diff options
Diffstat (limited to 'fix_ignored_fread_png_value.patch')
| -rw-r--r-- | fix_ignored_fread_png_value.patch | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/fix_ignored_fread_png_value.patch b/fix_ignored_fread_png_value.patch new file mode 100644 index 000000000000..80d10d761ce9 --- /dev/null +++ b/fix_ignored_fread_png_value.patch @@ -0,0 +1,19 @@ +Nope, we do not ignore the fread result, we actually check it like it should +have been done ... +--- +diff --no-dereference -urpN a/source/paint/detail/image_png.hpp b/source/paint/detail/image_png.hpp +--- a/source/paint/detail/image_png.hpp 2020-08-19 18:36:32.888420665 +0200 ++++ b/source/paint/detail/image_png.hpp 2020-08-19 18:39:25.116094825 +0200 +@@ -133,10 +133,10 @@ namespace nana + bool is_opened = false; + + png_byte png_sig[8]; +- ::fread(png_sig, 1, 8, fp); ++ size_t result = ::fread(png_sig, 1, 8, fp); + + //Test whether the file is a png. +- if(0 == png_sig_cmp(png_sig, 0, 8)) ++ if((8 == result) && (0 == png_sig_cmp(png_sig, 0, 8))) + { + png_structp png_ptr = ::png_create_read_struct(PNG_LIBPNG_VER_STRING, 0, 0, 0); + if(png_ptr) |