| 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 | |
| 67 | struct perqueryflags_remember { |
| 68 | int show_owner, show_type, show_cname; |
| 69 | int ttl; |
| 70 | }; |
| 71 | |
| 72 | extern int ov_env, ov_pipe, ov_asynch; |
| 73 | extern int ov_verbose; |
| 74 | extern adns_rrtype ov_type; |
| 75 | extern int ov_search, ov_qc_query, ov_qc_anshost, ov_qc_cname; |
| 76 | extern int ov_tcp, ov_cname; |
| 77 | extern char *ov_id; |
| 78 | extern struct perqueryflags_remember ov_pqfr; |
| 79 | |
| 80 | extern optfunc of_help, of_type, of_ptr, of_asynch_id, of_cancel_id; |
| 81 | |
| 82 | const struct optioninfo *opt_findl(const char *opt); |
| 83 | const struct optioninfo *opt_finds(const char **optp); |
| 84 | void opt_do(const struct optioninfo *oip, const char *arg, int invert); |
| 85 | |
| 86 | /* declarations related to query processing */ |
| 87 | |
| 88 | struct query_node { |
| 89 | struct query_node *next, *back; |
| 90 | struct perqueryflags_remember pqfr; |
| 91 | char *id; |
| 92 | adns_query qu; |
| 93 | }; |
| 94 | |
| 95 | extern adns_state ads; |
| 96 | extern struct outstanding_list { struct query_node *head, *tail; } outstanding; |
| 97 | |
| 98 | void ensure_adns_init(void); |
| 99 | void query_do(const char *domain); |
| 100 | void query_done(struct query_node *qun, adns_answer *answer); |
| 101 | |
| 102 | void of_asynch_id(const struct optioninfo *oi, const char *arg); |
| 103 | void of_cancel_id(const struct optioninfo *oi, const char *arg); |
| 104 | |
| 105 | /* declarations related to main program and useful utility functions */ |
| 106 | |
| 107 | void sysfail(const char *what, int errnoval) NONRETURNING; |
| 108 | void usageerr(const char *what, ...) NONRETURNPRINTFFORMAT(1,2); |
| 109 | void outerr(void) NONRETURNING; |
| 110 | |
| 111 | void *xmalloc(size_t sz); |
| 112 | char *xstrsave(const char *str); |
| 113 | |
| 114 | extern int rcode; |
| 115 | |
| 116 | #endif |