contrib/openpam/lib/libpam/openpam_free_envlist.c

   1 /*-
   2  * Copyright (c) 2005-2011 Dag-Erling Smørgrav
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. The name of the author may not be used to endorse or promote products
  14  *    derived from this software without specific prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26  *
  27  * $OpenPAM: openpam_free_envlist.c 938 2017-04-30 21:34:42Z des $
  28  */
  29
  30 #ifdef HAVE_CONFIG_H
  31 # include "config.h"
  32 #endif
  33
  34 #include <stdlib.h>
  35
  36 #include <security/pam_appl.h>
  37
  38 #include "openpam_impl.h"
  39
  40 /*
  41  * OpenPAM extension
  42  *
  43  * Free an environment list
  44  */
  45
  46 void
  47 openpam_free_envlist(char **envlist)
  48 {
  49         char **env;
  50
  51         ENTER();
  52         if (envlist == NULL)
  53                 RETURNV();
  54         for (env = envlist; *env != NULL; ++env)
  55                 FREE(*env);
  56         FREE(envlist);
  57         RETURNV();
  58 }
  59
  60 /*
  61  * Error codes:
  62  */
  63
  64 /**
  65  * The =openpam_free_envlist function is a convenience function which
  66  * frees all the environment variables in an environment list, and the
  67  * list itself.
  68  * It is suitable for freeing the return value from =pam_getenvlist.
  69  *
  70  * AUTHOR DES
  71  */