define MB_LEN_MAX -1 #endif #ifndef NL_NMAX #define NL_NMAX -1 #endif #ifndef NL_ARGMAX #define NL_ARGMAX -1 #endif #ifndef NL_LANGMAX #define NL_LANGMAX -1 #endif #ifndef NL_MSGMAX #define NL_MSGMAX -1 #endif #ifndef NL_SETMAX #define NL_SETMAX -1 #endif #ifndef NL_TEXTMAX #define NL_TEXTMAX -1 #endif #ifndef NZERO #define NZERO -1 #endif #ifndef SCHAR_MAX #define SCHAR_MAX -1 #endif #ifndef SCHAR_MIN #define SCHAR_MIN -1 #endif #ifndef SHRT_MAX #define SHRT_MAX -1 #endif #ifndef SHRT_MIN #define SHRT_MIN -1 #endif #ifndef TMP_MAX #define TMP_MAX -1 #endif #ifndef WORD_BIT #define WORD_BIT -1 #endif #ifndef _XOPEN_XPG2 #define _XOPEN_XPG2 -1 #endif #ifndef _XOPEN_XPG3 #define _XOPEN_XPG3 -1 #endif #ifndef _XOPEN_XPG4 #define _XOPEN_XPG4 -1 #endif /* * the following are values that we should find in * so we use SELFCONF here. * */ /* POSIX.1-1990 */ CHARCLASS_NAME_MAX, "CHARCLASS_NAME_MAX", SELFCONF, NOFLAGS, SSIZE_MAX, "SSIZE_MAX", SELFCONF, NOFLAGS, /* POSIX.1-1988 */ CHAR_BIT, "CHAR_BIT", SELFCONF, NOFLAGS, CHAR_MAX, "CHAR_MAX", SELFCONF, NOFLAGS, CHAR_MIN, "CHAR_MIN", SELFCONF, NOFLAGS, INT_MAX, "INT_MAX", SELFCONF, NOFLAGS, INT_MIN, "INT_MIN", SELFCONF, NOFLAGS, LONG_BIT, "LONG_BIT", SELFCONF, NOFLAGS, LONG_MAX, "LONG_MAX", SELFCONF, NOFLAGS, LONG_MIN, "LONG_MIN", SELFCONF, NOFLAGS, MB_LEN_MAX, "MB_LEN_MAX", SELFCONF, NOFLAGS, NL_NMAX, "NL_NMAX", SELFCONF, NOFLAGS, NL_ARGMAX, "NL_ARGMAX", SELFCONF, NOFLAGS, NL_LANGMAX, "NL_LANGMAX", SELFCONF, NOFLAGS, NL_MSGMAX, "NL_MSGMAX", SELFCONF, NOFLAGS, NL_SETMAX, "NL_SETMAX", SELFCONF, NOFLAGS, NL_TEXTMAX, "NL_TEXTMAX", SELFCONF, NOFLAGS, NZERO, "NZERO", SELFCONF, NOFLAGS, SCHAR_MAX, "SCHAR_MAX", SELFCONF, NOFLAGS, SCHAR_MIN, "SCHAR_MIN", SELFCONF, NOFLAGS, SHRT_MAX, "SHRT_MAX", SELFCONF, NOFLAGS, SHRT_MIN, "SHRT_MIN", SELFCONF, NOFLAGS, TMP_MAX, "TMP_MAX", SELFCONF, NOFLAGS, /* * for the unsigned maximums, we cannot rely on the value -1 * to indicate "undefined". */ #ifndef UCHAR_MAX 0, "UCHAR_MAX", SELFCONF, UNDEFINED, #else (long)UCHAR_MAX, "UCHAR_MAX", SELFCONF, UNSIGNED_VALUE, #endif /* UCHAR_MAX */ #ifndef UINT_MAX 0, "UINT_MAX", SELFCONF, UNDEFINED, #else (long)UINT_MAX, "UINT_MAX", SELFCONF, UNSIGNED_VALUE, #endif /* UINT_MAX */ #ifndef ULONG_MAX 0, "ULONG_MAX", SELFCONF, UNDEFINED, #else (long)ULONG_MAX, "ULONG_MAX", SELFCONF, UNSIGNED_VALUE, #endif /* ULONG_MAX */ #ifndef USHRT_MAX 0, "USHRT_MAX", SELFCONF, UNDEFINED, #else (long)USHRT_MAX, "USHRT_MAX", SELFCONF, UNSIGNED_VALUE, #endif /* USHRT_MAX */ #ifndef SIZE_MAX 0, "SIZE_MAX", SELFCONF, UNDEFINED, #else (long)SIZE_MAX, "SIZE_MAX", SELFCONF, UNSIGNED_VALUE, #endif /* SIZE_MAX */ WORD_BIT, "WORD_BIT", SELFCONF, NOFLAGS, /* XPG4 Version 2 */ _XOPEN_IOV_MAX, "_XOPEN_IOV_MAX", SELFCONF, NOFLAGS, /* UNIX 03 */ _XOPEN_NAME_MAX, "_XOPEN_NAME_MAX", SELFCONF, NOFLAGS, _XOPEN_PATH_MAX, "_XOPEN_PATH_MAX", SELFCONF, NOFLAGS, /* * The following are defined via sysconf(). These are considered * an extension to sysconf(). * The -0 is needed if _XOPEN_XPG? is defined to be an empty string. */ _XOPEN_XPG2-0, "_XOPEN_XPG2", SELFCONF, NOFLAGS, _XOPEN_XPG3-0, "_XOPEN_XPG3", SELFCONF, NOFLAGS, _XOPEN_XPG4-0, "_XOPEN_XPG4", SELFCONF, NOFLAGS, /* * The following should be provided by sysconf() (e.g use SYSCONF), * so we look for the appropriate _SC_* symbol in . * If it is not defined, then we use SELFCONF with the value of -1. */ _SC_XOPEN_VERSION, "_XOPEN_VERSION", SYSCONF, NOFLAGS, _SC_XOPEN_XCU_VERSION, "_XOPEN_XCU_VERSION", SYSCONF, NOFLAGS, _SC_XOPEN_CRYPT, "_XOPEN_CRYPT", SYSCONF, NOFLAGS, _SC_XOPEN_ENH_I18N, "_XOPEN_ENH_I18N", SYSCONF, NOFLAGS, _SC_XOPEN_SHM, "_XOPEN_SHM", SYSCONF, NOFLAGS, /* * XPG4 support ends */ /* XPG4, Version 2 support */ _SC_ATEXIT_MAX, "ATEXIT_MAX", SYSCONF, NOFLAGS, _SC_PAGESIZE, "PAGESIZE", SYSCONF, NOFLAGS, _SC_PAGE_SIZE, "PAGE_SIZE", SYSCONF, NOFLAGS, _SC_XOPEN_UNIX, "_XOPEN_UNIX", SYSCONF, NOFLAGS, _SC_IOV_MAX, "IOV_MAX", SYSCONF, NOFLAGS, /* * UNIX 98 - XPG5 additions */ _SC_XOPEN_LEGACY, "_XOPEN_LEGACY", SYSCONF, NOFLAGS, _SC_PASS_MAX, "PASS_MAX", SYSCONF, NOFLAGS, _SC_AIO_LISTIO_MAX, "AIO_LISTIO_MAX", SYSCONF, NOFLAGS, _SC_AIO_MAX, "AIO_MAX", SYSCONF, NOFLAGS, _SC_AIO_PRIO_DELTA_MAX, "AIO_PRIO_DELTA_MAX", SYSCONF, NOFLAGS, _SC_DELAYTIMER_MAX, "DELAYTIMER_MAX", SYSCONF, NOFLAGS, _SC_MQ_OPEN_MAX, "MQ_OPEN_MAX", SYSCONF, NOFLAGS, _SC_MQ_PRIO_MAX, "MQ_PRIO_MAX", SYSCONF, NOFLAGS, _SC_RTSIG_MAX, "RTSIG_MAX", SYSCONF, NOFLAGS, _SC_SEM_NSEMS_MAX, "SEM_NSEMS_MAX", SYSCONF, NOFLAGS, _SC_SEM_VALUE_MAX, "SEM_VALUE_MAX", SYSCONF, NOFLAGS, _SC_SIGQUEUE_MAX, "SIGQUEUE_MAX", SYSCONF, NOFLAGS, _SC_TIMER_MAX, "TIMER_MAX", SYSCONF, NOFLAGS, _SC_ASYNCHRONOUS_IO, "_POSIX_ASYNCHRONOUS_IO", SYSCONF, NOFLAGS, _SC_FSYNC, "_POSIX_FSYNC", SYSCONF, NOFLAGS, _SC_MAPPED_FILES, "_POSIX_MAPPED_FILES", SYSCONF, NOFLAGS, _SC_MEMLOCK, "_POSIX_MEMLOCK", SYSCONF, NOFLAGS, _SC_MEMLOCK_RANGE, "_POSIX_MEMLOCK_RANGE", SYSCONF, NOFLAGS, _SC_MEMORY_PROTECTION, "_POSIX_MEMORY_PROTECTION", SYSCONF, NOFLAGS, _SC_MESSAGE_PASSING, "_POSIX_MESSAGE_PASSING", SYSCONF, NOFLAGS, _SC_PRIORITIZED_IO, "_POSIX_PRIORITIZED_IO", SYSCONF, NOFLAGS, _SC_PRIORITY_SCHEDULING, "_POSIX_PRIORITY_SCHEDULING", SYSCONF, NOFLAGS, _SC_REALTIME_SIGNALS, "_POSIX_REALTIME_SIGNALS", SYSCONF, NOFLAGS, _SC_SEMAPHORES, "_POSIX_SEMAPHORES", SYSCONF, NOFLAGS, _SC_SHARED_MEMORY_OBJECTS, "_POSIX_SHARED_MEMORY_OBJECTS", SYSCONF, NOFLAGS, _SC_SYNCHRONIZED_IO, "_POSIX_SYNCHRONIZED_IO", SYSCONF, NOFLAGS, _SC_TIMERS, "_POSIX_TIMERS", SYSCONF, NOFLAGS, _SC_LOGIN_NAME_MAX, "LOGIN_NAME_MAX", SYSCONF, NOFLAGS, _SC_THREAD_DESTRUCTOR_ITERATIONS, "PTHREAD_DESTRUCTOR_ITERATIONS", SYSCONF, NOFLAGS, _SC_THREAD_KEYS_MAX, "PTHREAD_KEYS_MAX", SYSCONF, NOFLAGS, _SC_THREAD_STACK_MIN, "PTHREAD_STACK_MIN", SYSCONF, NOFLAGS, _SC_THREAD_THREADS_MAX, "PTHREAD_THREADS_MAX", SYSCONF, NOFLAGS, _SC_THREADS, "_POSIX_THREADS", SYSCONF, NOFLAGS, _SC_THREAD_ATTR_STACKADDR, "POSIX_THREAD_ATTR_STACKADDR", SYSCONF, NOFLAGS, _SC_THREAD_ATTR_STACKADDR, "_POSIX_THREAD_ATTR_STACKADDR", SYSCONF, NOFLAGS, _SC_THREAD_ATTR_STACKSIZE, "POSIX_THREAD_ATTR_STACKSIZE", SYSCONF, NOFLAGS, _SC_THREAD_ATTR_STACKSIZE, "_POSIX_THREAD_ATTR_STACKSIZE", SYSCONF, NOFLAGS, _SC_THREAD_PRIORITY_SCHEDULING, "POSIX_THREAD_PRIORITY_SCHEDULING", SYSCONF, NOFLAGS, _SC_THREAD_PRIORITY_SCHEDULING, "_POSIX_THREAD_PRIORITY_SCHEDULING", SYSCONF, NOFLAGS, _SC_THREAD_PRIO_INHERIT, "POSIX_THREAD_PRIO_INHERIT", SYSCONF, NOFLAGS, _SC_THREAD_PRIO_INHERIT, "_POSIX_THREAD_PRIO_INHERIT", SYSCONF, NOFLAGS, _SC_THREAD_PRIO_PROTECT, "POSIX_THREAD_PRIO_PROTECT", SYSCONF, NOFLAGS, _SC_THREAD_PRIO_PROTECT, "_POSIX_THREAD_PRIO_PROTECT", SYSCONF, NOFLAGS, _SC_THREAD_PROCESS_SHARED, "POSIX_THREAD_PROCESS_SHARED", SYSCONF, NOFLAGS, _SC_THREAD_PROCESS_SHARED, "_POSIX_THREAD_PROCESS_SHARED", SYSCONF, NOFLAGS, _SC_THREAD_SAFE_FUNCTIONS, "POSIX_THREAD_SAFE_FUNCTIONS", SYSCONF, NOFLAGS, _SC_THREAD_SAFE_FUNCTIONS, "_POSIX_THREAD_SAFE_FUNCTIONS", SYSCONF, NOFLAGS, _SC_TTY_NAME_MAX, "TTY_NAME_MAX", SYSCONF, NOFLAGS, _SC_XOPEN_REALTIME, "_XOPEN_REALTIME", SYSCONF, NOFLAGS, _SC_XOPEN_REALTIME_THREADS, "_XOPEN_REALTIME_THREADS", SYSCONF, NOFLAGS, /* * Due to ambiguity in the standard we need * to recognize both the underscored name * and the non-underscored version in the * following variables. */ _SC_XBS5_ILP32_OFF32, "XBS5_ILP32_OFF32", SYSCONF, NOFLAGS, _SC_XBS5_ILP32_OFF32, "_XBS5_ILP32_OFF32", SYSCONF, NOFLAGS, _SC_XBS5_ILP32_OFFBIG, "XBS5_ILP32_OFFBIG", SYSCONF, NOFLAGS, _SC_XBS5_ILP32_OFFBIG, "_XBS5_ILP32_OFFBIG", SYSCONF, NOFLAGS, _SC_XBS5_LP64_OFF64, "XBS5_LP64_OFF64", SYSCONF, NOFLAGS, _SC_XBS5_LP64_OFF64, "_XBS5_LP64_OFF64", SYSCONF, NOFLAGS, _SC_XBS5_LPBIG_OFFBIG, "XBS5_LPBIG_OFFBIG", SYSCONF, NOFLAGS, _SC_XBS5_LPBIG_OFFBIG, "_XBS5_LPBIG_OFFBIG", SYSCONF, NOFLAGS, /* * UNIX 03 additions for sysconf() names, and names that are not in interfaces */ _SC_REGEXP, "_POSIX_REGEXP", SYSCONF, NOFLAGS, _SC_SHELL, "_POSIX_SHELL", SYSCONF, NOFLAGS, _SC_HOST_NAME_MAX, "HOST_NAME_MAX", SYSCONF, NOFLAGS, _SC_READER_WRITER_LOCKS, "_POSIX_READER_WRITER_LOCKS", SYSCONF, NOFLAGS, _SC_IPV6, "_POSIX_IPV6", SYSCONF, NOFLAGS, _SC_RAW_SOCKETS, "_POSIX_RAW_SOCKETS", SYSCONF, NOFLAGS, _SC_XOPEN_STREAMS, "_XOPEN_STREAMS", SYSCONF, NOFLAGS, _SC_SYMLOOP_MAX, "SYMLOOP_MAX", SYSCONF, NOFLAGS, _SC_2_PBS, "_POSIX2_PBS", SYSCONF, NOFLAGS, _SC_2_PBS_ACCOUNTING, "_POSIX2_PBS_ACCOUNTING", SYSCONF, NOFLAGS, _SC_2_PBS_CHECKPOINT, "_POSIX2_PBS_CHECKPOINT", SYSCONF, NOFLAGS, _SC_2_PBS_LOCATE, "_POSIX2_PBS_LOCATE", SYSCONF, NOFLAGS, _SC_2_PBS_MESSAGE, "_POSIX2_PBS_MESSAGE", SYSCONF, NOFLAGS, _SC_2_PBS_TRACK, "_POSIX2_PBS_TRACK", SYSCONF, NOFLAGS, _SC_ADVISORY_INFO, "_POSIX_ADVISORY_INFO", SYSCONF, NOFLAGS, _SC_BARRIERS, "_POSIX_BARRIERS", SYSCONF, NOFLAGS, _SC_CLOCK_SELECTION, "_POSIX_CLOCK_SELECTION", SYSCONF, NOFLAGS, _SC_CPUTIME, "_POSIX_CPUTIME", SYSCONF, NOFLAGS, _SC_MONOTONIC_CLOCK, "_POSIX_MONOTONIC_CLOCK", SYSCONF, NOFLAGS, _SC_SPAWN, "_POSIX_SPAWN", SYSCONF, NOFLAGS, _SC_SPIN_LOCKS, "_POSIX_SPIN_LOCKS", SYSCONF, NOFLAGS, _SC_SPORADIC_SERVER, "_POSIX_SPORADIC_SERVER", SYSCONF, NOFLAGS, _SC_SS_REPL_MAX, "_POSIX_SS_REPL_MAX", SYSCONF, NOFLAGS, _SC_THREAD_CPUTIME, "_POSIX_THREAD_CPUTIME", SYSCONF, NOFLAGS, _SC_THREAD_SPORADIC_SERVER, "_POSIX_THREAD_SPORADIC_SERVER", SYSCONF, NOFLAGS, _SC_TIMEOUTS, "_POSIX_TIMEOUTS", SYSCONF, NOFLAGS, _SC_TRACE, "_POSIX_TRACE", SYSCONF, NOFLAGS, _SC_TRACE_EVENT_FILTER, "_POSIX_TRACE_EVENT_FILTER", SYSCONF, NOFLAGS, _SC_TRACE_EVENT_NAME_MAX, "_POSIX_TRACE_EVENT_NAME_MAX", SYSCONF, NOFLAGS, _SC_TRACE_INHERIT, "_POSIX_TRACE_INHERIT", SYSCONF, NOFLAGS, _SC_TRACE_LOG, "_POSIX_TRACE_LOG", SYSCONF, NOFLAGS, _SC_TRACE_NAME_MAX, "_POSIX_TRACE_NAME_MAX", SYSCONF, NOFLAGS, _SC_TRACE_SYS_MAX, "_POSIX_TRACE_SYS_MAX", SYSCONF, NOFLAGS, _SC_TRACE_USER_EVENT_MAX, "_POSIX_TRACE_USER_EVENT_MAX", SYSCONF, NOFLAGS, _SC_TYPED_MEMORY_OBJECTS, "_POSIX_TYPED_MEMORY_OBJECTS", SYSCONF, NOFLAGS, /* * Due to an ambiguity in the specification, we need to recognize both * the underscored POSIX name and the non-underscored name. In addition, * we need to permit the use of the _V6_* environment names specified * in unistd.h. */ _SC_V6_ILP32_OFF32, "_V6_ILP32_OFF32", SYSCONF, NOFLAGS, _SC_V6_ILP32_OFF32, "_POSIX_V6_ILP32_OFF32", SYSCONF, NOFLAGS, _SC_V6_ILP32_OFF32, "POSIX_V6_ILP32_OFF32", SYSCONF, NOFLAGS, _SC_V6_ILP32_OFFBIG, "_V6_ILP32_OFFBIG", SYSCONF, NOFLAGS, _SC_V6_ILP32_OFFBIG, "_POSIX_V6_ILP32_OFFBIG", SYSCONF, NOFLAGS, _SC_V6_ILP32_OFFBIG, "POSIX_V6_ILP32_OFFBIG", SYSCONF, NOFLAGS, _SC_V6_LP64_OFF64, "_V6_LP64_OFF64", SYSCONF, NOFLAGS, _SC_V6_LP64_OFF64, "_POSIX_V6_LP64_OFF64", SYSCONF, NOFLAGS, _SC_V6_LP64_OFF64, "POSIX_V6_LP64_OFF64", SYSCONF, NOFLAGS, _SC_V6_LPBIG_OFFBIG, "_V6_LPBIG_OFFBIG", SYSCONF, NOFLAGS, _SC_V6_LPBIG_OFFBIG, "_POSIX_V6_LPBIG_OFFBIG", SYSCONF, NOFLAGS, _SC_V6_LPBIG_OFFBIG, "POSIX_V6_LPBIG_OFFBIG", SYSCONF, NOFLAGS, /* * System V Interface Definition */ _SC_NPROCESSORS_CONF, "NPROCESSORS_CONF", SYSCONF, NOFLAGS, _SC_NPROCESSORS_MAX, "NPROCESSORS_MAX", SYSCONF, NOFLAGS, _SC_NPROCESSORS_ONLN, "NPROCESSORS_ONLN", SYSCONF, NOFLAGS, 0, NULL, 0, 0 /* end of table */ }; /* * Print usage message. */ static int usage() { (void) fputs(gettext( "usage:\tgetconf [-v specification] system_var\n" "\tgetconf [-v specification] path_var pathname\n" "\tgetconf -a\n"), stderr); return (2); } static int namecmp(const void *a, const void *b) { return (strcoll(((const struct sctab *)a)->name, ((const struct sctab *)b)->name)); } static int getconf(struct sctab *scp, int argc, char *name, char *file) { register size_t len; register char *buffer; long value; switch (scp->type) { case SELFCONF: if (argc > 2) return (usage()); if (scp->flag & UNDEFINED || (!(scp->flag&UNSIGNED_VALUE) && scp->value == -1)) { /* DO NOT TRANSLATE */ (void) printf("undefined\n"); } else if (scp->flag & UNSIGNED_VALUE) (void) printf("%lu\n", scp->value); else (void) printf("%ld\n", scp->value); break; case SYSCONF: if (argc > 2) return (usage()); errno = 0; if (scp->flag & UNDEFINED || (value = sysconf((int)scp->value)) == -1) { if (errno == EINVAL) { (void) fprintf(stderr, gettext(INVAL_ARG), name); return (1); } else { /* DO NOT TRANSLATE */ (void) printf("undefined\n"); return (0); } } else (void) printf("%ld\n", value); break; case CONFSTR: if (argc > 2) return (usage()); errno = 0; len = confstr((int)scp->value, NULL, (size_t)0); if (len == 0) { if (errno == EINVAL) { (void) fprintf(stderr, gettext(INVAL_ARG), name); return (1); } else { /* DO NOT TRANSLATE */ (void) printf("undefined\n"); return (0); } } /* * allocate space to store result of constr() into */ if ((buffer = malloc(len)) == NULL) { (void) fprintf(stderr, gettext("insufficient memory available")); return (1); } assert(confstr((int)scp->value, buffer, len) != 0); (void) printf("%s\n", buffer); free(buffer); break; case PATHCONF: if (argc != 3) return (usage()); errno = 0; if ((value = pathconf(file, (int)scp->value)) == -1) { if (errno == EINVAL || errno == 0) { /* Does not support the association */ /* DO NOT TRANSLATE */ (void) printf("undefined\n"); return (0); } else { /* Probably problems with the pathname itself */ if (aflag) { (void) printf("%s\n", file); } else { (void) printf("%s", file); } return (1); } } (void) printf("%ld\n", value); break; } return (0); } int main(int argc, char **argv) { register struct sctab *scp; int c; int exstat = 0; (void) setlocale(LC_ALL, ""); #if !defined(TEXT_DOMAIN) /* Should be defined by cc -D */ #define TEXT_DOMAIN "SYS_TEST" #endif (void) textdomain(TEXT_DOMAIN); while ((c = getopt(argc, argv, "av:")) != -1) switch (c) { case 'a': aflag = 1; break; case 'v': /* * Unix98 adds the -v option to allow * programming 'specifications' to be * indicated, for present purposes * the specification isn't really * doing anything of value, so for * the moment getopt just processes the * option value and argv[1] is adjusted. * * At some later date we might want to * do specification processing at this * point. */ break; case '?': return (usage()); } argc -= optind-1; argv += optind-1; if ((aflag && argc >= 2) || (!aflag && argc < 2)) return (usage()); if (aflag) { #define TabStop 8 #define RightColumn 32 #define DefPathName "." /* * sort the table by the "name" field * so we print it in sorted order */ qsort(&sctab[0], (sizeof (sctab) / sizeof (struct sctab)) - 1, sizeof (struct sctab), namecmp); /* * print all the known symbols and their values */ for (scp = &sctab[0]; scp->name != NULL; ++scp) { int stat; /* * create 2 columns: * variable name in the left column, * value in the right column. * The right column starts at a tab stop. */ (void) printf("%s:\t", scp->name); c = strlen(scp->name) + 1; c = (c+TabStop) / TabStop, c *= TabStop; for (; c < RightColumn; c += TabStop) (void) putchar('\t'); /* * for pathconf() related variables that require * a pathname, use "." */ stat = getconf(scp, scp->type == PATHCONF ? 3 : 2, scp->name, DefPathName); exstat |= stat; /* * if stat != 0, then an error message was already * printed in getconf(), * so don't need to print one here */ } } else { /* * find the name of the specified variable (argv[1]) * and print its value. */ for (scp = &sctab[0]; scp->name != NULL; ++scp) if (strcmp(argv[1], scp->name) == 0) { exstat = getconf(scp, argc, argv[1], argv[2]); break; } /* * if at last entry in table, then the user specified * variable is invalid */ if (scp->name == NULL) { errno = EINVAL; (void) fprintf(stderr, gettext(INVAL_ARG), argv[1]); return (1); } } return (exstat); }