lib/util/util_pw.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Safe versions of getpw* calls
   5
   6    Copyright (C) Andrew Tridgell 1992-1998
   7    Copyright (C) Jeremy Allison  1998-2005
   8    Copyright (C) Andrew Bartlett 2002
   9    Copyright (C) Timur Bakeyev        2005
  10    Copyright (C) Bjoern Jacke    2006-2007
  11
  12
  13    This program is free software; you can redistribute it and/or modify
  14    it under the terms of the GNU General Public License as published by
  15    the Free Software Foundation; either version 3 of the License, or
  16    (at your option) any later version.
  17
  18    This program is distributed in the hope that it will be useful,
  19    but WITHOUT ANY WARRANTY; without even the implied warranty of
  20    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21    GNU General Public License for more details.
  22
  23    You should have received a copy of the GNU General Public License
  24    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  25 */
  26
  27 #include "includes.h"
  28 #include "system/passwd.h"
  29 #include "lib/util/util_pw.h"
  30
  31 struct passwd *tcopy_passwd(TALLOC_CTX *mem_ctx,
  32                             const struct passwd *from)
  33 {
  34         struct passwd *ret = talloc_zero(mem_ctx, struct passwd);
  35
  36         if (ret == NULL)
  37                 return NULL;
  38
  39         ret->pw_name = talloc_strdup(ret, from->pw_name);
  40         ret->pw_passwd = talloc_strdup(ret, from->pw_passwd);
  41         ret->pw_uid = from->pw_uid;
  42         ret->pw_gid = from->pw_gid;
  43         ret->pw_gecos = talloc_strdup(ret, from->pw_gecos);
  44         ret->pw_dir = talloc_strdup(ret, from->pw_dir);
  45         ret->pw_shell = talloc_strdup(ret, from->pw_shell);
  46
  47         return ret;
  48 }
  49
  50 struct passwd *getpwnam_alloc(TALLOC_CTX *mem_ctx, const char *name)
  51 {
  52         struct passwd *temp;
  53
  54         temp = getpwnam(name);
  55
  56         if (!temp) {
  57 #if 0
  58                 if (errno == ENOMEM) {
  59                         /* what now? */
  60                 }
  61 #endif
  62                 return NULL;
  63         }
  64
  65         return tcopy_passwd(mem_ctx, temp);
  66 }
  67
  68 /****************************************************************************
  69  talloc'ed version of getpwuid.
  70 ****************************************************************************/
  71
  72 struct passwd *getpwuid_alloc(TALLOC_CTX *mem_ctx, uid_t uid)
  73 {
  74         struct passwd *temp;
  75
  76         temp = getpwuid(uid);
  77
  78         if (!temp) {
  79 #if 0
  80                 if (errno == ENOMEM) {
  81                         /* what now? */
  82                 }
  83 #endif
  84                 return NULL;
  85         }
  86
  87         return tcopy_passwd(mem_ctx, temp);
  88 }