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[libpng15] Change info_ptr->unknown_chunks_num to type png_uint_32

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and test against INT_MAX instead of UINT_MAX in pngset.c
This commit is contained in:
Glenn Randers-Pehrson
2013-01-17 10:52:48 -06:00
parent 5b9fe98c5f
commit 77a817bfc2
4 changed files with 16 additions and 10 deletions
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2
pngset.c
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@@ -1040,7 +1040,7 @@ png_set_unknown_chunks(png_structp png_ptr,
return;
if (num_unknowns < 0 ||
num_unknowns >= UINT_MAX-info_ptr->unknown_chunks_num ||
num_unknowns >= INT_MAX-info_ptr->unknown_chunks_num ||
num_unknowns >= PNG_SIZE_MAX/png_sizeof(png_unknown_chunk)
- info_ptr->unknown_chunks_num)
np=NULL;