fixed problem which could result in strdup(NULL)

CVS patchset: 252 CVS date: 1996/01/30 04:12:58
1996-01-30 04:12:58 +00:00 · 1996-01-30 04:12:58 +00:00 · 5764e29cdc
parent 881145f547
commit 5764e29cdc
1 changed files with 5 additions and 1 deletions
--- a/lib/var.c
+++ b/lib/var.c
@ -21,5 +21,9 @@ void setVar(int var, char *val)
 	return ;		/* XXX should we go harey carey here? */
   
    if (values[var]) free(values[var]);
-    values[var] = strdup(val);
+
+    if (val)
+	values[var] = strdup(val);
+    else
+	values[var] = NULL;
 }