openssl/test/errtest.c

/*
 * Copyright 2018 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the Apache License 2.0 (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
 */

#include <openssl/opensslconf.h>
#include <openssl/err.h>

#include "testutil.h"

#if defined(OPENSSL_SYS_WINDOWS)
# include <windows.h>
#else
# include <errno.h>
#endif

/* Test that querying the error queue preserves the OS error. */
static int preserves_system_error(void)
{
#if defined(OPENSSL_SYS_WINDOWS)
    SetLastError(ERROR_INVALID_FUNCTION);
    ERR_get_error();
    return TEST_int_eq(GetLastError(), ERROR_INVALID_FUNCTION);
#else
    errno = EINVAL;
    ERR_get_error();
    return TEST_int_eq(errno, EINVAL);
#endif
}

int setup_tests(void)
{
    ADD_TEST(preserves_system_error);
    return 1;
}