From 681930474072737451ca95ab5682c7ad69e95060 Mon Sep 17 00:00:00 2001
From: Andrew Tridgell <tridge@samba.org>
Date: Mon, 11 Mar 2002 18:54:51 +0000
Subject: [PATCH] a quick fix for a segmentation fault in zlib I am getting
 whenever I try to upload a file from rsync 2.5.2 to rsync 2.5.3

---
 zlib/zutil.c | 2 +-
 zlib/zutil.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/zlib/zutil.c b/zlib/zutil.c
index 7fb0327b..2aafdab3 100644
--- a/zlib/zutil.c
+++ b/zlib/zutil.c
@@ -213,7 +213,7 @@ void  zcfree (opaque, ptr)
     voidpf opaque;
     voidpf ptr;
 {
-    free(ptr);
+    if (ptr) free(ptr);
     if (opaque) return; /* make compiler happy */
 }
 
diff --git a/zlib/zutil.h b/zlib/zutil.h
index f1d583e4..fbf2a980 100644
--- a/zlib/zutil.h
+++ b/zlib/zutil.h
@@ -217,7 +217,7 @@ void   zcfree  OF((voidpf opaque, voidpf ptr));
 
 #define ZALLOC(strm, items, size) \
            (*((strm)->zalloc))((strm)->opaque, (items), (size))
-#define ZFREE(strm, addr)  (*((strm)->zfree))((strm)->opaque, (voidpf)(addr))
+#define ZFREE(strm, addr)  ((*((strm)->zfree))((strm)->opaque, (voidpf)(addr)),(addr)=NULL)
 #define TRY_FREE(s, p) {if (p) ZFREE(s, p);}
 
 #endif /* _Z_UTIL_H */
-- 
2.34.1