51 lines
1.7 KiB
C++
51 lines
1.7 KiB
C++
// Licensed to the Apache Software Foundation (ASF) under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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#include "util/errno.h"
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#include <cstring>
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#include "gutil/dynamic_annotations.h"
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namespace doris {
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void errno_to_cstring(int err, char* buf, size_t buf_len) {
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#if !defined(__GLIBC__) || \
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((_POSIX_C_SOURCE >= 200112 || _XOPEN_SOURCE >= 600) && !defined(_GNU_SOURCE))
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// Using POSIX version 'int strerror_r(...)'.
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int ret = strerror_r(err, buf, buf_len);
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if (ret && ret != ERANGE && ret != EINVAL) {
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strncpy(buf, "unknown error", buf_len);
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buf[buf_len - 1] = '\0';
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}
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#else
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// Using GLIBC version
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// KUDU-1515: TSAN in Clang 3.9 has an incorrect interceptor for strerror_r:
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// https://github.com/google/sanitizers/issues/696
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ANNOTATE_IGNORE_WRITES_BEGIN();
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char* ret = strerror_r(err, buf, buf_len);
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ANNOTATE_IGNORE_WRITES_END();
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if (ret != buf) {
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strncpy(buf, ret, buf_len);
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buf[buf_len - 1] = '\0';
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}
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#endif
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}
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} // namespace doris
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