-/**/
+/*
+ * Copyright (C)1998 Ian Jackson.
+ * This version provided for review and comment only.
+ *
+ * $Id$
+ */
+/*
+ * This file is part of adns, which is Copyright (C) 1997, 1998 Ian Jackson
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
#ifndef ADNS_H_INCLUDED
#define ADNS_H_INCLUDED
adns__rrt_typemask= 0x0ffff,
adns__qtf_deref= 0x10000, /* dereference domains and perhaps produce extra data */
adns__qtf_mail822= 0x20000, /* make mailboxes be in RFC822 rcpt field format */
- adns__qtf_masterfmt= 0x80000, /* convert RRs to master file format, return as str */
adns_r_none= 0,
adns_r_a= 1,
- adns_r_a_mf= adns_r_a|adns__qtf_masterfmt,
adns_r_ns_raw= 2,
adns_r_ns= adns_r_ns_raw|adns__qtf_deref,
- adns_r_ns_mf= adns_r_ns_raw|adns__qtf_masterfmt,
adns_r_cname= 5,
- adns_r_cname_mf= adns_r_cname|adns__qtf_masterfmt,
adns_r_soa_raw= 6,
adns_r_soa= adns_r_soa_raw|adns__qtf_mail822,
- adns_r_soa_mf= adns_r_soa_raw|adns__qtf_masterfmt,
-
- adns_r_null= 10,
- adns_r_null_mf= adns_r_null|adns__qtf_masterfmt,
adns_r_ptr_raw= 12,
adns_r_ptr= adns_r_ptr_raw|adns__qtf_deref,
- adns_r_ptr_mf= adns_r_ptr_raw|adns__qtf_masterfmt,
adns_r_hinfo= 13,
- adns_r_hinfo_mf= adns_r_hinfo|adns__qtf_masterfmt,
adns_r_mx_raw= 15,
adns_r_mx= adns_r_mx_raw|adns__qtf_deref,
- adns_r_mx_mf= adns_r_mx_raw|adns__qtf_masterfmt,
adns_r_txt= 16,
- adns_r_txt_mf= adns_r_txt|adns__qtf_masterfmt,
adns_r_rp_raw= 17,
adns_r_rp= adns_r_rp_raw|adns__qtf_mail822,
- adns_r_rp_mf= adns_r_rp_raw|adns__qtf_masterfmt
} adns_rrtype;
* not usually legal in domain names will be quoted as \X
* (if the character is 33-126 except \ and ") or \DDD.
*
- * _qtf_anyquote is ignored for _mf queries.
- *
* Do not ask for _raw records containing mailboxes without
* specifying _qf_anyquote.
*/
adns_s_timeout,
adns_s_nolocalmem,
adns_s_allservfail,
- adns_s_serverfailure,
+ adns_s_servfail,
adns_s_notimplemented,
adns_s_refused,
adns_s_reasonunknown,
adns_s_norecurse,
adns_s_serverfaulty,
adns_s_unknownreply,
+ adns_s_invaliddata,
adns_s_max_tempfail= 99,
adns_s_inconsistent, /* PTR gives domain whose A does not match */
adns_s_cname, /* CNAME found where data eg A expected (not if _qf_loosecname) */
+ adns_s_invalidanswerdomain,
/* fixme: implement _s_cname */
adns_s_max_remotemisconfig= 199,
adns_s_nxdomain,
- adns_s_norecord,
- adns_s_invaliddomain
+ adns_s_nodata,
+ adns_s_invalidquerydomain,
+ adns_s_domaintoolong,
} adns_status;
typedef struct {
typedef struct {
adns_status status;
char *cname; /* always NULL if query was for CNAME records */
- adns_rrtype type;
- int nrrs;
+ adns_rrtype type; /* guaranteed to be same as in query */
+ int nrrs, rrsz;
union {
+ void *untyped;
+ unsigned char *bytes;
+ char *(*str); /* ns_raw, cname, ptr, ptr_raw */
+ char *(**manystr); /* txt (list is null-terminated) */
struct in_addr *inaddr; /* a */
- char *(*str); /* ns_raw, cname, ptr, ptr_raw, txt, <any>_mf */
adns_rr_dmaddr *dmaddr; /* ns */
adns_rr_strpair *strpair; /* hinfo, rp, rp_raw */
adns_rr_intdmaddr *intdmaddr; /* mx */
adns_rr_intstr *intstr; /* mx_raw */
adns_rr_soa *soa; /* soa, soa_raw */
- /* NULL is empty */
} rrs;
} adns_answer;
* Must always be non-null pointer;
* If *query_io is 0 to start with then any query may be returned;
* If *query_io is !0 adns_query then only that query may be returned.
+ * If the call is successful, *query_io, *answer_r, and *context_r
+ * will all be set.
* Errors:
* Return values are 0 or an errno value;
* Seriously fatal system errors (eg, failure to create sockets,
* type will always be the type requested;
* If no (appropriate) requests are done adns_check returns EWOULDBLOCK;
* If no (appropriate) requests are outstanding adns_query and adns_wait return ESRCH;
- * If malloc failure occurs during internal allocation or processing
- * ands_check and _wait set *answer to 0.
*/
int adns_init(adns_state *newstate_r, adns_initflags flags, FILE *diagfile/*0=>stderr*/);
void **context_r);
/* Might return EINTR - if so, try again */
-void adns_cancel(adns_state ads, adns_query query);
+void adns_cancel(adns_query query);
int adns_finish(adns_state);
+/* You may call this even if you have queries outstanding;
+ * they will be cancelled.
+ */
int adns_callback(adns_state, int maxfd, const fd_set *readfds, const fd_set *writefds,
const fd_set *exceptfds);
* }
*/
+adns_status adns_rr_info(adns_rrtype type,
+ const char **rrtname_r, const char **fmtname_r,
+ int *len_r,
+ const void *datap, char **data_r);
+/* Gets information in human-readable (but non-i18n) form
+ * for eg debugging purposes. type must be specified,
+ * and the official name of the corresponding RR type will
+ * be returned in *rrtname_r, and information about the processing
+ * style in *fmtname_r. The length of the table entry in an answer
+ * for that type will be returned in in *len_r.
+ * Any or all of rrtname_r, fmtname_r and len_r may be 0.
+ * If fmtname_r is non-null then *fmtname_r may be
+ * null on return, indicating that no special processing is
+ * involved.
+ *
+ * data_r be must be non-null iff datap is. In this case
+ * *data_r will be set to point to a human-readable text
+ * string representing the RR data. The text will have
+ * been obtained from malloc() and must be freed by the caller.
+ *
+ * Usually this routine will succeed. Possible errors include:
+ * adns_s_nomemory
+ * adns_s_notimplemented (RR type not known)
+ * adns_s_invaliddata (*datap contained garbage)
+ * If an error occurs then no memory has been allocated,
+ * and *rrtname_r, *fmtname_r, *len_r and *data_r are undefined.
+ */
+
+const char *adns_strerror(adns_status st);
+
#endif
~ianmdlvl / adns.git / blobdiff