1#include <endian.h> 2 3struct msghdr { 4 void *msg_name; 5 socklen_t msg_namelen; 6 struct iovec *msg_iov; 7#if __BYTE_ORDER == __BIG_ENDIAN 8 int __pad1, msg_iovlen; 9#else 10 int msg_iovlen, __pad1; 11#endif 12 void *msg_control; 13#if __BYTE_ORDER == __BIG_ENDIAN 14 int __pad2; 15 socklen_t msg_controllen; 16#else 17 socklen_t msg_controllen; 18 int __pad2; 19#endif 20 int msg_flags; 21}; 22 23struct cmsghdr { 24#if __BYTE_ORDER == __BIG_ENDIAN 25 int __pad1; 26 socklen_t cmsg_len; 27#else 28 socklen_t cmsg_len; 29 int __pad1; 30#endif 31 int cmsg_level; 32 int cmsg_type; 33}; 34 35#define SOCK_STREAM 2 36#define SOCK_DGRAM 1 37#define SOL_SOCKET 65535 38#define SO_DEBUG 1 39 40#define SO_REUSEADDR 0x0004 41#define SO_KEEPALIVE 0x0008 42#define SO_DONTROUTE 0x0010 43#define SO_BROADCAST 0x0020 44#define SO_LINGER 0x0080 45#define SO_OOBINLINE 0x0100 46#define SO_REUSEPORT 0x0200 47#define SO_SNDBUF 0x1001 48#define SO_RCVBUF 0x1002 49#define SO_SNDLOWAT 0x1003 50#define SO_RCVLOWAT 0x1004 51#define SO_RCVTIMEO 0x1006 52#define SO_SNDTIMEO 0x1005 53#define SO_ERROR 0x1007 54#define SO_TYPE 0x1008 55#define SO_ACCEPTCONN 0x1009 56#define SO_PROTOCOL 0x1028 57#define SO_DOMAIN 0x1029 58 59#define SO_NO_CHECK 11 60#define SO_PRIORITY 12 61#define SO_BSDCOMPAT 14 62#define SO_PASSCRED 17 63#define SO_PEERCRED 18 64#define SO_SNDBUFFORCE 31 65#define SO_RCVBUFFORCE 33 66 67#define SOCK_NONBLOCK 0200 68#define SOCK_CLOEXEC 02000000 69