| 1 | /*- |
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| 2 | * Copyright (c) 2002 Networks Associates Technology, Inc. |
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| 3 | * All rights reserved. |
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| 4 | * |
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| 5 | * This software was developed for the FreeBSD Project by ThinkSec AS and |
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| 6 | * Network Associates Laboratories, the Security Research Division of |
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| 7 | * Network Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 |
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| 8 | * ("CBOSS"), as part of the DARPA CHATS research program. |
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| 9 | * |
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| 10 | * Redistribution and use in source and binary forms, with or without |
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| 11 | * modification, are permitted provided that the following conditions |
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| 12 | * are met: |
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| 13 | * 1. Redistributions of source code must retain the above copyright |
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| 14 | * notice, this list of conditions and the following disclaimer. |
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| 15 | * 2. Redistributions in binary form must reproduce the above copyright |
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| 16 | * notice, this list of conditions and the following disclaimer in the |
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| 17 | * documentation and/or other materials provided with the distribution. |
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| 18 | * 3. The name of the author may not be used to endorse or promote |
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| 19 | * products derived from this software without specific prior written |
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| 20 | * permission. |
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| 21 | * |
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| 22 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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| 23 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| 25 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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| 26 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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| 27 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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| 28 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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| 29 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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| 30 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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| 31 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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| 32 | * SUCH DAMAGE. |
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| 33 | * |
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| 34 | * $P4: //depot/projects/openpam/lib/pam_getenv.c#12 $ |
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| 35 | */ |
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| 36 | |
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| 37 | #include <stdlib.h> |
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| 38 | #include <string.h> |
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| 39 | |
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| 40 | #include <security/pam_appl.h> |
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| 41 | |
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| 42 | #include "openpam_impl.h" |
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| 43 | |
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| 44 | /* |
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| 45 | * XSSO 4.2.1 |
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| 46 | * XSSO 6 page 44 |
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| 47 | * |
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| 48 | * Retrieve the value of a PAM environment variable |
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| 49 | */ |
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| 50 | |
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| 51 | char * |
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| 52 | pam_getenv(pam_handle_t *pamh, |
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| 53 | const char *name) |
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| 54 | { |
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| 55 | char *str; |
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| 56 | int i; |
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| 57 | |
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| 58 | ENTERS(name); |
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| 59 | if (pamh == NULL) |
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| 60 | RETURNS(NULL); |
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| 61 | if (name == NULL || strchr(name, '=') != NULL) |
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| 62 | RETURNS(NULL); |
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| 63 | if ((i = openpam_findenv(pamh, name, strlen(name))) == -1) |
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| 64 | RETURNS(NULL); |
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| 65 | for (str = pamh->env[i]; *str != '\0'; ++str) { |
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| 66 | if (*str == '=') { |
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| 67 | ++str; |
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| 68 | break; |
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| 69 | } |
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| 70 | } |
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| 71 | RETURNS(str); |
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| 72 | } |
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| 73 | |
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| 74 | /** |
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| 75 | * The =pam_getenv function returns the value of an environment variable. |
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| 76 | * Its semantics are similar to those of =getenv, but it accesses the PAM |
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| 77 | * context's environment list instead of the application's. |
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| 78 | * |
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| 79 | * >pam_getenvlist |
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| 80 | * >pam_putenv |
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| 81 | * >pam_setenv |
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| 82 | */ |
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