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 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 /* 27 * Copyright 1985, 1993 by Mortice Kern Systems Inc. All rights reserved. 28 * 29 */ 30 31 #pragma ident "%Z%%M% %I% %E% SMI" 32 33 /* 34 * getconf -- POSIX.2 compatible utility to query configuration specific 35 * parameters. 36 * -- XPG4 support added June/93 37 * 38 * -- XPG5 support added Dec/97 39 * 40 * -- XPG6 support added May/2003 41 */ 42 43 #include <stdio.h> 44 #include <stdlib.h> 45 #include <string.h> 46 #include <errno.h> 47 #include <unistd.h> 48 #include <limits.h> 49 #include <locale.h> 50 #include <libintl.h> 51 #include <assert.h> 52 53 extern size_t confstr(int, char *, size_t); 54 55 static int aflag = 0; 56 57 #define INVAL_ARG "getconf: Invalid argument (%s)\n" 58 #define INVAL_PATHARG "getconf: Invalid argument (%s or %s)\n" 59 60 /* 61 * Notes: 62 * The sctab.value field is defined to be a long. 63 * There are some values that are "unsigned long"; these values 64 * can be stored in a "long" field but when output, must be printed 65 * as an unsigned value. Thus, these values must have UNSIGNED_VALUE bit 66 * set in sctab.flag field. 67 * 68 * There are 2 different ways to indicate a symbol is undefined: 69 * 1) sctab.flag = UNDEFINED 70 * 2) or sctab.value = -1 (and if !UNDEFINED and !UNSIGNED_VALUE) 71 * 72 * There are a group of symbols (e.g CHAR_MIN, INT_MAX, INT_MIN, LONG_BIT ...) 73 * which we may set to -1 if they are not pre-defined in a system header file. 74 * This is used to indicate that these symbols are "undefined". 75 * We are assuming that these symbols cannot reasonably have a value of -1 76 * if they were defined in a system header file. 77 * (Unless of course -1 can be used to indicate "undefined" for that symbol) 78 */ 79 80 static struct sctab { 81 long value; 82 char *name; 83 enum { SELFCONF, SYSCONF, PATHCONF, CONFSTR } type; 84 int flag; 85 /* bit fields for sctab.flag member */ 86 #define NOFLAGS 0 /* no special indicators */ 87 #define UNDEFINED 1 /* value is known undefined at compile time */ 88 #define UNSIGNED_VALUE 2 /* value is an unsigned */ 89 } sctab[] = { 90 /* 91 * Some entries in this structure have both leading _ and non leading _ 92 * versions for compatibility with various versions of the specifications. 93 * It is not expected that both forms will be required for new entries. 94 */ 95 96 /* POSIX.2-1992 table 2-17 */ 97 _POSIX2_BC_BASE_MAX, "POSIX2_BC_BASE_MAX", SELFCONF, NOFLAGS, 98 _POSIX2_BC_BASE_MAX, "_POSIX2_BC_BASE_MAX", SELFCONF, NOFLAGS, 99 _POSIX2_BC_DIM_MAX, "POSIX2_BC_DIM_MAX", SELFCONF, NOFLAGS, 100 _POSIX2_BC_DIM_MAX, "_POSIX2_BC_DIM_MAX", SELFCONF, NOFLAGS, 101 _POSIX2_BC_SCALE_MAX, "POSIX2_BC_SCALE_MAX", SELFCONF, NOFLAGS, 102 _POSIX2_BC_SCALE_MAX, "_POSIX2_BC_SCALE_MAX", SELFCONF, NOFLAGS, 103 _POSIX2_BC_STRING_MAX, "POSIX2_BC_STRING_MAX", SELFCONF, NOFLAGS, 104 _POSIX2_BC_STRING_MAX, "_POSIX2_BC_STRING_MAX", SELFCONF, NOFLAGS, 105 _POSIX2_COLL_WEIGHTS_MAX, "POSIX2_COLL_WEIGHTS_MAX", SELFCONF, NOFLAGS, 106 _POSIX2_COLL_WEIGHTS_MAX, "_POSIX2_COLL_WEIGHTS_MAX", SELFCONF, NOFLAGS, 107 _POSIX2_EXPR_NEST_MAX, "POSIX2_EXPR_NEST_MAX", SELFCONF, NOFLAGS, 108 _POSIX2_EXPR_NEST_MAX, "_POSIX2_EXPR_NEST_MAX", SELFCONF, NOFLAGS, 109 _POSIX2_LINE_MAX, "POSIX2_LINE_MAX", SELFCONF, NOFLAGS, 110 _POSIX2_LINE_MAX, "_POSIX2_LINE_MAX", SELFCONF, NOFLAGS, 111 _POSIX2_RE_DUP_MAX, "POSIX2_RE_DUP_MAX", SELFCONF, NOFLAGS, 112 _POSIX2_RE_DUP_MAX, "_POSIX2_RE_DUP_MAX", SELFCONF, NOFLAGS, 113 /* See limits.h section below for _POSIX_RE_DUP_MAX */ 114 115 /* UNIX 98 */ 116 _POSIX_AIO_LISTIO_MAX, "_POSIX_AIO_LISTIO_MAX", SELFCONF, NOFLAGS, 117 _POSIX_AIO_MAX, "_POSIX_AIO_MAX", SELFCONF, NOFLAGS, 118 _POSIX_DELAYTIMER_MAX, "_POSIX_DELAYTIMER_MAX", SELFCONF, NOFLAGS, 119 _POSIX_LOGIN_NAME_MAX, "_POSIX_LOGIN_NAME_MAX", SELFCONF, NOFLAGS, 120 _POSIX_MQ_OPEN_MAX, "_POSIX_MQ_OPEN_MAX", SELFCONF, NOFLAGS, 121 _POSIX_MQ_PRIO_MAX, "_POSIX_MQ_PRIO_MAX", SELFCONF, NOFLAGS, 122 _POSIX_RTSIG_MAX, "_POSIX_RTSIG_MAX", SELFCONF, NOFLAGS, 123 _POSIX_SEM_NSEMS_MAX, "_POSIX_SEM_NSEMS_MAX", SELFCONF, NOFLAGS, 124 _POSIX_SEM_VALUE_MAX, "_POSIX_SEM_VALUE_MAX", SELFCONF, NOFLAGS, 125 _POSIX_SIGQUEUE_MAX, "_POSIX_SIGQUEUE_MAX", SELFCONF, NOFLAGS, 126 _POSIX_TTY_NAME_MAX, "_POSIX_TTY_NAME_MAX", SELFCONF, NOFLAGS, 127 128 /* UNIX 03 */ 129 _POSIX_HOST_NAME_MAX, "_POSIX_HOST_NAME_MAX", SELFCONF, NOFLAGS, 130 _POSIX_RE_DUP_MAX, "_POSIX_RE_DUP_MAX", SELFCONF, NOFLAGS, 131 _POSIX_CLOCKRES_MIN, "_POSIX_CLOCKRES_MIN", SELFCONF, NOFLAGS, 132 _POSIX_SYMLINK_MAX, "_POSIX_SYMLINK_MAX", SELFCONF, NOFLAGS, 133 _POSIX_SYMLOOP_MAX, "_POSIX_SYMLOOP_MAX", SELFCONF, NOFLAGS, 134 CHARCLASS_NAME_MAX, "_POSIX2_CHARCLASS_NAME_MAX", SELFCONF, NOFLAGS, 135 136 /* POSIX.2-1992 table 2-17 */ 137 _SC_2_VERSION, "POSIX2_VERSION", SYSCONF, NOFLAGS, 138 _SC_2_VERSION, "_POSIX2_VERSION", SYSCONF, NOFLAGS, 139 140 /* POSIX.2-1992 table 2-18 */ 141 _SC_BC_BASE_MAX, "BC_BASE_MAX", SYSCONF, NOFLAGS, 142 _SC_BC_DIM_MAX, "BC_DIM_MAX", SYSCONF, NOFLAGS, 143 _SC_BC_SCALE_MAX, "BC_SCALE_MAX", SYSCONF, NOFLAGS, 144 _SC_BC_STRING_MAX, "BC_STRING_MAX", SYSCONF, NOFLAGS, 145 _SC_COLL_WEIGHTS_MAX, "COLL_WEIGHTS_MAX", SYSCONF, NOFLAGS, 146 _SC_EXPR_NEST_MAX, "EXPR_NEST_MAX", SYSCONF, NOFLAGS, 147 _SC_LINE_MAX, "LINE_MAX", SYSCONF, NOFLAGS, 148 _SC_RE_DUP_MAX, "RE_DUP_MAX", SYSCONF, NOFLAGS, 149 150 /* POSIX.2-1992 table 2-19 */ 151 _SC_2_C_BIND, "POSIX2_C_BIND", SYSCONF, NOFLAGS, 152 _SC_2_C_BIND, "_POSIX2_C_BIND", SYSCONF, NOFLAGS, 153 _SC_2_C_DEV, "POSIX2_C_DEV", SYSCONF, NOFLAGS, 154 _SC_2_C_DEV, "_POSIX2_C_DEV", SYSCONF, NOFLAGS, 155 _SC_2_CHAR_TERM, "POSIX2_CHAR_TERM", SYSCONF, NOFLAGS, 156 _SC_2_CHAR_TERM, "_POSIX2_CHAR_TERM", SYSCONF, NOFLAGS, 157 _SC_2_FORT_DEV, "POSIX2_FORT_DEV", SYSCONF, NOFLAGS, 158 _SC_2_FORT_DEV, "_POSIX2_FORT_DEV", SYSCONF, NOFLAGS, 159 _SC_2_FORT_RUN, "POSIX2_FORT_RUN", SYSCONF, NOFLAGS, 160 _SC_2_FORT_RUN, "_POSIX2_FORT_RUN", SYSCONF, NOFLAGS, 161 _SC_2_LOCALEDEF, "POSIX2_LOCALEDEF", SYSCONF, NOFLAGS, 162 _SC_2_LOCALEDEF, "_POSIX2_LOCALEDEF", SYSCONF, NOFLAGS, 163 _SC_2_SW_DEV, "POSIX2_SW_DEV", SYSCONF, NOFLAGS, 164 _SC_2_SW_DEV, "_POSIX2_SW_DEV", SYSCONF, NOFLAGS, 165 _SC_2_UPE, "POSIX2_UPE", SYSCONF, NOFLAGS, 166 _SC_2_UPE, "_POSIX2_UPE", SYSCONF, NOFLAGS, 167 168 /* POSIX.1-1990 table 2-3 */ 169 _POSIX_ARG_MAX, "_POSIX_ARG_MAX", SELFCONF, NOFLAGS, 170 _POSIX_CHILD_MAX, "_POSIX_CHILD_MAX", SELFCONF, NOFLAGS, 171 _POSIX_LINK_MAX, "_POSIX_LINK_MAX", SELFCONF, NOFLAGS, 172 _POSIX_MAX_CANON, "_POSIX_MAX_CANON", SELFCONF, NOFLAGS, 173 _POSIX_MAX_INPUT, "_POSIX_MAX_INPUT", SELFCONF, NOFLAGS, 174 _POSIX_NAME_MAX, "_POSIX_NAME_MAX", SELFCONF, NOFLAGS, 175 _POSIX_NGROUPS_MAX, "_POSIX_NGROUPS_MAX", SELFCONF, NOFLAGS, 176 _POSIX_OPEN_MAX, "_POSIX_OPEN_MAX", SELFCONF, NOFLAGS, 177 _POSIX_PATH_MAX, "_POSIX_PATH_MAX", SELFCONF, NOFLAGS, 178 _POSIX_PIPE_BUF, "_POSIX_PIPE_BUF", SELFCONF, NOFLAGS, 179 _POSIX_SSIZE_MAX, "_POSIX_SSIZE_MAX", SELFCONF, NOFLAGS, 180 _POSIX_STREAM_MAX, "_POSIX_STREAM_MAX", SELFCONF, NOFLAGS, 181 _POSIX_TIMER_MAX, "_POSIX_TIMER_MAX", SELFCONF, NOFLAGS, 182 _POSIX_THREAD_DESTRUCTOR_ITERATIONS, 183 "_POSIX_THREAD_DESTRUCTOR_ITERATIONS", SELFCONF, NOFLAGS, 184 _POSIX_THREAD_KEYS_MAX, 185 "_POSIX_THREAD_KEYS_MAX", SELFCONF, NOFLAGS, 186 _POSIX_THREAD_THREADS_MAX, 187 "_POSIX_THREAD_THREADS_MAX", SELFCONF, NOFLAGS, 188 _POSIX_TZNAME_MAX, "_POSIX_TZNAME_MAX", SELFCONF, NOFLAGS, 189 190 /* POSIX.1-1990 table 4-2 */ 191 _SC_ARG_MAX, "ARG_MAX", SYSCONF, NOFLAGS, 192 _SC_CHILD_MAX, "CHILD_MAX", SYSCONF, NOFLAGS, 193 _SC_CLK_TCK, "CLK_TCK", SYSCONF, NOFLAGS, 194 _SC_JOB_CONTROL, "_POSIX_JOB_CONTROL", SYSCONF, NOFLAGS, 195 _SC_NGROUPS_MAX, "NGROUPS_MAX", SYSCONF, NOFLAGS, 196 _SC_OPEN_MAX, "OPEN_MAX", SYSCONF, NOFLAGS, 197 _SC_SAVED_IDS, "_POSIX_SAVED_IDS", SYSCONF, NOFLAGS, 198 _SC_STREAM_MAX, "STREAM_MAX", SYSCONF, NOFLAGS, 199 _SC_TZNAME_MAX, "TZNAME_MAX", SYSCONF, NOFLAGS, 200 _SC_VERSION, "_POSIX_VERSION", SYSCONF, NOFLAGS, 201 202 /* pathconf() variables */ 203 204 /* POSIX.1-1990 table 5-2 */ 205 206 _PC_LINK_MAX, "LINK_MAX", PATHCONF, NOFLAGS, 207 _PC_MAX_CANON, "MAX_CANON", PATHCONF, NOFLAGS, 208 _PC_MAX_INPUT, "MAX_INPUT", PATHCONF, NOFLAGS, 209 _PC_NAME_MAX, "NAME_MAX", PATHCONF, NOFLAGS, 210 _PC_PATH_MAX, "PATH_MAX", PATHCONF, NOFLAGS, 211 _PC_PIPE_BUF, "PIPE_BUF", PATHCONF, NOFLAGS, 212 _PC_CHOWN_RESTRICTED, "_POSIX_CHOWN_RESTRICTED", PATHCONF, NOFLAGS, 213 _PC_NO_TRUNC, "_POSIX_NO_TRUNC", PATHCONF, NOFLAGS, 214 _PC_VDISABLE, "_POSIX_VDISABLE", PATHCONF, NOFLAGS, 215 216 /* UNIX 98 additions */ 217 218 _PC_ASYNC_IO, "_POSIX_ASYNC_IO", PATHCONF, NOFLAGS, 219 _PC_PRIO_IO, "_POSIX_PRIO_IO", PATHCONF, NOFLAGS, 220 _PC_SYNC_IO, "_POSIX_SYNC_IO", PATHCONF, NOFLAGS, 221 222 /* Large File Summit name (UNIX 98) */ 223 224 _PC_FILESIZEBITS, "FILESIZEBITS", PATHCONF, NOFLAGS, 225 226 /* UNIX 03 Additions */ 227 228 /* Not supporting the Advisory Information (ADV) at this time. */ 229 _PC_ALLOC_SIZE_MIN, "POSIX_ALLOC_SIZE_MIN", PATHCONF, NOFLAGS, 230 _PC_REC_INCR_XFER_SIZE, "POSIX_REC_INCR_XFER_SIZE", PATHCONF, NOFLAGS, 231 _PC_REC_MAX_XFER_SIZE, "POSIX_REC_MAX_XFER_SIZE", PATHCONF, NOFLAGS, 232 _PC_REC_MIN_XFER_SIZE, "POSIX_REC_MIN_XFER_SIZE", PATHCONF, NOFLAGS, 233 _PC_REC_XFER_ALIGN, "POSIX_REC_XFER_ALIGN", PATHCONF, NOFLAGS, 234 235 _PC_2_SYMLINKS, "POSIX2_SYMLINKS", PATHCONF, NOFLAGS, 236 _PC_SYMLINK_MAX, "SYMLINK_MAX", PATHCONF, NOFLAGS, 237 238 /* confstr() variables */ 239 240 /* POSIX.2-1992 description of getconf utility */ 241 _CS_PATH, "PATH", CONFSTR, NOFLAGS, 242 243 /* POSIX.2-1992 table B-18 */ 244 _CS_PATH, "CS_PATH", CONFSTR, NOFLAGS, 245 _CS_PATH, "_CS_PATH", CONFSTR, NOFLAGS, 246 247 /* command names for large file configuration information */ 248 /* large file compilation environment configuration */ 249 250 _CS_LFS_CFLAGS, "LFS_CFLAGS", CONFSTR, NOFLAGS, 251 _CS_LFS_LDFLAGS, "LFS_LDFLAGS", CONFSTR, NOFLAGS, 252 _CS_LFS_LIBS, "LFS_LIBS", CONFSTR, NOFLAGS, 253 _CS_LFS_LINTFLAGS, "LFS_LINTFLAGS", CONFSTR, NOFLAGS, 254 255 /* transitional large file interface configuration */ 256 257 _CS_LFS64_CFLAGS, "LFS64_CFLAGS", CONFSTR, NOFLAGS, 258 _CS_LFS64_LDFLAGS, "LFS64_LDFLAGS", CONFSTR, NOFLAGS, 259 _CS_LFS64_LIBS, "LFS64_LIBS", CONFSTR, NOFLAGS, 260 _CS_LFS64_LINTFLAGS, "LFS64_LINTFLAGS", CONFSTR, NOFLAGS, 261 262 /* 263 * UNIX 98: 264 * confstr additions, these support 265 * programming specifications/environments. 266 * 267 * Unfortunately there is some uncertainty with 268 * the standard at this point about the constant 269 * name, thus we need to recognize BOTH with and 270 * without the initial underscore. 271 */ 272 _CS_XBS5_ILP32_OFF32_CFLAGS, "XBS5_ILP32_OFF32_CFLAGS", 273 CONFSTR, NOFLAGS, 274 _CS_XBS5_ILP32_OFF32_CFLAGS, "_XBS5_ILP32_OFF32_CFLAGS", 275 CONFSTR, NOFLAGS, 276 277 _CS_XBS5_ILP32_OFF32_LDFLAGS, "XBS5_ILP32_OFF32_LDFLAGS", 278 CONFSTR, NOFLAGS, 279 _CS_XBS5_ILP32_OFF32_LDFLAGS, "_XBS5_ILP32_OFF32_LDFLAGS", 280 CONFSTR, NOFLAGS, 281 282 _CS_XBS5_ILP32_OFF32_LIBS, "XBS5_ILP32_OFF32_LIBS", 283 CONFSTR, NOFLAGS, 284 _CS_XBS5_ILP32_OFF32_LIBS, "_XBS5_ILP32_OFF32_LIBS", 285 CONFSTR, NOFLAGS, 286 287 _CS_XBS5_ILP32_OFF32_LINTFLAGS, "XBS5_ILP32_OFF32_LINTFLAGS", 288 CONFSTR, NOFLAGS, 289 _CS_XBS5_ILP32_OFF32_LINTFLAGS, "_XBS5_ILP32_OFF32_LINTFLAGS", 290 CONFSTR, NOFLAGS, 291 292 _CS_XBS5_ILP32_OFFBIG_CFLAGS, "XBS5_ILP32_OFFBIG_CFLAGS", 293 CONFSTR, NOFLAGS, 294 _CS_XBS5_ILP32_OFFBIG_CFLAGS, "_XBS5_ILP32_OFFBIG_CFLAGS", 295 CONFSTR, NOFLAGS, 296 297 _CS_XBS5_ILP32_OFFBIG_LDFLAGS, "XBS5_ILP32_OFFBIG_LDFLAGS", 298 CONFSTR, NOFLAGS, 299 _CS_XBS5_ILP32_OFFBIG_LDFLAGS, "_XBS5_ILP32_OFFBIG_LDFLAGS", 300 CONFSTR, NOFLAGS, 301 302 _CS_XBS5_ILP32_OFFBIG_LIBS, "XBS5_ILP32_OFFBIG_LIBS", 303 CONFSTR, NOFLAGS, 304 _CS_XBS5_ILP32_OFFBIG_LIBS, "_XBS5_ILP32_OFFBIG_LIBS", 305 CONFSTR, NOFLAGS, 306 307 _CS_XBS5_ILP32_OFFBIG_LINTFLAGS, "XBS5_ILP32_OFFBIG_LINTFLAGS", 308 CONFSTR, NOFLAGS, 309 _CS_XBS5_ILP32_OFFBIG_LINTFLAGS, "_XBS5_ILP32_OFFBIG_LINTFLAGS", 310 CONFSTR, NOFLAGS, 311 312 _CS_XBS5_LP64_OFF64_CFLAGS, "XBS5_LP64_OFF64_CFLAGS", 313 CONFSTR, NOFLAGS, 314 _CS_XBS5_LP64_OFF64_CFLAGS, "_XBS5_LP64_OFF64_CFLAGS", 315 CONFSTR, NOFLAGS, 316 317 _CS_XBS5_LP64_OFF64_LDFLAGS, "XBS5_LP64_OFF64_LDFLAGS", 318 CONFSTR, NOFLAGS, 319 _CS_XBS5_LP64_OFF64_LDFLAGS, "_XBS5_LP64_OFF64_LDFLAGS", 320 CONFSTR, NOFLAGS, 321 322 _CS_XBS5_LP64_OFF64_LIBS, "XBS5_LP64_OFF64_LIBS", 323 CONFSTR, NOFLAGS, 324 _CS_XBS5_LP64_OFF64_LIBS, "_XBS5_LP64_OFF64_LIBS", 325 CONFSTR, NOFLAGS, 326 327 _CS_XBS5_LP64_OFF64_LINTFLAGS, "XBS5_LP64_OFF64_LINTFLAGS", 328 CONFSTR, NOFLAGS, 329 _CS_XBS5_LP64_OFF64_LINTFLAGS, "_XBS5_LP64_OFF64_LINTFLAGS", 330 CONFSTR, NOFLAGS, 331 332 _CS_XBS5_LPBIG_OFFBIG_CFLAGS, "XBS5_LPBIG_OFFBIG_CFLAGS", 333 CONFSTR, NOFLAGS, 334 _CS_XBS5_LPBIG_OFFBIG_CFLAGS, "_XBS5_LPBIG_OFFBIG_CFLAGS", 335 CONFSTR, NOFLAGS, 336 337 _CS_XBS5_LPBIG_OFFBIG_LDFLAGS, "XBS5_LPBIG_OFFBIG_LDFLAGS", 338 CONFSTR, NOFLAGS, 339 _CS_XBS5_LPBIG_OFFBIG_LDFLAGS, "_XBS5_LPBIG_OFFBIG_LDFLAGS", 340 CONFSTR, NOFLAGS, 341 342 _CS_XBS5_LPBIG_OFFBIG_LIBS, "XBS5_LPBIG_OFFBIG_LIBS", 343 CONFSTR, NOFLAGS, 344 _CS_XBS5_LPBIG_OFFBIG_LIBS, "_XBS5_LPBIG_OFFBIG_LIBS", 345 CONFSTR, NOFLAGS, 346 347 _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS, "XBS5_LPBIG_OFFBIG_LINTFLAGS", 348 CONFSTR, NOFLAGS, 349 _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS, "_XBS5_LPBIG_OFFBIG_LINTFLAGS", 350 CONFSTR, NOFLAGS, 351 352 /* 353 * UNIX 03 confstr() additions for compilation environments 354 */ 355 _CS_POSIX_V6_ILP32_OFF32_CFLAGS, "POSIX_V6_ILP32_OFF32_CFLAGS", 356 CONFSTR, NOFLAGS, 357 _CS_POSIX_V6_ILP32_OFF32_LDFLAGS, "POSIX_V6_ILP32_OFF32_LDFLAGS", 358 CONFSTR, NOFLAGS, 359 _CS_POSIX_V6_ILP32_OFF32_LIBS, "POSIX_V6_ILP32_OFF32_LIBS", 360 CONFSTR, NOFLAGS, 361 _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS, "POSIX_V6_ILP32_OFFBIG_CFLAGS", 362 CONFSTR, NOFLAGS, 363 _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS, "POSIX_V6_ILP32_OFFBIG_LDFLAGS", 364 CONFSTR, NOFLAGS, 365 _CS_POSIX_V6_ILP32_OFFBIG_LIBS, "POSIX_V6_ILP32_OFFBIG_LIBS", 366 CONFSTR, NOFLAGS, 367 _CS_POSIX_V6_LP64_OFF64_CFLAGS, "POSIX_V6_LP64_OFF64_CFLAGS", 368 CONFSTR, NOFLAGS, 369 _CS_POSIX_V6_LP64_OFF64_LDFLAGS, "POSIX_V6_LP64_OFF64_LDFLAGS", 370 CONFSTR, NOFLAGS, 371 _CS_POSIX_V6_LP64_OFF64_LIBS, "POSIX_V6_LP64_OFF64_LIBS", 372 CONFSTR, NOFLAGS, 373 _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS, "POSIX_V6_LPBIG_OFFBIG_CFLAGS", 374 CONFSTR, NOFLAGS, 375 _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS, "POSIX_V6_LPBIG_OFFBIG_LDFLAGS", 376 CONFSTR, NOFLAGS, 377 _CS_POSIX_V6_LPBIG_OFFBIG_LIBS, "POSIX_V6_LPBIG_OFFBIG_LIBS", 378 CONFSTR, NOFLAGS, 379 _CS_POSIX_V6_WIDTH_RESTRICTED_ENVS, "POSIX_V6_WIDTH_RESTRICTED_ENVS", 380 CONFSTR, NOFLAGS, 381 /* End of UNIX 03 compilation environments */ 382 383 #ifdef _SC_2_C_VERSION /* POSIX.2 table B-4 */ 384 _SC_2_C_VERSION, "_POSIX2_C_VERSION", SYSCONF, NOFLAGS, 385 #else 386 _POSIX2_C_VERSION, "_POSIX2_C_VERSION", SELFCONF, NOFLAGS, 387 #endif 388 389 /* 390 * XPG4 support BEGINS 391 */ 392 393 #ifndef CHARCLASS_NAME_MAX 394 #define CHARCLASS_NAME_MAX -1 395 #endif 396 #ifndef CHAR_BIT 397 #define CHAR_BIT -1 398 #endif 399 #ifndef CHAR_MAX 400 #define CHAR_MAX -1 401 #endif 402 #ifndef CHAR_MIN 403 #define CHAR_MIN -1 404 #endif 405 #ifndef INT_MAX 406 #define INT_MAX -1 407 #endif 408 #ifndef INT_MIN 409 #define INT_MIN -1 410 #endif 411 #ifndef LONG_BIT 412 #define LONG_BIT -1 413 #endif 414 #ifndef LONG_MAX 415 #define LONG_MAX -1 416 #endif 417 #ifndef LONG_MIN 418 #define LONG_MIN -1 419 #endif 420 #ifndef MB_LEN_MAX 421 #define MB_LEN_MAX -1 422 #endif 423 #ifndef NL_NMAX 424 #define NL_NMAX -1 425 #endif 426 #ifndef NL_ARGMAX 427 #define NL_ARGMAX -1 428 #endif 429 #ifndef NL_LANGMAX 430 #define NL_LANGMAX -1 431 #endif 432 #ifndef NL_MSGMAX 433 #define NL_MSGMAX -1 434 #endif 435 #ifndef NL_SETMAX 436 #define NL_SETMAX -1 437 #endif 438 #ifndef NL_TEXTMAX 439 #define NL_TEXTMAX -1 440 #endif 441 #ifndef NZERO 442 #define NZERO -1 443 #endif 444 #ifndef SCHAR_MAX 445 #define SCHAR_MAX -1 446 #endif 447 #ifndef SCHAR_MIN 448 #define SCHAR_MIN -1 449 #endif 450 #ifndef SHRT_MAX 451 #define SHRT_MAX -1 452 #endif 453 #ifndef SHRT_MIN 454 #define SHRT_MIN -1 455 #endif 456 #ifndef TMP_MAX 457 #define TMP_MAX -1 458 #endif 459 #ifndef WORD_BIT 460 #define WORD_BIT -1 461 #endif 462 463 464 #ifndef _XOPEN_XPG2 465 #define _XOPEN_XPG2 -1 466 #endif 467 #ifndef _XOPEN_XPG3 468 #define _XOPEN_XPG3 -1 469 #endif 470 #ifndef _XOPEN_XPG4 471 #define _XOPEN_XPG4 -1 472 #endif 473 474 /* 475 * the following are values that we should find in <limits.h> 476 * so we use SELFCONF here. 477 * 478 */ 479 480 /* POSIX.1-1990 */ 481 CHARCLASS_NAME_MAX, "CHARCLASS_NAME_MAX", SELFCONF, NOFLAGS, 482 SSIZE_MAX, "SSIZE_MAX", SELFCONF, NOFLAGS, 483 484 /* POSIX.1-1988 */ 485 CHAR_BIT, "CHAR_BIT", SELFCONF, NOFLAGS, 486 CHAR_MAX, "CHAR_MAX", SELFCONF, NOFLAGS, 487 CHAR_MIN, "CHAR_MIN", SELFCONF, NOFLAGS, 488 INT_MAX, "INT_MAX", SELFCONF, NOFLAGS, 489 INT_MIN, "INT_MIN", SELFCONF, NOFLAGS, 490 LONG_BIT, "LONG_BIT", SELFCONF, NOFLAGS, 491 LONG_MAX, "LONG_MAX", SELFCONF, NOFLAGS, 492 LONG_MIN, "LONG_MIN", SELFCONF, NOFLAGS, 493 MB_LEN_MAX, "MB_LEN_MAX", SELFCONF, NOFLAGS, 494 NL_NMAX, "NL_NMAX", SELFCONF, NOFLAGS, 495 NL_ARGMAX, "NL_ARGMAX", SELFCONF, NOFLAGS, 496 NL_LANGMAX, "NL_LANGMAX", SELFCONF, NOFLAGS, 497 NL_MSGMAX, "NL_MSGMAX", SELFCONF, NOFLAGS, 498 NL_SETMAX, "NL_SETMAX", SELFCONF, NOFLAGS, 499 NL_TEXTMAX, "NL_TEXTMAX", SELFCONF, NOFLAGS, 500 NZERO, "NZERO", SELFCONF, NOFLAGS, 501 SCHAR_MAX, "SCHAR_MAX", SELFCONF, NOFLAGS, 502 SCHAR_MIN, "SCHAR_MIN", SELFCONF, NOFLAGS, 503 SHRT_MAX, "SHRT_MAX", SELFCONF, NOFLAGS, 504 SHRT_MIN, "SHRT_MIN", SELFCONF, NOFLAGS, 505 TMP_MAX, "TMP_MAX", SELFCONF, NOFLAGS, 506 507 /* 508 * for the unsigned maximums, we cannot rely on the value -1 509 * to indicate "undefined". 510 */ 511 #ifndef UCHAR_MAX 512 0, "UCHAR_MAX", SELFCONF, UNDEFINED, 513 #else 514 (long)UCHAR_MAX, "UCHAR_MAX", SELFCONF, UNSIGNED_VALUE, 515 #endif /* UCHAR_MAX */ 516 #ifndef UINT_MAX 517 0, "UINT_MAX", SELFCONF, UNDEFINED, 518 #else 519 (long)UINT_MAX, "UINT_MAX", SELFCONF, UNSIGNED_VALUE, 520 #endif /* UINT_MAX */ 521 #ifndef ULONG_MAX 522 0, "ULONG_MAX", SELFCONF, UNDEFINED, 523 #else 524 (long)ULONG_MAX, "ULONG_MAX", SELFCONF, UNSIGNED_VALUE, 525 #endif /* ULONG_MAX */ 526 #ifndef USHRT_MAX 527 0, "USHRT_MAX", SELFCONF, UNDEFINED, 528 #else 529 (long)USHRT_MAX, "USHRT_MAX", SELFCONF, UNSIGNED_VALUE, 530 #endif /* USHRT_MAX */ 531 #ifndef SIZE_MAX 532 0, "SIZE_MAX", SELFCONF, UNDEFINED, 533 #else 534 (long)SIZE_MAX, "SIZE_MAX", SELFCONF, UNSIGNED_VALUE, 535 #endif /* SIZE_MAX */ 536 537 WORD_BIT, "WORD_BIT", SELFCONF, NOFLAGS, 538 539 /* XPG4 Version 2 */ 540 _XOPEN_IOV_MAX, "_XOPEN_IOV_MAX", SELFCONF, NOFLAGS, 541 542 /* UNIX 03 */ 543 _XOPEN_NAME_MAX, "_XOPEN_NAME_MAX", SELFCONF, NOFLAGS, 544 _XOPEN_PATH_MAX, "_XOPEN_PATH_MAX", SELFCONF, NOFLAGS, 545 546 /* 547 * The following are defined via sysconf(). These are considered 548 * an extension to sysconf(). 549 * The -0 is needed if _XOPEN_XPG? is defined to be an empty string. 550 */ 551 _XOPEN_XPG2-0, "_XOPEN_XPG2", SELFCONF, NOFLAGS, 552 _XOPEN_XPG3-0, "_XOPEN_XPG3", SELFCONF, NOFLAGS, 553 _XOPEN_XPG4-0, "_XOPEN_XPG4", SELFCONF, NOFLAGS, 554 555 /* 556 * The following should be provided by sysconf() (e.g use SYSCONF), 557 * so we look for the appropriate _SC_* symbol in <unistd.h>. 558 * If it is not defined, then we use SELFCONF with the value of -1. 559 */ 560 _SC_XOPEN_VERSION, "_XOPEN_VERSION", SYSCONF, NOFLAGS, 561 _SC_XOPEN_XCU_VERSION, "_XOPEN_XCU_VERSION", SYSCONF, NOFLAGS, 562 _SC_XOPEN_CRYPT, "_XOPEN_CRYPT", SYSCONF, NOFLAGS, 563 _SC_XOPEN_ENH_I18N, "_XOPEN_ENH_I18N", SYSCONF, NOFLAGS, 564 _SC_XOPEN_SHM, "_XOPEN_SHM", SYSCONF, NOFLAGS, 565 566 /* 567 * XPG4 support ends 568 */ 569 570 /* XPG4, Version 2 support */ 571 572 _SC_ATEXIT_MAX, "ATEXIT_MAX", SYSCONF, NOFLAGS, 573 _SC_PAGESIZE, "PAGESIZE", SYSCONF, NOFLAGS, 574 _SC_PAGE_SIZE, "PAGE_SIZE", SYSCONF, NOFLAGS, 575 _SC_XOPEN_UNIX, "_XOPEN_UNIX", SYSCONF, NOFLAGS, 576 _SC_IOV_MAX, "IOV_MAX", SYSCONF, NOFLAGS, 577 578 /* 579 * UNIX 98 - XPG5 additions 580 */ 581 _SC_XOPEN_LEGACY, "_XOPEN_LEGACY", SYSCONF, NOFLAGS, 582 _SC_PASS_MAX, "PASS_MAX", SYSCONF, NOFLAGS, 583 _SC_AIO_LISTIO_MAX, "AIO_LISTIO_MAX", SYSCONF, NOFLAGS, 584 _SC_AIO_MAX, "AIO_MAX", SYSCONF, NOFLAGS, 585 _SC_AIO_PRIO_DELTA_MAX, "AIO_PRIO_DELTA_MAX", SYSCONF, NOFLAGS, 586 _SC_DELAYTIMER_MAX, "DELAYTIMER_MAX", SYSCONF, NOFLAGS, 587 _SC_MQ_OPEN_MAX, "MQ_OPEN_MAX", SYSCONF, NOFLAGS, 588 _SC_MQ_PRIO_MAX, "MQ_PRIO_MAX", SYSCONF, NOFLAGS, 589 _SC_RTSIG_MAX, "RTSIG_MAX", SYSCONF, NOFLAGS, 590 _SC_SEM_NSEMS_MAX, "SEM_NSEMS_MAX", SYSCONF, NOFLAGS, 591 _SC_SEM_VALUE_MAX, "SEM_VALUE_MAX", SYSCONF, NOFLAGS, 592 _SC_SIGQUEUE_MAX, "SIGQUEUE_MAX", SYSCONF, NOFLAGS, 593 _SC_TIMER_MAX, "TIMER_MAX", SYSCONF, NOFLAGS, 594 595 _SC_ASYNCHRONOUS_IO, "_POSIX_ASYNCHRONOUS_IO", SYSCONF, NOFLAGS, 596 _SC_FSYNC, "_POSIX_FSYNC", SYSCONF, NOFLAGS, 597 _SC_MAPPED_FILES, "_POSIX_MAPPED_FILES", SYSCONF, NOFLAGS, 598 _SC_MEMLOCK, "_POSIX_MEMLOCK", SYSCONF, NOFLAGS, 599 _SC_MEMLOCK_RANGE, "_POSIX_MEMLOCK_RANGE", SYSCONF, NOFLAGS, 600 _SC_MEMORY_PROTECTION, "_POSIX_MEMORY_PROTECTION", SYSCONF, NOFLAGS, 601 _SC_MESSAGE_PASSING, "_POSIX_MESSAGE_PASSING", SYSCONF, NOFLAGS, 602 _SC_PRIORITIZED_IO, "_POSIX_PRIORITIZED_IO", SYSCONF, NOFLAGS, 603 _SC_PRIORITY_SCHEDULING, "_POSIX_PRIORITY_SCHEDULING", SYSCONF, NOFLAGS, 604 _SC_REALTIME_SIGNALS, "_POSIX_REALTIME_SIGNALS", SYSCONF, NOFLAGS, 605 _SC_SEMAPHORES, "_POSIX_SEMAPHORES", SYSCONF, NOFLAGS, 606 607 _SC_SHARED_MEMORY_OBJECTS, "_POSIX_SHARED_MEMORY_OBJECTS", 608 SYSCONF, NOFLAGS, 609 610 _SC_SYNCHRONIZED_IO, "_POSIX_SYNCHRONIZED_IO", SYSCONF, NOFLAGS, 611 _SC_TIMERS, "_POSIX_TIMERS", SYSCONF, NOFLAGS, 612 613 _SC_LOGIN_NAME_MAX, "LOGIN_NAME_MAX", SYSCONF, NOFLAGS, 614 615 _SC_THREAD_DESTRUCTOR_ITERATIONS, "PTHREAD_DESTRUCTOR_ITERATIONS", 616 SYSCONF, NOFLAGS, 617 618 _SC_THREAD_KEYS_MAX, "PTHREAD_KEYS_MAX", SYSCONF, NOFLAGS, 619 _SC_THREAD_STACK_MIN, "PTHREAD_STACK_MIN", SYSCONF, NOFLAGS, 620 _SC_THREAD_THREADS_MAX, "PTHREAD_THREADS_MAX", SYSCONF, NOFLAGS, 621 622 _SC_THREADS, "_POSIX_THREADS", SYSCONF, NOFLAGS, 623 624 _SC_THREAD_ATTR_STACKADDR, "POSIX_THREAD_ATTR_STACKADDR", 625 SYSCONF, NOFLAGS, 626 _SC_THREAD_ATTR_STACKADDR, "_POSIX_THREAD_ATTR_STACKADDR", 627 SYSCONF, NOFLAGS, 628 629 _SC_THREAD_ATTR_STACKSIZE, "POSIX_THREAD_ATTR_STACKSIZE", 630 SYSCONF, NOFLAGS, 631 _SC_THREAD_ATTR_STACKSIZE, "_POSIX_THREAD_ATTR_STACKSIZE", 632 SYSCONF, NOFLAGS, 633 634 _SC_THREAD_PRIORITY_SCHEDULING, "POSIX_THREAD_PRIORITY_SCHEDULING", 635 SYSCONF, NOFLAGS, 636 _SC_THREAD_PRIORITY_SCHEDULING, "_POSIX_THREAD_PRIORITY_SCHEDULING", 637 SYSCONF, NOFLAGS, 638 639 _SC_THREAD_PRIO_INHERIT, "POSIX_THREAD_PRIO_INHERIT", 640 SYSCONF, NOFLAGS, 641 _SC_THREAD_PRIO_INHERIT, "_POSIX_THREAD_PRIO_INHERIT", 642 SYSCONF, NOFLAGS, 643 644 _SC_THREAD_PRIO_PROTECT, "POSIX_THREAD_PRIO_PROTECT", 645 SYSCONF, NOFLAGS, 646 _SC_THREAD_PRIO_PROTECT, "_POSIX_THREAD_PRIO_PROTECT", 647 SYSCONF, NOFLAGS, 648 649 _SC_THREAD_PROCESS_SHARED, "POSIX_THREAD_PROCESS_SHARED", 650 SYSCONF, NOFLAGS, 651 _SC_THREAD_PROCESS_SHARED, "_POSIX_THREAD_PROCESS_SHARED", 652 SYSCONF, NOFLAGS, 653 654 _SC_THREAD_SAFE_FUNCTIONS, "POSIX_THREAD_SAFE_FUNCTIONS", 655 SYSCONF, NOFLAGS, 656 _SC_THREAD_SAFE_FUNCTIONS, "_POSIX_THREAD_SAFE_FUNCTIONS", 657 SYSCONF, NOFLAGS, 658 659 _SC_TTY_NAME_MAX, "TTY_NAME_MAX", SYSCONF, NOFLAGS, 660 _SC_XOPEN_REALTIME, "_XOPEN_REALTIME", SYSCONF, NOFLAGS, 661 _SC_XOPEN_REALTIME_THREADS, "_XOPEN_REALTIME_THREADS", SYSCONF, NOFLAGS, 662 663 /* 664 * Due to ambiguity in the standard we need 665 * to recognize both the underscored name 666 * and the non-underscored version in the 667 * following variables. 668 */ 669 _SC_XBS5_ILP32_OFF32, "XBS5_ILP32_OFF32", SYSCONF, NOFLAGS, 670 _SC_XBS5_ILP32_OFF32, "_XBS5_ILP32_OFF32", SYSCONF, NOFLAGS, 671 672 _SC_XBS5_ILP32_OFFBIG, "XBS5_ILP32_OFFBIG", SYSCONF, NOFLAGS, 673 _SC_XBS5_ILP32_OFFBIG, "_XBS5_ILP32_OFFBIG", SYSCONF, NOFLAGS, 674 675 _SC_XBS5_LP64_OFF64, "XBS5_LP64_OFF64", SYSCONF, NOFLAGS, 676 _SC_XBS5_LP64_OFF64, "_XBS5_LP64_OFF64", SYSCONF, NOFLAGS, 677 678 _SC_XBS5_LPBIG_OFFBIG, "XBS5_LPBIG_OFFBIG", SYSCONF, NOFLAGS, 679 _SC_XBS5_LPBIG_OFFBIG, "_XBS5_LPBIG_OFFBIG", SYSCONF, NOFLAGS, 680 681 /* 682 * UNIX 03 additions for sysconf() names, and names that are not in interfaces 683 */ 684 _SC_REGEXP, "_POSIX_REGEXP", SYSCONF, NOFLAGS, 685 _SC_SHELL, "_POSIX_SHELL", SYSCONF, NOFLAGS, 686 _SC_HOST_NAME_MAX, "HOST_NAME_MAX", SYSCONF, NOFLAGS, 687 _SC_READER_WRITER_LOCKS, "_POSIX_READER_WRITER_LOCKS", SYSCONF, NOFLAGS, 688 _SC_IPV6, "_POSIX_IPV6", SYSCONF, NOFLAGS, 689 _SC_RAW_SOCKETS, "_POSIX_RAW_SOCKETS", SYSCONF, NOFLAGS, 690 _SC_XOPEN_STREAMS, "_XOPEN_STREAMS", SYSCONF, NOFLAGS, 691 _SC_SYMLOOP_MAX, "SYMLOOP_MAX", SYSCONF, NOFLAGS, 692 _SC_2_PBS, "_POSIX2_PBS", SYSCONF, NOFLAGS, 693 _SC_2_PBS_ACCOUNTING, "_POSIX2_PBS_ACCOUNTING", SYSCONF, NOFLAGS, 694 _SC_2_PBS_CHECKPOINT, "_POSIX2_PBS_CHECKPOINT", SYSCONF, NOFLAGS, 695 _SC_2_PBS_LOCATE, "_POSIX2_PBS_LOCATE", SYSCONF, NOFLAGS, 696 _SC_2_PBS_MESSAGE, "_POSIX2_PBS_MESSAGE", SYSCONF, NOFLAGS, 697 _SC_2_PBS_TRACK, "_POSIX2_PBS_TRACK", SYSCONF, NOFLAGS, 698 699 _SC_ADVISORY_INFO, "_POSIX_ADVISORY_INFO", SYSCONF, NOFLAGS, 700 _SC_BARRIERS, "_POSIX_BARRIERS", SYSCONF, NOFLAGS, 701 _SC_CLOCK_SELECTION, "_POSIX_CLOCK_SELECTION", SYSCONF, NOFLAGS, 702 _SC_CPUTIME, "_POSIX_CPUTIME", SYSCONF, NOFLAGS, 703 _SC_MONOTONIC_CLOCK, "_POSIX_MONOTONIC_CLOCK", SYSCONF, NOFLAGS, 704 _SC_SPAWN, "_POSIX_SPAWN", SYSCONF, NOFLAGS, 705 _SC_SPIN_LOCKS, "_POSIX_SPIN_LOCKS", SYSCONF, NOFLAGS, 706 _SC_SPORADIC_SERVER, "_POSIX_SPORADIC_SERVER", SYSCONF, NOFLAGS, 707 _SC_SS_REPL_MAX, "_POSIX_SS_REPL_MAX", SYSCONF, NOFLAGS, 708 _SC_THREAD_CPUTIME, "_POSIX_THREAD_CPUTIME", SYSCONF, NOFLAGS, 709 _SC_THREAD_SPORADIC_SERVER, "_POSIX_THREAD_SPORADIC_SERVER", SYSCONF, 710 NOFLAGS, 711 _SC_TIMEOUTS, "_POSIX_TIMEOUTS", SYSCONF, NOFLAGS, 712 _SC_TRACE, "_POSIX_TRACE", SYSCONF, NOFLAGS, 713 _SC_TRACE_EVENT_FILTER, "_POSIX_TRACE_EVENT_FILTER", SYSCONF, NOFLAGS, 714 _SC_TRACE_EVENT_NAME_MAX, "_POSIX_TRACE_EVENT_NAME_MAX", SYSCONF, 715 NOFLAGS, 716 _SC_TRACE_INHERIT, "_POSIX_TRACE_INHERIT", SYSCONF, NOFLAGS, 717 _SC_TRACE_LOG, "_POSIX_TRACE_LOG", SYSCONF, NOFLAGS, 718 _SC_TRACE_NAME_MAX, "_POSIX_TRACE_NAME_MAX", SYSCONF, NOFLAGS, 719 _SC_TRACE_SYS_MAX, "_POSIX_TRACE_SYS_MAX", SYSCONF, NOFLAGS, 720 _SC_TRACE_USER_EVENT_MAX, "_POSIX_TRACE_USER_EVENT_MAX", SYSCONF, 721 NOFLAGS, 722 _SC_TYPED_MEMORY_OBJECTS, "_POSIX_TYPED_MEMORY_OBJECTS", SYSCONF, 723 NOFLAGS, 724 725 /* 726 * Due to an ambiguity in the specification, we need to recognize both 727 * the underscored POSIX name and the non-underscored name. In addition, 728 * we need to permit the use of the _V6_* environment names specified 729 * in unistd.h. 730 */ 731 _SC_V6_ILP32_OFF32, "_V6_ILP32_OFF32", SYSCONF, NOFLAGS, 732 _SC_V6_ILP32_OFF32, "_POSIX_V6_ILP32_OFF32", SYSCONF, NOFLAGS, 733 _SC_V6_ILP32_OFF32, "POSIX_V6_ILP32_OFF32", SYSCONF, NOFLAGS, 734 735 _SC_V6_ILP32_OFFBIG, "_V6_ILP32_OFFBIG", SYSCONF, NOFLAGS, 736 _SC_V6_ILP32_OFFBIG, "_POSIX_V6_ILP32_OFFBIG", SYSCONF, NOFLAGS, 737 _SC_V6_ILP32_OFFBIG, "POSIX_V6_ILP32_OFFBIG", SYSCONF, NOFLAGS, 738 739 _SC_V6_LP64_OFF64, "_V6_LP64_OFF64", SYSCONF, NOFLAGS, 740 _SC_V6_LP64_OFF64, "_POSIX_V6_LP64_OFF64", SYSCONF, NOFLAGS, 741 _SC_V6_LP64_OFF64, "POSIX_V6_LP64_OFF64", SYSCONF, NOFLAGS, 742 743 _SC_V6_LPBIG_OFFBIG, "_V6_LPBIG_OFFBIG", SYSCONF, NOFLAGS, 744 _SC_V6_LPBIG_OFFBIG, "_POSIX_V6_LPBIG_OFFBIG", SYSCONF, NOFLAGS, 745 _SC_V6_LPBIG_OFFBIG, "POSIX_V6_LPBIG_OFFBIG", SYSCONF, NOFLAGS, 746 0, NULL, 0, 0 /* end of table */ 747 }; 748 749 750 /* 751 * Print usage message. 752 */ 753 static int 754 usage() 755 { 756 757 (void) fputs(gettext( 758 "usage:\tgetconf [-v specification] system_var\n" 759 "\tgetconf [-v specification] path_var pathname\n" 760 "\tgetconf -a\n"), stderr); 761 return (2); 762 } 763 764 765 static int 766 namecmp(const void *a, const void *b) 767 { 768 return (strcoll(((const struct sctab *)a)->name, 769 ((const struct sctab *)b)->name)); 770 } 771 772 773 static int 774 getconf(struct sctab *scp, int argc, char *name, char *file) 775 { 776 register size_t len; 777 register char *buffer; 778 long value; 779 780 switch (scp->type) { 781 case SELFCONF: 782 if (argc > 2) 783 return (usage()); 784 if (scp->flag & UNDEFINED || 785 (!(scp->flag&UNSIGNED_VALUE) && scp->value == -1)) { 786 /* DO NOT TRANSLATE */ 787 (void) printf("undefined\n"); 788 } else 789 if (scp->flag & UNSIGNED_VALUE) 790 (void) printf("%lu\n", scp->value); 791 else 792 (void) printf("%ld\n", scp->value); 793 break; 794 795 case SYSCONF: 796 if (argc > 2) 797 return (usage()); 798 errno = 0; 799 if (scp->flag & UNDEFINED || 800 (value = sysconf((int)scp->value)) == -1) { 801 if (errno == EINVAL) { 802 (void) fprintf(stderr, 803 gettext(INVAL_ARG), name); 804 return (1); 805 } else { 806 /* DO NOT TRANSLATE */ 807 (void) printf("undefined\n"); 808 return (0); 809 } 810 } else 811 (void) printf("%ld\n", value); 812 break; 813 814 case CONFSTR: 815 if (argc > 2) 816 return (usage()); 817 errno = 0; 818 len = confstr((int)scp->value, NULL, (size_t)0); 819 if (len == 0) 820 if (errno == EINVAL) { 821 (void) fprintf(stderr, gettext(INVAL_ARG), 822 name); 823 return (1); 824 } else { 825 /* DO NOT TRANSLATE */ 826 (void) printf("undefined\n"); 827 return (0); 828 } 829 /* 830 * allocate space to store result of constr() into 831 */ 832 if ((buffer = malloc(len)) == NULL) { 833 (void) fprintf(stderr, 834 gettext("insufficient memory available")); 835 return (1); 836 } 837 838 assert(confstr((int)scp->value, buffer, len) != 0); 839 840 (void) printf("%s\n", buffer); 841 free(buffer); 842 break; 843 844 case PATHCONF: 845 if (argc != 3) 846 return (usage()); 847 errno = 0; 848 if ((value = pathconf(file, (int)scp->value)) == -1) { 849 if (errno == EINVAL || errno == 0) { 850 /* Does not support the association */ 851 /* DO NOT TRANSLATE */ 852 (void) printf("undefined\n"); 853 return (0); 854 } else { 855 /* Probably problems with the pathname itself */ 856 if (aflag) { 857 (void) printf("%s\n", file); 858 } else { 859 (void) printf("%s", file); 860 } 861 return (1); 862 } 863 } 864 (void) printf("%ld\n", value); 865 break; 866 } 867 return (0); 868 } 869 870 int 871 main(int argc, char **argv) 872 { 873 register struct sctab *scp; 874 int c; 875 int exstat = 0; 876 877 (void) setlocale(LC_ALL, ""); 878 #if !defined(TEXT_DOMAIN) /* Should be defined by cc -D */ 879 #define TEXT_DOMAIN "SYS_TEST" 880 #endif 881 (void) textdomain(TEXT_DOMAIN); 882 883 while ((c = getopt(argc, argv, "av:")) != -1) 884 switch (c) { 885 case 'a': 886 aflag = 1; 887 break; 888 case 'v': 889 /* 890 * Unix98 adds the -v option to allow 891 * programming 'specifications' to be 892 * indicated, for present purposes 893 * the specification isn't really 894 * doing anything of value, so for 895 * the moment getopt just processes the 896 * option value and argv[1] is adjusted. 897 * 898 * At some later date we might want to 899 * do specification processing at this 900 * point. 901 */ 902 break; 903 case '?': 904 return (usage()); 905 } 906 argc -= optind-1; 907 argv += optind-1; 908 909 if ((aflag && argc >= 2) || (!aflag && argc < 2)) 910 return (usage()); 911 if (aflag) { 912 913 #define TabStop 8 914 #define RightColumn 32 915 #define DefPathName "." 916 917 /* 918 * sort the table by the "name" field 919 * so we print it in sorted order 920 */ 921 qsort(&sctab[0], (sizeof (sctab)/sizeof (struct sctab))-1, 922 sizeof (struct sctab), namecmp); 923 924 /* 925 * print all the known symbols and their values 926 */ 927 for (scp = &sctab[0]; scp->name != NULL; ++scp) { 928 int stat; 929 930 /* 931 * create 2 columns: 932 * variable name in the left column, 933 * value in the right column. 934 * The right column starts at a tab stop. 935 */ 936 (void) printf("%s:\t", scp->name); 937 938 c = strlen(scp->name) + 1; 939 c = (c+TabStop) / TabStop, c *= TabStop; 940 for (; c < RightColumn; c += TabStop) 941 (void) putchar('\t'); 942 943 /* 944 * for pathconf() related variables that require 945 * a pathname, use "." 946 */ 947 stat = getconf(scp, scp->type == PATHCONF ? 3 : 2, 948 scp->name, DefPathName); 949 950 exstat |= stat; 951 952 /* 953 * if stat != 0, then an error message was already 954 * printed in getconf(), 955 * so don't need to print one here 956 */ 957 } 958 } else { 959 960 /* 961 * find the name of the specified variable (argv[1]) 962 * and print its value. 963 */ 964 for (scp = &sctab[0]; scp->name != NULL; ++scp) 965 if (strcmp(argv[1], scp->name) == 0) { 966 exstat = getconf(scp, argc, argv[1], argv[2]); 967 break; 968 } 969 970 /* 971 * if at last entry in table, then the user specified 972 * variable is invalid 973 */ 974 if (scp->name == NULL) { 975 errno = EINVAL; 976 (void) fprintf(stderr, gettext(INVAL_ARG), argv[1]); 977 return (1); 978 } 979 } 980 return (exstat); 981 } 982