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[master] Revised png_check_IHDR() again

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to check info_ptr members instead of the contents of the returned parameters.
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Glenn Randers-Pehrson
2009-09-30 23:10:28 -05:00
parent 64ca95e375
commit 5d7fe7a718
6 changed files with 62 additions and 56 deletions
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12
png.c
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@@ -1,7 +1,7 @@
/* png.c - location for general purpose libpng functions
*
* Last changed in libpng 1.2.41 [September 30, 2009]
* Last changed in libpng 1.2.41 [October 1, 2009]
* Copyright (c) 1998-2009 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.)
@@ -705,7 +705,7 @@ png_charp PNGAPI
png_get_copyright(png_structp png_ptr)
{
png_ptr = png_ptr; /* Silence compiler warning about unused png_ptr */
return ((png_charp) "\n libpng version 1.2.41beta03 - September 30, 2009\n\
return ((png_charp) "\n libpng version 1.2.41beta03 - October 1, 2009\n\
Copyright (c) 1998-2009 Glenn Randers-Pehrson\n\
Copyright (c) 1996-1997 Andreas Dilger\n\
Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.\n");
@@ -953,14 +953,6 @@ png_check_IHDR(png_structp png_ptr,
#endif
{
png_warning(png_ptr, "Image width exceeds user limit in IHDR");
if ((width >> 16) == height)
{
/* This is likely to be caused by passing consecutive addresses
* of 16-bit width and height variables to png_get_IHDR(), which
* overflowed when we tried to fill them with 31-bit data.
*/
png_warning(png_ptr, "High bytes of width == low bytes of height");
}
error = 1;
}