projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 59703a43 C |
1 | /* socket.h 6.1 83/07/29 */ |
| 2 | ||
| 3 | /* | |
| 4 | * Definitions related to sockets: types, address families, options. | |
| 5 | */ | |
| 6 | ||
| 7 | /* | |
| 8 | * Types | |
| 9 | */ | |
| 10 | #define SOCK_STREAM 1 /* stream socket */ | |
| 11 | #define SOCK_DGRAM 2 /* datagram socket */ | |
| 12 | #define SOCK_RAW 3 /* raw-protocol interface */ | |
| 13 | #define SOCK_RDM 4 /* reliably-delivered message */ | |
| 14 | #define SOCK_SEQPACKET 5 /* sequenced packet stream */ | |
| 15 | ||
| 16 | /* | |
| 17 | * Option flags per-socket. | |
| 18 | */ | |
| 19 | #define SO_DEBUG 0x01 /* turn on debugging info recording */ | |
| 20 | #define SO_ACCEPTCONN 0x02 /* socket has had listen() */ | |
| 21 | #define SO_REUSEADDR 0x04 /* allow local address reuse */ | |
| 22 | #define SO_KEEPALIVE 0x08 /* keep connections alive */ | |
| 23 | #define SO_DONTROUTE 0x10 /* just use interface addresses */ | |
| 24 | /* 0x20 was SO_NEWFDONCONN */ | |
| 25 | #define SO_USELOOPBACK 0x40 /* bypass hardware when possible */ | |
| 26 | #define SO_LINGER 0x80 /* linger on close if data present */ | |
| 27 | #define SO_DONTLINGER (~SO_LINGER) /* ~SO_LINGER */ | |
| 28 | ||
| 29 | /* | |
| 30 | * Address families. | |
| 31 | */ | |
| 32 | #define AF_UNSPEC 0 /* unspecified */ | |
| 33 | #define AF_UNIX 1 /* local to host (pipes, portals) */ | |
| 34 | #define AF_INET 2 /* internetwork: UDP, TCP, etc. */ | |
| 35 | #define AF_IMPLINK 3 /* arpanet imp addresses */ | |
| 36 | #define AF_PUP 4 /* pup protocols: e.g. BSP */ | |
| 37 | #define AF_CHAOS 5 /* mit CHAOS protocols */ | |
| 38 | #define AF_NS 6 /* XEROX NS protocols */ | |
| 39 | #define AF_NBS 7 /* nbs protocols */ | |
| 40 | #define AF_ECMA 8 /* european computer manufacturers */ | |
| 41 | #define AF_DATAKIT 9 /* datakit protocols */ | |
| 42 | #define AF_CCITT 10 /* CCITT protocols, X.25 etc */ | |
| 43 | #define AF_SNA 11 /* IBM SNA */ | |
| 44 | ||
| 45 | #define AF_MAX 12 | |
| 46 | ||
| 47 | /* | |
| 48 | * Structure used by kernel to store most | |
| 49 | * addresses. | |
| 50 | */ | |
| 51 | struct sockaddr { | |
| 52 | u_short sa_family; /* address family */ | |
| 53 | char sa_data[14]; /* up to 14 bytes of direct address */ | |
| 54 | }; | |
| 55 | ||
| 56 | /* | |
| 57 | * Structure used by kernel to pass protocol | |
| 58 | * information in raw sockets. | |
| 59 | */ | |
| 60 | struct sockproto { | |
| 61 | u_short sp_family; /* address family */ | |
| 62 | u_short sp_protocol; /* protocol */ | |
| 63 | }; | |
| 64 | ||
| 65 | /* | |
| 66 | * Protocol families, same as address families for now. | |
| 67 | */ | |
| 68 | #define PF_UNSPEC AF_UNSPEC | |
| 69 | #define PF_UNIX AF_UNIX | |
| 70 | #define PF_INET AF_INET | |
| 71 | #define PF_IMPLINK AF_IMPLINK | |
| 72 | #define PF_PUP AF_PUP | |
| 73 | #define PF_CHAOS AF_CHAOS | |
| 74 | #define PF_NS AF_NS | |
| 75 | #define PF_NBS AF_NBS | |
| 76 | #define PF_ECMA AF_ECMA | |
| 77 | #define PF_DATAKIT AF_DATAKIT | |
| 78 | #define PF_CCITT AF_CCITT | |
| 79 | #define PF_SNA AF_SNA | |
| 80 | ||
| 81 | #define PF_MAX 12 | |
| 82 | ||
| 83 | /* | |
| 84 | * Level number for (get/set)sockopt() to apply to socket itself. | |
| 85 | */ | |
| 86 | #define SOL_SOCKET 0xffff /* options for socket level */ | |
| 87 | ||
| 88 | /* | |
| 89 | * Maximum queue length specifiable by listen. | |
| 90 | */ | |
| 91 | #define SOMAXCONN 5 | |
| 92 | ||
| 93 | /* | |
| 94 | * Message header for recvmsg and sendmsg calls. | |
| 95 | */ | |
| 96 | struct msghdr { | |
| 97 | caddr_t msg_name; /* optional address */ | |
| 98 | int msg_namelen; /* size of address */ | |
| 99 | struct iovec *msg_iov; /* scatter/gather array */ | |
| 100 | int msg_iovlen; /* # elements in msg_iov */ | |
| 101 | caddr_t msg_accrights; /* access rights sent/received */ | |
| 102 | int msg_accrightslen; | |
| 103 | }; | |
| 104 | ||
| 105 | #define MSG_OOB 0x1 /* process out-of-band data */ | |
| 106 | #define MSG_PEEK 0x2 /* peek at incoming message */ | |
| 107 | #define MSG_DONTROUTE 0x4 /* send without using routing tables */ | |
| 108 | ||
| 109 | #define MSG_MAXIOVLEN 16 |