Change default error handling in libselinux matchpathcon to use syslog instead of stderr.

[Daniel J Walsh <dwalsh@redhat.com>]

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Current behavior causes problems with network applications.

https://bugzilla.redhat.com/show_bug.cgi?id=273081

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diff --exclude-from=exclude -N -u -r nsalibselinux/src/matchpathcon.c libselinux-2.0.33/src/matchpathcon.c
--- nsalibselinux/src/matchpathcon.c	2007-08-10 11:58:34.000000000 -0400
+++ libselinux-2.0.33/src/matchpathcon.c	2007-09-18 11:28:07.000000000 -0400
@@ -2,6 +2,7 @@
 #include <string.h>
 #include <errno.h>
 #include <stdio.h>
+#include <syslog.h>
 #include "selinux_internal.h"
 #include "label_internal.h"
 #include "callbacks.h"
@@ -55,10 +56,12 @@
 #endif
     default_printf(const char *fmt, ...)
 {
+	char buf[BUFSIZ];
 	va_list ap;
 	va_start(ap, fmt);
-	vfprintf(stderr, fmt, ap);
+	vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
 	va_end(ap);
+	syslog(LOG_ERR, buf, strlen(buf));
 }
 
 void

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