mirror of
https://review.haiku-os.org/haiku
synced 2024-11-23 07:18:40 +01:00
2ed1a36d4b
* Remove all functions and a number of constants that neither glibc nor musl define or support (and even FreeBSD does not declare a good number of these anymore.) * Redeclare the primary flags in terms of (1 << X) instead of raw 0x... for readability (the constants at the end do NOT match up to their definitions in glibc, musl, and BSDs!) * Remove usage of unneeded headers, and __BEGIN/END_DECLS. * Replace non-Haiku license headers with the ones from FreeBSD, which notably contain a removal of the advertising clause. ABIs remain unchanged, but a small set of applications that use these esoteric APIs may not compile anymore (are there any remaining?)
312 lines
12 KiB
C
312 lines
12 KiB
C
/*
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* Copyright 2009-2020, Haiku, Inc. All rights reserved.
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* Distributed under the terms of the MIT License.
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*/
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/*
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* Portions Copyright (c) 1996-1999 by Internet Software Consortium.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
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* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
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* CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
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* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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* SOFTWARE.
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*/
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/*
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* Copyright (c) 1983, 1987, 1989
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _RESOLV_H_
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#define _RESOLV_H_
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#include <stdint.h>
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#include <stdio.h>
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#include <arpa/nameser.h>
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#include <netinet/in.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define __RES 19991006
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struct res_sym {
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int number; /* Identifying number, like T_MX */
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const char *name; /* Its symbolic name, like "MX" */
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const char *humanname; /* Its fun name, like "mail exchanger" */
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};
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/*
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* Global defines and variables for resolver stub.
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*/
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#define MAXNS 3 /* max # name servers we'll track */
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#define MAXDFLSRCH 3 /* # default domain levels to try */
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#define MAXDNSRCH 6 /* max # domains in search path */
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#define LOCALDOMAINPARTS 2 /* min levels in name that is "local" */
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#define RES_TIMEOUT 5 /* min. seconds between retries */
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#define MAXRESOLVSORT 10 /* number of net to sort on */
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#define RES_MAXNDOTS 15 /* should reflect bit field size */
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#define RES_MAXRETRANS 30 /* only for resolv.conf/RES_OPTIONS */
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#define RES_MAXRETRY 5 /* only for resolv.conf/RES_OPTIONS */
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#define RES_DFLRETRY 2 /* Default #/tries. */
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#define RES_MAXTIME 65535 /* Infinity, in milliseconds. */
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struct __res_state {
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int retrans; /* retransmission time interval */
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int retry; /* number of times to retransmit */
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unsigned long options; /* option flags - see below. */
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int nscount; /* number of name servers */
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struct sockaddr_in
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nsaddr_list[MAXNS]; /* address of name server */
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unsigned short id; /* current message id */
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char *dnsrch[MAXDNSRCH+1]; /* components of domain to search */
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char defdname[256]; /* default domain (deprecated) */
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unsigned long pfcode; /* RES_PRF_ flags - see below. */
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unsigned ndots:4; /* threshold for initial abs. query */
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unsigned nsort:4; /* number of elements in sort_list[] */
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char unused[3];
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struct {
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struct in_addr addr;
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uint32_t mask;
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} sort_list[MAXRESOLVSORT];
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void* qhook; /* query hook */
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void* rhook; /* response hook */
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int res_h_errno; /* last one set for this context */
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int _vcsock; /* PRIVATE: for res_send VC i/o */
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unsigned int _flags; /* PRIVATE: see below */
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unsigned char _rnd[16]; /* PRIVATE: random state */
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unsigned int _pad; /* make _u 64 bit aligned */
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union {
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/* On an 32-bit arch this means 512b total. */
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char pad[56 - 4*sizeof (int) - 2*sizeof (void *)];
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struct {
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uint16_t nscount;
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uint16_t nstimes[MAXNS]; /* ms. */
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int nssocks[MAXNS];
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struct __res_state_ext *ext; /* extention for IPv6 */
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} _ext;
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} _u;
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};
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typedef struct __res_state *res_state;
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/* resolver flags; for _flags in __res_state. */
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#define RES_F_VC 0x00000001 /* socket is TCP */
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#define RES_F_CONN 0x00000002 /* socket is connected */
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#define RES_F_EDNS0ERR 0x00000004 /* EDNS0 caused errors */
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/* res_findzonecut2() options */
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#define RES_EXHAUSTIVE 0x00000001 /* always do all queries */
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#define RES_IPV4ONLY 0x00000002 /* IPv4 only */
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#define RES_IPV6ONLY 0x00000004 /* IPv6 only */
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/* resolver options */
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#define RES_INIT (1 << 0) /* address initialized */
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#define RES_DEBUG (1 << 1) /* print debug messages */
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#define RES_AAONLY (1 << 2) /* authoritative answers only (!IMPL)*/
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#define RES_USEVC (1 << 3) /* use virtual circuit */
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#define RES_PRIMARY (1 << 4) /* query primary server only (!IMPL) */
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#define RES_IGNTC (1 << 5) /* ignore trucation errors */
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#define RES_RECURSE (1 << 6) /* recursion desired */
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#define RES_DEFNAMES (1 << 7) /* use default domain name */
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#define RES_STAYOPEN (1 << 8) /* Keep TCP socket open */
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#define RES_DNSRCH (1 << 9) /* search up local domain tree */
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#define RES_INSECURE1 (1 << 10) /* type 1 security disabled */
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#define RES_INSECURE2 (1 << 11) /* type 2 security disabled */
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#define RES_NOALIASES (1 << 12) /* shuts off HOSTALIASES feature */
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#define RES_USE_INET6 (1 << 13) /* use/map IPv6 in gethostbyname() */
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#define RES_ROTATE (1 << 14) /* rotate ns list after each query */
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#define RES_NOCHECKNAME (1 << 15) /* do not check names for sanity. */
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#define RES_KEEPTSIG (1 << 16) /* do not strip TSIG records */
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#define RES_BLAST (1 << 17) /* blast all recursive servers */
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#define RES_NOTLDQUERY (1 << 20) /* don't unqualified name as a tld */
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#define RES_USE_DNSSEC (1 << 21) /* use DNSSEC using OK bit in OPT */
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#define RES_USE_INET4 (1 << 23) /* use IPv4 in gethostbyname() */
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/* KAME extensions: use higher bit to avoid conflict with ISC use */
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#define RES_USE_EDNS0 0x40000000 /* use EDNS0 if configured */
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#define RES_NO_NIBBLE2 0x80000000 /* disable alternate nibble lookup */
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#define RES_DEFAULT \
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(RES_RECURSE | RES_DEFNAMES | RES_DNSRCH | RES_NO_NIBBLE2)
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/* resolver "pfcode" values, used by dig. */
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#define RES_PRF_STATS 0x00000001
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#define RES_PRF_UPDATE 0x00000002
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#define RES_PRF_CLASS 0x00000004
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#define RES_PRF_CMD 0x00000008
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#define RES_PRF_QUES 0x00000010
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#define RES_PRF_ANS 0x00000020
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#define RES_PRF_AUTH 0x00000040
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#define RES_PRF_ADD 0x00000080
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#define RES_PRF_HEAD1 0x00000100
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#define RES_PRF_HEAD2 0x00000200
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#define RES_PRF_TTLID 0x00000400
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#define RES_PRF_HEADX 0x00000800
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#define RES_PRF_QUERY 0x00001000
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#define RES_PRF_REPLY 0x00002000
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#define RES_PRF_INIT 0x00004000
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/* Things involving an internal (static) resolver context. */
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extern struct __res_state *__res_state(void) __attribute__ ((__const__));
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#define _res (*__res_state())
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#define fp_nquery __fp_nquery
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#define fp_query __fp_query
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#define hostalias __hostalias
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#define p_query __p_query
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#define res_close __res_close
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#define res_init __res_init
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#define res_isourserver __res_isourserver
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#define res_mkquery __res_mkquery
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#define res_query __res_query
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#define res_querydomain __res_querydomain
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#define res_search __res_search
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#define res_send __res_send
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void fp_nquery(const unsigned char *, int, FILE *);
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void fp_query(const unsigned char *, FILE *);
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const char *hostalias(const char *);
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void p_query(const unsigned char *);
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void res_close(void);
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int res_init(void);
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int res_isourserver(const struct sockaddr_in *);
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int res_mkquery(int, const char *, int, int, const unsigned char *,
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int, const unsigned char *, unsigned char *, int);
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int res_query(const char *, int, int, unsigned char *, int);
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int res_querydomain(const char *, const char *, int, int,
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unsigned char *, int);
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int res_search(const char *, int, int, unsigned char *, int);
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int res_send(const unsigned char *, int, unsigned char *, int);
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#define b64_ntop __b64_ntop
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#define b64_pton __b64_pton
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#define dn_comp __dn_comp
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#define dn_count_labels __dn_count_labels
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#define dn_expand __dn_expand
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#define dn_skipname __dn_skipname
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#define fp_resstat __fp_resstat
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#define loc_aton __loc_aton
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#define loc_ntoa __loc_ntoa
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#define p_cdname __p_cdname
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#define p_cdnname __p_cdnname
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#define p_class __p_class
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#define p_fqname __p_fqname
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#define p_fqnname __p_fqnname
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#define p_option __p_option
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#define p_time __p_time
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#define p_type __p_type
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#define p_rcode __p_rcode
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#define res_dnok __res_dnok
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#define res_hnok __res_hnok
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#define res_hostalias __res_hostalias
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#define res_mailok __res_mailok
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#define res_nameinquery __res_nameinquery
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#define res_nclose __res_nclose
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#define res_ninit __res_ninit
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#define res_nmkquery __res_nmkquery
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#define res_nquery __res_nquery
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#define res_nquerydomain __res_nquerydomain
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#define res_nsearch __res_nsearch
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#define res_nsend __res_nsend
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#define res_ownok __res_ownok
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#define res_queriesmatch __res_queriesmatch
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#define res_randomid __res_randomid
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#define sym_ntop __sym_ntop
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#define sym_ntos __sym_ntos
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#define sym_ston __sym_ston
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int res_hnok(const char *);
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int res_ownok(const char *);
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int res_mailok(const char *);
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int res_dnok(const char *);
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int sym_ston(const struct res_sym *, const char *, int *);
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const char * sym_ntos(const struct res_sym *, int, int *);
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const char * sym_ntop(const struct res_sym *, int, int *);
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int b64_ntop(unsigned char const *, size_t, char *, size_t);
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int b64_pton(char const *, unsigned char *, size_t);
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int loc_aton(const char *, unsigned char *);
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const char * loc_ntoa(const unsigned char *, char *);
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int dn_skipname(const unsigned char *, const unsigned char *);
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const char * p_class(int);
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const char * p_time(uint32_t);
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const char * p_type(int);
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const char * p_rcode(int);
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const unsigned char * p_cdnname(const unsigned char *, const unsigned char *,
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int, FILE *);
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const unsigned char * p_cdname(const unsigned char *, const unsigned char *,
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FILE *);
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const unsigned char * p_fqnname(const unsigned char *, const unsigned char *,
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int, char *, int);
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const unsigned char * p_fqname(const unsigned char *, const unsigned char *,
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FILE *);
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const char * p_option(unsigned long);
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int dn_count_labels(const char *);
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int dn_comp(const char *, unsigned char *, int, unsigned char **,
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unsigned char **);
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int dn_expand(const unsigned char *, const unsigned char *,
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const unsigned char *, char *, int);
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unsigned int res_randomid(void);
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int res_nameinquery(const char *, int, int, const unsigned char *,
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const unsigned char *);
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int res_queriesmatch(const unsigned char *, const unsigned char *,
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const unsigned char *, const unsigned char *);
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/* Things involving a resolver context. */
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int res_ninit(res_state);
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void fp_resstat(const res_state, FILE *);
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const char * res_hostalias(const res_state, const char *, char *, size_t);
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int res_nquery(res_state, const char *, int, int, unsigned char *,
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int);
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int res_nsearch(res_state, const char *, int, int, unsigned char *,
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int);
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int res_nquerydomain(res_state, const char *, const char *, int,
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int, unsigned char *, int);
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int res_nmkquery(res_state, int, const char *, int, int,
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const unsigned char *, int, const unsigned char *,
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unsigned char *, int);
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int res_nsend(res_state, const unsigned char *, int, unsigned char *,
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int);
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void res_nclose(res_state);
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#ifdef __cplusplus
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}
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#endif
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#endif /* !_RESOLV_H_ */
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