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1.1 root 1: /*
2: * Copyright (c) 1982, 1985, 1986 Regents of the University of California.
3: * All rights reserved.
4: *
5: * Redistribution and use in source and binary forms are permitted
6: * provided that the above copyright notice and this paragraph are
7: * duplicated in all such forms and that any documentation,
8: * advertising materials, and other materials related to such
9: * distribution and use acknowledge that the software was developed
10: * by the University of California, Berkeley. The name of the
11: * University may not be used to endorse or promote products derived
12: * from this software without specific prior written permission.
13: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
14: * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
15: * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
16: *
17: * @(#)socket.h 7.3 (Berkeley) 6/27/88
18: */
19:
20: /*
21: * Definitions related to sockets: types, address families, options.
22: */
23:
24: /*
25: * Types
26: */
27: #define SOCK_STREAM 1 /* stream socket */
28: #define SOCK_DGRAM 2 /* datagram socket */
29: #define SOCK_RAW 3 /* raw-protocol interface */
30: #define SOCK_RDM 4 /* reliably-delivered message */
31: #define SOCK_SEQPACKET 5 /* sequenced packet stream */
32:
33: /*
34: * Option flags per-socket.
35: */
36: #define SO_DEBUG 0x0001 /* turn on debugging info recording */
37: #define SO_ACCEPTCONN 0x0002 /* socket has had listen() */
38: #define SO_REUSEADDR 0x0004 /* allow local address reuse */
39: #define SO_KEEPALIVE 0x0008 /* keep connections alive */
40: #define SO_DONTROUTE 0x0010 /* just use interface addresses */
41: #define SO_BROADCAST 0x0020 /* permit sending of broadcast msgs */
42: #define SO_USELOOPBACK 0x0040 /* bypass hardware when possible */
43: #define SO_LINGER 0x0080 /* linger on close if data present */
44: #define SO_OOBINLINE 0x0100 /* leave received OOB data in line */
45:
46: /*
47: * Additional options, not kept in so_options.
48: */
49: #define SO_SNDBUF 0x1001 /* send buffer size */
50: #define SO_RCVBUF 0x1002 /* receive buffer size */
51: #define SO_SNDLOWAT 0x1003 /* send low-water mark */
52: #define SO_RCVLOWAT 0x1004 /* receive low-water mark */
53: #define SO_SNDTIMEO 0x1005 /* send timeout */
54: #define SO_RCVTIMEO 0x1006 /* receive timeout */
55: #define SO_ERROR 0x1007 /* get error status and clear */
56: #define SO_TYPE 0x1008 /* get socket type */
57:
58: /*
59: * Structure used for manipulating linger option.
60: */
61: struct linger {
62: int l_onoff; /* option on/off */
63: int l_linger; /* linger time */
64: };
65:
66: /*
67: * Level number for (get/set)sockopt() to apply to socket itself.
68: */
69: #define SOL_SOCKET 0xffff /* options for socket level */
70:
71: /*
72: * Address families.
73: */
74: #define AF_UNSPEC 0 /* unspecified */
75: #define AF_UNIX 1 /* local to host (pipes, portals) */
76: #define AF_INET 2 /* internetwork: UDP, TCP, etc. */
77: #define AF_IMPLINK 3 /* arpanet imp addresses */
78: #define AF_PUP 4 /* pup protocols: e.g. BSP */
79: #define AF_CHAOS 5 /* mit CHAOS protocols */
80: #define AF_NS 6 /* XEROX NS protocols */
81: #define AF_NBS 7 /* nbs protocols */
82: #define AF_ECMA 8 /* european computer manufacturers */
83: #define AF_DATAKIT 9 /* datakit protocols */
84: #define AF_CCITT 10 /* CCITT protocols, X.25 etc */
85: #define AF_SNA 11 /* IBM SNA */
86: #define AF_DECnet 12 /* DECnet */
87: #define AF_DLI 13 /* Direct data link interface */
88: #define AF_LAT 14 /* LAT */
89: #define AF_HYLINK 15 /* NSC Hyperchannel */
90: #define AF_APPLETALK 16 /* Apple Talk */
91:
92: #define AF_MAX 17
93:
94: /*
95: * Structure used by kernel to store most
96: * addresses.
97: */
98: struct sockaddr {
99: u_short sa_family; /* address family */
100: char sa_data[14]; /* up to 14 bytes of direct address */
101: };
102:
103: /*
104: * Structure used by kernel to pass protocol
105: * information in raw sockets.
106: */
107: struct sockproto {
108: u_short sp_family; /* address family */
109: u_short sp_protocol; /* protocol */
110: };
111:
112: /*
113: * Protocol families, same as address families for now.
114: */
115: #define PF_UNSPEC AF_UNSPEC
116: #define PF_UNIX AF_UNIX
117: #define PF_INET AF_INET
118: #define PF_IMPLINK AF_IMPLINK
119: #define PF_PUP AF_PUP
120: #define PF_CHAOS AF_CHAOS
121: #define PF_NS AF_NS
122: #define PF_NBS AF_NBS
123: #define PF_ECMA AF_ECMA
124: #define PF_DATAKIT AF_DATAKIT
125: #define PF_CCITT AF_CCITT
126: #define PF_SNA AF_SNA
127: #define PF_DECnet AF_DECnet
128: #define PF_DLI AF_DLI
129: #define PF_LAT AF_LAT
130: #define PF_HYLINK AF_HYLINK
131: #define PF_APPLETALK AF_APPLETALK
132:
133: #define PF_MAX AF_MAX
134:
135: /*
136: * Maximum queue length specifiable by listen.
137: */
138: #define SOMAXCONN 5
139:
140: /*
141: * Message header for recvmsg and sendmsg calls.
142: */
143: struct msghdr {
144: caddr_t msg_name; /* optional address */
145: int msg_namelen; /* size of address */
146: struct iovec *msg_iov; /* scatter/gather array */
147: int msg_iovlen; /* # elements in msg_iov */
148: caddr_t msg_accrights; /* access rights sent/received */
149: int msg_accrightslen;
150: };
151:
152: #define MSG_OOB 0x1 /* process out-of-band data */
153: #define MSG_PEEK 0x2 /* peek at incoming message */
154: #define MSG_DONTROUTE 0x4 /* send without using routing tables */
155:
156: #define MSG_MAXIOVLEN 16
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