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5c39a55d P |
1 | /* |
2 | * Copyright 2018 The OpenSSL Project Authors. All Rights Reserved. | |
3 | * | |
0e9725bc | 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
5c39a55d P |
5 | * this file except in compliance with the License. You can obtain a copy |
6 | * in the file LICENSE in the source distribution or at | |
7 | * https://www.openssl.org/source/license.html | |
8 | */ | |
9 | ||
10 | #ifndef _GNU_SOURCE | |
11 | # define _GNU_SOURCE | |
12 | #endif | |
13 | ||
14 | #include <stdlib.h> | |
15 | #include "internal/cryptlib.h" | |
16 | ||
17 | char *ossl_safe_getenv(const char *name) | |
18 | { | |
19 | #if defined(__GLIBC__) && defined(__GLIBC_PREREQ) | |
20 | # if __GLIBC_PREREQ(2, 17) | |
21 | # define SECURE_GETENV | |
22 | return secure_getenv(name); | |
23 | # endif | |
24 | #endif | |
25 | ||
26 | #ifndef SECURE_GETENV | |
27 | if (OPENSSL_issetugid()) | |
28 | return NULL; | |
29 | return getenv(name); | |
30 | #endif | |
31 | } |