diff options
Diffstat (limited to 'contrib/bind/lib/irs/dns.c')
| -rw-r--r-- | contrib/bind/lib/irs/dns.c | 153 |
1 files changed, 0 insertions, 153 deletions
diff --git a/contrib/bind/lib/irs/dns.c b/contrib/bind/lib/irs/dns.c deleted file mode 100644 index 3feed265b5e8..000000000000 --- a/contrib/bind/lib/irs/dns.c +++ /dev/null @@ -1,153 +0,0 @@ -/* - * 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. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static const char rcsid[] = "$Id: dns.c,v 1.16 2001/05/29 05:48:26 marka Exp $"; -#endif - -/* - * dns.c --- this is the top-level accessor function for the dns - */ - -#include "port_before.h" - -#include <stdlib.h> -#include <string.h> -#include <errno.h> - -#include <sys/types.h> -#include <netinet/in.h> -#include <arpa/nameser.h> -#include <resolv.h> - -#include <resolv.h> - -#include <isc/memcluster.h> -#include <irs.h> - -#include "port_after.h" - -#include "irs_p.h" -#include "hesiod.h" -#include "dns_p.h" - -/* forward */ - -static void dns_close(struct irs_acc *); -static struct __res_state * dns_res_get(struct irs_acc *); -static void dns_res_set(struct irs_acc *, struct __res_state *, - void (*)(void *)); - -/* public */ - -struct irs_acc * -irs_dns_acc(const char *options) { - struct irs_acc *acc; - struct dns_p *dns; - - UNUSED(options); - - if (!(acc = memget(sizeof *acc))) { - errno = ENOMEM; - return (NULL); - } - memset(acc, 0x5e, sizeof *acc); - if (!(dns = memget(sizeof *dns))) { - errno = ENOMEM; - memput(acc, sizeof *acc); - return (NULL); - } - memset(dns, 0x5e, sizeof *dns); - dns->res = NULL; - dns->free_res = NULL; - if (hesiod_init(&dns->hes_ctx) < 0) { - /* - * We allow the dns accessor class to initialize - * despite hesiod failing to initialize correctly, - * since dns host queries don't depend on hesiod. - */ - dns->hes_ctx = NULL; - } - acc->private = dns; -#ifdef WANT_IRS_GR - acc->gr_map = irs_dns_gr; -#else - acc->gr_map = NULL; -#endif -#ifdef WANT_IRS_PW - acc->pw_map = irs_dns_pw; -#else - acc->pw_map = NULL; -#endif - acc->sv_map = irs_dns_sv; - acc->pr_map = irs_dns_pr; - acc->ho_map = irs_dns_ho; - acc->nw_map = irs_dns_nw; - acc->ng_map = irs_nul_ng; - acc->res_get = dns_res_get; - acc->res_set = dns_res_set; - acc->close = dns_close; - return (acc); -} - -/* methods */ -static struct __res_state * -dns_res_get(struct irs_acc *this) { - struct dns_p *dns = (struct dns_p *)this->private; - - if (dns->res == NULL) { - struct __res_state *res; - res = (struct __res_state *)malloc(sizeof *res); - if (res == NULL) - return (NULL); - memset(dns->res, 0, sizeof *dns->res); - dns_res_set(this, res, free); - } - - if ((dns->res->options & RES_INIT) == 0 && - res_ninit(dns->res) < 0) - return (NULL); - - return (dns->res); -} - -static void -dns_res_set(struct irs_acc *this, struct __res_state *res, - void (*free_res)(void *)) { - struct dns_p *dns = (struct dns_p *)this->private; - - if (dns->res && dns->free_res) { - res_nclose(dns->res); - (*dns->free_res)(dns->res); - } - dns->res = res; - dns->free_res = free_res; -} - -static void -dns_close(struct irs_acc *this) { - struct dns_p *dns; - - dns = (struct dns_p *)this->private; - if (dns->res && dns->free_res) - (*dns->free_res)(dns->res); - if (dns->hes_ctx) - hesiod_end(dns->hes_ctx); - memput(dns, sizeof *dns); - memput(this, sizeof *this); -} - |