posix/getconf.c

   1 /* Copyright (C) 1991, 92, 95, 96, 97, 98, 99 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Library General Public License as
   6    published by the Free Software Foundation; either version 2 of the
   7    License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Library General Public License for more details.
  13
  14    You should have received a copy of the GNU Library General Public
  15    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  16    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17    Boston, MA 02111-1307, USA.  */
  18
  19 #include <unistd.h>
  20 #include <errno.h>
  21 #include <error.h>
  22 #include <libintl.h>
  23 #include <locale.h>
  24 #include <string.h>
  25 #include <stdlib.h>
  26 #include <stdio.h>
  27
  28 #include "../version.h"
  29 #define PACKAGE _libc_intl_domainname
  30
  31 struct conf
  32   {
  33     const char *name;
  34     const int call_name;
  35     const enum { SYSCONF, CONFSTR, PATHCONF } call;
  36   };
  37
  38 static const struct conf vars[] =
  39   {
  40 #ifdef _PC_LINK_MAX
  41     { "LINK_MAX", _PC_LINK_MAX, PATHCONF },
  42 #endif
  43 #ifdef _PC_LINK_MAX
  44     { "_POSIX_LINK_MAX", _PC_LINK_MAX, PATHCONF },
  45 #endif
  46 #ifdef _PC_MAX_CANON
  47     { "MAX_CANON", _PC_MAX_CANON, PATHCONF },
  48 #endif
  49 #ifdef _PC_MAX_CANON
  50     { "_POSIX_MAX_CANON", _PC_MAX_CANON, PATHCONF },
  51 #endif
  52 #ifdef _PC_MAX_INPUT
  53     { "MAX_INPUT", _PC_MAX_INPUT, PATHCONF },
  54 #endif
  55 #ifdef _PC_MAX_INPUT
  56     { "_POSIX_MAX_INPUT", _PC_MAX_INPUT, PATHCONF },
  57 #endif
  58 #ifdef _PC_NAME_MAX
  59     { "NAME_MAX", _PC_NAME_MAX, PATHCONF },
  60 #endif
  61 #ifdef _PC_NAME_MAX
  62     { "_POSIX_NAME_MAX", _PC_NAME_MAX, PATHCONF },
  63 #endif
  64 #ifdef _PC_PATH_MAX
  65     { "PATH_MAX", _PC_PATH_MAX, PATHCONF },
  66 #endif
  67 #ifdef _PC_PATH_MAX
  68     { "_POSIX_PATH_MAX", _PC_PATH_MAX, PATHCONF },
  69 #endif
  70 #ifdef _PC_PIPE_BUF
  71     { "PIPE_BUF", _PC_PIPE_BUF, PATHCONF },
  72 #endif
  73 #ifdef _PC_PIPE_BUF
  74     { "_POSIX_PIPE_BUF", _PC_PIPE_BUF, PATHCONF },
  75 #endif
  76 #ifdef _PC_SOCK_MAXBUF
  77     { "SOCK_MAXBUF", _PC_SOCK_MAXBUF, PATHCONF },
  78 #endif
  79 #ifdef _PC_ASYNC_IO
  80     { "_POSIX_ASYNC_IO", _PC_ASYNC_IO, PATHCONF },
  81 #endif
  82 #ifdef _PC_CHOWN_RESTRICTED
  83     { "_POSIX_CHOWN_RESTRICTED", _PC_CHOWN_RESTRICTED, PATHCONF },
  84 #endif
  85 #ifdef _PC_NO_TRUNC
  86     { "_POSIX_NO_TRUNC", _PC_NO_TRUNC, PATHCONF },
  87 #endif
  88 #ifdef _PC_PRIO_IO
  89     { "_POSIX_PRIO_IO", _PC_PRIO_IO, PATHCONF },
  90 #endif
  91 #ifdef _PC_SYNC_IO
  92     { "_POSIX_SYNC_IO", _PC_SYNC_IO, PATHCONF },
  93 #endif
  94 #ifdef _PC_VDISABLE
  95     { "_POSIX_VDISABLE", _PC_VDISABLE, PATHCONF },
  96 #endif
  97
  98 #ifdef _SC_ARG_MAX
  99     { "ARG_MAX", _SC_ARG_MAX, SYSCONF },
 100 #endif
 101 #ifdef _SC_ATEXIT_MAX
 102     { "ATEXIT_MAX", _SC_ATEXIT_MAX, SYSCONF },
 103 #endif
 104 #ifdef _SC_CHAR_BIT
 105     { "CHAR_BIT", _SC_CHAR_BIT, SYSCONF },
 106 #endif
 107 #ifdef _SC_CHAR_MAX
 108     { "CHAR_MAX", _SC_CHAR_MAX, SYSCONF },
 109 #endif
 110 #ifdef _SC_CHAR_MIN
 111     { "CHAR_MIN", _SC_CHAR_MIN, SYSCONF },
 112 #endif
 113 #ifdef _SC_CHILD_MAX
 114     { "CHILD_MAX", _SC_CHILD_MAX, SYSCONF },
 115 #endif
 116 #ifdef _SC_CLK_TCK
 117     { "CLK_TCK", _SC_CLK_TCK, SYSCONF },
 118 #endif
 119 #ifdef _SC_INT_MAX
 120     { "INT_MAX", _SC_INT_MAX, SYSCONF },
 121 #endif
 122 #ifdef _SC_INT_MIN
 123     { "INT_MIN", _SC_INT_MIN, SYSCONF },
 124 #endif
 125 #ifdef _SC_UIO_MAXIOV
 126     { "IOV_MAX", _SC_UIO_MAXIOV, SYSCONF },
 127 #endif
 128 #ifdef _SC_LOGIN_NAME_MAX
 129     { "LOGNAME_MAX", _SC_LOGIN_NAME_MAX, SYSCONF },
 130 #endif
 131 #ifdef _SC_LONG_BIT
 132     { "LONG_BIT", _SC_LONG_BIT, SYSCONF },
 133 #endif
 134 #ifdef _SC_MB_LEN_MAX
 135     { "MB_LEN_MAX", _SC_MB_LEN_MAX, SYSCONF },
 136 #endif
 137 #ifdef _SC_NGROUPS_MAX
 138     { "NGROUPS_MAX", _SC_NGROUPS_MAX, SYSCONF },
 139 #endif
 140 #ifdef _SC_NL_ARGMAX
 141     { "NL_ARGMAX", _SC_NL_ARGMAX, SYSCONF },
 142 #endif
 143 #ifdef _SC_NL_LANGMAX
 144     { "NL_LANGMAX", _SC_NL_LANGMAX, SYSCONF },
 145 #endif
 146 #ifdef _SC_NL_MSGMAX
 147     { "NL_MSGMAX", _SC_NL_MSGMAX, SYSCONF },
 148 #endif
 149 #ifdef _SC_NL_NMAX
 150     { "NL_NMAX", _SC_NL_NMAX, SYSCONF },
 151 #endif
 152 #ifdef _SC_NL_SETMAX
 153     { "NL_SETMAX", _SC_NL_SETMAX, SYSCONF },
 154 #endif
 155 #ifdef _SC_NL_TEXTMAX
 156     { "NL_TEXTMAX", _SC_NL_TEXTMAX, SYSCONF },
 157 #endif
 158 #ifdef _SC_GETGR_R_SIZE_MAX
 159     { "NSS_BUFLEN_GROUP", _SC_GETGR_R_SIZE_MAX, SYSCONF },
 160 #endif
 161 #ifdef _SC_GETPW_R_SIZE_MAX
 162     { "NSS_BUFLEN_PASSWD", _SC_GETPW_R_SIZE_MAX, SYSCONF },
 163 #endif
 164 #ifdef _SC_NZERO
 165     { "NZERO", _SC_NZERO, SYSCONF },
 166 #endif
 167 #ifdef _SC_OPEN_MAX
 168     { "OPEN_MAX", _SC_OPEN_MAX, SYSCONF },
 169 #endif
 170 #ifdef _SC_PAGESIZE
 171     { "PAGESIZE", _SC_PAGESIZE, SYSCONF },
 172 #endif
 173 #ifdef _SC_PAGESIZE
 174     { "PAGE_SIZE", _SC_PAGESIZE, SYSCONF },
 175 #endif
 176 #ifdef _SC_PASS_MAX
 177     { "PASS_MAX", _SC_PASS_MAX, SYSCONF },
 178 #endif
 179 #ifdef _SC_THREAD_DESTRUCTOR_ITERATIONS
 180     { "PTHREAD_DESTRUCTOR_ITERATIONS", _SC_THREAD_DESTRUCTOR_ITERATIONS, SYSCONF },
 181 #endif
 182 #ifdef _SC_THREAD_KEYS_MAX
 183     { "PTHREAD_KEYS_MAX", _SC_THREAD_KEYS_MAX, SYSCONF },
 184 #endif
 185 #ifdef _SC_THREAD_STACK_MIN
 186     { "PTHREAD_STACK_MIN", _SC_THREAD_STACK_MIN, SYSCONF },
 187 #endif
 188 #ifdef _SC_THREAD_THREADS_MAX
 189     { "PTHREAD_THREADS_MAX", _SC_THREAD_THREADS_MAX, SYSCONF },
 190 #endif
 191 #ifdef _SC_SCHAR_MAX
 192     { "SCHAR_MAX", _SC_SCHAR_MAX, SYSCONF },
 193 #endif
 194 #ifdef _SC_SCHAR_MIN
 195     { "SCHAR_MIN", _SC_SCHAR_MIN, SYSCONF },
 196 #endif
 197 #ifdef _SC_SHRT_MAX
 198     { "SHRT_MAX", _SC_SHRT_MAX, SYSCONF },
 199 #endif
 200 #ifdef _SC_SHRT_MIN
 201     { "SHRT_MIN", _SC_SHRT_MIN, SYSCONF },
 202 #endif
 203 #ifdef _SC_SSIZE_MAX
 204     { "SSIZE_MAX", _SC_SSIZE_MAX, SYSCONF },
 205 #endif
 206 #ifdef _SC_TTY_NAME_MAX
 207     { "TTY_NAME_MAX", _SC_TTY_NAME_MAX, SYSCONF },
 208 #endif
 209 #ifdef _SC_TZNAME_MAX
 210     { "TZNAME_MAX", _SC_TZNAME_MAX, SYSCONF },
 211 #endif
 212 #ifdef _SC_UCHAR_MAX
 213     { "UCHAR_MAX", _SC_UCHAR_MAX, SYSCONF },
 214 #endif
 215 #ifdef _SC_UINT_MAX
 216     { "UINT_MAX", _SC_UINT_MAX, SYSCONF },
 217 #endif
 218 #ifdef _SC_UIO_MAXIOV
 219     { "UIO_MAXIOV", _SC_UIO_MAXIOV, SYSCONF },
 220 #endif
 221 #ifdef _SC_ULONG_MAX
 222     { "ULONG_MAX", _SC_ULONG_MAX, SYSCONF },
 223 #endif
 224 #ifdef _SC_USHRT_MAX
 225     { "USHRT_MAX", _SC_USHRT_MAX, SYSCONF },
 226 #endif
 227 #ifdef _SC_WORD_BIT
 228     { "WORD_BIT", _SC_WORD_BIT, SYSCONF },
 229 #endif
 230 #ifdef _SC_AVPHYS_PAGES
 231     { "_AVPHYS_PAGES", _SC_AVPHYS_PAGES, SYSCONF },
 232 #endif
 233 #ifdef _SC_NPROCESSORS_CONF
 234     { "_NPROCESSORS_CONF", _SC_NPROCESSORS_CONF, SYSCONF },
 235 #endif
 236 #ifdef _SC_NPROCESSORS_ONLN
 237     { "_NPROCESSORS_ONLN", _SC_NPROCESSORS_ONLN, SYSCONF },
 238 #endif
 239 #ifdef _SC_PHYS_PAGES
 240     { "_PHYS_PAGES", _SC_PHYS_PAGES, SYSCONF },
 241 #endif
 242 #ifdef _SC_ARG_MAX
 243     { "_POSIX_ARG_MAX", _SC_ARG_MAX, SYSCONF },
 244 #endif
 245 #ifdef _SC_ASYNCHRONOUS_IO
 246     { "_POSIX_ASYNCHRONOUS_IO", _SC_ASYNCHRONOUS_IO, SYSCONF },
 247 #endif
 248 #ifdef _SC_CHILD_MAX
 249     { "_POSIX_CHILD_MAX", _SC_CHILD_MAX, SYSCONF },
 250 #endif
 251 #ifdef _SC_FSYNC
 252     { "_POSIX_FSYNC", _SC_FSYNC, SYSCONF },
 253 #endif
 254 #ifdef _SC_JOB_CONTROL
 255     { "_POSIX_JOB_CONTROL", _SC_JOB_CONTROL, SYSCONF },
 256 #endif
 257 #ifdef _SC_MAPPED_FILES
 258     { "_POSIX_MAPPED_FILES", _SC_MAPPED_FILES, SYSCONF },
 259 #endif
 260 #ifdef _SC_MEMLOCK
 261     { "_POSIX_MEMLOCK", _SC_MEMLOCK, SYSCONF },
 262 #endif
 263 #ifdef _SC_MEMLOCK_RANGE
 264     { "_POSIX_MEMLOCK_RANGE", _SC_MEMLOCK_RANGE, SYSCONF },
 265 #endif
 266 #ifdef _SC_MEMORY_PROTECTION
 267     { "_POSIX_MEMORY_PROTECTION", _SC_MEMORY_PROTECTION, SYSCONF },
 268 #endif
 269 #ifdef _SC_MESSAGE_PASSING
 270     { "_POSIX_MESSAGE_PASSING", _SC_MESSAGE_PASSING, SYSCONF },
 271 #endif
 272 #ifdef _SC_NGROUPS_MAX
 273     { "_POSIX_NGROUPS_MAX", _SC_NGROUPS_MAX, SYSCONF },
 274 #endif
 275 #ifdef _SC_OPEN_MAX
 276     { "_POSIX_OPEN_MAX", _SC_OPEN_MAX, SYSCONF },
 277 #endif
 278 #ifdef _SC_PII
 279     { "_POSIX_PII", _SC_PII, SYSCONF },
 280 #endif
 281 #ifdef _SC_PII_INTERNET
 282     { "_POSIX_PII_INTERNET", _SC_PII_INTERNET, SYSCONF },
 283 #endif
 284 #ifdef _SC_PII_INTERNET_DGRAM
 285     { "_POSIX_PII_INTERNET_DGRAM", _SC_PII_INTERNET_DGRAM, SYSCONF },
 286 #endif
 287 #ifdef _SC_PII_INTERNET_STREAM
 288     { "_POSIX_PII_INTERNET_STREAM", _SC_PII_INTERNET_STREAM, SYSCONF },
 289 #endif
 290 #ifdef _SC_PII_OSI
 291     { "_POSIX_PII_OSI", _SC_PII_OSI, SYSCONF },
 292 #endif
 293 #ifdef _SC_PII_OSI_CLTS
 294     { "_POSIX_PII_OSI_CLTS", _SC_PII_OSI_CLTS, SYSCONF },
 295 #endif
 296 #ifdef _SC_PII_OSI_COTS
 297     { "_POSIX_PII_OSI_COTS", _SC_PII_OSI_COTS, SYSCONF },
 298 #endif
 299 #ifdef _SC_PII_OSI_M
 300     { "_POSIX_PII_OSI_M", _SC_PII_OSI_M, SYSCONF },
 301 #endif
 302 #ifdef _SC_PII_SOCKET
 303     { "_POSIX_PII_SOCKET", _SC_PII_SOCKET, SYSCONF },
 304 #endif
 305 #ifdef _SC_PII_XTI
 306     { "_POSIX_PII_XTI", _SC_PII_XTI, SYSCONF },
 307 #endif
 308 #ifdef _SC_POLL
 309     { "_POSIX_POLL", _SC_POLL, SYSCONF },
 310 #endif
 311 #ifdef _SC_PRIORITIZED_IO
 312     { "_POSIX_PRIORITIZED_IO", _SC_PRIORITIZED_IO, SYSCONF },
 313 #endif
 314 #ifdef _SC_PRIORITY_SCHEDULING
 315     { "_POSIX_PRIORITY_SCHEDULING", _SC_PRIORITY_SCHEDULING, SYSCONF },
 316 #endif
 317 #ifdef _SC_REALTIME_SIGNALS
 318     { "_POSIX_REALTIME_SIGNALS", _SC_REALTIME_SIGNALS, SYSCONF },
 319 #endif
 320 #ifdef _SC_SAVED_IDS
 321     { "_POSIX_SAVED_IDS", _SC_SAVED_IDS, SYSCONF },
 322 #endif
 323 #ifdef _SC_SELECT
 324     { "_POSIX_SELECT", _SC_SELECT, SYSCONF },
 325 #endif
 326 #ifdef _SC_SEMAPHORES
 327     { "_POSIX_SEMAPHORES", _SC_SEMAPHORES, SYSCONF },
 328 #endif
 329 #ifdef _SC_SHARED_MEMORY_OBJECTS
 330     { "_POSIX_SHARED_MEMORY_OBJECTS", _SC_SHARED_MEMORY_OBJECTS, SYSCONF },
 331 #endif
 332 #ifdef _SC_SSIZE_MAX
 333     { "_POSIX_SSIZE_MAX", _SC_SSIZE_MAX, SYSCONF },
 334 #endif
 335 #ifdef _SC_STREAM_MAX
 336     { "_POSIX_STREAM_MAX", _SC_STREAM_MAX, SYSCONF },
 337 #endif
 338 #ifdef _SC_SYNCHRONIZED_IO
 339     { "_POSIX_SYNCHRONIZED_IO", _SC_SYNCHRONIZED_IO, SYSCONF },
 340 #endif
 341 #ifdef _SC_THREADS
 342     { "_POSIX_THREADS", _SC_THREADS, SYSCONF },
 343 #endif
 344 #ifdef _SC_THREAD_ATTR_STACKADDR
 345     { "_POSIX_THREAD_ATTR_STACKADDR", _SC_THREAD_ATTR_STACKADDR, SYSCONF },
 346 #endif
 347 #ifdef _SC_THREAD_ATTR_STACKSIZE
 348     { "_POSIX_THREAD_ATTR_STACKSIZE", _SC_THREAD_ATTR_STACKSIZE, SYSCONF },
 349 #endif
 350 #ifdef _SC_THREAD_PRIORITY_SCHEDULING
 351     { "_POSIX_THREAD_PRIORITY_SCHEDULING", _SC_THREAD_PRIORITY_SCHEDULING, SYSCONF },
 352 #endif
 353 #ifdef _SC_THREAD_PRIO_INHERIT
 354     { "_POSIX_THREAD_PRIO_INHERIT", _SC_THREAD_PRIO_INHERIT, SYSCONF },
 355 #endif
 356 #ifdef _SC_THREAD_PRIO_PROTECT
 357     { "_POSIX_THREAD_PRIO_PROTECT", _SC_THREAD_PRIO_PROTECT, SYSCONF },
 358 #endif
 359 #ifdef _SC_THREAD_PROCESS_SHARED
 360     { "_POSIX_THREAD_PROCESS_SHARED", _SC_THREAD_PROCESS_SHARED, SYSCONF },
 361 #endif
 362 #ifdef _SC_THREAD_SAFE_FUNCTIONS
 363     { "_POSIX_THREAD_SAFE_FUNCTIONS", _SC_THREAD_SAFE_FUNCTIONS, SYSCONF },
 364 #endif
 365 #ifdef _SC_TIMERS
 366     { "_POSIX_TIMERS", _SC_TIMERS, SYSCONF },
 367 #endif
 368 #ifdef _SC_TZNAME_MAX
 369     { "_POSIX_TZNAME_MAX", _SC_TZNAME_MAX, SYSCONF },
 370 #endif
 371 #ifdef _SC_VERSION
 372     { "_POSIX_VERSION", _SC_VERSION, SYSCONF },
 373 #endif
 374 #ifdef _SC_T_IOV_MAX
 375     { "_T_IOV_MAX", _SC_T_IOV_MAX, SYSCONF },
 376 #endif
 377 #ifdef _SC_XOPEN_CRYPT
 378     { "_XOPEN_CRYPT", _SC_XOPEN_CRYPT, SYSCONF },
 379 #endif
 380 #ifdef _SC_XOPEN_ENH_I18N
 381     { "_XOPEN_ENH_I18N", _SC_XOPEN_ENH_I18N, SYSCONF },
 382 #endif
 383 #ifdef _SC_XOPEN_LEGACY
 384     { "_XOPEN_LEGACY", _SC_XOPEN_LEGACY, SYSCONF },
 385 #endif
 386 #ifdef _SC_XOPEN_REALTIME
 387     { "_XOPEN_REALTIME", _SC_XOPEN_REALTIME, SYSCONF },
 388 #endif
 389 #ifdef _SC_XOPEN_REALTIME_THREADS
 390     { "_XOPEN_REALTIME_THREADS", _SC_XOPEN_REALTIME_THREADS, SYSCONF },
 391 #endif
 392 #ifdef _SC_XOPEN_SHM
 393     { "_XOPEN_SHM", _SC_XOPEN_SHM, SYSCONF },
 394 #endif
 395 #ifdef _SC_XOPEN_UNIX
 396     { "_XOPEN_UNIX", _SC_XOPEN_UNIX, SYSCONF },
 397 #endif
 398 #ifdef _SC_XOPEN_VERSION
 399     { "_XOPEN_VERSION", _SC_XOPEN_VERSION, SYSCONF },
 400 #endif
 401 #ifdef _SC_XOPEN_XCU_VERSION
 402     { "_XOPEN_XCU_VERSION", _SC_XOPEN_XCU_VERSION, SYSCONF },
 403 #endif
 404 #ifdef _SC_XOPEN_XPG2
 405     { "_XOPEN_XPG2", _SC_XOPEN_XPG2, SYSCONF },
 406 #endif
 407 #ifdef _SC_XOPEN_XPG3
 408     { "_XOPEN_XPG3", _SC_XOPEN_XPG3, SYSCONF },
 409 #endif
 410 #ifdef _SC_XOPEN_XPG4
 411     { "_XOPEN_XPG4", _SC_XOPEN_XPG4, SYSCONF },
 412 #endif
 413     /* POSIX.2  */
 414 #ifdef _SC_BC_BASE_MAX
 415     { "BC_BASE_MAX", _SC_BC_BASE_MAX, SYSCONF },
 416 #endif
 417 #ifdef _SC_BC_DIM_MAX
 418     { "BC_DIM_MAX", _SC_BC_DIM_MAX, SYSCONF },
 419 #endif
 420 #ifdef _SC_BC_SCALE_MAX
 421     { "BC_SCALE_MAX", _SC_BC_SCALE_MAX, SYSCONF },
 422 #endif
 423 #ifdef _SC_BC_STRING_MAX
 424     { "BC_STRING_MAX", _SC_BC_STRING_MAX, SYSCONF },
 425 #endif
 426     { "CHARCLASS_NAME_MAX", _SC_CHARCLASS_NAME_MAX, SYSCONF },
 427 #ifdef _SC_COLL_WEIGHTS_MAX
 428     { "COLL_WEIGHTS_MAX", _SC_COLL_WEIGHTS_MAX, SYSCONF },
 429 #endif
 430 #ifdef _SC_EQUIV_CLASS_MAX
 431     { "EQUIV_CLASS_MAX", _SC_EQUIV_CLASS_MAX, SYSCONF },
 432 #endif
 433 #ifdef _SC_EXPR_NEST_MAX
 434     { "EXPR_NEST_MAX", _SC_EXPR_NEST_MAX, SYSCONF },
 435 #endif
 436 #ifdef _SC_LINE_MAX
 437     { "LINE_MAX", _SC_LINE_MAX, SYSCONF },
 438 #endif
 439 #ifdef _SC_BC_BASE_MAX
 440     { "POSIX2_BC_BASE_MAX", _SC_BC_BASE_MAX, SYSCONF },
 441 #endif
 442 #ifdef _SC_BC_DIM_MAX
 443     { "POSIX2_BC_DIM_MAX", _SC_BC_DIM_MAX, SYSCONF },
 444 #endif
 445 #ifdef _SC_BC_SCALE_MAX
 446     { "POSIX2_BC_SCALE_MAX", _SC_BC_SCALE_MAX, SYSCONF },
 447 #endif
 448 #ifdef _SC_BC_STRING_MAX
 449     { "POSIX2_BC_STRING_MAX", _SC_BC_STRING_MAX, SYSCONF },
 450 #endif
 451 #ifdef _SC_2_CHAR_TERM
 452     { "POSIX2_CHAR_TERM", _SC_2_CHAR_TERM, SYSCONF },
 453 #endif
 454 #ifdef _SC_COLL_WEIGHTS_MAX
 455     { "POSIX2_COLL_WEIGHTS_MAX", _SC_COLL_WEIGHTS_MAX, SYSCONF },
 456 #endif
 457 #ifdef _SC_2_C_BIND
 458     { "POSIX2_C_BIND", _SC_2_C_BIND, SYSCONF },
 459 #endif
 460 #ifdef _SC_2_C_DEV
 461     { "POSIX2_C_DEV", _SC_2_C_DEV, SYSCONF },
 462 #endif
 463 #ifdef _SC_2_C_VERSION
 464     { "POSIX2_C_VERSION", _SC_2_C_VERSION, SYSCONF },
 465 #endif
 466 #ifdef _SC_EXPR_NEST_MAX
 467     { "POSIX2_EXPR_NEST_MAX", _SC_EXPR_NEST_MAX, SYSCONF },
 468 #endif
 469 #ifdef _SC_2_FORT_DEV
 470     { "POSIX2_FORT_DEV", _SC_2_FORT_DEV, SYSCONF },
 471 #endif
 472 #ifdef _SC_2_FORT_RUN
 473     { "POSIX2_FORT_RUN", _SC_2_FORT_RUN, SYSCONF },
 474 #endif
 475 #ifdef _SC_LINE_MAX
 476     { "POSIX2_LINE_MAX", _SC_LINE_MAX, SYSCONF },
 477 #endif
 478 #ifdef _SC_2_LOCALEDEF
 479     { "POSIX2_LOCALEDEF", _SC_2_LOCALEDEF, SYSCONF },
 480 #endif
 481 #ifdef _SC_RE_DUP_MAX
 482     { "POSIX2_RE_DUP_MAX", _SC_RE_DUP_MAX, SYSCONF },
 483 #endif
 484 #ifdef _SC_2_SW_DEV
 485     { "POSIX2_SW_DEV", _SC_2_SW_DEV, SYSCONF },
 486 #endif
 487 #ifdef _SC_2_UPE
 488     { "POSIX2_UPE", _SC_2_UPE, SYSCONF },
 489 #endif
 490 #ifdef _SC_2_VERSION
 491     { "POSIX2_VERSION", _SC_2_VERSION, SYSCONF },
 492 #endif
 493 #ifdef _SC_RE_DUP_MAX
 494     { "RE_DUP_MAX", _SC_RE_DUP_MAX, SYSCONF },
 495 #endif
 496
 497 #ifdef _CS_PATH
 498     { "PATH", _CS_PATH, CONFSTR },
 499 #endif
 500 #ifdef _CS_PATH
 501     { "CS_PATH", _CS_PATH, CONFSTR },
 502 #endif
 503
 504     /* LFS */
 505 #ifdef _CS_LFS_CFLAGS
 506     { "LFS_CFLAGS", _CS_LFS_CFLAGS, CONFSTR },
 507 #endif
 508 #ifdef _CS_LFS_LDFLAGS
 509     { "LFS_LDFLAGS", _CS_LFS_LDFLAGS, CONFSTR },
 510 #endif
 511 #ifdef _CS_LFS_LIBS
 512     { "LFS_LIBS", _CS_LFS_LIBS, CONFSTR },
 513 #endif
 514 #ifdef _CS_LFS_LINTFLAGS
 515     { "LFS_LINTFLAGS", _CS_LFS_LINTFLAGS, CONFSTR },
 516 #endif
 517 #ifdef _CS_LFS64_CFLAGS
 518     { "LFS64_CFLAGS", _CS_LFS64_CFLAGS, CONFSTR },
 519 #endif
 520 #ifdef _CS_LFS64_LDFLAGS
 521     { "LFS64_LDFLAGS", _CS_LFS64_LDFLAGS, CONFSTR },
 522 #endif
 523 #ifdef _CS_LFS64_LIBS
 524     { "LFS64_LIBS", _CS_LFS64_LIBS, CONFSTR },
 525 #endif
 526 #ifdef _CS_LFS64_LINTFLAGS
 527     { "LFS64_LINTFLAGS", _CS_LFS64_LINTFLAGS, CONFSTR },
 528 #endif
 529
 530     /* Programming environments.  */
 531 #ifdef _SC_XBS5_ILP32_OFF32
 532     { "XBS5_ILP32_OFF32", _SC_XBS5_ILP32_OFF32, SYSCONF },
 533 #endif
 534 #ifdef _CS_XBS5_ILP32_OFF32_CFLAGS
 535     { "XBS5_ILP32_OFF32_CFLAGS", _CS_XBS5_ILP32_OFF32_CFLAGS, CONFSTR },
 536 #endif
 537 #ifdef _CS_XBS5_ILP32_OFF32_LDFLAGS
 538     { "XBS5_ILP32_OFF32_LDFLAGS", _CS_XBS5_ILP32_OFF32_LDFLAGS, CONFSTR },
 539 #endif
 540 #ifdef _CS_XBS5_ILP32_OFF32_LIBS
 541     { "XBS5_ILP32_OFF32_LIBS", _CS_XBS5_ILP32_OFF32_LIBS, CONFSTR },
 542 #endif
 543 #ifdef _CS_XBS5_ILP32_OFF32_LINTFLAGS
 544     { "XBS5_ILP32_OFF32_LINTFLAGS", _CS_XBS5_ILP32_OFF32_LINTFLAGS, CONFSTR },
 545 #endif
 546
 547 #ifdef _SC_XBS5_ILP32_OFFBIG
 548     { "XBS5_ILP32_OFFBIG", _SC_XBS5_ILP32_OFFBIG, SYSCONF },
 549 #endif
 550 #ifdef _CS_XBS5_ILP32_OFFBIG_CFLAGS
 551     { "XBS5_ILP32_OFFBIG_CFLAGS", _CS_XBS5_ILP32_OFFBIG_CFLAGS, CONFSTR },
 552 #endif
 553 #ifdef _CS_XBS5_ILP32_OFFBIG_LDFLAGS
 554     { "XBS5_ILP32_OFFBIG_LDFLAGS", _CS_XBS5_ILP32_OFFBIG_LDFLAGS, CONFSTR },
 555 #endif
 556 #ifdef _CS_XBS5_ILP32_OFFBIG_LIBS
 557     { "XBS5_ILP32_OFFBIG_LIBS", _CS_XBS5_ILP32_OFFBIG_LIBS, CONFSTR },
 558 #endif
 559 #ifdef _CS_XBS5_ILP32_OFFBIG_LINTFLAGS
 560     { "XBS5_ILP32_OFFBIG_LINTFLAGS", _CS_XBS5_ILP32_OFFBIG_LINTFLAGS, CONFSTR },
 561 #endif
 562
 563 #ifdef _SC_XBS5_LP64_OFF64
 564     { "XBS5_LP64_OFF64", _SC_XBS5_LP64_OFF64, SYSCONF },
 565 #endif
 566 #ifdef _CS_XBS5_LP64_OFF64_CFLAGS
 567     { "XBS5_LP64_OFF64_CFLAGS", _CS_XBS5_LP64_OFF64_CFLAGS, CONFSTR },
 568 #endif
 569 #ifdef _CS_XBS5_LP64_OFF64_LDFLAGS
 570     { "XBS5_LP64_OFF64_LDFLAGS", _CS_XBS5_LP64_OFF64_LDFLAGS, CONFSTR },
 571 #endif
 572 #ifdef _CS_XBS5_LP64_OFF64_LIBS
 573     { "XBS5_LP64_OFF64_LIBS", _CS_XBS5_LP64_OFF64_LIBS, CONFSTR },
 574 #endif
 575 #ifdef _CS_XBS5_LP64_OFF64_LINTFLAGS
 576     { "XBS5_LP64_OFF64_LINTFLAGS", _CS_XBS5_LP64_OFF64_LINTFLAGS, CONFSTR },
 577 #endif
 578
 579 #ifdef _SC_XBS5_LPBIG_OFFBIG
 580     { "XBS5_LPBIG_OFFBIG", _SC_XBS5_LPBIG_OFFBIG, SYSCONF },
 581 #endif
 582 #ifdef _CS_XBS5_LPBIG_OFFBIG_CFLAGS
 583     { "XBS5_LPBIG_OFFBIG_CFLAGS", _CS_XBS5_LPBIG_OFFBIG_CFLAGS, CONFSTR },
 584 #endif
 585 #ifdef _CS_XBS5_LPBIG_OFFBIG_LDFLAGS
 586     { "XBS5_LPBIG_OFFBIG_LDFLAGS", _CS_XBS5_LPBIG_OFFBIG_LDFLAGS, CONFSTR },
 587 #endif
 588 #ifdef _CS_XBS5_LPBIG_OFFBIG_LIBS
 589     { "XBS5_LPBIG_OFFBIG_LIBS", _CS_XBS5_LPBIG_OFFBIG_LIBS, CONFSTR },
 590 #endif
 591 #ifdef _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS
 592     { "XBS5_LPBIG_OFFBIG_LINTFLAGS", _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS, CONFSTR },
 593 #endif
 594
 595     { NULL, 0, SYSCONF }
 596   };
 597
 598 extern const char *__progname;
 599
 600
 601 static void
 602 usage (void)
 603 {
 604   fprintf (stderr, _("Usage: %s variable_name [pathname]\n"), __progname);
 605   exit (2);
 606 }
 607
 608 int
 609 main (int argc, char *argv[])
 610 {
 611   register const struct conf *c;
 612
 613   /* Set locale.  Do not set LC_ALL because the other categories must
 614      not be affected (according to POSIX.2).  */
 615   setlocale (LC_CTYPE, "");
 616   setlocale (LC_MESSAGES, "");
 617
 618   /* Initialize the message catalog.  */
 619   textdomain (PACKAGE);
 620
 621   if (argc > 1 && strcmp (argv[1], "--version") == 0)
 622     {
 623       fprintf (stderr, "getconf (GNU %s) %s\n", PACKAGE, VERSION);
 624       fprintf (stderr, gettext ("\
 625 Copyright (C) %s Free Software Foundation, Inc.\n\
 626 This is free software; see the source for copying conditions.  There is NO\n\
 627 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\
 628 "), "1999");
 629       fprintf (stderr, gettext ("Written by %s.\n"), "Roland McGrath");
 630       return 0;
 631     }
 632
 633   if (argc < 2 || argc > 3)
 634     usage ();
 635
 636   for (c = vars; c->name != NULL; ++c)
 637     if (!strcmp (c->name, argv[1]))
 638       {
 639         long int value;
 640         size_t clen;
 641         char *cvalue;
 642         switch (c->call)
 643           {
 644           case PATHCONF:
 645             if (argc < 3)
 646               usage ();
 647             errno = 0;
 648             value = pathconf (argv[2], c->call_name);
 649             if (value == -1)
 650               {
 651                 if (errno)
 652                   error (3, errno, "pathconf: %s", argv[2]);
 653                 else
 654                   puts (_("undefined"));
 655               }
 656             else
 657               printf ("%ld\n", value);
 658             exit (0);
 659
 660           case SYSCONF:
 661             if (argc > 2)
 662               usage ();
 663             value = sysconf (c->call_name);
 664             if (value == -1l)
 665               {
 666                 if (c->call_name == _SC_UINT_MAX
 667                     || c->call_name == _SC_ULONG_MAX)
 668                   printf ("%lu\n", value);
 669                 else
 670                   puts (_("undefined"));
 671               }
 672             else
 673               printf ("%ld\n", value);
 674             exit (0);
 675
 676           case CONFSTR:
 677             if (argc > 2)
 678               usage ();
 679             clen = confstr (c->call_name, (char *) NULL, 0);
 680             cvalue = (char *) malloc (clen);
 681             if (cvalue == NULL)
 682               error (3, 0, _("memory exhausted"));
 683
 684             if (confstr (c->call_name, cvalue, clen) != clen)
 685               error (3, errno, "confstr");
 686
 687             printf ("%.*s\n", (int) clen, cvalue);
 688             exit (0);
 689           }
 690       }
 691
 692   error (2, 0, _("Unrecognized variable `%s'"), argv[1]);
 693   /* NOTREACHED */
 694   return 2;
 695 }