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From 9bb775fc8cbde98fca150992efe227937b9278ff Mon Sep 17 00:00:00 2001
From: Glenn Randers-Pehrson <glennrp at users.sourceforge.net>
Date: Sat, 13 Apr 2013 14:19:25 -0500
Subject: [PATCH 1/5] [libpng16] Corrected length written to uncompressed iTXt
chunks (Samuli Suominen).
---
ANNOUNCE | 1 +
CHANGES | 1 +
pngwutil.c | 6 +++---
3 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/pngwutil.c b/pngwutil.c
index 8c49cfd..8f66937 100644
--- a/pngwutil.c
+++ b/pngwutil.c
@@ -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);
--
1.8.1.5
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