-/* in.h 4.2 81/11/08 */
+/*
+ * Copyright (c) 1982, 1986 Regents of the University of California.
+ * All rights reserved. The Berkeley software License Agreement
+ * specifies the terms and conditions for redistribution.
+ *
+ * @(#)in.h 7.3 (Berkeley) %G%
+ */
/*
* Constants and structures defined by the internet system,
/*
* Protocols
*/
-#define IPPROTO_RAW -1
+#define IPPROTO_IP 0 /* dummy for IP */
#define IPPROTO_ICMP 1 /* control message protocol */
-#define IPPROTO_GG 2 /* gateway^2 (deprecated) */
+#define IPPROTO_GGP 2 /* gateway^2 (deprecated) */
#define IPPROTO_TCP 6 /* tcp */
+#define IPPROTO_EGP 8 /* exterior gateway protocol */
#define IPPROTO_PUP 12 /* pup */
#define IPPROTO_UDP 17 /* user datagram protocol */
+#define IPPROTO_IDP 22 /* xns idp */
+
+#define IPPROTO_RAW 255 /* raw IP packet */
+#define IPPROTO_MAX 256
-/*
- * Port/socket numbers: network standard functions
- */
-#define IPPORT_ECHO 7
-#define IPPORT_DISCARD 9
-#define IPPORT_SYSTAT 11
-#define IPPORT_DAYTIME 13
-#define IPPORT_NETSTAT 15
-#define IPPORT_FTP 21
-#define IPPORT_TELNET 23
-#define IPPORT_SMTP 25
-#define IPPORT_TIMESERVER 37
-#define IPPORT_NAMESERVER 42
-#define IPPORT_WHOIS 43
-#define IPPORT_MTP 57
/*
- * Port/socket numbers: host specific functions
+ * Ports < IPPORT_RESERVED are reserved for
+ * privileged processes (e.g. root).
+ * Ports > IPPORT_USERRESERVED are reserved
+ * for servers, not necessarily privileged.
*/
-#define IPPORT_TFTP 69
-#define IPPORT_RJE 77
-#define IPPORT_FINGER 79
-#define IPPORT_TTYLINK 87
-#define IPPORT_SUPDUP 95
+#define IPPORT_RESERVED 1024
+#define IPPORT_USERRESERVED 5000
/*
* Link numbers
#define IMPLINK_HIGHEXPER 158
/*
- * Internet address (old style... should be updated)
+ * Internet address (a structure for historical reasons)
+ */
+struct in_addr {
+ u_long s_addr;
+};
+
+/*
+ * Definitions of bits in internet address integers.
+ * On subnets, the decomposition of addresses to host and net parts
+ * is done according to subnet mask, not the masks here.
+ */
+#define IN_CLASSA(i) (((long)(i) & 0x80000000) == 0)
+#define IN_CLASSA_NET 0xff000000
+#define IN_CLASSA_NSHIFT 24
+#define IN_CLASSA_HOST 0x00ffffff
+#define IN_CLASSA_MAX 128
+
+#define IN_CLASSB(i) (((long)(i) & 0xc0000000) == 0x80000000)
+#define IN_CLASSB_NET 0xffff0000
+#define IN_CLASSB_NSHIFT 16
+#define IN_CLASSB_HOST 0x0000ffff
+#define IN_CLASSB_MAX 65536
+
+#define IN_CLASSC(i) (((long)(i) & 0xe0000000) == 0xc0000000)
+#define IN_CLASSC_NET 0xffffff00
+#define IN_CLASSC_NSHIFT 8
+#define IN_CLASSC_HOST 0x000000ff
+
+#define IN_CLASSD(i) (((long)(i) & 0xf0000000) == 0xe0000000)
+#define IN_MULTICAST(i) IN_CLASSD(i)
+
+#define IN_EXPERIMENTAL(i) (((long)(i) & 0xe0000000) == 0xe0000000)
+#define IN_BADCLASS(i) (((long)(i) & 0xf0000000) == 0xf0000000)
+
+#define INADDR_ANY (u_long)0x00000000
+#define INADDR_BROADCAST (u_long)0xffffffff /* must be masked */
+#ifndef KERNEL
+#define INADDR_NONE 0xffffffff /* -1 return */
+#endif
+
+#define IN_LOOPBACKNET 127 /* official! */
+
+/*
+ * Socket address, internet style.
*/
-struct ip_addr {
- union {
- struct { u_char s_b1,s_b2,s_b3,s_b4; } S_un_b;
- struct { u_short s_w1,s_w2; } S_un_w;
- u_long s_l;
- } S_un;
-#define s_addr S_un.s_l /* can be used for most tcp & ip code */
-#define s_host S_un.S_un_b.s_b2 /* host on imp */
-#define s_net S_un.S_un_b.s_b1 /* network */
-#define s_imp S_un.S_un_w.s_w2 /* imp */
-#define s_lhost S_un.S_un_b.s_b1 /* net library format host on imp */
-#define s_lnet S_un.S_un_b.s_b2 /* net library format network */
+struct sockaddr_in {
+ short sin_family;
+ u_short sin_port;
+ struct in_addr sin_addr;
+ char sin_zero[8];
};
+
+/*
+ * Options for use with [gs]etsockopt at the IP level.
+ */
+#define IP_OPTIONS 1 /* set/get IP per-packet options */
+
+#ifdef KERNEL
+extern struct domain inetdomain;
+extern struct protosw inetsw[];
+struct in_addr in_makeaddr();
+u_long in_netof(), in_lnaof();
+#endif