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Imported from pngcrush-1.6.4.tar

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This commit is contained in:
Glenn Randers-Pehrson
2006-06-08 12:03:19 -05:00
parent 0f03cc5fe4
commit ea25b6b078
20 changed files with 106 additions and 75 deletions
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9
pngpread.c
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@@ -214,6 +214,10 @@ png_push_read_chunk(png_structp png_ptr, png_infop info_ptr)
png_ptr->mode |= PNG_HAVE_CHUNK_HEADER;
}
if (!png_memcmp(png_ptr->chunk_name, (png_bytep)png_IDAT, 4))
if(png_ptr->mode & PNG_AFTER_IDAT)
png_ptr->mode |= PNG_HAVE_CHUNK_AFTER_IDAT;
if (!png_memcmp(png_ptr->chunk_name, png_IHDR, 4))
{
if (png_ptr->push_length + 4 > png_ptr->buffer_size)
@@ -281,8 +285,9 @@ png_push_read_chunk(png_structp png_ptr, png_infop info_ptr)
if (png_ptr->mode & PNG_HAVE_IDAT)
{
if (png_ptr->push_length == 0)
return;
if (!(png_ptr->mode & PNG_HAVE_CHUNK_AFTER_IDAT))
if (png_ptr->push_length == 0)
return;
if (png_ptr->mode & PNG_AFTER_IDAT)
png_error(png_ptr, "Too many IDAT's found");