Renamed the misleading libc/netbsd directory to libc/dns.

Bug: 13219633
Change-Id: Ide43add0b90b3081cc709a22d1ff1f59d65f1104

1 files changed, 0 insertions, 225 deletions

diff --git a/libc/netbsd/resolv/res_state.c b/libc/netbsd/resolv/res_state.c
deleted file mode 100644
index f5d01a1..0000000
--- a/libc/netbsd/resolv/res_state.c
+++ /dev/null
@@ -1,225 +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>
-
-/* Set to 1 to enable debug traces */
-#define DEBUG 0
-
-#if DEBUG
-#  include "private/libc_logging.h"
-#  include <unistd.h>  /* for gettid() */
-#  define D(...) __libc_format_log(ANDROID_LOG_DEBUG,"libc", __VA_ARGS__)
-#else
-#  define D(...)  do{}while(0)
-#endif
-
-static pthread_key_t   _res_key;
-static pthread_once_t  _res_once = PTHREAD_ONCE_INIT;
-
-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 = calloc(1, 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 = __system_property_serial(rt->_pi);
-        }
-        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;
-
-    D("%s: rt=%p for thread=%d", __FUNCTION__, rt, gettid());
-
-    _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) {
-        /* We already have one thread-specific DNS state object.
-         * Check the serial value for any changes to net.* properties */
-        D("%s: Called for tid=%d rt=%p rt->pi=%p rt->serial=%d",
-           __FUNCTION__, gettid(), rt, rt->_pi, rt->_serial);
-        if (rt->_pi == NULL) {
-            /* The property wasn't created when _res_thread_get() was
-             * called the last time. This should only happen very
-             * early during the boot sequence. First, let's try to see if it
-             * is here now. */
-            rt->_pi = (struct prop_info*) __system_property_find("net.change");
-            if (rt->_pi == NULL) {
-                /* Still nothing, return current state */
-                D("%s: exiting for tid=%d rt=%d since system property not found",
-                  __FUNCTION__, gettid(), rt);
-                return rt;
-            }
-        }
-        if (rt->_serial == __system_property_serial(rt->_pi)) {
-            /* Nothing changed, so return the current state */
-            D("%s: tid=%d rt=%p nothing changed, returning",
-              __FUNCTION__, gettid(), rt);
-            return rt;
-        }
-        /* Update the recorded serial number, and go reset the state */
-        rt->_serial = __system_property_serial(rt->_pi);
-        goto RESET_STATE;
-    }
-
-    /* It is the first time this function is called in this thread,
-     * we need to create a new thread-specific DNS resolver state. */
-    rt = _res_thread_alloc();
-    if (rt == NULL) {
-        return NULL;
-    }
-    pthread_setspecific( _res_key, rt );
-    D("%s: tid=%d Created new DNS state rt=%p",
-      __FUNCTION__, gettid(), rt);
-
-RESET_STATE:
-    /* Reset the state, note that res_ninit() can now properly reset
-     * an existing state without leaking memory.
-     */
-    D("%s: tid=%d, rt=%p, resetting DNS state (options RES_INIT=%d)",
-      __FUNCTION__, gettid(), rt, (rt->_nres->options & RES_INIT) != 0);
-    if ( res_ninit( rt->_nres ) < 0 ) {
-        /* This should not happen */
-        D("%s: tid=%d rt=%p, woot, res_ninit() returned < 0",
-          __FUNCTION__, gettid(), rt);
-        _res_thread_free(rt);
-        pthread_setspecific( _res_key, NULL );
-        return NULL;
-    }
-    return rt;
-}
-
-__LIBC_HIDDEN__
-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;
-}