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