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[glibc.git] / bits / socket.h
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1 /* System-specific socket constants and types. Generic/4.3 BSD version.
2 Copyright (C) 1991, 92, 94, 95, 96, 97, 98 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Library General Public License as
7 published by the Free Software Foundation; either version 2 of the
8 License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Library General Public License for more details.
15 You should have received a copy of the GNU Library General Public
16 License along with the GNU C Library; see the file COPYING.LIB. If not,
17 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA. */
20 #ifndef __BITS_SOCKET_H
21 #define __BITS_SOCKET_H 1
23 #if !defined _SYS_SOCKET_H && !defined _NETINET_IN_H
24 # error "Never include <bits/socket.h> directly; use <sys/socket.h> instead."
25 #endif
27 #define __need_size_t
28 #include <stddef.h>
30 /* Type for length arguments in socket calls. */
31 typedef unsigned int socklen_t;
34 /* Types of sockets. */
35 enum __socket_type
37 SOCK_STREAM = 1, /* Sequenced, reliable, connection-based
38 byte streams. */
39 #define SOCK_STREAM SOCK_STREAM
40 SOCK_DGRAM = 2, /* Connectionless, unreliable datagrams
41 of fixed maximum length. */
42 #define SOCK_DGRAM SOCK_DGRAM
43 SOCK_RAW = 3, /* Raw protocol interface. */
44 #define SOCK_RAW SOCK_RAW
45 SOCK_RDM = 4, /* Reliably-delivered messages. */
46 #define SOCK_RDM SOCK_RDM
47 SOCK_SEQPACKET = 5, /* Sequenced, reliable, connection-based,
48 datagrams of fixed maximum length. */
49 #define SOCK_SEQPACKET SOCK_SEQPACKET
52 /* Protocol families. */
53 #define PF_UNSPEC 0 /* Unspecified. */
54 #define PF_LOCAL 1 /* Local to host (pipes and file-domain). */
55 #define PF_UNIX PF_LOCAL /* Old BSD name for PF_LOCAL. */
56 #define PF_FILE PF_LOCAL /* POSIX name for PF_LOCAL. */
57 #define PF_INET 2 /* IP protocol family. */
58 #define PF_IMPLINK 3 /* ARPAnet IMP protocol. */
59 #define PF_PUP 4 /* PUP protocols. */
60 #define PF_CHAOS 5 /* MIT Chaos protocols. */
61 #define PF_NS 6 /* Xerox NS protocols. */
62 #define PF_ISO 7 /* ISO protocols. */
63 #define PF_OSI PF_ISO
64 #define PF_ECMA 8 /* ECMA protocols. */
65 #define PF_DATAKIT 9 /* AT&T Datakit protocols. */
66 #define PF_CCITT 10 /* CCITT protocols (X.25 et al). */
67 #define PF_SNA 11 /* IBM SNA protocol. */
68 #define PF_DECnet 12 /* DECnet protocols. */
69 #define PF_DLI 13 /* Direct data link interface. */
70 #define PF_LAT 14 /* DEC Local Area Transport protocol. */
71 #define PF_HYLINK 15 /* NSC Hyperchannel protocol. */
72 #define PF_APPLETALK 16 /* Don't use this. */
73 #define PF_ROUTE 17 /* Internal Routing Protocol. */
74 #define PF_LINK 18 /* Link layer interface. */
75 #define PF_XTP 19 /* eXpress Transfer Protocol (no AF). */
76 #define PF_COIP 20 /* Connection-oriented IP, aka ST II. */
77 #define PF_CNT 21 /* Computer Network Technology. */
78 #define PF_RTIP 22 /* Help Identify RTIP packets. **/
79 #define PF_IPX 23 /* Novell Internet Protocol. */
80 #define PF_SIP 24 /* Simple Internet Protocol. */
81 #define PF_PIP 25 /* Help Identify PIP packets. */
82 #define PF_INET6 26 /* IP version 6. */
83 #define PF_MAX 27
85 /* Address families. */
86 #define AF_UNSPEC PF_UNSPEC
87 #define AF_LOCAL PF_LOCAL
88 #define AF_UNIX PF_UNIX
89 #define AF_FILE PF_FILE
90 #define AF_INET PF_INET
91 #define AF_IMPLINK PF_IMPLINK
92 #define AF_PUP PF_PUP
93 #define AF_CHAOS PF_CHAOS
94 #define AF_NS PF_NS
95 #define AF_ISO PF_ISO
96 #define AF_OSI PF_OSI
97 #define AF_ECMA PF_ECMA
98 #define AF_DATAKIT PF_DATAKIT
99 #define AF_CCITT PF_CCITT
100 #define AF_SNA PF_SNA
101 #define AF_DECnet PF_DECnet
102 #define AF_DLI PF_DLI
103 #define AF_LAT PF_LAT
104 #define AF_HYLINK PF_HYLINK
105 #define AF_APPLETALK PF_APPLETALK
106 #define AF_ROUTE PF_ROUTE
107 #define AF_LINK PF_LINK
108 #define pseudo_AF_XTP PF_XTP
109 #define AF_COIP PF_COIP
110 #define AF_CNT PF_CNT
111 #define pseudo_AF_RTIP PF_RTIP
112 #define AF_IPX PF_IPX
113 #define AF_SIP PF_SIP
114 #define pseudo_AF_PIP PF_PIP
115 #define AF_INET6 PF_INET6
116 #define AF_MAX PF_MAX
119 /* Get the definition of the macro to define the common sockaddr members. */
120 #include <bits/sockaddr.h>
122 /* Structure describing a generic socket address. */
123 struct sockaddr
125 __SOCKADDR_COMMON (sa_); /* Common data: address family and length. */
126 char sa_data[14]; /* Address data. */
130 /* Bits in the FLAGS argument to `send', `recv', et al. */
131 enum
133 MSG_OOB = 0x01, /* Process out-of-band data. */
134 #define MSG_OOB MSG_OOB
135 MSG_PEEK = 0x02, /* Peek at incoming messages. */
136 #define MSG_PEEK MSG_PEEK
137 MSG_DONTROUTE = 0x04, /* Don't use local routing. */
138 #define MSG_DONTROUTE MSG_DONTROUTE
139 MSG_EOR = 0x08, /* Data completes record. */
140 #define MSG_EOR MSG_EOR
141 MSG_TRUNC = 0x10, /* Data discarded before delivery. */
142 #define MSG_TRUNC MSG_TRUNC
143 MSG_CTRUNC = 0x20, /* Control data lost before delivery. */
144 #define MSG_CTRUNC MSG_CTRUNC
145 MSG_WAITALL = 0x40, /* Wait for full request or error. */
146 #define MSG_WAITALL MSG_WAITALL
147 MSG_DONTWAIT = 0x80, /* This message should be nonblocking. */
148 #define MSG_DONTWAIT MSG_DONTWAIT
152 /* Structure describing messages sent by
153 `sendmsg' and received by `recvmsg'. */
154 struct msghdr
156 __ptr_t msg_name; /* Address to send to/receive from. */
157 socklen_t msg_namelen; /* Length of address data. */
159 struct iovec *msg_iov; /* Vector of data to send/receive into. */
160 int msg_iovlen; /* Number of elements in the vector. */
162 __ptr_t msg_accrights; /* Access rights information. */
163 socklen_t msg_accrightslen; /* Length of access rights information. */
165 int msg_flags; /* Flags in received message. */
169 /* Protocol number used to manipulate socket-level options
170 with `getsockopt' and `setsockopt'. */
171 #define SOL_SOCKET 0xffff
173 /* Socket-level options for `getsockopt' and `setsockopt'. */
174 enum
176 SO_DEBUG = 0x0001, /* Record debugging information. */
177 #define SO_DEBUG SO_DEBUG
178 SO_ACCEPTCONN = 0x0002, /* Accept connections on socket. */
179 #define SO_ACCEPTCONN SO_ACCEPTCONN
180 SO_REUSEADDR = 0x0004, /* Allow reuse of local addresses. */
181 #define SO_REUSEADDR SO_REUSEADDR
182 SO_KEEPALIVE = 0x0008, /* Keep connections alive and send
183 SIGPIPE when they die. */
184 #define SO_KEEPALIVE SO_KEEPALIVE
185 SO_DONTROUTE = 0x0010, /* Don't do local routing. */
186 #define SO_DONTROUTE SO_DONTROUTE
187 SO_BROADCAST = 0x0020, /* Allow transmission of
188 broadcast messages. */
189 #define SO_BROADCAST SO_BROADCAST
190 SO_USELOOPBACK = 0x0040, /* Use the software loopback to avoid
191 hardware use when possible. */
192 #define SO_USELOOPBACK SO_USELOOPBACK
193 SO_LINGER = 0x0080, /* Block on close of a reliable
194 socket to transmit pending data. */
195 #define SO_LINGER SO_LINGER
196 SO_OOBINLINE = 0x0100, /* Receive out-of-band data in-band. */
197 #define SO_OOBINLINE SO_OOBINLINE
198 SO_REUSEPORT = 0x0200, /* Allow local address and port reuse. */
199 #define SO_REUSEPORT SO_REUSEPORT
200 SO_SNDBUF = 0x1001, /* Send buffer size. */
201 #define SO_SNDBUF SO_SNDBUF
202 SO_RCVBUF = 0x1002, /* Receive buffer. */
203 #define SO_RCVBUF SO_RCVBUF
204 SO_SNDLOWAT = 0x1003, /* Send low-water mark. */
205 #define SO_SNDLOWAT SO_SNDLOWAT
206 SO_RCVLOWAT = 0x1004, /* Receive low-water mark. */
207 #define SO_RCVLOWAT SO_RCVLOWAT
208 SO_SNDTIMEO = 0x1005, /* Send timeout. */
209 #define SO_SNDTIMEO SO_SNDTIMEO
210 SO_RCVTIMEO = 0x1006, /* Receive timeout. */
211 #define SO_RCVTIMEO SO_RCVTIMEO
212 SO_ERROR = 0x1007, /* Get and clear error status. */
213 #define SO_ERROR SO_ERROR
214 SO_STYLE = 0x1008, /* Get socket connection style. */
215 #define SO_STYLE SO_STYLE
216 SO_TYPE = SO_STYLE, /* Compatible name for SO_STYLE. */
217 #define SO_TYPE SO_TYPE
220 /* Structure used to manipulate the SO_LINGER option. */
221 struct linger
223 int l_onoff; /* Nonzero to linger on close. */
224 int l_linger; /* Time to linger. */
227 #endif /* bits/socket.h */