Fixed Z_INSERT_ONLY support in deflate_stored().

diff --git a/zlib/deflate.c b/zlib/deflate.c
index 20209df..07814c7 100644 (file)
--- a/zlib/deflate.c
+++ b/zlib/deflate.c
@@ -1092,11 +1092,6 @@ local block_state deflate_stored(s, flush)
         max_block_size = s->pending_buf_size - 5;
     }
 
-    if (flush == Z_INSERT_ONLY) {
-       s->block_start = s->strstart;
-       return need_more;
-    }
-
     /* Copy as much as possible from input to output: */
     for (;;) {
         /* Fill the window as much as possible: */
@@ -1115,6 +1110,11 @@ local block_state deflate_stored(s, flush)
        s->strstart += s->lookahead;
        s->lookahead = 0;
 
+       if (flush == Z_INSERT_ONLY) {
+           s->block_start = s->strstart;
+           continue;
+       }
+
        /* Emit a stored block if pending_buf will be full: */
        max_start = s->block_start + max_block_size;
         if (s->strstart == 0 || (ulg)s->strstart >= max_start) {
@@ -1130,6 +1130,11 @@ local block_state deflate_stored(s, flush)
             FLUSH_BLOCK(s, 0);
        }
     }
+    if (flush == Z_INSERT_ONLY) {
+       s->block_start = s->strstart;
+       return need_more;
+    }
+
     FLUSH_BLOCK(s, flush == Z_FINISH);
     return flush == Z_FINISH ? finish_done : block_done;
 }