__SYS_SOCKET_H #include <sys/types.h> /* * Definitions related to sockets: types, address families, options. */ /* * Types */ #define SOCK_STREAM 1 /* stream socket */ #define SOCK_DGRAM 2 /* datagram socket */ #define SOCK_RAW 3 /* raw-protocol interface */ /* * Option flags per-socket. */ #define SO_DEBUG 0x0001 /* turn on debugging info recording */ #define SO_ACCEPTCONN 0x0002 /* socket has had listen() */ #define SO_REUSEADDR 0x0004 /* allow local address reuse */ /* allow bind to same port on different IPs (not supported)*/ /* not supported yet*/ #define SO_REUSEPORT 0x0008 /* allow local address and port reuse*/ #define SO_KEEPALIVE 0x0010 /* keep connections alive and send KEEPALIVE packets when idle for more than xx seconds*/ #define SO_DONTROUTE 0x0020 /* just use interface addresses*/ #define SO_BROADCAST 0x0040 /* permit sending of broadcast messages (not supported)*/ #define SO_USELOOPBACK 0x0080 /* bypass hardware when possible (not supported)*/ #define SO_LINGER 0x0100 /* linger on close if data present (not supported)*/ #define SO_OOBINLINE 0x0200 /* leave received OOB data in line (not supported)*/ #ifndef _POSIX_SOURCE # define SO_DONTLINGER (int)(~SO_LINGER) /* ~SO_LINGER */ #endif /* POSIX SOURCE */ /* additional options, not kept in so_options */ #ifndef _POSIX