| 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 */ |