文件操作 - getenv.c
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文件: /usr/local/src/openssl-1.1.1w/crypto/getenv.c
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/* * Copyright 2018 The OpenSSL Project Authors. All Rights Reserved. * * Licensed under the OpenSSL license (the "License"). You may not use * this file except in compliance with the License. You can obtain a copy * in the file LICENSE in the source distribution or at * https://www.openssl.org/source/license.html */ #ifndef _GNU_SOURCE # define _GNU_SOURCE #endif #include <stdlib.h> #include "internal/cryptlib.h" char *ossl_safe_getenv(const char *name) { #if defined(__GLIBC__) && defined(__GLIBC_PREREQ) # if __GLIBC_PREREQ(2, 17) # define SECURE_GETENV return secure_getenv(name); # endif #endif #ifndef SECURE_GETENV if (OPENSSL_issetugid()) return NULL; return getenv(name); #endif }
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