| 1 | /*- |
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| 2 | * Copyright (c) 2002-2003 Networks Associates Technology, Inc. |
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| 3 | * Copyright (c) 2004-2010 Dag-Erling Smørgrav |
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| 4 | * All rights reserved. |
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| 5 | * |
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| 6 | * This software was developed for the FreeBSD Project by ThinkSec AS and |
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| 7 | * Network Associates Laboratories, the Security Research Division of |
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| 8 | * Network Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 |
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| 9 | * ("CBOSS"), as part of the DARPA CHATS research program. |
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| 10 | * |
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| 11 | * Redistribution and use in source and binary forms, with or without |
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| 12 | * modification, are permitted provided that the following conditions |
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| 13 | * are met: |
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| 14 | * 1. Redistributions of source code must retain the above copyright |
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| 15 | * notice, this list of conditions and the following disclaimer. |
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| 16 | * 2. Redistributions in binary form must reproduce the above copyright |
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| 17 | * notice, this list of conditions and the following disclaimer in the |
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| 18 | * documentation and/or other materials provided with the distribution. |
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| 19 | * 3. The name of the author may not be used to endorse or promote |
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| 20 | * products derived from this software without specific prior written |
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| 21 | * permission. |
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| 22 | * |
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| 23 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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| 24 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 25 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| 26 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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| 27 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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| 28 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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| 29 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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| 30 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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| 31 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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| 32 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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| 33 | * SUCH DAMAGE. |
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| 34 | * |
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| 35 | * $Id$ |
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| 36 | */ |
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| 37 | |
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| 38 | #ifdef HAVE_CONFIG_H |
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| 39 | # include "config.h" |
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| 40 | #endif |
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| 41 | |
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| 42 | #include <stdlib.h> |
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| 43 | #include <string.h> |
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| 44 | |
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| 45 | #include <security/pam_appl.h> |
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| 46 | |
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| 47 | #include "openpam_impl.h" |
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| 48 | |
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| 49 | /* |
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| 50 | * XSSO 4.2.1 |
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| 51 | * XSSO 6 page 45 |
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| 52 | * |
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| 53 | * Returns a list of all the PAM environment variables |
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| 54 | */ |
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| 55 | |
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| 56 | char ** |
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| 57 | pam_getenvlist(pam_handle_t *pamh) |
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| 58 | { |
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| 59 | char **envlist; |
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| 60 | int i; |
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| 61 | |
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| 62 | ENTER(); |
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| 63 | if (pamh == NULL) |
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| 64 | RETURNP(NULL); |
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| 65 | envlist = malloc(sizeof(char *) * (pamh->env_count + 1)); |
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| 66 | if (envlist == NULL) { |
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| 67 | openpam_log(PAM_LOG_ERROR, "%s", |
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| 68 | pam_strerror(pamh, PAM_BUF_ERR)); |
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| 69 | RETURNP(NULL); |
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| 70 | } |
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| 71 | for (i = 0; i < pamh->env_count; ++i) { |
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| 72 | if ((envlist[i] = strdup(pamh->env[i])) == NULL) { |
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| 73 | while (i) { |
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| 74 | --i; |
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| 75 | FREE(envlist[i]); |
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| 76 | } |
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| 77 | FREE(envlist); |
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| 78 | openpam_log(PAM_LOG_ERROR, "%s", |
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| 79 | pam_strerror(pamh, PAM_BUF_ERR)); |
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| 80 | RETURNP(NULL); |
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| 81 | } |
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| 82 | } |
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| 83 | envlist[i] = NULL; |
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| 84 | RETURNP(envlist); |
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| 85 | } |
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| 86 | |
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| 87 | /** |
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| 88 | * The =pam_getenvlist function returns a copy of the given PAM context's |
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| 89 | * environment list as a pointer to an array of strings. |
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| 90 | * The last element in the array is =NULL. |
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| 91 | * The pointer is suitable for assignment to {Va environ}. |
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| 92 | * |
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| 93 | * The array and the strings it lists are allocated using =malloc, and |
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| 94 | * should be released using =free after use: |
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| 95 | * |
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| 96 | * char **envlist, **env; |
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| 97 | * |
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| 98 | * envlist = environ; |
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| 99 | * environ = pam_getenvlist(pamh); |
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| 100 | * \/\* do something nifty \*\/ |
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| 101 | * for (env = environ; *env != NULL; env++) |
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| 102 | * free(*env); |
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| 103 | * free(environ); |
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| 104 | * environ = envlist; |
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| 105 | * |
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| 106 | * >environ 7 |
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| 107 | * >pam_getenv |
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| 108 | * >pam_putenv |
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| 109 | * >pam_setenv |
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| 110 | */ |
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