1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* 28 * Copyright 1985, 1993 by Mortice Kern Systems Inc. All rights reserved. 29 * 30 */ 31 32 /* 33 * getconf -- POSIX.2 compatible utility to query configuration specific 34 * parameters. 35 * -- XPG4 support added June/93 36 * 37 * -- XPG5 support added Dec/97 38 * 39 * -- XPG6 support added May/2003 40 */ 41 42 #include <stdio.h> 43 #include <stdlib.h> 44 #include <string.h> 45 #include <errno.h> 46 #include <unistd.h> 47 #include <limits.h> 48 #include <locale.h> 49 #include <libintl.h> 50 #include <assert.h> 51 52 extern size_t confstr(int, char *, size_t); 53 54 static int aflag = 0; 55 56 #define INVAL_ARG "getconf: Invalid argument (%s)\n" 57 #define INVAL_PATHARG "getconf: Invalid argument (%s or %s)\n" 58 59 /* 60 * Notes: 61 * The sctab.value field is defined to be a long. 62 * There are some values that are "unsigned long"; these values 63 * can be stored in a "long" field but when output, must be printed 64 * as an unsigned value. Thus, these values must have UNSIGNED_VALUE bit 65 * set in sctab.flag field. 66 * 67 * There are 2 different ways to indicate a symbol is undefined: 68 * 1) sctab.flag = UNDEFINED 69 * 2) or sctab.value = -1 (and if !UNDEFINED and !UNSIGNED_VALUE) 70 * 71 * There are a group of symbols (e.g CHAR_MIN, INT_MAX, INT_MIN, LONG_BIT ...) 72 * which we may set to -1 if they are not pre-defined in a system header file. 73 * This is used to indicate that these symbols are "undefined". 74 * We are assuming that these symbols cannot reasonably have a value of -1 75 * if they were defined in a system header file. 76 * (Unless of course -1 can be used to indicate "undefined" for that symbol) 77 */ 78 79 static struct sctab { 80 long value; 81 char *name; 82 enum { SELFCONF, SYSCONF, PATHCONF, CONFSTR } type; 83 int flag; 84 /* bit fields for sctab.flag member */ 85 #define NOFLAGS 0 /* no special indicators */ 86 #define UNDEFINED 1 /* value is known undefined at compile time */ 87 #define UNSIGNED_VALUE 2 /* value is an unsigned */ 88 } sctab[] = { 89 /* 90 * Some entries in this structure have both leading _ and non leading _ 91 * versions for compatibility with various versions of the specifications. 92 * It is not expected that both forms will be required for new entries. 93 */ 94 95 /* POSIX.2-1992 table 2-17 */ 96 _POSIX2_BC_BASE_MAX, "POSIX2_BC_BASE_MAX", SELFCONF, NOFLAGS, 97 _POSIX2_BC_BASE_MAX, "_POSIX2_BC_BASE_MAX", SELFCONF, NOFLAGS, 98 _POSIX2_BC_DIM_MAX, "POSIX2_BC_DIM_MAX", SELFCONF, NOFLAGS, 99 _POSIX2_BC_DIM_MAX, "_POSIX2_BC_DIM_MAX", SELFCONF, NOFLAGS, 100 _POSIX2_BC_SCALE_MAX, "POSIX2_BC_SCALE_MAX", SELFCONF, NOFLAGS, 101 _POSIX2_BC_SCALE_MAX, "_POSIX2_BC_SCALE_MAX", SELFCONF, NOFLAGS, 102 _POSIX2_BC_STRING_MAX, "POSIX2_BC_STRING_MAX", SELFCONF, NOFLAGS, 103 _POSIX2_BC_STRING_MAX, "_POSIX2_BC_STRING_MAX", SELFCONF, NOFLAGS, 104 _POSIX2_COLL_WEIGHTS_MAX, "POSIX2_COLL_WEIGHTS_MAX", SELFCONF, NOFLAGS, 105 _POSIX2_COLL_WEIGHTS_MAX, "_POSIX2_COLL_WEIGHTS_MAX", SELFCONF, NOFLAGS, 106 _POSIX2_EXPR_NEST_MAX, "POSIX2_EXPR_NEST_MAX", SELFCONF, NOFLAGS, 107 _POSIX2_EXPR_NEST_MAX, "_POSIX2_EXPR_NEST_MAX", SELFCONF, NOFLAGS, 108 _POSIX2_LINE_MAX, "POSIX2_LINE_MAX", SELFCONF, NOFLAGS, 109 _POSIX2_LINE_MAX, "_POSIX2_LINE_MAX", SELFCONF, NOFLAGS, 110 _POSIX2_RE_DUP_MAX, "POSIX2_RE_DUP_MAX", SELFCONF, NOFLAGS, 111 _POSIX2_RE_DUP_MAX, "_POSIX2_RE_DUP_MAX", SELFCONF, NOFLAGS, 112 /* See limits.h section below for _POSIX_RE_DUP_MAX */ 113 114 /* UNIX 98 */ 115 _POSIX_AIO_LISTIO_MAX, "_POSIX_AIO_LISTIO_MAX", SELFCONF, NOFLAGS, 116 _POSIX_AIO_MAX, "_POSIX_AIO_MAX", SELFCONF, NOFLAGS, 117 _POSIX_DELAYTIMER_MAX, "_POSIX_DELAYTIMER_MAX", SELFCONF, NOFLAGS, 118 _POSIX_LOGIN_NAME_MAX, "_POSIX_LOGIN_NAME_MAX", SELFCONF, NOFLAGS, 119 _POSIX_MQ_OPEN_MAX, "_POSIX_MQ_OPEN_MAX", SELFCONF, NOFLAGS, 120 _POSIX_MQ_PRIO_MAX, "_POSIX_MQ_PRIO_MAX", SELFCONF, NOFLAGS, 121 _POSIX_RTSIG_MAX, "_POSIX_RTSIG_MAX", SELFCONF, NOFLAGS, 122 _POSIX_SEM_NSEMS_MAX, "_POSIX_SEM_NSEMS_MAX", SELFCONF, NOFLAGS, 123 _POSIX_SEM_VALUE_MAX, "_POSIX_SEM_VALUE_MAX", SELFCONF, NOFLAGS, 124 _POSIX_SIGQUEUE_MAX, "_POSIX_SIGQUEUE_MAX", SELFCONF, NOFLAGS, 125 _POSIX_TTY_NAME_MAX, "_POSIX_TTY_NAME_MAX", SELFCONF, NOFLAGS, 126 127 /* UNIX 03 */ 128 _POSIX_HOST_NAME_MAX, "_POSIX_HOST_NAME_MAX", SELFCONF, NOFLAGS, 129 _POSIX_RE_DUP_MAX, "_POSIX_RE_DUP_MAX", SELFCONF, NOFLAGS, 130 _POSIX_CLOCKRES_MIN, "_POSIX_CLOCKRES_MIN", SELFCONF, NOFLAGS, 131 _POSIX_SYMLINK_MAX, "_POSIX_SYMLINK_MAX", SELFCONF, NOFLAGS, 132 _POSIX_SYMLOOP_MAX, "_POSIX_SYMLOOP_MAX", SELFCONF, NOFLAGS, 133 CHARCLASS_NAME_MAX, "_POSIX2_CHARCLASS_NAME_MAX", SELFCONF, NOFLAGS, 134 135 /* POSIX.2-1992 table 2-17 */ 136 _SC_2_VERSION, "POSIX2_VERSION", SYSCONF, NOFLAGS, 137 _SC_2_VERSION, "_POSIX2_VERSION", SYSCONF, NOFLAGS, 138 139 /* POSIX.2-1992 table 2-18 */ 140 _SC_BC_BASE_MAX, "BC_BASE_MAX", SYSCONF, NOFLAGS, 141 _SC_BC_DIM_MAX, "BC_DIM_MAX", SYSCONF, NOFLAGS, 142 _SC_BC_SCALE_MAX, "BC_SCALE_MAX", SYSCONF, NOFLAGS, 143 _SC_BC_STRING_MAX, "BC_STRING_MAX", SYSCONF, NOFLAGS, 144 _SC_COLL_WEIGHTS_MAX, "COLL_WEIGHTS_MAX", SYSCONF, NOFLAGS, 145 _SC_EXPR_NEST_MAX, "EXPR_NEST_MAX", SYSCONF, NOFLAGS, 146 _SC_LINE_MAX, "LINE_MAX", SYSCONF, NOFLAGS, 147 _SC_RE_DUP_MAX, "RE_DUP_MAX", SYSCONF, NOFLAGS, 148 149 /* POSIX.2-1992 table 2-19 */ 150 _SC_2_C_BIND, "POSIX2_C_BIND", SYSCONF, NOFLAGS, 151 _SC_2_C_BIND, "_POSIX2_C_BIND", SYSCONF, NOFLAGS, 152 _SC_2_C_DEV, "POSIX2_C_DEV", SYSCONF, NOFLAGS, 153 _SC_2_C_DEV, "_POSIX2_C_DEV", SYSCONF, NOFLAGS, 154 _SC_2_CHAR_TERM, "POSIX2_CHAR_TERM", SYSCONF, NOFLAGS, 155 _SC_2_CHAR_TERM, "_POSIX2_CHAR_TERM", SYSCONF, NOFLAGS, 156 _SC_2_FORT_DEV, "POSIX2_FORT_DEV", SYSCONF, NOFLAGS, 157 _SC_2_FORT_DEV, "_POSIX2_FORT_DEV", SYSCONF, NOFLAGS, 158 _SC_2_FORT_RUN, "POSIX2_FORT_RUN", SYSCONF, NOFLAGS, 159 _SC_2_FORT_RUN, "_POSIX2_FORT_RUN", SYSCONF, NOFLAGS, 160 _SC_2_LOCALEDEF, "POSIX2_LOCALEDEF", SYSCONF, NOFLAGS, 161 _SC_2_LOCALEDEF, "_POSIX2_LOCALEDEF", SYSCONF, NOFLAGS, 162 _SC_2_SW_DEV, "POSIX2_SW_DEV", SYSCONF, NOFLAGS, 163 _SC_2_SW_DEV, "_POSIX2_SW_DEV", SYSCONF, NOFLAGS, 164 _SC_2_UPE, "POSIX2_UPE", SYSCONF, NOFLAGS, 165 _SC_2_UPE, "_POSIX2_UPE", SYSCONF, NOFLAGS, 166 167 /* POSIX.1-1990 table 2-3 */ 168 _POSIX_ARG_MAX, "_POSIX_ARG_MAX", SELFCONF, NOFLAGS, 169 _POSIX_CHILD_MAX, "_POSIX_CHILD_MAX", SELFCONF, NOFLAGS, 170 _POSIX_LINK_MAX, "_POSIX_LINK_MAX", SELFCONF, NOFLAGS, 171 _POSIX_MAX_CANON, "_POSIX_MAX_CANON", SELFCONF, NOFLAGS, 172 _POSIX_MAX_INPUT, "_POSIX_MAX_INPUT", SELFCONF, NOFLAGS, 173 _POSIX_NAME_MAX, "_POSIX_NAME_MAX", SELFCONF, NOFLAGS, 174 _POSIX_NGROUPS_MAX, "_POSIX_NGROUPS_MAX", SELFCONF, NOFLAGS, 175 _POSIX_OPEN_MAX, "_POSIX_OPEN_MAX", SELFCONF, NOFLAGS, 176 _POSIX_PATH_MAX, "_POSIX_PATH_MAX", SELFCONF, NOFLAGS, 177 _POSIX_PIPE_BUF, "_POSIX_PIPE_BUF", SELFCONF, NOFLAGS, 178 _POSIX_SSIZE_MAX, "_POSIX_SSIZE_MAX", SELFCONF, NOFLAGS, 179 _POSIX_STREAM_MAX, "_POSIX_STREAM_MAX", SELFCONF, NOFLAGS, 180 _POSIX_TIMER_MAX, "_POSIX_TIMER_MAX", SELFCONF, NOFLAGS, 181 _POSIX_THREAD_DESTRUCTOR_ITERATIONS, 182 "_POSIX_THREAD_DESTRUCTOR_ITERATIONS", SELFCONF, NOFLAGS, 183 _POSIX_THREAD_KEYS_MAX, 184 "_POSIX_THREAD_KEYS_MAX", SELFCONF, NOFLAGS, 185 _POSIX_THREAD_THREADS_MAX, 186 "_POSIX_THREAD_THREADS_MAX", SELFCONF, NOFLAGS, 187 _POSIX_TZNAME_MAX, "_POSIX_TZNAME_MAX", SELFCONF, NOFLAGS, 188 189 /* POSIX.1-1990 table 4-2 */ 190 _SC_ARG_MAX, "ARG_MAX", SYSCONF, NOFLAGS, 191 _SC_CHILD_MAX, "CHILD_MAX", SYSCONF, NOFLAGS, 192 _SC_CLK_TCK, "CLK_TCK", SYSCONF, NOFLAGS, 193 _SC_JOB_CONTROL, "_POSIX_JOB_CONTROL", SYSCONF, NOFLAGS, 194 _SC_NGROUPS_MAX, "NGROUPS_MAX", SYSCONF, NOFLAGS, 195 _SC_OPEN_MAX, "OPEN_MAX", SYSCONF, NOFLAGS, 196 _SC_SAVED_IDS, "_POSIX_SAVED_IDS", SYSCONF, NOFLAGS, 197 _SC_STREAM_MAX, "STREAM_MAX", SYSCONF, NOFLAGS, 198 _SC_TZNAME_MAX, "TZNAME_MAX", SYSCONF, NOFLAGS, 199 _SC_VERSION, "_POSIX_VERSION", SYSCONF, NOFLAGS, 200 201 /* pathconf() variables */ 202 203 /* POSIX.1-1990 table 5-2 */ 204 205 _PC_LINK_MAX, "LINK_MAX", PATHCONF, NOFLAGS, 206 _PC_MAX_CANON, "MAX_CANON", PATHCONF, NOFLAGS, 207 _PC_MAX_INPUT, "MAX_INPUT", PATHCONF, NOFLAGS, 208 _PC_NAME_MAX, "NAME_MAX", PATHCONF, NOFLAGS, 209 _PC_PATH_MAX, "PATH_MAX", PATHCONF, NOFLAGS, 210 _PC_PIPE_BUF, "PIPE_BUF", PATHCONF, NOFLAGS, 211 _PC_CHOWN_RESTRICTED, "_POSIX_CHOWN_RESTRICTED", PATHCONF, NOFLAGS, 212 _PC_NO_TRUNC, "_POSIX_NO_TRUNC", PATHCONF, NOFLAGS, 213 _PC_VDISABLE, "_POSIX_VDISABLE", PATHCONF, NOFLAGS, 214 215 /* UNIX 98 additions */ 216 217 _PC_ASYNC_IO, "_POSIX_ASYNC_IO", PATHCONF, NOFLAGS, 218 _PC_PRIO_IO, "_POSIX_PRIO_IO", PATHCONF, NOFLAGS, 219 _PC_SYNC_IO, "_POSIX_SYNC_IO", PATHCONF, NOFLAGS, 220 221 /* Large File Summit name (UNIX 98) */ 222 223 _PC_FILESIZEBITS, "FILESIZEBITS", PATHCONF, NOFLAGS, 224 225 /* UNIX 03 Additions */ 226 227 /* Advisory Information (ADV) */ 228 _PC_ALLOC_SIZE_MIN, "POSIX_ALLOC_SIZE_MIN", PATHCONF, NOFLAGS, 229 _PC_REC_INCR_XFER_SIZE, "POSIX_REC_INCR_XFER_SIZE", PATHCONF, NOFLAGS, 230 _PC_REC_MAX_XFER_SIZE, "POSIX_REC_MAX_XFER_SIZE", PATHCONF, NOFLAGS, 231 _PC_REC_MIN_XFER_SIZE, "POSIX_REC_MIN_XFER_SIZE", PATHCONF, NOFLAGS, 232 _PC_REC_XFER_ALIGN, "POSIX_REC_XFER_ALIGN", PATHCONF, NOFLAGS, 233 234 _PC_2_SYMLINKS, "POSIX2_SYMLINKS", PATHCONF, NOFLAGS, 235 _PC_SYMLINK_MAX, "SYMLINK_MAX", PATHCONF, NOFLAGS, 236 237 /* UNIX 08 additions */ 238 239 _PC_TIMESTAMP_RESOLUTION, "_POSIX_TIMESTAMP_RESOLUTION", 240 PATHCONF, NOFLAGS, 241 242 /* confstr() variables */ 243 244 /* POSIX.2-1992 description of getconf utility */ 245 _CS_PATH, "PATH", CONFSTR, NOFLAGS, 246 247 /* POSIX.2-1992 table B-18 */ 248 _CS_PATH, "CS_PATH", CONFSTR, NOFLAGS, 249 _CS_PATH, "_CS_PATH", CONFSTR, NOFLAGS, 250 251 /* command names for large file configuration information */ 252 /* large file compilation environment configuration */ 253 254 _CS_LFS_CFLAGS, "LFS_CFLAGS", CONFSTR, NOFLAGS, 255 _CS_LFS_LDFLAGS, "LFS_LDFLAGS", CONFSTR, NOFLAGS, 256 _CS_LFS_LIBS, "LFS_LIBS", CONFSTR, NOFLAGS, 257 _CS_LFS_LINTFLAGS, "LFS_LINTFLAGS", CONFSTR, NOFLAGS, 258 259 /* transitional large file interface configuration */ 260 261 _CS_LFS64_CFLAGS, "LFS64_CFLAGS", CONFSTR, NOFLAGS, 262 _CS_LFS64_LDFLAGS, "LFS64_LDFLAGS", CONFSTR, NOFLAGS, 263 _CS_LFS64_LIBS, "LFS64_LIBS", CONFSTR, NOFLAGS, 264 _CS_LFS64_LINTFLAGS, "LFS64_LINTFLAGS", CONFSTR, NOFLAGS, 265 266 /* 267 * UNIX 98: 268 * confstr additions, these support 269 * programming specifications/environments. 270 * 271 * Unfortunately there is some uncertainty with 272 * the standard at this point about the constant 273 * name, thus we need to recognize BOTH with and 274 * without the initial underscore. 275 */ 276 _CS_XBS5_ILP32_OFF32_CFLAGS, "XBS5_ILP32_OFF32_CFLAGS", 277 CONFSTR, NOFLAGS, 278 _CS_XBS5_ILP32_OFF32_CFLAGS, "_XBS5_ILP32_OFF32_CFLAGS", 279 CONFSTR, NOFLAGS, 280 281 _CS_XBS5_ILP32_OFF32_LDFLAGS, "XBS5_ILP32_OFF32_LDFLAGS", 282 CONFSTR, NOFLAGS, 283 _CS_XBS5_ILP32_OFF32_LDFLAGS, "_XBS5_ILP32_OFF32_LDFLAGS", 284 CONFSTR, NOFLAGS, 285 286 _CS_XBS5_ILP32_OFF32_LIBS, "XBS5_ILP32_OFF32_LIBS", 287 CONFSTR, NOFLAGS, 288 _CS_XBS5_ILP32_OFF32_LIBS, "_XBS5_ILP32_OFF32_LIBS", 289 CONFSTR, NOFLAGS, 290 291 _CS_XBS5_ILP32_OFF32_LINTFLAGS, "XBS5_ILP32_OFF32_LINTFLAGS", 292 CONFSTR, NOFLAGS, 293 _CS_XBS5_ILP32_OFF32_LINTFLAGS, "_XBS5_ILP32_OFF32_LINTFLAGS", 294 CONFSTR, NOFLAGS, 295 296 _CS_XBS5_ILP32_OFFBIG_CFLAGS, "XBS5_ILP32_OFFBIG_CFLAGS", 297 CONFSTR, NOFLAGS, 298 _CS_XBS5_ILP32_OFFBIG_CFLAGS, "_XBS5_ILP32_OFFBIG_CFLAGS", 299 CONFSTR, NOFLAGS, 300 301 _CS_XBS5_ILP32_OFFBIG_LDFLAGS, "XBS5_ILP32_OFFBIG_LDFLAGS", 302 CONFSTR, NOFLAGS, 303 _CS_XBS5_ILP32_OFFBIG_LDFLAGS, "_XBS5_ILP32_OFFBIG_LDFLAGS", 304 CONFSTR, NOFLAGS, 305 306 _CS_XBS5_ILP32_OFFBIG_LIBS, "XBS5_ILP32_OFFBIG_LIBS", 307 CONFSTR, NOFLAGS, 308 _CS_XBS5_ILP32_OFFBIG_LIBS, "_XBS5_ILP32_OFFBIG_LIBS", 309 CONFSTR, NOFLAGS, 310 311 _CS_XBS5_ILP32_OFFBIG_LINTFLAGS, "XBS5_ILP32_OFFBIG_LINTFLAGS", 312 CONFSTR, NOFLAGS, 313 _CS_XBS5_ILP32_OFFBIG_LINTFLAGS, "_XBS5_ILP32_OFFBIG_LINTFLAGS", 314 CONFSTR, NOFLAGS, 315 316 _CS_XBS5_LP64_OFF64_CFLAGS, "XBS5_LP64_OFF64_CFLAGS", 317 CONFSTR, NOFLAGS, 318 _CS_XBS5_LP64_OFF64_CFLAGS, "_XBS5_LP64_OFF64_CFLAGS", 319 CONFSTR, NOFLAGS, 320 321 _CS_XBS5_LP64_OFF64_LDFLAGS, "XBS5_LP64_OFF64_LDFLAGS", 322 CONFSTR, NOFLAGS, 323 _CS_XBS5_LP64_OFF64_LDFLAGS, "_XBS5_LP64_OFF64_LDFLAGS", 324 CONFSTR, NOFLAGS, 325 326 _CS_XBS5_LP64_OFF64_LIBS, "XBS5_LP64_OFF64_LIBS", 327 CONFSTR, NOFLAGS, 328 _CS_XBS5_LP64_OFF64_LIBS, "_XBS5_LP64_OFF64_LIBS", 329 CONFSTR, NOFLAGS, 330 331 _CS_XBS5_LP64_OFF64_LINTFLAGS, "XBS5_LP64_OFF64_LINTFLAGS", 332 CONFSTR, NOFLAGS, 333 _CS_XBS5_LP64_OFF64_LINTFLAGS, "_XBS5_LP64_OFF64_LINTFLAGS", 334 CONFSTR, NOFLAGS, 335 336 _CS_XBS5_LPBIG_OFFBIG_CFLAGS, "XBS5_LPBIG_OFFBIG_CFLAGS", 337 CONFSTR, NOFLAGS, 338 _CS_XBS5_LPBIG_OFFBIG_CFLAGS, "_XBS5_LPBIG_OFFBIG_CFLAGS", 339 CONFSTR, NOFLAGS, 340 341 _CS_XBS5_LPBIG_OFFBIG_LDFLAGS, "XBS5_LPBIG_OFFBIG_LDFLAGS", 342 CONFSTR, NOFLAGS, 343 _CS_XBS5_LPBIG_OFFBIG_LDFLAGS, "_XBS5_LPBIG_OFFBIG_LDFLAGS", 344 CONFSTR, NOFLAGS, 345 346 _CS_XBS5_LPBIG_OFFBIG_LIBS, "XBS5_LPBIG_OFFBIG_LIBS", 347 CONFSTR, NOFLAGS, 348 _CS_XBS5_LPBIG_OFFBIG_LIBS, "_XBS5_LPBIG_OFFBIG_LIBS", 349 CONFSTR, NOFLAGS, 350 351 _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS, "XBS5_LPBIG_OFFBIG_LINTFLAGS", 352 CONFSTR, NOFLAGS, 353 _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS, "_XBS5_LPBIG_OFFBIG_LINTFLAGS", 354 CONFSTR, NOFLAGS, 355 356 /* 357 * UNIX 03 confstr() additions for compilation environments 358 */ 359 _CS_POSIX_V6_ILP32_OFF32_CFLAGS, "POSIX_V6_ILP32_OFF32_CFLAGS", 360 CONFSTR, NOFLAGS, 361 _CS_POSIX_V6_ILP32_OFF32_LDFLAGS, "POSIX_V6_ILP32_OFF32_LDFLAGS", 362 CONFSTR, NOFLAGS, 363 _CS_POSIX_V6_ILP32_OFF32_LIBS, "POSIX_V6_ILP32_OFF32_LIBS", 364 CONFSTR, NOFLAGS, 365 _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS, "POSIX_V6_ILP32_OFFBIG_CFLAGS", 366 CONFSTR, NOFLAGS, 367 _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS, "POSIX_V6_ILP32_OFFBIG_LDFLAGS", 368 CONFSTR, NOFLAGS, 369 _CS_POSIX_V6_ILP32_OFFBIG_LIBS, "POSIX_V6_ILP32_OFFBIG_LIBS", 370 CONFSTR, NOFLAGS, 371 _CS_POSIX_V6_LP64_OFF64_CFLAGS, "POSIX_V6_LP64_OFF64_CFLAGS", 372 CONFSTR, NOFLAGS, 373 _CS_POSIX_V6_LP64_OFF64_LDFLAGS, "POSIX_V6_LP64_OFF64_LDFLAGS", 374 CONFSTR, NOFLAGS, 375 _CS_POSIX_V6_LP64_OFF64_LIBS, "POSIX_V6_LP64_OFF64_LIBS", 376 CONFSTR, NOFLAGS, 377 _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS, "POSIX_V6_LPBIG_OFFBIG_CFLAGS", 378 CONFSTR, NOFLAGS, 379 _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS, "POSIX_V6_LPBIG_OFFBIG_LDFLAGS", 380 CONFSTR, NOFLAGS, 381 _CS_POSIX_V6_LPBIG_OFFBIG_LIBS, "POSIX_V6_LPBIG_OFFBIG_LIBS", 382 CONFSTR, NOFLAGS, 383 _CS_POSIX_V6_WIDTH_RESTRICTED_ENVS, "POSIX_V6_WIDTH_RESTRICTED_ENVS", 384 CONFSTR, NOFLAGS, 385 /* End of UNIX 03 compilation environments */ 386 387 #ifdef _SC_2_C_VERSION /* POSIX.2 table B-4 */ 388 _SC_2_C_VERSION, "_POSIX2_C_VERSION", SYSCONF, NOFLAGS, 389 #else 390 _POSIX2_C_VERSION, "_POSIX2_C_VERSION", SELFCONF, NOFLAGS, 391 #endif 392 393 /* 394 * XPG4 support BEGINS 395 */ 396 397 #ifndef CHARCLASS_NAME_MAX 398 #define CHARCLASS_NAME_MAX -1 399 #endif 400 #ifndef CHAR_BIT 401 #define CHAR_BIT -1 402 #endif 403 #ifndef CHAR_MAX 404 #define CHAR_MAX -1 405 #endif 406 #ifndef CHAR_MIN 407 #define CHAR_MIN -1 408 #endif 409 #ifndef INT_MAX 410 #define INT_MAX -1 411 #endif 412 #ifndef INT_MIN 413 #define INT_MIN -1 414 #endif 415 #ifndef LONG_BIT 416 #define LONG_BIT -1 417 #endif 418 #ifndef LONG_MAX 419 #define LONG_MAX -1 420 #endif 421 #ifndef LONG_MIN 422 #define LONG_MIN -1 423 #endif 424 #ifndef MB_LEN_MAX 425 #define MB_LEN_MAX -1 426 #endif 427 #ifndef NL_NMAX 428 #define NL_NMAX -1 429 #endif 430 #ifndef NL_ARGMAX 431 #define NL_ARGMAX -1 432 #endif 433 #ifndef NL_LANGMAX 434 #define NL_LANGMAX -1 435 #endif 436 #ifndef NL_MSGMAX 437 #define NL_MSGMAX -1 438 #endif 439 #ifndef NL_SETMAX 440 #define NL_SETMAX -1 441 #endif 442 #ifndef NL_TEXTMAX 443 #define NL_TEXTMAX -1 444 #endif 445 #ifndef NZERO 446 #define NZERO -1 447 #endif 448 #ifndef SCHAR_MAX 449 #define SCHAR_MAX -1 450 #endif 451 #ifndef SCHAR_MIN 452 #define SCHAR_MIN -1 453 #endif 454 #ifndef SHRT_MAX 455 #define SHRT_MAX -1 456 #endif 457 #ifndef SHRT_MIN 458 #define SHRT_MIN -1 459 #endif 460 #ifndef TMP_MAX 461 #define TMP_MAX -1 462 #endif 463 #ifndef WORD_BIT 464 #define WORD_BIT -1 465 #endif 466 467 468 #ifndef _XOPEN_XPG2 469 #define _XOPEN_XPG2 -1 470 #endif 471 #ifndef _XOPEN_XPG3 472 #define _XOPEN_XPG3 -1 473 #endif 474 #ifndef _XOPEN_XPG4 475 #define _XOPEN_XPG4 -1 476 #endif 477 478 /* 479 * the following are values that we should find in <limits.h> 480 * so we use SELFCONF here. 481 * 482 */ 483 484 /* POSIX.1-1990 */ 485 CHARCLASS_NAME_MAX, "CHARCLASS_NAME_MAX", SELFCONF, NOFLAGS, 486 SSIZE_MAX, "SSIZE_MAX", SELFCONF, NOFLAGS, 487 488 /* POSIX.1-1988 */ 489 CHAR_BIT, "CHAR_BIT", SELFCONF, NOFLAGS, 490 CHAR_MAX, "CHAR_MAX", SELFCONF, NOFLAGS, 491 CHAR_MIN, "CHAR_MIN", SELFCONF, NOFLAGS, 492 INT_MAX, "INT_MAX", SELFCONF, NOFLAGS, 493 INT_MIN, "INT_MIN", SELFCONF, NOFLAGS, 494 LONG_BIT, "LONG_BIT", SELFCONF, NOFLAGS, 495 LONG_MAX, "LONG_MAX", SELFCONF, NOFLAGS, 496 LONG_MIN, "LONG_MIN", SELFCONF, NOFLAGS, 497 MB_LEN_MAX, "MB_LEN_MAX", SELFCONF, NOFLAGS, 498 NL_NMAX, "NL_NMAX", SELFCONF, NOFLAGS, 499 NL_ARGMAX, "NL_ARGMAX", SELFCONF, NOFLAGS, 500 NL_LANGMAX, "NL_LANGMAX", SELFCONF, NOFLAGS, 501 NL_MSGMAX, "NL_MSGMAX", SELFCONF, NOFLAGS, 502 NL_SETMAX, "NL_SETMAX", SELFCONF, NOFLAGS, 503 NL_TEXTMAX, "NL_TEXTMAX", SELFCONF, NOFLAGS, 504 NZERO, "NZERO", SELFCONF, NOFLAGS, 505 SCHAR_MAX, "SCHAR_MAX", SELFCONF, NOFLAGS, 506 SCHAR_MIN, "SCHAR_MIN", SELFCONF, NOFLAGS, 507 SHRT_MAX, "SHRT_MAX", SELFCONF, NOFLAGS, 508 SHRT_MIN, "SHRT_MIN", SELFCONF, NOFLAGS, 509 TMP_MAX, "TMP_MAX", SELFCONF, NOFLAGS, 510 511 /* 512 * for the unsigned maximums, we cannot rely on the value -1 513 * to indicate "undefined". 514 */ 515 #ifndef UCHAR_MAX 516 0, "UCHAR_MAX", SELFCONF, UNDEFINED, 517 #else 518 (long)UCHAR_MAX, "UCHAR_MAX", SELFCONF, UNSIGNED_VALUE, 519 #endif /* UCHAR_MAX */ 520 #ifndef UINT_MAX 521 0, "UINT_MAX", SELFCONF, UNDEFINED, 522 #else 523 (long)UINT_MAX, "UINT_MAX", SELFCONF, UNSIGNED_VALUE, 524 #endif /* UINT_MAX */ 525 #ifndef ULONG_MAX 526 0, "ULONG_MAX", SELFCONF, UNDEFINED, 527 #else 528 (long)ULONG_MAX, "ULONG_MAX", SELFCONF, UNSIGNED_VALUE, 529 #endif /* ULONG_MAX */ 530 #ifndef USHRT_MAX 531 0, "USHRT_MAX", SELFCONF, UNDEFINED, 532 #else 533 (long)USHRT_MAX, "USHRT_MAX", SELFCONF, UNSIGNED_VALUE, 534 #endif /* USHRT_MAX */ 535 #ifndef SIZE_MAX 536 0, "SIZE_MAX", SELFCONF, UNDEFINED, 537 #else 538 (long)SIZE_MAX, "SIZE_MAX", SELFCONF, UNSIGNED_VALUE, 539 #endif /* SIZE_MAX */ 540 541 WORD_BIT, "WORD_BIT", SELFCONF, NOFLAGS, 542 543 /* XPG4 Version 2 */ 544 _XOPEN_IOV_MAX, "_XOPEN_IOV_MAX", SELFCONF, NOFLAGS, 545 546 /* UNIX 03 */ 547 _XOPEN_NAME_MAX, "_XOPEN_NAME_MAX", SELFCONF, NOFLAGS, 548 _XOPEN_PATH_MAX, "_XOPEN_PATH_MAX", SELFCONF, NOFLAGS, 549 550 /* 551 * The following are defined via sysconf(). These are considered 552 * an extension to sysconf(). 553 * The -0 is needed if _XOPEN_XPG? is defined to be an empty string. 554 */ 555 _XOPEN_XPG2-0, "_XOPEN_XPG2", SELFCONF, NOFLAGS, 556 _XOPEN_XPG3-0, "_XOPEN_XPG3", SELFCONF, NOFLAGS, 557 _XOPEN_XPG4-0, "_XOPEN_XPG4", SELFCONF, NOFLAGS, 558 559 /* 560 * The following should be provided by sysconf() (e.g use SYSCONF), 561 * so we look for the appropriate _SC_* symbol in <unistd.h>. 562 * If it is not defined, then we use SELFCONF with the value of -1. 563 */ 564 _SC_XOPEN_VERSION, "_XOPEN_VERSION", SYSCONF, NOFLAGS, 565 _SC_XOPEN_XCU_VERSION, "_XOPEN_XCU_VERSION", SYSCONF, NOFLAGS, 566 _SC_XOPEN_CRYPT, "_XOPEN_CRYPT", SYSCONF, NOFLAGS, 567 _SC_XOPEN_ENH_I18N, "_XOPEN_ENH_I18N", SYSCONF, NOFLAGS, 568 _SC_XOPEN_SHM, "_XOPEN_SHM", SYSCONF, NOFLAGS, 569 570 /* 571 * XPG4 support ends 572 */ 573 574 /* XPG4, Version 2 support */ 575 576 _SC_ATEXIT_MAX, "ATEXIT_MAX", SYSCONF, NOFLAGS, 577 _SC_PAGESIZE, "PAGESIZE", SYSCONF, NOFLAGS, 578 _SC_PAGE_SIZE, "PAGE_SIZE", SYSCONF, NOFLAGS, 579 _SC_XOPEN_UNIX, "_XOPEN_UNIX", SYSCONF, NOFLAGS, 580 _SC_IOV_MAX, "IOV_MAX", SYSCONF, NOFLAGS, 581 582 /* 583 * UNIX 98 - XPG5 additions 584 */ 585 _SC_XOPEN_LEGACY, "_XOPEN_LEGACY", SYSCONF, NOFLAGS, 586 _SC_PASS_MAX, "PASS_MAX", SYSCONF, NOFLAGS, 587 _SC_AIO_LISTIO_MAX, "AIO_LISTIO_MAX", SYSCONF, NOFLAGS, 588 _SC_AIO_MAX, "AIO_MAX", SYSCONF, NOFLAGS, 589 _SC_AIO_PRIO_DELTA_MAX, "AIO_PRIO_DELTA_MAX", SYSCONF, NOFLAGS, 590 _SC_DELAYTIMER_MAX, "DELAYTIMER_MAX", SYSCONF, NOFLAGS, 591 _SC_MQ_OPEN_MAX, "MQ_OPEN_MAX", SYSCONF, NOFLAGS, 592 _SC_MQ_PRIO_MAX, "MQ_PRIO_MAX", SYSCONF, NOFLAGS, 593 _SC_RTSIG_MAX, "RTSIG_MAX", SYSCONF, NOFLAGS, 594 _SC_SEM_NSEMS_MAX, "SEM_NSEMS_MAX", SYSCONF, NOFLAGS, 595 _SC_SEM_VALUE_MAX, "SEM_VALUE_MAX", SYSCONF, NOFLAGS, 596 _SC_SIGQUEUE_MAX, "SIGQUEUE_MAX", SYSCONF, NOFLAGS, 597 _SC_TIMER_MAX, "TIMER_MAX", SYSCONF, NOFLAGS, 598 599 _SC_ASYNCHRONOUS_IO, "_POSIX_ASYNCHRONOUS_IO", SYSCONF, NOFLAGS, 600 _SC_FSYNC, "_POSIX_FSYNC", SYSCONF, NOFLAGS, 601 _SC_MAPPED_FILES, "_POSIX_MAPPED_FILES", SYSCONF, NOFLAGS, 602 _SC_MEMLOCK, "_POSIX_MEMLOCK", SYSCONF, NOFLAGS, 603 _SC_MEMLOCK_RANGE, "_POSIX_MEMLOCK_RANGE", SYSCONF, NOFLAGS, 604 _SC_MEMORY_PROTECTION, "_POSIX_MEMORY_PROTECTION", SYSCONF, NOFLAGS, 605 _SC_MESSAGE_PASSING, "_POSIX_MESSAGE_PASSING", SYSCONF, NOFLAGS, 606 _SC_PRIORITIZED_IO, "_POSIX_PRIORITIZED_IO", SYSCONF, NOFLAGS, 607 _SC_PRIORITY_SCHEDULING, "_POSIX_PRIORITY_SCHEDULING", SYSCONF, NOFLAGS, 608 _SC_REALTIME_SIGNALS, "_POSIX_REALTIME_SIGNALS", SYSCONF, NOFLAGS, 609 _SC_SEMAPHORES, "_POSIX_SEMAPHORES", SYSCONF, NOFLAGS, 610 611 _SC_SHARED_MEMORY_OBJECTS, "_POSIX_SHARED_MEMORY_OBJECTS", 612 SYSCONF, NOFLAGS, 613 614 _SC_SYNCHRONIZED_IO, "_POSIX_SYNCHRONIZED_IO", SYSCONF, NOFLAGS, 615 _SC_TIMERS, "_POSIX_TIMERS", SYSCONF, NOFLAGS, 616 617 _SC_LOGIN_NAME_MAX, "LOGIN_NAME_MAX", SYSCONF, NOFLAGS, 618 619 _SC_THREAD_DESTRUCTOR_ITERATIONS, "PTHREAD_DESTRUCTOR_ITERATIONS", 620 SYSCONF, NOFLAGS, 621 622 _SC_THREAD_KEYS_MAX, "PTHREAD_KEYS_MAX", SYSCONF, NOFLAGS, 623 _SC_THREAD_STACK_MIN, "PTHREAD_STACK_MIN", SYSCONF, NOFLAGS, 624 _SC_THREAD_THREADS_MAX, "PTHREAD_THREADS_MAX", SYSCONF, NOFLAGS, 625 626 _SC_THREADS, "_POSIX_THREADS", SYSCONF, NOFLAGS, 627 628 _SC_THREAD_ATTR_STACKADDR, "POSIX_THREAD_ATTR_STACKADDR", 629 SYSCONF, NOFLAGS, 630 _SC_THREAD_ATTR_STACKADDR, "_POSIX_THREAD_ATTR_STACKADDR", 631 SYSCONF, NOFLAGS, 632 633 _SC_THREAD_ATTR_STACKSIZE, "POSIX_THREAD_ATTR_STACKSIZE", 634 SYSCONF, NOFLAGS, 635 _SC_THREAD_ATTR_STACKSIZE, "_POSIX_THREAD_ATTR_STACKSIZE", 636 SYSCONF, NOFLAGS, 637 638 _SC_THREAD_PRIORITY_SCHEDULING, "POSIX_THREAD_PRIORITY_SCHEDULING", 639 SYSCONF, NOFLAGS, 640 _SC_THREAD_PRIORITY_SCHEDULING, "_POSIX_THREAD_PRIORITY_SCHEDULING", 641 SYSCONF, NOFLAGS, 642 643 _SC_THREAD_PRIO_INHERIT, "POSIX_THREAD_PRIO_INHERIT", 644 SYSCONF, NOFLAGS, 645 _SC_THREAD_PRIO_INHERIT, "_POSIX_THREAD_PRIO_INHERIT", 646 SYSCONF, NOFLAGS, 647 648 _SC_THREAD_PRIO_PROTECT, "POSIX_THREAD_PRIO_PROTECT", 649 SYSCONF, NOFLAGS, 650 _SC_THREAD_PRIO_PROTECT, "_POSIX_THREAD_PRIO_PROTECT", 651 SYSCONF, NOFLAGS, 652 653 _SC_THREAD_PROCESS_SHARED, "POSIX_THREAD_PROCESS_SHARED", 654 SYSCONF, NOFLAGS, 655 _SC_THREAD_PROCESS_SHARED, "_POSIX_THREAD_PROCESS_SHARED", 656 SYSCONF, NOFLAGS, 657 658 _SC_THREAD_SAFE_FUNCTIONS, "POSIX_THREAD_SAFE_FUNCTIONS", 659 SYSCONF, NOFLAGS, 660 _SC_THREAD_SAFE_FUNCTIONS, "_POSIX_THREAD_SAFE_FUNCTIONS", 661 SYSCONF, NOFLAGS, 662 663 _SC_TTY_NAME_MAX, "TTY_NAME_MAX", SYSCONF, NOFLAGS, 664 _SC_XOPEN_REALTIME, "_XOPEN_REALTIME", SYSCONF, NOFLAGS, 665 _SC_XOPEN_REALTIME_THREADS, "_XOPEN_REALTIME_THREADS", SYSCONF, NOFLAGS, 666 667 /* 668 * Due to ambiguity in the standard we need 669 * to recognize both the underscored name 670 * and the non-underscored version in the 671 * following variables. 672 */ 673 _SC_XBS5_ILP32_OFF32, "XBS5_ILP32_OFF32", SYSCONF, NOFLAGS, 674 _SC_XBS5_ILP32_OFF32, "_XBS5_ILP32_OFF32", SYSCONF, NOFLAGS, 675 676 _SC_XBS5_ILP32_OFFBIG, "XBS5_ILP32_OFFBIG", SYSCONF, NOFLAGS, 677 _SC_XBS5_ILP32_OFFBIG, "_XBS5_ILP32_OFFBIG", SYSCONF, NOFLAGS, 678 679 _SC_XBS5_LP64_OFF64, "XBS5_LP64_OFF64", SYSCONF, NOFLAGS, 680 _SC_XBS5_LP64_OFF64, "_XBS5_LP64_OFF64", SYSCONF, NOFLAGS, 681 682 _SC_XBS5_LPBIG_OFFBIG, "XBS5_LPBIG_OFFBIG", SYSCONF, NOFLAGS, 683 _SC_XBS5_LPBIG_OFFBIG, "_XBS5_LPBIG_OFFBIG", SYSCONF, NOFLAGS, 684 685 /* 686 * UNIX 03 additions for sysconf() names, and names that are not in interfaces 687 */ 688 _SC_REGEXP, "_POSIX_REGEXP", SYSCONF, NOFLAGS, 689 _SC_SHELL, "_POSIX_SHELL", SYSCONF, NOFLAGS, 690 _SC_HOST_NAME_MAX, "HOST_NAME_MAX", SYSCONF, NOFLAGS, 691 _SC_READER_WRITER_LOCKS, "_POSIX_READER_WRITER_LOCKS", SYSCONF, NOFLAGS, 692 _SC_IPV6, "_POSIX_IPV6", SYSCONF, NOFLAGS, 693 _SC_RAW_SOCKETS, "_POSIX_RAW_SOCKETS", SYSCONF, NOFLAGS, 694 _SC_XOPEN_STREAMS, "_XOPEN_STREAMS", SYSCONF, NOFLAGS, 695 _SC_SYMLOOP_MAX, "SYMLOOP_MAX", SYSCONF, NOFLAGS, 696 _SC_2_PBS, "_POSIX2_PBS", SYSCONF, NOFLAGS, 697 _SC_2_PBS_ACCOUNTING, "_POSIX2_PBS_ACCOUNTING", SYSCONF, NOFLAGS, 698 _SC_2_PBS_CHECKPOINT, "_POSIX2_PBS_CHECKPOINT", SYSCONF, NOFLAGS, 699 _SC_2_PBS_LOCATE, "_POSIX2_PBS_LOCATE", SYSCONF, NOFLAGS, 700 _SC_2_PBS_MESSAGE, "_POSIX2_PBS_MESSAGE", SYSCONF, NOFLAGS, 701 _SC_2_PBS_TRACK, "_POSIX2_PBS_TRACK", SYSCONF, NOFLAGS, 702 703 _SC_ADVISORY_INFO, "_POSIX_ADVISORY_INFO", SYSCONF, NOFLAGS, 704 _SC_BARRIERS, "_POSIX_BARRIERS", SYSCONF, NOFLAGS, 705 _SC_CLOCK_SELECTION, "_POSIX_CLOCK_SELECTION", SYSCONF, NOFLAGS, 706 _SC_CPUTIME, "_POSIX_CPUTIME", SYSCONF, NOFLAGS, 707 _SC_MONOTONIC_CLOCK, "_POSIX_MONOTONIC_CLOCK", SYSCONF, NOFLAGS, 708 _SC_SPAWN, "_POSIX_SPAWN", SYSCONF, NOFLAGS, 709 _SC_SPIN_LOCKS, "_POSIX_SPIN_LOCKS", SYSCONF, NOFLAGS, 710 _SC_SPORADIC_SERVER, "_POSIX_SPORADIC_SERVER", SYSCONF, NOFLAGS, 711 _SC_SS_REPL_MAX, "_POSIX_SS_REPL_MAX", SYSCONF, NOFLAGS, 712 _SC_THREAD_CPUTIME, "_POSIX_THREAD_CPUTIME", SYSCONF, NOFLAGS, 713 _SC_THREAD_SPORADIC_SERVER, "_POSIX_THREAD_SPORADIC_SERVER", SYSCONF, 714 NOFLAGS, 715 _SC_TIMEOUTS, "_POSIX_TIMEOUTS", SYSCONF, NOFLAGS, 716 _SC_TRACE, "_POSIX_TRACE", SYSCONF, NOFLAGS, 717 _SC_TRACE_EVENT_FILTER, "_POSIX_TRACE_EVENT_FILTER", SYSCONF, NOFLAGS, 718 _SC_TRACE_EVENT_NAME_MAX, "_POSIX_TRACE_EVENT_NAME_MAX", SYSCONF, 719 NOFLAGS, 720 _SC_TRACE_INHERIT, "_POSIX_TRACE_INHERIT", SYSCONF, NOFLAGS, 721 _SC_TRACE_LOG, "_POSIX_TRACE_LOG", SYSCONF, NOFLAGS, 722 _SC_TRACE_NAME_MAX, "_POSIX_TRACE_NAME_MAX", SYSCONF, NOFLAGS, 723 _SC_TRACE_SYS_MAX, "_POSIX_TRACE_SYS_MAX", SYSCONF, NOFLAGS, 724 _SC_TRACE_USER_EVENT_MAX, "_POSIX_TRACE_USER_EVENT_MAX", SYSCONF, 725 NOFLAGS, 726 _SC_TYPED_MEMORY_OBJECTS, "_POSIX_TYPED_MEMORY_OBJECTS", SYSCONF, 727 NOFLAGS, 728 729 /* 730 * Due to an ambiguity in the specification, we need to recognize both 731 * the underscored POSIX name and the non-underscored name. In addition, 732 * we need to permit the use of the _V6_* environment names specified 733 * in unistd.h. 734 */ 735 _SC_V6_ILP32_OFF32, "_V6_ILP32_OFF32", SYSCONF, NOFLAGS, 736 _SC_V6_ILP32_OFF32, "_POSIX_V6_ILP32_OFF32", SYSCONF, NOFLAGS, 737 _SC_V6_ILP32_OFF32, "POSIX_V6_ILP32_OFF32", SYSCONF, NOFLAGS, 738 739 _SC_V6_ILP32_OFFBIG, "_V6_ILP32_OFFBIG", SYSCONF, NOFLAGS, 740 _SC_V6_ILP32_OFFBIG, "_POSIX_V6_ILP32_OFFBIG", SYSCONF, NOFLAGS, 741 _SC_V6_ILP32_OFFBIG, "POSIX_V6_ILP32_OFFBIG", SYSCONF, NOFLAGS, 742 743 _SC_V6_LP64_OFF64, "_V6_LP64_OFF64", SYSCONF, NOFLAGS, 744 _SC_V6_LP64_OFF64, "_POSIX_V6_LP64_OFF64", SYSCONF, NOFLAGS, 745 _SC_V6_LP64_OFF64, "POSIX_V6_LP64_OFF64", SYSCONF, NOFLAGS, 746 747 _SC_V6_LPBIG_OFFBIG, "_V6_LPBIG_OFFBIG", SYSCONF, NOFLAGS, 748 _SC_V6_LPBIG_OFFBIG, "_POSIX_V6_LPBIG_OFFBIG", SYSCONF, NOFLAGS, 749 _SC_V6_LPBIG_OFFBIG, "POSIX_V6_LPBIG_OFFBIG", SYSCONF, NOFLAGS, 750 0, NULL, 0, 0 /* end of table */ 751 }; 752 753 754 /* 755 * Print usage message. 756 */ 757 static int 758 usage() 759 { 760 761 (void) fputs(gettext( 762 "usage:\tgetconf [-v specification] system_var\n" 763 "\tgetconf [-v specification] path_var pathname\n" 764 "\tgetconf -a\n"), stderr); 765 return (2); 766 } 767 768 769 static int 770 namecmp(const void *a, const void *b) 771 { 772 return (strcoll(((const struct sctab *)a)->name, 773 ((const struct sctab *)b)->name)); 774 } 775 776 777 static int 778 getconf(struct sctab *scp, int argc, char *name, char *file) 779 { 780 register size_t len; 781 register char *buffer; 782 long value; 783 784 switch (scp->type) { 785 case SELFCONF: 786 if (argc > 2) 787 return (usage()); 788 if (scp->flag & UNDEFINED || 789 (!(scp->flag&UNSIGNED_VALUE) && scp->value == -1)) { 790 /* DO NOT TRANSLATE */ 791 (void) printf("undefined\n"); 792 } else 793 if (scp->flag & UNSIGNED_VALUE) 794 (void) printf("%lu\n", scp->value); 795 else 796 (void) printf("%ld\n", scp->value); 797 break; 798 799 case SYSCONF: 800 if (argc > 2) 801 return (usage()); 802 errno = 0; 803 if (scp->flag & UNDEFINED || 804 (value = sysconf((int)scp->value)) == -1) { 805 if (errno == EINVAL) { 806 (void) fprintf(stderr, 807 gettext(INVAL_ARG), name); 808 return (1); 809 } else { 810 /* DO NOT TRANSLATE */ 811 (void) printf("undefined\n"); 812 return (0); 813 } 814 } else 815 (void) printf("%ld\n", value); 816 break; 817 818 case CONFSTR: 819 if (argc > 2) 820 return (usage()); 821 errno = 0; 822 len = confstr((int)scp->value, NULL, (size_t)0); 823 if (len == 0) 824 if (errno == EINVAL) { 825 (void) fprintf(stderr, gettext(INVAL_ARG), 826 name); 827 return (1); 828 } else { 829 /* DO NOT TRANSLATE */ 830 (void) printf("undefined\n"); 831 return (0); 832 } 833 /* 834 * allocate space to store result of constr() into 835 */ 836 if ((buffer = malloc(len)) == NULL) { 837 (void) fprintf(stderr, 838 gettext("insufficient memory available")); 839 return (1); 840 } 841 842 assert(confstr((int)scp->value, buffer, len) != 0); 843 844 (void) printf("%s\n", buffer); 845 free(buffer); 846 break; 847 848 case PATHCONF: 849 if (argc != 3) 850 return (usage()); 851 errno = 0; 852 if ((value = pathconf(file, (int)scp->value)) == -1) { 853 if (errno == EINVAL || errno == 0) { 854 /* Does not support the association */ 855 /* DO NOT TRANSLATE */ 856 (void) printf("undefined\n"); 857 return (0); 858 } else { 859 /* Probably problems with the pathname itself */ 860 if (aflag) { 861 (void) printf("%s\n", file); 862 } else { 863 (void) printf("%s", file); 864 } 865 return (1); 866 } 867 } 868 (void) printf("%ld\n", value); 869 break; 870 } 871 return (0); 872 } 873 874 int 875 main(int argc, char **argv) 876 { 877 register struct sctab *scp; 878 int c; 879 int exstat = 0; 880 881 (void) setlocale(LC_ALL, ""); 882 #if !defined(TEXT_DOMAIN) /* Should be defined by cc -D */ 883 #define TEXT_DOMAIN "SYS_TEST" 884 #endif 885 (void) textdomain(TEXT_DOMAIN); 886 887 while ((c = getopt(argc, argv, "av:")) != -1) 888 switch (c) { 889 case 'a': 890 aflag = 1; 891 break; 892 case 'v': 893 /* 894 * Unix98 adds the -v option to allow 895 * programming 'specifications' to be 896 * indicated, for present purposes 897 * the specification isn't really 898 * doing anything of value, so for 899 * the moment getopt just processes the 900 * option value and argv[1] is adjusted. 901 * 902 * At some later date we might want to 903 * do specification processing at this 904 * point. 905 */ 906 break; 907 case '?': 908 return (usage()); 909 } 910 argc -= optind-1; 911 argv += optind-1; 912 913 if ((aflag && argc >= 2) || (!aflag && argc < 2)) 914 return (usage()); 915 if (aflag) { 916 917 #define TabStop 8 918 #define RightColumn 32 919 #define DefPathName "." 920 921 /* 922 * sort the table by the "name" field 923 * so we print it in sorted order 924 */ 925 qsort(&sctab[0], (sizeof (sctab)/sizeof (struct sctab))-1, 926 sizeof (struct sctab), namecmp); 927 928 /* 929 * print all the known symbols and their values 930 */ 931 for (scp = &sctab[0]; scp->name != NULL; ++scp) { 932 int stat; 933 934 /* 935 * create 2 columns: 936 * variable name in the left column, 937 * value in the right column. 938 * The right column starts at a tab stop. 939 */ 940 (void) printf("%s:\t", scp->name); 941 942 c = strlen(scp->name) + 1; 943 c = (c+TabStop) / TabStop, c *= TabStop; 944 for (; c < RightColumn; c += TabStop) 945 (void) putchar('\t'); 946 947 /* 948 * for pathconf() related variables that require 949 * a pathname, use "." 950 */ 951 stat = getconf(scp, scp->type == PATHCONF ? 3 : 2, 952 scp->name, DefPathName); 953 954 exstat |= stat; 955 956 /* 957 * if stat != 0, then an error message was already 958 * printed in getconf(), 959 * so don't need to print one here 960 */ 961 } 962 } else { 963 964 /* 965 * find the name of the specified variable (argv[1]) 966 * and print its value. 967 */ 968 for (scp = &sctab[0]; scp->name != NULL; ++scp) 969 if (strcmp(argv[1], scp->name) == 0) { 970 exstat = getconf(scp, argc, argv[1], argv[2]); 971 break; 972 } 973 974 /* 975 * if at last entry in table, then the user specified 976 * variable is invalid 977 */ 978 if (scp->name == NULL) { 979 errno = EINVAL; 980 (void) fprintf(stderr, gettext(INVAL_ARG), argv[1]); 981 return (1); 982 } 983 } 984 return (exstat); 985 } 986