mdw@git.distorted.org.uk Git - adns/blob - client/adnshost.h

   1 /*
   2  * adnshost.h
   3  * - useful general-purpose resolver client program, header file
   4  */
   5 /*
   6  *  This file is
   7  *    Copyright (C) 1997-1999 Ian Jackson <ian@davenant.greenend.org.uk>
   8  *
   9  *  It is part of adns, which is
  10  *    Copyright (C) 1997-1999 Ian Jackson <ian@davenant.greenend.org.uk>
  11  *    Copyright (C) 1999 Tony Finch <dot@dotat.at>
  12  *
  13  *  This program is free software; you can redistribute it and/or modify
  14  *  it under the terms of the GNU General Public License as published by
  15  *  the Free Software Foundation; either version 2, or (at your option)
  16  *  any later version.
  17  *
  18  *  This program is distributed in the hope that it will be useful,
  19  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  *  GNU General Public License for more details.
  22  *
  23  *  You should have received a copy of the GNU General Public License
  24  *  along with this program; if not, write to the Free Software Foundation,
  25  *  Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  26  */
  27
  28 #ifndef ADNSHOST_H_INCLUDED
  29 #define ADNSHOST_H_INCLUDED
  30
  31 #include <stdlib.h>
  32 #include <stdio.h>
  33 #include <string.h>
  34 #include <errno.h>
  35 #include <signal.h>
  36 #include <stdarg.h>
  37 #include <stdlib.h>
  38 #include <assert.h>
  39
  40 #include <sys/socket.h>
  41 #include <netinet/in.h>
  42 #include <arpa/inet.h>
  43
  44 #include "config.h"
  45 #include "adns.h"
  46 #include "dlist.h"
  47
  48 /* declarations related to option processing */
  49
  50 struct optioninfo;
  51 typedef void optfunc(const struct optioninfo *oi, const char *arg);
  52
  53 struct optioninfo {
  54   enum oi_type {
  55     ot_end, ot_desconly,
  56     ot_flag, ot_value, ot_func, ot_funcarg
  57   } type;
  58   const char *desc;
  59   const char *sopt, *lopt;
  60   int *storep, value;
  61   optfunc *func;
  62   const char *argdesc;
  63 };
  64
  65 enum ttlmode { tm_none, tm_rel, tm_abs };
  66 enum outputformat { fmt_default, fmt_simple, fmt_inline, fmt_asynch };
  67
  68 struct perqueryflags_remember {
  69   int show_owner, show_type, show_cname;
  70   int ttl;
  71 };
  72
  73 extern int ov_env, ov_pipe, ov_asynch;
  74 extern int ov_verbose;
  75 extern adns_rrtype ov_type;
  76 extern int ov_search, ov_qc_query, ov_qc_anshost, ov_qc_cname;
  77 extern int ov_tcp, ov_cname, ov_format;
  78 extern char *ov_id;
  79 extern struct perqueryflags_remember ov_pqfr;
  80
  81 extern optfunc of_help, of_type, of_ptr, of_asynch_id, of_cancel_id;
  82
  83 const struct optioninfo *opt_findl(const char *opt);
  84 const struct optioninfo *opt_finds(const char **optp);
  85 void opt_do(const struct optioninfo *oip, const char *arg, int invert);
  86
  87 /* declarations related to query processing */
  88
  89 struct query_node {
  90   struct query_node *next, *back;
  91   struct perqueryflags_remember pqfr;
  92   char *id;
  93   adns_query qu;
  94 };
  95
  96 extern adns_state ads;
  97 extern struct outstanding_list { struct query_node *head, *tail; } outstanding;
  98
  99 void ensure_adns_init(void);
 100 void query_do(const char *domain);
 101 void query_done(struct query_node *qun, adns_answer *answer);
 102
 103 void of_asynch_id(const struct optioninfo *oi, const char *arg);
 104 void of_cancel_id(const struct optioninfo *oi, const char *arg);
 105
 106 /* declarations related to main program and useful utility functions */
 107
 108 void sysfail(const char *what, int errnoval) NONRETURNING;
 109 void usageerr(const char *what, ...) NONRETURNPRINTFFORMAT(1,2);
 110 void outerr(void) NONRETURNING;
 111
 112 void *xmalloc(size_t sz);
 113 char *xstrsave(const char *str);
 114
 115 extern int rcode;
 116
 117 #endif