mirror of git://sourceware.org/git/glibc.git
312 lines
10 KiB
C
312 lines
10 KiB
C
/* Copyright (C) 1991, 92, 93, 94, 95, 96, 97 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifndef _NETINET_IN_H
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#define _NETINET_IN_H 1
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#include <features.h>
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#include <sys/socket.h>
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#include <sys/types.h>
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__BEGIN_DECLS
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/* Standard well-defined IP protocols. */
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enum
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{
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IPPROTO_IP = 0, /* Dummy protocol for TCP. */
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IPPROTO_ICMP = 1, /* Internet Control Message Protocol. */
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IPPROTO_IGMP = 2, /* Internet Group Management Protocol. */
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IPPROTO_IPIP = 4, /* IPIP tunnels (older KA9Q tunnels use 94). */
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IPPROTO_TCP = 6, /* Transmission Control Protocol. */
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IPPROTO_EGP = 8, /* Exterior Gateway Protocol. */
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IPPROTO_PUP = 12, /* PUP protocol. */
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IPPROTO_UDP = 17, /* User Datagram Protocol. */
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IPPROTO_IDP = 22, /* XNS IDP protocol. */
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IPPROTO_IPV6 = 41, /* IPv6-in-IPv4 tunnelling. */
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IPPROTO_ICMPV6 = 58, /* ICMPv6. */
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IPPROTO_RAW = 255, /* Raw IP packets. */
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IPPROTO_MAX
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};
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/* Standard well-known ports. */
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enum
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{
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IPPORT_ECHO = 7, /* Echo service. */
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IPPORT_DISCARD = 9, /* Discard transmissions service. */
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IPPORT_SYSTAT = 11, /* System status service. */
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IPPORT_DAYTIME = 13, /* Time of day service. */
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IPPORT_NETSTAT = 15, /* Network status service. */
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IPPORT_FTP = 21, /* File Transfer Protocol. */
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IPPORT_TELNET = 23, /* Telnet protocol. */
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IPPORT_SMTP = 25, /* Simple Mail Transfer Protocol. */
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IPPORT_TIMESERVER = 37, /* Timeserver service. */
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IPPORT_NAMESERVER = 42, /* Domain Name Service. */
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IPPORT_WHOIS = 43, /* Internet Whois service. */
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IPPORT_MTP = 57,
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IPPORT_TFTP = 69, /* Trivial File Transfer Protocol. */
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IPPORT_RJE = 77,
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IPPORT_FINGER = 79, /* Finger service. */
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IPPORT_TTYLINK = 87,
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IPPORT_SUPDUP = 95, /* SUPDUP protocol. */
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IPPORT_EXECSERVER = 512, /* execd service. */
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IPPORT_LOGINSERVER = 513, /* rlogind service. */
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IPPORT_CMDSERVER = 514,
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IPPORT_EFSSERVER = 520,
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/* UDP ports. */
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IPPORT_BIFFUDP = 512,
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IPPORT_WHOSERVER = 513,
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IPPORT_ROUTESERVER = 520,
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/* Ports less than this value are reserved for privileged processes. */
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IPPORT_RESERVED = 1024,
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/* Ports greater this value are reserved for (non-privileged) servers. */
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IPPORT_USERRESERVED = 5000
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};
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/* Internet address. */
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struct in_addr
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{
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unsigned int s_addr;
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};
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/* Definitions of the bits in an Internet address integer.
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On subnets, host and network parts are found according to
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the subnet mask, not these masks. */
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#define IN_CLASSA(a) ((((unsigned) (a)) & 0x80000000) == 0)
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#define IN_CLASSA_NET 0xff000000
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#define IN_CLASSA_NSHIFT 24
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#define IN_CLASSA_HOST (0xffffffff & ~IN_CLASSA_NET)
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#define IN_CLASSA_MAX 128
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#define IN_CLASSB(a) ((((unsigned) (a)) & 0xc0000000) == 0x80000000)
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#define IN_CLASSB_NET 0xffff0000
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#define IN_CLASSB_NSHIFT 16
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#define IN_CLASSB_HOST (0xffffffff & ~IN_CLASSB_NET)
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#define IN_CLASSB_MAX 65536
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#define IN_CLASSC(a) ((((unsigned) (a)) & 0xc0000000) == 0xc0000000)
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#define IN_CLASSC_NET 0xffffff00
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#define IN_CLASSC_NSHIFT 8
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#define IN_CLASSC_HOST (0xffffffff & ~IN_CLASSC_NET)
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#define IN_CLASSD(a) ((((unsigned) (a)) & 0xf0000000) == 0xe0000000)
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#define IN_MULTICAST(a) IN_CLASSD(a)
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#define IN_EXPERIMENTAL(a) ((((unsigned) (a)) & 0xe0000000) == 0xe0000000)
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#define IN_BADCLASS(a) ((((unsigned) (a)) & 0xf0000000) == 0xf0000000)
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/* Address to accept any incoming messages. */
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#define INADDR_ANY ((unsigned) 0x00000000)
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/* Address to send to all hosts. */
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#define INADDR_BROADCAST ((unsigned) 0xffffffff)
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/* Address indicating an error return. */
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#define INADDR_NONE ((unsigned) 0xffffffff)
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/* Network number for local host loopback. */
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#define IN_LOOPBACKNET 127
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/* Address to loopback in software to local host. */
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#ifndef INADDR_LOOPBACK
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#define INADDR_LOOPBACK ((unsigned) 0x7f000001) /* Inet address 127.0.0.1. */
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#endif
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/* IPv6 address */
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struct in6_addr
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{
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union
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{
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u_int8_t u6_addr8[16];
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u_int16_t u6_addr16[8];
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u_int32_t u6_addr32[4];
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#if (~0UL) > 0xffffffff
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u_int64_t u6_addr64[2];
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#endif
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} in6_u;
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#define s6_addr in6_u.u6_addr8
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#define s6_addr16 in6_u.u6_addr16
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#define s6_addr32 in6_u.u6_addr32
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#define s6_addr64 in6_u.u6_addr64
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};
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extern const struct in6_addr in6addr_any; /* :: */
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extern const struct in6_addr in6addr_loopback; /* ::1 */
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#define IN6ADDR_ANY_INIT { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 }
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#define IN6ADDR_LOOPBACK_INIT { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 }
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#define INET_ADDRSTRLEN 16
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#define INET6_ADDRSTRLEN 46
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/* Get the definition of the macro to define the common sockaddr members. */
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#include <sockaddrcom.h>
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/* Structure describing an Internet socket address. */
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struct sockaddr_in
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{
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__SOCKADDR_COMMON (sin_);
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unsigned short int sin_port; /* Port number. */
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struct in_addr sin_addr; /* Internet address. */
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/* Pad to size of `struct sockaddr'. */
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unsigned char sin_zero[sizeof(struct sockaddr) -
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__SOCKADDR_COMMON_SIZE -
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sizeof(unsigned short int) -
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sizeof(struct in_addr)];
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};
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/* Ditto, for IPv6. */
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struct sockaddr_in6
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{
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__SOCKADDR_COMMON (sin6_);
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u_int16_t sin6_port; /* Transport layer port # */
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u_int32_t sin6_flowinfo; /* IPv6 flow information */
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struct in6_addr sin6_addr; /* IPv6 address */
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};
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/* IPv6 multicast request. */
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struct ipv6_mreq
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{
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/* IPv6 multicast address of group */
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struct in6_addr ipv6mr_multiaddr;
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/* local IPv6 address of interface */
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int ipv6mr_ifindex;
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};
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/* Options for use with `getsockopt' and `setsockopt' at the IP level.
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The first word in the comment at the right is the data type used;
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"bool" means a boolean value stored in an `int'. */
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#define IP_TOS 1 /* int; IP type of service and precedence. */
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#define IP_TTL 2 /* int; IP time to live. */
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#define IP_HDRINCL 3 /* int; Header is included with data. */
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#define IP_OPTIONS 4 /* ip_opts; IP per-packet options. */
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#define IP_MULTICAST_IF 32 /* in_addr; set/get IP multicast i/f */
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#define IP_MULTICAST_TTL 33 /* u_char; set/get IP multicast ttl */
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#define IP_MULTICAST_LOOP 34 /* i_char; set/get IP multicast loopback */
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#define IP_ADD_MEMBERSHIP 35 /* ip_mreq; add an IP group membership */
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#define IP_DROP_MEMBERSHIP 36 /* ip_mreq; drop an IP group membership */
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/* To select the IP level. */
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#define SOL_IP 0
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/* Structure used to describe IP options for IP_OPTIONS. The `ip_dst'
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field is used for the first-hop gateway when using a source route
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(this gets put into the header proper). */
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struct ip_opts
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{
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struct in_addr ip_dst; /* First hop; zero without source route. */
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char ip_opts[40]; /* Actually variable in size. */
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};
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/* Structure used for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP. */
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struct ip_mreq
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{
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struct in_addr imr_multiaddr; /* IP multicast address of group */
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struct in_addr imr_interface; /* local IP address of interface */
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};
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/* Functions to convert between host and network byte order.
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Please note that these functions normally take `unsigned long int' or
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`unsigned short int' values as arguments and also return them. But
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this was a short-sighted decision since on different systems the types
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may have different representations but the values are always the same. */
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extern u_int32_t ntohl __P ((u_int32_t __netlong));
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extern u_int16_t ntohs __P ((u_int16_t __netshort));
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extern u_int32_t htonl __P ((u_int32_t __hostlong));
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extern u_int16_t htons __P ((u_int16_t __hostshort));
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#include <endian.h>
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#if __BYTE_ORDER == __BIG_ENDIAN
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/* The host byte order is the same as network byte order,
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so these functions are all just identity. */
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#define ntohl(x) (x)
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#define ntohs(x) (x)
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#define htonl(x) (x)
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#define htons(x) (x)
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#endif
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/* IPV6 socket options. */
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#define IPV6_ADDRFORM 1
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#define IPV6_RXINFO 2
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#define IPV6_RXHOPOPTS 3
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#define IPV6_RXDSTOPTS 4
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#define IPV6_RXSRCRT 5
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#define IPV6_PKTOPTIONS 6
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#define IPV6_CHECKSUM 7
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#define IPV6_HOPLIMIT 8
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#define IPV6_TXINFO IPV6_RXINFO
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#define SCM_SRCINFO IPV6_TXINFO
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#define SCM_SRCRT IPV6_RXSRCRT
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#define IPV6_UNICAST_HOPS 16
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#define IPV6_MULTICAST_IF 17
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#define IPV6_MULTICAST_HOPS 18
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#define IPV6_MULTICAST_LOOP 19
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#define IPV6_ADD_MEMBERSHIP 20
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#define IPV6_DROP_MEMBERSHIP 21
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#define IN6_IS_ADDR_UNSPECIFIED(a) \
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((((u_int32_t *)(a))[0] == 0) && ((u_int32_t *)(a))[1] == 0) && \
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(((u_int32_t *)(a))[2] == 0) && ((u_int32_t *)(a))[3] == 0))
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#define IN6_IS_ADDR_LOOPBACK(a) \
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((((u_int32_t *)(a))[0] == 0) && ((u_int32_t *)(a))[1] == 0) && \
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(((u_int32_t *)(a))[2] == 0) && ((u_int32_t *)(a))[3] == htonl(1)))
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#define IN6_IS_ADDR_MULTICAST(a) (((u_int8_t *)(a))[0] == 0xff)
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#define IN6_IS_ADDR_LINKLOCAL(a) \
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((((u_int32_t *)(a))[0] & htonl(0xffc00000)) == htonl(0xfe800000))
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#define IN6_IS_ADDR_SITELOCAL(a) \
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((((u_int32_t *)(a))[0] & htonl(0xffc00000)) == htonl(0xfec00000))
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#define IN6_IS_ADDR_V4MAPPED(a) \
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((((u_int32_t *)(a))[0] == 0) && (((u_int32_t *)(a))[1] == 0) && \
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(((u_int32_t *)(a))[2] == htonl(0xffff)))
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#define IN6_IS_ADDR_V4COMPAT(a) \
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((((u_int32_t *)(a))[0] == 0) && (((u_int32_t *)(a))[1] == 0) && \
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(((u_int32_t *)(a))[2] == 0) && (ntohl(((u_int32_t *)(a))[3]) > 1))
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/* Bind socket to a priviledged IP port. */
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extern int bindresvport __P ((int __sockfd, struct sockaddr_in *__sin));
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__END_DECLS
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#endif /* netinet/in.h */
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