--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/h/netdb.h	Mon Apr 18 23:46:02 2005 +0900
@@ -0,0 +1,74 @@
+/* @(#)$Id$ */
+/*
+ * Copyright (c) 1980,1983,1988 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * provided that this notice is preserved and that due credit is given
+ * to the University of California at Berkeley. The name of the University
+ * may not be used to endorse or promote products derived from this
+ * software without specific prior written permission. This software
+ * is provided ``as is'' without express or implied warranty.
+ *
+ *	@(#)netdb.h	5.9 (Berkeley) 4/5/88
+ */
+
+/*
+ * Structures returned by network
+ * data base library.  All addresses
+ * are supplied in host order, and
+ * returned in network order (suitable
+ * for use in system calls).
+ */
+struct	hostent {
+	char	*h_name;	/* official name of host */
+	char	**h_aliases;	/* alias list */
+	int	h_addrtype;	/* host address type */
+	int	h_length;	/* length of address */
+	char	**h_addr_list;	/* list of addresses from name server */
+#define	h_addr	h_addr_list[0]	/* address, for backward compatiblity */
+};
+
+/*
+ * Assumption here is that a network number
+ * fits in 32 bits -- probably a poor one.
+ */
+struct	netent {
+	char		*n_name;	/* official name of net */
+	char		**n_aliases;	/* alias list */
+	int		n_addrtype;	/* net address type */
+#ifndef __alpha
+	unsigned long	n_net;		/* network # */
+#else
+	unsigned int	n_net;		/* network # */
+#endif
+};
+
+struct	servent {
+	char	*s_name;	/* official service name */
+	char	**s_aliases;	/* alias list */
+	int	s_port;		/* port # */
+	char	*s_proto;	/* protocol to use */
+};
+
+struct	protoent {
+	char	*p_name;	/* official protocol name */
+	char	**p_aliases;	/* alias list */
+	int	p_proto;	/* protocol # */
+};
+
+struct hostent	*gethostbyname(), *gethostbyaddr(), *gethostent();
+struct netent	*getnetbyname(), *getnetbyaddr(), *getnetent();
+struct servent	*getservbyname(), *getservbyport(), *getservent();
+struct protoent	*getprotobyname(), *getprotobynumber(), *getprotoent();
+
+/*
+ * Error return codes from gethostbyname() and gethostbyaddr()
+ * (left in extern int h_errno).
+ */
+
+#define	HOST_NOT_FOUND	1 /* Authoritative Answer Host not found */
+#define	TRY_AGAIN	2 /* Non-Authoritive Host not found, or SERVERFAIL */
+#define	NO_RECOVERY	3 /* Non recoverable errors, FORMERR, REFUSED, NOTIMP */
+#define	NO_DATA		4 /* Valid name, no data record of requested type */
+#define	NO_ADDRESS	NO_DATA		/* no address, look for MX record */