zlib/zlib-1.2.5-gzopen-null-check.patch

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Index: zlib-1.2.5_git201105121450/gzlib.c
===================================================================
--- zlib-1.2.5_git201105121450.orig/gzlib.c 2011-05-12 16:50:18.000000000 +0200
+++ zlib-1.2.5_git201105121450/gzlib.c 2011-05-27 10:45:36.467678080 +0200
@@ -91,6 +91,9 @@
{
gz_statep state;
+ if (!path || !mode)
+ return NULL;
+
/* allocate gzFile structure to return */
state = malloc(sizeof(gz_state));
if (state == NULL)