diff options
Diffstat (limited to 'system/musl/getconf.c')
| -rw-r--r-- | system/musl/getconf.c | 338 |
1 files changed, 0 insertions, 338 deletions
diff --git a/system/musl/getconf.c b/system/musl/getconf.c deleted file mode 100644 index c4235242b..000000000 --- a/system/musl/getconf.c +++ /dev/null @@ -1,338 +0,0 @@ -/*- - * Copyright (c) 1996, 1998 The NetBSD Foundation, Inc. - * All rights reserved. - * - * This code is derived from software contributed to The NetBSD Foundation - * by J.T. Conklin. - * - * Mostly rewritten to be used in Alpine Linux (with musl c-library) - * by Timo Teräs. - * - * 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. - * - * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS - * ``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 FOUNDATION OR CONTRIBUTORS - * 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. - */ - -#include <err.h> -#include <errno.h> -#include <values.h> -#include <limits.h> -#include <locale.h> -#include <stdio.h> -#include <stdlib.h> -#include <unistd.h> -#include <string.h> - -struct conf_variable { - const char *name; - enum { SYSCONF, CONFSTR, PATHCONF, CONSTANT, UCONSTANT, NUM_TYPES } type; - long value; -}; - -static const struct conf_variable conf_table[] = { -{ "PATH", CONFSTR, _CS_PATH }, - -/* 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 }, -{ "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 }, -{ "POSIX2_VERSION", CONSTANT, _POSIX2_VERSION }, - -/* POSIX.1 Minimum Values */ -{ "_POSIX_AIO_LISTIO_MAX", CONSTANT, _POSIX_AIO_LISTIO_MAX }, -{ "_POSIX_AIO_MAX", CONSTANT, _POSIX_AIO_MAX }, -{ "_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_MQ_OPEN_MAX", CONSTANT, _POSIX_MQ_OPEN_MAX }, -{ "_POSIX_MQ_PRIO_MAX", CONSTANT, _POSIX_MQ_PRIO_MAX }, -{ "_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_PATH_MAX }, -{ "_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 }, - -/* 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 }, - -/* Optional Facility Configuration Values */ -{ "_POSIX2_C_BIND", SYSCONF, _SC_2_C_BIND }, -{ "POSIX2_C_DEV", SYSCONF, _SC_2_C_DEV }, -{ "POSIX2_CHAR_TERM", SYSCONF, _SC_2_CHAR_TERM }, -{ "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 }, -{ "POSIX2_UPE", SYSCONF, _SC_2_UPE }, - -/* POSIX.1 Configurable System Variables */ -{ "AIO_LISTIO_MAX", SYSCONF, _SC_AIO_LISTIO_MAX }, -{ "AIO_MAX", SYSCONF, _SC_AIO_MAX }, -{ "ARG_MAX", SYSCONF, _SC_ARG_MAX }, -{ "CHILD_MAX", SYSCONF, _SC_CHILD_MAX }, -{ "CLK_TCK", SYSCONF, _SC_CLK_TCK }, -{ "MQ_OPEN_MAX", SYSCONF, _SC_MQ_OPEN_MAX }, -{ "MQ_PRIO_MAX", SYSCONF, _SC_MQ_PRIO_MAX }, -{ "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 }, - -{ "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 }, - -/* POSIX.1b Configurable System Variables */ -{ "PAGESIZE", SYSCONF, _SC_PAGESIZE }, -{ "_POSIX_ASYNCHRONOUS_IO", SYSCONF, _SC_ASYNCHRONOUS_IO }, -{ "_POSIX_FSYNC", SYSCONF, _SC_FSYNC }, -{ "_POSIX_MAPPED_FILES", SYSCONF, _SC_MAPPED_FILES }, -{ "_POSIX_MEMLOCK", SYSCONF, _SC_MEMLOCK }, -{ "_POSIX_MEMLOCK_RANGE", SYSCONF, _SC_MEMLOCK_RANGE }, -{ "_POSIX_MEMORY_PROTECTION", SYSCONF, _SC_MEMORY_PROTECTION }, -{ "_POSIX_MESSAGE_PASSING", SYSCONF, _SC_MESSAGE_PASSING }, -{ "_POSIX_MONOTONIC_CLOCK", SYSCONF, _SC_MONOTONIC_CLOCK }, -{ "_POSIX_PRIORITY_SCHEDULING", SYSCONF, _SC_PRIORITY_SCHEDULING }, -{ "_POSIX_SEMAPHORES", SYSCONF, _SC_SEMAPHORES }, -{ "_POSIX_SHARED_MEMORY_OBJECTS", SYSCONF, _SC_SHARED_MEMORY_OBJECTS }, -{ "_POSIX_SYNCHRONIZED_IO", SYSCONF, _SC_SYNCHRONIZED_IO }, -{ "_POSIX_TIMERS", SYSCONF, _SC_TIMERS }, - -{ "_POSIX_SYNC_IO", PATHCONF, _PC_SYNC_IO }, - -/* POSIX.1c Configurable System Variables */ -{ "LOGIN_NAME_MAX", SYSCONF, _SC_LOGIN_NAME_MAX }, -{ "_POSIX_THREADS", SYSCONF, _SC_THREADS }, - -/* POSIX.1j Configurable System Variables */ -{ "_POSIX_BARRIERS", SYSCONF, _SC_BARRIERS }, -{ "_POSIX_READER_WRITER_LOCKS", SYSCONF, _SC_READER_WRITER_LOCKS }, -{ "_POSIX_SPIN_LOCKS", SYSCONF, _SC_SPIN_LOCKS }, - -/* XPG4.2 Configurable System Variables */ -{ "IOV_MAX", SYSCONF, _SC_IOV_MAX }, -{ "PAGE_SIZE", SYSCONF, _SC_PAGE_SIZE }, -{ "_XOPEN_SHM", SYSCONF, _SC_XOPEN_SHM }, - -/* X/Open CAE Spec. Issue 5 Version 2 Configurable System Variables */ -{ "FILESIZEBITS", PATHCONF, _PC_FILESIZEBITS }, - -/* POSIX.1-2001 XSI Option Group Configurable System Variables */ -{ "ATEXIT_MAX", SYSCONF, _SC_ATEXIT_MAX }, - -/* POSIX.1-2001 TSF Configurable System Variables */ -{ "GETGR_R_SIZE_MAX", SYSCONF, _SC_GETGR_R_SIZE_MAX }, -{ "GETPW_R_SIZE_MAX", SYSCONF, _SC_GETPW_R_SIZE_MAX }, - -/* Commonly provided extensions */ -{ "_PHYS_PAGES", SYSCONF, _SC_PHYS_PAGES }, -{ "_AVPHYS_PAGES", SYSCONF, _SC_AVPHYS_PAGES }, -{ "_NPROCESSORS_CONF", SYSCONF, _SC_NPROCESSORS_CONF }, -{ "_NPROCESSORS_ONLN", SYSCONF, _SC_NPROCESSORS_ONLN }, - -/* Data type related extensions */ -{ "CHAR_BIT", CONSTANT, CHAR_BIT }, -{ "CHAR_MAX", CONSTANT, CHAR_MAX }, -{ "CHAR_MIN", CONSTANT, CHAR_MIN }, -{ "INT_MAX", CONSTANT, INT_MAX }, -{ "INT_MIN", CONSTANT, INT_MIN }, -{ "LONG_BIT", CONSTANT, LONG_BIT }, -{ "LONG_MAX", CONSTANT, LONG_MAX }, -{ "LONG_MIN", CONSTANT, LONG_MIN }, -{ "SCHAR_MAX", CONSTANT, SCHAR_MAX }, -{ "SCHAR_MIN", CONSTANT, SCHAR_MIN }, -{ "SHRT_MAX", CONSTANT, SHRT_MAX }, -{ "SHRT_MIN", CONSTANT, SHRT_MIN }, -{ "SSIZE_MAX", CONSTANT, SSIZE_MAX }, -{ "UCHAR_MAX", UCONSTANT, (long) UCHAR_MAX }, -{ "UINT_MAX", UCONSTANT, (long) UINT_MAX }, -{ "ULONG_MAX", UCONSTANT, (long) ULONG_MAX }, -{ "USHRT_MAX", UCONSTANT, (long) USHRT_MAX }, -{ "WORD_BIT", CONSTANT, WORD_BIT }, - -{ NULL, CONSTANT, 0L } -}; - -static int all = 0; - -static void usage(const char *p) -{ - (void)fprintf(stderr, "Usage: %s system_var\n\t%s -a\n" - "\t%s path_var pathname\n\t%s -a pathname\n", p, p, p, p); - exit(EXIT_FAILURE); -} - -static void print_long(const char *name, long val) -{ - if (all) printf("%s = %ld\n", name, val); - else printf("%ld\n", val); -} - -static void print_ulong(const char *name, unsigned long val) -{ - if (all) printf("%s = %lu\n", name, val); - else printf("%lu\n", val); -} - -static void print_string(const char *name, const char *val) -{ - if (all) printf("%s = %s\n", name, val); - else printf("%s\n", val); -} - -static int print_constant(const struct conf_variable *cp, const char *pathname) -{ - print_long(cp->name, cp->value); - return 0; -} - -static int print_uconstant(const struct conf_variable *cp, const char *pathname) -{ - print_ulong(cp->name, (unsigned long) cp->value); - return 0; -} - -static int print_sysconf(const struct conf_variable *cp, const char *pathname) -{ - long val; - - errno = 0; - if ((val = sysconf((int)cp->value)) == -1) { - if (errno != 0) err(EXIT_FAILURE, "sysconf(%ld)", cp->value); - return -1; - } - print_long(cp->name, val); - return 0; -} - -static int print_confstr(const struct conf_variable *cp, const char *pathname) -{ - size_t len; - char *val; - - errno = 0; - if ((len = confstr((int)cp->value, NULL, 0)) == 0) goto error; - if ((val = malloc(len)) == NULL) err(EXIT_FAILURE, "Can't allocate %zu bytes", len); - errno = 0; - if (confstr((int)cp->value, val, len) == 0) goto error; - print_string(cp->name, val); - free(val); - return 0; -error: - if (errno != EINVAL) err(EXIT_FAILURE, "confstr(%ld)", cp->value); - return -1; -} - -static int print_pathconf(const struct conf_variable *cp, const char *pathname) -{ - long val; - - errno = 0; - if ((val = pathconf(pathname, (int)cp->value)) == -1) { - if (all && errno == EINVAL) return 0; - if (errno != 0) err(EXIT_FAILURE, "pathconf(%s, %ld)", pathname, cp->value); - return -1; - } - print_long(cp->name, val); - return 0; -} - -typedef int (*handler_t)(const struct conf_variable *cp, const char *pathname); -static const handler_t type_handlers[NUM_TYPES] = { - [SYSCONF] = print_sysconf, - [CONFSTR] = print_confstr, - [PATHCONF] = print_pathconf, - [CONSTANT] = print_constant, - [UCONSTANT] = print_uconstant, -}; - -int main(int argc, char **argv) -{ - const char *progname = argv[0]; - const struct conf_variable *cp; - const char *varname, *pathname; - int ch, found = 0; - - (void)setlocale(LC_ALL, ""); - while ((ch = getopt(argc, argv, "a")) != -1) { - switch (ch) { - case 'a': - all = 1; - break; - case '?': - default: - usage(progname); - } - } - argc -= optind; - argv += optind; - - if (!all) { - if (argc == 0) - usage(progname); - varname = argv[0]; - argc--; - argv++; - } else - varname = NULL; - - if (argc > 1) - usage(progname); - pathname = argv[0]; /* may be NULL */ - - for (cp = conf_table; cp->name != NULL; cp++) { - if (!all && strcmp(varname, cp->name) != 0) continue; - if ((cp->type == PATHCONF) == (pathname != NULL)) { - if (type_handlers[cp->type](cp, pathname) < 0) - print_string(cp->name, "undefined"); - found = 1; - } else if (!all) - errx(EXIT_FAILURE, "%s: invalid variable type", cp->name); - } - if (!all && !found) errx(EXIT_FAILURE, "%s: unknown variable", varname); - (void)fflush(stdout); - return ferror(stdout) ? EXIT_FAILURE : EXIT_SUCCESS; -} |