e2568c41cb
Someone tried to build us with Ubuntu's MinGW. This is too old to be supported (the tests rather badly fail to build), but some of the fixes will likely be useful for eventually building Clang for Windows standalone too. Change-Id: I6d279a0da1346b4e0813de51df3373b7412de33a Reviewed-on: https://boringssl-review.googlesource.com/19364 Commit-Queue: Adam Langley <agl@google.com> Reviewed-by: Adam Langley <agl@google.com> CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
47 lines
1.6 KiB
C
47 lines
1.6 KiB
C
/* Copyright (c) 2017, Google Inc.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
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#include <openssl/rand.h>
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#include <stdlib.h>
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#include "../fipsmodule/rand/internal.h"
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/* g_buffering_enabled is true if fork-unsafe buffering has been enabled. */
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static int g_buffering_enabled = 0;
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/* g_lock protects |g_buffering_enabled|. */
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static struct CRYPTO_STATIC_MUTEX g_lock = CRYPTO_STATIC_MUTEX_INIT;
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#if !defined(OPENSSL_WINDOWS)
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void RAND_enable_fork_unsafe_buffering(int fd) {
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/* We no longer support setting the file-descriptor with this function. */
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if (fd != -1) {
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abort();
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}
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CRYPTO_STATIC_MUTEX_lock_write(&g_lock);
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g_buffering_enabled = 1;
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CRYPTO_STATIC_MUTEX_unlock_write(&g_lock);
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}
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#endif
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int rand_fork_unsafe_buffering_enabled(void) {
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CRYPTO_STATIC_MUTEX_lock_read(&g_lock);
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const int ret = g_buffering_enabled;
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CRYPTO_STATIC_MUTEX_unlock_read(&g_lock);
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return ret;
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}
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