From f85b221da6b165f966a6048eb4d1c059f7b1be4b Mon Sep 17 00:00:00 2001
From: Kevin Shanahan <kmshanah@disenchant.net>
Date: Mon, 17 Dec 2012 13:02:41 +1030
Subject: [PATCH] common: fix varargs use in log{,v}print

Signed-off-by: Kevin Shanahan <kmshanah@disenchant.net>
---
 common/log.c | 19 ++++++++++++++-----
 1 file changed, 14 insertions(+), 5 deletions(-)

diff --git a/common/log.c b/common/log.c
index 727884cb..27047f3e 100644
--- a/common/log.c
+++ b/common/log.c
@@ -21,9 +21,11 @@
  * common/log.c
  */
 
+#include <stdarg.h>
+#include <stdio.h>
+
 #include <common/log.h>
 #include <common/cmdlib.h>
-#include <stdio.h>
 
 static FILE *logfile;
 static qboolean log_ok;
@@ -48,20 +50,27 @@ logprint(const char *fmt, ...)
 {
     va_list args;
 
-    va_start(args, fmt);
-    vprintf(fmt, args);
     if (log_ok) {
+	va_start(args, fmt);
 	vfprintf(logfile, fmt, args);
+	va_end(args);
 	fflush(logfile);
     }
+    va_start(args, fmt);
+    vprintf(fmt, args);
+    va_end(args);
 }
 
 void
 logvprint(const char *fmt, va_list args)
 {
-    vprintf(fmt, args);
+    va_list log_args;
+
     if (log_ok) {
-	vfprintf(logfile, fmt, args);
+	va_copy(log_args, args);
+	vfprintf(logfile, fmt, log_args);
+	va_end(log_args);
 	fflush(logfile);
     }
+    vprintf(fmt, args);
 }