1 files changed, 134 insertions, 0 deletions
diff --git a/unix/os/net/in.h b/unix/os/net/in.h
new file mode 100644
index 00000000..825a9d39
--- /dev/null
+++ b/unix/os/net/in.h
@@ -0,0 +1,134 @@
+/*	in.h	6.1	83/07/29	*/
+
+/*
+ * Constants and structures defined by the internet system,
+ * Per RFC 790, September 1981.
+ */
+
+/*
+ * Protocols
+ */
+#define	IPPROTO_ICMP		1		/* control message protocol */
+#define	IPPROTO_GGP		2		/* gateway^2 (deprecated) */
+#define	IPPROTO_TCP		6		/* tcp */
+#define	IPPROTO_PUP		12		/* pup */
+#define	IPPROTO_UDP		17		/* user datagram protocol */
+#define	IPPROTO_ND		77		/* UNOFFICIAL net disk proto */
+
+#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
+ */
+#define	IPPORT_TFTP		69
+#define	IPPORT_RJE		77
+#define	IPPORT_FINGER		79
+#define	IPPORT_TTYLINK		87
+#define	IPPORT_SUPDUP		95
+
+/*
+ * UNIX TCP sockets
+ */
+#define	IPPORT_EXECSERVER	512
+#define	IPPORT_LOGINSERVER	513
+#define	IPPORT_CMDSERVER	514
+#define	IPPORT_EFSSERVER	520
+
+/*
+ * UNIX UDP sockets
+ */
+#define	IPPORT_BIFFUDP		512
+#define	IPPORT_WHOSERVER	513
+#define	IPPORT_ROUTESERVER	520	/* 520+1 also used */
+
+/*
+ * Ports < IPPORT_RESERVED are reserved for
+ * privileged processes (e.g. root).
+ */
+#define	IPPORT_RESERVED		1024
+
+/*
+ * Link numbers
+ */
+#define	IMPLINK_IP		155
+#define	IMPLINK_LOWEXPER	156
+#define	IMPLINK_HIGHEXPER	158
+
+/*
+ * Internet address (old style... should be updated)
+ */
+struct in_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_addr;
+	} S_un;
+#define	s_addr	S_un.S_addr	/* 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_impno	S_un.S_un_b.s_b4	/* imp # */
+#define	s_lh	S_un.S_un_b.s_b3	/* logical host */
+};
+
+/*
+ * Definitions of bits in internet address integers.
+ */
+#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_CLASSB(i)		((((long)(i))&0xc0000000)==0x80000000)
+#define	IN_CLASSB_NET		0xffff0000
+#define	IN_CLASSB_NSHIFT	16
+#define	IN_CLASSB_HOST		0x0000ffff
+
+#define	IN_CLASSC(i)		((((long)(i))&0xc0000000)==0xc0000000)
+#define	IN_CLASSC_NET		0xffffff00
+#define	IN_CLASSC_NSHIFT	8
+#define	IN_CLASSC_HOST		0x000000ff
+
+#define	INADDR_ANY	0x00000000
+
+/*
+ * Socket address, internet style.
+ */
+struct sockaddr_in {
+	short	sin_family;
+	u_short	sin_port;
+	struct	in_addr sin_addr;
+	char	sin_zero[8];
+};
+
+#if !defined(vax)
+/*
+ * Macros for number representation conversion.
+ */
+#define	ntohl(x)	(x)
+#define	ntohs(x)	(x)
+#define	htonl(x)	(x)
+#define	htons(x)	(x)
+#endif
+
+#ifdef KERNEL
+extern	struct domain inetdomain;
+extern	struct protosw inetsw[];
+#endif