workbench/network/stacks/AROSTCP/bsdsocket/api/resolv.h

   1 /*
   2  * Copyright (c) 1983, 1987, 1989 The Regents of the University of California.
   3  * All rights reserved.
   4  * Copyright (C) 2005 - 2007 The AROS Dev Team
   5  *
   6  * Redistribution and use in source and binary forms are permitted
   7  * provided that: (1) source distributions retain this entire copyright
   8  * notice and comment, and (2) distributions including binaries display
   9  * the following acknowledgement:  ``This product includes software
  10  * developed by the University of California, Berkeley and its contributors''
  11  * in the documentation or other materials provided with the distribution
  12  * and in all advertising materials mentioning features or use of this
  13  * software. Neither the name of the University nor the names of its
  14  * contributors may be used to endorse or promote products derived
  15  * from this software without specific prior written permission.
  16  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
  17  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
  18  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  19  *
  20  *      @(#)resolv.h    5.10 (Berkeley) 6/1/90
  21  */
  22
  23 #ifndef API_RESOLV_H
  24 #define API_RESOLV_H
  25
  26 #include <arpa/nameser.h>
  27
  28 /*
  29  * Global defines and variables for resolver stub. (INSIDE AmiTCP/IP)
  30  */
  31 #define MAXDFLSRCH      3                   /* # default domain levels to try */
  32 #define LOCALDOMAINPARTS 2              /* min levels in name that is "local"*/
  33
  34 #define RES_TIMEOUT     5                   /* min. seconds between retries */
  35
  36 /*
  37  * defines to hook variables to the library base.
  38  */
  39 #define h_errno (*libPtr->hErrnoPtr)
  40 #define _res (libPtr->res_state)
  41 #define res_sock (libPtr->res_socket)
  42
  43 /*
  44  * Resolver options
  45  */
  46 #define RES_INIT        0x0001          /* address initialized */
  47 #ifndef AMITCP /* IMPORTANT TO HAVE RES_DEBUG NOT DEFINED IF NOT DEBUGGING */
  48 #define RES_DEBUG       0x0002          /* print debug messages */
  49 #endif
  50 #define RES_AAONLY      0x0004          /* authoritative answers only */
  51 #define RES_USEVC       0x0008          /* use virtual circuit */
  52 #define RES_PRIMARY     0x0010          /* query primary server only */
  53 #define RES_IGNTC       0x0020          /* ignore trucation errors */
  54 #define RES_RECURSE     0x0040          /* recursion desired */
  55 #define RES_DEFNAMES    0x0080          /* use default domain name */
  56 #define RES_STAYOPEN    0x0100          /* Keep TCP socket open */
  57 #define RES_DNSRCH      0x0200          /* search up local domain tree */
  58
  59 #define RES_DEFAULT     (RES_RECURSE | RES_DEFNAMES | RES_INIT)
  60
  61 #define AROSTCP_RES_DISABLED 0x8000       /* Implements MiamiDisallowDNS() */
  62
  63 /* Resolver state */
  64 struct state {
  65         int     retrans;                /* retransmition time interval */
  66         int     retry;                  /* number of times to retransmit */
  67         long    options;                /* option flags - see below. */
  68         u_short id;                     /* current packet id */
  69         ULONG   dbserial;
  70         char **dnsrch;
  71         struct in_addr *nsaddr_list;
  72 };
  73
  74 #ifndef AMITCP /* AmiTCP has this in the SocketBase */
  75 extern struct state _res;
  76 #endif
  77
  78 /*
  79  * Prototypes
  80  */
  81 extern int res_init(struct state *state);
  82 extern int res_update_db(struct state *state);
  83 extern void res_cleanup_db(struct state *state);
  84 extern int res_query(struct SocketBase *,
  85                      const char *, int, int, u_char *, int);
  86 extern int res_search(struct SocketBase *,
  87                       const char *, int, int, u_char *, int);
  88 extern int dn_expand(const u_char *, const u_char *, const u_char *, u_char *,
  89                      int);
  90 extern int dn_comp(const u_char *, u_char *, int, u_char **, u_char **);
  91 extern int __dn_skipname(const u_char *, const u_char *);
  92
  93 /* struct rrec; */
  94 extern int res_mkquery(struct SocketBase *,
  95                        int, const char *, int, int, const char *,
  96                        int, const struct rrec *, char *, int);
  97 extern int res_querydomain(struct SocketBase *, const char *, const char *,
  98                            int, int, u_char *, int);
  99 extern int res_send(struct SocketBase *, const char *, int, char *, int);
 100 extern void _res_close(struct SocketBase *);
 101
 102 extern u_short _getshort(u_char *);
 103 extern u_long _getlong(u_char *);
 104 extern void __putshort(u_short, u_char *);
 105 extern void __putlong(u_long, u_char *);
 106
 107 #endif /* API_RESOLV_H */