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| author | Rich Felker <dalias@aerifal.cx> | 2019-10-31 23:09:48 -0400 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2019-11-02 18:30:56 -0400 |
| commit | a0252bc75b8546008c6b87e58344c4340683d5eb (patch) | |
| tree | e885f4e0f8fa4f1974b1d3da91411c123f613d85 /include/sys | |
| parent | 573a4d2d597ba15435ffdf0f2d8bea1058e7b795 (diff) | |
| download | musl-a0252bc75b8546008c6b87e58344c4340683d5eb.tar.gz musl-a0252bc75b8546008c6b87e58344c4340683d5eb.tar.xz musl-a0252bc75b8546008c6b87e58344c4340683d5eb.zip | |
move msghdr and cmsghdr out of bits/socket.h
these structures can now be defined generically in terms of endianness and long size. previously, the 32-bit archs all shared a common definition from the generic bits header, and each 64-bit arch had to repeat the 64-bit version, with endian conditionals if the arch had variants of each endianness. I would prefer getting rid of the preprocessor conditionals for padding and instead using unnamed bitfield members, like commit 9b2921bea1d5017832e1b45d1fd64220047a9802 did for struct timespec. however, at present sendmsg, recvmsg, and recvmmsg need access to the padding members by name to zero them. this could perhaps be cleaned up in the future.
Diffstat (limited to 'include/sys')
| -rw-r--r-- | include/sys/socket.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/include/sys/socket.h b/include/sys/socket.h index 6be699d9..4ea7be1e 100644 --- a/include/sys/socket.h +++ b/include/sys/socket.h @@ -19,6 +19,40 @@ extern "C" { #include <bits/socket.h> +struct msghdr { + void *msg_name; + socklen_t msg_namelen; + struct iovec *msg_iov; +#if __LONG_MAX > 0x7fffffff && __BYTE_ORDER == __BIG_ENDIAN + int __pad1; +#endif + int msg_iovlen; +#if __LONG_MAX > 0x7fffffff && __BYTE_ORDER == __LITTLE_ENDIAN + int __pad1; +#endif + void *msg_control; +#if __LONG_MAX > 0x7fffffff && __BYTE_ORDER == __BIG_ENDIAN + int __pad2; +#endif + socklen_t msg_controllen; +#if __LONG_MAX > 0x7fffffff && __BYTE_ORDER == __LITTLE_ENDIAN + int __pad2; +#endif + int msg_flags; +}; + +struct cmsghdr { +#if __LONG_MAX > 0x7fffffff && __BYTE_ORDER == __BIG_ENDIAN + int __pad1; +#endif + socklen_t cmsg_len; +#if __LONG_MAX > 0x7fffffff && __BYTE_ORDER == __LITTLE_ENDIAN + int __pad1; +#endif + int cmsg_level; + int cmsg_type; +}; + #ifdef _GNU_SOURCE struct ucred { pid_t pid; |