diff options
Diffstat (limited to 'contrib/bind9/bin/named/lwsearch.c')
| -rw-r--r-- | contrib/bind9/bin/named/lwsearch.c | 206 |
1 files changed, 0 insertions, 206 deletions
diff --git a/contrib/bind9/bin/named/lwsearch.c b/contrib/bind9/bin/named/lwsearch.c deleted file mode 100644 index 4a61f96..0000000 --- a/contrib/bind9/bin/named/lwsearch.c +++ /dev/null @@ -1,206 +0,0 @@ -/* - * Copyright (C) 2004, 2005 Internet Systems Consortium, Inc. ("ISC") - * Copyright (C) 2000, 2001 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 ISC DISCLAIMS ALL WARRANTIES WITH - * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY - * AND FITNESS. IN NO EVENT SHALL ISC 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. - */ - -/* $Id: lwsearch.c,v 1.8.18.3 2005/07/12 01:22:17 marka Exp $ */ - -/*! \file */ - -#include <config.h> - -#include <isc/magic.h> -#include <isc/mem.h> -#include <isc/mutex.h> -#include <isc/result.h> -#include <isc/types.h> -#include <isc/util.h> - -#include <dns/name.h> -#include <dns/types.h> - -#include <named/lwsearch.h> -#include <named/types.h> - -#define LWSEARCHLIST_MAGIC ISC_MAGIC('L', 'W', 'S', 'L') -#define VALID_LWSEARCHLIST(l) ISC_MAGIC_VALID(l, LWSEARCHLIST_MAGIC) - -isc_result_t -ns_lwsearchlist_create(isc_mem_t *mctx, ns_lwsearchlist_t **listp) { - ns_lwsearchlist_t *list; - isc_result_t result; - - REQUIRE(mctx != NULL); - REQUIRE(listp != NULL && *listp == NULL); - - list = isc_mem_get(mctx, sizeof(ns_lwsearchlist_t)); - if (list == NULL) - return (ISC_R_NOMEMORY); - - result = isc_mutex_init(&list->lock); - if (result != ISC_R_SUCCESS) { - isc_mem_put(mctx, list, sizeof(ns_lwsearchlist_t)); - return (result); - } - list->mctx = NULL; - isc_mem_attach(mctx, &list->mctx); - list->refs = 1; - ISC_LIST_INIT(list->names); - list->magic = LWSEARCHLIST_MAGIC; - - *listp = list; - return (ISC_R_SUCCESS); -} - -void -ns_lwsearchlist_attach(ns_lwsearchlist_t *source, ns_lwsearchlist_t **target) { - REQUIRE(VALID_LWSEARCHLIST(source)); - REQUIRE(target != NULL && *target == NULL); - - LOCK(&source->lock); - INSIST(source->refs > 0); - source->refs++; - INSIST(source->refs != 0); - UNLOCK(&source->lock); - - *target = source; -} - -void -ns_lwsearchlist_detach(ns_lwsearchlist_t **listp) { - ns_lwsearchlist_t *list; - isc_mem_t *mctx; - - REQUIRE(listp != NULL); - list = *listp; - REQUIRE(VALID_LWSEARCHLIST(list)); - - LOCK(&list->lock); - INSIST(list->refs > 0); - list->refs--; - UNLOCK(&list->lock); - - *listp = NULL; - if (list->refs != 0) - return; - - mctx = list->mctx; - while (!ISC_LIST_EMPTY(list->names)) { - dns_name_t *name = ISC_LIST_HEAD(list->names); - ISC_LIST_UNLINK(list->names, name, link); - dns_name_free(name, list->mctx); - isc_mem_put(list->mctx, name, sizeof(dns_name_t)); - } - list->magic = 0; - isc_mem_put(mctx, list, sizeof(ns_lwsearchlist_t)); - isc_mem_detach(&mctx); -} - -isc_result_t -ns_lwsearchlist_append(ns_lwsearchlist_t *list, dns_name_t *name) { - dns_name_t *newname; - isc_result_t result; - - REQUIRE(VALID_LWSEARCHLIST(list)); - REQUIRE(name != NULL); - - newname = isc_mem_get(list->mctx, sizeof(dns_name_t)); - if (newname == NULL) - return (ISC_R_NOMEMORY); - dns_name_init(newname, NULL); - result = dns_name_dup(name, list->mctx, newname); - if (result != ISC_R_SUCCESS) { - isc_mem_put(list->mctx, newname, sizeof(dns_name_t)); - return (result); - } - ISC_LINK_INIT(newname, link); - ISC_LIST_APPEND(list->names, newname, link); - return (ISC_R_SUCCESS); -} - -void -ns_lwsearchctx_init(ns_lwsearchctx_t *sctx, ns_lwsearchlist_t *list, - dns_name_t *name, unsigned int ndots) -{ - INSIST(sctx != NULL); - sctx->relname = name; - sctx->searchname = NULL; - sctx->doneexact = ISC_FALSE; - sctx->exactfirst = ISC_FALSE; - sctx->ndots = ndots; - if (dns_name_isabsolute(name) || list == NULL) { - sctx->list = NULL; - return; - } - sctx->list = list; - sctx->searchname = ISC_LIST_HEAD(sctx->list->names); - if (dns_name_countlabels(name) > ndots) - sctx->exactfirst = ISC_TRUE; -} - -void -ns_lwsearchctx_first(ns_lwsearchctx_t *sctx) { - REQUIRE(sctx != NULL); - UNUSED(sctx); -} - -isc_result_t -ns_lwsearchctx_next(ns_lwsearchctx_t *sctx) { - REQUIRE(sctx != NULL); - - if (sctx->list == NULL) - return (ISC_R_NOMORE); - - if (sctx->searchname == NULL) { - INSIST (!sctx->exactfirst || sctx->doneexact); - if (sctx->exactfirst || sctx->doneexact) - return (ISC_R_NOMORE); - sctx->doneexact = ISC_TRUE; - } else { - if (sctx->exactfirst && !sctx->doneexact) - sctx->doneexact = ISC_TRUE; - else { - sctx->searchname = ISC_LIST_NEXT(sctx->searchname, - link); - if (sctx->searchname == NULL && sctx->doneexact) - return (ISC_R_NOMORE); - } - } - - return (ISC_R_SUCCESS); -} - -isc_result_t -ns_lwsearchctx_current(ns_lwsearchctx_t *sctx, dns_name_t *absname) { - dns_name_t *tname; - isc_boolean_t useexact = ISC_FALSE; - - REQUIRE(sctx != NULL); - - if (sctx->list == NULL || - sctx->searchname == NULL || - (sctx->exactfirst && !sctx->doneexact)) - useexact = ISC_TRUE; - - if (useexact) { - if (dns_name_isabsolute(sctx->relname)) - tname = NULL; - else - tname = dns_rootname; - } else - tname = sctx->searchname; - - return (dns_name_concatenate(sctx->relname, tname, absname, NULL)); -} |
