diff options
Diffstat (limited to 'lib/bind/irs/irs_data.c')
| -rw-r--r-- | lib/bind/irs/irs_data.c | 246 |
1 files changed, 0 insertions, 246 deletions
diff --git a/lib/bind/irs/irs_data.c b/lib/bind/irs/irs_data.c deleted file mode 100644 index ed94614..0000000 --- a/lib/bind/irs/irs_data.c +++ /dev/null @@ -1,246 +0,0 @@ -/* - * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC") - * 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 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. - */ - -#if !defined(LINT) && !defined(CODECENTER) -static const char rcsid[] = "$Id: irs_data.c,v 1.7.18.5 2007/08/27 03:34:24 marka Exp $"; -#endif - -#include "port_before.h" - -#ifndef __BIND_NOSTATIC - -#include <sys/types.h> - -#include <netinet/in.h> -#include <arpa/nameser.h> - -#include <resolv.h> -#include <stdio.h> -#include <string.h> -#include <isc/memcluster.h> - -#ifdef DO_PTHREADS -#include <pthread.h> -#endif - -#include <irs.h> -#include <stdlib.h> - -#include "port_after.h" - -#include "irs_data.h" -#undef _res -#if !(__GLIBC__ > 2 || __GLIBC__ == 2 && __GLIBC_MINOR__ >= 3) -#undef h_errno -extern int h_errno; -#endif - -extern struct __res_state _res; - -#ifdef DO_PTHREADS -static pthread_key_t key; -static int once = 0; -#else -static struct net_data *net_data; -#endif - -void -irs_destroy(void) { -#ifndef DO_PTHREADS - if (net_data != NULL) - net_data_destroy(net_data); - net_data = NULL; -#endif -} - -void -net_data_destroy(void *p) { - struct net_data *net_data = p; - - res_ndestroy(net_data->res); - if (net_data->gr != NULL) { - (*net_data->gr->close)(net_data->gr); - net_data->gr = NULL; - } - if (net_data->pw != NULL) { - (*net_data->pw->close)(net_data->pw); - net_data->pw = NULL; - } - if (net_data->sv != NULL) { - (*net_data->sv->close)(net_data->sv); - net_data->sv = NULL; - } - if (net_data->pr != NULL) { - (*net_data->pr->close)(net_data->pr); - net_data->pr = NULL; - } - if (net_data->ho != NULL) { - (*net_data->ho->close)(net_data->ho); - net_data->ho = NULL; - } - if (net_data->nw != NULL) { - (*net_data->nw->close)(net_data->nw); - net_data->nw = NULL; - } - if (net_data->ng != NULL) { - (*net_data->ng->close)(net_data->ng); - net_data->ng = NULL; - } - if (net_data->ho_data != NULL) { - free(net_data->ho_data); - net_data->ho_data = NULL; - } - if (net_data->nw_data != NULL) { - free(net_data->nw_data); - net_data->nw_data = NULL; - } - - (*net_data->irs->close)(net_data->irs); - memput(net_data, sizeof *net_data); -} - -/*% - * applications that need a specific config file other than - * _PATH_IRS_CONF should call net_data_init directly rather than letting - * the various wrapper functions make the first call. - brister - */ - -struct net_data * -net_data_init(const char *conf_file) { -#ifdef DO_PTHREADS -#ifndef LIBBIND_MUTEX_INITIALIZER -#define LIBBIND_MUTEX_INITIALIZER PTHREAD_MUTEX_INITIALIZER -#endif - static pthread_mutex_t keylock = LIBBIND_MUTEX_INITIALIZER; - struct net_data *net_data; - - if (!once) { - if (pthread_mutex_lock(&keylock) != 0) - return (NULL); - if (!once) { - if (pthread_key_create(&key, net_data_destroy) != 0) { - (void)pthread_mutex_unlock(&keylock); - return (NULL); - } - once = 1; - } - if (pthread_mutex_unlock(&keylock) != 0) - return (NULL); - } - net_data = pthread_getspecific(key); -#endif - - if (net_data == NULL) { - net_data = net_data_create(conf_file); - if (net_data == NULL) - return (NULL); -#ifdef DO_PTHREADS - if (pthread_setspecific(key, net_data) != 0) { - net_data_destroy(net_data); - return (NULL); - } -#endif - } - - return (net_data); -} - -struct net_data * -net_data_create(const char *conf_file) { - struct net_data *net_data; - - net_data = memget(sizeof (struct net_data)); - if (net_data == NULL) - return (NULL); - memset(net_data, 0, sizeof (struct net_data)); - - if ((net_data->irs = irs_gen_acc("", conf_file)) == NULL) { - memput(net_data, sizeof (struct net_data)); - return (NULL); - } -#ifndef DO_PTHREADS - (*net_data->irs->res_set)(net_data->irs, &_res, NULL); -#endif - - net_data->res = (*net_data->irs->res_get)(net_data->irs); - if (net_data->res == NULL) { - (*net_data->irs->close)(net_data->irs); - memput(net_data, sizeof (struct net_data)); - return (NULL); - } - - if ((net_data->res->options & RES_INIT) == 0U && - res_ninit(net_data->res) == -1) { - (*net_data->irs->close)(net_data->irs); - memput(net_data, sizeof (struct net_data)); - return (NULL); - } - - return (net_data); -} - -void -net_data_minimize(struct net_data *net_data) { - res_nclose(net_data->res); -} - -#ifdef _REENTRANT -struct __res_state * -__res_state(void) { - /* NULL param here means use the default config file. */ - struct net_data *net_data = net_data_init(NULL); - if (net_data && net_data->res) - return (net_data->res); - - return (&_res); -} -#else -#ifdef __linux -struct __res_state * -__res_state(void) { - return (&_res); -} -#endif -#endif - -int * -__h_errno(void) { - /* NULL param here means use the default config file. */ - struct net_data *net_data = net_data_init(NULL); - if (net_data && net_data->res) - return (&net_data->res->res_h_errno); -#if !(__GLIBC__ > 2 || __GLIBC__ == 2 && __GLIBC_MINOR__ >= 3) - return(&_res.res_h_errno); -#else - return (&h_errno); -#endif -} - -void -__h_errno_set(struct __res_state *res, int err) { - - -#if (__GLIBC__ > 2 || __GLIBC__ == 2 && __GLIBC_MINOR__ >= 3) - res->res_h_errno = err; -#else - h_errno = res->res_h_errno = err; -#endif -} - -#endif /*__BIND_NOSTATIC*/ - -/*! \file */ |
