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062d17ccab
glibc and linux kernel use size_t for some field lengths while POSIX and musl use int. This bug would have caused breakage the first time someone tried to call sendmsg on a 64-bit big endian system when linking musl libc. my opinion: * msghdr.iovlen: kernel and glibc have it right. This field should definitely be size_t. With int, the padding bytes are wasted for no reason. * msghdr.controllen: POSIX and musl have it right. 4 bytes is plenty for the length, and it saves 4 bytes next to flags. * cmsghdr.len: POSIX and musl have it right. 4 bytes is plenty for the length, and it saves 4 bytes since the other fields are also 32-bits each. |
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| linux.zig | ||
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| windows.zig | ||