2 * Copyright (c) 2002-2003 Networks Associates Technology, Inc.
3 * Copyright (c) 2004-2007 Dag-Erling Smørgrav
6 * This software was developed for the FreeBSD Project by ThinkSec AS and
7 * Network Associates Laboratories, the Security Research Division of
8 * Network Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035
9 * ("CBOSS"), as part of the DARPA CHATS research program.
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. The name of the author may not be used to endorse or promote
20 * products derived from this software without specific prior written
23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * $Id: pam_putenv.c 408 2007-12-21 11:36:24Z des $
41 #include <security/pam_appl.h>
43 #include "openpam_impl.h"
49 * Set the value of an environment variable
53 pam_putenv(pam_handle_t *pamh,
54 const char *namevalue)
61 RETURNC(PAM_SYSTEM_ERR);
64 if (namevalue == NULL || (p = strchr(namevalue, '=')) == NULL)
65 RETURNC(PAM_SYSTEM_ERR);
67 /* see if the variable is already in the environment */
68 if ((i = openpam_findenv(pamh, namevalue, p - namevalue)) >= 0) {
69 if ((p = strdup(namevalue)) == NULL)
76 /* grow the environment list if necessary */
77 if (pamh->env_count == pamh->env_size) {
78 env = realloc(pamh->env,
79 sizeof(char *) * (pamh->env_size * 2 + 1));
83 pamh->env_size = pamh->env_size * 2 + 1;
86 /* add the variable at the end */
87 if ((pamh->env[pamh->env_count] = strdup(namevalue)) == NULL)
101 * The =pam_putenv function sets a environment variable.
102 * Its semantics are similar to those of =putenv, but it modifies the PAM
103 * context's environment list instead of the application's.