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[libpng16] Corrected length written to uncompressed iTXt chunks (Samuli Suominen).

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Glenn Randers-Pehrson 2013-04-13 14:19:25 -05:00
parent a8715cabd1
commit 9bb775fc8c
3 changed files with 5 additions and 3 deletions
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1
ANNOUNCE
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@ -36,6 +36,7 @@ Version 1.6.2beta01 [April 13, 2013]
transform_info is called.
Corrected a misplaced closing bracket in contrib/libtests/pngvalid.c
(Flavio Medeiros).
Corrected length written to uncompressed iTXt chunks (Samuli Suominen).
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1
CHANGES
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@ -4484,6 +4484,7 @@ Version 1.6.2beta01 [April 13, 2013]
transform_info is called.
Corrected a misplaced closing bracket in contrib/libtests/pngvalid.c
(Flavio Medeiros).
Corrected length written to uncompressed iTXt chunks (Samuli Suominen).
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit

6
pngwutil.c
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@ -1,7 +1,7 @@
/* pngwutil.c - utilities to write a PNG file
*
* Last changed in libpng 1.6.0 [February 14, 2013]
* Last changed in libpng 1.6.2 [(PENDING RELEASE)]
* Copyright (c) 1998-2013 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@ -1738,16 +1738,16 @@ png_write_iTXt(png_structrp png_ptr, int compression, png_const_charp key,
{
if (png_text_compress(png_ptr, png_iTXt, &comp, prefix_len) != Z_OK)
png_error(png_ptr, png_ptr->zstream.msg);
png_write_chunk_header(png_ptr, png_iTXt, comp.output_len + prefix_len);
}
else
{
if (comp.input_len > PNG_UINT_31_MAX-prefix_len)
png_error(png_ptr, "iTXt: uncompressed text too long");
png_write_chunk_header(png_ptr, png_iTXt, strlen(text) + prefix_len);
}
png_write_chunk_header(png_ptr, png_iTXt, comp.output_len + prefix_len);
png_write_chunk_data(png_ptr, new_key, key_len);
png_write_chunk_data(png_ptr, (png_const_bytep)lang, lang_len);