From 608e0473d342f05648866876dcea16c4046ce575 Mon Sep 17 00:00:00 2001
From: rlar <rlar>
Date: Sat, 28 Jul 2012 19:53:55 +0200
Subject: [PATCH] copy(), allow NULL argument

---
 src/misc/string.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/misc/string.c b/src/misc/string.c
index c2ead4e8c..cef2acc75 100644
--- a/src/misc/string.c
+++ b/src/misc/string.c
@@ -28,6 +28,9 @@ copy(const char *str)
 {
     char *p;
     
+    if (!str)
+        return NULL;
+
     if ((p = TMALLOC(char, strlen(str) + 1)) != NULL)
 	    (void) strcpy(p, str);
     return(p);