[PATCH 1/5] util/zlib-extra.c: don't pass NULL to gzerror.

[David Bremner]

Although (as of 1.2.11) zlib checks this parameter before writing to
it, the docs don't promise to keep doing so, so be safe.
---
 util/zlib-extra.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/util/zlib-extra.c b/util/zlib-extra.c
index f691cccf..e17a9731 100644
--- a/util/zlib-extra.c
+++ b/util/zlib-extra.c
@@ -79,8 +79,10 @@ gz_getline (void *talloc_ctx, char **bufptr, ssize_t *bytes_read, gzFile stream)
 const char *
 gz_error_string (util_status_t status, gzFile file)
 {
+    int dummy;
+
     if (status == UTIL_GZERROR)
-	return gzerror (file, NULL);
+	return gzerror (file, &dummy);
     else
 	return util_error_string (status);
 }
-- 
2.25.1