1 /* Copyright (c) 1997, 1998, 1999, 2006 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Thorsten Kukuk <kukuk@suse.de>, 1997.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
20 #include <rpcsvc/nis.h>
22 /* internal_nis_ismember ()
23 return codes: -1 principal is in -group
24 0 principal isn't in any group
25 1 pirncipal is in group */
27 internal_ismember (const_nis_name principal, const_nis_name group)
29 size_t grouplen = strlen (group);
30 char buf[grouplen + 50];
31 char leafbuf[grouplen + 2];
32 char domainbuf[grouplen + 2];
37 cp = stpcpy (buf, nis_leaf_of_r (group, leafbuf, sizeof (leafbuf) - 1));
38 cp = stpcpy (cp, ".groups_dir");
39 cp2 = nis_domain_of_r (group, domainbuf, sizeof (domainbuf) - 1);
40 if (cp2 != NULL && cp2[0] != '\0')
46 res = nis_lookup (buf, EXPAND_NAME|FOLLOW_LINKS);
47 if (res == NULL || NIS_RES_STATUS (res) != NIS_SUCCESS)
53 if ((NIS_RES_NUMOBJ (res) != 1) ||
54 (__type_of (NIS_RES_OBJECT (res)) != NIS_GROUP_OBJ))
60 /* We search twice in the list, at first, if we have the name
61 with a "-", then if without. "-member" has priority */
62 for (i = 0; i < NIS_RES_OBJECT(res)->GR_data.gr_members.gr_members_len; ++i)
64 cp = NIS_RES_OBJECT (res)->GR_data.gr_members.gr_members_val[i];
67 if (strcmp (&cp[1], principal) == 0)
73 switch (internal_ismember (principal, &cp[2]))
87 char buf1[strlen (principal) + 2];
88 char buf2[strlen (cp) + 2];
90 if (strcmp (nis_domain_of_r (principal, buf1, sizeof buf1),
91 nis_domain_of_r (cp, buf2, sizeof buf2)) == 0)
100 for (i = 0; i < NIS_RES_OBJECT (res)->GR_data.gr_members.gr_members_len; ++i)
102 cp = NIS_RES_OBJECT (res)->GR_data.gr_members.gr_members_val[i];
105 if (strcmp (cp, principal) == 0)
107 nis_freeresult (res);
111 switch (internal_ismember (principal, &cp[1]))
114 nis_freeresult (res);
117 nis_freeresult (res);
125 char buf1[strlen (principal) + 2];
126 char buf2[strlen (cp) + 2];
128 if (strcmp (nis_domain_of_r (principal, buf1, sizeof buf1),
129 nis_domain_of_r (cp, buf2, sizeof buf2)) == 0)
131 nis_freeresult (res);
137 nis_freeresult (res);
142 nis_ismember (const_nis_name principal, const_nis_name group)
144 if (group != NULL && group[0] != '\0' && principal != NULL)
145 return internal_ismember (principal, group) == 1 ? TRUE : FALSE;