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Commit | Line | Data |
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f6903667 AK |
1 | /* |
2 | * nonlocal-group.c | |
3 | * group database for nss_nonlocal proxy | |
4 | * | |
48479fc7 TA |
5 | * Copyright © 2007 Anders Kaseorg <andersk@mit.edu> and Tim Abbott |
6 | * <tabbott@mit.edu> | |
f6903667 AK |
7 | * |
8 | * Permission is hereby granted, free of charge, to any person | |
9 | * obtaining a copy of this software and associated documentation | |
10 | * files (the "Software"), to deal in the Software without | |
11 | * restriction, including without limitation the rights to use, copy, | |
12 | * modify, merge, publish, distribute, sublicense, and/or sell copies | |
13 | * of the Software, and to permit persons to whom the Software is | |
14 | * furnished to do so, subject to the following conditions: | |
15 | * | |
16 | * The above copyright notice and this permission notice shall be | |
17 | * included in all copies or substantial portions of the Software. | |
18 | * | |
19 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
20 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
21 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
22 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
23 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
24 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
25 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
26 | * SOFTWARE. | |
27 | */ | |
28 | ||
29 | #define _GNU_SOURCE | |
30 | #include <sys/types.h> | |
31 | #include <unistd.h> | |
32 | #include <stdlib.h> | |
33 | #include <stdint.h> | |
34 | #include <string.h> | |
35 | #include <dlfcn.h> | |
36 | #include <stdio.h> | |
37 | #include <syslog.h> | |
38 | #include <errno.h> | |
39 | #include <grp.h> | |
40 | #include <nss.h> | |
41 | #include "nsswitch-internal.h" | |
42 | #include "nonlocal.h" | |
43 | ||
48479fc7 TA |
44 | #define MAGIC_NONLOCAL_GROUPNAME "nss-nonlocal-users" |
45 | #define MAGIC_LOCAL_GROUPNAME "nss-local-users" | |
f7293a54 | 46 | |
f6903667 | 47 | |
c1812233 AK |
48 | enum nss_status |
49 | _nss_nonlocal_getgrnam_r(const char *name, struct group *grp, | |
50 | char *buffer, size_t buflen, int *errnop); | |
51 | ||
52 | enum nss_status | |
53 | _nss_nonlocal_getgrgid_r(gid_t gid, struct group *grp, | |
54 | char *buffer, size_t buflen, int *errnop); | |
55 | ||
56 | ||
f6903667 AK |
57 | static service_user * |
58 | nss_group_nonlocal_database(void) | |
59 | { | |
60 | static service_user *nip = NULL; | |
61 | if (nip == NULL) | |
62 | __nss_database_lookup("group_nonlocal", NULL, "", &nip); | |
48479fc7 | 63 | |
f6903667 AK |
64 | return nip; |
65 | } | |
66 | ||
67 | ||
f6903667 AK |
68 | enum nss_status |
69 | check_nonlocal_gid(const char *user, gid_t gid, int *errnop) | |
70 | { | |
30fb3957 AK |
71 | static const char *fct_name = "getgrgid_r"; |
72 | static service_user *startp = NULL; | |
73 | static void *fct_start = NULL; | |
74 | enum nss_status status; | |
75 | service_user *nip; | |
76 | union { | |
77 | enum nss_status (*l)(gid_t gid, struct group *grp, | |
78 | char *buffer, size_t buflen, int *errnop); | |
79 | void *ptr; | |
80 | } fct; | |
f7293a54 | 81 | struct group gbuf; |
f7293a54 | 82 | int old_errno = errno; |
c1812233 | 83 | |
8870ee9c | 84 | size_t buflen = sysconf(_SC_GETGR_R_SIZE_MAX); |
f7293a54 AK |
85 | char *buf = malloc(buflen); |
86 | if (buf == NULL) { | |
f6903667 | 87 | *errnop = ENOMEM; |
f7293a54 | 88 | errno = old_errno; |
f6903667 AK |
89 | return NSS_STATUS_TRYAGAIN; |
90 | } | |
30fb3957 AK |
91 | |
92 | if (fct_start == NULL && | |
93 | __nss_group_lookup(&startp, fct_name, &fct_start) != 0) { | |
94 | free(buf); | |
95 | return NSS_STATUS_UNAVAIL; | |
96 | } | |
97 | nip = startp; | |
98 | fct.ptr = fct_start; | |
99 | do { | |
d905b369 | 100 | morebuf: |
c1812233 AK |
101 | if (fct.l == _nss_nonlocal_getgrgid_r) |
102 | status = NSS_STATUS_NOTFOUND; | |
103 | else | |
104 | status = DL_CALL_FCT(fct.l, (gid, &gbuf, buf, buflen, errnop)); | |
d905b369 AK |
105 | if (status == NSS_STATUS_TRYAGAIN && *errnop == ERANGE) { |
106 | free(buf); | |
107 | buflen *= 2; | |
108 | buf = malloc(buflen); | |
109 | if (buf == NULL) { | |
110 | *errnop = ENOMEM; | |
111 | errno = old_errno; | |
112 | return NSS_STATUS_TRYAGAIN; | |
113 | } | |
114 | goto morebuf; | |
115 | } | |
30fb3957 AK |
116 | } while (__nss_next(&nip, fct_name, &fct.ptr, status, 0) == 0); |
117 | ||
118 | if (status == NSS_STATUS_SUCCESS) { | |
f7293a54 | 119 | syslog(LOG_WARNING, "nss_nonlocal: removing local group %u (%s) from non-local user %s\n", gbuf.gr_gid, gbuf.gr_name, user); |
f6903667 | 120 | status = NSS_STATUS_NOTFOUND; |
30fb3957 AK |
121 | } else if (status != NSS_STATUS_TRYAGAIN) { |
122 | status = NSS_STATUS_SUCCESS; | |
f6903667 | 123 | } |
30fb3957 | 124 | |
f7293a54 | 125 | free(buf); |
f6903667 AK |
126 | return status; |
127 | } | |
128 | ||
cf338316 AK |
129 | enum nss_status |
130 | check_nonlocal_group(const char *user, struct group *grp, int *errnop) | |
131 | { | |
132 | return check_nonlocal_gid(user, grp->gr_gid, errnop); | |
133 | } | |
134 | ||
48479fc7 | 135 | enum nss_status |
8aa9014e | 136 | get_local_group(const char *name, struct group *grp, char **buffer, int *errnop) |
48479fc7 | 137 | { |
30fb3957 AK |
138 | static const char *fct_name = "getgrnam_r"; |
139 | static service_user *startp = NULL; | |
140 | static void *fct_start = NULL; | |
141 | enum nss_status status; | |
142 | service_user *nip; | |
143 | union { | |
144 | enum nss_status (*l)(const char *name, struct group *grp, | |
145 | char *buffer, size_t buflen, int *errnop); | |
146 | void *ptr; | |
147 | } fct; | |
8aa9014e | 148 | size_t buflen; |
48479fc7 | 149 | int old_errno = errno; |
c1812233 | 150 | |
8aa9014e AK |
151 | buflen = sysconf(_SC_GETGR_R_SIZE_MAX); |
152 | *buffer = malloc(buflen); | |
153 | if (*buffer == NULL) { | |
48479fc7 TA |
154 | *errnop = ENOMEM; |
155 | errno = old_errno; | |
156 | return NSS_STATUS_TRYAGAIN; | |
157 | } | |
1e78305d | 158 | |
30fb3957 AK |
159 | if (fct_start == NULL && |
160 | __nss_group_lookup(&startp, fct_name, &fct_start) != 0) { | |
8aa9014e AK |
161 | free(*buffer); |
162 | *buffer = NULL; | |
30fb3957 AK |
163 | return NSS_STATUS_UNAVAIL; |
164 | } | |
165 | nip = startp; | |
166 | fct.ptr = fct_start; | |
167 | do { | |
d905b369 | 168 | morebuf: |
c1812233 AK |
169 | if (fct.l == _nss_nonlocal_getgrnam_r) |
170 | status = NSS_STATUS_NOTFOUND; | |
171 | else | |
8aa9014e | 172 | status = DL_CALL_FCT(fct.l, (name, grp, *buffer, buflen, errnop)); |
d905b369 | 173 | if (status == NSS_STATUS_TRYAGAIN && *errnop == ERANGE) { |
8aa9014e AK |
174 | free(*buffer); |
175 | buflen *= 2; | |
176 | *buffer = malloc(buflen); | |
177 | if (*buffer == NULL) { | |
d905b369 AK |
178 | *errnop = ENOMEM; |
179 | errno = old_errno; | |
180 | return NSS_STATUS_TRYAGAIN; | |
181 | } | |
182 | goto morebuf; | |
183 | } | |
30fb3957 AK |
184 | } while (__nss_next(&nip, fct_name, &fct.ptr, status, 0) == 0); |
185 | ||
8aa9014e AK |
186 | if (status != NSS_STATUS_SUCCESS) { |
187 | free(*buffer); | |
188 | *buffer = NULL; | |
48479fc7 | 189 | } |
30fb3957 | 190 | |
48479fc7 TA |
191 | return status; |
192 | } | |
f6903667 AK |
193 | |
194 | static service_user *grent_nip = NULL; | |
195 | static void *grent_fct_start; | |
196 | static union { | |
197 | enum nss_status (*l)(struct group *grp, char *buffer, size_t buflen, | |
198 | int *errnop); | |
199 | void *ptr; | |
200 | } grent_fct; | |
201 | static const char *grent_fct_name = "getgrent_r"; | |
202 | ||
203 | enum nss_status | |
204 | _nss_nonlocal_setgrent(int stayopen) | |
205 | { | |
206 | static const char *fct_name = "setgrent"; | |
207 | static void *fct_start = NULL; | |
208 | enum nss_status status; | |
209 | service_user *nip; | |
210 | union { | |
211 | enum nss_status (*l)(int stayopen); | |
212 | void *ptr; | |
213 | } fct; | |
214 | ||
215 | nip = nss_group_nonlocal_database(); | |
216 | if (nip == NULL) | |
217 | return NSS_STATUS_UNAVAIL; | |
218 | if (fct_start == NULL) | |
219 | fct_start = __nss_lookup_function(nip, fct_name); | |
220 | fct.ptr = fct_start; | |
221 | do { | |
222 | if (fct.ptr == NULL) | |
223 | status = NSS_STATUS_UNAVAIL; | |
224 | else | |
225 | status = DL_CALL_FCT(fct.l, (stayopen)); | |
226 | } while (__nss_next(&nip, fct_name, &fct.ptr, status, 0) == 0); | |
227 | if (status != NSS_STATUS_SUCCESS) | |
228 | return status; | |
229 | ||
230 | grent_nip = nip; | |
231 | if (grent_fct_start == NULL) | |
232 | grent_fct_start = __nss_lookup_function(nip, grent_fct_name); | |
233 | grent_fct.ptr = grent_fct_start; | |
234 | return NSS_STATUS_SUCCESS; | |
235 | } | |
236 | ||
237 | enum nss_status | |
238 | _nss_nonlocal_endgrent(void) | |
239 | { | |
240 | static const char *fct_name = "endgrent"; | |
241 | static void *fct_start = NULL; | |
242 | enum nss_status status; | |
243 | service_user *nip; | |
244 | union { | |
245 | enum nss_status (*l)(void); | |
246 | void *ptr; | |
247 | } fct; | |
248 | ||
249 | grent_nip = NULL; | |
250 | ||
251 | nip = nss_group_nonlocal_database(); | |
252 | if (nip == NULL) | |
253 | return NSS_STATUS_UNAVAIL; | |
254 | if (fct_start == NULL) | |
255 | fct_start = __nss_lookup_function(nip, fct_name); | |
256 | fct.ptr = fct_start; | |
257 | do { | |
258 | if (fct.ptr == NULL) | |
259 | status = NSS_STATUS_UNAVAIL; | |
260 | else | |
261 | status = DL_CALL_FCT(fct.l, ()); | |
262 | } while (__nss_next(&nip, fct_name, &fct.ptr, status, 0) == 0); | |
263 | return status; | |
264 | } | |
265 | ||
266 | enum nss_status | |
267 | _nss_nonlocal_getgrent_r(struct group *grp, char *buffer, size_t buflen, | |
268 | int *errnop) | |
269 | { | |
270 | enum nss_status status; | |
a360549e TA |
271 | |
272 | char *nonlocal_ignore = getenv(NONLOCAL_IGNORE_ENV); | |
c1812233 | 273 | if (nonlocal_ignore != NULL && nonlocal_ignore[0] != '\0') |
a360549e TA |
274 | return NSS_STATUS_UNAVAIL; |
275 | ||
f6903667 AK |
276 | if (grent_nip == NULL) { |
277 | status = _nss_nonlocal_setgrent(0); | |
278 | if (status != NSS_STATUS_SUCCESS) | |
279 | return status; | |
280 | } | |
281 | do { | |
282 | if (grent_fct.ptr == NULL) | |
283 | status = NSS_STATUS_UNAVAIL; | |
284 | else { | |
285 | int nonlocal_errno; | |
286 | do | |
287 | status = DL_CALL_FCT(grent_fct.l, (grp, buffer, buflen, errnop)); | |
288 | while (status == NSS_STATUS_SUCCESS && | |
cf338316 | 289 | check_nonlocal_group("(unknown)", grp, &nonlocal_errno) != NSS_STATUS_SUCCESS); |
f6903667 AK |
290 | } |
291 | if (status == NSS_STATUS_TRYAGAIN && *errnop == ERANGE) | |
292 | return status; | |
293 | ||
294 | if (status == NSS_STATUS_SUCCESS) | |
295 | return NSS_STATUS_SUCCESS; | |
296 | } while (__nss_next(&grent_nip, grent_fct_name, &grent_fct.ptr, status, 0) == 0); | |
297 | ||
298 | grent_nip = NULL; | |
299 | return NSS_STATUS_NOTFOUND; | |
300 | } | |
301 | ||
302 | ||
303 | enum nss_status | |
304 | _nss_nonlocal_getgrnam_r(const char *name, struct group *grp, | |
305 | char *buffer, size_t buflen, int *errnop) | |
306 | { | |
307 | static const char *fct_name = "getgrnam_r"; | |
308 | static void *fct_start = NULL; | |
309 | enum nss_status status; | |
310 | service_user *nip; | |
311 | union { | |
312 | enum nss_status (*l)(const char *name, struct group *grp, | |
313 | char *buffer, size_t buflen, int *errnop); | |
314 | void *ptr; | |
315 | } fct; | |
316 | ||
a360549e | 317 | char *nonlocal_ignore = getenv(NONLOCAL_IGNORE_ENV); |
c1812233 | 318 | if (nonlocal_ignore != NULL && nonlocal_ignore[0] != '\0') |
48479fc7 TA |
319 | return NSS_STATUS_UNAVAIL; |
320 | ||
f6903667 AK |
321 | nip = nss_group_nonlocal_database(); |
322 | if (nip == NULL) | |
323 | return NSS_STATUS_UNAVAIL; | |
324 | if (fct_start == NULL) | |
325 | fct_start = __nss_lookup_function(nip, fct_name); | |
326 | fct.ptr = fct_start; | |
327 | do { | |
328 | if (fct.ptr == NULL) | |
329 | status = NSS_STATUS_UNAVAIL; | |
330 | else | |
331 | status = DL_CALL_FCT(fct.l, (name, grp, buffer, buflen, errnop)); | |
332 | if (status == NSS_STATUS_TRYAGAIN && *errnop == ERANGE) | |
333 | break; | |
334 | } while (__nss_next(&nip, fct_name, &fct.ptr, status, 0) == 0); | |
335 | if (status != NSS_STATUS_SUCCESS) | |
336 | return status; | |
337 | ||
22562df0 AK |
338 | if (strcmp(name, grp->gr_name) != 0) { |
339 | syslog(LOG_ERR, "nss_nonlocal: discarding group %s from lookup for group %s\n", grp->gr_name, name); | |
340 | return NSS_STATUS_NOTFOUND; | |
341 | } | |
342 | ||
cf338316 | 343 | return check_nonlocal_group(name, grp, errnop); |
f6903667 AK |
344 | } |
345 | ||
346 | enum nss_status | |
347 | _nss_nonlocal_getgrgid_r(gid_t gid, struct group *grp, | |
348 | char *buffer, size_t buflen, int *errnop) | |
349 | { | |
350 | static const char *fct_name = "getgrgid_r"; | |
351 | static void *fct_start = NULL; | |
352 | enum nss_status status; | |
353 | service_user *nip; | |
354 | union { | |
355 | enum nss_status (*l)(gid_t gid, struct group *grp, | |
356 | char *buffer, size_t buflen, int *errnop); | |
357 | void *ptr; | |
358 | } fct; | |
359 | ||
a360549e | 360 | char *nonlocal_ignore = getenv(NONLOCAL_IGNORE_ENV); |
c1812233 | 361 | if (nonlocal_ignore != NULL && nonlocal_ignore[0] != '\0') |
f6903667 AK |
362 | return NSS_STATUS_UNAVAIL; |
363 | ||
364 | nip = nss_group_nonlocal_database(); | |
365 | if (nip == NULL) | |
366 | return NSS_STATUS_UNAVAIL; | |
367 | if (fct_start == NULL) | |
368 | fct_start = __nss_lookup_function(nip, fct_name); | |
369 | fct.ptr = fct_start; | |
370 | do { | |
371 | if (fct.ptr == NULL) | |
372 | status = NSS_STATUS_UNAVAIL; | |
373 | else | |
374 | status = DL_CALL_FCT(fct.l, (gid, grp, buffer, buflen, errnop)); | |
375 | if (status == NSS_STATUS_TRYAGAIN && *errnop == ERANGE) | |
376 | break; | |
377 | } while (__nss_next(&nip, fct_name, &fct.ptr, status, 0) == 0); | |
378 | if (status != NSS_STATUS_SUCCESS) | |
379 | return status; | |
380 | ||
cf338316 | 381 | return check_nonlocal_group(grp->gr_name, grp, errnop); |
f6903667 AK |
382 | } |
383 | ||
384 | enum nss_status | |
385 | _nss_nonlocal_initgroups_dyn(const char *user, gid_t group, long int *start, | |
386 | long int *size, gid_t **groupsp, long int limit, | |
387 | int *errnop) | |
388 | { | |
389 | static const char *fct_name = "initgroups_dyn"; | |
390 | static void *fct_start = NULL; | |
391 | enum nss_status status; | |
392 | service_user *nip; | |
393 | union { | |
394 | enum nss_status (*l)(const char *user, gid_t group, long int *start, | |
395 | long int *size, gid_t **groupsp, long int limit, | |
396 | int *errnop); | |
397 | void *ptr; | |
398 | } fct; | |
1e78305d AK |
399 | |
400 | struct group local_users_group, nonlocal_users_group; | |
401 | gid_t local_users_gid, gid; | |
48479fc7 | 402 | int is_local = 0; |
1e78305d | 403 | char *buffer; |
d7bf1d11 AK |
404 | int old_errno; |
405 | int in, out, i; | |
48479fc7 | 406 | |
1e78305d | 407 | /* Check that the user is a nonlocal user before adding any groups. */ |
48479fc7 | 408 | status = check_nonlocal_user(user, errnop); |
5879a696 | 409 | if (status == NSS_STATUS_TRYAGAIN) |
48479fc7 | 410 | return status; |
5879a696 AK |
411 | else if (status != NSS_STATUS_SUCCESS) |
412 | is_local = 1; | |
48479fc7 | 413 | |
d7bf1d11 | 414 | old_errno = errno; |
1e78305d | 415 | |
48479fc7 | 416 | status = get_local_group(MAGIC_LOCAL_GROUPNAME, |
8aa9014e | 417 | &local_users_group, &buffer, errnop); |
5879a696 AK |
418 | if (status == NSS_STATUS_SUCCESS) { |
419 | local_users_gid = local_users_group.gr_gid; | |
dc94c928 | 420 | free(buffer); |
8aa9014e | 421 | } else if (status == NSS_STATUS_TRYAGAIN) { |
5879a696 AK |
422 | return status; |
423 | } else { | |
48479fc7 TA |
424 | syslog(LOG_WARNING, "nss_nonlocal: Group %s does not exist locally!", |
425 | MAGIC_LOCAL_GROUPNAME); | |
1e78305d | 426 | local_users_gid = -1; |
5879a696 | 427 | } |
1e78305d AK |
428 | |
429 | if (is_local) { | |
430 | gid = local_users_gid; | |
431 | } else { | |
1e78305d | 432 | status = get_local_group(MAGIC_NONLOCAL_GROUPNAME, |
8aa9014e | 433 | &nonlocal_users_group, &buffer, errnop); |
5879a696 AK |
434 | if (status == NSS_STATUS_SUCCESS) { |
435 | gid = nonlocal_users_group.gr_gid; | |
dc94c928 | 436 | free(buffer); |
8aa9014e | 437 | } else if (status == NSS_STATUS_TRYAGAIN) { |
5879a696 AK |
438 | return status; |
439 | } else { | |
1e78305d AK |
440 | syslog(LOG_WARNING, "nss_nonlocal: Group %s does not exist locally!", |
441 | MAGIC_NONLOCAL_GROUPNAME); | |
442 | gid = -1; | |
5879a696 | 443 | } |
48479fc7 | 444 | } |
1e78305d AK |
445 | |
446 | if (gid != -1) { | |
447 | int i; | |
448 | for (i = 0; i < *start; ++i) | |
449 | if ((*groupsp)[i] == gid) | |
450 | break; | |
451 | if (i >= *start) { | |
452 | if (*start + 1 > *size) { | |
453 | gid_t *newgroups; | |
454 | long int newsize = 2 * *size; | |
455 | if (limit > 0) { | |
456 | if (*size >= limit) | |
457 | return NSS_STATUS_SUCCESS; | |
458 | if (newsize > limit) | |
459 | newsize = limit; | |
460 | } | |
ad0399bd | 461 | newgroups = realloc(*groupsp, newsize * sizeof((*groupsp)[0])); |
1e78305d AK |
462 | if (newgroups == NULL) { |
463 | *errnop = ENOMEM; | |
464 | errno = old_errno; | |
465 | return NSS_STATUS_TRYAGAIN; | |
466 | } | |
467 | *groupsp = newgroups; | |
468 | *size = newsize; | |
469 | } | |
470 | (*groupsp)[(*start)++] = gid; | |
471 | } | |
48479fc7 | 472 | } |
f6903667 | 473 | |
1e78305d AK |
474 | if (is_local) |
475 | return NSS_STATUS_SUCCESS; | |
476 | ||
d7bf1d11 | 477 | in = out = *start; |
1e78305d | 478 | |
f6903667 AK |
479 | nip = nss_group_nonlocal_database(); |
480 | if (nip == NULL) | |
481 | return NSS_STATUS_UNAVAIL; | |
482 | if (fct_start == NULL) | |
483 | fct_start = __nss_lookup_function(nip, fct_name); | |
484 | fct.ptr = fct_start; | |
485 | ||
486 | do { | |
487 | if (fct.ptr == NULL) | |
488 | status = NSS_STATUS_UNAVAIL; | |
489 | else | |
490 | status = DL_CALL_FCT(fct.l, (user, group, start, size, groupsp, limit, errnop)); | |
491 | if (status == NSS_STATUS_TRYAGAIN && *errnop == ERANGE) | |
492 | break; | |
493 | } while (__nss_next(&nip, fct_name, &fct.ptr, status, 0) == 0); | |
494 | if (status != NSS_STATUS_SUCCESS) | |
495 | return status; | |
496 | ||
497 | for (; in < *start; ++in) { | |
498 | int nonlocal_errno = *errnop; | |
499 | ||
500 | for (i = 0; i < out; ++i) | |
501 | if ((*groupsp)[i] == (*groupsp)[in]) | |
502 | break; | |
503 | if (i < out) | |
504 | continue; | |
505 | ||
1e78305d AK |
506 | /* Don't let users get into MAGIC_LOCAL_GROUPNAME from nonlocal reasons. */ |
507 | if (local_users_gid == (*groupsp)[in]) { | |
508 | syslog(LOG_WARNING, "nss_nonlocal: Nonlocal user %s removed from special local users group %s", | |
509 | user, MAGIC_LOCAL_GROUPNAME); | |
510 | continue; | |
511 | } | |
512 | ||
f6903667 AK |
513 | status = check_nonlocal_gid(user, (*groupsp)[in], &nonlocal_errno); |
514 | if (status == NSS_STATUS_SUCCESS) { | |
1e78305d | 515 | (*groupsp)[out++] = (*groupsp)[in]; |
5879a696 | 516 | } else if (status == NSS_STATUS_TRYAGAIN) { |
f6903667 AK |
517 | *start = out; |
518 | *errnop = nonlocal_errno; | |
519 | return status; | |
520 | } | |
521 | } | |
522 | ||
523 | *start = out; | |
524 | return NSS_STATUS_SUCCESS; | |
525 | } |