summary refs log tree commit diff
path: root/sysdeps/generic/bits/socket.h
blob: a2858b8de84300c652865becbd36e96bb2a2c53e (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
/* System-specific socket constants and types.  Generic/4.3 BSD version.
   Copyright (C) 1991, 92, 94, 95, 96, 97 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public License as
   published by the Free Software Foundation; either version 2 of the
   License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with the GNU C Library; see the file COPYING.LIB.  If not,
   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */

#ifndef _SYS_SOCKET_H
# error "Never include <bits/socket.h> directly; use <sys/socket.h> instead."
#endif

#define	__need_size_t
#include <stddef.h>

/* Type for length arguments in socket calls.  */
typedef unsigned int socklen_t;


/* Types of sockets.  */
enum __socket_type
{
  SOCK_STREAM = 1,		/* Sequenced, reliable, connection-based
				   byte streams.  */
#define SOCK_STREAM SOCK_STREAM
  SOCK_DGRAM = 2,		/* Connectionless, unreliable datagrams
				   of fixed maximum length.  */
#define SOCK_DGRAM SOCK_DGRAM
  SOCK_RAW = 3,			/* Raw protocol interface.  */
#define SOCK_RAW SOCK_RAW
  SOCK_RDM = 4,			/* Reliably-delivered messages.  */
#define SOCK_RDM SOCK_RDM
  SOCK_SEQPACKET = 5,		/* Sequenced, reliable, connection-based,
				   datagrams of fixed maximum length.  */
#define SOCK_SEQPACKET SOCK_SEQPACKET
};

/* Protocol families.  */
#define	PF_UNSPEC	0	/* Unspecified.  */
#define	PF_LOCAL	1	/* Local to host (pipes and file-domain).  */
#define	PF_UNIX		PF_LOCAL /* Old BSD name for PF_LOCAL.  */
#define	PF_FILE		PF_LOCAL /* POSIX name for PF_LOCAL.  */
#define	PF_INET		2	/* IP protocol family.  */
#define	PF_IMPLINK	3	/* ARPAnet IMP protocol.  */
#define	PF_PUP		4	/* PUP protocols.  */
#define	PF_CHAOS	5	/* MIT Chaos protocols.  */
#define	PF_NS		6	/* Xerox NS protocols.  */
#define	PF_ISO		7	/* ISO protocols.  */
#define	PF_OSI		PF_ISO
#define	PF_ECMA		8	/* ECMA protocols.  */
#define	PF_DATAKIT	9	/* AT&T Datakit protocols.  */
#define	PF_CCITT	10	/* CCITT protocols (X.25 et al).  */
#define	PF_SNA		11	/* IBM SNA protocol.  */
#define	PF_DECnet	12	/* DECnet protocols.  */
#define	PF_DLI		13	/* Direct data link interface.  */
#define	PF_LAT		14	/* DEC Local Area Transport protocol.  */
#define	PF_HYLINK	15	/* NSC Hyperchannel protocol.  */
#define	PF_APPLETALK	16	/* Don't use this.  */
#define	PF_ROUTE	17	/* Internal Routing Protocol.  */
#define	PF_LINK		18	/* Link layer interface.  */
#define	PF_XTP		19	/* eXpress Transfer Protocol (no AF).  */
#define	PF_COIP		20	/* Connection-oriented IP, aka ST II.  */
#define	PF_CNT		21	/* Computer Network Technology.  */
#define PF_RTIP		22	/* Help Identify RTIP packets.  **/
#define	PF_IPX		23	/* Novell Internet Protocol.  */
#define	PF_SIP		24	/* Simple Internet Protocol.  */
#define PF_PIP		25	/* Help Identify PIP packets.  */
#define PF_INET6	26	/* IP version 6.  */
#define	PF_MAX		27

/* Address families.  */
#define	AF_UNSPEC	PF_UNSPEC
#define	AF_LOCAL	PF_LOCAL
#define	AF_UNIX		PF_UNIX
#define	AF_FILE		PF_FILE
#define	AF_INET		PF_INET
#define	AF_IMPLINK	PF_IMPLINK
#define	AF_PUP		PF_PUP
#define	AF_CHAOS	PF_CHAOS
#define	AF_NS		PF_NS
#define	AF_ISO		PF_ISO
#define	AF_OSI		PF_OSI
#define	AF_ECMA		PF_ECMA
#define	AF_DATAKIT	PF_DATAKIT
#define	AF_CCITT	PF_CCITT
#define	AF_SNA		PF_SNA
#define	AF_DECnet	PF_DECnet
#define	AF_DLI		PF_DLI
#define	AF_LAT		PF_LAT
#define	AF_HYLINK	PF_HYLINK
#define	AF_APPLETALK	PF_APPLETALK
#define	AF_ROUTE	PF_ROUTE
#define	AF_LINK		PF_LINK
#define	pseudo_AF_XTP	PF_XTP
#define	AF_COIP		PF_COIP
#define	AF_CNT		PF_CNT
#define pseudo_AF_RTIP	PF_RTIP
#define	AF_IPX		PF_IPX
#define	AF_SIP		PF_SIP
#define pseudo_AF_PIP	PF_PIP
#define AF_INET6	PF_INET6
#define	AF_MAX		PF_MAX


/* Get the definition of the macro to define the common sockaddr members.  */
#include <bits/sockaddr.h>

/* Structure describing a generic socket address.  */
struct sockaddr
  {
    __SOCKADDR_COMMON (sa_);	/* Common data: address family and length.  */
    char sa_data[14];		/* Address data.  */
  };


/* Bits in the FLAGS argument to `send', `recv', et al.  */
enum
  {
    MSG_OOB		= 0x01,	/* Process out-of-band data.  */
    MSG_PEEK		= 0x02,	/* Peek at incoming messages.  */
    MSG_DONTROUTE	= 0x04,	/* Don't use local routing.  */
    MSG_EOR		= 0x08,	/* Data completes record.  */
    MSG_TRUNC		= 0x10,	/* Data discarded before delivery.  */
    MSG_CTRUNC		= 0x20,	/* Control data lost before delivery.  */
    MSG_WAITALL		= 0x40,	/* Wait for full request or error.  */
    MSG_DONTWAIT	= 0x80,	/* This message should be nonblocking.  */
  };


/* Structure describing messages sent by
   `sendmsg' and received by `recvmsg'.  */
struct msghdr
  {
    __ptr_t msg_name;		/* Address to send to/receive from.  */
    socklen_t msg_namelen;	/* Length of address data.  */

    struct iovec *msg_iov;	/* Vector of data to send/receive into.  */
    int msg_iovlen;		/* Number of elements in the vector.  */

    __ptr_t msg_accrights;	/* Access rights information.  */
    socklen_t msg_accrightslen;	/* Length of access rights information.  */

    int msg_flags;		/* Flags in received message.  */
  };


/* Protocol number used to manipulate socket-level options
   with `getsockopt' and `setsockopt'.  */
#define	SOL_SOCKET	0xffff

/* Socket-level options for `getsockopt' and `setsockopt'.  */
enum
  {
    SO_DEBUG = 0x0001,		/* Record debugging information.  */
    SO_ACCEPTCONN = 0x0002,	/* Accept connections on socket.  */
    SO_REUSEADDR = 0x0004,	/* Allow reuse of local addresses.  */
    SO_KEEPALIVE = 0x0008,	/* Keep connections alive and send
				   SIGPIPE when they die.  */
    SO_DONTROUTE = 0x0010,	/* Don't do local routing.  */
    SO_BROADCAST = 0x0020,	/* Allow transmission of
				   broadcast messages.  */
    SO_USELOOPBACK = 0x0040,	/* Use the software loopback to avoid
				   hardware use when possible.  */
    SO_LINGER = 0x0080,		/* Block on close of a reliable
				   socket to transmit pending data.  */
    SO_OOBINLINE = 0x0100,	/* Receive out-of-band data in-band.  */

    SO_REUSEPORT = 0x0200,	/* Allow local address and port reuse.  */

    SO_SNDBUF = 0x1001,		/* Send buffer size.  */
    SO_RCVBUF = 0x1002,		/* Receive buffer.  */
    SO_SNDLOWAT = 0x1003,	/* Send low-water mark.  */
    SO_RCVLOWAT = 0x1004,	/* Receive low-water mark.  */
    SO_SNDTIMEO = 0x1005,	/* Send timeout.  */
    SO_RCVTIMEO = 0x1006,	/* Receive timeout.  */

    SO_ERROR = 0x1007,		/* Get and clear error status.  */
    SO_STYLE = 0x1008,		/* Get socket connection style.  */
    SO_TYPE = SO_STYLE,		/* Compatible name for SO_STYLE.  */
  };

/* Structure used to manipulate the SO_LINGER option.  */
struct linger
  {
    int l_onoff;		/* Nonzero to linger on close.  */
    int l_linger;		/* Time to linger.  */
  };