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git.ipfire.org Git - thirdparty/glibc.git/blob - sysdeps/unix/sysv/linux/netinet/in.h
1 /* Copyright (C) 1991, 92, 93, 94, 95, 96, 97 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2, or (at your option)
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU Library General Public
15 License along with the GNU C Library; see the file COPYING.LIB. If not,
16 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 Boston, MA 02111-1307, USA. */
21 #define _NETINET_IN_H 1
24 #include <sys/socket.h>
27 /* Standard well-defined IP protocols. */
30 IPPROTO_IP
= 0, /* Dummy protocol for TCP. */
31 IPPROTO_ICMP
= 1, /* Internet Control Message Protocol. */
32 IPPROTO_IGMP
= 2, /* Internet Group Management Protocol. */
33 IPPROTO_IPIP
= 4, /* IPIP tunnels (older KA9Q tunnels use 94). */
34 IPPROTO_TCP
= 6, /* Transmission Control Protocol. */
35 IPPROTO_EGP
= 8, /* Exterior Gateway Protocol. */
36 IPPROTO_PUP
= 12, /* PUP protocol. */
37 IPPROTO_UDP
= 17, /* User Datagram Protocol. */
38 IPPROTO_IDP
= 22, /* XNS IDP protocol. */
40 IPPROTO_RAW
= 255, /* Raw IP packets. */
44 /* Standard well-known ports. */
47 IPPORT_ECHO
= 7, /* Echo service. */
48 IPPORT_DISCARD
= 9, /* Discard transmissions service. */
49 IPPORT_SYSTAT
= 11, /* System status service. */
50 IPPORT_DAYTIME
= 13, /* Time of day service. */
51 IPPORT_NETSTAT
= 15, /* Network status service. */
52 IPPORT_FTP
= 21, /* File Transfer Protocol. */
53 IPPORT_TELNET
= 23, /* Telnet protocol. */
54 IPPORT_SMTP
= 25, /* Simple Mail Transfer Protocol. */
55 IPPORT_TIMESERVER
= 37, /* Timeserver service. */
56 IPPORT_NAMESERVER
= 42, /* Domain Name Service. */
57 IPPORT_WHOIS
= 43, /* Internet Whois service. */
60 IPPORT_TFTP
= 69, /* Trivial File Transfer Protocol. */
62 IPPORT_FINGER
= 79, /* Finger service. */
64 IPPORT_SUPDUP
= 95, /* SUPDUP protocol. */
67 IPPORT_EXECSERVER
= 512, /* execd service. */
68 IPPORT_LOGINSERVER
= 513, /* rlogind service. */
69 IPPORT_CMDSERVER
= 514,
70 IPPORT_EFSSERVER
= 520,
74 IPPORT_WHOSERVER
= 513,
75 IPPORT_ROUTESERVER
= 520,
77 /* Ports less than this value are reserved for privileged processes. */
78 IPPORT_RESERVED
= 1024,
80 /* Ports greater this value are reserved for (non-privileged) servers. */
81 IPPORT_USERRESERVED
= 5000
85 /* Internet address. */
92 /* Definitions of the bits in an Internet address integer.
94 On subnets, host and network parts are found according to
95 the subnet mask, not these masks. */
97 #define IN_CLASSA(a) ((((unsigned) (a)) & 0x80000000) == 0)
98 #define IN_CLASSA_NET 0xff000000
99 #define IN_CLASSA_NSHIFT 24
100 #define IN_CLASSA_HOST (0xffffffff & ~IN_CLASSA_NET)
101 #define IN_CLASSA_MAX 128
103 #define IN_CLASSB(a) ((((unsigned) (a)) & 0xc0000000) == 0x80000000)
104 #define IN_CLASSB_NET 0xffff0000
105 #define IN_CLASSB_NSHIFT 16
106 #define IN_CLASSB_HOST (0xffffffff & ~IN_CLASSB_NET)
107 #define IN_CLASSB_MAX 65536
109 #define IN_CLASSC(a) ((((unsigned) (a)) & 0xc0000000) == 0xc0000000)
110 #define IN_CLASSC_NET 0xffffff00
111 #define IN_CLASSC_NSHIFT 8
112 #define IN_CLASSC_HOST (0xffffffff & ~IN_CLASSC_NET)
114 #define IN_CLASSD(a) ((((unsigned) (a)) & 0xf0000000) == 0xe0000000)
115 #define IN_MULTICAST(a) IN_CLASSD(a)
117 #define IN_EXPERIMENTAL(a) ((((unsigned) (a)) & 0xe0000000) == 0xe0000000)
118 #define IN_BADCLASS(a) ((((unsigned) (a)) & 0xf0000000) == 0xf0000000)
120 /* Address to accept any incoming messages. */
121 #define INADDR_ANY ((unsigned) 0x00000000)
122 /* Address to send to all hosts. */
123 #define INADDR_BROADCAST ((unsigned) 0xffffffff)
124 /* Address indicating an error return. */
125 #define INADDR_NONE 0xffffffff
127 /* Network number for local host loopback. */
128 #define IN_LOOPBACKNET 127
129 /* Address to loopback in software to local host. */
130 #ifndef INADDR_LOOPBACK
131 #define INADDR_LOOPBACK 0x7f000001 /* Internet address 127.0.0.1. */
135 /* Get the definition of the macro to define the common sockaddr members. */
136 #include <sockaddrcom.h>
139 /* Structure describing an Internet socket address. */
142 __SOCKADDR_COMMON (sin_
);
143 unsigned short int sin_port
; /* Port number. */
144 struct in_addr sin_addr
; /* Internet address. */
146 /* Pad to size of `struct sockaddr'. */
147 unsigned char sin_zero
[sizeof(struct sockaddr
) -
148 __SOCKADDR_COMMON_SIZE
-
149 sizeof(unsigned short int) -
150 sizeof(struct in_addr
)];
154 /* Options for use with `getsockopt' and `setsockopt' at the IP level.
155 The first word in the comment at the right is the data type used;
156 "bool" means a boolean value stored in an `int'. */
157 #define IP_TOS 1 /* int; IP type of service and precedence. */
158 #define IP_TTL 2 /* int; IP time to live. */
159 #define IP_HDRINCL 3 /* int; Header is included with data. */
160 #define IP_OPTIONS 4 /* ip_opts; IP per-packet options. */
161 #define IP_MULTICAST_IF 32 /* in_addr; set/get IP multicast i/f */
162 #define IP_MULTICAST_TTL 33 /* u_char; set/get IP multicast ttl */
163 #define IP_MULTICAST_LOOP 34 /* i_char; set/get IP multicast loopback */
164 #define IP_ADD_MEMBERSHIP 35 /* ip_mreq; add an IP group membership */
165 #define IP_DROP_MEMBERSHIP 36 /* ip_mreq; drop an IP group membership */
167 /* Structure used to describe IP options for IP_OPTIONS. The `ip_dst'
168 field is used for the first-hop gateway when using a source route
169 (this gets put into the header proper). */
172 struct in_addr ip_dst
; /* First hop; zero without source route. */
173 char ip_opts
[40]; /* Actually variable in size. */
176 /* Structure used for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP. */
179 struct in_addr imr_multiaddr
; /* IP multicast address of group */
180 struct in_addr imr_interface
; /* local IP address of interface */
183 /* Functions to convert between host and network byte order. */
185 extern unsigned long int ntohl
__P ((unsigned long int));
186 extern unsigned short int ntohs
__P ((unsigned short int));
187 extern unsigned long int htonl
__P ((unsigned long int));
188 extern unsigned short int htons
__P ((unsigned short int));
192 #if __BYTE_ORDER == __BIG_ENDIAN
193 /* The host byte order is the same as network byte order,
194 so these functions are all just identity. */
201 #endif /* netinet/in.h */