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+/*-
+ * Copyright (c) 1980, 1983, 1988, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)netdb.h 8.1 (Berkeley) 6/2/93
+ * $Id$
+ * -
+ * Portions Copyright (c) 1993 by Digital Equipment Corporation.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies, and that
+ * the name of Digital Equipment Corporation not be used in advertising or
+ * publicity pertaining to distribution of the document or software without
+ * specific, written prior permission.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT
+ * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+ * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+ * SOFTWARE.
+ * -
+ * --Copyright--
+ */
+
+#ifndef _NETDB_H_
+#define _NETDB_H_
+
+#define _PATH_HEQUIV "/etc/hosts.equiv"
+#define _PATH_HOSTS "/etc/hosts"
+#define _PATH_NETWORKS "/etc/networks"
+#define _PATH_PROTOCOLS "/etc/protocols"
+#define _PATH_SERVICES "/etc/services"
+
+/*
+ * 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 an unsigned long -- probably a poor one.
+ */
+struct netent {
+ char *n_name; /* official name of net */
+ char **n_aliases; /* alias list */
+ int n_addrtype; /* net address type */
+ unsigned long n_net; /* network # */
+};
+
+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 # */
+};
+
+/*
+ * Error return codes from gethostbyname() and gethostbyaddr()
+ * (left in extern int h_errno).
+ */
+
+extern int h_errno;
+
+#define NETDB_INTERNAL -1 /* see errno */
+#define NETDB_SUCCESS 0 /* no problem */
+#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 */
+
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+void endhostent __P((void));
+void endnetent __P((void));
+void endprotoent __P((void));
+void endservent __P((void));
+struct hostent *gethostbyaddr __P((const char *, int, int));
+struct hostent *gethostbyname __P((const char *));
+struct hostent *gethostent __P((void));
+struct netent *getnetbyaddr __P((long, int)); /* u_long? */
+struct netent *getnetbyname __P((const char *));
+struct netent *getnetent __P((void));
+struct protoent *getprotobyname __P((const char *));
+struct protoent *getprotobynumber __P((int));
+struct protoent *getprotoent __P((void));
+struct servent *getservbyname __P((const char *, const char *));
+struct servent *getservbyport __P((int, const char *));
+struct servent *getservent __P((void));
+void herror __P((const char *));
+char *hstrerror __P((int));
+void sethostent __P((int));
+/* void sethostfile __P((const char *)); */
+void setnetent __P((int));
+void setprotoent __P((int));
+void setservent __P((int));
+__END_DECLS
+
+#endif /* !_NETDB_H_ */