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authorMark Adler <fork@madler.net>2022-10-06 16:33:42 -0700
committerMark Adler <fork@madler.net>2022-10-06 20:43:18 -0700
commita9e14e85415eb326000f352bce3fcb04a125406d (patch)
tree68f7359d6a55e5a925610d4138dbc24e72a3af64 /deflate.c
parent138c93cffb76f5c24e4ae6e81e6210428856f825 (diff)
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Avoid undefined negation behavior if windowBits is INT_MIN.
Diffstat (limited to 'deflate.c')
-rw-r--r--deflate.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/deflate.c b/deflate.c
index 0345980..a578b1a 100644
--- a/deflate.c
+++ b/deflate.c
@@ -279,6 +279,8 @@ int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy,
279 279
280 if (windowBits < 0) { /* suppress zlib wrapper */ 280 if (windowBits < 0) { /* suppress zlib wrapper */
281 wrap = 0; 281 wrap = 0;
282 if (windowBits < -15)
283 return Z_STREAM_ERROR;
282 windowBits = -windowBits; 284 windowBits = -windowBits;
283 } 285 }
284#ifdef GZIP 286#ifdef GZIP