386BSD 0.1 development

[unix-history] / usr / src / include / resolv.h

diff --git a/usr/src/include/resolv.h b/usr/src/include/resolv.h
index 18b36df..f798b76 100644 (file)
--- a/usr/src/include/resolv.h
+++ b/usr/src/include/resolv.h
@@ -1,42 +1,120 @@
 /*
 /*

- * Copyright (c) 1983 Regents of the University of California.
- * All rights reserved.  The Berkeley software License Agreement
- * specifies the terms and conditions for redistribution.
+ * Copyright (c) 1983, 1987, 1989 The Regents of the University of California.
+ * All rights reserved.

  *
  *

- *     @(#)resolv.h    5.1 (Berkeley) %G%
+ * 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.
+ *
+ *     @(#)resolv.h    5.15 (Berkeley) 4/3/91

  */
 
  */
 

+#ifndef _RESOLV_H_
+#define        _RESOLV_H_
+

 /*
 /*

- * Global defines and variables for resolver stub.
+ * Resolver configuration file.
+ * Normally not present, but may contain the address of the
+ * inital name server(s) to query and the domain search list.

  */
 
  */
 

+#ifndef _PATH_RESCONF
+#define _PATH_RESCONF        "/etc/resolv.conf"
+#endif
+

 /*
 /*

- * Resolver configuration file. Contains the address of the
- * inital name server to query and the default domain for
- * non fully qualified domain names.
+ * Global defines and variables for resolver stub.

  */
  */

-#define CONFFILE "/usr/local/lib/resolv.conf"
+#define        MAXNS                   3       /* max # name servers we'll track */
+#define        MAXDFLSRCH              3       /* # default domain levels to try */
+#define        MAXDNSRCH               6       /* max # domains in search path */
+#define        LOCALDOMAINPARTS        2       /* min levels in name that is "local" */
+
+#define        RES_TIMEOUT             5       /* min. seconds between retries */

 
 struct state {
 
 struct state {

-       int     retrans;                /* retransmition time interval */
+       int     retrans;                /* retransmition time interval */

        int     retry;                  /* number of times to retransmit */
        int     retry;                  /* number of times to retransmit */

-       int     options;                /* option flags - see below. */
-       struct  sockaddr_in nsaddr;     /* address of name server */
+       long    options;                /* option flags - see below. */
+       int     nscount;                /* number of name servers */
+       struct  sockaddr_in nsaddr_list[MAXNS]; /* address of name server */
+#define        nsaddr  nsaddr_list[0]          /* for backward compatibility */

        u_short id;                     /* current packet id */
        char    defdname[MAXDNAME];     /* default domain */
        u_short id;                     /* current packet id */
        char    defdname[MAXDNAME];     /* default domain */

+       char    *dnsrch[MAXDNSRCH+1];   /* components of domain to search */

 };
 
 /*
  * Resolver options
  */
 };
 
 /*
  * Resolver options
  */

-#define RES_INIT       0x001           /* address initialized */
-#define RES_DEBUG      0x002           /* print debug messages */
-#define RES_AAONLY     0x004           /* authoritative answers only */
-#define RES_USEVC      0x008           /* use virtual circuit */
-#define RES_PRIMARY    0x010           /* query primary server only */
-#define RES_IGNTC      0x020           /* ignore trucation errors */
-#define RES_RECURSE    0x040           /* recursion desired */
-#define RES_DEFNAMES   0x080           /* use default domain name */
+#define RES_INIT       0x0001          /* address initialized */
+#define RES_DEBUG      0x0002          /* print debug messages */
+#define RES_AAONLY     0x0004          /* authoritative answers only */
+#define RES_USEVC      0x0008          /* use virtual circuit */
+#define RES_PRIMARY    0x0010          /* query primary server only */
+#define RES_IGNTC      0x0020          /* ignore trucation errors */
+#define RES_RECURSE    0x0040          /* recursion desired */
+#define RES_DEFNAMES   0x0080          /* use default domain name */
+#define RES_STAYOPEN   0x0100          /* Keep TCP socket open */
+#define RES_DNSRCH     0x0200          /* search up local domain tree */
+
+#define RES_DEFAULT    (RES_RECURSE | RES_DEFNAMES | RES_DNSRCH)

 
 extern struct state _res;
 
 extern struct state _res;

-extern char *p_cdname(), *p_rr(), *p_type(), *p_class();
+
+#include <sys/cdefs.h>
+#include <stdio.h>
+
+/* Private routines shared between libc/net, named, nslookup and others. */
+#define        dn_skipname     __dn_skipname
+#define        fp_query        __fp_query
+#define        hostalias       __hostalias
+#define        putlong         __putlong
+#define        putshort        __putshort
+#define p_class                __p_class
+#define p_time         __p_time
+#define p_type         __p_type
+__BEGIN_DECLS
+int     __dn_skipname __P((const u_char *, const u_char *));
+void    __fp_query __P((char *, FILE *));
+char   *__hostalias __P((const char *));
+void    __putlong __P((u_long, u_char *));
+void    __putshort __P((u_short, u_char *));
+char   *__p_class __P((int));
+char   *__p_time __P((u_long));
+char   *__p_type __P((int));
+
+int     dn_comp __P((const u_char *, u_char *, int, u_char **, u_char **));
+int     dn_expand __P((const u_char *, const u_char *, const u_char *,
+               u_char *, int));
+int     res_init __P((void));
+int     res_mkquery __P((int, const char *, int, int, const char *, int,
+               const struct rrec *, char *, int));
+int     res_send __P((const char *, int, char *, int));
+__END_DECLS
+
+#endif /* !_RESOLV_H_ */