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6d7e8eda | 1 | /* Copyright (c) 1997-2023 Free Software Foundation, Inc. |
51702635 | 2 | This file is part of the GNU C Library. |
51702635 UD |
3 | |
4 | The GNU C Library is free software; you can redistribute it and/or | |
41bdb6e2 AJ |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either | |
7 | version 2.1 of the License, or (at your option) any later version. | |
51702635 UD |
8 | |
9 | The GNU C Library is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
41bdb6e2 | 12 | Lesser General Public License for more details. |
51702635 | 13 | |
41bdb6e2 | 14 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 | 15 | License along with the GNU C Library; if not, see |
5a82c748 | 16 | <https://www.gnu.org/licenses/>. */ |
51702635 | 17 | |
9be31a51 | 18 | #include <assert.h> |
51702635 UD |
19 | #include <string.h> |
20 | #include <rpcsvc/nis.h> | |
82f43dd2 | 21 | #include <shlib-compat.h> |
51702635 UD |
22 | |
23 | nis_error | |
24 | nis_removemember (const_nis_name member, const_nis_name group) | |
25 | { | |
a53bad16 | 26 | if (group != NULL && group[0] != '\0') |
51702635 | 27 | { |
a53bad16 UD |
28 | size_t grouplen = strlen (group); |
29 | char buf[grouplen + 14 + NIS_MAXNAMELEN]; | |
a53bad16 | 30 | char domainbuf[grouplen + 2]; |
51702635 UD |
31 | nis_result *res, *res2; |
32 | nis_error status; | |
33 | char *cp, *cp2; | |
51702635 | 34 | |
32c7acd4 | 35 | cp = strchr (nis_leaf_of_r (group, buf, sizeof (buf) - 1), '\0'); |
51702635 UD |
36 | cp = stpcpy (cp, ".groups_dir"); |
37 | cp2 = nis_domain_of_r (group, domainbuf, sizeof (domainbuf) - 1); | |
a53bad16 | 38 | if (cp2 != NULL && cp2[0] != '\0') |
51702635 UD |
39 | { |
40 | cp = stpcpy (cp, "."); | |
714a562f | 41 | stpcpy (cp, cp2); |
51702635 | 42 | } |
672d5a63 UD |
43 | res = nis_lookup (buf, FOLLOW_LINKS | EXPAND_NAME); |
44 | if (res == NULL) | |
45 | return NIS_NOMEMORY; | |
46 | if (NIS_RES_STATUS (res) != NIS_SUCCESS) | |
51702635 | 47 | { |
672d5a63 UD |
48 | status = NIS_RES_STATUS (res); |
49 | nis_freeresult (res); | |
51702635 UD |
50 | return status; |
51 | } | |
dfd2257a | 52 | |
672d5a63 UD |
53 | if (NIS_RES_NUMOBJ (res) != 1 |
54 | || __type_of (NIS_RES_OBJECT (res)) != NIS_GROUP_OBJ) | |
32abdb71 UD |
55 | { |
56 | nis_freeresult (res); | |
57 | return NIS_INVALIDOBJ; | |
58 | } | |
51702635 | 59 | |
672d5a63 UD |
60 | nis_name *gr_members_val |
61 | = NIS_RES_OBJECT(res)->GR_data.gr_members.gr_members_val; | |
62 | u_int gr_members_len | |
63 | = NIS_RES_OBJECT(res)->GR_data.gr_members.gr_members_len; | |
32abdb71 | 64 | |
672d5a63 UD |
65 | u_int j = 0; |
66 | for (u_int i = 0; i < gr_members_len; ++i) | |
67 | if (strcmp (gr_members_val[i], member) != 0) | |
68 | gr_members_val[j++] = gr_members_val[i]; | |
69 | else | |
70 | free (gr_members_val[i]); | |
32abdb71 | 71 | |
672d5a63 UD |
72 | /* There is no need to reallocate the gr_members_val array. We |
73 | just adjust the size to match the number of strings still in | |
74 | it. Yes, xdr_array will use mem_free with a size parameter | |
75 | but this is mapped to a simple free call which determines the | |
76 | size of the block by itself. */ | |
77 | NIS_RES_OBJECT (res)->GR_data.gr_members.gr_members_len = j; | |
714a562f | 78 | |
dfd2257a | 79 | cp = stpcpy (buf, NIS_RES_OBJECT (res)->zo_name); |
714a562f | 80 | *cp++ = '.'; |
dfd2257a UD |
81 | strncpy (cp, NIS_RES_OBJECT (res)->zo_domain, NIS_MAXNAMELEN); |
82 | res2 = nis_modify (buf, NIS_RES_OBJECT (res)); | |
91eee4dd | 83 | status = NIS_RES_STATUS (res2); |
51702635 UD |
84 | nis_freeresult (res); |
85 | nis_freeresult (res2); | |
86 | ||
87 | return status; | |
88 | } | |
89 | else | |
90 | return NIS_FAIL; | |
91 | } | |
1e4d83f6 | 92 | libnsl_hidden_nolink_def (nis_removemember, GLIBC_2_1) |