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[libpng16] Added code to validate the windowBits value passed to deflateInit2().

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If the call to deflateInit2() is wrong a png_warning will be issued
(in fact this is harmless, but the PNG data produced may be sub-optimal).
This commit is contained in:
John Bowler
2012-03-05 21:26:57 -06:00
committed by Glenn Randers-Pehrson
parent d072048925
commit 6225b0e61e
5 changed files with 39 additions and 21 deletions
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@@ -4033,6 +4033,9 @@ Version 1.6.0beta16 [March 6, 2012]
changed parameters on deflate rather than always calling
deflatedEnd/deflateInit.
Validate the zTXt strings in pngvalid.
Added code to validate the windowBits value passed to deflateInit2().
If the call to deflateInit2() is wrong a png_warning will be issued
(in fact this is harmless, but the PNG data produced may be sub-optimal).
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