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authorRoland McGrath <roland@gnu.org>1995-02-18 01:27:10 +0000
committerRoland McGrath <roland@gnu.org>1995-02-18 01:27:10 +0000
commit28f540f45bbacd939bfd07f213bcad2bf730b1bf (patch)
tree15f07c4c43d635959c6afee96bde71fb1b3614ee /inet/netinet
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initial import
Diffstat (limited to 'inet/netinet')
-rw-r--r--inet/netinet/in.h198
1 files changed, 198 insertions, 0 deletions
diff --git a/inet/netinet/in.h b/inet/netinet/in.h
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index 0000000000..e8bc3b075e
--- /dev/null
+++ b/inet/netinet/in.h
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+/* Copyright (C) 1991, 1992, 1993, 1994 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 General Public License as published by
+the Free Software Foundation; either version 2, 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with the GNU C Library; see the file COPYING.  If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+#ifndef	_NETINET_IN_H
+
+#define	_NETINET_IN_H	1
+#include <features.h>
+
+#include <sys/socket.h>
+
+
+/* Standard well-defined IP protocols.  */
+enum
+  {
+    IPPROTO_IP = 0,	/* Dummy protocol for TCP.  */
+    IPPROTO_ICMP = 1,	/* Internet Control Message Protocol.  */
+    IPPROTO_GGP = 2,	/* Gateway Protocol (deprecated).  */
+    IPPROTO_TCP = 6,	/* Transmission Control Protocol.  */
+    IPPROTO_EGP = 8,	/* Exterior Gateway Protocol.  */
+    IPPROTO_PUP = 12,	/* PUP protocol.  */
+    IPPROTO_UDP = 17,	/* User Datagram Protocol.  */
+    IPPROTO_IDP = 22,	/* XNS IDP protocol.  */
+
+    IPPROTO_RAW = 255,	/* Raw IP packets.  */
+    IPPROTO_MAX,
+  };
+
+/* Standard well-known ports.  */
+enum
+  {
+    IPPORT_ECHO = 7,		/* Echo service.  */
+    IPPORT_DISCARD = 9,		/* Discard transmissions service.  */
+    IPPORT_SYSTAT = 11,		/* System status service.  */
+    IPPORT_DAYTIME = 13,	/* Time of day service.  */
+    IPPORT_NETSTAT = 15,	/* Network status service.  */
+    IPPORT_FTP = 21,		/* File Transfer Protocol.  */
+    IPPORT_TELNET = 23,		/* Telnet protocol.  */
+    IPPORT_SMTP = 25,		/* Simple Mail Transfer Protocol.  */
+    IPPORT_TIMESERVER = 37,	/* Timeserver service.  */
+    IPPORT_NAMESERVER = 42,	/* Domain Name Service.  */
+    IPPROT_WHOIS = 43,		/* Internet Whois service.  */
+    IPPORT_MTP = 57,
+
+    IPPORT_TFTP = 69,		/* Trivial File Transfer Protocol.  */
+    IPPORT_RJE = 77,
+    IPPORT_FINGER = 79,		/* Finger service.  */
+    IPPORT_TTYLINK = 87,
+    IPPORT_SUPDUP = 95,		/* SUPDUP protocol.  */
+
+
+    IPPORT_EXECSERVER = 512,	/* execd service.  */
+    IPPORT_LOGINSERVER = 513,	/* rlogind service.  */
+    IPPORT_CMDSERVER = 514,
+    IPPORT_EFSSERVER = 520,
+
+    /* UDP ports.  */
+    IPPORT_BIFFUDP = 512,
+    IPPORT_WHOSERVER = 513,
+    IPPORT_ROUTESERVER = 520,
+
+    /* Ports less than this value are reserved for privileged processes.  */
+    IPPORT_RESERVED = 1024,
+
+    /* Ports greater this value are reserved for (non-privileged) servers.  */
+    IPPORT_USERRESERVED = 5000,
+  };
+
+
+/* Link numbers.  */
+#define	IMPLINK_IP		155
+#define	IMPLINK_LOWEXPER	156
+#define	IMPLINK_HIGHEXPER	158
+
+
+/* Internet address.  */
+struct in_addr
+  {
+    unsigned long int s_addr;
+  };
+
+
+/* Definitions of the bits in an Internet address integer.
+
+   On subnets, host and network parts are found according to
+   the subnet mask, not these masks.  */
+
+#define	IN_CLASSA(a)		((((long int) (a)) & 0x80000000) == 0)
+#define	IN_CLASSA_NET		0xff000000
+#define	IN_CLASSA_NSHIFT	24
+#define	IN_CLASSA_HOST		(0xffffffff & ~IN_CLASSA_NET)
+#define	IN_CLASSA_MAX		128
+
+#define	IN_CLASSB(a)		((((long int) (a)) & 0xc0000000) == 0x80000000)
+#define	IN_CLASSB_NET		0xffff0000
+#define	IN_CLASSB_NSHIFT	16
+#define	IN_CLASSB_HOST		(0xffffffff & ~IN_CLASSB_NET)
+#define	IN_CLASSB_MAX		65536
+
+#define	IN_CLASSC(a)		((((long int) (a)) & 0xc0000000) == 0xc0000000)
+#define	IN_CLASSC_NET		0xffffff00
+#define	IN_CLASSC_NSHIFT	8
+#define	IN_CLASSC_HOST		(0xffffffff & ~IN_CLASSC_NET)
+
+#define	IN_CLASSD(a)		((((long int) (a)) & 0xf0000000) = 0xe0000000)
+#define	IN_MULTICAST(a)		IN_CLASSD(a)
+
+#define	IN_EXPERIMENTAL(a)	((((long int) (a)) & 0xe0000000) = 0xe0000000)
+#define	IN_BADCLASS(a)		((((long int) (a)) & 0xf0000000) = 0xf0000000)
+
+/* Address to accept any incoming messages.  */
+#define	INADDR_ANY		((unsigned long int) 0x00000000)
+/* Address to send to all hosts.  */
+#define	INADDR_BROADCAST	((unsigned long int) 0xffffffff)
+/* Address indicating an error return.  */
+#define	INADDR_NONE		0xffffffff
+
+/* Network number for local host loopback.  */
+#define	IN_LOOPBACKNET	127
+/* Address to loopback in software to local host.  */
+#ifndef INADDR_LOOPBACK
+#define	INADDR_LOOPBACK	0x7f000001	/* Internet address 127.0.0.1.  */
+#endif
+
+
+/* Get the definition of the macro to define the common sockaddr members.  */
+#include <sockaddrcom.h>
+
+
+/* Structure describing an Internet socket address.  */
+struct sockaddr_in
+  {
+    __SOCKADDR_COMMON (sin_);
+    unsigned short int sin_port;	/* Port number.  */
+    struct in_addr sin_addr;		/* Internet address.  */
+
+    /* Pad to size of `struct sockaddr'.  */
+    unsigned char sin_zero[sizeof(struct sockaddr) -
+			   __SOCKADDR_COMMON_SIZE -
+			   sizeof(unsigned short int) -
+			   sizeof(struct in_addr)];
+  };
+
+
+/* Options for use with `getsockopt' and `setsockopt' at the IP level.
+   The first word in the comment at the right is the data type used;
+   "bool" means a boolean value stored in an `int'.  */
+#define	IP_OPTIONS	1	/* ip_opts; IP per-packet options.  */
+#define	IP_HDRINCL	2	/* int; Header is included with data.  */
+#define	IP_TOS		3	/* int; IP type of service and precedence.  */
+#define	IP_TTL		4	/* int; IP time to live.  */
+#define	IP_RECVOPTS	5	/* bool; Receive all IP options w/datagram.  */
+#define	IP_RECVRETOPTS	6	/* bool; Receive IP options for response.  */
+#define	IP_RECVDSTADDR	7	/* bool; Receive IP dst addr w/datagram.  */
+#define	IP_RETOPTS	8	/* ip_opts; Set/get IP per-packet options.  */
+
+/* Structure used to describe IP options for IP_OPTIONS and IP_RETOPTS.
+   The `ip_dst' field is used for the first-hop gateway when using a
+   source route (this gets put into the header proper).  */
+struct ip_opts 
+  {
+    struct in_addr ip_dst;	/* First hop; zero without source route.  */
+    char ip_opts[40];		/* Actually variable in size.  */
+  };
+
+
+/* Functions to convert between host and network byte order.  */
+
+extern unsigned long int ntohl __P ((unsigned long int));
+extern unsigned short int ntohs __P ((unsigned short int));
+extern unsigned long int htonl __P ((unsigned long int));
+extern unsigned short int htons __P ((unsigned short int));
+
+#include <endian.h>
+
+#if __BYTE_ORDER == __BIG_ENDIAN
+/* The host byte order is the same as network byte order,
+   so these functions are all just identity.  */
+#define	ntohl(x)	(x)
+#define	ntohs(x)	(x)
+#define	htonl(x)	(x)
+#define	htons(x)	(x)
+#endif
+
+#endif	/* netinet/in.h */