Fix bug #9147 - winbind can't fetch user or group info from AD via LDAP
[Samba.git] / source3 / lib / util_pw.c
blobb0baa12c3e54f123e9299454e75e644ddc1d892e
1 /*
2 Unix SMB/CIFS implementation.
4 Safe versions of getpw* calls
6 Copyright (C) Andrew Bartlett 2002
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>.
22 #include "includes.h"
24 struct passwd *tcopy_passwd(TALLOC_CTX *mem_ctx, const struct passwd *from)
26 struct passwd *ret = TALLOC_P(mem_ctx, struct passwd);
27 if (!ret) {
28 return NULL;
30 ret->pw_name = talloc_strdup(ret, from->pw_name);
31 ret->pw_passwd = talloc_strdup(ret, from->pw_passwd);
32 ret->pw_uid = from->pw_uid;
33 ret->pw_gid = from->pw_gid;
34 ret->pw_gecos = talloc_strdup(ret, from->pw_gecos);
35 ret->pw_dir = talloc_strdup(ret, from->pw_dir);
36 ret->pw_shell = talloc_strdup(ret, from->pw_shell);
37 return ret;
40 void flush_pwnam_cache(void)
42 memcache_flush(NULL, GETPWNAM_CACHE);
45 struct passwd *getpwnam_alloc(TALLOC_CTX *mem_ctx, const char *name)
47 struct passwd *pw, *for_cache;
49 pw = (struct passwd *)memcache_lookup_talloc(
50 NULL, GETPWNAM_CACHE, data_blob_string_const_null(name));
51 if (pw != NULL) {
52 return tcopy_passwd(mem_ctx, pw);
55 pw = sys_getpwnam(name);
56 if (pw == NULL) {
57 return NULL;
60 for_cache = tcopy_passwd(talloc_autofree_context(), pw);
61 if (for_cache == NULL) {
62 return NULL;
65 memcache_add_talloc(NULL, GETPWNAM_CACHE,
66 data_blob_string_const_null(name), &for_cache);
68 return tcopy_passwd(mem_ctx, pw);
71 struct passwd *getpwuid_alloc(TALLOC_CTX *mem_ctx, uid_t uid)
73 struct passwd *temp;
75 temp = sys_getpwuid(uid);
77 if (!temp) {
78 #if 0
79 if (errno == ENOMEM) {
80 /* what now? */
82 #endif
83 return NULL;
86 return tcopy_passwd(mem_ctx, temp);