posix/getconf.c

   1 /* Copyright (C) 1991-2014 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    This program is free software; you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published
   6    by the Free Software Foundation; version 2 of the License, or
   7    (at your option) any later version.
   8
   9    This program 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
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program; if not, see <http://www.gnu.org/licenses/>.  */
  16
  17 #include <unistd.h>
  18 #include <errno.h>
  19 #include <error.h>
  20 #include <libintl.h>
  21 #include <locale.h>
  22 #include <string.h>
  23 #include <stdlib.h>
  24 #include <stdio.h>
  25
  26 #include "../version.h"
  27 #define PACKAGE _libc_intl_domainname
  28
  29 struct conf
  30   {
  31     const char *name;
  32     const int call_name;
  33     const enum { SYSCONF, CONFSTR, PATHCONF } call;
  34   };
  35
  36 static const struct conf vars[] =
  37   {
  38 #ifdef _PC_LINK_MAX
  39     { "LINK_MAX", _PC_LINK_MAX, PATHCONF },
  40 #endif
  41 #ifdef _PC_LINK_MAX
  42     { "_POSIX_LINK_MAX", _PC_LINK_MAX, PATHCONF },
  43 #endif
  44 #ifdef _PC_MAX_CANON
  45     { "MAX_CANON", _PC_MAX_CANON, PATHCONF },
  46 #endif
  47 #ifdef _PC_MAX_CANON
  48     { "_POSIX_MAX_CANON", _PC_MAX_CANON, PATHCONF },
  49 #endif
  50 #ifdef _PC_MAX_INPUT
  51     { "MAX_INPUT", _PC_MAX_INPUT, PATHCONF },
  52 #endif
  53 #ifdef _PC_MAX_INPUT
  54     { "_POSIX_MAX_INPUT", _PC_MAX_INPUT, PATHCONF },
  55 #endif
  56 #ifdef _PC_NAME_MAX
  57     { "NAME_MAX", _PC_NAME_MAX, PATHCONF },
  58 #endif
  59 #ifdef _PC_NAME_MAX
  60     { "_POSIX_NAME_MAX", _PC_NAME_MAX, PATHCONF },
  61 #endif
  62 #ifdef _PC_PATH_MAX
  63     { "PATH_MAX", _PC_PATH_MAX, PATHCONF },
  64 #endif
  65 #ifdef _PC_PATH_MAX
  66     { "_POSIX_PATH_MAX", _PC_PATH_MAX, PATHCONF },
  67 #endif
  68 #ifdef _PC_PIPE_BUF
  69     { "PIPE_BUF", _PC_PIPE_BUF, PATHCONF },
  70 #endif
  71 #ifdef _PC_PIPE_BUF
  72     { "_POSIX_PIPE_BUF", _PC_PIPE_BUF, PATHCONF },
  73 #endif
  74 #ifdef _PC_SOCK_MAXBUF
  75     { "SOCK_MAXBUF", _PC_SOCK_MAXBUF, PATHCONF },
  76 #endif
  77 #ifdef _PC_ASYNC_IO
  78     { "_POSIX_ASYNC_IO", _PC_ASYNC_IO, PATHCONF },
  79 #endif
  80 #ifdef _PC_CHOWN_RESTRICTED
  81     { "_POSIX_CHOWN_RESTRICTED", _PC_CHOWN_RESTRICTED, PATHCONF },
  82 #endif
  83 #ifdef _PC_NO_TRUNC
  84     { "_POSIX_NO_TRUNC", _PC_NO_TRUNC, PATHCONF },
  85 #endif
  86 #ifdef _PC_PRIO_IO
  87     { "_POSIX_PRIO_IO", _PC_PRIO_IO, PATHCONF },
  88 #endif
  89 #ifdef _PC_SYNC_IO
  90     { "_POSIX_SYNC_IO", _PC_SYNC_IO, PATHCONF },
  91 #endif
  92 #ifdef _PC_VDISABLE
  93     { "_POSIX_VDISABLE", _PC_VDISABLE, PATHCONF },
  94 #endif
  95
  96 #ifdef _SC_ARG_MAX
  97     { "ARG_MAX", _SC_ARG_MAX, SYSCONF },
  98 #endif
  99 #ifdef _SC_ATEXIT_MAX
 100     { "ATEXIT_MAX", _SC_ATEXIT_MAX, SYSCONF },
 101 #endif
 102 #ifdef _SC_CHAR_BIT
 103     { "CHAR_BIT", _SC_CHAR_BIT, SYSCONF },
 104 #endif
 105 #ifdef _SC_CHAR_MAX
 106     { "CHAR_MAX", _SC_CHAR_MAX, SYSCONF },
 107 #endif
 108 #ifdef _SC_CHAR_MIN
 109     { "CHAR_MIN", _SC_CHAR_MIN, SYSCONF },
 110 #endif
 111 #ifdef _SC_CHILD_MAX
 112     { "CHILD_MAX", _SC_CHILD_MAX, SYSCONF },
 113 #endif
 114 #ifdef _SC_CLK_TCK
 115     { "CLK_TCK", _SC_CLK_TCK, SYSCONF },
 116 #endif
 117 #ifdef _SC_INT_MAX
 118     { "INT_MAX", _SC_INT_MAX, SYSCONF },
 119 #endif
 120 #ifdef _SC_INT_MIN
 121     { "INT_MIN", _SC_INT_MIN, SYSCONF },
 122 #endif
 123 #ifdef _SC_UIO_MAXIOV
 124     { "IOV_MAX", _SC_UIO_MAXIOV, SYSCONF },
 125 #endif
 126 #ifdef _SC_LOGIN_NAME_MAX
 127     { "LOGNAME_MAX", _SC_LOGIN_NAME_MAX, SYSCONF },
 128 #endif
 129 #ifdef _SC_LONG_BIT
 130     { "LONG_BIT", _SC_LONG_BIT, SYSCONF },
 131 #endif
 132 #ifdef _SC_MB_LEN_MAX
 133     { "MB_LEN_MAX", _SC_MB_LEN_MAX, SYSCONF },
 134 #endif
 135 #ifdef _SC_NGROUPS_MAX
 136     { "NGROUPS_MAX", _SC_NGROUPS_MAX, SYSCONF },
 137 #endif
 138 #ifdef _SC_NL_ARGMAX
 139     { "NL_ARGMAX", _SC_NL_ARGMAX, SYSCONF },
 140 #endif
 141 #ifdef _SC_NL_LANGMAX
 142     { "NL_LANGMAX", _SC_NL_LANGMAX, SYSCONF },
 143 #endif
 144 #ifdef _SC_NL_MSGMAX
 145     { "NL_MSGMAX", _SC_NL_MSGMAX, SYSCONF },
 146 #endif
 147 #ifdef _SC_NL_NMAX
 148     { "NL_NMAX", _SC_NL_NMAX, SYSCONF },
 149 #endif
 150 #ifdef _SC_NL_SETMAX
 151     { "NL_SETMAX", _SC_NL_SETMAX, SYSCONF },
 152 #endif
 153 #ifdef _SC_NL_TEXTMAX
 154     { "NL_TEXTMAX", _SC_NL_TEXTMAX, SYSCONF },
 155 #endif
 156 #ifdef _SC_GETGR_R_SIZE_MAX
 157     { "NSS_BUFLEN_GROUP", _SC_GETGR_R_SIZE_MAX, SYSCONF },
 158 #endif
 159 #ifdef _SC_GETPW_R_SIZE_MAX
 160     { "NSS_BUFLEN_PASSWD", _SC_GETPW_R_SIZE_MAX, SYSCONF },
 161 #endif
 162 #ifdef _SC_NZERO
 163     { "NZERO", _SC_NZERO, SYSCONF },
 164 #endif
 165 #ifdef _SC_OPEN_MAX
 166     { "OPEN_MAX", _SC_OPEN_MAX, SYSCONF },
 167 #endif
 168 #ifdef _SC_PAGESIZE
 169     { "PAGESIZE", _SC_PAGESIZE, SYSCONF },
 170 #endif
 171 #ifdef _SC_PAGESIZE
 172     { "PAGE_SIZE", _SC_PAGESIZE, SYSCONF },
 173 #endif
 174 #ifdef _SC_PASS_MAX
 175     { "PASS_MAX", _SC_PASS_MAX, SYSCONF },
 176 #endif
 177 #ifdef _SC_THREAD_DESTRUCTOR_ITERATIONS
 178     { "PTHREAD_DESTRUCTOR_ITERATIONS", _SC_THREAD_DESTRUCTOR_ITERATIONS, SYSCONF },
 179 #endif
 180 #ifdef _SC_THREAD_KEYS_MAX
 181     { "PTHREAD_KEYS_MAX", _SC_THREAD_KEYS_MAX, SYSCONF },
 182 #endif
 183 #ifdef _SC_THREAD_STACK_MIN
 184     { "PTHREAD_STACK_MIN", _SC_THREAD_STACK_MIN, SYSCONF },
 185 #endif
 186 #ifdef _SC_THREAD_THREADS_MAX
 187     { "PTHREAD_THREADS_MAX", _SC_THREAD_THREADS_MAX, SYSCONF },
 188 #endif
 189 #ifdef _SC_SCHAR_MAX
 190     { "SCHAR_MAX", _SC_SCHAR_MAX, SYSCONF },
 191 #endif
 192 #ifdef _SC_SCHAR_MIN
 193     { "SCHAR_MIN", _SC_SCHAR_MIN, SYSCONF },
 194 #endif
 195 #ifdef _SC_SHRT_MAX
 196     { "SHRT_MAX", _SC_SHRT_MAX, SYSCONF },
 197 #endif
 198 #ifdef _SC_SHRT_MIN
 199     { "SHRT_MIN", _SC_SHRT_MIN, SYSCONF },
 200 #endif
 201 #ifdef _SC_SSIZE_MAX
 202     { "SSIZE_MAX", _SC_SSIZE_MAX, SYSCONF },
 203 #endif
 204 #ifdef _SC_TTY_NAME_MAX
 205     { "TTY_NAME_MAX", _SC_TTY_NAME_MAX, SYSCONF },
 206 #endif
 207 #ifdef _SC_TZNAME_MAX
 208     { "TZNAME_MAX", _SC_TZNAME_MAX, SYSCONF },
 209 #endif
 210 #ifdef _SC_UCHAR_MAX
 211     { "UCHAR_MAX", _SC_UCHAR_MAX, SYSCONF },
 212 #endif
 213 #ifdef _SC_UINT_MAX
 214     { "UINT_MAX", _SC_UINT_MAX, SYSCONF },
 215 #endif
 216 #ifdef _SC_UIO_MAXIOV
 217     { "UIO_MAXIOV", _SC_UIO_MAXIOV, SYSCONF },
 218 #endif
 219 #ifdef _SC_ULONG_MAX
 220     { "ULONG_MAX", _SC_ULONG_MAX, SYSCONF },
 221 #endif
 222 #ifdef _SC_USHRT_MAX
 223     { "USHRT_MAX", _SC_USHRT_MAX, SYSCONF },
 224 #endif
 225 #ifdef _SC_WORD_BIT
 226     { "WORD_BIT", _SC_WORD_BIT, SYSCONF },
 227 #endif
 228 #ifdef _SC_AVPHYS_PAGES
 229     { "_AVPHYS_PAGES", _SC_AVPHYS_PAGES, SYSCONF },
 230 #endif
 231 #ifdef _SC_NPROCESSORS_CONF
 232     { "_NPROCESSORS_CONF", _SC_NPROCESSORS_CONF, SYSCONF },
 233 #endif
 234 #ifdef _SC_NPROCESSORS_ONLN
 235     { "_NPROCESSORS_ONLN", _SC_NPROCESSORS_ONLN, SYSCONF },
 236 #endif
 237 #ifdef _SC_PHYS_PAGES
 238     { "_PHYS_PAGES", _SC_PHYS_PAGES, SYSCONF },
 239 #endif
 240 #ifdef _SC_ARG_MAX
 241     { "_POSIX_ARG_MAX", _SC_ARG_MAX, SYSCONF },
 242 #endif
 243 #ifdef _SC_ASYNCHRONOUS_IO
 244     { "_POSIX_ASYNCHRONOUS_IO", _SC_ASYNCHRONOUS_IO, SYSCONF },
 245 #endif
 246 #ifdef _SC_CHILD_MAX
 247     { "_POSIX_CHILD_MAX", _SC_CHILD_MAX, SYSCONF },
 248 #endif
 249 #ifdef _SC_FSYNC
 250     { "_POSIX_FSYNC", _SC_FSYNC, SYSCONF },
 251 #endif
 252 #ifdef _SC_JOB_CONTROL
 253     { "_POSIX_JOB_CONTROL", _SC_JOB_CONTROL, SYSCONF },
 254 #endif
 255 #ifdef _SC_MAPPED_FILES
 256     { "_POSIX_MAPPED_FILES", _SC_MAPPED_FILES, SYSCONF },
 257 #endif
 258 #ifdef _SC_MEMLOCK
 259     { "_POSIX_MEMLOCK", _SC_MEMLOCK, SYSCONF },
 260 #endif
 261 #ifdef _SC_MEMLOCK_RANGE
 262     { "_POSIX_MEMLOCK_RANGE", _SC_MEMLOCK_RANGE, SYSCONF },
 263 #endif
 264 #ifdef _SC_MEMORY_PROTECTION
 265     { "_POSIX_MEMORY_PROTECTION", _SC_MEMORY_PROTECTION, SYSCONF },
 266 #endif
 267 #ifdef _SC_MESSAGE_PASSING
 268     { "_POSIX_MESSAGE_PASSING", _SC_MESSAGE_PASSING, SYSCONF },
 269 #endif
 270 #ifdef _SC_NGROUPS_MAX
 271     { "_POSIX_NGROUPS_MAX", _SC_NGROUPS_MAX, SYSCONF },
 272 #endif
 273 #ifdef _SC_OPEN_MAX
 274     { "_POSIX_OPEN_MAX", _SC_OPEN_MAX, SYSCONF },
 275 #endif
 276 #ifdef _SC_PII
 277     { "_POSIX_PII", _SC_PII, SYSCONF },
 278 #endif
 279 #ifdef _SC_PII_INTERNET
 280     { "_POSIX_PII_INTERNET", _SC_PII_INTERNET, SYSCONF },
 281 #endif
 282 #ifdef _SC_PII_INTERNET_DGRAM
 283     { "_POSIX_PII_INTERNET_DGRAM", _SC_PII_INTERNET_DGRAM, SYSCONF },
 284 #endif
 285 #ifdef _SC_PII_INTERNET_STREAM
 286     { "_POSIX_PII_INTERNET_STREAM", _SC_PII_INTERNET_STREAM, SYSCONF },
 287 #endif
 288 #ifdef _SC_PII_OSI
 289     { "_POSIX_PII_OSI", _SC_PII_OSI, SYSCONF },
 290 #endif
 291 #ifdef _SC_PII_OSI_CLTS
 292     { "_POSIX_PII_OSI_CLTS", _SC_PII_OSI_CLTS, SYSCONF },
 293 #endif
 294 #ifdef _SC_PII_OSI_COTS
 295     { "_POSIX_PII_OSI_COTS", _SC_PII_OSI_COTS, SYSCONF },
 296 #endif
 297 #ifdef _SC_PII_OSI_M
 298     { "_POSIX_PII_OSI_M", _SC_PII_OSI_M, SYSCONF },
 299 #endif
 300 #ifdef _SC_PII_SOCKET
 301     { "_POSIX_PII_SOCKET", _SC_PII_SOCKET, SYSCONF },
 302 #endif
 303 #ifdef _SC_PII_XTI
 304     { "_POSIX_PII_XTI", _SC_PII_XTI, SYSCONF },
 305 #endif
 306 #ifdef _SC_POLL
 307     { "_POSIX_POLL", _SC_POLL, SYSCONF },
 308 #endif
 309 #ifdef _SC_PRIORITIZED_IO
 310     { "_POSIX_PRIORITIZED_IO", _SC_PRIORITIZED_IO, SYSCONF },
 311 #endif
 312 #ifdef _SC_PRIORITY_SCHEDULING
 313     { "_POSIX_PRIORITY_SCHEDULING", _SC_PRIORITY_SCHEDULING, SYSCONF },
 314 #endif
 315 #ifdef _SC_REALTIME_SIGNALS
 316     { "_POSIX_REALTIME_SIGNALS", _SC_REALTIME_SIGNALS, SYSCONF },
 317 #endif
 318 #ifdef _SC_SAVED_IDS
 319     { "_POSIX_SAVED_IDS", _SC_SAVED_IDS, SYSCONF },
 320 #endif
 321 #ifdef _SC_SELECT
 322     { "_POSIX_SELECT", _SC_SELECT, SYSCONF },
 323 #endif
 324 #ifdef _SC_SEMAPHORES
 325     { "_POSIX_SEMAPHORES", _SC_SEMAPHORES, SYSCONF },
 326 #endif
 327 #ifdef _SC_SHARED_MEMORY_OBJECTS
 328     { "_POSIX_SHARED_MEMORY_OBJECTS", _SC_SHARED_MEMORY_OBJECTS, SYSCONF },
 329 #endif
 330 #ifdef _SC_SSIZE_MAX
 331     { "_POSIX_SSIZE_MAX", _SC_SSIZE_MAX, SYSCONF },
 332 #endif
 333 #ifdef _SC_STREAM_MAX
 334     { "_POSIX_STREAM_MAX", _SC_STREAM_MAX, SYSCONF },
 335 #endif
 336 #ifdef _SC_SYNCHRONIZED_IO
 337     { "_POSIX_SYNCHRONIZED_IO", _SC_SYNCHRONIZED_IO, SYSCONF },
 338 #endif
 339 #ifdef _SC_THREADS
 340     { "_POSIX_THREADS", _SC_THREADS, SYSCONF },
 341 #endif
 342 #ifdef _SC_THREAD_ATTR_STACKADDR
 343     { "_POSIX_THREAD_ATTR_STACKADDR", _SC_THREAD_ATTR_STACKADDR, SYSCONF },
 344 #endif
 345 #ifdef _SC_THREAD_ATTR_STACKSIZE
 346     { "_POSIX_THREAD_ATTR_STACKSIZE", _SC_THREAD_ATTR_STACKSIZE, SYSCONF },
 347 #endif
 348 #ifdef _SC_THREAD_PRIORITY_SCHEDULING
 349     { "_POSIX_THREAD_PRIORITY_SCHEDULING", _SC_THREAD_PRIORITY_SCHEDULING, SYSCONF },
 350 #endif
 351 #ifdef _SC_THREAD_PRIO_INHERIT
 352     { "_POSIX_THREAD_PRIO_INHERIT", _SC_THREAD_PRIO_INHERIT, SYSCONF },
 353 #endif
 354 #ifdef _SC_THREAD_PRIO_PROTECT
 355     { "_POSIX_THREAD_PRIO_PROTECT", _SC_THREAD_PRIO_PROTECT, SYSCONF },
 356 #endif
 357 #ifdef _SC_THREAD_ROBUST_PRIO_INHERIT
 358     { "_POSIX_THREAD_ROBUST_PRIO_INHERIT", _SC_THREAD_ROBUST_PRIO_INHERIT,
 359       SYSCONF },
 360 #endif
 361 #ifdef _SC_THREAD_ROBUST_PRIO_PROTECT
 362     { "_POSIX_THREAD_ROBUST_PRIO_PROTECT", _SC_THREAD_ROBUST_PRIO_PROTECT,
 363       SYSCONF },
 364 #endif
 365 #ifdef _SC_THREAD_PROCESS_SHARED
 366     { "_POSIX_THREAD_PROCESS_SHARED", _SC_THREAD_PROCESS_SHARED, SYSCONF },
 367 #endif
 368 #ifdef _SC_THREAD_SAFE_FUNCTIONS
 369     { "_POSIX_THREAD_SAFE_FUNCTIONS", _SC_THREAD_SAFE_FUNCTIONS, SYSCONF },
 370 #endif
 371 #ifdef _SC_TIMERS
 372     { "_POSIX_TIMERS", _SC_TIMERS, SYSCONF },
 373 #endif
 374 #ifdef _SC_TIMER_MAX
 375     { "TIMER_MAX", _SC_TIMER_MAX, SYSCONF },
 376 #endif
 377 #ifdef _SC_TZNAME_MAX
 378     { "_POSIX_TZNAME_MAX", _SC_TZNAME_MAX, SYSCONF },
 379 #endif
 380 #ifdef _SC_VERSION
 381     { "_POSIX_VERSION", _SC_VERSION, SYSCONF },
 382 #endif
 383 #ifdef _SC_T_IOV_MAX
 384     { "_T_IOV_MAX", _SC_T_IOV_MAX, SYSCONF },
 385 #endif
 386 #ifdef _SC_XOPEN_CRYPT
 387     { "_XOPEN_CRYPT", _SC_XOPEN_CRYPT, SYSCONF },
 388 #endif
 389 #ifdef _SC_XOPEN_ENH_I18N
 390     { "_XOPEN_ENH_I18N", _SC_XOPEN_ENH_I18N, SYSCONF },
 391 #endif
 392 #ifdef _SC_XOPEN_LEGACY
 393     { "_XOPEN_LEGACY", _SC_XOPEN_LEGACY, SYSCONF },
 394 #endif
 395 #ifdef _SC_XOPEN_REALTIME
 396     { "_XOPEN_REALTIME", _SC_XOPEN_REALTIME, SYSCONF },
 397 #endif
 398 #ifdef _SC_XOPEN_REALTIME_THREADS
 399     { "_XOPEN_REALTIME_THREADS", _SC_XOPEN_REALTIME_THREADS, SYSCONF },
 400 #endif
 401 #ifdef _SC_XOPEN_SHM
 402     { "_XOPEN_SHM", _SC_XOPEN_SHM, SYSCONF },
 403 #endif
 404 #ifdef _SC_XOPEN_UNIX
 405     { "_XOPEN_UNIX", _SC_XOPEN_UNIX, SYSCONF },
 406 #endif
 407 #ifdef _SC_XOPEN_VERSION
 408     { "_XOPEN_VERSION", _SC_XOPEN_VERSION, SYSCONF },
 409 #endif
 410 #ifdef _SC_XOPEN_XCU_VERSION
 411     { "_XOPEN_XCU_VERSION", _SC_XOPEN_XCU_VERSION, SYSCONF },
 412 #endif
 413 #ifdef _SC_XOPEN_XPG2
 414     { "_XOPEN_XPG2", _SC_XOPEN_XPG2, SYSCONF },
 415 #endif
 416 #ifdef _SC_XOPEN_XPG3
 417     { "_XOPEN_XPG3", _SC_XOPEN_XPG3, SYSCONF },
 418 #endif
 419 #ifdef _SC_XOPEN_XPG4
 420     { "_XOPEN_XPG4", _SC_XOPEN_XPG4, SYSCONF },
 421 #endif
 422     /* POSIX.2  */
 423 #ifdef _SC_BC_BASE_MAX
 424     { "BC_BASE_MAX", _SC_BC_BASE_MAX, SYSCONF },
 425 #endif
 426 #ifdef _SC_BC_DIM_MAX
 427     { "BC_DIM_MAX", _SC_BC_DIM_MAX, SYSCONF },
 428 #endif
 429 #ifdef _SC_BC_SCALE_MAX
 430     { "BC_SCALE_MAX", _SC_BC_SCALE_MAX, SYSCONF },
 431 #endif
 432 #ifdef _SC_BC_STRING_MAX
 433     { "BC_STRING_MAX", _SC_BC_STRING_MAX, SYSCONF },
 434 #endif
 435     { "CHARCLASS_NAME_MAX", _SC_CHARCLASS_NAME_MAX, SYSCONF },
 436 #ifdef _SC_COLL_WEIGHTS_MAX
 437     { "COLL_WEIGHTS_MAX", _SC_COLL_WEIGHTS_MAX, SYSCONF },
 438 #endif
 439 #ifdef _SC_EQUIV_CLASS_MAX
 440     { "EQUIV_CLASS_MAX", _SC_EQUIV_CLASS_MAX, SYSCONF },
 441 #endif
 442 #ifdef _SC_EXPR_NEST_MAX
 443     { "EXPR_NEST_MAX", _SC_EXPR_NEST_MAX, SYSCONF },
 444 #endif
 445 #ifdef _SC_LINE_MAX
 446     { "LINE_MAX", _SC_LINE_MAX, SYSCONF },
 447 #endif
 448 #ifdef _SC_BC_BASE_MAX
 449     { "POSIX2_BC_BASE_MAX", _SC_BC_BASE_MAX, SYSCONF },
 450 #endif
 451 #ifdef _SC_BC_DIM_MAX
 452     { "POSIX2_BC_DIM_MAX", _SC_BC_DIM_MAX, SYSCONF },
 453 #endif
 454 #ifdef _SC_BC_SCALE_MAX
 455     { "POSIX2_BC_SCALE_MAX", _SC_BC_SCALE_MAX, SYSCONF },
 456 #endif
 457 #ifdef _SC_BC_STRING_MAX
 458     { "POSIX2_BC_STRING_MAX", _SC_BC_STRING_MAX, SYSCONF },
 459 #endif
 460 #ifdef _SC_2_CHAR_TERM
 461     { "POSIX2_CHAR_TERM", _SC_2_CHAR_TERM, SYSCONF },
 462 #endif
 463 #ifdef _SC_COLL_WEIGHTS_MAX
 464     { "POSIX2_COLL_WEIGHTS_MAX", _SC_COLL_WEIGHTS_MAX, SYSCONF },
 465 #endif
 466 #ifdef _SC_2_C_BIND
 467     { "POSIX2_C_BIND", _SC_2_C_BIND, SYSCONF },
 468 #endif
 469 #ifdef _SC_2_C_DEV
 470     { "POSIX2_C_DEV", _SC_2_C_DEV, SYSCONF },
 471 #endif
 472 #ifdef _SC_2_C_VERSION
 473     { "POSIX2_C_VERSION", _SC_2_C_VERSION, SYSCONF },
 474 #endif
 475 #ifdef _SC_EXPR_NEST_MAX
 476     { "POSIX2_EXPR_NEST_MAX", _SC_EXPR_NEST_MAX, SYSCONF },
 477 #endif
 478 #ifdef _SC_2_FORT_DEV
 479     { "POSIX2_FORT_DEV", _SC_2_FORT_DEV, SYSCONF },
 480 #endif
 481 #ifdef _SC_2_FORT_RUN
 482     { "POSIX2_FORT_RUN", _SC_2_FORT_RUN, SYSCONF },
 483 #endif
 484 #ifdef _SC_LINE_MAX
 485     { "_POSIX2_LINE_MAX", _SC_LINE_MAX, SYSCONF },
 486     { "POSIX2_LINE_MAX", _SC_LINE_MAX, SYSCONF },
 487 #endif
 488 #ifdef _SC_2_LOCALEDEF
 489     { "POSIX2_LOCALEDEF", _SC_2_LOCALEDEF, SYSCONF },
 490 #endif
 491 #ifdef _SC_RE_DUP_MAX
 492     { "POSIX2_RE_DUP_MAX", _SC_RE_DUP_MAX, SYSCONF },
 493 #endif
 494 #ifdef _SC_2_SW_DEV
 495     { "POSIX2_SW_DEV", _SC_2_SW_DEV, SYSCONF },
 496 #endif
 497 #ifdef _SC_2_UPE
 498     { "POSIX2_UPE", _SC_2_UPE, SYSCONF },
 499 #endif
 500 #ifdef _SC_2_VERSION
 501     { "POSIX2_VERSION", _SC_2_VERSION, SYSCONF },
 502 #endif
 503 #ifdef _SC_RE_DUP_MAX
 504     { "RE_DUP_MAX", _SC_RE_DUP_MAX, SYSCONF },
 505 #endif
 506
 507 #ifdef _CS_PATH
 508     { "PATH", _CS_PATH, CONFSTR },
 509     { "CS_PATH", _CS_PATH, CONFSTR },
 510 #endif
 511
 512     /* LFS */
 513 #ifdef _CS_LFS_CFLAGS
 514     { "LFS_CFLAGS", _CS_LFS_CFLAGS, CONFSTR },
 515 #endif
 516 #ifdef _CS_LFS_LDFLAGS
 517     { "LFS_LDFLAGS", _CS_LFS_LDFLAGS, CONFSTR },
 518 #endif
 519 #ifdef _CS_LFS_LIBS
 520     { "LFS_LIBS", _CS_LFS_LIBS, CONFSTR },
 521 #endif
 522 #ifdef _CS_LFS_LINTFLAGS
 523     { "LFS_LINTFLAGS", _CS_LFS_LINTFLAGS, CONFSTR },
 524 #endif
 525 #ifdef _CS_LFS64_CFLAGS
 526     { "LFS64_CFLAGS", _CS_LFS64_CFLAGS, CONFSTR },
 527 #endif
 528 #ifdef _CS_LFS64_LDFLAGS
 529     { "LFS64_LDFLAGS", _CS_LFS64_LDFLAGS, CONFSTR },
 530 #endif
 531 #ifdef _CS_LFS64_LIBS
 532     { "LFS64_LIBS", _CS_LFS64_LIBS, CONFSTR },
 533 #endif
 534 #ifdef _CS_LFS64_LINTFLAGS
 535     { "LFS64_LINTFLAGS", _CS_LFS64_LINTFLAGS, CONFSTR },
 536 #endif
 537
 538     /* Programming environments.  */
 539 #ifdef _CS_V5_WIDTH_RESTRICTED_ENVS
 540     { "_XBS5_WIDTH_RESTRICTED_ENVS", _CS_V5_WIDTH_RESTRICTED_ENVS, CONFSTR },
 541     { "XBS5_WIDTH_RESTRICTED_ENVS", _CS_V5_WIDTH_RESTRICTED_ENVS, CONFSTR },
 542 #endif
 543
 544 #ifdef _SC_XBS5_ILP32_OFF32
 545     { "_XBS5_ILP32_OFF32", _SC_XBS5_ILP32_OFF32, SYSCONF },
 546 #endif
 547 #ifdef _CS_XBS5_ILP32_OFF32_CFLAGS
 548     { "XBS5_ILP32_OFF32_CFLAGS", _CS_XBS5_ILP32_OFF32_CFLAGS, CONFSTR },
 549 #endif
 550 #ifdef _CS_XBS5_ILP32_OFF32_LDFLAGS
 551     { "XBS5_ILP32_OFF32_LDFLAGS", _CS_XBS5_ILP32_OFF32_LDFLAGS, CONFSTR },
 552 #endif
 553 #ifdef _CS_XBS5_ILP32_OFF32_LIBS
 554     { "XBS5_ILP32_OFF32_LIBS", _CS_XBS5_ILP32_OFF32_LIBS, CONFSTR },
 555 #endif
 556 #ifdef _CS_XBS5_ILP32_OFF32_LINTFLAGS
 557     { "XBS5_ILP32_OFF32_LINTFLAGS", _CS_XBS5_ILP32_OFF32_LINTFLAGS, CONFSTR },
 558 #endif
 559
 560 #ifdef _SC_XBS5_ILP32_OFFBIG
 561     { "_XBS5_ILP32_OFFBIG", _SC_XBS5_ILP32_OFFBIG, SYSCONF },
 562 #endif
 563 #ifdef _CS_XBS5_ILP32_OFFBIG_CFLAGS
 564     { "XBS5_ILP32_OFFBIG_CFLAGS", _CS_XBS5_ILP32_OFFBIG_CFLAGS, CONFSTR },
 565 #endif
 566 #ifdef _CS_XBS5_ILP32_OFFBIG_LDFLAGS
 567     { "XBS5_ILP32_OFFBIG_LDFLAGS", _CS_XBS5_ILP32_OFFBIG_LDFLAGS, CONFSTR },
 568 #endif
 569 #ifdef _CS_XBS5_ILP32_OFFBIG_LIBS
 570     { "XBS5_ILP32_OFFBIG_LIBS", _CS_XBS5_ILP32_OFFBIG_LIBS, CONFSTR },
 571 #endif
 572 #ifdef _CS_XBS5_ILP32_OFFBIG_LINTFLAGS
 573     { "XBS5_ILP32_OFFBIG_LINTFLAGS", _CS_XBS5_ILP32_OFFBIG_LINTFLAGS, CONFSTR },
 574 #endif
 575
 576 #ifdef _SC_XBS5_LP64_OFF64
 577     { "_XBS5_LP64_OFF64", _SC_XBS5_LP64_OFF64, SYSCONF },
 578 #endif
 579 #ifdef _CS_XBS5_LP64_OFF64_CFLAGS
 580     { "XBS5_LP64_OFF64_CFLAGS", _CS_XBS5_LP64_OFF64_CFLAGS, CONFSTR },
 581 #endif
 582 #ifdef _CS_XBS5_LP64_OFF64_LDFLAGS
 583     { "XBS5_LP64_OFF64_LDFLAGS", _CS_XBS5_LP64_OFF64_LDFLAGS, CONFSTR },
 584 #endif
 585 #ifdef _CS_XBS5_LP64_OFF64_LIBS
 586     { "XBS5_LP64_OFF64_LIBS", _CS_XBS5_LP64_OFF64_LIBS, CONFSTR },
 587 #endif
 588 #ifdef _CS_XBS5_LP64_OFF64_LINTFLAGS
 589     { "XBS5_LP64_OFF64_LINTFLAGS", _CS_XBS5_LP64_OFF64_LINTFLAGS, CONFSTR },
 590 #endif
 591
 592 #ifdef _SC_XBS5_LPBIG_OFFBIG
 593     { "_XBS5_LPBIG_OFFBIG", _SC_XBS5_LPBIG_OFFBIG, SYSCONF },
 594 #endif
 595 #ifdef _CS_XBS5_LPBIG_OFFBIG_CFLAGS
 596     { "XBS5_LPBIG_OFFBIG_CFLAGS", _CS_XBS5_LPBIG_OFFBIG_CFLAGS, CONFSTR },
 597 #endif
 598 #ifdef _CS_XBS5_LPBIG_OFFBIG_LDFLAGS
 599     { "XBS5_LPBIG_OFFBIG_LDFLAGS", _CS_XBS5_LPBIG_OFFBIG_LDFLAGS, CONFSTR },
 600 #endif
 601 #ifdef _CS_XBS5_LPBIG_OFFBIG_LIBS
 602     { "XBS5_LPBIG_OFFBIG_LIBS", _CS_XBS5_LPBIG_OFFBIG_LIBS, CONFSTR },
 603 #endif
 604 #ifdef _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS
 605     { "XBS5_LPBIG_OFFBIG_LINTFLAGS", _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS, CONFSTR },
 606 #endif
 607
 608 #ifdef _SC_V6_ILP32_OFF32
 609     { "_POSIX_V6_ILP32_OFF32", _SC_V6_ILP32_OFF32, SYSCONF },
 610 #endif
 611 #ifdef _CS_POSIX_V6_ILP32_OFF32_CFLAGS
 612     { "POSIX_V6_ILP32_OFF32_CFLAGS", _CS_POSIX_V6_ILP32_OFF32_CFLAGS, CONFSTR },
 613 #endif
 614 #ifdef _CS_POSIX_V6_ILP32_OFF32_LDFLAGS
 615     { "POSIX_V6_ILP32_OFF32_LDFLAGS", _CS_POSIX_V6_ILP32_OFF32_LDFLAGS, CONFSTR },
 616 #endif
 617 #ifdef _CS_POSIX_V6_ILP32_OFF32_LIBS
 618     { "POSIX_V6_ILP32_OFF32_LIBS", _CS_POSIX_V6_ILP32_OFF32_LIBS, CONFSTR },
 619 #endif
 620 #ifdef _CS_POSIX_V6_ILP32_OFF32_LINTFLAGS
 621     { "POSIX_V6_ILP32_OFF32_LINTFLAGS", _CS_POSIX_V6_ILP32_OFF32_LINTFLAGS, CONFSTR },
 622 #endif
 623
 624 #ifdef _CS_V6_WIDTH_RESTRICTED_ENVS
 625     { "_POSIX_V6_WIDTH_RESTRICTED_ENVS", _CS_V6_WIDTH_RESTRICTED_ENVS, CONFSTR },
 626     { "POSIX_V6_WIDTH_RESTRICTED_ENVS", _CS_V6_WIDTH_RESTRICTED_ENVS, CONFSTR },
 627 #endif
 628
 629 #ifdef _SC_V6_ILP32_OFFBIG
 630     { "_POSIX_V6_ILP32_OFFBIG", _SC_V6_ILP32_OFFBIG, SYSCONF },
 631 #endif
 632 #ifdef _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS
 633     { "POSIX_V6_ILP32_OFFBIG_CFLAGS", _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS, CONFSTR },
 634 #endif
 635 #ifdef _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS
 636     { "POSIX_V6_ILP32_OFFBIG_LDFLAGS", _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS, CONFSTR },
 637 #endif
 638 #ifdef _CS_POSIX_V6_ILP32_OFFBIG_LIBS
 639     { "POSIX_V6_ILP32_OFFBIG_LIBS", _CS_POSIX_V6_ILP32_OFFBIG_LIBS, CONFSTR },
 640 #endif
 641 #ifdef _CS_POSIX_V6_ILP32_OFFBIG_LINTFLAGS
 642     { "POSIX_V6_ILP32_OFFBIG_LINTFLAGS", _CS_POSIX_V6_ILP32_OFFBIG_LINTFLAGS, CONFSTR },
 643 #endif
 644
 645 #ifdef _SC_V6_LP64_OFF64
 646     { "_POSIX_V6_LP64_OFF64", _SC_V6_LP64_OFF64, SYSCONF },
 647 #endif
 648 #ifdef _CS_POSIX_V6_LP64_OFF64_CFLAGS
 649     { "POSIX_V6_LP64_OFF64_CFLAGS", _CS_POSIX_V6_LP64_OFF64_CFLAGS, CONFSTR },
 650 #endif
 651 #ifdef _CS_POSIX_V6_LP64_OFF64_LDFLAGS
 652     { "POSIX_V6_LP64_OFF64_LDFLAGS", _CS_POSIX_V6_LP64_OFF64_LDFLAGS, CONFSTR },
 653 #endif
 654 #ifdef _CS_POSIX_V6_LP64_OFF64_LIBS
 655     { "POSIX_V6_LP64_OFF64_LIBS", _CS_POSIX_V6_LP64_OFF64_LIBS, CONFSTR },
 656 #endif
 657 #ifdef _CS_POSIX_V6_LP64_OFF64_LINTFLAGS
 658     { "POSIX_V6_LP64_OFF64_LINTFLAGS", _CS_POSIX_V6_LP64_OFF64_LINTFLAGS, CONFSTR },
 659 #endif
 660
 661 #ifdef _SC_V6_LPBIG_OFFBIG
 662     { "_POSIX_V6_LPBIG_OFFBIG", _SC_V6_LPBIG_OFFBIG, SYSCONF },
 663 #endif
 664 #ifdef _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS
 665     { "POSIX_V6_LPBIG_OFFBIG_CFLAGS", _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS, CONFSTR },
 666 #endif
 667 #ifdef _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS
 668     { "POSIX_V6_LPBIG_OFFBIG_LDFLAGS", _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS, CONFSTR },
 669 #endif
 670 #ifdef _CS_POSIX_V6_LPBIG_OFFBIG_LIBS
 671     { "POSIX_V6_LPBIG_OFFBIG_LIBS", _CS_POSIX_V6_LPBIG_OFFBIG_LIBS, CONFSTR },
 672 #endif
 673 #ifdef _CS_POSIX_V6_LPBIG_OFFBIG_LINTFLAGS
 674     { "POSIX_V6_LPBIG_OFFBIG_LINTFLAGS", _CS_POSIX_V6_LPBIG_OFFBIG_LINTFLAGS, CONFSTR },
 675 #endif
 676
 677 #ifdef _SC_V7_ILP32_OFF32
 678     { "_POSIX_V7_ILP32_OFF32", _SC_V7_ILP32_OFF32, SYSCONF },
 679 #endif
 680 #ifdef _CS_POSIX_V7_ILP32_OFF32_CFLAGS
 681     { "POSIX_V7_ILP32_OFF32_CFLAGS", _CS_POSIX_V7_ILP32_OFF32_CFLAGS, CONFSTR },
 682 #endif
 683 #ifdef _CS_POSIX_V7_ILP32_OFF32_LDFLAGS
 684     { "POSIX_V7_ILP32_OFF32_LDFLAGS", _CS_POSIX_V7_ILP32_OFF32_LDFLAGS, CONFSTR },
 685 #endif
 686 #ifdef _CS_POSIX_V7_ILP32_OFF32_LIBS
 687     { "POSIX_V7_ILP32_OFF32_LIBS", _CS_POSIX_V7_ILP32_OFF32_LIBS, CONFSTR },
 688 #endif
 689 #ifdef _CS_POSIX_V7_ILP32_OFF32_LINTFLAGS
 690     { "POSIX_V7_ILP32_OFF32_LINTFLAGS", _CS_POSIX_V7_ILP32_OFF32_LINTFLAGS, CONFSTR },
 691 #endif
 692
 693 #ifdef _CS_V7_WIDTH_RESTRICTED_ENVS
 694     { "_POSIX_V7_WIDTH_RESTRICTED_ENVS", _CS_V7_WIDTH_RESTRICTED_ENVS, CONFSTR },
 695     { "POSIX_V7_WIDTH_RESTRICTED_ENVS", _CS_V7_WIDTH_RESTRICTED_ENVS, CONFSTR },
 696 #endif
 697
 698 #ifdef _SC_V7_ILP32_OFFBIG
 699     { "_POSIX_V7_ILP32_OFFBIG", _SC_V7_ILP32_OFFBIG, SYSCONF },
 700 #endif
 701 #ifdef _CS_POSIX_V7_ILP32_OFFBIG_CFLAGS
 702     { "POSIX_V7_ILP32_OFFBIG_CFLAGS", _CS_POSIX_V7_ILP32_OFFBIG_CFLAGS, CONFSTR },
 703 #endif
 704 #ifdef _CS_POSIX_V7_ILP32_OFFBIG_LDFLAGS
 705     { "POSIX_V7_ILP32_OFFBIG_LDFLAGS", _CS_POSIX_V7_ILP32_OFFBIG_LDFLAGS, CONFSTR },
 706 #endif
 707 #ifdef _CS_POSIX_V7_ILP32_OFFBIG_LIBS
 708     { "POSIX_V7_ILP32_OFFBIG_LIBS", _CS_POSIX_V7_ILP32_OFFBIG_LIBS, CONFSTR },
 709 #endif
 710 #ifdef _CS_POSIX_V7_ILP32_OFFBIG_LINTFLAGS
 711     { "POSIX_V7_ILP32_OFFBIG_LINTFLAGS", _CS_POSIX_V7_ILP32_OFFBIG_LINTFLAGS, CONFSTR },
 712 #endif
 713
 714 #ifdef _SC_V7_LP64_OFF64
 715     { "_POSIX_V7_LP64_OFF64", _SC_V7_LP64_OFF64, SYSCONF },
 716 #endif
 717 #ifdef _CS_POSIX_V7_LP64_OFF64_CFLAGS
 718     { "POSIX_V7_LP64_OFF64_CFLAGS", _CS_POSIX_V7_LP64_OFF64_CFLAGS, CONFSTR },
 719 #endif
 720 #ifdef _CS_POSIX_V7_LP64_OFF64_LDFLAGS
 721     { "POSIX_V7_LP64_OFF64_LDFLAGS", _CS_POSIX_V7_LP64_OFF64_LDFLAGS, CONFSTR },
 722 #endif
 723 #ifdef _CS_POSIX_V7_LP64_OFF64_LIBS
 724     { "POSIX_V7_LP64_OFF64_LIBS", _CS_POSIX_V7_LP64_OFF64_LIBS, CONFSTR },
 725 #endif
 726 #ifdef _CS_POSIX_V7_LP64_OFF64_LINTFLAGS
 727     { "POSIX_V7_LP64_OFF64_LINTFLAGS", _CS_POSIX_V7_LP64_OFF64_LINTFLAGS, CONFSTR },
 728 #endif
 729
 730 #ifdef _SC_V7_LPBIG_OFFBIG
 731     { "_POSIX_V7_LPBIG_OFFBIG", _SC_V7_LPBIG_OFFBIG, SYSCONF },
 732 #endif
 733 #ifdef _CS_POSIX_V7_LPBIG_OFFBIG_CFLAGS
 734     { "POSIX_V7_LPBIG_OFFBIG_CFLAGS", _CS_POSIX_V7_LPBIG_OFFBIG_CFLAGS, CONFSTR },
 735 #endif
 736 #ifdef _CS_POSIX_V7_LPBIG_OFFBIG_LDFLAGS
 737     { "POSIX_V7_LPBIG_OFFBIG_LDFLAGS", _CS_POSIX_V7_LPBIG_OFFBIG_LDFLAGS, CONFSTR },
 738 #endif
 739 #ifdef _CS_POSIX_V7_LPBIG_OFFBIG_LIBS
 740     { "POSIX_V7_LPBIG_OFFBIG_LIBS", _CS_POSIX_V7_LPBIG_OFFBIG_LIBS, CONFSTR },
 741 #endif
 742 #ifdef _CS_POSIX_V7_LPBIG_OFFBIG_LINTFLAGS
 743     { "POSIX_V7_LPBIG_OFFBIG_LINTFLAGS", _CS_POSIX_V7_LPBIG_OFFBIG_LINTFLAGS, CONFSTR },
 744 #endif
 745
 746 #ifdef _SC_ADVISORY_INFO
 747     { "_POSIX_ADVISORY_INFO", _SC_ADVISORY_INFO, SYSCONF },
 748 #endif
 749 #ifdef _SC_BARRIERS
 750     { "_POSIX_BARRIERS", _SC_BARRIERS, SYSCONF },
 751 #endif
 752 #ifdef _SC_BASE
 753     { "_POSIX_BASE", _SC_BASE, SYSCONF },
 754 #endif
 755 #ifdef _SC_C_LANG_SUPPORT
 756     { "_POSIX_C_LANG_SUPPORT", _SC_C_LANG_SUPPORT, SYSCONF },
 757 #endif
 758 #ifdef _SC_C_LANG_SUPPORT_R
 759     { "_POSIX_C_LANG_SUPPORT_R", _SC_C_LANG_SUPPORT_R, SYSCONF },
 760 #endif
 761 #ifdef _SC_CLOCK_SELECTION
 762     { "_POSIX_CLOCK_SELECTION", _SC_CLOCK_SELECTION, SYSCONF },
 763 #endif
 764 #ifdef _SC_CPUTIME
 765     { "_POSIX_CPUTIME", _SC_CPUTIME, SYSCONF },
 766 #endif
 767 #ifdef _SC_THREAD_CPUTIME
 768     { "_POSIX_THREAD_CPUTIME", _SC_THREAD_CPUTIME, SYSCONF },
 769 #endif
 770 #ifdef _SC_DEVICE_SPECIFIC
 771     { "_POSIX_DEVICE_SPECIFIC", _SC_DEVICE_SPECIFIC, SYSCONF },
 772 #endif
 773 #ifdef _SC_DEVICE_SPECIFIC_R
 774     { "_POSIX_DEVICE_SPECIFIC_R", _SC_DEVICE_SPECIFIC_R, SYSCONF },
 775 #endif
 776 #ifdef _SC_FD_MGMT
 777     { "_POSIX_FD_MGMT", _SC_FD_MGMT, SYSCONF },
 778 #endif
 779 #ifdef _SC_FIFO
 780     { "_POSIX_FIFO", _SC_FIFO, SYSCONF },
 781 #endif
 782 #ifdef _SC_PIPE
 783     { "_POSIX_PIPE", _SC_PIPE, SYSCONF },
 784 #endif
 785 #ifdef _SC_FILE_ATTRIBUTES
 786     { "_POSIX_FILE_ATTRIBUTES", _SC_FILE_ATTRIBUTES, SYSCONF },
 787 #endif
 788 #ifdef _SC_FILE_LOCKING
 789     { "_POSIX_FILE_LOCKING", _SC_FILE_LOCKING, SYSCONF },
 790 #endif
 791 #ifdef _SC_FILE_SYSTEM
 792     { "_POSIX_FILE_SYSTEM", _SC_FILE_SYSTEM, SYSCONF },
 793 #endif
 794 #ifdef _SC_MONOTONIC_CLOCK
 795     { "_POSIX_MONOTONIC_CLOCK", _SC_MONOTONIC_CLOCK, SYSCONF },
 796 #endif
 797 #ifdef _SC_MULTI_PROCESS
 798     { "_POSIX_MULTI_PROCESS", _SC_MULTI_PROCESS, SYSCONF },
 799 #endif
 800 #ifdef _SC_SINGLE_PROCESS
 801     { "_POSIX_SINGLE_PROCESS", _SC_SINGLE_PROCESS, SYSCONF },
 802 #endif
 803 #ifdef _SC_NETWORKING
 804     { "_POSIX_NETWORKING", _SC_NETWORKING, SYSCONF },
 805 #endif
 806 #ifdef _SC_READER_WRITER_LOCKS
 807     { "_POSIX_READER_WRITER_LOCKS", _SC_READER_WRITER_LOCKS, SYSCONF },
 808 #endif
 809 #ifdef _SC_SPIN_LOCKS
 810     { "_POSIX_SPIN_LOCKS", _SC_SPIN_LOCKS, SYSCONF },
 811 #endif
 812 #ifdef _SC_REGEXP
 813     { "_POSIX_REGEXP", _SC_REGEXP, SYSCONF },
 814 #endif
 815 #ifdef _SC_REGEX_VERSION
 816     { "_REGEX_VERSION", _SC_REGEX_VERSION, SYSCONF },
 817 #endif
 818 #ifdef _SC_SHELL
 819     { "_POSIX_SHELL", _SC_SHELL, SYSCONF },
 820 #endif
 821 #ifdef _SC_SIGNALS
 822     { "_POSIX_SIGNALS", _SC_SIGNALS, SYSCONF },
 823 #endif
 824 #ifdef _SC_SPAWN
 825     { "_POSIX_SPAWN", _SC_SPAWN, SYSCONF },
 826 #endif
 827 #ifdef _SC_SPORADIC_SERVER
 828     { "_POSIX_SPORADIC_SERVER", _SC_SPORADIC_SERVER, SYSCONF },
 829 #endif
 830 #ifdef _SC_THREAD_SPORADIC_SERVER
 831     { "_POSIX_THREAD_SPORADIC_SERVER", _SC_THREAD_SPORADIC_SERVER, SYSCONF },
 832 #endif
 833 #ifdef _SC_SYSTEM_DATABASE
 834     { "_POSIX_SYSTEM_DATABASE", _SC_SYSTEM_DATABASE, SYSCONF },
 835 #endif
 836 #ifdef _SC_SYSTEM_DATABASE_R
 837     { "_POSIX_SYSTEM_DATABASE_R", _SC_SYSTEM_DATABASE_R, SYSCONF },
 838 #endif
 839 #ifdef _SC_TIMEOUTS
 840     { "_POSIX_TIMEOUTS", _SC_TIMEOUTS, SYSCONF },
 841 #endif
 842 #ifdef _SC_TYPED_MEMORY_OBJECTS
 843     { "_POSIX_TYPED_MEMORY_OBJECTS", _SC_TYPED_MEMORY_OBJECTS, SYSCONF },
 844 #endif
 845 #ifdef _SC_USER_GROUPS
 846     { "_POSIX_USER_GROUPS", _SC_USER_GROUPS, SYSCONF },
 847 #endif
 848 #ifdef _SC_USER_GROUPS_R
 849     { "_POSIX_USER_GROUPS_R", _SC_USER_GROUPS_R, SYSCONF },
 850 #endif
 851 #ifdef _SC_2_PBS
 852     { "POSIX2_PBS", _SC_2_PBS, SYSCONF },
 853 #endif
 854 #ifdef _SC_2_PBS_ACCOUNTING
 855     { "POSIX2_PBS_ACCOUNTING", _SC_2_PBS_ACCOUNTING, SYSCONF },
 856 #endif
 857 #ifdef _SC_2_PBS_LOCATE
 858     { "POSIX2_PBS_LOCATE", _SC_2_PBS_LOCATE, SYSCONF },
 859 #endif
 860 #ifdef _SC_2_PBS_TRACK
 861     { "POSIX2_PBS_TRACK", _SC_2_PBS_TRACK, SYSCONF },
 862 #endif
 863 #ifdef _SC_2_PBS_MESSAGE
 864     { "POSIX2_PBS_MESSAGE", _SC_2_PBS_MESSAGE, SYSCONF },
 865 #endif
 866 #ifdef _SC_SYMLOOP_MAX
 867     { "SYMLOOP_MAX", _SC_SYMLOOP_MAX, SYSCONF },
 868 #endif
 869 #ifdef _SC_STREAM_MAX
 870     { "STREAM_MAX", _SC_STREAM_MAX, SYSCONF },
 871 #endif
 872 #ifdef _SC_AIO_LISTIO_MAX
 873     { "AIO_LISTIO_MAX", _SC_AIO_LISTIO_MAX, SYSCONF },
 874 #endif
 875 #ifdef _SC_AIO_MAX
 876     { "AIO_MAX", _SC_AIO_MAX, SYSCONF },
 877 #endif
 878 #ifdef _SC_AIO_PRIO_DELTA_MAX
 879     { "AIO_PRIO_DELTA_MAX", _SC_AIO_PRIO_DELTA_MAX, SYSCONF },
 880 #endif
 881 #ifdef _SC_DELAYTIMER_MAX
 882     { "DELAYTIMER_MAX", _SC_DELAYTIMER_MAX, SYSCONF },
 883 #endif
 884 #ifdef _SC_HOST_NAME_MAX
 885     { "HOST_NAME_MAX", _SC_HOST_NAME_MAX, SYSCONF },
 886 #endif
 887 #ifdef _SC_LOGIN_NAME_MAX
 888     { "LOGIN_NAME_MAX", _SC_LOGIN_NAME_MAX, SYSCONF },
 889 #endif
 890 #ifdef _SC_MQ_OPEN_MAX
 891     { "MQ_OPEN_MAX", _SC_MQ_OPEN_MAX, SYSCONF },
 892 #endif
 893 #ifdef _SC_MQ_PRIO_MAX
 894     { "MQ_PRIO_MAX", _SC_MQ_PRIO_MAX, SYSCONF },
 895 #endif
 896 #ifdef _SC_DEVICE_IO
 897     { "_POSIX_DEVICE_IO", _SC_DEVICE_IO, SYSCONF },
 898 #endif
 899 #ifdef _SC_TRACE
 900     { "_POSIX_TRACE", _SC_TRACE, SYSCONF },
 901 #endif
 902 #ifdef _SC_TRACE_EVENT_FILTER
 903     { "_POSIX_TRACE_EVENT_FILTER", _SC_TRACE_EVENT_FILTER, SYSCONF },
 904 #endif
 905 #ifdef _SC_TRACE_INHERIT
 906     { "_POSIX_TRACE_INHERIT", _SC_TRACE_INHERIT, SYSCONF },
 907 #endif
 908 #ifdef _SC_TRACE_LOG
 909     { "_POSIX_TRACE_LOG", _SC_TRACE_LOG, SYSCONF },
 910 #endif
 911 #ifdef _SC_RTSIG_MAX
 912     { "RTSIG_MAX", _SC_RTSIG_MAX, SYSCONF },
 913 #endif
 914 #ifdef _SC_SEM_NSEMS_MAX
 915     { "SEM_NSEMS_MAX", _SC_SEM_NSEMS_MAX, SYSCONF },
 916 #endif
 917 #ifdef _SC_SEM_VALUE_MAX
 918     { "SEM_VALUE_MAX", _SC_SEM_VALUE_MAX, SYSCONF },
 919 #endif
 920 #ifdef _SC_SIGQUEUE_MAX
 921     { "SIGQUEUE_MAX", _SC_SIGQUEUE_MAX, SYSCONF },
 922 #endif
 923 #ifdef _PC_FILESIZEBITS
 924     { "FILESIZEBITS", _PC_FILESIZEBITS, PATHCONF },
 925 #endif
 926 #ifdef _PC_ALLOC_SIZE_MIN
 927     { "POSIX_ALLOC_SIZE_MIN", _PC_ALLOC_SIZE_MIN, PATHCONF },
 928 #endif
 929 #ifdef _PC_REC_INCR_XFER_SIZE
 930     { "POSIX_REC_INCR_XFER_SIZE", _PC_REC_INCR_XFER_SIZE, PATHCONF },
 931 #endif
 932 #ifdef _PC_REC_MAX_XFER_SIZE
 933     { "POSIX_REC_MAX_XFER_SIZE", _PC_REC_MAX_XFER_SIZE, PATHCONF },
 934 #endif
 935 #ifdef _PC_REC_MIN_XFER_SIZE
 936     { "POSIX_REC_MIN_XFER_SIZE", _PC_REC_MIN_XFER_SIZE, PATHCONF },
 937 #endif
 938 #ifdef _PC_REC_XFER_ALIGN
 939     { "POSIX_REC_XFER_ALIGN", _PC_REC_XFER_ALIGN, PATHCONF },
 940 #endif
 941 #ifdef _PC_SYMLINK_MAX
 942     { "SYMLINK_MAX", _PC_SYMLINK_MAX, PATHCONF },
 943 #endif
 944 #ifdef _CS_GNU_LIBC_VERSION
 945     { "GNU_LIBC_VERSION", _CS_GNU_LIBC_VERSION, CONFSTR },
 946 #endif
 947 #ifdef _CS_GNU_LIBPTHREAD_VERSION
 948     { "GNU_LIBPTHREAD_VERSION", _CS_GNU_LIBPTHREAD_VERSION, CONFSTR },
 949 #endif
 950 #ifdef _PC_2_SYMLINKS
 951     { "POSIX2_SYMLINKS", _PC_2_SYMLINKS, PATHCONF },
 952 #endif
 953
 954 #ifdef _SC_LEVEL1_ICACHE_SIZE
 955     { "LEVEL1_ICACHE_SIZE", _SC_LEVEL1_ICACHE_SIZE, SYSCONF },
 956 #endif
 957 #ifdef _SC_LEVEL1_ICACHE_ASSOC
 958     { "LEVEL1_ICACHE_ASSOC", _SC_LEVEL1_ICACHE_ASSOC, SYSCONF },
 959 #endif
 960 #ifdef _SC_LEVEL1_ICACHE_LINESIZE
 961     { "LEVEL1_ICACHE_LINESIZE", _SC_LEVEL1_ICACHE_LINESIZE, SYSCONF },
 962 #endif
 963 #ifdef _SC_LEVEL1_DCACHE_SIZE
 964     { "LEVEL1_DCACHE_SIZE", _SC_LEVEL1_DCACHE_SIZE, SYSCONF },
 965 #endif
 966 #ifdef _SC_LEVEL1_DCACHE_ASSOC
 967     { "LEVEL1_DCACHE_ASSOC", _SC_LEVEL1_DCACHE_ASSOC, SYSCONF },
 968 #endif
 969 #ifdef _SC_LEVEL1_DCACHE_LINESIZE
 970     { "LEVEL1_DCACHE_LINESIZE", _SC_LEVEL1_DCACHE_LINESIZE, SYSCONF },
 971 #endif
 972 #ifdef _SC_LEVEL2_CACHE_SIZE
 973     { "LEVEL2_CACHE_SIZE", _SC_LEVEL2_CACHE_SIZE, SYSCONF },
 974 #endif
 975 #ifdef _SC_LEVEL2_CACHE_ASSOC
 976     { "LEVEL2_CACHE_ASSOC", _SC_LEVEL2_CACHE_ASSOC, SYSCONF },
 977 #endif
 978 #ifdef _SC_LEVEL2_CACHE_LINESIZE
 979     { "LEVEL2_CACHE_LINESIZE", _SC_LEVEL2_CACHE_LINESIZE, SYSCONF },
 980 #endif
 981 #ifdef _SC_LEVEL3_CACHE_SIZE
 982     { "LEVEL3_CACHE_SIZE", _SC_LEVEL3_CACHE_SIZE, SYSCONF },
 983 #endif
 984 #ifdef _SC_LEVEL3_CACHE_ASSOC
 985     { "LEVEL3_CACHE_ASSOC", _SC_LEVEL3_CACHE_ASSOC, SYSCONF },
 986 #endif
 987 #ifdef _SC_LEVEL3_CACHE_LINESIZE
 988     { "LEVEL3_CACHE_LINESIZE", _SC_LEVEL3_CACHE_LINESIZE, SYSCONF },
 989 #endif
 990 #ifdef _SC_LEVEL4_CACHE_SIZE
 991     { "LEVEL4_CACHE_SIZE", _SC_LEVEL4_CACHE_SIZE, SYSCONF },
 992 #endif
 993 #ifdef _SC_LEVEL4_CACHE_ASSOC
 994     { "LEVEL4_CACHE_ASSOC", _SC_LEVEL4_CACHE_ASSOC, SYSCONF },
 995 #endif
 996 #ifdef _SC_LEVEL4_CACHE_LINESIZE
 997     { "LEVEL4_CACHE_LINESIZE", _SC_LEVEL4_CACHE_LINESIZE, SYSCONF },
 998 #endif
 999
1000 #ifdef _SC_IPV6
1001     { "IPV6", _SC_IPV6, SYSCONF },
1002 #endif
1003 #ifdef _SC_RAW_SOCKETS
1004     { "RAW_SOCKETS", _SC_RAW_SOCKETS, SYSCONF },
1005 #endif
1006
1007     { NULL, 0, SYSCONF }
1008   };
1009
1010
1011 static const struct { const char *name; int num; } specs[] =
1012   {
1013     { "XBS5_ILP32_OFF32", _SC_XBS5_ILP32_OFF32 },
1014     { "XBS5_ILP32_OFFBIG", _SC_XBS5_ILP32_OFFBIG },
1015     { "XBS5_LP64_OFF64", _SC_XBS5_LP64_OFF64 },
1016     { "XBS5_LPBIG_OFFBIG", _SC_XBS5_LPBIG_OFFBIG },
1017     { "POSIX_V6_ILP32_OFF32", _SC_V6_ILP32_OFF32 },
1018     { "POSIX_V6_ILP32_OFFBIG", _SC_V6_ILP32_OFFBIG },
1019     { "POSIX_V6_LP64_OFF64", _SC_V6_LP64_OFF64 },
1020     { "POSIX_V6_LPBIG_OFFBIG", _SC_V6_LPBIG_OFFBIG },
1021     { "POSIX_V7_ILP32_OFF32", _SC_V7_ILP32_OFF32 },
1022     { "POSIX_V7_ILP32_OFFBIG", _SC_V7_ILP32_OFFBIG },
1023     { "POSIX_V7_LP64_OFF64", _SC_V7_LP64_OFF64 },
1024     { "POSIX_V7_LPBIG_OFFBIG", _SC_V7_LPBIG_OFFBIG },
1025   };
1026 static const int nspecs = sizeof (specs) / sizeof (specs[0]);
1027
1028 extern const char *__progname;
1029
1030
1031 static void
1032 usage (void)
1033 {
1034   fprintf (stderr,
1035            _("Usage: %s [-v specification] variable_name [pathname]\n"),
1036            __progname);
1037   fprintf (stderr,
1038            _("       %s -a [pathname]\n"), __progname);
1039   exit (2);
1040 }
1041
1042
1043 static void
1044 print_all (const char *path)
1045 {
1046   const struct conf *c;
1047   size_t clen;
1048   long int value;
1049   char *cvalue;
1050   for (c = vars; c->name != NULL; ++c) {
1051     printf("%-35s", c->name);
1052     switch (c->call) {
1053       case PATHCONF:
1054         value = pathconf (path, c->call_name);
1055         if (value != -1) {
1056           printf("%ld", value);
1057         }
1058         printf("\n");
1059         break;
1060       case SYSCONF:
1061         value = sysconf (c->call_name);
1062         if (value == -1l) {
1063           if (c->call_name == _SC_UINT_MAX
1064             || c->call_name == _SC_ULONG_MAX)
1065             printf ("%lu", value);
1066         }
1067         else {
1068           printf ("%ld", value);
1069         }
1070         printf ("\n");
1071         break;
1072       case CONFSTR:
1073         clen = confstr (c->call_name, (char *) NULL, 0);
1074         cvalue = (char *) malloc (clen);
1075         if (cvalue == NULL)
1076           error (3, 0, _("memory exhausted"));
1077         if (confstr (c->call_name, cvalue, clen) != clen)
1078           error (3, errno, "confstr");
1079         printf ("%.*s\n", (int) clen, cvalue);
1080         free (cvalue);
1081         break;
1082     }
1083   }
1084   exit (0);
1085 }
1086
1087 int
1088 main (int argc, char *argv[])
1089 {
1090   const struct conf *c;
1091
1092   /* Set locale.  Do not set LC_ALL because the other categories must
1093      not be affected (according to POSIX.2).  */
1094   setlocale (LC_CTYPE, "");
1095   setlocale (LC_MESSAGES, "");
1096
1097   /* Initialize the message catalog.  */
1098   textdomain (PACKAGE);
1099
1100   if (argc > 1 && strcmp (argv[1], "--version") == 0)
1101     {
1102       printf ("getconf %s%s\n", PKGVERSION, VERSION);
1103       printf (gettext ("\
1104 Copyright (C) %s Free Software Foundation, Inc.\n\
1105 This is free software; see the source for copying conditions.  There is NO\n\
1106 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\
1107 "), "2013");
1108       printf (gettext ("Written by %s.\n"), "Roland McGrath");
1109       return 0;
1110     }
1111
1112   if (argc > 1 && strcmp (argv[1], "--help") == 0)
1113     {
1114       printf (gettext ("\
1115 Usage: getconf [-v SPEC] VAR\n\
1116   or:  getconf [-v SPEC] PATH_VAR PATH\n\
1117 \n\
1118 Get the configuration value for variable VAR, or for variable PATH_VAR\n\
1119 for path PATH.  If SPEC is given, give values for compilation\n\
1120 environment SPEC.\n\n"));
1121       printf (gettext ("For bug reporting instructions, please see:\n\
1122 %s.\n"), REPORT_BUGS_TO);
1123       return 0;
1124     }
1125
1126   const char *getconf_dir = getenv ("GETCONF_DIR") ?: GETCONF_DIR;
1127   size_t getconf_dirlen = strlen (getconf_dir);
1128
1129   const char *spec = NULL;
1130   char buf[sizeof "POSIX_V6_LPBIG_OFFBIG"];
1131   char *argv0 = argv[0];
1132   if (argc > 1 && strncmp (argv[1], "-v", 2) == 0)
1133     {
1134       if (argv[1][2] == '\0')
1135         {
1136           if (argc < 3)
1137             usage ();
1138
1139           spec = argv[2];
1140           argv += 2;
1141           argc -= 2;
1142         }
1143       else
1144         {
1145           spec = &argv[1][2];
1146           argv += 1;
1147           argc += 1;
1148         }
1149     }
1150   else
1151     {
1152       char default_name[getconf_dirlen + sizeof "/default"];
1153       memcpy (mempcpy (default_name, getconf_dir, getconf_dirlen),
1154               "/default", sizeof "/default");
1155       int len = readlink (default_name, buf, sizeof buf - 1);
1156       if (len > 0)
1157         {
1158           buf[len] = '\0';
1159           spec = buf;
1160         }
1161     }
1162
1163   /* Check for the specifications we know.  */
1164   if (spec != NULL)
1165     {
1166       int i;
1167       for (i = 0; i < nspecs; ++i)
1168         if (strcmp (spec, specs[i].name) == 0)
1169           break;
1170
1171       if (i == nspecs)
1172         error (2, 0, _("unknown specification \"%s\""), spec);
1173
1174       switch (specs[i].num)
1175         {
1176 #ifndef _XBS5_ILP32_OFF32
1177           case _SC_XBS5_ILP32_OFF32:
1178 #endif
1179 #ifndef _XBS5_ILP32_OFFBIG
1180           case _SC_XBS5_ILP32_OFFBIG:
1181 #endif
1182 #ifndef _XBS5_LP64_OFF64
1183           case _SC_XBS5_LP64_OFF64:
1184 #endif
1185 #ifndef _XBS5_LPBIG_OFFBIG
1186           case _SC_XBS5_LPBIG_OFFBIG:
1187 #endif
1188 #ifndef _POSIX_V6_ILP32_OFF32
1189           case _SC_V6_ILP32_OFF32:
1190 #endif
1191 #ifndef _POSIX_V6_ILP32_OFFBIG
1192           case _SC_V6_ILP32_OFFBIG:
1193 #endif
1194 #ifndef _POSIX_V6_LP64_OFF64
1195           case _SC_V6_LP64_OFF64:
1196 #endif
1197 #ifndef _POSIX_V6_LPBIG_OFFBIG
1198           case _SC_V6_LPBIG_OFFBIG:
1199 #endif
1200 #ifndef _POSIX_V7_ILP32_OFF32
1201           case _SC_V7_ILP32_OFF32:
1202 #endif
1203 #ifndef _POSIX_V7_ILP32_OFFBIG
1204           case _SC_V7_ILP32_OFFBIG:
1205 #endif
1206 #ifndef _POSIX_V7_LP64_OFF64
1207           case _SC_V7_LP64_OFF64:
1208 #endif
1209 #ifndef _POSIX_V7_LPBIG_OFFBIG
1210           case _SC_V7_LPBIG_OFFBIG:
1211 #endif
1212             {
1213               const char *args[argc + 3];
1214               size_t spec_len = strlen (spec);
1215               char getconf_name[getconf_dirlen + 1 + spec_len + 1];
1216               memcpy (mempcpy (mempcpy (getconf_name, getconf_dir,
1217                                         getconf_dirlen),
1218                                "/", 1), spec, spec_len + 1);
1219               args[0] = argv0;
1220               args[1] = "-v";
1221               args[2] = spec;
1222               memcpy (&args[3], &argv[1], argc * sizeof (argv[1]));
1223               execv (getconf_name, (char * const *) args);
1224               error (4, errno, _("Couldn't execute %s"), getconf_name);
1225             }
1226           default:
1227             break;
1228         }
1229     }
1230
1231   if (argc > 1 && strcmp (argv[1], "-a") == 0)
1232     {
1233       if (argc == 2)
1234         print_all ("/");
1235       else if (argc == 3)
1236         print_all (argv[2]);
1237       else
1238         usage ();
1239     }
1240
1241   int ai = 1;
1242   if (argc > ai && strcmp (argv[ai], "--") == 0)
1243     ++ai;
1244
1245   if (argc - ai < 1 || argc - ai > 2)
1246     usage ();
1247
1248   for (c = vars; c->name != NULL; ++c)
1249     if (strcmp (c->name, argv[ai]) == 0
1250         || (strncmp (c->name, "_POSIX_", 7) == 0
1251             && strcmp (c->name + 7, argv[ai]) == 0))
1252       {
1253         long int value;
1254         size_t clen;
1255         char *cvalue;
1256         switch (c->call)
1257           {
1258           case PATHCONF:
1259             if (argc - ai < 2)
1260               usage ();
1261             errno = 0;
1262             value = pathconf (argv[ai + 1], c->call_name);
1263             if (value == -1)
1264               {
1265                 if (errno)
1266                   error (3, errno, "pathconf: %s", argv[ai + 1]);
1267                 else
1268                   puts (_("undefined"));
1269               }
1270             else
1271               printf ("%ld\n", value);
1272             exit (0);
1273
1274           case SYSCONF:
1275             if (argc - ai > 1)
1276               usage ();
1277             value = sysconf (c->call_name);
1278             if (value == -1l)
1279               {
1280                 if (c->call_name == _SC_UINT_MAX
1281                     || c->call_name == _SC_ULONG_MAX)
1282                   printf ("%lu\n", value);
1283                 else
1284                   puts (_("undefined"));
1285               }
1286             else
1287               printf ("%ld\n", value);
1288             exit (0);
1289
1290           case CONFSTR:
1291             if (argc - ai > 1)
1292               usage ();
1293             clen = confstr (c->call_name, (char *) NULL, 0);
1294             cvalue = (char *) malloc (clen);
1295             if (cvalue == NULL)
1296               error (3, 0, _("memory exhausted"));
1297
1298             if (confstr (c->call_name, cvalue, clen) != clen)
1299               error (3, errno, "confstr");
1300
1301             printf ("%.*s\n", (int) clen, cvalue);
1302             exit (0);
1303           }
1304       }
1305
1306   error (2, 0, _("Unrecognized variable `%s'"), argv[ai]);
1307   /* NOTREACHED */
1308   return 2;
1309 }