blob: 2d7ff8d679678ea8d6eb1a7dc3981b5c4f0eaa27 (
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--- trees.c
+++ trees.c
@@ -870,7 +870,7 @@
bi_windup(s); /* align on byte boundary */
put_short(s, (ush)stored_len);
put_short(s, (ush)~stored_len);
- zmemcpy(s->pending_buf + s->pending, (Bytef *)buf, stored_len);
+ if (stored_len != 0) zmemcpy(s->pending_buf + s->pending, (Bytef *)buf, stored_len);
s->pending += stored_len;
#ifdef ZLIB_DEBUG
s->compressed_len = (s->compressed_len + 3 + 7) & (ulg)~7L;
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