| File: | src/lib/libc/gen/getgrent.c |
| Warning: | line 201, column 6 Value stored to 'saved_errno' during its initialization is never read |
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| 1 | /* $OpenBSD: getgrent.c,v 1.48 2019/07/02 15:54:05 deraadt Exp $ */ |
| 2 | /* |
| 3 | * Copyright (c) 1989, 1993 |
| 4 | * The Regents of the University of California. All rights reserved. |
| 5 | * Portions Copyright (c) 1994, Jason Downs. All Rights Reserved. |
| 6 | * |
| 7 | * Redistribution and use in source and binary forms, with or without |
| 8 | * modification, are permitted provided that the following conditions |
| 9 | * are met: |
| 10 | * 1. Redistributions of source code must retain the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer. |
| 12 | * 2. Redistributions in binary form must reproduce the above copyright |
| 13 | * notice, this list of conditions and the following disclaimer in the |
| 14 | * documentation and/or other materials provided with the distribution. |
| 15 | * 3. Neither the name of the University nor the names of its contributors |
| 16 | * may be used to endorse or promote products derived from this software |
| 17 | * without specific prior written permission. |
| 18 | * |
| 19 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 20 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 21 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 22 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 23 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 24 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 25 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 26 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 27 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 28 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 29 | * SUCH DAMAGE. |
| 30 | */ |
| 31 | |
| 32 | #include <sys/types.h> |
| 33 | #include <stdio.h> |
| 34 | #include <stdlib.h> |
| 35 | #include <string.h> |
| 36 | #include <limits.h> |
| 37 | #include <unistd.h> |
| 38 | #include <grp.h> |
| 39 | #include <errno(*__errno()).h> |
| 40 | #ifdef YP1 |
| 41 | #include <rpc/rpc.h> |
| 42 | #include <rpcsvc/yp.h> |
| 43 | #include <rpcsvc/ypclnt.h> |
| 44 | #include "ypinternal.h" |
| 45 | #include "ypexclude.h" |
| 46 | #endif |
| 47 | #include "thread_private.h" |
| 48 | |
| 49 | /* This global storage is locked for the non-rentrant functions */ |
| 50 | _THREAD_PRIVATE_KEY(gr_storage)static void *_thread_tagname_gr_storage; |
| 51 | static struct group_storage { |
| 52 | #define MAXGRP200 200 |
| 53 | char *members[MAXGRP200]; |
| 54 | #define MAXLINELENGTH1024 1024 |
| 55 | char line[MAXLINELENGTH1024]; |
| 56 | } gr_storage; |
| 57 | #define GETGR_R_SIZE_MAX(1024+200*sizeof(char*)) _GR_BUF_LEN(1024+200*sizeof(char*)) |
| 58 | |
| 59 | /* File pointers are locked with the 'gr' mutex */ |
| 60 | _THREAD_PRIVATE_KEY(gr)static void *_thread_tagname_gr; |
| 61 | static FILE *_gr_fp; |
| 62 | static struct group _gr_group; |
| 63 | static int _gr_stayopen; |
| 64 | static int grscan(int, gid_t, const char *, struct group *, struct group_storage *, |
| 65 | int *); |
| 66 | static int start_gr(void); |
| 67 | static void endgrent_basic(void); |
| 68 | |
| 69 | static struct group *getgrnam_gs(const char *, struct group *, |
| 70 | struct group_storage *); |
| 71 | static struct group *getgrgid_gs(gid_t, struct group *, |
| 72 | struct group_storage *); |
| 73 | |
| 74 | #ifdef YP1 |
| 75 | static struct _ypexclude *__ypexhead = NULL((void *)0); |
| 76 | static int __ypmode = 0; |
| 77 | static char *__ypcurrent, *__ypdomain; |
| 78 | static int __ypcurrentlen; |
| 79 | #endif |
| 80 | |
| 81 | struct group * |
| 82 | _getgrent_yp(int *foundyp) |
| 83 | { |
| 84 | struct group *p_gr = (struct group*)_THREAD_PRIVATE(gr, _gr_group, NULL)(_thread_cb.tc_tag_storage == ((void *)0) ? &(_gr_group) : _thread_cb.tc_tag_storage(&(_thread_tagname_gr), &(_gr_group ), sizeof(_gr_group), ((void *)0), (((void *)0)))); |
| 85 | struct group_storage *gs = (struct group_storage *)_THREAD_PRIVATE(gr_storage,(_thread_cb.tc_tag_storage == ((void *)0) ? &(gr_storage) : _thread_cb.tc_tag_storage(&(_thread_tagname_gr_storage ), &(gr_storage), sizeof(gr_storage), ((void *)0), (((void *)0)))) |
| 86 | gr_storage, NULL)(_thread_cb.tc_tag_storage == ((void *)0) ? &(gr_storage) : _thread_cb.tc_tag_storage(&(_thread_tagname_gr_storage ), &(gr_storage), sizeof(gr_storage), ((void *)0), (((void *)0)))); |
| 87 | |
| 88 | _THREAD_PRIVATE_MUTEX_LOCK(gr)do { if (_thread_cb.tc_tag_lock != ((void *)0)) _thread_cb.tc_tag_lock (&(_thread_tagname_gr)); } while (0); |
| 89 | if ((!_gr_fp && !start_gr()) || !grscan(0, 0, NULL((void *)0), p_gr, gs, foundyp)) |
| 90 | p_gr = NULL((void *)0); |
| 91 | _THREAD_PRIVATE_MUTEX_UNLOCK(gr)do { if (_thread_cb.tc_tag_unlock != ((void *)0)) _thread_cb. tc_tag_unlock(&(_thread_tagname_gr)); } while (0); |
| 92 | return (p_gr); |
| 93 | } |
| 94 | |
| 95 | struct group * |
| 96 | getgrent(void) |
| 97 | { |
| 98 | return (_getgrent_yp(NULL((void *)0))); |
| 99 | } |
| 100 | |
| 101 | static struct group * |
| 102 | getgrnam_gs(const char *name, struct group *p_gr, struct group_storage *gs) |
| 103 | { |
| 104 | int rval; |
| 105 | |
| 106 | _THREAD_PRIVATE_MUTEX_LOCK(gr)do { if (_thread_cb.tc_tag_lock != ((void *)0)) _thread_cb.tc_tag_lock (&(_thread_tagname_gr)); } while (0); |
| 107 | if (!start_gr()) |
| 108 | rval = 0; |
| 109 | else { |
| 110 | rval = grscan(1, 0, name, p_gr, gs, NULL((void *)0)); |
| 111 | if (!_gr_stayopen) |
| 112 | endgrent_basic(); |
| 113 | } |
| 114 | _THREAD_PRIVATE_MUTEX_UNLOCK(gr)do { if (_thread_cb.tc_tag_unlock != ((void *)0)) _thread_cb. tc_tag_unlock(&(_thread_tagname_gr)); } while (0); |
| 115 | return(rval ? p_gr : NULL((void *)0)); |
| 116 | } |
| 117 | |
| 118 | struct group * |
| 119 | getgrnam(const char *name) |
| 120 | { |
| 121 | struct group *p_gr = (struct group*)_THREAD_PRIVATE(gr,_gr_group,NULL)(_thread_cb.tc_tag_storage == ((void *)0) ? &(_gr_group) : _thread_cb.tc_tag_storage(&(_thread_tagname_gr), &(_gr_group ), sizeof(_gr_group), ((void *)0), (((void *)0)))); |
| 122 | struct group_storage *gs = (struct group_storage *)_THREAD_PRIVATE(gr_storage,(_thread_cb.tc_tag_storage == ((void *)0) ? &(gr_storage) : _thread_cb.tc_tag_storage(&(_thread_tagname_gr_storage ), &(gr_storage), sizeof(gr_storage), ((void *)0), (((void *)0)))) |
| 123 | gr_storage, NULL)(_thread_cb.tc_tag_storage == ((void *)0) ? &(gr_storage) : _thread_cb.tc_tag_storage(&(_thread_tagname_gr_storage ), &(gr_storage), sizeof(gr_storage), ((void *)0), (((void *)0)))); |
| 124 | |
| 125 | return getgrnam_gs(name, p_gr, gs); |
| 126 | } |
| 127 | |
| 128 | int |
| 129 | getgrnam_r(const char *name, struct group *grp, char *buffer, |
| 130 | size_t bufsize, struct group **result) |
| 131 | { |
| 132 | int errnosave; |
| 133 | int ret; |
| 134 | |
| 135 | if (bufsize < GETGR_R_SIZE_MAX(1024+200*sizeof(char*))) |
| 136 | return ERANGE34; |
| 137 | errnosave = errno(*__errno()); |
| 138 | errno(*__errno()) = 0; |
| 139 | *result = getgrnam_gs(name, grp, (struct group_storage *)buffer); |
| 140 | if (*result == NULL((void *)0)) |
| 141 | ret = errno(*__errno()); |
| 142 | else |
| 143 | ret = 0; |
| 144 | errno(*__errno()) = errnosave; |
| 145 | return ret; |
| 146 | } |
| 147 | DEF_WEAK(getgrnam_r)__asm__(".weak " "getgrnam_r" " ; " "getgrnam_r" " = " "_libc_getgrnam_r" ); |
| 148 | |
| 149 | static struct group * |
| 150 | getgrgid_gs(gid_t gid, struct group *p_gr, struct group_storage *gs) |
| 151 | { |
| 152 | int rval; |
| 153 | |
| 154 | _THREAD_PRIVATE_MUTEX_LOCK(gr)do { if (_thread_cb.tc_tag_lock != ((void *)0)) _thread_cb.tc_tag_lock (&(_thread_tagname_gr)); } while (0); |
| 155 | if (!start_gr()) |
| 156 | rval = 0; |
| 157 | else { |
| 158 | rval = grscan(1, gid, NULL((void *)0), p_gr, gs, NULL((void *)0)); |
| 159 | if (!_gr_stayopen) |
| 160 | endgrent_basic(); |
| 161 | } |
| 162 | _THREAD_PRIVATE_MUTEX_UNLOCK(gr)do { if (_thread_cb.tc_tag_unlock != ((void *)0)) _thread_cb. tc_tag_unlock(&(_thread_tagname_gr)); } while (0); |
| 163 | return(rval ? p_gr : NULL((void *)0)); |
| 164 | } |
| 165 | |
| 166 | struct group * |
| 167 | getgrgid(gid_t gid) |
| 168 | { |
| 169 | struct group *p_gr = (struct group*)_THREAD_PRIVATE(gr, _gr_group, NULL)(_thread_cb.tc_tag_storage == ((void *)0) ? &(_gr_group) : _thread_cb.tc_tag_storage(&(_thread_tagname_gr), &(_gr_group ), sizeof(_gr_group), ((void *)0), (((void *)0)))); |
| 170 | struct group_storage *gs = (struct group_storage *)_THREAD_PRIVATE(gr_storage,(_thread_cb.tc_tag_storage == ((void *)0) ? &(gr_storage) : _thread_cb.tc_tag_storage(&(_thread_tagname_gr_storage ), &(gr_storage), sizeof(gr_storage), ((void *)0), (((void *)0)))) |
| 171 | gr_storage, NULL)(_thread_cb.tc_tag_storage == ((void *)0) ? &(gr_storage) : _thread_cb.tc_tag_storage(&(_thread_tagname_gr_storage ), &(gr_storage), sizeof(gr_storage), ((void *)0), (((void *)0)))); |
| 172 | |
| 173 | return getgrgid_gs(gid, p_gr, gs); |
| 174 | } |
| 175 | |
| 176 | int |
| 177 | getgrgid_r(gid_t gid, struct group *grp, char *buffer, size_t bufsize, |
| 178 | struct group **result) |
| 179 | { |
| 180 | int errnosave; |
| 181 | int ret; |
| 182 | |
| 183 | if (bufsize < GETGR_R_SIZE_MAX(1024+200*sizeof(char*))) |
| 184 | return ERANGE34; |
| 185 | errnosave = errno(*__errno()); |
| 186 | errno(*__errno()) = 0; |
| 187 | *result = getgrgid_gs(gid, grp, (struct group_storage *)buffer); |
| 188 | if (*result == NULL((void *)0)) |
| 189 | ret = errno(*__errno()); |
| 190 | else |
| 191 | ret = 0; |
| 192 | errno(*__errno()) = errnosave; |
| 193 | return ret; |
| 194 | } |
| 195 | DEF_WEAK(getgrgid_r)__asm__(".weak " "getgrgid_r" " ; " "getgrgid_r" " = " "_libc_getgrgid_r" ); |
| 196 | |
| 197 | static int |
| 198 | start_gr(void) |
| 199 | { |
| 200 | #ifdef YP1 |
| 201 | int saved_errno = errno(*__errno()); |
Value stored to 'saved_errno' during its initialization is never read | |
| 202 | #endif |
| 203 | |
| 204 | if (_gr_fp) { |
| 205 | rewind(_gr_fp); |
| 206 | #ifdef YP1 |
| 207 | __ypmode = 0; |
| 208 | free(__ypcurrent); |
| 209 | __ypcurrent = NULL((void *)0); |
| 210 | if (__ypexhead) |
| 211 | __ypexclude_free(&__ypexhead); |
| 212 | __ypexhead = NULL((void *)0); |
| 213 | #endif |
| 214 | return(1); |
| 215 | } |
| 216 | |
| 217 | #ifdef YP1 |
| 218 | /* |
| 219 | * Hint to the kernel that a passwd database operation is happening. |
| 220 | */ |
| 221 | saved_errno = errno(*__errno()); |
| 222 | (void)access("/var/run/ypbind.lock", R_OK0x04); |
| 223 | errno(*__errno()) = saved_errno; |
| 224 | #endif |
| 225 | |
| 226 | return((_gr_fp = fopen(_PATH_GROUP"/etc/group", "re")) ? 1 : 0); |
| 227 | } |
| 228 | |
| 229 | void |
| 230 | setgrent(void) |
| 231 | { |
| 232 | int saved_errno; |
| 233 | |
| 234 | saved_errno = errno(*__errno()); |
| 235 | setgroupent(0); |
| 236 | errno(*__errno()) = saved_errno; |
| 237 | } |
| 238 | DEF_WEAK(setgrent)__asm__(".weak " "setgrent" " ; " "setgrent" " = " "_libc_setgrent" ); |
| 239 | |
| 240 | int |
| 241 | setgroupent(int stayopen) |
| 242 | { |
| 243 | int retval; |
| 244 | |
| 245 | _THREAD_PRIVATE_MUTEX_LOCK(gr)do { if (_thread_cb.tc_tag_lock != ((void *)0)) _thread_cb.tc_tag_lock (&(_thread_tagname_gr)); } while (0); |
| 246 | if (!start_gr()) |
| 247 | retval = 0; |
| 248 | else { |
| 249 | _gr_stayopen = stayopen; |
| 250 | retval = 1; |
| 251 | } |
| 252 | _THREAD_PRIVATE_MUTEX_UNLOCK(gr)do { if (_thread_cb.tc_tag_unlock != ((void *)0)) _thread_cb. tc_tag_unlock(&(_thread_tagname_gr)); } while (0); |
| 253 | return (retval); |
| 254 | } |
| 255 | DEF_WEAK(setgroupent)__asm__(".weak " "setgroupent" " ; " "setgroupent" " = " "_libc_setgroupent" ); |
| 256 | |
| 257 | static |
| 258 | void |
| 259 | endgrent_basic(void) |
| 260 | { |
| 261 | int saved_errno; |
| 262 | |
| 263 | if (_gr_fp) { |
| 264 | saved_errno = errno(*__errno()); |
| 265 | fclose(_gr_fp); |
| 266 | _gr_fp = NULL((void *)0); |
| 267 | #ifdef YP1 |
| 268 | __ypmode = 0; |
| 269 | free(__ypcurrent); |
| 270 | __ypcurrent = NULL((void *)0); |
| 271 | if (__ypexhead) |
| 272 | __ypexclude_free(&__ypexhead); |
| 273 | __ypexhead = NULL((void *)0); |
| 274 | #endif |
| 275 | errno(*__errno()) = saved_errno; |
| 276 | } |
| 277 | } |
| 278 | |
| 279 | void |
| 280 | endgrent(void) |
| 281 | { |
| 282 | _THREAD_PRIVATE_MUTEX_LOCK(gr)do { if (_thread_cb.tc_tag_lock != ((void *)0)) _thread_cb.tc_tag_lock (&(_thread_tagname_gr)); } while (0); |
| 283 | endgrent_basic(); |
| 284 | _THREAD_PRIVATE_MUTEX_UNLOCK(gr)do { if (_thread_cb.tc_tag_unlock != ((void *)0)) _thread_cb. tc_tag_unlock(&(_thread_tagname_gr)); } while (0); |
| 285 | } |
| 286 | DEF_WEAK(endgrent)__asm__(".weak " "endgrent" " ; " "endgrent" " = " "_libc_endgrent" ); |
| 287 | |
| 288 | static int |
| 289 | grscan(int search, gid_t gid, const char *name, struct group *p_gr, |
| 290 | struct group_storage *gs, int *foundyp) |
| 291 | { |
| 292 | char *cp, **m; |
| 293 | char *bp, *endp; |
| 294 | u_long ul; |
| 295 | #ifdef YP1 |
| 296 | char *key, *data; |
| 297 | int keylen, datalen; |
| 298 | int r; |
| 299 | #endif |
| 300 | char **members; |
| 301 | char *line; |
| 302 | int saved_errno; |
| 303 | |
| 304 | if (gs == NULL((void *)0)) |
| 305 | return 0; |
| 306 | members = gs->members; |
| 307 | line = gs->line; |
| 308 | saved_errno = errno(*__errno()); |
| 309 | |
| 310 | for (;;) { |
| 311 | #ifdef YP1 |
| 312 | if (__ypmode) { |
| 313 | if (__ypcurrent) { |
| 314 | r = yp_next(__ypdomain, "group.byname", |
| 315 | __ypcurrent, __ypcurrentlen, |
| 316 | &key, &keylen, &data, &datalen); |
| 317 | free(__ypcurrent); |
| 318 | __ypcurrent = key; |
| 319 | __ypcurrentlen = keylen; |
| 320 | } else { |
| 321 | r = yp_first(__ypdomain, "group.byname", |
| 322 | &__ypcurrent, &__ypcurrentlen, |
| 323 | &data, &datalen); |
| 324 | } |
| 325 | if (r) { |
| 326 | __ypmode = 0; |
| 327 | __ypcurrent = NULL((void *)0); |
| 328 | if (r == YPERR_NOMORE8) |
| 329 | continue; |
| 330 | else |
| 331 | return 0; |
| 332 | } |
| 333 | bcopy(data, line, datalen); |
| 334 | free(data); |
| 335 | line[datalen] = '\0'; |
| 336 | bp = line; |
| 337 | goto parse; |
| 338 | } |
| 339 | #endif |
| 340 | if (!fgets(line, sizeof(gs->line), _gr_fp)) { |
| 341 | if (feof(_gr_fp)(!__isthreaded ? (((_gr_fp)->_flags & 0x0020) != 0) : ( feof)(_gr_fp)) && !ferror(_gr_fp)(!__isthreaded ? (((_gr_fp)->_flags & 0x0040) != 0) : ( ferror)(_gr_fp))) |
| 342 | errno(*__errno()) = saved_errno; |
| 343 | return 0; |
| 344 | } |
| 345 | bp = line; |
| 346 | /* skip lines that are too big */ |
| 347 | if (!strchr(line, '\n')) { |
| 348 | int ch; |
| 349 | |
| 350 | while ((ch = getc_unlocked(_gr_fp)(--(_gr_fp)->_r < 0 ? __srget(_gr_fp) : (int)(*(_gr_fp) ->_p++))) != '\n' && |
| 351 | ch != EOF(-1)) |
| 352 | ; |
| 353 | continue; |
| 354 | } |
| 355 | #ifdef YP1 |
| 356 | if (line[0] == '+' || line[0] == '-') { |
| 357 | if (__ypdomain == NULL((void *)0) && |
| 358 | yp_get_default_domain(&__ypdomain)) |
| 359 | goto parse; |
| 360 | switch (yp_bind(__ypdomain)) { |
| 361 | case 0: |
| 362 | break; |
| 363 | case YPERR_BADARGS1: |
| 364 | case YPERR_YPBIND10: |
| 365 | goto parse; |
| 366 | default: |
| 367 | return 0; |
| 368 | } |
| 369 | } |
| 370 | if (line[0] == '+') { |
| 371 | switch (line[1]) { |
| 372 | case ':': |
| 373 | case '\0': |
| 374 | case '\n': |
| 375 | if (foundyp) { |
| 376 | *foundyp = 1; |
| 377 | errno(*__errno()) = saved_errno; |
| 378 | return 0; |
| 379 | } |
| 380 | if (!search) { |
| 381 | __ypmode = 1; |
| 382 | continue; |
| 383 | } |
| 384 | if (name) { |
| 385 | r = yp_match(__ypdomain, |
| 386 | "group.byname", name, strlen(name), |
| 387 | &data, &datalen); |
| 388 | } else { |
| 389 | char buf[20]; |
| 390 | snprintf(buf, sizeof buf, "%u", gid); |
| 391 | r = yp_match(__ypdomain, "group.bygid", |
| 392 | buf, strlen(buf), &data, &datalen); |
| 393 | } |
| 394 | switch (r) { |
| 395 | case 0: |
| 396 | break; |
| 397 | case YPERR_KEY5: |
| 398 | continue; |
| 399 | default: |
| 400 | return 0; |
| 401 | } |
| 402 | bcopy(data, line, datalen); |
| 403 | free(data); |
| 404 | line[datalen] = '\0'; |
| 405 | bp = line; |
| 406 | p_gr->gr_name = strsep(&bp, ":\n"); |
| 407 | if (__ypexclude_is(&__ypexhead, p_gr->gr_name)) |
| 408 | continue; |
| 409 | p_gr->gr_passwd = strsep(&bp, ":\n"); |
| 410 | if (!(cp = strsep(&bp, ":\n"))) |
| 411 | continue; |
| 412 | if (name) { |
| 413 | ul = strtoul(cp, &endp, 10); |
| 414 | if (*endp != '\0' || endp == cp || |
| 415 | ul >= GID_MAX(2147483647 *2U +1U)) |
| 416 | continue; |
| 417 | p_gr->gr_gid = ul; |
| 418 | } else |
| 419 | p_gr->gr_gid = gid; |
| 420 | goto found_it; |
| 421 | default: |
| 422 | bp = strsep(&bp, ":\n") + 1; |
| 423 | if ((search && name && strcmp(bp, name)) || |
| 424 | __ypexclude_is(&__ypexhead, bp)) |
| 425 | continue; |
| 426 | r = yp_match(__ypdomain, "group.byname", |
| 427 | bp, strlen(bp), &data, &datalen); |
| 428 | switch (r) { |
| 429 | case 0: |
| 430 | break; |
| 431 | case YPERR_KEY5: |
| 432 | continue; |
| 433 | default: |
| 434 | return 0; |
| 435 | } |
| 436 | bcopy(data, line, datalen); |
| 437 | free(data); |
| 438 | line[datalen] = '\0'; |
| 439 | bp = line; |
| 440 | } |
| 441 | } else if (line[0] == '-') { |
| 442 | if (__ypexclude_add(&__ypexhead, |
| 443 | strsep(&line, ":\n") + 1)) |
| 444 | return 0; |
| 445 | if (foundyp) { |
| 446 | *foundyp = -1; |
| 447 | errno(*__errno()) = saved_errno; |
| 448 | return 0; |
| 449 | } |
| 450 | continue; |
| 451 | } |
| 452 | parse: |
| 453 | #endif |
| 454 | p_gr->gr_name = strsep(&bp, ":\n"); |
| 455 | if (search && name && strcmp(p_gr->gr_name, name)) |
| 456 | continue; |
| 457 | #ifdef YP1 |
| 458 | if (__ypmode && __ypexclude_is(&__ypexhead, p_gr->gr_name)) |
| 459 | continue; |
| 460 | #endif |
| 461 | p_gr->gr_passwd = strsep(&bp, ":\n"); |
| 462 | if (!(cp = strsep(&bp, ":\n"))) |
| 463 | continue; |
| 464 | ul = strtoul(cp, &endp, 10); |
| 465 | if (endp == cp || *endp != '\0' || ul >= GID_MAX(2147483647 *2U +1U)) |
| 466 | continue; |
| 467 | p_gr->gr_gid = ul; |
| 468 | if (search && name == NULL((void *)0) && p_gr->gr_gid != gid) |
| 469 | continue; |
| 470 | #ifdef YP1 |
| 471 | found_it: |
| 472 | #endif |
| 473 | cp = NULL((void *)0); |
| 474 | if (bp == NULL((void *)0)) |
| 475 | continue; |
| 476 | for (m = p_gr->gr_mem = members;; bp++) { |
| 477 | if (m == &members[MAXGRP200 - 1]) |
| 478 | break; |
| 479 | if (*bp == ',') { |
| 480 | if (cp) { |
| 481 | *bp = '\0'; |
| 482 | *m++ = cp; |
| 483 | cp = NULL((void *)0); |
| 484 | } |
| 485 | } else if (*bp == '\0' || *bp == '\n' || *bp == ' ') { |
| 486 | if (cp) { |
| 487 | *bp = '\0'; |
| 488 | *m++ = cp; |
| 489 | } |
| 490 | break; |
| 491 | } else if (cp == NULL((void *)0)) |
| 492 | cp = bp; |
| 493 | } |
| 494 | *m = NULL((void *)0); |
| 495 | errno(*__errno()) = saved_errno; |
| 496 | return 1; |
| 497 | } |
| 498 | /* NOTREACHED */ |
| 499 | } |