]>
Commit | Line | Data |
---|---|---|
a53bad16 | 1 | /* Copyright (c) 1997, 1998 Free Software Foundation, Inc. |
51702635 UD |
2 | This file is part of the GNU C Library. |
3 | Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997. | |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Library General Public License as | |
7 | published by the Free Software Foundation; either version 2 of the | |
8 | License, or (at your option) any later version. | |
9 | ||
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 | Library General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Library General Public | |
16 | License along with the GNU C Library; see the file COPYING.LIB. If not, | |
17 | write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
18 | Boston, MA 02111-1307, USA. */ | |
19 | ||
20 | #include <string.h> | |
21 | #include <rpcsvc/nis.h> | |
51702635 UD |
22 | |
23 | /* internal_nis_ismember () | |
24 | return codes: -1 principal is in -group | |
25 | 0 principal isn't in any group | |
26 | 1 pirncipal is in group */ | |
27 | static int | |
28 | internal_ismember (const_nis_name principal, const_nis_name group) | |
29 | { | |
a53bad16 UD |
30 | size_t grouplen = strlen (group); |
31 | char buf[grouplen + 50]; | |
32 | char leafbuf[grouplen + 2]; | |
33 | char domainbuf[grouplen + 2]; | |
dfd2257a UD |
34 | nis_result *res; |
35 | char *cp, *cp2; | |
36 | u_int i; | |
51702635 | 37 | |
dfd2257a UD |
38 | cp = stpcpy (buf, nis_leaf_of_r (group, leafbuf, sizeof (leafbuf) - 1)); |
39 | cp = stpcpy (cp, ".groups_dir"); | |
40 | cp2 = nis_domain_of_r (group, domainbuf, sizeof (domainbuf) - 1); | |
a53bad16 | 41 | if (cp2 != NULL && cp2[0] != '\0') |
dfd2257a UD |
42 | { |
43 | *cp++ = '.'; | |
44 | strcpy (cp, cp2); | |
45 | } | |
46 | res = nis_lookup (buf, EXPAND_NAME|FOLLOW_LINKS); | |
47 | if (NIS_RES_STATUS (res) != NIS_SUCCESS) | |
48 | return 0; | |
51702635 | 49 | |
dfd2257a UD |
50 | if ((NIS_RES_NUMOBJ (res) != 1) || |
51 | (__type_of (NIS_RES_OBJECT (res)) != NIS_GROUP_OBJ)) | |
52 | return 0; | |
51702635 | 53 | |
dfd2257a UD |
54 | /* We search twice in the list, at first, if we have the name |
55 | with a "-", then if without. "-member" has priority */ | |
56 | for (i = 0; i < NIS_RES_OBJECT(res)->GR_data.gr_members.gr_members_len; ++i) | |
57 | { | |
58 | cp = NIS_RES_OBJECT (res)->GR_data.gr_members.gr_members_val[i]; | |
59 | if (cp[0] == '-') | |
51702635 | 60 | { |
dfd2257a UD |
61 | if (strcmp (&cp[1], principal) == 0) |
62 | return -1; | |
63 | if (cp[1] == '@') | |
64 | switch (internal_ismember (principal, &cp[2])) | |
65 | { | |
66 | case -1: | |
51702635 | 67 | return -1; |
dfd2257a UD |
68 | case 1: |
69 | return -1; | |
70 | default: | |
71 | break; | |
72 | } | |
73 | else | |
74 | if (cp[1] == '*') | |
75 | { | |
76 | char buf1[strlen (principal) + 2]; | |
77 | char buf2[strlen (cp) + 2]; | |
51702635 | 78 | |
dfd2257a UD |
79 | strcpy (buf1, nis_domain_of (principal)); |
80 | strcpy (buf2, nis_domain_of (cp)); | |
81 | if (strcmp (buf1, buf2) == 0) | |
82 | return -1; | |
83 | } | |
51702635 | 84 | } |
dfd2257a UD |
85 | } |
86 | for (i = 0; i < NIS_RES_OBJECT (res)->GR_data.gr_members.gr_members_len; ++i) | |
87 | { | |
88 | cp = NIS_RES_OBJECT (res)->GR_data.gr_members.gr_members_val[i]; | |
89 | if (cp[0] != '-') | |
51702635 | 90 | { |
dfd2257a UD |
91 | if (strcmp (cp, principal) == 0) |
92 | return 1; | |
93 | if (cp[0] == '@') | |
94 | switch (internal_ismember (principal, &cp[1])) | |
95 | { | |
96 | case -1: | |
97 | return -1; | |
98 | case 1: | |
51702635 | 99 | return 1; |
dfd2257a UD |
100 | default: |
101 | break; | |
102 | } | |
103 | else | |
104 | if (cp[0] == '*') | |
105 | { | |
106 | char buf1[strlen (principal) + 2]; | |
107 | char buf2[strlen (cp) + 2]; | |
51702635 | 108 | |
dfd2257a UD |
109 | if (strcmp (nis_domain_of_r (principal, buf1, sizeof buf1), |
110 | nis_domain_of_r (cp, buf2, sizeof buf2)) == 0) | |
111 | return 1; | |
112 | } | |
51702635 UD |
113 | } |
114 | } | |
51702635 UD |
115 | return 0; |
116 | } | |
117 | ||
118 | bool_t | |
119 | nis_ismember (const_nis_name principal, const_nis_name group) | |
120 | { | |
a53bad16 | 121 | if (group != NULL && group[0] != '\0' && principal != NULL) |
714a562f | 122 | return internal_ismember (principal, group) == 1 ? TRUE : FALSE; |
51702635 UD |
123 | else |
124 | return FALSE; | |
125 | } |