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/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#undef _GNU_SOURCE
#include <features.h> // Get __BIONIC__ or __GLIBC__ so we can tell what we're using.
#if defined(__GLIBC__)
// At the time of writing, libcxx -- which is dragged in by gtest -- assumes
// declarations from glibc of things that aren't available without __USE_GNU.
// This means we can't even build this test (which is a problem because that
// means it doesn't get included in CTS).
// For glibc 2.15, the symbols in question are:
// at_quick_exit, quick_exit, vasprintf, strtoll_l, strtoull_l, and strtold_l.
# if __GLIBC_PREREQ(2, 19)
# error check whether we can build this now...
# endif
#else
#include <string.h>
#include <errno.h>
#include <gtest/gtest.h>
TEST(string, posix_strerror_r) {
char buf[256];
// Valid.
ASSERT_EQ(0, strerror_r(0, buf, sizeof(buf)));
ASSERT_STREQ("Success", buf);
ASSERT_EQ(0, strerror_r(1, buf, sizeof(buf)));
ASSERT_STREQ("Operation not permitted", buf);
// Invalid.
ASSERT_EQ(0, strerror_r(-1, buf, sizeof(buf)));
ASSERT_STREQ("Unknown error -1", buf);
ASSERT_EQ(0, strerror_r(1234, buf, sizeof(buf)));
ASSERT_STREQ("Unknown error 1234", buf);
// Buffer too small.
errno = 0;
memset(buf, 0, sizeof(buf));
ASSERT_EQ(-1, strerror_r(4567, buf, 2));
ASSERT_STREQ("U", buf);
// The POSIX strerror_r sets errno to ERANGE (the GNU one doesn't).
ASSERT_EQ(ERANGE, errno);
}
#endif
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