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Fix bug when level 0 used with Z_HUFFMAN or Z_RLE.

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94575859cf
This commit is contained in:
Alex Kocharin 2022-06-09 16:55:44 +03:00
parent 9709958d84
commit 1154023108
1 changed files with 4 additions and 3 deletions
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7
lib/zlib/deflate.js
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@ -1666,9 +1666,10 @@ const deflate = (strm, flush) => {
*/ */
if (strm.avail_in !== 0 || s.lookahead !== 0 || if (strm.avail_in !== 0 || s.lookahead !== 0 ||
(flush !== Z_NO_FLUSH && s.status !== FINISH_STATE)) { (flush !== Z_NO_FLUSH && s.status !== FINISH_STATE)) {
let bstate = (s.strategy === Z_HUFFMAN_ONLY) ? deflate_huff(s, flush) : let bstate = s.level === 0 ? deflate_stored(s, flush) :
(s.strategy === Z_RLE ? deflate_rle(s, flush) : s.strategy === Z_HUFFMAN_ONLY ? deflate_huff(s, flush) :
configuration_table[s.level].func(s, flush)); s.strategy === Z_RLE ? deflate_rle(s, flush) :
configuration_table[s.level].func(s, flush);
if (bstate === BS_FINISH_STARTED || bstate === BS_FINISH_DONE) { if (bstate === BS_FINISH_STARTED || bstate === BS_FINISH_DONE) {
s.status = FINISH_STATE; s.status = FINISH_STATE;