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 }