From 7ce05accf7d4ac889188e84aa5623245d2b4fde0 Mon Sep 17 00:00:00 2001
From: dtucker <dtucker>
Date: Sun, 20 May 2007 05:08:15 +0000
Subject: [PATCH]    - djm@cvs.openbsd.org 2007/05/17 07:50:31      [log.c]    
  save and restore errno when logging; ok deraadt@

---
 ChangeLog | 3 +++
 log.c     | 5 ++++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/ChangeLog b/ChangeLog
index 57055c96..1f9a101f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -12,6 +12,9 @@
    - dtucker@cvs.openbsd.org 2007/04/23 10:15:39
      [servconf.c]
      Remove debug() left over from development.  ok deraadt@
+   - djm@cvs.openbsd.org 2007/05/17 07:50:31
+     [log.c]
+     save and restore errno when logging; ok deraadt@
 
 20070509
  - (tim) [configure.ac] Bug #1287: Add missing test for ucred.h.
diff --git a/log.c b/log.c
index 7f886748..fae5b043 100644
--- a/log.c
+++ b/log.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: log.c,v 1.39 2006/08/18 09:13:25 deraadt Exp $ */
+/* $OpenBSD: log.c,v 1.40 2007/05/17 07:50:31 djm Exp $ */
 /*
  * Author: Tatu Ylonen <ylo@cs.hut.fi>
  * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@@ -44,6 +44,7 @@
 #include <string.h>
 #include <syslog.h>
 #include <unistd.h>
+#include <errno.h>
 #if defined(HAVE_STRNVIS) && defined(HAVE_VIS_H)
 # include <vis.h>
 #endif
@@ -313,6 +314,7 @@ do_log(LogLevel level, const char *fmt, va_list args)
 	char fmtbuf[MSGBUFSIZ];
 	char *txt = NULL;
 	int pri = LOG_INFO;
+	int saved_errno = errno;
 
 	if (level > log_level)
 		return;
@@ -373,4 +375,5 @@ do_log(LogLevel level, const char *fmt, va_list args)
 		closelog();
 #endif
 	}
+	errno = saved_errno;
 }
-- 
2.45.1