Commit | Line | Data |
---|---|---|
fb23d554 SDJ |
1 | /* Safe version of strerror for POSIX systems for GDB, the GNU debugger. |
2 | ||
42a4f53d | 3 | Copyright (C) 2006-2019 Free Software Foundation, Inc. |
fb23d554 SDJ |
4 | |
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 3 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
19 | ||
20 | #include "common-defs.h" | |
5abebf3c | 21 | #include <string.h> |
fb23d554 SDJ |
22 | |
23 | /* Implementation of safe_strerror as defined in common-utils.h. */ | |
24 | ||
b231e86a | 25 | const char * |
fb23d554 SDJ |
26 | safe_strerror (int errnum) |
27 | { | |
b231e86a CB |
28 | static thread_local char buf[1024]; |
29 | ||
5abebf3c CB |
30 | /* Assign the return value to an int, so we get an error if we accidentally |
31 | get the wrong version of this function (glibc has two of them...). */ | |
32 | int ret = strerror_r (errnum, buf, sizeof (buf)); | |
33 | if (ret == 0) | |
34 | return buf; | |
35 | ||
36 | xsnprintf (buf, sizeof buf, "(undocumented errno %d)", errnum); | |
37 | return buf; | |
fb23d554 | 38 | } |