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_PROCESS_SHARED
 359     { "_POSIX_THREAD_PROCESS_SHARED", _SC_THREAD_PROCESS_SHARED, SYSCONF },
 360 #endif
 361 #ifdef _SC_THREAD_SAFE_FUNCTIONS
 362     { "_POSIX_THREAD_SAFE_FUNCTIONS", _SC_THREAD_SAFE_FUNCTIONS, SYSCONF },
 363 #endif
 364 #ifdef _SC_TIMERS
 365     { "_POSIX_TIMERS", _SC_TIMERS, SYSCONF },
 366 #endif
 367 #ifdef _SC_TIMER_MAX
 368     { "TIMER_MAX", _SC_TIMER_MAX, SYSCONF },
 369 #endif
 370 #ifdef _SC_TZNAME_MAX
 371     { "_POSIX_TZNAME_MAX", _SC_TZNAME_MAX, SYSCONF },
 372 #endif
 373 #ifdef _SC_VERSION
 374     { "_POSIX_VERSION", _SC_VERSION, SYSCONF },
 375 #endif
 376 #ifdef _SC_T_IOV_MAX
 377     { "_T_IOV_MAX", _SC_T_IOV_MAX, SYSCONF },
 378 #endif
 379 #ifdef _SC_XOPEN_CRYPT
 380     { "_XOPEN_CRYPT", _SC_XOPEN_CRYPT, SYSCONF },
 381 #endif
 382 #ifdef _SC_XOPEN_ENH_I18N
 383     { "_XOPEN_ENH_I18N", _SC_XOPEN_ENH_I18N, SYSCONF },
 384 #endif
 385 #ifdef _SC_XOPEN_LEGACY
 386     { "_XOPEN_LEGACY", _SC_XOPEN_LEGACY, SYSCONF },
 387 #endif
 388 #ifdef _SC_XOPEN_REALTIME
 389     { "_XOPEN_REALTIME", _SC_XOPEN_REALTIME, SYSCONF },
 390 #endif
 391 #ifdef _SC_XOPEN_REALTIME_THREADS
 392     { "_XOPEN_REALTIME_THREADS", _SC_XOPEN_REALTIME_THREADS, SYSCONF },
 393 #endif
 394 #ifdef _SC_XOPEN_SHM
 395     { "_XOPEN_SHM", _SC_XOPEN_SHM, SYSCONF },
 396 #endif
 397 #ifdef _SC_XOPEN_UNIX
 398     { "_XOPEN_UNIX", _SC_XOPEN_UNIX, SYSCONF },
 399 #endif
 400 #ifdef _SC_XOPEN_VERSION
 401     { "_XOPEN_VERSION", _SC_XOPEN_VERSION, SYSCONF },
 402 #endif
 403 #ifdef _SC_XOPEN_XCU_VERSION
 404     { "_XOPEN_XCU_VERSION", _SC_XOPEN_XCU_VERSION, SYSCONF },
 405 #endif
 406 #ifdef _SC_XOPEN_XPG2
 407     { "_XOPEN_XPG2", _SC_XOPEN_XPG2, SYSCONF },
 408 #endif
 409 #ifdef _SC_XOPEN_XPG3
 410     { "_XOPEN_XPG3", _SC_XOPEN_XPG3, SYSCONF },
 411 #endif
 412 #ifdef _SC_XOPEN_XPG4
 413     { "_XOPEN_XPG4", _SC_XOPEN_XPG4, SYSCONF },
 414 #endif
 415     /* POSIX.2  */
 416 #ifdef _SC_BC_BASE_MAX
 417     { "BC_BASE_MAX", _SC_BC_BASE_MAX, SYSCONF },
 418 #endif
 419 #ifdef _SC_BC_DIM_MAX
 420     { "BC_DIM_MAX", _SC_BC_DIM_MAX, SYSCONF },
 421 #endif
 422 #ifdef _SC_BC_SCALE_MAX
 423     { "BC_SCALE_MAX", _SC_BC_SCALE_MAX, SYSCONF },
 424 #endif
 425 #ifdef _SC_BC_STRING_MAX
 426     { "BC_STRING_MAX", _SC_BC_STRING_MAX, SYSCONF },
 427 #endif
 428     { "CHARCLASS_NAME_MAX", _SC_CHARCLASS_NAME_MAX, SYSCONF },
 429 #ifdef _SC_COLL_WEIGHTS_MAX
 430     { "COLL_WEIGHTS_MAX", _SC_COLL_WEIGHTS_MAX, SYSCONF },
 431 #endif
 432 #ifdef _SC_EQUIV_CLASS_MAX
 433     { "EQUIV_CLASS_MAX", _SC_EQUIV_CLASS_MAX, SYSCONF },
 434 #endif
 435 #ifdef _SC_EXPR_NEST_MAX
 436     { "EXPR_NEST_MAX", _SC_EXPR_NEST_MAX, SYSCONF },
 437 #endif
 438 #ifdef _SC_LINE_MAX
 439     { "LINE_MAX", _SC_LINE_MAX, SYSCONF },
 440 #endif
 441 #ifdef _SC_BC_BASE_MAX
 442     { "POSIX2_BC_BASE_MAX", _SC_BC_BASE_MAX, SYSCONF },
 443 #endif
 444 #ifdef _SC_BC_DIM_MAX
 445     { "POSIX2_BC_DIM_MAX", _SC_BC_DIM_MAX, SYSCONF },
 446 #endif
 447 #ifdef _SC_BC_SCALE_MAX
 448     { "POSIX2_BC_SCALE_MAX", _SC_BC_SCALE_MAX, SYSCONF },
 449 #endif
 450 #ifdef _SC_BC_STRING_MAX
 451     { "POSIX2_BC_STRING_MAX", _SC_BC_STRING_MAX, SYSCONF },
 452 #endif
 453 #ifdef _SC_2_CHAR_TERM
 454     { "POSIX2_CHAR_TERM", _SC_2_CHAR_TERM, SYSCONF },
 455 #endif
 456 #ifdef _SC_COLL_WEIGHTS_MAX
 457     { "POSIX2_COLL_WEIGHTS_MAX", _SC_COLL_WEIGHTS_MAX, SYSCONF },
 458 #endif
 459 #ifdef _SC_2_C_BIND
 460     { "POSIX2_C_BIND", _SC_2_C_BIND, SYSCONF },
 461 #endif
 462 #ifdef _SC_2_C_DEV
 463     { "POSIX2_C_DEV", _SC_2_C_DEV, SYSCONF },
 464 #endif
 465 #ifdef _SC_2_C_VERSION
 466     { "POSIX2_C_VERSION", _SC_2_C_VERSION, SYSCONF },
 467 #endif
 468 #ifdef _SC_EXPR_NEST_MAX
 469     { "POSIX2_EXPR_NEST_MAX", _SC_EXPR_NEST_MAX, SYSCONF },
 470 #endif
 471 #ifdef _SC_2_FORT_DEV
 472     { "POSIX2_FORT_DEV", _SC_2_FORT_DEV, SYSCONF },
 473 #endif
 474 #ifdef _SC_2_FORT_RUN
 475     { "POSIX2_FORT_RUN", _SC_2_FORT_RUN, SYSCONF },
 476 #endif
 477 #ifdef _SC_LINE_MAX
 478     { "_POSIX2_LINE_MAX", _SC_LINE_MAX, SYSCONF },
 479 #endif
 480 #ifdef _SC_2_LOCALEDEF
 481     { "POSIX2_LOCALEDEF", _SC_2_LOCALEDEF, SYSCONF },
 482 #endif
 483 #ifdef _SC_RE_DUP_MAX
 484     { "POSIX2_RE_DUP_MAX", _SC_RE_DUP_MAX, SYSCONF },
 485 #endif
 486 #ifdef _SC_2_SW_DEV
 487     { "POSIX2_SW_DEV", _SC_2_SW_DEV, SYSCONF },
 488 #endif
 489 #ifdef _SC_2_UPE
 490     { "POSIX2_UPE", _SC_2_UPE, SYSCONF },
 491 #endif
 492 #ifdef _SC_2_VERSION
 493     { "POSIX2_VERSION", _SC_2_VERSION, SYSCONF },
 494 #endif
 495 #ifdef _SC_RE_DUP_MAX
 496     { "RE_DUP_MAX", _SC_RE_DUP_MAX, SYSCONF },
 497 #endif
 498
 499 #ifdef _CS_PATH
 500     { "PATH", _CS_PATH, CONFSTR },
 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 _CS_V5_WIDTH_RESTRICTED_ENVS
 532     { "_XBS5_WIDTH_RESTRICTED_ENVS", _CS_V5_WIDTH_RESTRICTED_ENVS, CONFSTR },
 533     { "XBS5_WIDTH_RESTRICTED_ENVS", _CS_V5_WIDTH_RESTRICTED_ENVS, CONFSTR },
 534 #endif
 535
 536 #ifdef _SC_XBS5_ILP32_OFF32
 537     { "_XBS5_ILP32_OFF32", _SC_XBS5_ILP32_OFF32, SYSCONF },
 538 #endif
 539 #ifdef _CS_XBS5_ILP32_OFF32_CFLAGS
 540     { "XBS5_ILP32_OFF32_CFLAGS", _CS_XBS5_ILP32_OFF32_CFLAGS, CONFSTR },
 541 #endif
 542 #ifdef _CS_XBS5_ILP32_OFF32_LDFLAGS
 543     { "XBS5_ILP32_OFF32_LDFLAGS", _CS_XBS5_ILP32_OFF32_LDFLAGS, CONFSTR },
 544 #endif
 545 #ifdef _CS_XBS5_ILP32_OFF32_LIBS
 546     { "XBS5_ILP32_OFF32_LIBS", _CS_XBS5_ILP32_OFF32_LIBS, CONFSTR },
 547 #endif
 548 #ifdef _CS_XBS5_ILP32_OFF32_LINTFLAGS
 549     { "XBS5_ILP32_OFF32_LINTFLAGS", _CS_XBS5_ILP32_OFF32_LINTFLAGS, CONFSTR },
 550 #endif
 551
 552 #ifdef _SC_XBS5_ILP32_OFFBIG
 553     { "_XBS5_ILP32_OFFBIG", _SC_XBS5_ILP32_OFFBIG, SYSCONF },
 554 #endif
 555 #ifdef _CS_XBS5_ILP32_OFFBIG_CFLAGS
 556     { "XBS5_ILP32_OFFBIG_CFLAGS", _CS_XBS5_ILP32_OFFBIG_CFLAGS, CONFSTR },
 557 #endif
 558 #ifdef _CS_XBS5_ILP32_OFFBIG_LDFLAGS
 559     { "XBS5_ILP32_OFFBIG_LDFLAGS", _CS_XBS5_ILP32_OFFBIG_LDFLAGS, CONFSTR },
 560 #endif
 561 #ifdef _CS_XBS5_ILP32_OFFBIG_LIBS
 562     { "XBS5_ILP32_OFFBIG_LIBS", _CS_XBS5_ILP32_OFFBIG_LIBS, CONFSTR },
 563 #endif
 564 #ifdef _CS_XBS5_ILP32_OFFBIG_LINTFLAGS
 565     { "XBS5_ILP32_OFFBIG_LINTFLAGS", _CS_XBS5_ILP32_OFFBIG_LINTFLAGS, CONFSTR },
 566 #endif
 567
 568 #ifdef _SC_XBS5_LP64_OFF64
 569     { "_XBS5_LP64_OFF64", _SC_XBS5_LP64_OFF64, SYSCONF },
 570 #endif
 571 #ifdef _CS_XBS5_LP64_OFF64_CFLAGS
 572     { "XBS5_LP64_OFF64_CFLAGS", _CS_XBS5_LP64_OFF64_CFLAGS, CONFSTR },
 573 #endif
 574 #ifdef _CS_XBS5_LP64_OFF64_LDFLAGS
 575     { "XBS5_LP64_OFF64_LDFLAGS", _CS_XBS5_LP64_OFF64_LDFLAGS, CONFSTR },
 576 #endif
 577 #ifdef _CS_XBS5_LP64_OFF64_LIBS
 578     { "XBS5_LP64_OFF64_LIBS", _CS_XBS5_LP64_OFF64_LIBS, CONFSTR },
 579 #endif
 580 #ifdef _CS_XBS5_LP64_OFF64_LINTFLAGS
 581     { "XBS5_LP64_OFF64_LINTFLAGS", _CS_XBS5_LP64_OFF64_LINTFLAGS, CONFSTR },
 582 #endif
 583
 584 #ifdef _SC_XBS5_LPBIG_OFFBIG
 585     { "_XBS5_LPBIG_OFFBIG", _SC_XBS5_LPBIG_OFFBIG, SYSCONF },
 586 #endif
 587 #ifdef _CS_XBS5_LPBIG_OFFBIG_CFLAGS
 588     { "XBS5_LPBIG_OFFBIG_CFLAGS", _CS_XBS5_LPBIG_OFFBIG_CFLAGS, CONFSTR },
 589 #endif
 590 #ifdef _CS_XBS5_LPBIG_OFFBIG_LDFLAGS
 591     { "XBS5_LPBIG_OFFBIG_LDFLAGS", _CS_XBS5_LPBIG_OFFBIG_LDFLAGS, CONFSTR },
 592 #endif
 593 #ifdef _CS_XBS5_LPBIG_OFFBIG_LIBS
 594     { "XBS5_LPBIG_OFFBIG_LIBS", _CS_XBS5_LPBIG_OFFBIG_LIBS, CONFSTR },
 595 #endif
 596 #ifdef _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS
 597     { "XBS5_LPBIG_OFFBIG_LINTFLAGS", _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS, CONFSTR },
 598 #endif
 599
 600 #ifdef _SC_V6_ILP32_OFF32
 601     { "_POSIX_V6_ILP32_OFF32", _SC_V6_ILP32_OFF32, SYSCONF },
 602 #endif
 603 #ifdef _CS_POSIX_V6_ILP32_OFF32_CFLAGS
 604     { "POSIX_V6_ILP32_OFF32_CFLAGS", _CS_POSIX_V6_ILP32_OFF32_CFLAGS, CONFSTR },
 605 #endif
 606 #ifdef _CS_POSIX_V6_ILP32_OFF32_LDFLAGS
 607     { "POSIX_V6_ILP32_OFF32_LDFLAGS", _CS_POSIX_V6_ILP32_OFF32_LDFLAGS, CONFSTR },
 608 #endif
 609 #ifdef _CS_POSIX_V6_ILP32_OFF32_LIBS
 610     { "POSIX_V6_ILP32_OFF32_LIBS", _CS_POSIX_V6_ILP32_OFF32_LIBS, CONFSTR },
 611 #endif
 612 #ifdef _CS_POSIX_V6_ILP32_OFF32_LINTFLAGS
 613     { "POSIX_V6_ILP32_OFF32_LINTFLAGS", _CS_POSIX_V6_ILP32_OFF32_LINTFLAGS, CONFSTR },
 614 #endif
 615
 616 #ifdef _CS_V6_WIDTH_RESTRICTED_ENVS
 617     { "_POSIX_V6_WIDTH_RESTRICTED_ENVS", _CS_V6_WIDTH_RESTRICTED_ENVS, CONFSTR },
 618     { "POSIX_V6_WIDTH_RESTRICTED_ENVS", _CS_V6_WIDTH_RESTRICTED_ENVS, CONFSTR },
 619 #endif
 620
 621 #ifdef _SC_V6_ILP32_OFFBIG
 622     { "_POSIX_V6_ILP32_OFFBIG", _SC_V6_ILP32_OFFBIG, SYSCONF },
 623 #endif
 624 #ifdef _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS
 625     { "POSIX_V6_ILP32_OFFBIG_CFLAGS", _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS, CONFSTR },
 626 #endif
 627 #ifdef _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS
 628     { "POSIX_V6_ILP32_OFFBIG_LDFLAGS", _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS, CONFSTR },
 629 #endif
 630 #ifdef _CS_POSIX_V6_ILP32_OFFBIG_LIBS
 631     { "POSIX_V6_ILP32_OFFBIG_LIBS", _CS_POSIX_V6_ILP32_OFFBIG_LIBS, CONFSTR },
 632 #endif
 633 #ifdef _CS_POSIX_V6_ILP32_OFFBIG_LINTFLAGS
 634     { "POSIX_V6_ILP32_OFFBIG_LINTFLAGS", _CS_POSIX_V6_ILP32_OFFBIG_LINTFLAGS, CONFSTR },
 635 #endif
 636
 637 #ifdef _SC_V6_LP64_OFF64
 638     { "_POSIX_V6_LP64_OFF64", _SC_V6_LP64_OFF64, SYSCONF },
 639 #endif
 640 #ifdef _CS_POSIX_V6_LP64_OFF64_CFLAGS
 641     { "POSIX_V6_LP64_OFF64_CFLAGS", _CS_POSIX_V6_LP64_OFF64_CFLAGS, CONFSTR },
 642 #endif
 643 #ifdef _CS_POSIX_V6_LP64_OFF64_LDFLAGS
 644     { "POSIX_V6_LP64_OFF64_LDFLAGS", _CS_POSIX_V6_LP64_OFF64_LDFLAGS, CONFSTR },
 645 #endif
 646 #ifdef _CS_POSIX_V6_LP64_OFF64_LIBS
 647     { "POSIX_V6_LP64_OFF64_LIBS", _CS_POSIX_V6_LP64_OFF64_LIBS, CONFSTR },
 648 #endif
 649 #ifdef _CS_POSIX_V6_LP64_OFF64_LINTFLAGS
 650     { "POSIX_V6_LP64_OFF64_LINTFLAGS", _CS_POSIX_V6_LP64_OFF64_LINTFLAGS, CONFSTR },
 651 #endif
 652
 653 #ifdef _SC_V6_LPBIG_OFFBIG
 654     { "_POSIX_V6_LPBIG_OFFBIG", _SC_V6_LPBIG_OFFBIG, SYSCONF },
 655 #endif
 656 #ifdef _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS
 657     { "POSIX_V6_LPBIG_OFFBIG_CFLAGS", _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS, CONFSTR },
 658 #endif
 659 #ifdef _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS
 660     { "POSIX_V6_LPBIG_OFFBIG_LDFLAGS", _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS, CONFSTR },
 661 #endif
 662 #ifdef _CS_POSIX_V6_LPBIG_OFFBIG_LIBS
 663     { "POSIX_V6_LPBIG_OFFBIG_LIBS", _CS_POSIX_V6_LPBIG_OFFBIG_LIBS, CONFSTR },
 664 #endif
 665 #ifdef _CS_POSIX_V6_LPBIG_OFFBIG_LINTFLAGS
 666     { "POSIX_V6_LPBIG_OFFBIG_LINTFLAGS", _CS_POSIX_V6_LPBIG_OFFBIG_LINTFLAGS, CONFSTR },
 667 #endif
 668
 669 #ifdef _SC_V7_ILP32_OFF32
 670     { "_POSIX_V7_ILP32_OFF32", _SC_V7_ILP32_OFF32, SYSCONF },
 671 #endif
 672 #ifdef _CS_POSIX_V7_ILP32_OFF32_CFLAGS
 673     { "POSIX_V7_ILP32_OFF32_CFLAGS", _CS_POSIX_V7_ILP32_OFF32_CFLAGS, CONFSTR },
 674 #endif
 675 #ifdef _CS_POSIX_V7_ILP32_OFF32_LDFLAGS
 676     { "POSIX_V7_ILP32_OFF32_LDFLAGS", _CS_POSIX_V7_ILP32_OFF32_LDFLAGS, CONFSTR },
 677 #endif
 678 #ifdef _CS_POSIX_V7_ILP32_OFF32_LIBS
 679     { "POSIX_V7_ILP32_OFF32_LIBS", _CS_POSIX_V7_ILP32_OFF32_LIBS, CONFSTR },
 680 #endif
 681 #ifdef _CS_POSIX_V7_ILP32_OFF32_LINTFLAGS
 682     { "POSIX_V7_ILP32_OFF32_LINTFLAGS", _CS_POSIX_V7_ILP32_OFF32_LINTFLAGS, CONFSTR },
 683 #endif
 684
 685 #ifdef _CS_V7_WIDTH_RESTRICTED_ENVS
 686     { "_POSIX_V7_WIDTH_RESTRICTED_ENVS", _CS_V7_WIDTH_RESTRICTED_ENVS, CONFSTR },
 687     { "POSIX_V7_WIDTH_RESTRICTED_ENVS", _CS_V7_WIDTH_RESTRICTED_ENVS, CONFSTR },
 688 #endif
 689
 690 #ifdef _SC_V7_ILP32_OFFBIG
 691     { "_POSIX_V7_ILP32_OFFBIG", _SC_V7_ILP32_OFFBIG, SYSCONF },
 692 #endif
 693 #ifdef _CS_POSIX_V7_ILP32_OFFBIG_CFLAGS
 694     { "POSIX_V7_ILP32_OFFBIG_CFLAGS", _CS_POSIX_V7_ILP32_OFFBIG_CFLAGS, CONFSTR },
 695 #endif
 696 #ifdef _CS_POSIX_V7_ILP32_OFFBIG_LDFLAGS
 697     { "POSIX_V7_ILP32_OFFBIG_LDFLAGS", _CS_POSIX_V7_ILP32_OFFBIG_LDFLAGS, CONFSTR },
 698 #endif
 699 #ifdef _CS_POSIX_V7_ILP32_OFFBIG_LIBS
 700     { "POSIX_V7_ILP32_OFFBIG_LIBS", _CS_POSIX_V7_ILP32_OFFBIG_LIBS, CONFSTR },
 701 #endif
 702 #ifdef _CS_POSIX_V7_ILP32_OFFBIG_LINTFLAGS
 703     { "POSIX_V7_ILP32_OFFBIG_LINTFLAGS", _CS_POSIX_V7_ILP32_OFFBIG_LINTFLAGS, CONFSTR },
 704 #endif
 705
 706 #ifdef _SC_V7_LP64_OFF64
 707     { "_POSIX_V7_LP64_OFF64", _SC_V7_LP64_OFF64, SYSCONF },
 708 #endif
 709 #ifdef _CS_POSIX_V7_LP64_OFF64_CFLAGS
 710     { "POSIX_V7_LP64_OFF64_CFLAGS", _CS_POSIX_V7_LP64_OFF64_CFLAGS, CONFSTR },
 711 #endif
 712 #ifdef _CS_POSIX_V7_LP64_OFF64_LDFLAGS
 713     { "POSIX_V7_LP64_OFF64_LDFLAGS", _CS_POSIX_V7_LP64_OFF64_LDFLAGS, CONFSTR },
 714 #endif
 715 #ifdef _CS_POSIX_V7_LP64_OFF64_LIBS
 716     { "POSIX_V7_LP64_OFF64_LIBS", _CS_POSIX_V7_LP64_OFF64_LIBS, CONFSTR },
 717 #endif
 718 #ifdef _CS_POSIX_V7_LP64_OFF64_LINTFLAGS
 719     { "POSIX_V7_LP64_OFF64_LINTFLAGS", _CS_POSIX_V7_LP64_OFF64_LINTFLAGS, CONFSTR },
 720 #endif
 721
 722 #ifdef _SC_V7_LPBIG_OFFBIG
 723     { "_POSIX_V7_LPBIG_OFFBIG", _SC_V7_LPBIG_OFFBIG, SYSCONF },
 724 #endif
 725 #ifdef _CS_POSIX_V7_LPBIG_OFFBIG_CFLAGS
 726     { "POSIX_V7_LPBIG_OFFBIG_CFLAGS", _CS_POSIX_V7_LPBIG_OFFBIG_CFLAGS, CONFSTR },
 727 #endif
 728 #ifdef _CS_POSIX_V7_LPBIG_OFFBIG_LDFLAGS
 729     { "POSIX_V7_LPBIG_OFFBIG_LDFLAGS", _CS_POSIX_V7_LPBIG_OFFBIG_LDFLAGS, CONFSTR },
 730 #endif
 731 #ifdef _CS_POSIX_V7_LPBIG_OFFBIG_LIBS
 732     { "POSIX_V7_LPBIG_OFFBIG_LIBS", _CS_POSIX_V7_LPBIG_OFFBIG_LIBS, CONFSTR },
 733 #endif
 734 #ifdef _CS_POSIX_V7_LPBIG_OFFBIG_LINTFLAGS
 735     { "POSIX_V7_LPBIG_OFFBIG_LINTFLAGS", _CS_POSIX_V7_LPBIG_OFFBIG_LINTFLAGS, CONFSTR },
 736 #endif
 737
 738 #ifdef _SC_ADVISORY_INFO
 739     { "_POSIX_ADVISORY_INFO", _SC_ADVISORY_INFO, SYSCONF },
 740 #endif
 741 #ifdef _SC_BARRIERS
 742     { "_POSIX_BARRIERS", _SC_BARRIERS, SYSCONF },
 743 #endif
 744 #ifdef _SC_BASE
 745     { "_POSIX_BASE", _SC_BASE, SYSCONF },
 746 #endif
 747 #ifdef _SC_C_LANG_SUPPORT
 748     { "_POSIX_C_LANG_SUPPORT", _SC_C_LANG_SUPPORT, SYSCONF },
 749 #endif
 750 #ifdef _SC_C_LANG_SUPPORT_R
 751     { "_POSIX_C_LANG_SUPPORT_R", _SC_C_LANG_SUPPORT_R, SYSCONF },
 752 #endif
 753 #ifdef _SC_CLOCK_SELECTION
 754     { "_POSIX_CLOCK_SELECTION", _SC_CLOCK_SELECTION, SYSCONF },
 755 #endif
 756 #ifdef _SC_CPUTIME
 757     { "_POSIX_CPUTIME", _SC_CPUTIME, SYSCONF },
 758 #endif
 759 #ifdef _SC_THREAD_CPUTIME
 760     { "_POSIX_THREAD_CPUTIME", _SC_THREAD_CPUTIME, SYSCONF },
 761 #endif
 762 #ifdef _SC_DEVICE_SPECIFIC
 763     { "_POSIX_DEVICE_SPECIFIC", _SC_DEVICE_SPECIFIC, SYSCONF },
 764 #endif
 765 #ifdef _SC_DEVICE_SPECIFIC_R
 766     { "_POSIX_DEVICE_SPECIFIC_R", _SC_DEVICE_SPECIFIC_R, SYSCONF },
 767 #endif
 768 #ifdef _SC_FD_MGMT
 769     { "_POSIX_FD_MGMT", _SC_FD_MGMT, SYSCONF },
 770 #endif
 771 #ifdef _SC_FIFO
 772     { "_POSIX_FIFO", _SC_FIFO, SYSCONF },
 773 #endif
 774 #ifdef _SC_PIPE
 775     { "_POSIX_PIPE", _SC_PIPE, SYSCONF },
 776 #endif
 777 #ifdef _SC_FILE_ATTRIBUTES
 778     { "_POSIX_FILE_ATTRIBUTES", _SC_FILE_ATTRIBUTES, SYSCONF },
 779 #endif
 780 #ifdef _SC_FILE_LOCKING
 781     { "_POSIX_FILE_LOCKING", _SC_FILE_LOCKING, SYSCONF },
 782 #endif
 783 #ifdef _SC_FILE_SYSTEM
 784     { "_POSIX_FILE_SYSTEM", _SC_FILE_SYSTEM, SYSCONF },
 785 #endif
 786 #ifdef _SC_MONOTONIC_CLOCK
 787     { "_POSIX_MONOTONIC_CLOCK", _SC_MONOTONIC_CLOCK, SYSCONF },
 788 #endif
 789 #ifdef _SC_MULTI_PROCESS
 790     { "_POSIX_MULTI_PROCESS", _SC_MULTI_PROCESS, SYSCONF },
 791 #endif
 792 #ifdef _SC_SINGLE_PROCESS
 793     { "_POSIX_SINGLE_PROCESS", _SC_SINGLE_PROCESS, SYSCONF },
 794 #endif
 795 #ifdef _SC_NETWORKING
 796     { "_POSIX_NETWORKING", _SC_NETWORKING, SYSCONF },
 797 #endif
 798 #ifdef _SC_READER_WRITER_LOCKS
 799     { "_POSIX_READER_WRITER_LOCKS", _SC_READER_WRITER_LOCKS, SYSCONF },
 800 #endif
 801 #ifdef _SC_SPIN_LOCKS
 802     { "_POSIX_SPIN_LOCKS", _SC_SPIN_LOCKS, SYSCONF },
 803 #endif
 804 #ifdef _SC_REGEXP
 805     { "_POSIX_REGEXP", _SC_REGEXP, SYSCONF },
 806 #endif
 807 #ifdef _SC_REGEX_VERSION
 808     { "_REGEX_VERSION", _SC_REGEX_VERSION, SYSCONF },
 809 #endif
 810 #ifdef _SC_SHELL
 811     { "_POSIX_SHELL", _SC_SHELL, SYSCONF },
 812 #endif
 813 #ifdef _SC_SIGNALS
 814     { "_POSIX_SIGNALS", _SC_SIGNALS, SYSCONF },
 815 #endif
 816 #ifdef _SC_SPAWN
 817     { "_POSIX_SPAWN", _SC_SPAWN, SYSCONF },
 818 #endif
 819 #ifdef _SC_SPORADIC_SERVER
 820     { "_POSIX_SPORADIC_SERVER", _SC_SPORADIC_SERVER, SYSCONF },
 821 #endif
 822 #ifdef _SC_THREAD_SPORADIC_SERVER
 823     { "_POSIX_THREAD_SPORADIC_SERVER", _SC_THREAD_SPORADIC_SERVER, SYSCONF },
 824 #endif
 825 #ifdef _SC_SYSTEM_DATABASE
 826     { "_POSIX_SYSTEM_DATABASE", _SC_SYSTEM_DATABASE, SYSCONF },
 827 #endif
 828 #ifdef _SC_SYSTEM_DATABASE_R
 829     { "_POSIX_SYSTEM_DATABASE_R", _SC_SYSTEM_DATABASE_R, SYSCONF },
 830 #endif
 831 #ifdef _SC_TIMEOUTS
 832     { "_POSIX_TIMEOUTS", _SC_TIMEOUTS, SYSCONF },
 833 #endif
 834 #ifdef _SC_TYPED_MEMORY_OBJECTS
 835     { "_POSIX_TYPED_MEMORY_OBJECTS", _SC_TYPED_MEMORY_OBJECTS, SYSCONF },
 836 #endif
 837 #ifdef _SC_USER_GROUPS
 838     { "_POSIX_USER_GROUPS", _SC_USER_GROUPS, SYSCONF },
 839 #endif
 840 #ifdef _SC_USER_GROUPS_R
 841     { "_POSIX_USER_GROUPS_R", _SC_USER_GROUPS_R, SYSCONF },
 842 #endif
 843 #ifdef _SC_2_PBS
 844     { "POSIX2_PBS", _SC_2_PBS, SYSCONF },
 845 #endif
 846 #ifdef _SC_2_PBS_ACCOUNTING
 847     { "POSIX2_PBS_ACCOUNTING", _SC_2_PBS_ACCOUNTING, SYSCONF },
 848 #endif
 849 #ifdef _SC_2_PBS_LOCATE
 850     { "POSIX2_PBS_LOCATE", _SC_2_PBS_LOCATE, SYSCONF },
 851 #endif
 852 #ifdef _SC_2_PBS_TRACK
 853     { "POSIX2_PBS_TRACK", _SC_2_PBS_TRACK, SYSCONF },
 854 #endif
 855 #ifdef _SC_2_PBS_MESSAGE
 856     { "POSIX2_PBS_MESSAGE", _SC_2_PBS_MESSAGE, SYSCONF },
 857 #endif
 858 #ifdef _SC_SYMLOOP_MAX
 859     { "SYMLOOP_MAX", _SC_SYMLOOP_MAX, SYSCONF },
 860 #endif
 861 #ifdef _SC_STREAM_MAX
 862     { "STREAM_MAX", _SC_STREAM_MAX, SYSCONF },
 863 #endif
 864 #ifdef _SC_AIO_LISTIO_MAX
 865     { "AIO_LISTIO_MAX", _SC_AIO_LISTIO_MAX, SYSCONF },
 866 #endif
 867 #ifdef _SC_AIO_MAX
 868     { "AIO_MAX", _SC_AIO_MAX, SYSCONF },
 869 #endif
 870 #ifdef _SC_AIO_PRIO_DELTA_MAX
 871     { "AIO_PRIO_DELTA_MAX", _SC_AIO_PRIO_DELTA_MAX, SYSCONF },
 872 #endif
 873 #ifdef _SC_DELAYTIMER_MAX
 874     { "DELAYTIMER_MAX", _SC_DELAYTIMER_MAX, SYSCONF },
 875 #endif
 876 #ifdef _SC_HOST_NAME_MAX
 877     { "HOST_NAME_MAX", _SC_HOST_NAME_MAX, SYSCONF },
 878 #endif
 879 #ifdef _SC_LOGIN_NAME_MAX
 880     { "LOGIN_NAME_MAX", _SC_LOGIN_NAME_MAX, SYSCONF },
 881 #endif
 882 #ifdef _SC_MQ_OPEN_MAX
 883     { "MQ_OPEN_MAX", _SC_MQ_OPEN_MAX, SYSCONF },
 884 #endif
 885 #ifdef _SC_MQ_PRIO_MAX
 886     { "MQ_PRIO_MAX", _SC_MQ_PRIO_MAX, SYSCONF },
 887 #endif
 888 #ifdef _SC_DEVICE_IO
 889     { "_POSIX_DEVICE_IO", _SC_DEVICE_IO, SYSCONF },
 890 #endif
 891 #ifdef _SC_TRACE
 892     { "_POSIX_TRACE", _SC_TRACE, SYSCONF },
 893 #endif
 894 #ifdef _SC_TRACE_EVENT_FILTER
 895     { "_POSIX_TRACE_EVENT_FILTER", _SC_TRACE_EVENT_FILTER, SYSCONF },
 896 #endif
 897 #ifdef _SC_TRACE_INHERIT
 898     { "_POSIX_TRACE_INHERIT", _SC_TRACE_INHERIT, SYSCONF },
 899 #endif
 900 #ifdef _SC_TRACE_LOG
 901     { "_POSIX_TRACE_LOG", _SC_TRACE_LOG, SYSCONF },
 902 #endif
 903 #ifdef _SC_RTSIG_MAX
 904     { "RTSIG_MAX", _SC_RTSIG_MAX, SYSCONF },
 905 #endif
 906 #ifdef _SC_SEM_NSEMS_MAX
 907     { "SEM_NSEMS_MAX", _SC_SEM_NSEMS_MAX, SYSCONF },
 908 #endif
 909 #ifdef _SC_SEM_VALUE_MAX
 910     { "SEM_VALUE_MAX", _SC_SEM_VALUE_MAX, SYSCONF },
 911 #endif
 912 #ifdef _SC_SIGQUEUE_MAX
 913     { "SIGQUEUE_MAX", _SC_SIGQUEUE_MAX, SYSCONF },
 914 #endif
 915 #ifdef _PC_FILESIZEBITS
 916     { "FILESIZEBITS", _PC_FILESIZEBITS, PATHCONF },
 917 #endif
 918 #ifdef _PC_ALLOC_SIZE_MIN
 919     { "POSIX_ALLOC_SIZE_MIN", _PC_ALLOC_SIZE_MIN, PATHCONF },
 920 #endif
 921 #ifdef _PC_REC_INCR_XFER_SIZE
 922     { "POSIX_REC_INCR_XFER_SIZE", _PC_REC_INCR_XFER_SIZE, PATHCONF },
 923 #endif
 924 #ifdef _PC_REC_MAX_XFER_SIZE
 925     { "POSIX_REC_MAX_XFER_SIZE", _PC_REC_MAX_XFER_SIZE, PATHCONF },
 926 #endif
 927 #ifdef _PC_REC_MIN_XFER_SIZE
 928     { "POSIX_REC_MIN_XFER_SIZE", _PC_REC_MIN_XFER_SIZE, PATHCONF },
 929 #endif
 930 #ifdef _PC_REC_XFER_ALIGN
 931     { "POSIX_REC_XFER_ALIGN", _PC_REC_XFER_ALIGN, PATHCONF },
 932 #endif
 933 #ifdef _PC_SYMLINK_MAX
 934     { "SYMLINK_MAX", _PC_SYMLINK_MAX, PATHCONF },
 935 #endif
 936 #ifdef _CS_GNU_LIBC_VERSION
 937     { "GNU_LIBC_VERSION", _CS_GNU_LIBC_VERSION, CONFSTR },
 938 #endif
 939 #ifdef _CS_GNU_LIBPTHREAD_VERSION
 940     { "GNU_LIBPTHREAD_VERSION", _CS_GNU_LIBPTHREAD_VERSION, CONFSTR },
 941 #endif
 942 #ifdef _PC_2_SYMLINKS
 943     { "POSIX2_SYMLINKS", _PC_2_SYMLINKS, PATHCONF },
 944 #endif
 945
 946 #ifdef _SC_LEVEL1_ICACHE_SIZE
 947     { "LEVEL1_ICACHE_SIZE", _SC_LEVEL1_ICACHE_SIZE, SYSCONF },
 948 #endif
 949 #ifdef _SC_LEVEL1_ICACHE_ASSOC
 950     { "LEVEL1_ICACHE_ASSOC", _SC_LEVEL1_ICACHE_ASSOC, SYSCONF },
 951 #endif
 952 #ifdef _SC_LEVEL1_ICACHE_LINESIZE
 953     { "LEVEL1_ICACHE_LINESIZE", _SC_LEVEL1_ICACHE_LINESIZE, SYSCONF },
 954 #endif
 955 #ifdef _SC_LEVEL1_DCACHE_SIZE
 956     { "LEVEL1_DCACHE_SIZE", _SC_LEVEL1_DCACHE_SIZE, SYSCONF },
 957 #endif
 958 #ifdef _SC_LEVEL1_DCACHE_ASSOC
 959     { "LEVEL1_DCACHE_ASSOC", _SC_LEVEL1_DCACHE_ASSOC, SYSCONF },
 960 #endif
 961 #ifdef _SC_LEVEL1_DCACHE_LINESIZE
 962     { "LEVEL1_DCACHE_LINESIZE", _SC_LEVEL1_DCACHE_LINESIZE, SYSCONF },
 963 #endif
 964 #ifdef _SC_LEVEL2_CACHE_SIZE
 965     { "LEVEL2_CACHE_SIZE", _SC_LEVEL2_CACHE_SIZE, SYSCONF },
 966 #endif
 967 #ifdef _SC_LEVEL2_CACHE_ASSOC
 968     { "LEVEL2_CACHE_ASSOC", _SC_LEVEL2_CACHE_ASSOC, SYSCONF },
 969 #endif
 970 #ifdef _SC_LEVEL2_CACHE_LINESIZE
 971     { "LEVEL2_CACHE_LINESIZE", _SC_LEVEL2_CACHE_LINESIZE, SYSCONF },
 972 #endif
 973 #ifdef _SC_LEVEL3_CACHE_SIZE
 974     { "LEVEL3_CACHE_SIZE", _SC_LEVEL3_CACHE_SIZE, SYSCONF },
 975 #endif
 976 #ifdef _SC_LEVEL3_CACHE_ASSOC
 977     { "LEVEL3_CACHE_ASSOC", _SC_LEVEL3_CACHE_ASSOC, SYSCONF },
 978 #endif
 979 #ifdef _SC_LEVEL3_CACHE_LINESIZE
 980     { "LEVEL3_CACHE_LINESIZE", _SC_LEVEL3_CACHE_LINESIZE, SYSCONF },
 981 #endif
 982 #ifdef _SC_LEVEL4_CACHE_SIZE
 983     { "LEVEL4_CACHE_SIZE", _SC_LEVEL4_CACHE_SIZE, SYSCONF },
 984 #endif
 985 #ifdef _SC_LEVEL4_CACHE_ASSOC
 986     { "LEVEL4_CACHE_ASSOC", _SC_LEVEL4_CACHE_ASSOC, SYSCONF },
 987 #endif
 988 #ifdef _SC_LEVEL4_CACHE_LINESIZE
 989     { "LEVEL4_CACHE_LINESIZE", _SC_LEVEL4_CACHE_LINESIZE, SYSCONF },
 990 #endif
 991
 992 #ifdef _SC_IPV6
 993     { "IPV6", _SC_IPV6, SYSCONF },
 994 #endif
 995 #ifdef _SC_RAW_SOCKETS
 996     { "RAW_SOCKETS", _SC_RAW_SOCKETS, SYSCONF },
 997 #endif
 998
 999     { NULL, 0, SYSCONF }
1000   };
1001
1002
1003 static const struct { const char *name; int num; } specs[] =
1004   {
1005     { "XBS5_ILP32_OFF32", _SC_XBS5_ILP32_OFF32 },
1006     { "XBS5_ILP32_OFFBIG", _SC_XBS5_ILP32_OFFBIG },
1007     { "XBS5_LP64_OFF64", _SC_XBS5_LP64_OFF64 },
1008     { "XBS5_LPBIG_OFFBIG", _SC_XBS5_LPBIG_OFFBIG },
1009     { "POSIX_V6_ILP32_OFF32", _SC_V6_ILP32_OFF32 },
1010     { "POSIX_V6_ILP32_OFFBIG", _SC_V6_ILP32_OFFBIG },
1011     { "POSIX_V6_LP64_OFF64", _SC_V6_LP64_OFF64 },
1012     { "POSIX_V6_LPBIG_OFFBIG", _SC_V6_LPBIG_OFFBIG },
1013     { "POSIX_V7_ILP32_OFF32", _SC_V7_ILP32_OFF32 },
1014     { "POSIX_V7_ILP32_OFFBIG", _SC_V7_ILP32_OFFBIG },
1015     { "POSIX_V7_LP64_OFF64", _SC_V7_LP64_OFF64 },
1016     { "POSIX_V7_LPBIG_OFFBIG", _SC_V7_LPBIG_OFFBIG },
1017   };
1018 static const int nspecs = sizeof (specs) / sizeof (specs[0]);
1019
1020 extern const char *__progname;
1021
1022
1023 static void
1024 usage (void)
1025 {
1026   fprintf (stderr,
1027            _("Usage: %s [-v specification] variable_name [pathname]\n"),
1028            __progname);
1029   fprintf (stderr,
1030            _("       %s -a [pathname]\n"), __progname);
1031   exit (2);
1032 }
1033
1034
1035 static void
1036 print_all (const char *path)
1037 {
1038   register const struct conf *c;
1039   size_t clen;
1040   long int value;
1041   char *cvalue;
1042   for (c = vars; c->name != NULL; ++c) {
1043     printf("%-35s", c->name);
1044     switch (c->call) {
1045       case PATHCONF:
1046         value = pathconf (path, c->call_name);
1047         if (value != -1) {
1048           printf("%ld", value);
1049         }
1050         printf("\n");
1051         break;
1052       case SYSCONF:
1053         value = sysconf (c->call_name);
1054         if (value == -1l) {
1055           if (c->call_name == _SC_UINT_MAX
1056             || c->call_name == _SC_ULONG_MAX)
1057             printf ("%lu", value);
1058         }
1059         else {
1060           printf ("%ld", value);
1061         }
1062         printf ("\n");
1063         break;
1064       case CONFSTR:
1065         clen = confstr (c->call_name, (char *) NULL, 0);
1066         cvalue = (char *) malloc (clen);
1067         if (cvalue == NULL)
1068           error (3, 0, _("memory exhausted"));
1069         if (confstr (c->call_name, cvalue, clen) != clen)
1070           error (3, errno, "confstr");
1071         printf ("%.*s\n", (int) clen, cvalue);
1072         free (cvalue);
1073         break;
1074     }
1075   }
1076   exit (0);
1077 }
1078
1079 int
1080 main (int argc, char *argv[])
1081 {
1082   register const struct conf *c;
1083
1084   /* Set locale.  Do not set LC_ALL because the other categories must
1085      not be affected (according to POSIX.2).  */
1086   setlocale (LC_CTYPE, "");
1087   setlocale (LC_MESSAGES, "");
1088
1089   /* Initialize the message catalog.  */
1090   textdomain (PACKAGE);
1091
1092   if (argc > 1 && strcmp (argv[1], "--version") == 0)
1093     {
1094       printf ("getconf (GNU %s) %s\n", PACKAGE, VERSION);
1095       printf (gettext ("\
1096 Copyright (C) %s Free Software Foundation, Inc.\n\
1097 This is free software; see the source for copying conditions.  There is NO\n\
1098 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\
1099 "), "2009");
1100       printf (gettext ("Written by %s.\n"), "Roland McGrath");
1101       return 0;
1102     }
1103
1104   if (argc > 1 && strcmp (argv[1], "--help") == 0)
1105     {
1106       printf (gettext ("\
1107 Usage: getconf [-v SPEC] VAR\n\
1108   or:  getconf [-v SPEC] PATH_VAR PATH\n\
1109 \n\
1110 Get the configuration value for variable VAR, or for variable PATH_VAR\n\
1111 for path PATH.  If SPEC is given, give values for compilation\n\
1112 environment SPEC.\n\n"));
1113       printf (gettext ("For bug reporting instructions, please see:\n\
1114 <http://www.gnu.org/software/libc/bugs.html>.\n"));
1115       return 0;
1116     }
1117
1118   const char *getconf_dir = getenv ("GETCONF_DIR") ?: GETCONF_DIR;
1119   size_t getconf_dirlen = strlen (getconf_dir);
1120
1121   const char *spec = NULL;
1122   char buf[sizeof "POSIX_V6_LPBIG_OFFBIG"];
1123   char *argv0 = argv[0];
1124   if (argc > 1 && strncmp (argv[1], "-v", 2) == 0)
1125     {
1126       if (argv[1][2] == '\0')
1127         {
1128           if (argc < 3)
1129             usage ();
1130
1131           spec = argv[2];
1132           argv += 2;
1133           argc -= 2;
1134         }
1135       else
1136         {
1137           spec = &argv[1][2];
1138           argv += 1;
1139           argc += 1;
1140         }
1141     }
1142   else
1143     {
1144       char default_name[getconf_dirlen + sizeof "/default"];
1145       memcpy (mempcpy (default_name, getconf_dir, getconf_dirlen),
1146               "/default", sizeof "/default");
1147       int len = readlink (default_name, buf, sizeof buf - 1);
1148       if (len > 0)
1149         {
1150           buf[len] = '\0';
1151           spec = buf;
1152         }
1153     }
1154
1155   /* Check for the specifications we know.  */
1156   if (spec != NULL)
1157     {
1158       int i;
1159       for (i = 0; i < nspecs; ++i)
1160         if (strcmp (spec, specs[i].name) == 0)
1161           break;
1162
1163       if (i == nspecs)
1164         error (2, 0, _("unknown specification \"%s\""), spec);
1165
1166       switch (specs[i].num)
1167         {
1168 #ifndef _XBS5_ILP32_OFF32
1169           case _SC_XBS5_ILP32_OFF32:
1170 #endif
1171 #ifndef _XBS5_ILP32_OFFBIG
1172           case _SC_XBS5_ILP32_OFFBIG:
1173 #endif
1174 #ifndef _XBS5_LP64_OFF64
1175           case _SC_XBS5_LP64_OFF64:
1176 #endif
1177 #ifndef _XBS5_LPBIG_OFFBIG
1178           case _SC_XBS5_LPBIG_OFFBIG:
1179 #endif
1180 #ifndef _POSIX_V6_ILP32_OFF32
1181           case _SC_V6_ILP32_OFF32:
1182 #endif
1183 #ifndef _POSIX_V6_ILP32_OFFBIG
1184           case _SC_V6_ILP32_OFFBIG:
1185 #endif
1186 #ifndef _POSIX_V6_LP64_OFF64
1187           case _SC_V6_LP64_OFF64:
1188 #endif
1189 #ifndef _POSIX_V6_LPBIG_OFFBIG
1190           case _SC_V6_LPBIG_OFFBIG:
1191 #endif
1192 #ifndef _POSIX_V7_ILP32_OFF32
1193           case _SC_V7_ILP32_OFF32:
1194 #endif
1195 #ifndef _POSIX_V7_ILP32_OFFBIG
1196           case _SC_V7_ILP32_OFFBIG:
1197 #endif
1198 #ifndef _POSIX_V7_LP64_OFF64
1199           case _SC_V7_LP64_OFF64:
1200 #endif
1201 #ifndef _POSIX_V7_LPBIG_OFFBIG
1202           case _SC_V7_LPBIG_OFFBIG:
1203 #endif
1204             {
1205               const char *args[argc + 3];
1206               size_t spec_len = strlen (spec);
1207               char getconf_name[getconf_dirlen + 1 + spec_len + 1];
1208               memcpy (mempcpy (mempcpy (getconf_name, getconf_dir,
1209                                         getconf_dirlen),
1210                                "/", 1), spec, spec_len + 1);
1211               args[0] = argv0;
1212               args[1] = "-v";
1213               args[2] = spec;
1214               memcpy (&args[3], &argv[1], argc * sizeof (argv[1]));
1215               execv (getconf_name, (char * const *) args);
1216               error (4, errno, _("Couldn't execute %s"), getconf_name);
1217             }
1218           default:
1219             break;
1220         }
1221     }
1222
1223   if (argc > 1 && strcmp (argv[1], "-a") == 0)
1224     {
1225       if (argc == 2)
1226         print_all ("/");
1227       else if (argc == 3)
1228         print_all (argv[2]);
1229       else
1230         usage ();
1231     }
1232
1233   if (argc < 2 || argc > 3)
1234     usage ();
1235
1236   for (c = vars; c->name != NULL; ++c)
1237     if (strcmp (c->name, argv[1]) == 0
1238         || (strncmp (c->name, "_POSIX_", 7) == 0
1239             && strcmp (c->name + 7, argv[1]) == 0))
1240       {
1241         long int value;
1242         size_t clen;
1243         char *cvalue;
1244         switch (c->call)
1245           {
1246           case PATHCONF:
1247             if (argc < 3)
1248               usage ();
1249             errno = 0;
1250             value = pathconf (argv[2], c->call_name);
1251             if (value == -1)
1252               {
1253                 if (errno)
1254                   error (3, errno, "pathconf: %s", argv[2]);
1255                 else
1256                   puts (_("undefined"));
1257               }
1258             else
1259               printf ("%ld\n", value);
1260             exit (0);
1261
1262           case SYSCONF:
1263             if (argc > 2)
1264               usage ();
1265             value = sysconf (c->call_name);
1266             if (value == -1l)
1267               {
1268                 if (c->call_name == _SC_UINT_MAX
1269                     || c->call_name == _SC_ULONG_MAX)
1270                   printf ("%lu\n", value);
1271                 else
1272                   puts (_("undefined"));
1273               }
1274             else
1275               printf ("%ld\n", value);
1276             exit (0);
1277
1278           case CONFSTR:
1279             if (argc > 2)
1280               usage ();
1281             clen = confstr (c->call_name, (char *) NULL, 0);
1282             cvalue = (char *) malloc (clen);
1283             if (cvalue == NULL)
1284               error (3, 0, _("memory exhausted"));
1285
1286             if (confstr (c->call_name, cvalue, clen) != clen)
1287               error (3, errno, "confstr");
1288
1289             printf ("%.*s\n", (int) clen, cvalue);
1290             exit (0);
1291           }
1292       }
1293
1294   error (2, 0, _("Unrecognized variable `%s'"), argv[1]);
1295   /* NOTREACHED */
1296   return 2;
1297 }