kc3-lang/freetype/src/gzip

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• Hash : 06e21ffe
  Author :
  Date : 2021-05-18T14:49:50
  

  [gzip] Use exact type for `ft_gzip_alloc` and `ft_gzip_free`. While a function pointer may be cast to another function pointer type, it is required to cast the function pointer back to the original function pointer type before calling it. If a parameter is a pointer the exact pointer type is required. Using a pointer to a different underlying type is technically undefined behavior. The wrapper functions `ft_gzip_alloc` and `ft_gzip_free` took `FT_Memory` (a `FT_MemoryRec_*`) instead of `voidpf` (`void*`), so when gzip calls these callbacks through `alloc_func` or `free_func` it invokes undefined behavior. On most platforms this works out as expected, but newer undefined behavior detectors and targets like wasm can detect this and will produce an error. * src/gzip/ftgzip.c (ft_gzip_alloc, ft_gzip_free): Update signatures to exactly match `alloc_func` and `free_func`, respectively. Internally, cast the `void*` opaque pointer to `FT_Memory`.

• Files

• adler32.c
• ftgzip.c
• ftzconf.h
• infblock.c
• infblock.h
• infcodes.c
• infcodes.h
• inffixed.h
• inflate.c
• inftrees.c
• inftrees.h
• infutil.c
• infutil.h
• rules.mk
• zlib.h
• zutil.c
• zutil.h

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• Git HTTP	https://git.kmx.io/kc3-lang/freetype.git
  Git SSH	git@git.kmx.io:kc3-lang/freetype.git
  Public access ?	public
  Description	https://gitlab.freedesktop.org/freetype/freetype
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