Merge "Remove res_init.* and move its functionalities into ResState" am: 8bc89313

        "res_cache.cpp",

        "res_comp.cpp",

        "res_debug.cpp",

        "res_init.cpp",

        "res_mkquery.cpp",

        "res_query.cpp",

        "res_send.cpp",

#include "netd_resolv/resolv.h"

#include "res_comp.h"

#include "res_debug.h"

#include "res_init.h"

#include "resolv_cache.h"

#include "resolv_private.h"

#include "util.h"

            return EAI_FAMILY;

    }

    ResState res;

    res_init(&res, netcontext, event);

    ResState res(netcontext, event);

    int he;

    if (res_searchN(name, &q, &res, &he) < 0) {

    NetworkDnsEventReported event;

    if (n <= 0) {

        LOG(ERROR) << __func__ << ": res_nmkquery failed";

        return {0, -1, NO_RECOVERY, event};

        return {

                .ancount = 0,

                .rcode = -1,

        };

    }

    ResState res_temp = fromResState(*res, &event);

    ResState res_temp = res->clone(&event);

    int rcode = NOERROR;

    n = res_nsend(&res_temp, buf, n, t->answer.data(), anslen, &rcode, 0, sleepTimeMs);

#include "netd_resolv/resolv.h"

#include "res_comp.h"

#include "res_debug.h"  // p_class(), p_type()

#include "res_init.h"

#include "resolv_cache.h"

#include "resolv_private.h"

#include "stats.pb.h"

using android::net::NetworkDnsEventReported;

    }

    getnamaddr info;

    ResState res;

    res_init(&res, netcontext, event);

    ResState res(netcontext, event);

    size_t size;

    switch (af) {

    auto buf = std::make_unique<querybuf>();

    ResState res;

    res_init(&res, netcontext, event);

    ResState res(netcontext, event);

    int he;

    n = res_nquery(&res, qbuf, C_IN, T_PTR, buf->buf, (int)sizeof(buf->buf), &he);

    if (n < 0) {

/*	$NetBSD: res_init.c,v 1.8 2006/03/19 03:10:08 christos Exp $	*/

/*

 * Copyright (c) 1985, 1989, 1993

 *    The Regents of the University of California.  All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. 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.

 * 3. All advertising materials mentioning features or use of this software

 *    must display the following acknowledgement:

 * 	This product includes software developed by the University of

 * 	California, Berkeley and its contributors.

 * 4. Neither the name of the University nor the names of its contributors

 *    may be used to endorse or promote products derived from this software

 *    without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.

 */

/*

 * Portions Copyright (c) 1993 by Digital Equipment Corporation.

 *

 * 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, and that

 * the name of Digital Equipment Corporation not be used in advertising or

 * publicity pertaining to distribution of the document or software without

 * specific, written prior permission.

 *

 * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL

 * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES

 * OF MERCHANTABILITY AND FITNESS.   IN NO EVENT SHALL DIGITAL EQUIPMENT

 * CORPORATION 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.

 */

/*

 * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")

 * Portions 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.

 */

#define LOG_TAG "resolv"

#include <sys/param.h>

#include <sys/socket.h>

#include <sys/time.h>

#include <arpa/inet.h>

#include <arpa/nameser.h>

#include <netinet/in.h>

#include <android-base/logging.h>

#include <ctype.h>

#include <errno.h>

#include <fcntl.h>

#include <netdb.h>

#include <stdlib.h>

#include <string.h>

#include <unistd.h>

#include "netd_resolv/resolv.h"

#include "resolv_private.h"

#include "stats.pb.h"

void res_init(ResState* statp, const struct android_net_context* _Nonnull netcontext,

              android::net::NetworkDnsEventReported* _Nonnull event) {

    statp->netid = netcontext->dns_netid;

    statp->uid = netcontext->uid;

    statp->pid = netcontext->pid;

    statp->id = arc4random_uniform(65536);

    for (auto& sock : statp->nssocks) {

        sock.reset();

    }

    statp->ndots = 1;

    statp->_mark = netcontext->dns_mark;

    statp->tcp_nssock.reset();

    statp->event = event;

    statp->netcontext_flags = netcontext->flags;

}

// TODO: Have some proper constructors for ResState instead of this method and res_init().

ResState fromResState(const ResState& other, android::net::NetworkDnsEventReported* event) {

    ResState resOutput;

    resOutput.netid = other.netid;

    resOutput.uid = other.uid;

    resOutput.pid = other.pid;

    resOutput.id = other.id;

    resOutput.nsaddrs = other.nsaddrs;

    for (auto& sock : resOutput.nssocks) {

        sock.reset();

    }

    resOutput.ndots = other.ndots;

    resOutput._mark = other._mark;

    resOutput.tcp_nssock.reset();

    resOutput.event = event;

    resOutput.netcontext_flags = other.netcontext_flags;

    return resOutput;

}

/*

 * Copyright (C) 2019 The Android Open Source Project

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

#pragma once

#include "resolv_private.h"

#include "stats.pb.h"

// TODO: make this a constructor for ResState

void res_init(ResState* res, const struct android_net_context* netcontext,

              android::net::NetworkDnsEventReported* event);

ResState fromResState(const ResState& other, android::net::NetworkDnsEventReported* event);