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log: save errno on strerror_r()

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Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
This commit is contained in:
Christian Brauner
2018-09-03 14:19:06 +02:00
parent b7051eb7e6
commit a285b30814
1 changed files with 4 additions and 0 deletions
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4
src/lxc/log.h
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@@ -344,7 +344,9 @@ ATTR_UNUSED static inline void LXC_##LEVEL(struct lxc_log_locinfo* locinfo, \
char errno_buf[MAXPATHLEN / 2] = {"Failed to get errno string"}; \
char *ptr = NULL; \
{ \
int saved_errno = errno; \
ptr = strerror_r(errno, errno_buf, sizeof(errno_buf)); \
errno = saved_errno; \
if (!ptr) \
ptr = errno_buf; \
}
@@ -353,7 +355,9 @@ ATTR_UNUSED static inline void LXC_##LEVEL(struct lxc_log_locinfo* locinfo, \
char errno_buf[MAXPATHLEN / 2] = {"Failed to get errno string"}; \
char *ptr = errno_buf; \
{ \
int saved_errno = errno; \
(void)strerror_r(errno, errno_buf, sizeof(errno_buf)); \
errno = saved_errno; \
}
#endif
#elif ENFORCE_THREAD_SAFETY