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resolv.h
/* * Copyright (c) 1983, 1987, 1989 * 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. * 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) 1996-1999 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 * $BINDId: resolv.h,v 8.31 2000/03/30 20:16:50 vixie Exp $ */ #ifndef _RESOLV_H_ #define _RESOLV_H_ #include <sys/cdefs.h> #include <sys/param.h> #include <sys/types.h> #include <stdio.h> #include <netinet/in.h> #include <arpa/nameser.h> #include <bits/types/res_state.h> /* * Global defines and variables for resolver stub. */ #define LOCALDOMAINPARTS 2 /* min levels in name that is "local" */ #define RES_TIMEOUT 5 /* min. seconds between retries */ #define RES_MAXNDOTS 15 /* should reflect bit field size */ #define RES_MAXRETRANS 30 /* only for resolv.conf/RES_OPTIONS */ #define RES_MAXRETRY 5 /* only for resolv.conf/RES_OPTIONS */ #define RES_DFLRETRY 2 /* Default #/tries. */ #define RES_MAXTIME 65535 /* Infinity, in milliseconds. */ #define nsaddr nsaddr_list[0] /* for backward compatibility */ /* * 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 19991006 /* * 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 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" */ }; /* * 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 \ __glibc_macro_warning ("RES_AAONLY is deprecated") 0x00000004 #define RES_USEVC 0x00000008 /* use virtual circuit */ #define RES_PRIMARY \ __glibc_macro_warning ("RES_PRIMARY is deprecated") 0x00000010 #define RES_IGNTC 0x00000020 /* ignore trucation 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_NOALIASES 0x00001000 /* shuts off HOSTALIASES feature */ #define RES_ROTATE 0x00004000 /* rotate ns list after each query */ #define RES_NOCHECKNAME \ __glibc_macro_warning ("RES_NOCHECKNAME is deprecated") 0x00008000 #define RES_KEEPTSIG \ __glibc_macro_warning ("RES_KEEPTSIG is deprecated") 0x00010000 #define RES_BLAST \ __glibc_macro_warning ("RES_BLAST is deprecated") 0x00020000 #define RES_USE_EDNS0 0x00100000 /* Use EDNS0. */ #define RES_SNGLKUP 0x00200000 /* one outstanding request at a time */ #define RES_SNGLKUPREOP 0x00400000 /* -"-, but open new socket for each request */ #define RES_USE_DNSSEC 0x00800000 /* use DNSSEC using OK bit in OPT */ #define RES_NOTLDQUERY 0x01000000 /* Do not look up unqualified name as a TLD. */ #define RES_NORELOAD 0x02000000 /* No automatic configuration reload. */ #define RES_TRUSTAD 0x04000000 /* Request AD bit, keep it in responses. */ #define RES_NOAAAA 0x08000000 /* Suppress AAAA queries. */ #define RES_STRICTERR 0x10000000 /* Report more DNS errors as errors. */ #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 */ /* Things involving an internal (static) resolver context. */ __BEGIN_DECLS extern struct __res_state *__res_state(void) __attribute__ ((__const__)); __END_DECLS #define _res (*__res_state()) #define fp_nquery __fp_nquery #define fp_query __fp_query #define hostalias __hostalias #define p_query __p_query #define res_close __res_close #define res_init __res_init #define res_isourserver __res_isourserver #ifdef _LIBC # define __RESOLV_DEPRECATED # define __RESOLV_DEPRECATED_MSG(msg) #else # define __RESOLV_DEPRECATED __attribute_deprecated__ # define __RESOLV_DEPRECATED_MSG(msg) __attribute_deprecated_msg__ (msg) #endif __BEGIN_DECLS void fp_nquery (const unsigned char *, int, FILE *) __THROW __RESOLV_DEPRECATED; void fp_query (const unsigned char *, FILE *) __THROW __RESOLV_DEPRECATED; const char * hostalias (const char *) __THROW __RESOLV_DEPRECATED_MSG ("use getaddrinfo instead"); void p_query (const unsigned char *) __THROW __RESOLV_DEPRECATED; void res_close (void) __THROW; int res_init (void) __THROW; int res_isourserver (const struct sockaddr_in *) __THROW __RESOLV_DEPRECATED; int res_mkquery (int, const char *, int, int, const unsigned char *, int, const unsigned char *, unsigned char *, int) __THROW; int res_query (const char *, int, int, unsigned char *, int) __THROW; int res_querydomain (const char *, const char *, int, int, unsigned char *, int) __THROW; int res_search (const char *, int, int, unsigned char *, int) __THROW; int res_send (const unsigned char *, int, unsigned char *, int) __THROW; __END_DECLS #define b64_ntop __b64_ntop #define b64_pton __b64_pton #define dn_count_labels __dn_count_labels #define fp_resstat __fp_resstat #define loc_aton __loc_aton #define loc_ntoa __loc_ntoa #define p_cdname __p_cdname #define p_cdnname __p_cdnname #define p_class __p_class #define p_fqname __p_fqname #define p_fqnname __p_fqnname #define p_option __p_option #define p_time __p_time #define p_type __p_type #define p_rcode __p_rcode #define putlong __putlong #define putshort __putshort #define res_hostalias __res_hostalias #define res_nameinquery __res_nameinquery #define res_nclose __res_nclose #define res_ninit __res_ninit #define res_queriesmatch __res_queriesmatch #define res_randomid __res_randomid #define sym_ntop __sym_ntop #define sym_ntos __sym_ntos #define sym_ston __sym_ston __BEGIN_DECLS int res_hnok (const char *) __THROW; int res_ownok (const char *) __THROW; int res_mailok (const char *) __THROW; int res_dnok (const char *) __THROW; int sym_ston (const struct res_sym *, const char *, int *) __THROW __RESOLV_DEPRECATED; const char * sym_ntos (const struct res_sym *, int, int *) __THROW __RESOLV_DEPRECATED; const char * sym_ntop (const struct res_sym *, int, int *) __THROW __RESOLV_DEPRECATED; int b64_ntop (const unsigned char *, size_t, char *, size_t) __THROW; int b64_pton (char const *, unsigned char *, size_t) __THROW; int loc_aton (const char *__ascii, unsigned char *__binary) __THROW __RESOLV_DEPRECATED; const char * loc_ntoa (const unsigned char *__binary, char *__ascii) __THROW __RESOLV_DEPRECATED; int dn_skipname (const unsigned char *, const unsigned char *) __THROW; void putlong (uint32_t, unsigned char *) __THROW __RESOLV_DEPRECATED_MSG ("use NS_PUT16 instead"); void putshort (uint16_t, unsigned char *) __THROW __RESOLV_DEPRECATED_MSG ("use NS_PUT32 instead"); const char * p_class (int) __THROW __RESOLV_DEPRECATED; const char * p_time (uint32_t) __THROW __RESOLV_DEPRECATED; const char * p_type (int) __THROW __RESOLV_DEPRECATED; const char * p_rcode (int) __THROW __RESOLV_DEPRECATED; const unsigned char * p_cdnname (const unsigned char *, const unsigned char *, int, FILE *) __THROW __RESOLV_DEPRECATED; const unsigned char * p_cdname (const unsigned char *, const unsigned char *, FILE *) __THROW __RESOLV_DEPRECATED; const unsigned char * p_fqnname (const unsigned char *__cp, const unsigned char *__msg, int, char *, int) __THROW __RESOLV_DEPRECATED; const unsigned char * p_fqname (const unsigned char *, const unsigned char *, FILE *) __THROW __RESOLV_DEPRECATED; const char * p_option (unsigned long __option) __THROW __RESOLV_DEPRECATED; int dn_count_labels (const char *) __THROW __RESOLV_DEPRECATED; int dn_comp (const char *, unsigned char *, int, unsigned char **, unsigned char **) __THROW; int dn_expand (const unsigned char *, const unsigned char *, const unsigned char *, char *, int) __THROW; unsigned int res_randomid (void) __THROW __RESOLV_DEPRECATED_MSG ("use getentropy instead"); int res_nameinquery (const char *, int, int, const unsigned char *, const unsigned char *) __THROW __RESOLV_DEPRECATED; int res_queriesmatch (const unsigned char *, const unsigned char *, const unsigned char *, const unsigned char *) __THROW __RESOLV_DEPRECATED; /* Things involving a resolver context. */ int res_ninit (res_state) __THROW; void fp_resstat (const res_state, FILE *) __THROW __RESOLV_DEPRECATED; const char * res_hostalias (const res_state, const char *, char *, size_t) __THROW __RESOLV_DEPRECATED_MSG ("use getaddrinfo instead"); int res_nquery (res_state, const char *, int, int, unsigned char *, int) __THROW; int res_nsearch (res_state, const char *, int, int, unsigned char *, int) __THROW; int res_nquerydomain (res_state, const char *, const char *, int, int, unsigned char *, int) __THROW; int res_nmkquery (res_state, int, const char *, int, int, const unsigned char *, int, const unsigned char *, unsigned char *, int) __THROW; int res_nsend (res_state, const unsigned char *, int, unsigned char *, int) __THROW; void res_nclose (res_state) __THROW; __END_DECLS #endif /* !_RESOLV_H_ */
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