diff options
Diffstat (limited to 'newlib/libc/sys/linux/include/resolv.h')
| -rw-r--r-- | newlib/libc/sys/linux/include/resolv.h | 319 |
1 files changed, 319 insertions, 0 deletions
diff --git a/newlib/libc/sys/linux/include/resolv.h b/newlib/libc/sys/linux/include/resolv.h new file mode 100644 index 000000000..1114f2d92 --- /dev/null +++ b/newlib/libc/sys/linux/include/resolv.h @@ -0,0 +1,319 @@ +/*- + * Copyright (c) 1983, 1987, 1989, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* + * Portions Copyright (c) 1996 by Internet Software Consortium. + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS + * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE + * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL + * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR + * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS + * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS + * SOFTWARE. + */ + +/* + * @(#)resolv.h 8.1 (Berkeley) 6/2/93 + * From Id: resolv.h,v 8.12 1998/04/28 19:36:46 halley Exp $ + * $FreeBSD: src/include/resolv.h,v 1.21 2002/03/23 17:24:53 imp Exp $ + */ + +#ifndef _RESOLV_H_ +#define _RESOLV_H_ + +#include <sys/param.h> +#include <sys/types.h> +#include <sys/cdefs.h> +#include <sys/socket.h> +#include <stdio.h> + +/* + * Revision information. This is the release date in YYYYMMDD format. + * It can change every day so the right thing to do with it is use it + * in preprocessor commands such as "#if (__RES > 19931104)". Do not + * compare for equality; rather, use it to determine whether your resolver + * is new enough to contain a certain feature. + */ + +#define __RES 19960801 + +/* + * Resolver configuration file. + * Normally not present, but may contain the address of the + * inital name server(s) to query and the domain search list. + */ + +#ifndef _PATH_RESCONF +#define _PATH_RESCONF "/etc/resolv.conf" +#endif + +/* + * Global defines and variables for resolver stub. + */ +#define MAXNS 3 /* max # name servers we'll track */ +#define MAXDFLSRCH 3 /* # default domain levels to try */ +#define MAXDNSRCH 6 /* max # domains in search path */ +#define LOCALDOMAINPARTS 2 /* min levels in name that is "local" */ + +#define RES_TIMEOUT 5 /* min. seconds between retries */ +#define MAXRESOLVSORT 10 /* number of net to sort on */ +#define RES_MAXNDOTS 15 /* should reflect bit field size */ + +struct __res_state { + int retrans; /* retransmition time interval */ + int retry; /* number of times to retransmit */ + u_long options; /* option flags - see below. */ + int nscount; /* number of name servers */ + struct sockaddr_in + nsaddr_list[MAXNS]; /* address of name server */ +#define nsaddr nsaddr_list[0] /* for backward compatibility */ + u_short id; /* current message id */ + char *dnsrch[MAXDNSRCH+1]; /* components of domain to search */ + char defdname[256]; /* default domain (deprecated) */ + u_long pfcode; /* RES_PRF_ flags - see below. */ + unsigned ndots:4; /* threshold for initial abs. query */ + unsigned nsort:4; /* number of elements in sort_list[] */ + char unused[3]; + struct { + struct in_addr addr; + u_int32_t mask; + } sort_list[MAXRESOLVSORT]; + char pad[72]; /* on an i386 this means 512b total */ +}; + +/* for INET6 */ +/* + * replacement of __res_state, separated to keep binary compatibility. + */ +struct __res_state_ext { + struct sockaddr_storage nsaddr_list[MAXNS]; + struct { + int af; /* address family for addr, mask */ + union { + struct in_addr ina; + struct in6_addr in6a; + } addr, mask; + } sort_list[MAXRESOLVSORT]; +}; + +/* + * Resolver options (keep these in synch with res_debug.c, please) + */ +#define RES_INIT 0x00000001 /* address initialized */ +#define RES_DEBUG 0x00000002 /* print debug messages */ +#define RES_AAONLY 0x00000004 /* authoritative answers only (!IMPL)*/ +#define RES_USEVC 0x00000008 /* use virtual circuit */ +#define RES_PRIMARY 0x00000010 /* query primary server only (!IMPL) */ +#define RES_IGNTC 0x00000020 /* ignore truncation errors */ +#define RES_RECURSE 0x00000040 /* recursion desired */ +#define RES_DEFNAMES 0x00000080 /* use default domain name */ +#define RES_STAYOPEN 0x00000100 /* Keep TCP socket open */ +#define RES_DNSRCH 0x00000200 /* search up local domain tree */ +#define RES_INSECURE1 0x00000400 /* type 1 security disabled */ +#define RES_INSECURE2 0x00000800 /* type 2 security disabled */ +#define RES_NOALIASES 0x00001000 /* shuts off HOSTALIASES feature */ +#define RES_USE_INET6 0x00002000 /* use/map IPv6 in gethostbyname() */ +#define RES_NOTLDQUERY 0x00004000 /* Don't query TLD names */ +/* KAME extensions: use higher bit to avoid conflict with ISC use */ +#define RES_USE_EDNS0 0x40000000 /* use EDNS0 */ + +#define RES_DEFAULT (RES_RECURSE | RES_DEFNAMES | RES_DNSRCH) + +/* + * Resolver "pfcode" values. Used by dig. + */ +#define RES_PRF_STATS 0x00000001 +#define RES_PRF_UPDATE 0x00000002 +#define RES_PRF_CLASS 0x00000004 +#define RES_PRF_CMD 0x00000008 +#define RES_PRF_QUES 0x00000010 +#define RES_PRF_ANS 0x00000020 +#define RES_PRF_AUTH 0x00000040 +#define RES_PRF_ADD 0x00000080 +#define RES_PRF_HEAD1 0x00000100 +#define RES_PRF_HEAD2 0x00000200 +#define RES_PRF_TTLID 0x00000400 +#define RES_PRF_HEADX 0x00000800 +#define RES_PRF_QUERY 0x00001000 +#define RES_PRF_REPLY 0x00002000 +#define RES_PRF_INIT 0x00004000 +/* 0x00008000 */ + +typedef enum { res_goahead, res_nextns, res_modified, res_done, res_error } + res_sendhookact; + +typedef res_sendhookact (*res_send_qhook)(struct sockaddr_in * const *ns, + const u_char **query, + int *querylen, + u_char *ans, + int anssiz, + int *resplen); + +typedef res_sendhookact (*res_send_rhook)(const struct sockaddr_in *ns, + const u_char *query, + int querylen, + u_char *ans, + int anssiz, + int *resplen); + +struct res_sym { + int number; /* Identifying number, like T_MX */ + char * name; /* Its symbolic name, like "MX" */ + char * humanname; /* Its fun name, like "mail exchanger" */ +}; + +extern struct __res_state _res; +/* for INET6 */ +extern struct __res_state_ext _res_ext; + +extern const struct res_sym __p_class_syms[]; +extern const struct res_sym __p_type_syms[]; + +/* Private routines shared between libc/net, named, nslookup and others. */ +#define res_hnok __res_hnok +#define res_ownok __res_ownok +#define res_mailok __res_mailok +#define res_dnok __res_dnok +#define sym_ston __sym_ston +#define sym_ntos __sym_ntos +#define sym_ntop __sym_ntop +#define b64_ntop __b64_ntop +#define b64_pton __b64_pton +#define loc_ntoa __loc_ntoa +#define loc_aton __loc_aton +#define fp_resstat __fp_resstat +#define p_query __p_query +#define dn_skipname __dn_skipname +#define fp_resstat __fp_resstat +#define fp_query __fp_query +#define fp_nquery __fp_nquery +#define hostalias __hostalias +#define putlong __putlong +#define putshort __putshort +#define p_class __p_class +#define p_time __p_time +#define p_type __p_type +#define p_query __p_query +#define p_cdnname __p_cdnname +#define p_section __p_section +#define p_cdname __p_cdname +#define p_fqnname __p_fqnname +#define p_fqname __p_fqname +#define p_option __p_option +#define p_secstodate __p_secstodate +#define dn_count_labels __dn_count_labels +#define dn_comp __dn_comp +#define dn_expand __dn_expand +#define res_init __res_init +#define res_randomid __res_randomid +#define res_query __res_query +#define res_search __res_search +#define res_querydomain __res_querydomain +#define res_mkquery __res_mkquery +#define res_send __res_send +#define res_isourserver __res_isourserver +#define res_nameinquery __res_nameinquery +#define res_queriesmatch __res_queriesmatch +#define res_close __res_close +#define res_opt __res_opt +#define res_mkupdate __res_mkupdate +#define res_mkupdrec __res_mkupdrec +#define res_freeupdrec __res_freeupdrec + +__BEGIN_DECLS +int res_hnok(const char *); +int res_ownok(const char *); +int res_mailok(const char *); +int res_dnok(const char *); +int sym_ston(const struct res_sym *, const char *, int *); +const char * sym_ntos(const struct res_sym *, int, int *); +const char * sym_ntop(const struct res_sym *, int, int *); +int b64_ntop(u_char const *, size_t, char *, size_t); +int b64_pton(char const *, u_char *, size_t); +int loc_aton(const char *, u_char *); +const char * loc_ntoa(const u_char *, char *); +int dn_skipname(const u_char *, const u_char *); +void fp_resstat(struct __res_state *, FILE *); +void fp_query(const u_char *, FILE *); +void fp_nquery(const u_char *, int, FILE *); +const char * hostalias(const char *); +void putlong(u_int32_t, u_char *); +void putshort(u_int16_t, u_char *); +const char * p_class(int); +const char * p_time(u_int32_t); +const char * p_type(int); +void p_query(const u_char *); +const u_char * p_cdnname(const u_char *, const u_char *, int, FILE *); +const u_char * p_cdname(const u_char *, const u_char *, FILE *); +const u_char * p_fqnname(const u_char *, const u_char *, + int, char *, int); +const u_char * p_fqname(const u_char *, const u_char *, FILE *); +const char * p_option(u_long); +char * p_secstodate(u_long); +int dn_count_labels(const char *); +int dn_comp(const char *, u_char *, int, u_char **, u_char **); +int dn_expand(const u_char *, const u_char *, const u_char *, + char *, int); +int res_init(void); +u_int res_randomid(void); +int res_query(const char *, int, int, u_char *, int); +int res_search(const char *, int, int, u_char *, int); +int res_querydomain(const char *, const char *, int, int, + u_char *, int); +int res_mkquery(int, const char *, int, int, const u_char *, + int, const u_char *, u_char *, int); +int res_send(const u_char *, int, u_char *, int); +int res_isourserver(const struct sockaddr_in *); +int res_nameinquery(const char *, int, int, + const u_char *, const u_char *); +int res_queriesmatch(const u_char *, const u_char *, + const u_char *, const u_char *); +void res_close(void); +int res_opt(int, u_char *, int, int); +const char * p_section(int, int); +/* XXX The following depend on the ns_updrec typedef in arpa/nameser.h */ +#ifdef _ARPA_NAMESER_H_ +int res_update(ns_updrec *); +int res_mkupdate(ns_updrec *, u_char *, int); +ns_updrec * res_mkupdrec(int, const char *, u_int, u_int, u_long); +void res_freeupdrec(ns_updrec *); +#endif +__END_DECLS + +#endif /* !_RESOLV_H_ */ |