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#include <endian.h>
struct msghdr {
void *msg_name;
socklen_t msg_namelen;
struct iovec *msg_iov;
#if __BYTE_ORDER == __BIG_ENDIAN
int __pad1, msg_iovlen;
#else
int msg_iovlen, __pad1;
#endif
void *msg_control;
#if __BYTE_ORDER == __BIG_ENDIAN
int __pad2;
socklen_t msg_controllen;
#else
socklen_t msg_controllen;
int __pad2;
#endif
int msg_flags;
};
struct cmsghdr {
#if __BYTE_ORDER == __BIG_ENDIAN
int __pad1;
socklen_t cmsg_len;
#else
socklen_t cmsg_len;
int __pad1;
#endif
int cmsg_level;
int cmsg_type;
};
#define SOCK_STREAM 2
#define SOCK_DGRAM 1
#define SOL_SOCKET 65535
#define SO_DEBUG 1
#define SO_REUSEADDR 0x0004
#define SO_KEEPALIVE 0x0008
#define SO_DONTROUTE 0x0010
#define SO_BROADCAST 0x0020
#define SO_LINGER 0x0080
#define SO_OOBINLINE 0x0100
#define SO_REUSEPORT 0x0200
#define SO_SNDBUF 0x1001
#define SO_RCVBUF 0x1002
#define SO_SNDLOWAT 0x1003
#define SO_RCVLOWAT 0x1004
#define SO_RCVTIMEO 0x1006
#define SO_SNDTIMEO 0x1005
#define SO_ERROR 0x1007
#define SO_TYPE 0x1008
#define SO_ACCEPTCONN 0x1009
#define SO_PROTOCOL 0x1028
#define SO_DOMAIN 0x1029
#define SO_NO_CHECK 11
#define SO_PRIORITY 12
#define SO_BSDCOMPAT 14
#define SO_PASSCRED 17
#define SO_PEERCRED 18
#define SO_SNDBUFFORCE 31
#define SO_RCVBUFFORCE 33
#define SOCK_NONBLOCK 0200
#define SOCK_CLOEXEC 02000000
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