/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.

 *

 * Permission is hereby granted, free of charge, to any person obtaining a copy

 * of this software and associated documentation files (the "Software"), to

 * deal in the Software without restriction, including without limitation the

 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or

 * sell copies of the Software, and to permit persons to whom the Software is

 * furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included in

 * all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING

 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS

 * IN THE SOFTWARE.

 */

#include "uv.h"

#include "task.h"

#include <stdio.h>

#include <stdlib.h>

static int connect_cb_called;

static int close_cb_called;

static uv_connect_t connect_req;

static uv_timer_t timer;

static uv_tcp_t conn;

static void connect_cb(uv_connect_t* req, int status);

static void timer_cb(uv_timer_t* handle);

static void close_cb(uv_handle_t* handle);

static void connect_cb(uv_connect_t* req, int status) {

  ASSERT(req == &connect_req);

  ASSERT(status == UV_ECANCELED);

  connect_cb_called++;

}

static void timer_cb(uv_timer_t* handle) {

  ASSERT(handle == &timer;;

  uv_close((uv_handle_t*)&conn, close_cb);

  uv_close((uv_handle_t*)&timer, close_cb);

}

static void close_cb(uv_handle_t* handle) {

  ASSERT(handle == (uv_handle_t*)&conn || handle == (uv_handle_t*)&timer;;

  close_cb_called++;

}

/* Verify that connecting to an unreachable address or port doesn't hang

 * the event loop.

 */

TEST_IMPL(tcp_connect_timeout) {

  struct sockaddr_in addr;

  int r;

  ASSERT(0 == uv_ip4_addr("8.8.8.8", 9999, &addr));

  r = uv_timer_init(uv_default_loop(), &timer;;

  ASSERT(r == 0);

  r = uv_timer_start(&timer, timer_cb, 50, 0);

  ASSERT(r == 0);

  r = uv_tcp_init(uv_default_loop(), &conn;;

  ASSERT(r == 0);

  r = uv_tcp_connect(&connect_req,

                     &conn,

                     (const struct sockaddr*) &addr,

                     connect_cb);

  if (r == UV_ENETUNREACH)

    RETURN_SKIP("Network unreachable.");

  ASSERT(r == 0);

  r = uv_run(uv_default_loop(), UV_RUN_DEFAULT);

  ASSERT(r == 0);

  MAKE_VALGRIND_HAPPY();

  return 0;

}

/* Make sure connect fails instantly if the target is nonexisting

 * local port.

 */

static void connect_local_cb(uv_connect_t* req, int status) {

  ASSERT_PTR_EQ(req, &connect_req);

  ASSERT_NE(status, UV_ECANCELED);

  connect_cb_called++;

}

static int is_supported_system(void) {

  int semver[3];

  int min_semver[3] = {10, 0, 16299};

  int cnt;

  uv_utsname_t uname;

  ASSERT_EQ(uv_os_uname(&uname), 0);

  if (strcmp(uname.sysname, "Windows_NT") == 0) {

    cnt = sscanf(uname.release, "%d.%d.%d", &semver[0], &semver[1], &semver[2]);

    if (cnt != 3) {

      return 0;

    }

    // relase >= 10.0.16299

    for (cnt = 0; cnt < 3; ++cnt) {

      if (semver[cnt] > min_semver[cnt])

        return 1;

      if (semver[cnt] < min_semver[cnt])

        return 0;

    }

    return 1;

  }

  return 1;

}

TEST_IMPL(tcp_local_connect_timeout) {

  struct sockaddr_in addr;

  int r;

  if (!is_supported_system()) {

    RETURN_SKIP("Unsupported system");

  }

  ASSERT_EQ(0, uv_ip4_addr("127.0.0.1", TEST_PORT, &addr));

  r = uv_timer_init(uv_default_loop(), &timer;;

  ASSERT_EQ(r, 0);

  /* Give it 1s to timeout. */

  r = uv_timer_start(&timer, timer_cb, 1000, 0);

  ASSERT_EQ(r, 0);

  r = uv_tcp_init(uv_default_loop(), &conn;;

  ASSERT_EQ(r, 0);

  r = uv_tcp_connect(&connect_req,

                     &conn,

                     (const struct sockaddr*) &addr,

                     connect_local_cb);

  if (r == UV_ENETUNREACH)

    RETURN_SKIP("Network unreachable.");

  ASSERT_EQ(r, 0);

  r = uv_run(uv_default_loop(), UV_RUN_DEFAULT);

  ASSERT(r == 0);

  MAKE_VALGRIND_HAPPY();

  return 0;

}

TEST_IMPL(tcp6_local_connect_timeout) {

  struct sockaddr_in6 addr;

  int r;

  if (!is_supported_system()) {

    RETURN_SKIP("Unsupported system");

  }

  if (!can_ipv6()) {

    RETURN_SKIP("IPv6 not supported");

  }

  ASSERT_EQ(0, uv_ip6_addr("::1", 9999, &addr));

  r = uv_timer_init(uv_default_loop(), &timer;;

  ASSERT_EQ(r, 0);

  /* Give it 1s to timeout. */

  r = uv_timer_start(&timer, timer_cb, 1000, 0);

  ASSERT_EQ(r, 0);

  r = uv_tcp_init(uv_default_loop(), &conn;;

  ASSERT_EQ(r, 0);

  r = uv_tcp_connect(&connect_req,

                     &conn,

                     (const struct sockaddr*) &addr,

                     connect_local_cb);

  if (r == UV_ENETUNREACH)

    RETURN_SKIP("Network unreachable.");

  ASSERT_EQ(r, 0);

  r = uv_run(uv_default_loop(), UV_RUN_DEFAULT);

  ASSERT_EQ(r, 0);

  MAKE_VALGRIND_HAPPY();

  return 0;

}