posix/getconf.c

   1 /* Copyright (C) 1991, 92, 1995-2008, 2009 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, write to the Free Software Foundation,
  16    Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  17
  18 #include <unistd.h>
  19 #include <errno.h>
  20 #include <error.h>
  21 #include <libintl.h>
  22 #include <locale.h>
  23 #include <string.h>
  24 #include <stdlib.h>
  25 #include <stdio.h>
  26
  27 #include "../version.h"
  28 #define PACKAGE _libc_intl_domainname
  29
  30 struct conf
  31   {
  32     const char *name;
  33     const int call_name;
  34     const enum { SYSCONF, CONFSTR, PATHCONF } call;
  35   };
  36
  37 static const struct conf vars[] =
  38   {
  39 #ifdef _PC_LINK_MAX
  40     { "LINK_MAX", _PC_LINK_MAX, PATHCONF },
  41 #endif
  42 #ifdef _PC_LINK_MAX
  43     { "_POSIX_LINK_MAX", _PC_LINK_MAX, PATHCONF },
  44 #endif
  45 #ifdef _PC_MAX_CANON
  46     { "MAX_CANON", _PC_MAX_CANON, PATHCONF },
  47 #endif
  48 #ifdef _PC_MAX_CANON
  49     { "_POSIX_MAX_CANON", _PC_MAX_CANON, PATHCONF },
  50 #endif
  51 #ifdef _PC_MAX_INPUT
  52     { "MAX_INPUT", _PC_MAX_INPUT, PATHCONF },
  53 #endif
  54 #ifdef _PC_MAX_INPUT
  55     { "_POSIX_MAX_INPUT", _PC_MAX_INPUT, PATHCONF },
  56 #endif
  57 #ifdef _PC_NAME_MAX
  58     { "NAME_MAX", _PC_NAME_MAX, PATHCONF },
  59 #endif
  60 #ifdef _PC_NAME_MAX
  61     { "_POSIX_NAME_MAX", _PC_NAME_MAX, PATHCONF },
  62 #endif
  63 #ifdef _PC_PATH_MAX
  64     { "PATH_MAX", _PC_PATH_MAX, PATHCONF },
  65 #endif
  66 #ifdef _PC_PATH_MAX
  67     { "_POSIX_PATH_MAX", _PC_PATH_MAX, PATHCONF },
  68 #endif
  69 #ifdef _PC_PIPE_BUF
  70     { "PIPE_BUF", _PC_PIPE_BUF, PATHCONF },
  71 #endif
  72 #ifdef _PC_PIPE_BUF
  73     { "_POSIX_PIPE_BUF", _PC_PIPE_BUF, PATHCONF },
  74 #endif
  75 #ifdef _PC_SOCK_MAXBUF
  76     { "SOCK_MAXBUF", _PC_SOCK_MAXBUF, PATHCONF },
  77 #endif
  78 #ifdef _PC_ASYNC_IO
  79     { "_POSIX_ASYNC_IO", _PC_ASYNC_IO, PATHCONF },
  80 #endif
  81 #ifdef _PC_CHOWN_RESTRICTED
  82     { "_POSIX_CHOWN_RESTRICTED", _PC_CHOWN_RESTRICTED, PATHCONF },
  83 #endif
  84 #ifdef _PC_NO_TRUNC
  85     { "_POSIX_NO_TRUNC", _PC_NO_TRUNC, PATHCONF },
  86 #endif
  87 #ifdef _PC_PRIO_IO
  88     { "_POSIX_PRIO_IO", _PC_PRIO_IO, PATHCONF },
  89 #endif
  90 #ifdef _PC_SYNC_IO
  91     { "_POSIX_SYNC_IO", _PC_SYNC_IO, PATHCONF },
  92 #endif
  93 #ifdef _PC_VDISABLE
  94     { "_POSIX_VDISABLE", _PC_VDISABLE, PATHCONF },
  95 #endif
  96
  97 #ifdef _SC_ARG_MAX
  98     { "ARG_MAX", _SC_ARG_MAX, SYSCONF },
  99 #endif
 100 #ifdef _SC_ATEXIT_MAX
 101     { "ATEXIT_MAX", _SC_ATEXIT_MAX, SYSCONF },
 102 #endif
 103 #ifdef _SC_CHAR_BIT
 104     { "CHAR_BIT", _SC_CHAR_BIT, SYSCONF },
 105 #endif
 106 #ifdef _SC_CHAR_MAX
 107     { "CHAR_MAX", _SC_CHAR_MAX, SYSCONF },
 108 #endif
 109 #ifdef _SC_CHAR_MIN
 110     { "CHAR_MIN", _SC_CHAR_MIN, SYSCONF },
 111 #endif
 112 #ifdef _SC_CHILD_MAX
 113     { "CHILD_MAX", _SC_CHILD_MAX, SYSCONF },
 114 #endif
 115 #ifdef _SC_CLK_TCK
 116     { "CLK_TCK", _SC_CLK_TCK, SYSCONF },
 117 #endif
 118 #ifdef _SC_INT_MAX
 119     { "INT_MAX", _SC_INT_MAX, SYSCONF },
 120 #endif
 121 #ifdef _SC_INT_MIN
 122     { "INT_MIN", _SC_INT_MIN, SYSCONF },
 123 #endif
 124 #ifdef _SC_UIO_MAXIOV
 125     { "IOV_MAX", _SC_UIO_MAXIOV, SYSCONF },
 126 #endif
 127 #ifdef _SC_LOGIN_NAME_MAX
 128     { "LOGNAME_MAX", _SC_LOGIN_NAME_MAX, SYSCONF },
 129 #endif
 130 #ifdef _SC_LONG_BIT
 131     { "LONG_BIT", _SC_LONG_BIT, SYSCONF },
 132 #endif
 133 #ifdef _SC_MB_LEN_MAX
 134     { "MB_LEN_MAX", _SC_MB_LEN_MAX, SYSCONF },
 135 #endif
 136 #ifdef _SC_NGROUPS_MAX
 137     { "NGROUPS_MAX", _SC_NGROUPS_MAX, SYSCONF },
 138 #endif
 139 #ifdef _SC_NL_ARGMAX
 140     { "NL_ARGMAX", _SC_NL_ARGMAX, SYSCONF },
 141 #endif
 142 #ifdef _SC_NL_LANGMAX
 143     { "NL_LANGMAX", _SC_NL_LANGMAX, SYSCONF },
 144 #endif
 145 #ifdef _SC_NL_MSGMAX
 146     { "NL_MSGMAX", _SC_NL_MSGMAX, SYSCONF },
 147 #endif
 148 #ifdef _SC_NL_NMAX
 149     { "NL_NMAX", _SC_NL_NMAX, SYSCONF },
 150 #endif
 151 #ifdef _SC_NL_SETMAX
 152     { "NL_SETMAX", _SC_NL_SETMAX, SYSCONF },
 153 #endif
 154 #ifdef _SC_NL_TEXTMAX
 155     { "NL_TEXTMAX", _SC_NL_TEXTMAX, SYSCONF },
 156 #endif
 157 #ifdef _SC_GETGR_R_SIZE_MAX
 158     { "NSS_BUFLEN_GROUP", _SC_GETGR_R_SIZE_MAX, SYSCONF },
 159 #endif
 160 #ifdef _SC_GETPW_R_SIZE_MAX
 161     { "NSS_BUFLEN_PASSWD", _SC_GETPW_R_SIZE_MAX, SYSCONF },
 162 #endif
 163 #ifdef _SC_NZERO
 164     { "NZERO", _SC_NZERO, SYSCONF },
 165 #endif
 166 #ifdef _SC_OPEN_MAX
 167     { "OPEN_MAX", _SC_OPEN_MAX, SYSCONF },
 168 #endif
 169 #ifdef _SC_PAGESIZE
 170     { "PAGESIZE", _SC_PAGESIZE, SYSCONF },
 171 #endif
 172 #ifdef _SC_PAGESIZE
 173     { "PAGE_SIZE", _SC_PAGESIZE, SYSCONF },
 174 #endif
 175 #ifdef _SC_PASS_MAX
 176     { "PASS_MAX", _SC_PASS_MAX, SYSCONF },
 177 #endif
 178 #ifdef _SC_THREAD_DESTRUCTOR_ITERATIONS
 179     { "PTHREAD_DESTRUCTOR_ITERATIONS", _SC_THREAD_DESTRUCTOR_ITERATIONS, SYSCONF },
 180 #endif
 181 #ifdef _SC_THREAD_KEYS_MAX
 182     { "PTHREAD_KEYS_MAX", _SC_THREAD_KEYS_MAX, SYSCONF },
 183 #endif
 184 #ifdef _SC_THREAD_STACK_MIN
 185     { "PTHREAD_STACK_MIN", _SC_THREAD_STACK_MIN, SYSCONF },
 186 #endif
 187 #ifdef _SC_THREAD_THREADS_MAX
 188     { "PTHREAD_THREADS_MAX", _SC_THREAD_THREADS_MAX, SYSCONF },
 189 #endif
 190 #ifdef _SC_SCHAR_MAX
 191     { "SCHAR_MAX", _SC_SCHAR_MAX, SYSCONF },
 192 #endif
 193 #ifdef _SC_SCHAR_MIN
 194     { "SCHAR_MIN", _SC_SCHAR_MIN, SYSCONF },
 195 #endif
 196 #ifdef _SC_SHRT_MAX
 197     { "SHRT_MAX", _SC_SHRT_MAX, SYSCONF },
 198 #endif
 199 #ifdef _SC_SHRT_MIN
 200     { "SHRT_MIN", _SC_SHRT_MIN, SYSCONF },
 201 #endif
 202 #ifdef _SC_SSIZE_MAX
 203     { "SSIZE_MAX", _SC_SSIZE_MAX, SYSCONF },
 204 #endif
 205 #ifdef _SC_TTY_NAME_MAX
 206     { "TTY_NAME_MAX", _SC_TTY_NAME_MAX, SYSCONF },
 207 #endif
 208 #ifdef _SC_TZNAME_MAX
 209     { "TZNAME_MAX", _SC_TZNAME_MAX, SYSCONF },
 210 #endif
 211 #ifdef _SC_UCHAR_MAX
 212     { "UCHAR_MAX", _SC_UCHAR_MAX, SYSCONF },
 213 #endif
 214 #ifdef _SC_UINT_MAX
 215     { "UINT_MAX", _SC_UINT_MAX, SYSCONF },
 216 #endif
 217 #ifdef _SC_UIO_MAXIOV
 218     { "UIO_MAXIOV", _SC_UIO_MAXIOV, SYSCONF },
 219 #endif
 220 #ifdef _SC_ULONG_MAX
 221     { "ULONG_MAX", _SC_ULONG_MAX, SYSCONF },
 222 #endif
 223 #ifdef _SC_USHRT_MAX
 224     { "USHRT_MAX", _SC_USHRT_MAX, SYSCONF },
 225 #endif
 226 #ifdef _SC_WORD_BIT
 227     { "WORD_BIT", _SC_WORD_BIT, SYSCONF },
 228 #endif
 229 #ifdef _SC_AVPHYS_PAGES
 230     { "_AVPHYS_PAGES", _SC_AVPHYS_PAGES, SYSCONF },
 231 #endif
 232 #ifdef _SC_NPROCESSORS_CONF
 233     { "_NPROCESSORS_CONF", _SC_NPROCESSORS_CONF, SYSCONF },
 234 #endif
 235 #ifdef _SC_NPROCESSORS_ONLN
 236     { "_NPROCESSORS_ONLN", _SC_NPROCESSORS_ONLN, SYSCONF },
 237 #endif
 238 #ifdef _SC_PHYS_PAGES
 239     { "_PHYS_PAGES", _SC_PHYS_PAGES, SYSCONF },
 240 #endif
 241 #ifdef _SC_ARG_MAX
 242     { "_POSIX_ARG_MAX", _SC_ARG_MAX, SYSCONF },
 243 #endif
 244 #ifdef _SC_ASYNCHRONOUS_IO
 245     { "_POSIX_ASYNCHRONOUS_IO", _SC_ASYNCHRONOUS_IO, SYSCONF },
 246 #endif
 247 #ifdef _SC_CHILD_MAX
 248     { "_POSIX_CHILD_MAX", _SC_CHILD_MAX, SYSCONF },
 249 #endif
 250 #ifdef _SC_FSYNC
 251     { "_POSIX_FSYNC", _SC_FSYNC, SYSCONF },
 252 #endif
 253 #ifdef _SC_JOB_CONTROL
 254     { "_POSIX_JOB_CONTROL", _SC_JOB_CONTROL, SYSCONF },
 255 #endif
 256 #ifdef _SC_MAPPED_FILES
 257     { "_POSIX_MAPPED_FILES", _SC_MAPPED_FILES, SYSCONF },
 258 #endif
 259 #ifdef _SC_MEMLOCK
 260     { "_POSIX_MEMLOCK", _SC_MEMLOCK, SYSCONF },
 261 #endif
 262 #ifdef _SC_MEMLOCK_RANGE
 263     { "_POSIX_MEMLOCK_RANGE", _SC_MEMLOCK_RANGE, SYSCONF },
 264 #endif
 265 #ifdef _SC_MEMORY_PROTECTION
 266     { "_POSIX_MEMORY_PROTECTION", _SC_MEMORY_PROTECTION, SYSCONF },
 267 #endif
 268 #ifdef _SC_MESSAGE_PASSING
 269     { "_POSIX_MESSAGE_PASSING", _SC_MESSAGE_PASSING, SYSCONF },
 270 #endif
 271 #ifdef _SC_NGROUPS_MAX
 272     { "_POSIX_NGROUPS_MAX", _SC_NGROUPS_MAX, SYSCONF },
 273 #endif
 274 #ifdef _SC_OPEN_MAX
 275     { "_POSIX_OPEN_MAX", _SC_OPEN_MAX, SYSCONF },
 276 #endif
 277 #ifdef _SC_PII
 278     { "_POSIX_PII", _SC_PII, SYSCONF },
 279 #endif
 280 #ifdef _SC_PII_INTERNET
 281     { "_POSIX_PII_INTERNET", _SC_PII_INTERNET, SYSCONF },
 282 #endif
 283 #ifdef _SC_PII_INTERNET_DGRAM
 284     { "_POSIX_PII_INTERNET_DGRAM", _SC_PII_INTERNET_DGRAM, SYSCONF },
 285 #endif
 286 #ifdef _SC_PII_INTERNET_STREAM
 287     { "_POSIX_PII_INTERNET_STREAM", _SC_PII_INTERNET_STREAM, SYSCONF },
 288 #endif
 289 #ifdef _SC_PII_OSI
 290     { "_POSIX_PII_OSI", _SC_PII_OSI, SYSCONF },
 291 #endif
 292 #ifdef _SC_PII_OSI_CLTS
 293     { "_POSIX_PII_OSI_CLTS", _SC_PII_OSI_CLTS, SYSCONF },
 294 #endif
 295 #ifdef _SC_PII_OSI_COTS
 296     { "_POSIX_PII_OSI_COTS", _SC_PII_OSI_COTS, SYSCONF },
 297 #endif
 298 #ifdef _SC_PII_OSI_M
 299     { "_POSIX_PII_OSI_M", _SC_PII_OSI_M, SYSCONF },
 300 #endif
 301 #ifdef _SC_PII_SOCKET
 302     { "_POSIX_PII_SOCKET", _SC_PII_SOCKET, SYSCONF },
 303 #endif
 304 #ifdef _SC_PII_XTI
 305     { "_POSIX_PII_XTI", _SC_PII_XTI, SYSCONF },
 306 #endif
 307 #ifdef _SC_POLL
 308     { "_POSIX_POLL", _SC_POLL, SYSCONF },
 309 #endif
 310 #ifdef _SC_PRIORITIZED_IO
 311     { "_POSIX_PRIORITIZED_IO", _SC_PRIORITIZED_IO, SYSCONF },
 312 #endif
 313 #ifdef _SC_PRIORITY_SCHEDULING
 314     { "_POSIX_PRIORITY_SCHEDULING", _SC_PRIORITY_SCHEDULING, SYSCONF },
 315 #endif
 316 #ifdef _SC_REALTIME_SIGNALS
 317     { "_POSIX_REALTIME_SIGNALS", _SC_REALTIME_SIGNALS, SYSCONF },
 318 #endif
 319 #ifdef _SC_SAVED_IDS
 320     { "_POSIX_SAVED_IDS", _SC_SAVED_IDS, SYSCONF },
 321 #endif
 322 #ifdef _SC_SELECT
 323     { "_POSIX_SELECT", _SC_SELECT, SYSCONF },
 324 #endif
 325 #ifdef _SC_SEMAPHORES
 326     { "_POSIX_SEMAPHORES", _SC_SEMAPHORES, SYSCONF },
 327 #endif
 328 #ifdef _SC_SHARED_MEMORY_OBJECTS
 329     { "_POSIX_SHARED_MEMORY_OBJECTS", _SC_SHARED_MEMORY_OBJECTS, SYSCONF },
 330 #endif
 331 #ifdef _SC_SSIZE_MAX
 332     { "_POSIX_SSIZE_MAX", _SC_SSIZE_MAX, SYSCONF },
 333 #endif
 334 #ifdef _SC_STREAM_MAX
 335     { "_POSIX_STREAM_MAX", _SC_STREAM_MAX, SYSCONF },
 336 #endif
 337 #ifdef _SC_SYNCHRONIZED_IO
 338     { "_POSIX_SYNCHRONIZED_IO", _SC_SYNCHRONIZED_IO, SYSCONF },
 339 #endif
 340 #ifdef _SC_THREADS
 341     { "_POSIX_THREADS", _SC_THREADS, SYSCONF },
 342 #endif
 343 #ifdef _SC_THREAD_ATTR_STACKADDR
 344     { "_POSIX_THREAD_ATTR_STACKADDR", _SC_THREAD_ATTR_STACKADDR, SYSCONF },
 345 #endif
 346 #ifdef _SC_THREAD_ATTR_STACKSIZE
 347     { "_POSIX_THREAD_ATTR_STACKSIZE", _SC_THREAD_ATTR_STACKSIZE, SYSCONF },
 348 #endif
 349 #ifdef _SC_THREAD_PRIORITY_SCHEDULING
 350     { "_POSIX_THREAD_PRIORITY_SCHEDULING", _SC_THREAD_PRIORITY_SCHEDULING, SYSCONF },
 351 #endif
 352 #ifdef _SC_THREAD_PRIO_INHERIT
 353     { "_POSIX_THREAD_PRIO_INHERIT", _SC_THREAD_PRIO_INHERIT, SYSCONF },
 354 #endif
 355 #ifdef _SC_THREAD_PRIO_PROTECT
 356     { "_POSIX_THREAD_PRIO_PROTECT", _SC_THREAD_PRIO_PROTECT, SYSCONF },
 357 #endif
 358 #ifdef _SC_THREAD_ROBUST_PRIO_INHERIT
 359     { "_POSIX_THREAD_ROBUST_PRIO_INHERIT", _SC_THREAD_ROBUST_PRIO_INHERIT,
 360       SYSCONF },
 361 #endif
 362 #ifdef _SC_THREAD_ROBUST_PRIO_PROTECT
 363     { "_POSIX_THREAD_ROBUST_PRIO_PROTECT", _SC_THREAD_ROBUST_PRIO_PROTECT,
 364       SYSCONF },
 365 #endif
 366 #ifdef _SC_THREAD_PROCESS_SHARED
 367     { "_POSIX_THREAD_PROCESS_SHARED", _SC_THREAD_PROCESS_SHARED, SYSCONF },
 368 #endif
 369 #ifdef _SC_THREAD_SAFE_FUNCTIONS
 370     { "_POSIX_THREAD_SAFE_FUNCTIONS", _SC_THREAD_SAFE_FUNCTIONS, SYSCONF },
 371 #endif
 372 #ifdef _SC_TIMERS
 373     { "_POSIX_TIMERS", _SC_TIMERS, SYSCONF },
 374 #endif
 375 #ifdef _SC_TIMER_MAX
 376     { "TIMER_MAX", _SC_TIMER_MAX, SYSCONF },
 377 #endif
 378 #ifdef _SC_TZNAME_MAX
 379     { "_POSIX_TZNAME_MAX", _SC_TZNAME_MAX, SYSCONF },
 380 #endif
 381 #ifdef _SC_VERSION
 382     { "_POSIX_VERSION", _SC_VERSION, SYSCONF },
 383 #endif
 384 #ifdef _SC_T_IOV_MAX
 385     { "_T_IOV_MAX", _SC_T_IOV_MAX, SYSCONF },
 386 #endif
 387 #ifdef _SC_XOPEN_CRYPT
 388     { "_XOPEN_CRYPT", _SC_XOPEN_CRYPT, SYSCONF },
 389 #endif
 390 #ifdef _SC_XOPEN_ENH_I18N
 391     { "_XOPEN_ENH_I18N", _SC_XOPEN_ENH_I18N, SYSCONF },
 392 #endif
 393 #ifdef _SC_XOPEN_LEGACY
 394     { "_XOPEN_LEGACY", _SC_XOPEN_LEGACY, SYSCONF },
 395 #endif
 396 #ifdef _SC_XOPEN_REALTIME
 397     { "_XOPEN_REALTIME", _SC_XOPEN_REALTIME, SYSCONF },
 398 #endif
 399 #ifdef _SC_XOPEN_REALTIME_THREADS
 400     { "_XOPEN_REALTIME_THREADS", _SC_XOPEN_REALTIME_THREADS, SYSCONF },
 401 #endif
 402 #ifdef _SC_XOPEN_SHM
 403     { "_XOPEN_SHM", _SC_XOPEN_SHM, SYSCONF },
 404 #endif
 405 #ifdef _SC_XOPEN_UNIX
 406     { "_XOPEN_UNIX", _SC_XOPEN_UNIX, SYSCONF },
 407 #endif
 408 #ifdef _SC_XOPEN_VERSION
 409     { "_XOPEN_VERSION", _SC_XOPEN_VERSION, SYSCONF },
 410 #endif
 411 #ifdef _SC_XOPEN_XCU_VERSION
 412     { "_XOPEN_XCU_VERSION", _SC_XOPEN_XCU_VERSION, SYSCONF },
 413 #endif
 414 #ifdef _SC_XOPEN_XPG2
 415     { "_XOPEN_XPG2", _SC_XOPEN_XPG2, SYSCONF },
 416 #endif
 417 #ifdef _SC_XOPEN_XPG3
 418     { "_XOPEN_XPG3", _SC_XOPEN_XPG3, SYSCONF },
 419 #endif
 420 #ifdef _SC_XOPEN_XPG4
 421     { "_XOPEN_XPG4", _SC_XOPEN_XPG4, SYSCONF },
 422 #endif
 423     /* POSIX.2  */
 424 #ifdef _SC_BC_BASE_MAX
 425     { "BC_BASE_MAX", _SC_BC_BASE_MAX, SYSCONF },
 426 #endif
 427 #ifdef _SC_BC_DIM_MAX
 428     { "BC_DIM_MAX", _SC_BC_DIM_MAX, SYSCONF },
 429 #endif
 430 #ifdef _SC_BC_SCALE_MAX
 431     { "BC_SCALE_MAX", _SC_BC_SCALE_MAX, SYSCONF },
 432 #endif
 433 #ifdef _SC_BC_STRING_MAX
 434     { "BC_STRING_MAX", _SC_BC_STRING_MAX, SYSCONF },
 435 #endif
 436     { "CHARCLASS_NAME_MAX", _SC_CHARCLASS_NAME_MAX, SYSCONF },
 437 #ifdef _SC_COLL_WEIGHTS_MAX
 438     { "COLL_WEIGHTS_MAX", _SC_COLL_WEIGHTS_MAX, SYSCONF },
 439 #endif
 440 #ifdef _SC_EQUIV_CLASS_MAX
 441     { "EQUIV_CLASS_MAX", _SC_EQUIV_CLASS_MAX, SYSCONF },
 442 #endif
 443 #ifdef _SC_EXPR_NEST_MAX
 444     { "EXPR_NEST_MAX", _SC_EXPR_NEST_MAX, SYSCONF },
 445 #endif
 446 #ifdef _SC_LINE_MAX
 447     { "LINE_MAX", _SC_LINE_MAX, SYSCONF },
 448 #endif
 449 #ifdef _SC_BC_BASE_MAX
 450     { "POSIX2_BC_BASE_MAX", _SC_BC_BASE_MAX, SYSCONF },
 451 #endif
 452 #ifdef _SC_BC_DIM_MAX
 453     { "POSIX2_BC_DIM_MAX", _SC_BC_DIM_MAX, SYSCONF },
 454 #endif
 455 #ifdef _SC_BC_SCALE_MAX
 456     { "POSIX2_BC_SCALE_MAX", _SC_BC_SCALE_MAX, SYSCONF },
 457 #endif
 458 #ifdef _SC_BC_STRING_MAX
 459     { "POSIX2_BC_STRING_MAX", _SC_BC_STRING_MAX, SYSCONF },
 460 #endif
 461 #ifdef _SC_2_CHAR_TERM
 462     { "POSIX2_CHAR_TERM", _SC_2_CHAR_TERM, SYSCONF },
 463 #endif
 464 #ifdef _SC_COLL_WEIGHTS_MAX
 465     { "POSIX2_COLL_WEIGHTS_MAX", _SC_COLL_WEIGHTS_MAX, SYSCONF },
 466 #endif
 467 #ifdef _SC_2_C_BIND
 468     { "POSIX2_C_BIND", _SC_2_C_BIND, SYSCONF },
 469 #endif
 470 #ifdef _SC_2_C_DEV
 471     { "POSIX2_C_DEV", _SC_2_C_DEV, SYSCONF },
 472 #endif
 473 #ifdef _SC_2_C_VERSION
 474     { "POSIX2_C_VERSION", _SC_2_C_VERSION, SYSCONF },
 475 #endif
 476 #ifdef _SC_EXPR_NEST_MAX
 477     { "POSIX2_EXPR_NEST_MAX", _SC_EXPR_NEST_MAX, SYSCONF },
 478 #endif
 479 #ifdef _SC_2_FORT_DEV
 480     { "POSIX2_FORT_DEV", _SC_2_FORT_DEV, SYSCONF },
 481 #endif
 482 #ifdef _SC_2_FORT_RUN
 483     { "POSIX2_FORT_RUN", _SC_2_FORT_RUN, SYSCONF },
 484 #endif
 485 #ifdef _SC_LINE_MAX
 486     { "_POSIX2_LINE_MAX", _SC_LINE_MAX, SYSCONF },
 487     { "POSIX2_LINE_MAX", _SC_LINE_MAX, SYSCONF },
 488 #endif
 489 #ifdef _SC_2_LOCALEDEF
 490     { "POSIX2_LOCALEDEF", _SC_2_LOCALEDEF, SYSCONF },
 491 #endif
 492 #ifdef _SC_RE_DUP_MAX
 493     { "POSIX2_RE_DUP_MAX", _SC_RE_DUP_MAX, SYSCONF },
 494 #endif
 495 #ifdef _SC_2_SW_DEV
 496     { "POSIX2_SW_DEV", _SC_2_SW_DEV, SYSCONF },
 497 #endif
 498 #ifdef _SC_2_UPE
 499     { "POSIX2_UPE", _SC_2_UPE, SYSCONF },
 500 #endif
 501 #ifdef _SC_2_VERSION
 502     { "POSIX2_VERSION", _SC_2_VERSION, SYSCONF },
 503 #endif
 504 #ifdef _SC_RE_DUP_MAX
 505     { "RE_DUP_MAX", _SC_RE_DUP_MAX, SYSCONF },
 506 #endif
 507
 508 #ifdef _CS_PATH
 509     { "PATH", _CS_PATH, CONFSTR },
 510     { "CS_PATH", _CS_PATH, CONFSTR },
 511 #endif
 512
 513     /* LFS */
 514 #ifdef _CS_LFS_CFLAGS
 515     { "LFS_CFLAGS", _CS_LFS_CFLAGS, CONFSTR },
 516 #endif
 517 #ifdef _CS_LFS_LDFLAGS
 518     { "LFS_LDFLAGS", _CS_LFS_LDFLAGS, CONFSTR },
 519 #endif
 520 #ifdef _CS_LFS_LIBS
 521     { "LFS_LIBS", _CS_LFS_LIBS, CONFSTR },
 522 #endif
 523 #ifdef _CS_LFS_LINTFLAGS
 524     { "LFS_LINTFLAGS", _CS_LFS_LINTFLAGS, CONFSTR },
 525 #endif
 526 #ifdef _CS_LFS64_CFLAGS
 527     { "LFS64_CFLAGS", _CS_LFS64_CFLAGS, CONFSTR },
 528 #endif
 529 #ifdef _CS_LFS64_LDFLAGS
 530     { "LFS64_LDFLAGS", _CS_LFS64_LDFLAGS, CONFSTR },
 531 #endif
 532 #ifdef _CS_LFS64_LIBS
 533     { "LFS64_LIBS", _CS_LFS64_LIBS, CONFSTR },
 534 #endif
 535 #ifdef _CS_LFS64_LINTFLAGS
 536     { "LFS64_LINTFLAGS", _CS_LFS64_LINTFLAGS, CONFSTR },
 537 #endif
 538
 539     /* Programming environments.  */
 540 #ifdef _CS_V5_WIDTH_RESTRICTED_ENVS
 541     { "_XBS5_WIDTH_RESTRICTED_ENVS", _CS_V5_WIDTH_RESTRICTED_ENVS, CONFSTR },
 542     { "XBS5_WIDTH_RESTRICTED_ENVS", _CS_V5_WIDTH_RESTRICTED_ENVS, CONFSTR },
 543 #endif
 544
 545 #ifdef _SC_XBS5_ILP32_OFF32
 546     { "_XBS5_ILP32_OFF32", _SC_XBS5_ILP32_OFF32, SYSCONF },
 547 #endif
 548 #ifdef _CS_XBS5_ILP32_OFF32_CFLAGS
 549     { "XBS5_ILP32_OFF32_CFLAGS", _CS_XBS5_ILP32_OFF32_CFLAGS, CONFSTR },
 550 #endif
 551 #ifdef _CS_XBS5_ILP32_OFF32_LDFLAGS
 552     { "XBS5_ILP32_OFF32_LDFLAGS", _CS_XBS5_ILP32_OFF32_LDFLAGS, CONFSTR },
 553 #endif
 554 #ifdef _CS_XBS5_ILP32_OFF32_LIBS
 555     { "XBS5_ILP32_OFF32_LIBS", _CS_XBS5_ILP32_OFF32_LIBS, CONFSTR },
 556 #endif
 557 #ifdef _CS_XBS5_ILP32_OFF32_LINTFLAGS
 558     { "XBS5_ILP32_OFF32_LINTFLAGS", _CS_XBS5_ILP32_OFF32_LINTFLAGS, CONFSTR },
 559 #endif
 560
 561 #ifdef _SC_XBS5_ILP32_OFFBIG
 562     { "_XBS5_ILP32_OFFBIG", _SC_XBS5_ILP32_OFFBIG, SYSCONF },
 563 #endif
 564 #ifdef _CS_XBS5_ILP32_OFFBIG_CFLAGS
 565     { "XBS5_ILP32_OFFBIG_CFLAGS", _CS_XBS5_ILP32_OFFBIG_CFLAGS, CONFSTR },
 566 #endif
 567 #ifdef _CS_XBS5_ILP32_OFFBIG_LDFLAGS
 568     { "XBS5_ILP32_OFFBIG_LDFLAGS", _CS_XBS5_ILP32_OFFBIG_LDFLAGS, CONFSTR },
 569 #endif
 570 #ifdef _CS_XBS5_ILP32_OFFBIG_LIBS
 571     { "XBS5_ILP32_OFFBIG_LIBS", _CS_XBS5_ILP32_OFFBIG_LIBS, CONFSTR },
 572 #endif
 573 #ifdef _CS_XBS5_ILP32_OFFBIG_LINTFLAGS
 574     { "XBS5_ILP32_OFFBIG_LINTFLAGS", _CS_XBS5_ILP32_OFFBIG_LINTFLAGS, CONFSTR },
 575 #endif
 576
 577 #ifdef _SC_XBS5_LP64_OFF64
 578     { "_XBS5_LP64_OFF64", _SC_XBS5_LP64_OFF64, SYSCONF },
 579 #endif
 580 #ifdef _CS_XBS5_LP64_OFF64_CFLAGS
 581     { "XBS5_LP64_OFF64_CFLAGS", _CS_XBS5_LP64_OFF64_CFLAGS, CONFSTR },
 582 #endif
 583 #ifdef _CS_XBS5_LP64_OFF64_LDFLAGS
 584     { "XBS5_LP64_OFF64_LDFLAGS", _CS_XBS5_LP64_OFF64_LDFLAGS, CONFSTR },
 585 #endif
 586 #ifdef _CS_XBS5_LP64_OFF64_LIBS
 587     { "XBS5_LP64_OFF64_LIBS", _CS_XBS5_LP64_OFF64_LIBS, CONFSTR },
 588 #endif
 589 #ifdef _CS_XBS5_LP64_OFF64_LINTFLAGS
 590     { "XBS5_LP64_OFF64_LINTFLAGS", _CS_XBS5_LP64_OFF64_LINTFLAGS, CONFSTR },
 591 #endif
 592
 593 #ifdef _SC_XBS5_LPBIG_OFFBIG
 594     { "_XBS5_LPBIG_OFFBIG", _SC_XBS5_LPBIG_OFFBIG, SYSCONF },
 595 #endif
 596 #ifdef _CS_XBS5_LPBIG_OFFBIG_CFLAGS
 597     { "XBS5_LPBIG_OFFBIG_CFLAGS", _CS_XBS5_LPBIG_OFFBIG_CFLAGS, CONFSTR },
 598 #endif
 599 #ifdef _CS_XBS5_LPBIG_OFFBIG_LDFLAGS
 600     { "XBS5_LPBIG_OFFBIG_LDFLAGS", _CS_XBS5_LPBIG_OFFBIG_LDFLAGS, CONFSTR },
 601 #endif
 602 #ifdef _CS_XBS5_LPBIG_OFFBIG_LIBS
 603     { "XBS5_LPBIG_OFFBIG_LIBS", _CS_XBS5_LPBIG_OFFBIG_LIBS, CONFSTR },
 604 #endif
 605 #ifdef _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS
 606     { "XBS5_LPBIG_OFFBIG_LINTFLAGS", _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS, CONFSTR },
 607 #endif
 608
 609 #ifdef _SC_V6_ILP32_OFF32
 610     { "_POSIX_V6_ILP32_OFF32", _SC_V6_ILP32_OFF32, SYSCONF },
 611 #endif
 612 #ifdef _CS_POSIX_V6_ILP32_OFF32_CFLAGS
 613     { "POSIX_V6_ILP32_OFF32_CFLAGS", _CS_POSIX_V6_ILP32_OFF32_CFLAGS, CONFSTR },
 614 #endif
 615 #ifdef _CS_POSIX_V6_ILP32_OFF32_LDFLAGS
 616     { "POSIX_V6_ILP32_OFF32_LDFLAGS", _CS_POSIX_V6_ILP32_OFF32_LDFLAGS, CONFSTR },
 617 #endif
 618 #ifdef _CS_POSIX_V6_ILP32_OFF32_LIBS
 619     { "POSIX_V6_ILP32_OFF32_LIBS", _CS_POSIX_V6_ILP32_OFF32_LIBS, CONFSTR },
 620 #endif
 621 #ifdef _CS_POSIX_V6_ILP32_OFF32_LINTFLAGS
 622     { "POSIX_V6_ILP32_OFF32_LINTFLAGS", _CS_POSIX_V6_ILP32_OFF32_LINTFLAGS, CONFSTR },
 623 #endif
 624
 625 #ifdef _CS_V6_WIDTH_RESTRICTED_ENVS
 626     { "_POSIX_V6_WIDTH_RESTRICTED_ENVS", _CS_V6_WIDTH_RESTRICTED_ENVS, CONFSTR },
 627     { "POSIX_V6_WIDTH_RESTRICTED_ENVS", _CS_V6_WIDTH_RESTRICTED_ENVS, CONFSTR },
 628 #endif
 629
 630 #ifdef _SC_V6_ILP32_OFFBIG
 631     { "_POSIX_V6_ILP32_OFFBIG", _SC_V6_ILP32_OFFBIG, SYSCONF },
 632 #endif
 633 #ifdef _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS
 634     { "POSIX_V6_ILP32_OFFBIG_CFLAGS", _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS, CONFSTR },
 635 #endif
 636 #ifdef _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS
 637     { "POSIX_V6_ILP32_OFFBIG_LDFLAGS", _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS, CONFSTR },
 638 #endif
 639 #ifdef _CS_POSIX_V6_ILP32_OFFBIG_LIBS
 640     { "POSIX_V6_ILP32_OFFBIG_LIBS", _CS_POSIX_V6_ILP32_OFFBIG_LIBS, CONFSTR },
 641 #endif
 642 #ifdef _CS_POSIX_V6_ILP32_OFFBIG_LINTFLAGS
 643     { "POSIX_V6_ILP32_OFFBIG_LINTFLAGS", _CS_POSIX_V6_ILP32_OFFBIG_LINTFLAGS, CONFSTR },
 644 #endif
 645
 646 #ifdef _SC_V6_LP64_OFF64
 647     { "_POSIX_V6_LP64_OFF64", _SC_V6_LP64_OFF64, SYSCONF },
 648 #endif
 649 #ifdef _CS_POSIX_V6_LP64_OFF64_CFLAGS
 650     { "POSIX_V6_LP64_OFF64_CFLAGS", _CS_POSIX_V6_LP64_OFF64_CFLAGS, CONFSTR },
 651 #endif
 652 #ifdef _CS_POSIX_V6_LP64_OFF64_LDFLAGS
 653     { "POSIX_V6_LP64_OFF64_LDFLAGS", _CS_POSIX_V6_LP64_OFF64_LDFLAGS, CONFSTR },
 654 #endif
 655 #ifdef _CS_POSIX_V6_LP64_OFF64_LIBS
 656     { "POSIX_V6_LP64_OFF64_LIBS", _CS_POSIX_V6_LP64_OFF64_LIBS, CONFSTR },
 657 #endif
 658 #ifdef _CS_POSIX_V6_LP64_OFF64_LINTFLAGS
 659     { "POSIX_V6_LP64_OFF64_LINTFLAGS", _CS_POSIX_V6_LP64_OFF64_LINTFLAGS, CONFSTR },
 660 #endif
 661
 662 #ifdef _SC_V6_LPBIG_OFFBIG
 663     { "_POSIX_V6_LPBIG_OFFBIG", _SC_V6_LPBIG_OFFBIG, SYSCONF },
 664 #endif
 665 #ifdef _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS
 666     { "POSIX_V6_LPBIG_OFFBIG_CFLAGS", _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS, CONFSTR },
 667 #endif
 668 #ifdef _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS
 669     { "POSIX_V6_LPBIG_OFFBIG_LDFLAGS", _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS, CONFSTR },
 670 #endif
 671 #ifdef _CS_POSIX_V6_LPBIG_OFFBIG_LIBS
 672     { "POSIX_V6_LPBIG_OFFBIG_LIBS", _CS_POSIX_V6_LPBIG_OFFBIG_LIBS, CONFSTR },
 673 #endif
 674 #ifdef _CS_POSIX_V6_LPBIG_OFFBIG_LINTFLAGS
 675     { "POSIX_V6_LPBIG_OFFBIG_LINTFLAGS", _CS_POSIX_V6_LPBIG_OFFBIG_LINTFLAGS, CONFSTR },
 676 #endif
 677
 678 #ifdef _SC_V7_ILP32_OFF32
 679     { "_POSIX_V7_ILP32_OFF32", _SC_V7_ILP32_OFF32, SYSCONF },
 680 #endif
 681 #ifdef _CS_POSIX_V7_ILP32_OFF32_CFLAGS
 682     { "POSIX_V7_ILP32_OFF32_CFLAGS", _CS_POSIX_V7_ILP32_OFF32_CFLAGS, CONFSTR },
 683 #endif
 684 #ifdef _CS_POSIX_V7_ILP32_OFF32_LDFLAGS
 685     { "POSIX_V7_ILP32_OFF32_LDFLAGS", _CS_POSIX_V7_ILP32_OFF32_LDFLAGS, CONFSTR },
 686 #endif
 687 #ifdef _CS_POSIX_V7_ILP32_OFF32_LIBS
 688     { "POSIX_V7_ILP32_OFF32_LIBS", _CS_POSIX_V7_ILP32_OFF32_LIBS, CONFSTR },
 689 #endif
 690 #ifdef _CS_POSIX_V7_ILP32_OFF32_LINTFLAGS
 691     { "POSIX_V7_ILP32_OFF32_LINTFLAGS", _CS_POSIX_V7_ILP32_OFF32_LINTFLAGS, CONFSTR },
 692 #endif
 693
 694 #ifdef _CS_V7_WIDTH_RESTRICTED_ENVS
 695     { "_POSIX_V7_WIDTH_RESTRICTED_ENVS", _CS_V7_WIDTH_RESTRICTED_ENVS, CONFSTR },
 696     { "POSIX_V7_WIDTH_RESTRICTED_ENVS", _CS_V7_WIDTH_RESTRICTED_ENVS, CONFSTR },
 697 #endif
 698
 699 #ifdef _SC_V7_ILP32_OFFBIG
 700     { "_POSIX_V7_ILP32_OFFBIG", _SC_V7_ILP32_OFFBIG, SYSCONF },
 701 #endif
 702 #ifdef _CS_POSIX_V7_ILP32_OFFBIG_CFLAGS
 703     { "POSIX_V7_ILP32_OFFBIG_CFLAGS", _CS_POSIX_V7_ILP32_OFFBIG_CFLAGS, CONFSTR },
 704 #endif
 705 #ifdef _CS_POSIX_V7_ILP32_OFFBIG_LDFLAGS
 706     { "POSIX_V7_ILP32_OFFBIG_LDFLAGS", _CS_POSIX_V7_ILP32_OFFBIG_LDFLAGS, CONFSTR },
 707 #endif
 708 #ifdef _CS_POSIX_V7_ILP32_OFFBIG_LIBS
 709     { "POSIX_V7_ILP32_OFFBIG_LIBS", _CS_POSIX_V7_ILP32_OFFBIG_LIBS, CONFSTR },
 710 #endif
 711 #ifdef _CS_POSIX_V7_ILP32_OFFBIG_LINTFLAGS
 712     { "POSIX_V7_ILP32_OFFBIG_LINTFLAGS", _CS_POSIX_V7_ILP32_OFFBIG_LINTFLAGS, CONFSTR },
 713 #endif
 714
 715 #ifdef _SC_V7_LP64_OFF64
 716     { "_POSIX_V7_LP64_OFF64", _SC_V7_LP64_OFF64, SYSCONF },
 717 #endif
 718 #ifdef _CS_POSIX_V7_LP64_OFF64_CFLAGS
 719     { "POSIX_V7_LP64_OFF64_CFLAGS", _CS_POSIX_V7_LP64_OFF64_CFLAGS, CONFSTR },
 720 #endif
 721 #ifdef _CS_POSIX_V7_LP64_OFF64_LDFLAGS
 722     { "POSIX_V7_LP64_OFF64_LDFLAGS", _CS_POSIX_V7_LP64_OFF64_LDFLAGS, CONFSTR },
 723 #endif
 724 #ifdef _CS_POSIX_V7_LP64_OFF64_LIBS
 725     { "POSIX_V7_LP64_OFF64_LIBS", _CS_POSIX_V7_LP64_OFF64_LIBS, CONFSTR },
 726 #endif
 727 #ifdef _CS_POSIX_V7_LP64_OFF64_LINTFLAGS
 728     { "POSIX_V7_LP64_OFF64_LINTFLAGS", _CS_POSIX_V7_LP64_OFF64_LINTFLAGS, CONFSTR },
 729 #endif
 730
 731 #ifdef _SC_V7_LPBIG_OFFBIG
 732     { "_POSIX_V7_LPBIG_OFFBIG", _SC_V7_LPBIG_OFFBIG, SYSCONF },
 733 #endif
 734 #ifdef _CS_POSIX_V7_LPBIG_OFFBIG_CFLAGS
 735     { "POSIX_V7_LPBIG_OFFBIG_CFLAGS", _CS_POSIX_V7_LPBIG_OFFBIG_CFLAGS, CONFSTR },
 736 #endif
 737 #ifdef _CS_POSIX_V7_LPBIG_OFFBIG_LDFLAGS
 738     { "POSIX_V7_LPBIG_OFFBIG_LDFLAGS", _CS_POSIX_V7_LPBIG_OFFBIG_LDFLAGS, CONFSTR },
 739 #endif
 740 #ifdef _CS_POSIX_V7_LPBIG_OFFBIG_LIBS
 741     { "POSIX_V7_LPBIG_OFFBIG_LIBS", _CS_POSIX_V7_LPBIG_OFFBIG_LIBS, CONFSTR },
 742 #endif
 743 #ifdef _CS_POSIX_V7_LPBIG_OFFBIG_LINTFLAGS
 744     { "POSIX_V7_LPBIG_OFFBIG_LINTFLAGS", _CS_POSIX_V7_LPBIG_OFFBIG_LINTFLAGS, CONFSTR },
 745 #endif
 746
 747 #ifdef _SC_ADVISORY_INFO
 748     { "_POSIX_ADVISORY_INFO", _SC_ADVISORY_INFO, SYSCONF },
 749 #endif
 750 #ifdef _SC_BARRIERS
 751     { "_POSIX_BARRIERS", _SC_BARRIERS, SYSCONF },
 752 #endif
 753 #ifdef _SC_BASE
 754     { "_POSIX_BASE", _SC_BASE, SYSCONF },
 755 #endif
 756 #ifdef _SC_C_LANG_SUPPORT
 757     { "_POSIX_C_LANG_SUPPORT", _SC_C_LANG_SUPPORT, SYSCONF },
 758 #endif
 759 #ifdef _SC_C_LANG_SUPPORT_R
 760     { "_POSIX_C_LANG_SUPPORT_R", _SC_C_LANG_SUPPORT_R, SYSCONF },
 761 #endif
 762 #ifdef _SC_CLOCK_SELECTION
 763     { "_POSIX_CLOCK_SELECTION", _SC_CLOCK_SELECTION, SYSCONF },
 764 #endif
 765 #ifdef _SC_CPUTIME
 766     { "_POSIX_CPUTIME", _SC_CPUTIME, SYSCONF },
 767 #endif
 768 #ifdef _SC_THREAD_CPUTIME
 769     { "_POSIX_THREAD_CPUTIME", _SC_THREAD_CPUTIME, SYSCONF },
 770 #endif
 771 #ifdef _SC_DEVICE_SPECIFIC
 772     { "_POSIX_DEVICE_SPECIFIC", _SC_DEVICE_SPECIFIC, SYSCONF },
 773 #endif
 774 #ifdef _SC_DEVICE_SPECIFIC_R
 775     { "_POSIX_DEVICE_SPECIFIC_R", _SC_DEVICE_SPECIFIC_R, SYSCONF },
 776 #endif
 777 #ifdef _SC_FD_MGMT
 778     { "_POSIX_FD_MGMT", _SC_FD_MGMT, SYSCONF },
 779 #endif
 780 #ifdef _SC_FIFO
 781     { "_POSIX_FIFO", _SC_FIFO, SYSCONF },
 782 #endif
 783 #ifdef _SC_PIPE
 784     { "_POSIX_PIPE", _SC_PIPE, SYSCONF },
 785 #endif
 786 #ifdef _SC_FILE_ATTRIBUTES
 787     { "_POSIX_FILE_ATTRIBUTES", _SC_FILE_ATTRIBUTES, SYSCONF },
 788 #endif
 789 #ifdef _SC_FILE_LOCKING
 790     { "_POSIX_FILE_LOCKING", _SC_FILE_LOCKING, SYSCONF },
 791 #endif
 792 #ifdef _SC_FILE_SYSTEM
 793     { "_POSIX_FILE_SYSTEM", _SC_FILE_SYSTEM, SYSCONF },
 794 #endif
 795 #ifdef _SC_MONOTONIC_CLOCK
 796     { "_POSIX_MONOTONIC_CLOCK", _SC_MONOTONIC_CLOCK, SYSCONF },
 797 #endif
 798 #ifdef _SC_MULTI_PROCESS
 799     { "_POSIX_MULTI_PROCESS", _SC_MULTI_PROCESS, SYSCONF },
 800 #endif
 801 #ifdef _SC_SINGLE_PROCESS
 802     { "_POSIX_SINGLE_PROCESS", _SC_SINGLE_PROCESS, SYSCONF },
 803 #endif
 804 #ifdef _SC_NETWORKING
 805     { "_POSIX_NETWORKING", _SC_NETWORKING, SYSCONF },
 806 #endif
 807 #ifdef _SC_READER_WRITER_LOCKS
 808     { "_POSIX_READER_WRITER_LOCKS", _SC_READER_WRITER_LOCKS, SYSCONF },
 809 #endif
 810 #ifdef _SC_SPIN_LOCKS
 811     { "_POSIX_SPIN_LOCKS", _SC_SPIN_LOCKS, SYSCONF },
 812 #endif
 813 #ifdef _SC_REGEXP
 814     { "_POSIX_REGEXP", _SC_REGEXP, SYSCONF },
 815 #endif
 816 #ifdef _SC_REGEX_VERSION
 817     { "_REGEX_VERSION", _SC_REGEX_VERSION, SYSCONF },
 818 #endif
 819 #ifdef _SC_SHELL
 820     { "_POSIX_SHELL", _SC_SHELL, SYSCONF },
 821 #endif
 822 #ifdef _SC_SIGNALS
 823     { "_POSIX_SIGNALS", _SC_SIGNALS, SYSCONF },
 824 #endif
 825 #ifdef _SC_SPAWN
 826     { "_POSIX_SPAWN", _SC_SPAWN, SYSCONF },
 827 #endif
 828 #ifdef _SC_SPORADIC_SERVER
 829     { "_POSIX_SPORADIC_SERVER", _SC_SPORADIC_SERVER, SYSCONF },
 830 #endif
 831 #ifdef _SC_THREAD_SPORADIC_SERVER
 832     { "_POSIX_THREAD_SPORADIC_SERVER", _SC_THREAD_SPORADIC_SERVER, SYSCONF },
 833 #endif
 834 #ifdef _SC_SYSTEM_DATABASE
 835     { "_POSIX_SYSTEM_DATABASE", _SC_SYSTEM_DATABASE, SYSCONF },
 836 #endif
 837 #ifdef _SC_SYSTEM_DATABASE_R
 838     { "_POSIX_SYSTEM_DATABASE_R", _SC_SYSTEM_DATABASE_R, SYSCONF },
 839 #endif
 840 #ifdef _SC_TIMEOUTS
 841     { "_POSIX_TIMEOUTS", _SC_TIMEOUTS, SYSCONF },
 842 #endif
 843 #ifdef _SC_TYPED_MEMORY_OBJECTS
 844     { "_POSIX_TYPED_MEMORY_OBJECTS", _SC_TYPED_MEMORY_OBJECTS, SYSCONF },
 845 #endif
 846 #ifdef _SC_USER_GROUPS
 847     { "_POSIX_USER_GROUPS", _SC_USER_GROUPS, SYSCONF },
 848 #endif
 849 #ifdef _SC_USER_GROUPS_R
 850     { "_POSIX_USER_GROUPS_R", _SC_USER_GROUPS_R, SYSCONF },
 851 #endif
 852 #ifdef _SC_2_PBS
 853     { "POSIX2_PBS", _SC_2_PBS, SYSCONF },
 854 #endif
 855 #ifdef _SC_2_PBS_ACCOUNTING
 856     { "POSIX2_PBS_ACCOUNTING", _SC_2_PBS_ACCOUNTING, SYSCONF },
 857 #endif
 858 #ifdef _SC_2_PBS_LOCATE
 859     { "POSIX2_PBS_LOCATE", _SC_2_PBS_LOCATE, SYSCONF },
 860 #endif
 861 #ifdef _SC_2_PBS_TRACK
 862     { "POSIX2_PBS_TRACK", _SC_2_PBS_TRACK, SYSCONF },
 863 #endif
 864 #ifdef _SC_2_PBS_MESSAGE
 865     { "POSIX2_PBS_MESSAGE", _SC_2_PBS_MESSAGE, SYSCONF },
 866 #endif
 867 #ifdef _SC_SYMLOOP_MAX
 868     { "SYMLOOP_MAX", _SC_SYMLOOP_MAX, SYSCONF },
 869 #endif
 870 #ifdef _SC_STREAM_MAX
 871     { "STREAM_MAX", _SC_STREAM_MAX, SYSCONF },
 872 #endif
 873 #ifdef _SC_AIO_LISTIO_MAX
 874     { "AIO_LISTIO_MAX", _SC_AIO_LISTIO_MAX, SYSCONF },
 875 #endif
 876 #ifdef _SC_AIO_MAX
 877     { "AIO_MAX", _SC_AIO_MAX, SYSCONF },
 878 #endif
 879 #ifdef _SC_AIO_PRIO_DELTA_MAX
 880     { "AIO_PRIO_DELTA_MAX", _SC_AIO_PRIO_DELTA_MAX, SYSCONF },
 881 #endif
 882 #ifdef _SC_DELAYTIMER_MAX
 883     { "DELAYTIMER_MAX", _SC_DELAYTIMER_MAX, SYSCONF },
 884 #endif
 885 #ifdef _SC_HOST_NAME_MAX
 886     { "HOST_NAME_MAX", _SC_HOST_NAME_MAX, SYSCONF },
 887 #endif
 888 #ifdef _SC_LOGIN_NAME_MAX
 889     { "LOGIN_NAME_MAX", _SC_LOGIN_NAME_MAX, SYSCONF },
 890 #endif
 891 #ifdef _SC_MQ_OPEN_MAX
 892     { "MQ_OPEN_MAX", _SC_MQ_OPEN_MAX, SYSCONF },
 893 #endif
 894 #ifdef _SC_MQ_PRIO_MAX
 895     { "MQ_PRIO_MAX", _SC_MQ_PRIO_MAX, SYSCONF },
 896 #endif
 897 #ifdef _SC_DEVICE_IO
 898     { "_POSIX_DEVICE_IO", _SC_DEVICE_IO, SYSCONF },
 899 #endif
 900 #ifdef _SC_TRACE
 901     { "_POSIX_TRACE", _SC_TRACE, SYSCONF },
 902 #endif
 903 #ifdef _SC_TRACE_EVENT_FILTER
 904     { "_POSIX_TRACE_EVENT_FILTER", _SC_TRACE_EVENT_FILTER, SYSCONF },
 905 #endif
 906 #ifdef _SC_TRACE_INHERIT
 907     { "_POSIX_TRACE_INHERIT", _SC_TRACE_INHERIT, SYSCONF },
 908 #endif
 909 #ifdef _SC_TRACE_LOG
 910     { "_POSIX_TRACE_LOG", _SC_TRACE_LOG, SYSCONF },
 911 #endif
 912 #ifdef _SC_RTSIG_MAX
 913     { "RTSIG_MAX", _SC_RTSIG_MAX, SYSCONF },
 914 #endif
 915 #ifdef _SC_SEM_NSEMS_MAX
 916     { "SEM_NSEMS_MAX", _SC_SEM_NSEMS_MAX, SYSCONF },
 917 #endif
 918 #ifdef _SC_SEM_VALUE_MAX
 919     { "SEM_VALUE_MAX", _SC_SEM_VALUE_MAX, SYSCONF },
 920 #endif
 921 #ifdef _SC_SIGQUEUE_MAX
 922     { "SIGQUEUE_MAX", _SC_SIGQUEUE_MAX, SYSCONF },
 923 #endif
 924 #ifdef _PC_FILESIZEBITS
 925     { "FILESIZEBITS", _PC_FILESIZEBITS, PATHCONF },
 926 #endif
 927 #ifdef _PC_ALLOC_SIZE_MIN
 928     { "POSIX_ALLOC_SIZE_MIN", _PC_ALLOC_SIZE_MIN, PATHCONF },
 929 #endif
 930 #ifdef _PC_REC_INCR_XFER_SIZE
 931     { "POSIX_REC_INCR_XFER_SIZE", _PC_REC_INCR_XFER_SIZE, PATHCONF },
 932 #endif
 933 #ifdef _PC_REC_MAX_XFER_SIZE
 934     { "POSIX_REC_MAX_XFER_SIZE", _PC_REC_MAX_XFER_SIZE, PATHCONF },
 935 #endif
 936 #ifdef _PC_REC_MIN_XFER_SIZE
 937     { "POSIX_REC_MIN_XFER_SIZE", _PC_REC_MIN_XFER_SIZE, PATHCONF },
 938 #endif
 939 #ifdef _PC_REC_XFER_ALIGN
 940     { "POSIX_REC_XFER_ALIGN", _PC_REC_XFER_ALIGN, PATHCONF },
 941 #endif
 942 #ifdef _PC_SYMLINK_MAX
 943     { "SYMLINK_MAX", _PC_SYMLINK_MAX, PATHCONF },
 944 #endif
 945 #ifdef _CS_GNU_LIBC_VERSION
 946     { "GNU_LIBC_VERSION", _CS_GNU_LIBC_VERSION, CONFSTR },
 947 #endif
 948 #ifdef _CS_GNU_LIBPTHREAD_VERSION
 949     { "GNU_LIBPTHREAD_VERSION", _CS_GNU_LIBPTHREAD_VERSION, CONFSTR },
 950 #endif
 951 #ifdef _PC_2_SYMLINKS
 952     { "POSIX2_SYMLINKS", _PC_2_SYMLINKS, PATHCONF },
 953 #endif
 954
 955 #ifdef _SC_LEVEL1_ICACHE_SIZE
 956     { "LEVEL1_ICACHE_SIZE", _SC_LEVEL1_ICACHE_SIZE, SYSCONF },
 957 #endif
 958 #ifdef _SC_LEVEL1_ICACHE_ASSOC
 959     { "LEVEL1_ICACHE_ASSOC", _SC_LEVEL1_ICACHE_ASSOC, SYSCONF },
 960 #endif
 961 #ifdef _SC_LEVEL1_ICACHE_LINESIZE
 962     { "LEVEL1_ICACHE_LINESIZE", _SC_LEVEL1_ICACHE_LINESIZE, SYSCONF },
 963 #endif
 964 #ifdef _SC_LEVEL1_DCACHE_SIZE
 965     { "LEVEL1_DCACHE_SIZE", _SC_LEVEL1_DCACHE_SIZE, SYSCONF },
 966 #endif
 967 #ifdef _SC_LEVEL1_DCACHE_ASSOC
 968     { "LEVEL1_DCACHE_ASSOC", _SC_LEVEL1_DCACHE_ASSOC, SYSCONF },
 969 #endif
 970 #ifdef _SC_LEVEL1_DCACHE_LINESIZE
 971     { "LEVEL1_DCACHE_LINESIZE", _SC_LEVEL1_DCACHE_LINESIZE, SYSCONF },
 972 #endif
 973 #ifdef _SC_LEVEL2_CACHE_SIZE
 974     { "LEVEL2_CACHE_SIZE", _SC_LEVEL2_CACHE_SIZE, SYSCONF },
 975 #endif
 976 #ifdef _SC_LEVEL2_CACHE_ASSOC
 977     { "LEVEL2_CACHE_ASSOC", _SC_LEVEL2_CACHE_ASSOC, SYSCONF },
 978 #endif
 979 #ifdef _SC_LEVEL2_CACHE_LINESIZE
 980     { "LEVEL2_CACHE_LINESIZE", _SC_LEVEL2_CACHE_LINESIZE, SYSCONF },
 981 #endif
 982 #ifdef _SC_LEVEL3_CACHE_SIZE
 983     { "LEVEL3_CACHE_SIZE", _SC_LEVEL3_CACHE_SIZE, SYSCONF },
 984 #endif
 985 #ifdef _SC_LEVEL3_CACHE_ASSOC
 986     { "LEVEL3_CACHE_ASSOC", _SC_LEVEL3_CACHE_ASSOC, SYSCONF },
 987 #endif
 988 #ifdef _SC_LEVEL3_CACHE_LINESIZE
 989     { "LEVEL3_CACHE_LINESIZE", _SC_LEVEL3_CACHE_LINESIZE, SYSCONF },
 990 #endif
 991 #ifdef _SC_LEVEL4_CACHE_SIZE
 992     { "LEVEL4_CACHE_SIZE", _SC_LEVEL4_CACHE_SIZE, SYSCONF },
 993 #endif
 994 #ifdef _SC_LEVEL4_CACHE_ASSOC
 995     { "LEVEL4_CACHE_ASSOC", _SC_LEVEL4_CACHE_ASSOC, SYSCONF },
 996 #endif
 997 #ifdef _SC_LEVEL4_CACHE_LINESIZE
 998     { "LEVEL4_CACHE_LINESIZE", _SC_LEVEL4_CACHE_LINESIZE, SYSCONF },
 999 #endif
1000
1001 #ifdef _SC_IPV6
1002     { "IPV6", _SC_IPV6, SYSCONF },
1003 #endif
1004 #ifdef _SC_RAW_SOCKETS
1005     { "RAW_SOCKETS", _SC_RAW_SOCKETS, SYSCONF },
1006 #endif
1007
1008     { NULL, 0, SYSCONF }
1009   };
1010
1011
1012 static const struct { const char *name; int num; } specs[] =
1013   {
1014     { "XBS5_ILP32_OFF32", _SC_XBS5_ILP32_OFF32 },
1015     { "XBS5_ILP32_OFFBIG", _SC_XBS5_ILP32_OFFBIG },
1016     { "XBS5_LP64_OFF64", _SC_XBS5_LP64_OFF64 },
1017     { "XBS5_LPBIG_OFFBIG", _SC_XBS5_LPBIG_OFFBIG },
1018     { "POSIX_V6_ILP32_OFF32", _SC_V6_ILP32_OFF32 },
1019     { "POSIX_V6_ILP32_OFFBIG", _SC_V6_ILP32_OFFBIG },
1020     { "POSIX_V6_LP64_OFF64", _SC_V6_LP64_OFF64 },
1021     { "POSIX_V6_LPBIG_OFFBIG", _SC_V6_LPBIG_OFFBIG },
1022     { "POSIX_V7_ILP32_OFF32", _SC_V7_ILP32_OFF32 },
1023     { "POSIX_V7_ILP32_OFFBIG", _SC_V7_ILP32_OFFBIG },
1024     { "POSIX_V7_LP64_OFF64", _SC_V7_LP64_OFF64 },
1025     { "POSIX_V7_LPBIG_OFFBIG", _SC_V7_LPBIG_OFFBIG },
1026   };
1027 static const int nspecs = sizeof (specs) / sizeof (specs[0]);
1028
1029 extern const char *__progname;
1030
1031
1032 static void
1033 usage (void)
1034 {
1035   fprintf (stderr,
1036            _("Usage: %s [-v specification] variable_name [pathname]\n"),
1037            __progname);
1038   fprintf (stderr,
1039            _("       %s -a [pathname]\n"), __progname);
1040   exit (2);
1041 }
1042
1043
1044 static void
1045 print_all (const char *path)
1046 {
1047   register const struct conf *c;
1048   size_t clen;
1049   long int value;
1050   char *cvalue;
1051   for (c = vars; c->name != NULL; ++c) {
1052     printf("%-35s", c->name);
1053     switch (c->call) {
1054       case PATHCONF:
1055         value = pathconf (path, c->call_name);
1056         if (value != -1) {
1057           printf("%ld", value);
1058         }
1059         printf("\n");
1060         break;
1061       case SYSCONF:
1062         value = sysconf (c->call_name);
1063         if (value == -1l) {
1064           if (c->call_name == _SC_UINT_MAX
1065             || c->call_name == _SC_ULONG_MAX)
1066             printf ("%lu", value);
1067         }
1068         else {
1069           printf ("%ld", value);
1070         }
1071         printf ("\n");
1072         break;
1073       case CONFSTR:
1074         clen = confstr (c->call_name, (char *) NULL, 0);
1075         cvalue = (char *) malloc (clen);
1076         if (cvalue == NULL)
1077           error (3, 0, _("memory exhausted"));
1078         if (confstr (c->call_name, cvalue, clen) != clen)
1079           error (3, errno, "confstr");
1080         printf ("%.*s\n", (int) clen, cvalue);
1081         free (cvalue);
1082         break;
1083     }
1084   }
1085   exit (0);
1086 }
1087
1088 int
1089 main (int argc, char *argv[])
1090 {
1091   register const struct conf *c;
1092
1093   /* Set locale.  Do not set LC_ALL because the other categories must
1094      not be affected (according to POSIX.2).  */
1095   setlocale (LC_CTYPE, "");
1096   setlocale (LC_MESSAGES, "");
1097
1098   /* Initialize the message catalog.  */
1099   textdomain (PACKAGE);
1100
1101   if (argc > 1 && strcmp (argv[1], "--version") == 0)
1102     {
1103       printf ("getconf (GNU %s) %s\n", PACKAGE, VERSION);
1104       printf (gettext ("\
1105 Copyright (C) %s Free Software Foundation, Inc.\n\
1106 This is free software; see the source for copying conditions.  There is NO\n\
1107 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\
1108 "), "2009");
1109       printf (gettext ("Written by %s.\n"), "Roland McGrath");
1110       return 0;
1111     }
1112
1113   if (argc > 1 && strcmp (argv[1], "--help") == 0)
1114     {
1115       printf (gettext ("\
1116 Usage: getconf [-v SPEC] VAR\n\
1117   or:  getconf [-v SPEC] PATH_VAR PATH\n\
1118 \n\
1119 Get the configuration value for variable VAR, or for variable PATH_VAR\n\
1120 for path PATH.  If SPEC is given, give values for compilation\n\
1121 environment SPEC.\n\n"));
1122       fputs (gettext ("For bug reporting instructions, please see:\n\
1123 <http://www.gnu.org/software/libc/bugs.html>.\n"), stdout);
1124       return 0;
1125     }
1126
1127   const char *getconf_dir = getenv ("GETCONF_DIR") ?: GETCONF_DIR;
1128   size_t getconf_dirlen = strlen (getconf_dir);
1129
1130   const char *spec = NULL;
1131   char buf[sizeof "POSIX_V6_LPBIG_OFFBIG"];
1132   char *argv0 = argv[0];
1133   if (argc > 1 && strncmp (argv[1], "-v", 2) == 0)
1134     {
1135       if (argv[1][2] == '\0')
1136         {
1137           if (argc < 3)
1138             usage ();
1139
1140           spec = argv[2];
1141           argv += 2;
1142           argc -= 2;
1143         }
1144       else
1145         {
1146           spec = &argv[1][2];
1147           argv += 1;
1148           argc += 1;
1149         }
1150     }
1151   else
1152     {
1153       char default_name[getconf_dirlen + sizeof "/default"];
1154       memcpy (mempcpy (default_name, getconf_dir, getconf_dirlen),
1155               "/default", sizeof "/default");
1156       int len = readlink (default_name, buf, sizeof buf - 1);
1157       if (len > 0)
1158         {
1159           buf[len] = '\0';
1160           spec = buf;
1161         }
1162     }
1163
1164   /* Check for the specifications we know.  */
1165   if (spec != NULL)
1166     {
1167       int i;
1168       for (i = 0; i < nspecs; ++i)
1169         if (strcmp (spec, specs[i].name) == 0)
1170           break;
1171
1172       if (i == nspecs)
1173         error (2, 0, _("unknown specification \"%s\""), spec);
1174
1175       switch (specs[i].num)
1176         {
1177 #ifndef _XBS5_ILP32_OFF32
1178           case _SC_XBS5_ILP32_OFF32:
1179 #endif
1180 #ifndef _XBS5_ILP32_OFFBIG
1181           case _SC_XBS5_ILP32_OFFBIG:
1182 #endif
1183 #ifndef _XBS5_LP64_OFF64
1184           case _SC_XBS5_LP64_OFF64:
1185 #endif
1186 #ifndef _XBS5_LPBIG_OFFBIG
1187           case _SC_XBS5_LPBIG_OFFBIG:
1188 #endif
1189 #ifndef _POSIX_V6_ILP32_OFF32
1190           case _SC_V6_ILP32_OFF32:
1191 #endif
1192 #ifndef _POSIX_V6_ILP32_OFFBIG
1193           case _SC_V6_ILP32_OFFBIG:
1194 #endif
1195 #ifndef _POSIX_V6_LP64_OFF64
1196           case _SC_V6_LP64_OFF64:
1197 #endif
1198 #ifndef _POSIX_V6_LPBIG_OFFBIG
1199           case _SC_V6_LPBIG_OFFBIG:
1200 #endif
1201 #ifndef _POSIX_V7_ILP32_OFF32
1202           case _SC_V7_ILP32_OFF32:
1203 #endif
1204 #ifndef _POSIX_V7_ILP32_OFFBIG
1205           case _SC_V7_ILP32_OFFBIG:
1206 #endif
1207 #ifndef _POSIX_V7_LP64_OFF64
1208           case _SC_V7_LP64_OFF64:
1209 #endif
1210 #ifndef _POSIX_V7_LPBIG_OFFBIG
1211           case _SC_V7_LPBIG_OFFBIG:
1212 #endif
1213             {
1214               const char *args[argc + 3];
1215               size_t spec_len = strlen (spec);
1216               char getconf_name[getconf_dirlen + 1 + spec_len + 1];
1217               memcpy (mempcpy (mempcpy (getconf_name, getconf_dir,
1218                                         getconf_dirlen),
1219                                "/", 1), spec, spec_len + 1);
1220               args[0] = argv0;
1221               args[1] = "-v";
1222               args[2] = spec;
1223               memcpy (&args[3], &argv[1], argc * sizeof (argv[1]));
1224               execv (getconf_name, (char * const *) args);
1225               error (4, errno, _("Couldn't execute %s"), getconf_name);
1226             }
1227           default:
1228             break;
1229         }
1230     }
1231
1232   if (argc > 1 && strcmp (argv[1], "-a") == 0)
1233     {
1234       if (argc == 2)
1235         print_all ("/");
1236       else if (argc == 3)
1237         print_all (argv[2]);
1238       else
1239         usage ();
1240     }
1241
1242   int ai = 1;
1243   if (argc > ai && strcmp (argv[ai], "--") == 0)
1244     ++ai;
1245
1246   if (argc - ai < 1 || argc - ai > 2)
1247     usage ();
1248
1249   for (c = vars; c->name != NULL; ++c)
1250     if (strcmp (c->name, argv[ai]) == 0
1251         || (strncmp (c->name, "_POSIX_", 7) == 0
1252             && strcmp (c->name + 7, argv[ai]) == 0))
1253       {
1254         long int value;
1255         size_t clen;
1256         char *cvalue;
1257         switch (c->call)
1258           {
1259           case PATHCONF:
1260             if (argc - ai < 2)
1261               usage ();
1262             errno = 0;
1263             value = pathconf (argv[ai + 1], c->call_name);
1264             if (value == -1)
1265               {
1266                 if (errno)
1267                   error (3, errno, "pathconf: %s", argv[ai + 1]);
1268                 else
1269                   puts (_("undefined"));
1270               }
1271             else
1272               printf ("%ld\n", value);
1273             exit (0);
1274
1275           case SYSCONF:
1276             if (argc - ai > 1)
1277               usage ();
1278             value = sysconf (c->call_name);
1279             if (value == -1l)
1280               {
1281                 if (c->call_name == _SC_UINT_MAX
1282                     || c->call_name == _SC_ULONG_MAX)
1283                   printf ("%lu\n", value);
1284                 else
1285                   puts (_("undefined"));
1286               }
1287             else
1288               printf ("%ld\n", value);
1289             exit (0);
1290
1291           case CONFSTR:
1292             if (argc - ai > 1)
1293               usage ();
1294             clen = confstr (c->call_name, (char *) NULL, 0);
1295             cvalue = (char *) malloc (clen);
1296             if (cvalue == NULL)
1297               error (3, 0, _("memory exhausted"));
1298
1299             if (confstr (c->call_name, cvalue, clen) != clen)
1300               error (3, errno, "confstr");
1301
1302             printf ("%.*s\n", (int) clen, cvalue);
1303             exit (0);
1304           }
1305       }
1306
1307   error (2, 0, _("Unrecognized variable `%s'"), argv[ai]);
1308   /* NOTREACHED */
1309   return 2;
1310 }