diff options
Diffstat (limited to 'libc/netbsd/resolv/res_state.c')
| -rw-r--r-- | libc/netbsd/resolv/res_state.c | 185 |
1 files changed, 0 insertions, 185 deletions
diff --git a/libc/netbsd/resolv/res_state.c b/libc/netbsd/resolv/res_state.c deleted file mode 100644 index 3a2301d..0000000 --- a/libc/netbsd/resolv/res_state.c +++ /dev/null @@ -1,185 +0,0 @@ -/* - * Copyright (C) 2008 The Android Open Source Project - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE - * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, - * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS - * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED - * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ -#include <sys/cdefs.h> -#include <sys/types.h> -#include <arpa/inet.h> -#include "arpa_nameser.h" -#include <netdb.h> -#include "resolv_private.h" -#include "resolv_cache.h" -#include <pthread.h> -#include <stdlib.h> - -#define _REALLY_INCLUDE_SYS__SYSTEM_PROPERTIES_H_ -#include <sys/_system_properties.h> - -static pthread_key_t _res_key; -static pthread_once_t _res_once; - -typedef struct { - int _h_errno; - struct __res_state _nres[1]; - unsigned _serial; - struct prop_info* _pi; - struct res_static _rstatic[1]; -} _res_thread; - -static _res_thread* -_res_thread_alloc(void) -{ - _res_thread* rt = malloc(sizeof(*rt)); - - if (rt) { - rt->_h_errno = 0; - /* Special system property which tracks any changes to 'net.*'. */ - rt->_serial = 0; - rt->_pi = (struct prop_info*) __system_property_find("net.change"); - if (rt->_pi) { - rt->_serial = rt->_pi->serial; - } - if ( res_ninit( rt->_nres ) < 0 ) { - free(rt); - rt = NULL; - } else { - memset(rt->_rstatic, 0, sizeof rt->_rstatic); - } - } - return rt; -} - -static void -_res_static_done( res_static rs ) -{ - /* fortunately, there is nothing to do here, since the - * points in h_addr_ptrs and host_aliases should all - * point to 'hostbuf' - */ - if (rs->hostf) { /* should not happen in theory, but just be safe */ - fclose(rs->hostf); - rs->hostf = NULL; - } - free(rs->servent.s_aliases); -} - -static void -_res_thread_free( void* _rt ) -{ - _res_thread* rt = _rt; - - _res_static_done(rt->_rstatic); - res_ndestroy(rt->_nres); - free(rt); -} - -static void -_res_init_key( void ) -{ - pthread_key_create( &_res_key, _res_thread_free ); -} - -static _res_thread* -_res_thread_get(void) -{ - _res_thread* rt; - pthread_once( &_res_once, _res_init_key ); - rt = pthread_getspecific( _res_key ); - if (rt == NULL) { - if ((rt = _res_thread_alloc()) == NULL) { - return NULL; - } - rt->_h_errno = 0; - rt->_serial = 0; - pthread_setspecific( _res_key, rt ); - } - /* Check the serial value for any chanes to net.* properties. */ - if (rt->_pi == NULL) { - rt->_pi = (struct prop_info*) __system_property_find("net.change"); - } - if (rt->_pi == NULL || rt->_serial == rt->_pi->serial) { - return rt; - } - rt->_serial = rt->_pi->serial; - /* Reload from system properties. */ - if ( res_ninit( rt->_nres ) < 0 ) { - free(rt); - rt = NULL; - pthread_setspecific( _res_key, rt ); - } - _resolv_cache_reset(rt->_serial); - return rt; -} - -struct __res_state _nres; - -#if 0 -struct resolv_cache* -__get_res_cache(void) -{ - _res_thread* rt = _res_thread_get(); - - if (!rt) - return NULL; - - if (!rt->_cache) { - rt->_cache = _resolv_cache_create(); - } - return rt->_cache; -} -#endif - -int* -__get_h_errno(void) -{ - _res_thread* rt = _res_thread_get(); - static int panic = NETDB_INTERNAL; - - return rt ? &rt->_h_errno : &panic; -} - -res_state -__res_get_state(void) -{ - _res_thread* rt = _res_thread_get(); - - return rt ? rt->_nres : NULL; -} - -void -__res_put_state(res_state res) -{ - /* nothing to do */ - res=res; -} - -res_static -__res_get_static(void) -{ - _res_thread* rt = _res_thread_get(); - - return rt ? rt->_rstatic : NULL; -} |