diff options
Diffstat (limited to 'contrib/bind/lib/resolv/res_data.c')
| -rw-r--r-- | contrib/bind/lib/resolv/res_data.c | 292 |
1 files changed, 0 insertions, 292 deletions
diff --git a/contrib/bind/lib/resolv/res_data.c b/contrib/bind/lib/resolv/res_data.c deleted file mode 100644 index 7688637e8721..000000000000 --- a/contrib/bind/lib/resolv/res_data.c +++ /dev/null @@ -1,292 +0,0 @@ -/* - * Copyright (c) 1995-1999 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. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static const char rcsid[] = "$Id: res_data.c,v 8.17 1999/10/13 17:11:31 vixie Exp $"; -#endif /* LIBC_SCCS and not lint */ - -#include "port_before.h" - -#include <sys/types.h> -#include <sys/param.h> -#include <sys/socket.h> -#include <sys/time.h> - -#include <netinet/in.h> -#include <arpa/inet.h> -#include <arpa/nameser.h> - -#include <ctype.h> -#include <netdb.h> -#include <resolv.h> -#include <res_update.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> - -#include "port_after.h" -#undef _res - -const char *_res_opcodes[] = { - "QUERY", - "IQUERY", - "CQUERYM", - "CQUERYU", /* experimental */ - "NOTIFY", /* experimental */ - "UPDATE", - "6", - "7", - "8", - "9", - "10", - "11", - "12", - "13", - "ZONEINIT", - "ZONEREF", -}; - -#ifdef BIND_UPDATE -const char *_res_sectioncodes[] = { - "ZONE", - "PREREQUISITES", - "UPDATE", - "ADDITIONAL", -}; -#endif - -#ifndef __BIND_NOSTATIC -struct __res_state _res -# if defined(__BIND_RES_TEXT) - = { RES_TIMEOUT, } /* Motorola, et al. */ -# endif - ; - -/* Proto. */ - -int res_ourserver_p(const res_state, const struct sockaddr_in *); -void res_pquery(const res_state, const u_char *, int, FILE *); - -int -res_init(void) { - extern int __res_vinit(res_state, int); - - /* - * These three fields used to be statically initialized. This made - * it hard to use this code in a shared library. It is necessary, - * now that we're doing dynamic initialization here, that we preserve - * the old semantics: if an application modifies one of these three - * fields of _res before res_init() is called, res_init() will not - * alter them. Of course, if an application is setting them to - * _zero_ before calling res_init(), hoping to override what used - * to be the static default, we can't detect it and unexpected results - * will follow. Zero for any of these fields would make no sense, - * so one can safely assume that the applications were already getting - * unexpected results. - * - * _res.options is tricky since some apps were known to diddle the bits - * before res_init() was first called. We can't replicate that semantic - * with dynamic initialization (they may have turned bits off that are - * set in RES_DEFAULT). Our solution is to declare such applications - * "broken". They could fool us by setting RES_INIT but none do (yet). - */ - if (!_res.retrans) - _res.retrans = RES_TIMEOUT; - if (!_res.retry) - _res.retry = 4; - if (!(_res.options & RES_INIT)) - _res.options = RES_DEFAULT; - - /* - * This one used to initialize implicitly to zero, so unless the app - * has set it to something in particular, we can randomize it now. - */ - if (!_res.id) - _res.id = res_randomid(); - - return (__res_vinit(&_res, 1)); -} - -void -p_query(const u_char *msg) { - fp_query(msg, stdout); -} - -void -fp_query(const u_char *msg, FILE *file) { - fp_nquery(msg, PACKETSZ, file); -} - -void -fp_nquery(const u_char *msg, int len, FILE *file) { - if ((_res.options & RES_INIT) == 0 && res_init() == -1) - return; - - res_pquery(&_res, msg, len, file); -} - -int -res_mkquery(int op, /* opcode of query */ - const char *dname, /* domain name */ - int class, int type, /* class and type of query */ - const u_char *data, /* resource record data */ - int datalen, /* length of data */ - const u_char *newrr_in, /* new rr for modify or append */ - u_char *buf, /* buffer to put query */ - int buflen) /* size of buffer */ -{ - if ((_res.options & RES_INIT) == 0 && res_init() == -1) { - RES_SET_H_ERRNO(&_res, NETDB_INTERNAL); - return (-1); - } - return (res_nmkquery(&_res, op, dname, class, type, - data, datalen, - newrr_in, buf, buflen)); -} - -int -res_mkupdate(ns_updrec *rrecp_in, u_char *buf, int buflen) { - if ((_res.options & RES_INIT) == 0 && res_init() == -1) { - RES_SET_H_ERRNO(&_res, NETDB_INTERNAL); - return (-1); - } - - return (res_nmkupdate(&_res, rrecp_in, buf, buflen)); -} - -int -res_query(const char *name, /* domain name */ - int class, int type, /* class and type of query */ - u_char *answer, /* buffer to put answer */ - int anslen) /* size of answer buffer */ -{ - if ((_res.options & RES_INIT) == 0 && res_init() == -1) { - RES_SET_H_ERRNO(&_res, NETDB_INTERNAL); - return (-1); - } - return (res_nquery(&_res, name, class, type, answer, anslen)); -} - -void -res_send_setqhook(res_send_qhook hook) { - _res.qhook = hook; -} - -void -res_send_setrhook(res_send_rhook hook) { - _res.rhook = hook; -} - -int -res_isourserver(const struct sockaddr_in *inp) { - return (res_ourserver_p(&_res, inp)); -} - -int -res_send(const u_char *buf, int buflen, u_char *ans, int anssiz) { - if ((_res.options & RES_INIT) == 0 && res_init() == -1) { - /* errno should have been set by res_init() in this case. */ - return (-1); - } - - return (res_nsend(&_res, buf, buflen, ans, anssiz)); -} - -int -res_sendsigned(const u_char *buf, int buflen, ns_tsig_key *key, - u_char *ans, int anssiz) -{ - if ((_res.options & RES_INIT) == 0 && res_init() == -1) { - /* errno should have been set by res_init() in this case. */ - return (-1); - } - - return (res_nsendsigned(&_res, buf, buflen, key, ans, anssiz)); -} - -void -res_close(void) { - res_nclose(&_res); -} - -int -res_update(ns_updrec *rrecp_in) { - if ((_res.options & RES_INIT) == 0 && res_init() == -1) { - RES_SET_H_ERRNO(&_res, NETDB_INTERNAL); - return (-1); - } - - return (res_nupdate(&_res, rrecp_in, NULL)); -} - -int -res_search(const char *name, /* domain name */ - int class, int type, /* class and type of query */ - u_char *answer, /* buffer to put answer */ - int anslen) /* size of answer */ -{ - if ((_res.options & RES_INIT) == 0 && res_init() == -1) { - RES_SET_H_ERRNO(&_res, NETDB_INTERNAL); - return (-1); - } - - return (res_nsearch(&_res, name, class, type, answer, anslen)); -} - -int -res_querydomain(const char *name, - const char *domain, - int class, int type, /* class and type of query */ - u_char *answer, /* buffer to put answer */ - int anslen) /* size of answer */ -{ - if ((_res.options & RES_INIT) == 0 && res_init() == -1) { - RES_SET_H_ERRNO(&_res, NETDB_INTERNAL); - return (-1); - } - - return (res_nquerydomain(&_res, name, domain, - class, type, - answer, anslen)); -} - -const char * -hostalias(const char *name) { - static char abuf[MAXDNAME]; - - return (res_hostalias(&_res, name, abuf, sizeof abuf)); -} - -#ifdef ultrix -int -local_hostname_length(const char *hostname) { - int len_host, len_domain; - - if (!*_res.defdname) - res_init(); - len_host = strlen(hostname); - len_domain = strlen(_res.defdname); - if (len_host > len_domain && - !strcasecmp(hostname + len_host - len_domain, _res.defdname) && - hostname[len_host - len_domain - 1] == '.') - return (len_host - len_domain - 1); - return (0); -} -#endif /*ultrix*/ - -#endif |