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logging: preserve errno in logging functions

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It would be nice that our logging functions are guaranteed to
preserve errno. We are currently not very consistent about handling
errno, let's improve on that.
This commit is contained in:
Thomas Haller 2016-12-11 22:33:19 +01:00
parent ccf766f659
commit 215c50922d
1 changed files with 5 additions and 0 deletions
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5
src/nm-logging.c
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@ -599,6 +599,7 @@ _nm_log_impl (const char *file,
va_list args;
char *msg;
GTimeVal tv;
int errno_saved;
if ((guint) level >= G_N_ELEMENTS (_nm_logging_enabled_state))
g_return_if_reached ();
@ -606,6 +607,8 @@ _nm_log_impl (const char *file,
if (!(_nm_logging_enabled_state[level] & domain))
return;
errno_saved = errno;
/* Make sure that %m maps to the specified error */
if (error != 0) {
if (error < 0)
@ -719,6 +722,8 @@ _nm_log_impl (const char *file,
}
g_free (msg);
errno = errno_saved;
}
/*****************************************************************************/