1 files changed, 77 insertions, 0 deletions
diff --git a/src/libip/ip.h b/src/libip/ip.h
new file mode 100644
index 00000000..aae565c0
--- /dev/null
+++ b/src/libip/ip.h
@@ -0,0 +1,77 @@
+#pragma	src	"/sys/src/libip"
+#pragma	lib	"libip.a"
+
+enum 
+{
+	IPaddrlen=	16,
+	IPv4addrlen=	4,
+	IPv4off=	12,
+	IPllen=		4,
+};
+
+/*
+ *  for reading /net/ipifc
+ */
+typedef struct Ipifc Ipifc;
+typedef struct Ipifcs Ipifcs;
+
+struct Ipifc
+{
+	char	dev[64];
+	uchar	ip[IPaddrlen];
+	uchar	mask[IPaddrlen];
+	uchar	net[IPaddrlen];		/* ip & mask */
+	Ipifc	*next;
+};
+
+struct Ipifcs
+{
+	Ipifc *first;
+	Ipifc *last;
+};
+
+/*
+ *  user level udp headers
+ */
+enum 
+{
+	Udphdrsize=	36,	/* size of a Udphdr */
+};
+
+typedef struct Udphdr Udphdr;
+struct Udphdr
+{
+	uchar	raddr[IPaddrlen];	/* remote address and port */
+	uchar	laddr[IPaddrlen];	/* local address and port */
+	uchar	rport[2];
+	uchar	lport[2];
+};
+
+uchar*	defmask(uchar*);
+void	maskip(uchar*, uchar*, uchar*);
+int	eipconv(va_list*, Fconv*);
+ulong	parseip(uchar*, char*);
+ulong	parseipmask(uchar*, char*);
+int	parseether(uchar*, char*);
+int	myipaddr(uchar*, char*);
+int	myetheraddr(uchar*, char*);
+
+void	readipifc(char*, Ipifcs*);
+
+void	hnputl(void*, uint);
+void	hnputs(void*, ushort);
+uint	nhgetl(void*);
+ushort	nhgets(void*);
+
+#define	ipcmp(x, y) memcmp(x, y, IPaddrlen)
+#define	ipmove(x, y) memmove(x, y, IPaddrlen)
+
+extern uchar IPv4bcast[IPaddrlen];
+extern uchar IPv4bcastobs[IPaddrlen];
+extern uchar IPv4allsys[IPaddrlen];
+extern uchar IPv4allrouter[IPaddrlen];
+extern uchar IPnoaddr[IPaddrlen];
+extern uchar v4prefix[IPaddrlen];
+extern uchar IPallbits[IPaddrlen];
+
+#define CLASS(p) ((*(uchar*)(p))>>6)