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07a4742f | 1 | /* System-specific socket constants and types. Generic/4.3 BSD version. |
c1301d9a | 2 | Copyright (C) 1991,92,94,95,96,97,98,99,2000 Free Software Foundation, Inc. |
5b826692 | 3 | This file is part of the GNU C Library. |
28f540f4 | 4 | |
5b826692 UD |
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. | |
28f540f4 | 9 | |
5b826692 UD |
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. | |
28f540f4 | 14 | |
5b826692 UD |
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. */ | |
28f540f4 | 19 | |
8619129f UD |
20 | #ifndef __BITS_SOCKET_H |
21 | #define __BITS_SOCKET_H 1 | |
22 | ||
4bca4c17 | 23 | #if !defined _SYS_SOCKET_H && !defined _NETINET_IN_H |
f4017d20 | 24 | # error "Never include <bits/socket.h> directly; use <sys/socket.h> instead." |
5107cf1d UD |
25 | #endif |
26 | ||
12b5b6b7 UD |
27 | #include <limits.h> |
28 | #include <bits/types.h> | |
29 | ||
28f540f4 RM |
30 | #define __need_size_t |
31 | #include <stddef.h> | |
32 | ||
55c14926 UD |
33 | /* Type for length arguments in socket calls. */ |
34 | typedef unsigned int socklen_t; | |
35 | ||
28f540f4 RM |
36 | |
37 | /* Types of sockets. */ | |
38 | enum __socket_type | |
39 | { | |
40 | SOCK_STREAM = 1, /* Sequenced, reliable, connection-based | |
41 | byte streams. */ | |
5b826692 | 42 | #define SOCK_STREAM SOCK_STREAM |
28f540f4 RM |
43 | SOCK_DGRAM = 2, /* Connectionless, unreliable datagrams |
44 | of fixed maximum length. */ | |
5b826692 | 45 | #define SOCK_DGRAM SOCK_DGRAM |
28f540f4 | 46 | SOCK_RAW = 3, /* Raw protocol interface. */ |
5b826692 | 47 | #define SOCK_RAW SOCK_RAW |
28f540f4 | 48 | SOCK_RDM = 4, /* Reliably-delivered messages. */ |
5b826692 | 49 | #define SOCK_RDM SOCK_RDM |
c1301d9a | 50 | SOCK_SEQPACKET = 5 /* Sequenced, reliable, connection-based, |
28f540f4 | 51 | datagrams of fixed maximum length. */ |
5b826692 | 52 | #define SOCK_SEQPACKET SOCK_SEQPACKET |
28f540f4 RM |
53 | }; |
54 | ||
55 | /* Protocol families. */ | |
56 | #define PF_UNSPEC 0 /* Unspecified. */ | |
57 | #define PF_LOCAL 1 /* Local to host (pipes and file-domain). */ | |
58 | #define PF_UNIX PF_LOCAL /* Old BSD name for PF_LOCAL. */ | |
f166d865 | 59 | #define PF_FILE PF_LOCAL /* POSIX name for PF_LOCAL. */ |
28f540f4 RM |
60 | #define PF_INET 2 /* IP protocol family. */ |
61 | #define PF_IMPLINK 3 /* ARPAnet IMP protocol. */ | |
62 | #define PF_PUP 4 /* PUP protocols. */ | |
63 | #define PF_CHAOS 5 /* MIT Chaos protocols. */ | |
64 | #define PF_NS 6 /* Xerox NS protocols. */ | |
65 | #define PF_ISO 7 /* ISO protocols. */ | |
66 | #define PF_OSI PF_ISO | |
67 | #define PF_ECMA 8 /* ECMA protocols. */ | |
68 | #define PF_DATAKIT 9 /* AT&T Datakit protocols. */ | |
69 | #define PF_CCITT 10 /* CCITT protocols (X.25 et al). */ | |
70 | #define PF_SNA 11 /* IBM SNA protocol. */ | |
71 | #define PF_DECnet 12 /* DECnet protocols. */ | |
72 | #define PF_DLI 13 /* Direct data link interface. */ | |
73 | #define PF_LAT 14 /* DEC Local Area Transport protocol. */ | |
74 | #define PF_HYLINK 15 /* NSC Hyperchannel protocol. */ | |
75 | #define PF_APPLETALK 16 /* Don't use this. */ | |
76 | #define PF_ROUTE 17 /* Internal Routing Protocol. */ | |
77 | #define PF_LINK 18 /* Link layer interface. */ | |
78 | #define PF_XTP 19 /* eXpress Transfer Protocol (no AF). */ | |
79 | #define PF_COIP 20 /* Connection-oriented IP, aka ST II. */ | |
80 | #define PF_CNT 21 /* Computer Network Technology. */ | |
81 | #define PF_RTIP 22 /* Help Identify RTIP packets. **/ | |
82 | #define PF_IPX 23 /* Novell Internet Protocol. */ | |
83 | #define PF_SIP 24 /* Simple Internet Protocol. */ | |
84 | #define PF_PIP 25 /* Help Identify PIP packets. */ | |
e5508520 MB |
85 | #define PF_INET6 26 /* IP version 6. */ |
86 | #define PF_MAX 27 | |
28f540f4 RM |
87 | |
88 | /* Address families. */ | |
89 | #define AF_UNSPEC PF_UNSPEC | |
90 | #define AF_LOCAL PF_LOCAL | |
91 | #define AF_UNIX PF_UNIX | |
f166d865 | 92 | #define AF_FILE PF_FILE |
28f540f4 RM |
93 | #define AF_INET PF_INET |
94 | #define AF_IMPLINK PF_IMPLINK | |
95 | #define AF_PUP PF_PUP | |
96 | #define AF_CHAOS PF_CHAOS | |
97 | #define AF_NS PF_NS | |
98 | #define AF_ISO PF_ISO | |
99 | #define AF_OSI PF_OSI | |
100 | #define AF_ECMA PF_ECMA | |
101 | #define AF_DATAKIT PF_DATAKIT | |
102 | #define AF_CCITT PF_CCITT | |
103 | #define AF_SNA PF_SNA | |
104 | #define AF_DECnet PF_DECnet | |
105 | #define AF_DLI PF_DLI | |
106 | #define AF_LAT PF_LAT | |
107 | #define AF_HYLINK PF_HYLINK | |
108 | #define AF_APPLETALK PF_APPLETALK | |
109 | #define AF_ROUTE PF_ROUTE | |
110 | #define AF_LINK PF_LINK | |
111 | #define pseudo_AF_XTP PF_XTP | |
112 | #define AF_COIP PF_COIP | |
113 | #define AF_CNT PF_CNT | |
114 | #define pseudo_AF_RTIP PF_RTIP | |
115 | #define AF_IPX PF_IPX | |
116 | #define AF_SIP PF_SIP | |
117 | #define pseudo_AF_PIP PF_PIP | |
e5508520 | 118 | #define AF_INET6 PF_INET6 |
28f540f4 RM |
119 | #define AF_MAX PF_MAX |
120 | ||
121 | ||
122 | /* Get the definition of the macro to define the common sockaddr members. */ | |
5107cf1d | 123 | #include <bits/sockaddr.h> |
28f540f4 RM |
124 | |
125 | /* Structure describing a generic socket address. */ | |
126 | struct sockaddr | |
127 | { | |
128 | __SOCKADDR_COMMON (sa_); /* Common data: address family and length. */ | |
129 | char sa_data[14]; /* Address data. */ | |
130 | }; | |
131 | ||
28f540f4 | 132 | |
12b5b6b7 UD |
133 | /* Structure large enough to hold any socket address (with the historical |
134 | exception of AF_UNIX). We reserve 128 bytes. */ | |
135 | #if ULONG_MAX > 0xffffffff | |
c1301d9a | 136 | # define __ss_aligntype __uint64_t |
12b5b6b7 | 137 | #else |
c1301d9a | 138 | # define __ss_aligntype __uint32_t |
12b5b6b7 UD |
139 | #endif |
140 | #define _SS_SIZE 128 | |
c1301d9a | 141 | #define _SS_PADSIZE (_SS_SIZE - (2 * sizeof (__ss_aligntype))) |
12b5b6b7 UD |
142 | |
143 | struct sockaddr_storage | |
144 | { | |
145 | __SOCKADDR_COMMON (__ss_); /* Address family, etc. */ | |
c1301d9a | 146 | __ss_aligntype __ss_align; /* Force desired alignment. */ |
12b5b6b7 UD |
147 | char __ss_padding[_SS_PADSIZE]; |
148 | }; | |
149 | ||
150 | ||
28f540f4 RM |
151 | /* Bits in the FLAGS argument to `send', `recv', et al. */ |
152 | enum | |
153 | { | |
154 | MSG_OOB = 0x01, /* Process out-of-band data. */ | |
07770241 | 155 | #define MSG_OOB MSG_OOB |
28f540f4 | 156 | MSG_PEEK = 0x02, /* Peek at incoming messages. */ |
07770241 | 157 | #define MSG_PEEK MSG_PEEK |
28f540f4 | 158 | MSG_DONTROUTE = 0x04, /* Don't use local routing. */ |
07770241 | 159 | #define MSG_DONTROUTE MSG_DONTROUTE |
28f540f4 | 160 | MSG_EOR = 0x08, /* Data completes record. */ |
07770241 | 161 | #define MSG_EOR MSG_EOR |
28f540f4 | 162 | MSG_TRUNC = 0x10, /* Data discarded before delivery. */ |
07770241 | 163 | #define MSG_TRUNC MSG_TRUNC |
28f540f4 | 164 | MSG_CTRUNC = 0x20, /* Control data lost before delivery. */ |
07770241 | 165 | #define MSG_CTRUNC MSG_CTRUNC |
28f540f4 | 166 | MSG_WAITALL = 0x40, /* Wait for full request or error. */ |
07770241 | 167 | #define MSG_WAITALL MSG_WAITALL |
c1301d9a | 168 | MSG_DONTWAIT = 0x80 /* This message should be nonblocking. */ |
07770241 | 169 | #define MSG_DONTWAIT MSG_DONTWAIT |
28f540f4 RM |
170 | }; |
171 | ||
28f540f4 RM |
172 | |
173 | /* Structure describing messages sent by | |
174 | `sendmsg' and received by `recvmsg'. */ | |
175 | struct msghdr | |
176 | { | |
177 | __ptr_t msg_name; /* Address to send to/receive from. */ | |
55c14926 | 178 | socklen_t msg_namelen; /* Length of address data. */ |
28f540f4 RM |
179 | |
180 | struct iovec *msg_iov; /* Vector of data to send/receive into. */ | |
55c14926 | 181 | int msg_iovlen; /* Number of elements in the vector. */ |
28f540f4 RM |
182 | |
183 | __ptr_t msg_accrights; /* Access rights information. */ | |
55c14926 UD |
184 | socklen_t msg_accrightslen; /* Length of access rights information. */ |
185 | ||
186 | int msg_flags; /* Flags in received message. */ | |
28f540f4 RM |
187 | }; |
188 | ||
28f540f4 RM |
189 | |
190 | /* Protocol number used to manipulate socket-level options | |
191 | with `getsockopt' and `setsockopt'. */ | |
192 | #define SOL_SOCKET 0xffff | |
193 | ||
194 | /* Socket-level options for `getsockopt' and `setsockopt'. */ | |
195 | enum | |
196 | { | |
197 | SO_DEBUG = 0x0001, /* Record debugging information. */ | |
07770241 | 198 | #define SO_DEBUG SO_DEBUG |
28f540f4 | 199 | SO_ACCEPTCONN = 0x0002, /* Accept connections on socket. */ |
07770241 | 200 | #define SO_ACCEPTCONN SO_ACCEPTCONN |
28f540f4 | 201 | SO_REUSEADDR = 0x0004, /* Allow reuse of local addresses. */ |
07770241 | 202 | #define SO_REUSEADDR SO_REUSEADDR |
28f540f4 RM |
203 | SO_KEEPALIVE = 0x0008, /* Keep connections alive and send |
204 | SIGPIPE when they die. */ | |
07770241 | 205 | #define SO_KEEPALIVE SO_KEEPALIVE |
28f540f4 | 206 | SO_DONTROUTE = 0x0010, /* Don't do local routing. */ |
07770241 | 207 | #define SO_DONTROUTE SO_DONTROUTE |
28f540f4 RM |
208 | SO_BROADCAST = 0x0020, /* Allow transmission of |
209 | broadcast messages. */ | |
07770241 | 210 | #define SO_BROADCAST SO_BROADCAST |
28f540f4 RM |
211 | SO_USELOOPBACK = 0x0040, /* Use the software loopback to avoid |
212 | hardware use when possible. */ | |
07770241 | 213 | #define SO_USELOOPBACK SO_USELOOPBACK |
28f540f4 RM |
214 | SO_LINGER = 0x0080, /* Block on close of a reliable |
215 | socket to transmit pending data. */ | |
07770241 | 216 | #define SO_LINGER SO_LINGER |
28f540f4 | 217 | SO_OOBINLINE = 0x0100, /* Receive out-of-band data in-band. */ |
07770241 | 218 | #define SO_OOBINLINE SO_OOBINLINE |
28f540f4 | 219 | SO_REUSEPORT = 0x0200, /* Allow local address and port reuse. */ |
07770241 | 220 | #define SO_REUSEPORT SO_REUSEPORT |
28f540f4 | 221 | SO_SNDBUF = 0x1001, /* Send buffer size. */ |
07770241 | 222 | #define SO_SNDBUF SO_SNDBUF |
28f540f4 | 223 | SO_RCVBUF = 0x1002, /* Receive buffer. */ |
07770241 | 224 | #define SO_RCVBUF SO_RCVBUF |
28f540f4 | 225 | SO_SNDLOWAT = 0x1003, /* Send low-water mark. */ |
07770241 | 226 | #define SO_SNDLOWAT SO_SNDLOWAT |
28f540f4 | 227 | SO_RCVLOWAT = 0x1004, /* Receive low-water mark. */ |
07770241 | 228 | #define SO_RCVLOWAT SO_RCVLOWAT |
28f540f4 | 229 | SO_SNDTIMEO = 0x1005, /* Send timeout. */ |
07770241 | 230 | #define SO_SNDTIMEO SO_SNDTIMEO |
28f540f4 | 231 | SO_RCVTIMEO = 0x1006, /* Receive timeout. */ |
07770241 | 232 | #define SO_RCVTIMEO SO_RCVTIMEO |
28f540f4 | 233 | SO_ERROR = 0x1007, /* Get and clear error status. */ |
07770241 | 234 | #define SO_ERROR SO_ERROR |
28f540f4 | 235 | SO_STYLE = 0x1008, /* Get socket connection style. */ |
07770241 | 236 | #define SO_STYLE SO_STYLE |
c1301d9a | 237 | SO_TYPE = SO_STYLE /* Compatible name for SO_STYLE. */ |
07770241 | 238 | #define SO_TYPE SO_TYPE |
28f540f4 RM |
239 | }; |
240 | ||
241 | /* Structure used to manipulate the SO_LINGER option. */ | |
242 | struct linger | |
243 | { | |
244 | int l_onoff; /* Nonzero to linger on close. */ | |
245 | int l_linger; /* Time to linger. */ | |
246 | }; | |
8619129f UD |
247 | |
248 | #endif /* bits/socket.h */ |