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git.ipfire.org Git - thirdparty/openssl.git/blob - crypto/uid.c
2 * Copyright 2001-2023 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
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
10 #include <openssl/crypto.h>
11 #include <openssl/opensslconf.h>
13 #if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_VXWORKS) || defined(OPENSSL_SYS_UEFI) || defined(__wasi__)
15 int OPENSSL_issetugid(void)
20 #elif defined(__OpenBSD__) || (defined(__FreeBSD__) && __FreeBSD__ > 2) || defined(__DragonFly__) || (defined(__GLIBC__) && defined(__FreeBSD_kernel__))
24 int OPENSSL_issetugid(void)
32 # include <sys/types.h>
34 # if defined(__GLIBC__) && defined(__GLIBC_PREREQ)
35 # if __GLIBC_PREREQ(2, 16)
36 # include <sys/auxv.h>
37 # define OSSL_IMPLEMENT_GETAUXVAL
39 # elif defined(__ANDROID_API__)
40 /* see https://developer.android.google.cn/ndk/guides/cpu-features */
41 # if __ANDROID_API__ >= 18
42 # include <sys/auxv.h>
43 # define OSSL_IMPLEMENT_GETAUXVAL
47 int OPENSSL_issetugid(void)
49 # ifdef OSSL_IMPLEMENT_GETAUXVAL
50 return getauxval(AT_SECURE
) != 0;
52 return getuid() != geteuid() || getgid() != getegid();