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 _PC_XATTR_ENABLED, "XATTR_ENABLED", PATHCONF, NOFLAGS,
225 _PC_XATTR_EXISTS, "XATTR_EXISTS", PATHCONF, NOFLAGS,
226
227 /* UNIX 03 Additions */
228
229 /* Advisory Information (ADV) */
230 _PC_ALLOC_SIZE_MIN, "POSIX_ALLOC_SIZE_MIN", PATHCONF, NOFLAGS,
231 _PC_REC_INCR_XFER_SIZE, "POSIX_REC_INCR_XFER_SIZE", PATHCONF, NOFLAGS,
232 _PC_REC_MAX_XFER_SIZE, "POSIX_REC_MAX_XFER_SIZE", PATHCONF, NOFLAGS,
233 _PC_REC_MIN_XFER_SIZE, "POSIX_REC_MIN_XFER_SIZE", PATHCONF, NOFLAGS,
234 _PC_REC_XFER_ALIGN, "POSIX_REC_XFER_ALIGN", PATHCONF, NOFLAGS,
235
236 _PC_2_SYMLINKS, "POSIX2_SYMLINKS", PATHCONF, NOFLAGS,
237 _PC_SYMLINK_MAX, "SYMLINK_MAX", PATHCONF, NOFLAGS,
238
239 _PC_ACL_ENABLED, "ACL_ENABLED", PATHCONF, NOFLAGS,
240 _PC_MIN_HOLE_SIZE, "MIN_HOLE_SIZE", PATHCONF, NOFLAGS,
241 _PC_SATTR_ENABLED, "SATTR_ENABLED", PATHCONF, NOFLAGS,
242 _PC_SATTR_EXISTS, "SATTR_EXISTS", PATHCONF, NOFLAGS,
243
244 /* UNIX 08 additions */
245
246 _PC_TIMESTAMP_RESOLUTION, "_POSIX_TIMESTAMP_RESOLUTION",
247 PATHCONF, NOFLAGS,
248
249 /* confstr() variables */
250
251 /* POSIX.2-1992 description of getconf utility */
252 _CS_PATH, "PATH", CONFSTR, NOFLAGS,
253
254 /* POSIX.2-1992 table B-18 */
255 _CS_PATH, "CS_PATH", CONFSTR, NOFLAGS,
256 _CS_PATH, "_CS_PATH", CONFSTR, NOFLAGS,
257
258 /* command names for large file configuration information */
259 /* large file compilation environment configuration */
260
261 _CS_LFS_CFLAGS, "LFS_CFLAGS", CONFSTR, NOFLAGS,
262 _CS_LFS_LDFLAGS, "LFS_LDFLAGS", CONFSTR, NOFLAGS,
263 _CS_LFS_LIBS, "LFS_LIBS", CONFSTR, NOFLAGS,
264 _CS_LFS_LINTFLAGS, "LFS_LINTFLAGS", CONFSTR, NOFLAGS,
265
266 /* transitional large file interface configuration */
267
268 _CS_LFS64_CFLAGS, "LFS64_CFLAGS", CONFSTR, NOFLAGS,
269 _CS_LFS64_LDFLAGS, "LFS64_LDFLAGS", CONFSTR, NOFLAGS,
270 _CS_LFS64_LIBS, "LFS64_LIBS", CONFSTR, NOFLAGS,
271 _CS_LFS64_LINTFLAGS, "LFS64_LINTFLAGS", CONFSTR, NOFLAGS,
272
273 /*
274 * UNIX 98:
275 * confstr additions, these support
276 * programming specifications/environments.
277 *
278 * Unfortunately there is some uncertainty with
279 * the standard at this point about the constant
280 * name, thus we need to recognize BOTH with and
281 * without the initial underscore.
282 */
283 _CS_XBS5_ILP32_OFF32_CFLAGS, "XBS5_ILP32_OFF32_CFLAGS",
284 CONFSTR, NOFLAGS,
285 _CS_XBS5_ILP32_OFF32_CFLAGS, "_XBS5_ILP32_OFF32_CFLAGS",
286 CONFSTR, NOFLAGS,
287
288 _CS_XBS5_ILP32_OFF32_LDFLAGS, "XBS5_ILP32_OFF32_LDFLAGS",
289 CONFSTR, NOFLAGS,
290 _CS_XBS5_ILP32_OFF32_LDFLAGS, "_XBS5_ILP32_OFF32_LDFLAGS",
291 CONFSTR, NOFLAGS,
292
293 _CS_XBS5_ILP32_OFF32_LIBS, "XBS5_ILP32_OFF32_LIBS",
294 CONFSTR, NOFLAGS,
295 _CS_XBS5_ILP32_OFF32_LIBS, "_XBS5_ILP32_OFF32_LIBS",
296 CONFSTR, NOFLAGS,
297
298 _CS_XBS5_ILP32_OFF32_LINTFLAGS, "XBS5_ILP32_OFF32_LINTFLAGS",
299 CONFSTR, NOFLAGS,
300 _CS_XBS5_ILP32_OFF32_LINTFLAGS, "_XBS5_ILP32_OFF32_LINTFLAGS",
301 CONFSTR, NOFLAGS,
302
303 _CS_XBS5_ILP32_OFFBIG_CFLAGS, "XBS5_ILP32_OFFBIG_CFLAGS",
304 CONFSTR, NOFLAGS,
305 _CS_XBS5_ILP32_OFFBIG_CFLAGS, "_XBS5_ILP32_OFFBIG_CFLAGS",
306 CONFSTR, NOFLAGS,
307
308 _CS_XBS5_ILP32_OFFBIG_LDFLAGS, "XBS5_ILP32_OFFBIG_LDFLAGS",
309 CONFSTR, NOFLAGS,
310 _CS_XBS5_ILP32_OFFBIG_LDFLAGS, "_XBS5_ILP32_OFFBIG_LDFLAGS",
311 CONFSTR, NOFLAGS,
312
313 _CS_XBS5_ILP32_OFFBIG_LIBS, "XBS5_ILP32_OFFBIG_LIBS",
314 CONFSTR, NOFLAGS,
315 _CS_XBS5_ILP32_OFFBIG_LIBS, "_XBS5_ILP32_OFFBIG_LIBS",
316 CONFSTR, NOFLAGS,
317
318 _CS_XBS5_ILP32_OFFBIG_LINTFLAGS, "XBS5_ILP32_OFFBIG_LINTFLAGS",
319 CONFSTR, NOFLAGS,
320 _CS_XBS5_ILP32_OFFBIG_LINTFLAGS, "_XBS5_ILP32_OFFBIG_LINTFLAGS",
321 CONFSTR, NOFLAGS,
322
323 _CS_XBS5_LP64_OFF64_CFLAGS, "XBS5_LP64_OFF64_CFLAGS",
324 CONFSTR, NOFLAGS,
325 _CS_XBS5_LP64_OFF64_CFLAGS, "_XBS5_LP64_OFF64_CFLAGS",
326 CONFSTR, NOFLAGS,
327
328 _CS_XBS5_LP64_OFF64_LDFLAGS, "XBS5_LP64_OFF64_LDFLAGS",
329 CONFSTR, NOFLAGS,
330 _CS_XBS5_LP64_OFF64_LDFLAGS, "_XBS5_LP64_OFF64_LDFLAGS",
331 CONFSTR, NOFLAGS,
332
333 _CS_XBS5_LP64_OFF64_LIBS, "XBS5_LP64_OFF64_LIBS",
334 CONFSTR, NOFLAGS,
335 _CS_XBS5_LP64_OFF64_LIBS, "_XBS5_LP64_OFF64_LIBS",
336 CONFSTR, NOFLAGS,
337
338 _CS_XBS5_LP64_OFF64_LINTFLAGS, "XBS5_LP64_OFF64_LINTFLAGS",
339 CONFSTR, NOFLAGS,
340 _CS_XBS5_LP64_OFF64_LINTFLAGS, "_XBS5_LP64_OFF64_LINTFLAGS",
341 CONFSTR, NOFLAGS,
342
343 _CS_XBS5_LPBIG_OFFBIG_CFLAGS, "XBS5_LPBIG_OFFBIG_CFLAGS",
344 CONFSTR, NOFLAGS,
345 _CS_XBS5_LPBIG_OFFBIG_CFLAGS, "_XBS5_LPBIG_OFFBIG_CFLAGS",
346 CONFSTR, NOFLAGS,
347
348 _CS_XBS5_LPBIG_OFFBIG_LDFLAGS, "XBS5_LPBIG_OFFBIG_LDFLAGS",
349 CONFSTR, NOFLAGS,
350 _CS_XBS5_LPBIG_OFFBIG_LDFLAGS, "_XBS5_LPBIG_OFFBIG_LDFLAGS",
351 CONFSTR, NOFLAGS,
352
353 _CS_XBS5_LPBIG_OFFBIG_LIBS, "XBS5_LPBIG_OFFBIG_LIBS",
354 CONFSTR, NOFLAGS,
355 _CS_XBS5_LPBIG_OFFBIG_LIBS, "_XBS5_LPBIG_OFFBIG_LIBS",
356 CONFSTR, NOFLAGS,
357
358 _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS, "XBS5_LPBIG_OFFBIG_LINTFLAGS",
359 CONFSTR, NOFLAGS,
360 _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS, "_XBS5_LPBIG_OFFBIG_LINTFLAGS",
361 CONFSTR, NOFLAGS,
362
363 /*
364 * UNIX 03 confstr() additions for compilation environments
365 */
366 _CS_POSIX_V6_ILP32_OFF32_CFLAGS, "POSIX_V6_ILP32_OFF32_CFLAGS",
367 CONFSTR, NOFLAGS,
368 _CS_POSIX_V6_ILP32_OFF32_LDFLAGS, "POSIX_V6_ILP32_OFF32_LDFLAGS",
369 CONFSTR, NOFLAGS,
370 _CS_POSIX_V6_ILP32_OFF32_LIBS, "POSIX_V6_ILP32_OFF32_LIBS",
371 CONFSTR, NOFLAGS,
372 _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS, "POSIX_V6_ILP32_OFFBIG_CFLAGS",
373 CONFSTR, NOFLAGS,
374 _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS, "POSIX_V6_ILP32_OFFBIG_LDFLAGS",
375 CONFSTR, NOFLAGS,
376 _CS_POSIX_V6_ILP32_OFFBIG_LIBS, "POSIX_V6_ILP32_OFFBIG_LIBS",
377 CONFSTR, NOFLAGS,
378 _CS_POSIX_V6_LP64_OFF64_CFLAGS, "POSIX_V6_LP64_OFF64_CFLAGS",
379 CONFSTR, NOFLAGS,
380 _CS_POSIX_V6_LP64_OFF64_LDFLAGS, "POSIX_V6_LP64_OFF64_LDFLAGS",
381 CONFSTR, NOFLAGS,
382 _CS_POSIX_V6_LP64_OFF64_LIBS, "POSIX_V6_LP64_OFF64_LIBS",
383 CONFSTR, NOFLAGS,
384 _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS, "POSIX_V6_LPBIG_OFFBIG_CFLAGS",
385 CONFSTR, NOFLAGS,
386 _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS, "POSIX_V6_LPBIG_OFFBIG_LDFLAGS",
387 CONFSTR, NOFLAGS,
388 _CS_POSIX_V6_LPBIG_OFFBIG_LIBS, "POSIX_V6_LPBIG_OFFBIG_LIBS",
389 CONFSTR, NOFLAGS,
390 _CS_POSIX_V6_WIDTH_RESTRICTED_ENVS, "POSIX_V6_WIDTH_RESTRICTED_ENVS",
391 CONFSTR, NOFLAGS,
392 /* End of UNIX 03 compilation environments */
393
394 #ifdef _SC_2_C_VERSION /* POSIX.2 table B-4 */
395 _SC_2_C_VERSION, "_POSIX2_C_VERSION", SYSCONF, NOFLAGS,
396 #else
397 _POSIX2_C_VERSION, "_POSIX2_C_VERSION", SELFCONF, NOFLAGS,
398 #endif
399
400 /*
401 * XPG4 support BEGINS
402 */
403
404 #ifndef CHARCLASS_NAME_MAX
405 #define CHARCLASS_NAME_MAX -1
406 #endif
407 #ifndef CHAR_BIT
408 #define CHAR_BIT -1
409 #endif
410 #ifndef CHAR_MAX
411 #define CHAR_MAX -1
412 #endif
413 #ifndef CHAR_MIN
414 #define CHAR_MIN -1
415 #endif
416 #ifndef INT_MAX
417 #define INT_MAX -1
418 #endif
419 #ifndef INT_MIN
420 #define INT_MIN -1
421 #endif
422 #ifndef LONG_BIT
423 #define LONG_BIT -1
424 #endif
425 #ifndef LONG_MAX
426 #define LONG_MAX -1
427 #endif
428 #ifndef LONG_MIN
429 #define LONG_MIN -1
430 #endif
431 #ifndef MB_LEN_MAX
432 #define MB_LEN_MAX -1
433 #endif
434 #ifndef NL_NMAX
435 #define NL_NMAX -1
436 #endif
437 #ifndef NL_ARGMAX
438 #define NL_ARGMAX -1
439 #endif
440 #ifndef NL_LANGMAX
441 #define NL_LANGMAX -1
442 #endif
443 #ifndef NL_MSGMAX
444 #define NL_MSGMAX -1
445 #endif
446 #ifndef NL_SETMAX
447 #define NL_SETMAX -1
448 #endif
449 #ifndef NL_TEXTMAX
450 #define NL_TEXTMAX -1
451 #endif
452 #ifndef NZERO
453 #define NZERO -1
454 #endif
455 #ifndef SCHAR_MAX
456 #define SCHAR_MAX -1
457 #endif
458 #ifndef SCHAR_MIN
459 #define SCHAR_MIN -1
460 #endif
461 #ifndef SHRT_MAX
462 #define SHRT_MAX -1
463 #endif
464 #ifndef SHRT_MIN
465 #define SHRT_MIN -1
466 #endif
467 #ifndef TMP_MAX
468 #define TMP_MAX -1
469 #endif
470 #ifndef WORD_BIT
471 #define WORD_BIT -1
472 #endif
473
474
475 #ifndef _XOPEN_XPG2
476 #define _XOPEN_XPG2 -1
477 #endif
478 #ifndef _XOPEN_XPG3
479 #define _XOPEN_XPG3 -1
480 #endif
481 #ifndef _XOPEN_XPG4
482 #define _XOPEN_XPG4 -1
483 #endif
484
485 /*
486 * the following are values that we should find in <limits.h>
487 * so we use SELFCONF here.
488 *
489 */
490
491 /* POSIX.1-1990 */
492 CHARCLASS_NAME_MAX, "CHARCLASS_NAME_MAX", SELFCONF, NOFLAGS,
493 SSIZE_MAX, "SSIZE_MAX", SELFCONF, NOFLAGS,
494
495 /* POSIX.1-1988 */
496 CHAR_BIT, "CHAR_BIT", SELFCONF, NOFLAGS,
497 CHAR_MAX, "CHAR_MAX", SELFCONF, NOFLAGS,
498 CHAR_MIN, "CHAR_MIN", SELFCONF, NOFLAGS,
499 INT_MAX, "INT_MAX", SELFCONF, NOFLAGS,
500 INT_MIN, "INT_MIN", SELFCONF, NOFLAGS,
501 LONG_BIT, "LONG_BIT", SELFCONF, NOFLAGS,
502 LONG_MAX, "LONG_MAX", SELFCONF, NOFLAGS,
503 LONG_MIN, "LONG_MIN", SELFCONF, NOFLAGS,
504 MB_LEN_MAX, "MB_LEN_MAX", SELFCONF, NOFLAGS,
505 NL_NMAX, "NL_NMAX", SELFCONF, NOFLAGS,
506 NL_ARGMAX, "NL_ARGMAX", SELFCONF, NOFLAGS,
507 NL_LANGMAX, "NL_LANGMAX", SELFCONF, NOFLAGS,
508 NL_MSGMAX, "NL_MSGMAX", SELFCONF, NOFLAGS,
509 NL_SETMAX, "NL_SETMAX", SELFCONF, NOFLAGS,
510 NL_TEXTMAX, "NL_TEXTMAX", SELFCONF, NOFLAGS,
511 NZERO, "NZERO", SELFCONF, NOFLAGS,
512 SCHAR_MAX, "SCHAR_MAX", SELFCONF, NOFLAGS,
513 SCHAR_MIN, "SCHAR_MIN", SELFCONF, NOFLAGS,
514 SHRT_MAX, "SHRT_MAX", SELFCONF, NOFLAGS,
515 SHRT_MIN, "SHRT_MIN", SELFCONF, NOFLAGS,
516 TMP_MAX, "TMP_MAX", SELFCONF, NOFLAGS,
517
518 /*
519 * for the unsigned maximums, we cannot rely on the value -1
520 * to indicate "undefined".
521 */
522 #ifndef UCHAR_MAX
523 0, "UCHAR_MAX", SELFCONF, UNDEFINED,
524 #else
525 (long)UCHAR_MAX, "UCHAR_MAX", SELFCONF, UNSIGNED_VALUE,
526 #endif /* UCHAR_MAX */
527 #ifndef UINT_MAX
528 0, "UINT_MAX", SELFCONF, UNDEFINED,
529 #else
530 (long)UINT_MAX, "UINT_MAX", SELFCONF, UNSIGNED_VALUE,
531 #endif /* UINT_MAX */
532 #ifndef ULONG_MAX
533 0, "ULONG_MAX", SELFCONF, UNDEFINED,
534 #else
535 (long)ULONG_MAX, "ULONG_MAX", SELFCONF, UNSIGNED_VALUE,
536 #endif /* ULONG_MAX */
537 #ifndef USHRT_MAX
538 0, "USHRT_MAX", SELFCONF, UNDEFINED,
539 #else
540 (long)USHRT_MAX, "USHRT_MAX", SELFCONF, UNSIGNED_VALUE,
541 #endif /* USHRT_MAX */
542 #ifndef SIZE_MAX
543 0, "SIZE_MAX", SELFCONF, UNDEFINED,
544 #else
545 (long)SIZE_MAX, "SIZE_MAX", SELFCONF, UNSIGNED_VALUE,
546 #endif /* SIZE_MAX */
547
548 WORD_BIT, "WORD_BIT", SELFCONF, NOFLAGS,
549
550 /* XPG4 Version 2 */
551 _XOPEN_IOV_MAX, "_XOPEN_IOV_MAX", SELFCONF, NOFLAGS,
552
553 /* UNIX 03 */
554 _XOPEN_NAME_MAX, "_XOPEN_NAME_MAX", SELFCONF, NOFLAGS,
555 _XOPEN_PATH_MAX, "_XOPEN_PATH_MAX", SELFCONF, NOFLAGS,
556
557 /*
558 * The following are defined via sysconf(). These are considered
559 * an extension to sysconf().
560 * The -0 is needed if _XOPEN_XPG? is defined to be an empty string.
561 */
562 _XOPEN_XPG2-0, "_XOPEN_XPG2", SELFCONF, NOFLAGS,
563 _XOPEN_XPG3-0, "_XOPEN_XPG3", SELFCONF, NOFLAGS,
564 _XOPEN_XPG4-0, "_XOPEN_XPG4", SELFCONF, NOFLAGS,
565
566 /*
567 * The following should be provided by sysconf() (e.g use SYSCONF),
568 * so we look for the appropriate _SC_* symbol in <unistd.h>.
569 * If it is not defined, then we use SELFCONF with the value of -1.
570 */
571 _SC_XOPEN_VERSION, "_XOPEN_VERSION", SYSCONF, NOFLAGS,
572 _SC_XOPEN_XCU_VERSION, "_XOPEN_XCU_VERSION", SYSCONF, NOFLAGS,
573 _SC_XOPEN_CRYPT, "_XOPEN_CRYPT", SYSCONF, NOFLAGS,
574 _SC_XOPEN_ENH_I18N, "_XOPEN_ENH_I18N", SYSCONF, NOFLAGS,
575 _SC_XOPEN_SHM, "_XOPEN_SHM", SYSCONF, NOFLAGS,
576
577 /*
578 * XPG4 support ends
579 */
580
581 /* XPG4, Version 2 support */
582
583 _SC_ATEXIT_MAX, "ATEXIT_MAX", SYSCONF, NOFLAGS,
584 _SC_PAGESIZE, "PAGESIZE", SYSCONF, NOFLAGS,
585 _SC_PAGE_SIZE, "PAGE_SIZE", SYSCONF, NOFLAGS,
586 _SC_XOPEN_UNIX, "_XOPEN_UNIX", SYSCONF, NOFLAGS,
587 _SC_IOV_MAX, "IOV_MAX", SYSCONF, NOFLAGS,
588
589 /*
590 * UNIX 98 - XPG5 additions
591 */
592 _SC_XOPEN_LEGACY, "_XOPEN_LEGACY", SYSCONF, NOFLAGS,
593 _SC_PASS_MAX, "PASS_MAX", SYSCONF, NOFLAGS,
594 _SC_AIO_LISTIO_MAX, "AIO_LISTIO_MAX", SYSCONF, NOFLAGS,
595 _SC_AIO_MAX, "AIO_MAX", SYSCONF, NOFLAGS,
596 _SC_AIO_PRIO_DELTA_MAX, "AIO_PRIO_DELTA_MAX", SYSCONF, NOFLAGS,
597 _SC_DELAYTIMER_MAX, "DELAYTIMER_MAX", SYSCONF, NOFLAGS,
598 _SC_MQ_OPEN_MAX, "MQ_OPEN_MAX", SYSCONF, NOFLAGS,
599 _SC_MQ_PRIO_MAX, "MQ_PRIO_MAX", SYSCONF, NOFLAGS,
600 _SC_RTSIG_MAX, "RTSIG_MAX", SYSCONF, NOFLAGS,
601 _SC_SEM_NSEMS_MAX, "SEM_NSEMS_MAX", SYSCONF, NOFLAGS,
602 _SC_SEM_VALUE_MAX, "SEM_VALUE_MAX", SYSCONF, NOFLAGS,
603 _SC_SIGQUEUE_MAX, "SIGQUEUE_MAX", SYSCONF, NOFLAGS,
604 _SC_TIMER_MAX, "TIMER_MAX", SYSCONF, NOFLAGS,
605
606 _SC_ASYNCHRONOUS_IO, "_POSIX_ASYNCHRONOUS_IO", SYSCONF, NOFLAGS,
607 _SC_FSYNC, "_POSIX_FSYNC", SYSCONF, NOFLAGS,
608 _SC_MAPPED_FILES, "_POSIX_MAPPED_FILES", SYSCONF, NOFLAGS,
609 _SC_MEMLOCK, "_POSIX_MEMLOCK", SYSCONF, NOFLAGS,
610 _SC_MEMLOCK_RANGE, "_POSIX_MEMLOCK_RANGE", SYSCONF, NOFLAGS,
611 _SC_MEMORY_PROTECTION, "_POSIX_MEMORY_PROTECTION", SYSCONF, NOFLAGS,
612 _SC_MESSAGE_PASSING, "_POSIX_MESSAGE_PASSING", SYSCONF, NOFLAGS,
613 _SC_PRIORITIZED_IO, "_POSIX_PRIORITIZED_IO", SYSCONF, NOFLAGS,
614 _SC_PRIORITY_SCHEDULING, "_POSIX_PRIORITY_SCHEDULING", SYSCONF, NOFLAGS,
615 _SC_REALTIME_SIGNALS, "_POSIX_REALTIME_SIGNALS", SYSCONF, NOFLAGS,
616 _SC_SEMAPHORES, "_POSIX_SEMAPHORES", SYSCONF, NOFLAGS,
617
618 _SC_SHARED_MEMORY_OBJECTS, "_POSIX_SHARED_MEMORY_OBJECTS",
619 SYSCONF, NOFLAGS,
620
621 _SC_SYNCHRONIZED_IO, "_POSIX_SYNCHRONIZED_IO", SYSCONF, NOFLAGS,
622 _SC_TIMERS, "_POSIX_TIMERS", SYSCONF, NOFLAGS,
623
624 _SC_LOGIN_NAME_MAX, "LOGIN_NAME_MAX", SYSCONF, NOFLAGS,
625
626 _SC_THREAD_DESTRUCTOR_ITERATIONS, "PTHREAD_DESTRUCTOR_ITERATIONS",
627 SYSCONF, NOFLAGS,
628
629 _SC_THREAD_KEYS_MAX, "PTHREAD_KEYS_MAX", SYSCONF, NOFLAGS,
630 _SC_THREAD_STACK_MIN, "PTHREAD_STACK_MIN", SYSCONF, NOFLAGS,
631 _SC_THREAD_THREADS_MAX, "PTHREAD_THREADS_MAX", SYSCONF, NOFLAGS,
632
633 _SC_THREADS, "_POSIX_THREADS", SYSCONF, NOFLAGS,
634
635 _SC_THREAD_ATTR_STACKADDR, "POSIX_THREAD_ATTR_STACKADDR",
636 SYSCONF, NOFLAGS,
637 _SC_THREAD_ATTR_STACKADDR, "_POSIX_THREAD_ATTR_STACKADDR",
638 SYSCONF, NOFLAGS,
639
640 _SC_THREAD_ATTR_STACKSIZE, "POSIX_THREAD_ATTR_STACKSIZE",
641 SYSCONF, NOFLAGS,
642 _SC_THREAD_ATTR_STACKSIZE, "_POSIX_THREAD_ATTR_STACKSIZE",
643 SYSCONF, NOFLAGS,
644
645 _SC_THREAD_PRIORITY_SCHEDULING, "POSIX_THREAD_PRIORITY_SCHEDULING",
646 SYSCONF, NOFLAGS,
647 _SC_THREAD_PRIORITY_SCHEDULING, "_POSIX_THREAD_PRIORITY_SCHEDULING",
648 SYSCONF, NOFLAGS,
649
650 _SC_THREAD_PRIO_INHERIT, "POSIX_THREAD_PRIO_INHERIT",
651 SYSCONF, NOFLAGS,
652 _SC_THREAD_PRIO_INHERIT, "_POSIX_THREAD_PRIO_INHERIT",
653 SYSCONF, NOFLAGS,
654
655 _SC_THREAD_PRIO_PROTECT, "POSIX_THREAD_PRIO_PROTECT",
656 SYSCONF, NOFLAGS,
657 _SC_THREAD_PRIO_PROTECT, "_POSIX_THREAD_PRIO_PROTECT",
658 SYSCONF, NOFLAGS,
659
660 _SC_THREAD_PROCESS_SHARED, "POSIX_THREAD_PROCESS_SHARED",
661 SYSCONF, NOFLAGS,
662 _SC_THREAD_PROCESS_SHARED, "_POSIX_THREAD_PROCESS_SHARED",
663 SYSCONF, NOFLAGS,
664
665 _SC_THREAD_SAFE_FUNCTIONS, "POSIX_THREAD_SAFE_FUNCTIONS",
666 SYSCONF, NOFLAGS,
667 _SC_THREAD_SAFE_FUNCTIONS, "_POSIX_THREAD_SAFE_FUNCTIONS",
668 SYSCONF, NOFLAGS,
669
670 _SC_TTY_NAME_MAX, "TTY_NAME_MAX", SYSCONF, NOFLAGS,
671 _SC_XOPEN_REALTIME, "_XOPEN_REALTIME", SYSCONF, NOFLAGS,
672 _SC_XOPEN_REALTIME_THREADS, "_XOPEN_REALTIME_THREADS", SYSCONF, NOFLAGS,
673
674 /*
675 * Due to ambiguity in the standard we need
676 * to recognize both the underscored name
677 * and the non-underscored version in the
678 * following variables.
679 */
680 _SC_XBS5_ILP32_OFF32, "XBS5_ILP32_OFF32", SYSCONF, NOFLAGS,
681 _SC_XBS5_ILP32_OFF32, "_XBS5_ILP32_OFF32", SYSCONF, NOFLAGS,
682
683 _SC_XBS5_ILP32_OFFBIG, "XBS5_ILP32_OFFBIG", SYSCONF, NOFLAGS,
684 _SC_XBS5_ILP32_OFFBIG, "_XBS5_ILP32_OFFBIG", SYSCONF, NOFLAGS,
685
686 _SC_XBS5_LP64_OFF64, "XBS5_LP64_OFF64", SYSCONF, NOFLAGS,
687 _SC_XBS5_LP64_OFF64, "_XBS5_LP64_OFF64", SYSCONF, NOFLAGS,
688
689 _SC_XBS5_LPBIG_OFFBIG, "XBS5_LPBIG_OFFBIG", SYSCONF, NOFLAGS,
690 _SC_XBS5_LPBIG_OFFBIG, "_XBS5_LPBIG_OFFBIG", SYSCONF, NOFLAGS,
691
692 /*
693 * UNIX 03 additions for sysconf() names, and names that are not in interfaces
694 */
695 _SC_REGEXP, "_POSIX_REGEXP", SYSCONF, NOFLAGS,
696 _SC_SHELL, "_POSIX_SHELL", SYSCONF, NOFLAGS,
697 _SC_HOST_NAME_MAX, "HOST_NAME_MAX", SYSCONF, NOFLAGS,
698 _SC_READER_WRITER_LOCKS, "_POSIX_READER_WRITER_LOCKS", SYSCONF, NOFLAGS,
699 _SC_IPV6, "_POSIX_IPV6", SYSCONF, NOFLAGS,
700 _SC_RAW_SOCKETS, "_POSIX_RAW_SOCKETS", SYSCONF, NOFLAGS,
701 _SC_XOPEN_STREAMS, "_XOPEN_STREAMS", SYSCONF, NOFLAGS,
702 _SC_SYMLOOP_MAX, "SYMLOOP_MAX", SYSCONF, NOFLAGS,
703 _SC_2_PBS, "_POSIX2_PBS", SYSCONF, NOFLAGS,
704 _SC_2_PBS_ACCOUNTING, "_POSIX2_PBS_ACCOUNTING", SYSCONF, NOFLAGS,
705 _SC_2_PBS_CHECKPOINT, "_POSIX2_PBS_CHECKPOINT", SYSCONF, NOFLAGS,
706 _SC_2_PBS_LOCATE, "_POSIX2_PBS_LOCATE", SYSCONF, NOFLAGS,
707 _SC_2_PBS_MESSAGE, "_POSIX2_PBS_MESSAGE", SYSCONF, NOFLAGS,
708 _SC_2_PBS_TRACK, "_POSIX2_PBS_TRACK", SYSCONF, NOFLAGS,
709
710 _SC_ADVISORY_INFO, "_POSIX_ADVISORY_INFO", SYSCONF, NOFLAGS,
711 _SC_BARRIERS, "_POSIX_BARRIERS", SYSCONF, NOFLAGS,
712 _SC_CLOCK_SELECTION, "_POSIX_CLOCK_SELECTION", SYSCONF, NOFLAGS,
713 _SC_CPUTIME, "_POSIX_CPUTIME", SYSCONF, NOFLAGS,
714 _SC_MONOTONIC_CLOCK, "_POSIX_MONOTONIC_CLOCK", SYSCONF, NOFLAGS,
715 _SC_SPAWN, "_POSIX_SPAWN", SYSCONF, NOFLAGS,
716 _SC_SPIN_LOCKS, "_POSIX_SPIN_LOCKS", SYSCONF, NOFLAGS,
717 _SC_SPORADIC_SERVER, "_POSIX_SPORADIC_SERVER", SYSCONF, NOFLAGS,
718 _SC_SS_REPL_MAX, "_POSIX_SS_REPL_MAX", SYSCONF, NOFLAGS,
719 _SC_THREAD_CPUTIME, "_POSIX_THREAD_CPUTIME", SYSCONF, NOFLAGS,
720 _SC_THREAD_SPORADIC_SERVER, "_POSIX_THREAD_SPORADIC_SERVER", SYSCONF,
721 NOFLAGS,
722 _SC_TIMEOUTS, "_POSIX_TIMEOUTS", SYSCONF, NOFLAGS,
723 _SC_TRACE, "_POSIX_TRACE", SYSCONF, NOFLAGS,
724 _SC_TRACE_EVENT_FILTER, "_POSIX_TRACE_EVENT_FILTER", SYSCONF, NOFLAGS,
725 _SC_TRACE_EVENT_NAME_MAX, "_POSIX_TRACE_EVENT_NAME_MAX", SYSCONF,
726 NOFLAGS,
727 _SC_TRACE_INHERIT, "_POSIX_TRACE_INHERIT", SYSCONF, NOFLAGS,
728 _SC_TRACE_LOG, "_POSIX_TRACE_LOG", SYSCONF, NOFLAGS,
729 _SC_TRACE_NAME_MAX, "_POSIX_TRACE_NAME_MAX", SYSCONF, NOFLAGS,
730 _SC_TRACE_SYS_MAX, "_POSIX_TRACE_SYS_MAX", SYSCONF, NOFLAGS,
731 _SC_TRACE_USER_EVENT_MAX, "_POSIX_TRACE_USER_EVENT_MAX", SYSCONF,
732 NOFLAGS,
733 _SC_TYPED_MEMORY_OBJECTS, "_POSIX_TYPED_MEMORY_OBJECTS", SYSCONF,
734 NOFLAGS,
735
736 /*
737 * Due to an ambiguity in the specification, we need to recognize both
738 * the underscored POSIX name and the non-underscored name. In addition,
739 * we need to permit the use of the _V6_* environment names specified
740 * in unistd.h.
741 */
742 _SC_V6_ILP32_OFF32, "_V6_ILP32_OFF32", SYSCONF, NOFLAGS,
743 _SC_V6_ILP32_OFF32, "_POSIX_V6_ILP32_OFF32", SYSCONF, NOFLAGS,
744 _SC_V6_ILP32_OFF32, "POSIX_V6_ILP32_OFF32", SYSCONF, NOFLAGS,
745
746 _SC_V6_ILP32_OFFBIG, "_V6_ILP32_OFFBIG", SYSCONF, NOFLAGS,
747 _SC_V6_ILP32_OFFBIG, "_POSIX_V6_ILP32_OFFBIG", SYSCONF, NOFLAGS,
748 _SC_V6_ILP32_OFFBIG, "POSIX_V6_ILP32_OFFBIG", SYSCONF, NOFLAGS,
749
750 _SC_V6_LP64_OFF64, "_V6_LP64_OFF64", SYSCONF, NOFLAGS,
751 _SC_V6_LP64_OFF64, "_POSIX_V6_LP64_OFF64", SYSCONF, NOFLAGS,
752 _SC_V6_LP64_OFF64, "POSIX_V6_LP64_OFF64", SYSCONF, NOFLAGS,
753
754 _SC_V6_LPBIG_OFFBIG, "_V6_LPBIG_OFFBIG", SYSCONF, NOFLAGS,
755 _SC_V6_LPBIG_OFFBIG, "_POSIX_V6_LPBIG_OFFBIG", SYSCONF, NOFLAGS,
756 _SC_V6_LPBIG_OFFBIG, "POSIX_V6_LPBIG_OFFBIG", SYSCONF, NOFLAGS,
757 /*
758 * System V Interface Definition
759 */
760 _SC_NPROCESSORS_CONF, "NPROCESSORS_CONF", SYSCONF, NOFLAGS,
761 _SC_NPROCESSORS_MAX, "NPROCESSORS_MAX", SYSCONF, NOFLAGS,
762 _SC_NPROCESSORS_ONLN, "NPROCESSORS_ONLN", SYSCONF, NOFLAGS,
763 0, NULL, 0, 0 /* end of table */
764 };
765
766
767 /*
768 * Print usage message.
769 */
770 static int
771 usage()
772 {
773
774 (void) fputs(gettext(
775 "usage:\tgetconf [-v specification] system_var\n"
776 "\tgetconf [-v specification] path_var pathname\n"
777 "\tgetconf -a\n"), stderr);
778 return (2);
779 }
780
781
782 static int
783 namecmp(const void *a, const void *b)
784 {
785 return (strcoll(((const struct sctab *)a)->name,
786 ((const struct sctab *)b)->name));
787 }
788
789
790 static int
791 getconf(struct sctab *scp, int argc, char *name, char *file)
792 {
793 register size_t len;
794 register char *buffer;
795 long value;
796
797 switch (scp->type) {
798 case SELFCONF:
799 if (argc > 2)
800 return (usage());
801 if (scp->flag & UNDEFINED ||
802 (!(scp->flag&UNSIGNED_VALUE) && scp->value == -1)) {
803 /* DO NOT TRANSLATE */
804 (void) printf("undefined\n");
805 } else
806 if (scp->flag & UNSIGNED_VALUE)
807 (void) printf("%lu\n", scp->value);
808 else
809 (void) printf("%ld\n", scp->value);
810 break;
811
812 case SYSCONF:
813 if (argc > 2)
814 return (usage());
815 errno = 0;
816 if (scp->flag & UNDEFINED ||
817 (value = sysconf((int)scp->value)) == -1) {
818 if (errno == EINVAL) {
819 (void) fprintf(stderr,
820 gettext(INVAL_ARG), name);
821 return (1);
822 } else {
823 /* DO NOT TRANSLATE */
824 (void) printf("undefined\n");
825 return (0);
826 }
827 } else
828 (void) printf("%ld\n", value);
829 break;
830
831 case CONFSTR:
832 if (argc > 2)
833 return (usage());
834 errno = 0;
835 len = confstr((int)scp->value, NULL, (size_t)0);
836 if (len == 0) {
837 if (errno == EINVAL) {
838 (void) fprintf(stderr, gettext(INVAL_ARG),
839 name);
840 return (1);
841 } else {
842 /* DO NOT TRANSLATE */
843 (void) printf("undefined\n");
844 return (0);
845 }
846 }
847 /*
848 * allocate space to store result of constr() into
849 */
850 if ((buffer = malloc(len)) == NULL) {
851 (void) fprintf(stderr,
852 gettext("insufficient memory available"));
853 return (1);
854 }
855
856 assert(confstr((int)scp->value, buffer, len) != 0);
857
858 (void) printf("%s\n", buffer);
859 free(buffer);
860 break;
861
862 case PATHCONF:
863 if (argc != 3)
864 return (usage());
865 errno = 0;
866 if ((value = pathconf(file, (int)scp->value)) == -1) {
867 if (errno == EINVAL || errno == 0) {
868 /* Does not support the association */
869 /* DO NOT TRANSLATE */
870 (void) printf("undefined\n");
871 return (0);
872 } else {
873 /* Probably problems with the pathname itself */
874 if (aflag) {
875 (void) printf("%s\n", file);
876 } else {
877 (void) printf("%s", file);
878 }
879 return (1);
880 }
881 }
882 (void) printf("%ld\n", value);
883 break;
884 }
885 return (0);
886 }
887
888 int
889 main(int argc, char **argv)
890 {
891 register struct sctab *scp;
892 int c;
893 int exstat = 0;
894
895 (void) setlocale(LC_ALL, "");
896 #if !defined(TEXT_DOMAIN) /* Should be defined by cc -D */
897 #define TEXT_DOMAIN "SYS_TEST"
898 #endif
899 (void) textdomain(TEXT_DOMAIN);
900
901 while ((c = getopt(argc, argv, "av:")) != -1)
902 switch (c) {
903 case 'a':
904 aflag = 1;
905 break;
906 case 'v':
907 /*
908 * Unix98 adds the -v option to allow
909 * programming 'specifications' to be
910 * indicated, for present purposes
911 * the specification isn't really
912 * doing anything of value, so for
913 * the moment getopt just processes the
914 * option value and argv[1] is adjusted.
915 *
916 * At some later date we might want to
917 * do specification processing at this
918 * point.
919 */
920 break;
921 case '?':
922 return (usage());
923 }
924 argc -= optind-1;
925 argv += optind-1;
926
927 if ((aflag && argc >= 2) || (!aflag && argc < 2))
928 return (usage());
929 if (aflag) {
930
931 #define TabStop 8
932 #define RightColumn 32
933 #define DefPathName "."
934
935 /*
936 * sort the table by the "name" field
937 * so we print it in sorted order
938 */
939 qsort(&sctab[0], (sizeof (sctab)/sizeof (struct sctab))-1,
940 sizeof (struct sctab), namecmp);
941
942 /*
943 * print all the known symbols and their values
944 */
945 for (scp = &sctab[0]; scp->name != NULL; ++scp) {
946 int stat;
947
948 /*
949 * create 2 columns:
950 * variable name in the left column,
951 * value in the right column.
952 * The right column starts at a tab stop.
953 */
954 (void) printf("%s:\t", scp->name);
955
956 c = strlen(scp->name) + 1;
957 c = (c+TabStop) / TabStop, c *= TabStop;
958 for (; c < RightColumn; c += TabStop)
959 (void) putchar('\t');
960
961 /*
962 * for pathconf() related variables that require
963 * a pathname, use "."
964 */
965 stat = getconf(scp, scp->type == PATHCONF ? 3 : 2,
966 scp->name, DefPathName);
967
968 exstat |= stat;
969
970 /*
971 * if stat != 0, then an error message was already
972 * printed in getconf(),
973 * so don't need to print one here
974 */
975 }
976 } else {
977
978 /*
979 * find the name of the specified variable (argv[1])
980 * and print its value.
981 */
982 for (scp = &sctab[0]; scp->name != NULL; ++scp)
983 if (strcmp(argv[1], scp->name) == 0) {
984 exstat = getconf(scp, argc, argv[1], argv[2]);
985 break;
986 }
987
988 /*
989 * if at last entry in table, then the user specified
990 * variable is invalid
991 */
992 if (scp->name == NULL) {
993 errno = EINVAL;
994 (void) fprintf(stderr, gettext(INVAL_ARG), argv[1]);
995 return (1);
996 }
997 }
998 return (exstat);
999 }