From 57f32c0b9031c771d20bdb51d5947e4314b1bedc Mon Sep 17 00:00:00 2001
From: calvin2021y <85545400+calvin2021y@users.noreply.github.com>
Date: Fri, 6 Sep 2024 19:44:19 +0800
Subject: [PATCH] fix zero size zchunk

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

diff --git a/src/zchunk.c b/src/zchunk.c
index e53fb258a..c5111d43f 100644
--- a/src/zchunk.c
+++ b/src/zchunk.c
@@ -62,6 +62,8 @@ zchunk_new (const void *data, size_t size)
         if (data) {
             self->size = size;
             memcpy (self->data, data, self->size);
+        } else {
+         	if( size > 0 ) self->data[0] = 0;
         }
     }
     return self;
@@ -181,6 +183,7 @@ zchunk_data (zchunk_t *self)
 {
     assert (self);
     assert (zchunk_is (self));
+    if( self->size < 1 ) return NULL;
     return self->data;
 }