| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| */ |
| |
| // Get the POSIX definition of strerror_r. |
| #define _POSIX_C_SOURCE 200112L |
| #undef _GNU_SOURCE |
| |
| #include "util/build.h" |
| #include "util/log.h" |
| |
| #include <errno.h> |
| #include <stdio.h> |
| #include <string.h> |
| |
| /** |
| * @file terror.c |
| * |
| * Implements the thread-safe terror() function. |
| * |
| * glibc makes it difficult to get access to the POSIX definition of strerror_r. |
| * Keeping this in a separate file allows us to put the proper macro magic at |
| * the top of just this file. |
| */ |
| |
| #ifdef HAVE_IMPROVED_TLS |
| const char *terror(int err) |
| { |
| static __thread char buf[4096]; |
| int ret; |
| |
| ret = strerror_r(err, buf, sizeof(buf)); |
| if (ret) { |
| return "unknown error"; |
| } |
| return buf; |
| } |
| #else |
| extern const char *sys_errlist[]; |
| extern int sys_nerr; |
| |
| const char *terror(int err) |
| { |
| if (err >= sys_nerr) { |
| return "unknown error"; |
| } |
| return sys_errlist[err]; |
| } |
| #endif |
| |
| // vim: ts=4:sw=4:et |