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1 | #ifndef _BABELTRACE_COMPAT_STRING_H |
2 | #define _BABELTRACE_COMPAT_STRING_H | |
3 | ||
4 | /* | |
5 | * Copyright (C) 2013 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
6 | * | |
7 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
8 | * of this software and associated documentation files (the "Software"), to deal | |
9 | * in the Software without restriction, including without limitation the rights | |
10 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
11 | * copies of the Software, and to permit persons to whom the Software is | |
12 | * furnished to do so, subject to the following conditions: | |
13 | * | |
14 | * The above copyright notice and this permission notice shall be included in | |
15 | * all copies or substantial portions of the Software. | |
16 | * | |
17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
18 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
20 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
21 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
22 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
23 | * SOFTWARE. | |
24 | */ | |
25 | ||
26 | #include <string.h> | |
27 | ||
28 | #if !defined(__linux__) || ((_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600) && !defined(_GNU_SOURCE)) | |
29 | ||
30 | /* XSI-compliant strerror_r */ | |
31 | static inline | |
32 | int compat_strerror_r(int errnum, char *buf, size_t buflen) | |
33 | { | |
34 | return strerror_r(errnum, buf, buflen); | |
35 | } | |
36 | ||
37 | #else | |
38 | ||
39 | /* GNU-compliant strerror_r */ | |
40 | static inline | |
41 | int compat_strerror_r(int errnum, char *buf, size_t buflen) | |
42 | { | |
43 | char *retbuf; | |
44 | ||
45 | retbuf = strerror_r(errnum, buf, buflen); | |
46 | if (retbuf != buf) | |
47 | strncpy(buf, retbuf, buflen); | |
48 | buf[buflen - 1] = '\0'; | |
49 | return 0; | |
50 | } | |
51 | ||
52 | #endif | |
53 | ||
54 | #endif /* _BABELTRACE_COMPAT_STRING_H */ |