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 part of adns, which is
   7  *    Copyright (C) 1997-2000,2003,2006,2014  Ian Jackson
   8  *    Copyright (C) 1999-2000,2003,2006  Tony Finch
   9  *    Copyright (C) 1991 Massachusetts Institute of Technology
  10  *  (See the file INSTALL for full details.)
  11  *
  12  *  This program is free software; you can redistribute it and/or modify
  13  *  it under the terms of the GNU General Public License as published by
  14  *  the Free Software Foundation; either version 3, or (at your option)
  15  *  any later version.
  16  *
  17  *  This program is distributed in the hope that it will be useful,
  18  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  *  GNU General Public License for more details.
  21  *
  22  *  You should have received a copy of the GNU General Public License
  23  *  along with this program; if not, write to the Free Software Foundation.
  24  */
  25
  26 #ifndef ADNSHOST_H_INCLUDED
  27 #define ADNSHOST_H_INCLUDED
  28
  29 #include <stdlib.h>
  30 #include <stdio.h>
  31 #include <string.h>
  32 #include <errno.h>
  33 #include <signal.h>
  34 #include <stdarg.h>
  35 #include <stdlib.h>
  36 #include <assert.h>
  37 #include <time.h>
  38
  39 #include <sys/types.h>
  40 #include <sys/socket.h>
  41 #include <netinet/in.h>
  42 #include <arpa/inet.h>
  43
  44 #define ADNS_FEATURE_MANYAF
  45 #include "config.h"
  46 #include "adns.h"
  47 #include "dlist.h"
  48 #include "client.h"
  49
  50 #ifdef ADNS_REGRESS_TEST
  51 # include "hredirect.h"
  52 #endif
  53
  54 /* declarations related to option processing */
  55
  56 struct optioninfo;
  57 typedef void optfunc(const struct optioninfo *oi, const char *arg, const char *arg2);
  58
  59 struct optioninfo {
  60   enum oi_type {
  61     ot_end, ot_desconly,
  62     ot_flag, ot_value, ot_func, ot_funcarg, ot_funcarg2
  63   } type;
  64   const char *desc;
  65   const char *sopt, *lopt;
  66   int *storep, value;
  67   optfunc *func;
  68   const char *argdesc, *argdesc2;
  69 };
  70
  71 enum ttlmode { tm_none, tm_rel, tm_abs };
  72 enum outputformat { fmt_default, fmt_simple, fmt_inline, fmt_asynch };
  73
  74 struct perqueryflags_remember {
  75   int show_owner, show_type, show_cname;
  76   int ttl;
  77 };
  78
  79 extern int ov_env, ov_pipe, ov_asynch;
  80 extern int ov_verbose;
  81 extern adns_rrtype ov_type;
  82 extern int ov_search, ov_qc_query, ov_qc_anshost, ov_qc_cname;
  83 extern int ov_tcp, ov_cname, ov_afflags, ov_v6map, ov_format;
  84 extern char *ov_id;
  85 extern struct perqueryflags_remember ov_pqfr;
  86
  87 extern optfunc of_config, of_version, of_help, of_type, of_ptr, of_reverse;
  88 extern optfunc of_asynch_id, of_cancel_id;
  89
  90 const struct optioninfo *opt_findl(const char *opt);
  91 const struct optioninfo *opt_finds(const char **optp);
  92 void opt_do(const struct optioninfo *oip, int invert, const char *arg, const char *arg2);
  93
  94 /* declarations related to query processing */
  95
  96 struct query_node {
  97   struct query_node *next, *back;
  98   struct perqueryflags_remember pqfr;
  99   char *id, *owner;
 100   adns_query qu;
 101 };
 102
 103 extern adns_state ads;
 104 extern struct outstanding_list { struct query_node *head, *tail; } outstanding;
 105
 106 void ensure_adns_init(void);
 107 void query_do(const char *domain);
 108 void query_done(struct query_node *qun, adns_answer *answer);
 109
 110 void type_info(adns_rrtype type, const char **typename_r,
 111                const void *datap, char **data_r);
 112   /* wrapper for adns_rr_info which uses a static buffer to provide
 113    * *typename_r for adns_r_unknown */
 114
 115
 116 /* declarations related to main program and useful utility functions */
 117
 118 void sysfail(const char *what, int errnoval) NONRETURNING;
 119 void usageerr(const char *what, ...) NONRETURNPRINTFFORMAT(1,2);
 120 void outerr(void) NONRETURNING;
 121
 122 void *xmalloc(size_t sz);
 123 char *xstrsave(const char *str);
 124
 125 extern int rcode;
 126 extern const char *config_text; /* 0 => use defaults */
 127
 128 #endif