From: Lennart Poettering <lennart@poettering.net>
Date: Wed, 27 Jan 2010 21:39:29 +0000 (+0100)
Subject: make sure the log functions don't modify errno
X-Git-Tag: v1~782
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=commitdiff_plain;h=c9b97d2a838899d00004fbfbd3f8c2e6932c89a0

make sure the log functions don't modify errno
---

diff --git a/log.c b/log.c
index 8d2921393..ec3cab5b9 100644
--- a/log.c
+++ b/log.c
@@ -6,6 +6,7 @@
 
 #include <stdarg.h>
 #include <stdio.h>
+#include <errno.h>
 
 #include "log.h"
 
@@ -18,6 +19,7 @@ void log_meta(
 
         const char *prefix, *suffix;
         va_list ap;
+        int saved_errno = errno;
 
         if (LOG_PRI(level) <= LOG_ERR) {
                 prefix = "\x1B[1;31m";
@@ -35,4 +37,5 @@ void log_meta(
 
         va_end(ap);
 
+        errno = saved_errno;
 }