105 lines
3.3 KiB
C
105 lines
3.3 KiB
C
/*-
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* Copyright (c) 2002 Networks Associates Technologies, Inc.
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* All rights reserved.
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*
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* This software was developed for the FreeBSD Project by ThinkSec AS and
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* NAI Labs, the Security Research Division of Network Associates, Inc.
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* under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the
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* DARPA CHATS research program.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $P4: //depot/projects/openpam/lib/pam_getenvlist.c#7 $
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*/
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#include <stdlib.h>
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#include <string.h>
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#include <security/pam_appl.h>
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#include "openpam_impl.h"
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/*
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* XSSO 4.2.1
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* XSSO 6 page 45
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*
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* Returns a list of all the PAM environment variables
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*/
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char **
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pam_getenvlist(pam_handle_t *pamh)
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{
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char **envlist;
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int i;
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if (pamh == NULL)
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return (NULL);
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envlist = malloc(sizeof(char *) * (pamh->env_count + 1));
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if (envlist == NULL) {
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openpam_log(PAM_LOG_ERROR, "%s",
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pam_strerror(pamh, PAM_BUF_ERR));
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return (NULL);
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}
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for (i = 0; i < pamh->env_count; ++i) {
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if ((envlist[i] = strdup(pamh->env[i])) == NULL) {
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while (i)
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free(envlist[--i]);
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free(envlist);
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openpam_log(PAM_LOG_ERROR, "%s",
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pam_strerror(pamh, PAM_BUF_ERR));
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return (NULL);
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}
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}
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envlist[i] = NULL;
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openpam_log(PAM_LOG_DEBUG, "returning %d variables\n", pamh->env_count);
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return (envlist);
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}
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/**
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* The =pam_getenvlist function returns a copy of the given PAM context's
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* environment list as a pointer to an array of strings.
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* The last element in the array is =NULL.
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* The pointer is suitable for assignment to {Va environ}.
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*
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* The array and the strings it lists are allocated using =malloc, and
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* should be released using =free after use:
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*
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* char **envlist, **env;
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*
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* envlist = environ;
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* environ = pam_getenvlist(pamh);
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* \/\* do something nifty \*\/
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* for (env = environ; *env != NULL; env++)
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* free(*env);
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* free(environ);
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* environ = envlist;
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*
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* >environ 7
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* >pam_getenv
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* >pam_putenv
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* >pam_setenv
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*/
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