diff options
| author | Sean McGovern <[email protected]> | 2016-07-10 17:22:45 -0400 |
|---|---|---|
| committer | Sean McGovern <[email protected]> | 2016-07-11 23:05:26 -0400 |
| commit | b8bf66f0b15842ce240a3320ca4d23aaf8165bf0 (patch) | |
| tree | 821b07cb5f004b89cc8614c7f9073bf69a6b35dd | |
| parent | e44e48382e1a97815f005e3efd6c36c06c773c40 (diff) | |
libhb: add an implementation of strerror_r()
| -rw-r--r-- | libhb/compat.c | 37 | ||||
| -rw-r--r-- | libhb/compat.h | 10 |
2 files changed, 47 insertions, 0 deletions
diff --git a/libhb/compat.c b/libhb/compat.c index 1ab3893e8..449edff03 100644 --- a/libhb/compat.c +++ b/libhb/compat.c @@ -40,3 +40,40 @@ char *strtok_r(char *s, const char *delim, char **save_ptr) return token; } #endif // HB_NEED_STRTOK_R + +#ifndef HAS_STRERROR_R +#ifndef _GNU_SOURCE +#include <sys/types.h> +#include <errno.h> +#include <string.h> + +#define ERRSTR_LEN 20 + +int strerror_r(int errnum, char *strerrbuf, size_t buflen) +{ + int ret = 0; + char errstr[ERRSTR_LEN]; + + if (strerrbuf == NULL || buflen == 0) + { + ret = ERANGE; + goto done; + } + + if(snprintf(errstr, ERRSTR_LEN - 1, "unknown error %d", errnum) < 0) + { + ret = EINVAL; + goto done; + } + + if (snprintf(strerrbuf, buflen, errstr) < 0) + { + ret = EINVAL; + goto done; + } + +done: + return ret; +} +#endif // _GNU_SOURCE +#endif // HAS_STRERROR_R diff --git a/libhb/compat.h b/libhb/compat.h index 8c4ad58bf..618941e9e 100644 --- a/libhb/compat.h +++ b/libhb/compat.h @@ -25,4 +25,14 @@ char *strtok_r(char *s, const char *delim, char **save_ptr); #endif // HB_NEED_STRTOK_R +#ifndef HAS_STRERROR_R +#ifndef _GNU_SOURCE +#include <sys/types.h> +/* + * POSIX definition of strerror_r() -- see http://pubs.opengroup.org/onlinepubs/9699919799/functions/strerror.html + */ +int strerror_r(int errnum, char *strerrbuf, size_t buflen); +#endif // _GNU_SOURCE +#endif // HAVE_STRERROR_R + #endif // HB_COMPAT_H |