/* 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>

#include <string.h>

#if defined(__linux__)

  #include <sys/socket.h>

  #include <sys/un.h>

#endif

#ifndef _WIN32

# include <unistd.h>  /* close */

#else

# include <fcntl.h>

#endif

static uv_pipe_t pipe_client;

static uv_pipe_t pipe_server;

static uv_connect_t connect_req;

static int pipe_close_cb_called = 0;

static int pipe_client_connect_cb_called = 0;

static void pipe_close_cb(uv_handle_t* handle) {

  ASSERT(handle == (uv_handle_t*) &pipe_client ||

         handle == (uv_handle_t*) &pipe_server);

  pipe_close_cb_called++;

}

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

  char buf[1024];

  size_t len;

  int r;

  ASSERT(req == &connect_req);

  ASSERT(status == 0);

  len = sizeof buf;

  r = uv_pipe_getpeername(&pipe_client, buf, &len;;

  ASSERT(r == 0);

  ASSERT(buf[len - 1] != 0);

  ASSERT(memcmp(buf, TEST_PIPENAME, len) == 0);

  len = sizeof buf;

  r = uv_pipe_getsockname(&pipe_client, buf, &len;;

  ASSERT(r == 0 && len == 0);

  pipe_client_connect_cb_called++;

  uv_close((uv_handle_t*) &pipe_client, pipe_close_cb);

  uv_close((uv_handle_t*) &pipe_server, pipe_close_cb);

}

static void pipe_server_connection_cb(uv_stream_t* handle, int status) {

  /* This function *may* be called, depending on whether accept or the

   * connection callback is called first.

   */

  ASSERT(status == 0);

}

TEST_IMPL(pipe_getsockname) {

#if defined(NO_SELF_CONNECT)

  RETURN_SKIP(NO_SELF_CONNECT);

#endif

  uv_loop_t* loop;

  char buf[1024];

  size_t len;

  int r;

  loop = uv_default_loop();

  ASSERT(loop != NULL);

  r = uv_pipe_init(loop, &pipe_server, 0);

  ASSERT(r == 0);

  len = sizeof buf;

  r = uv_pipe_getsockname(&pipe_server, buf, &len;;

  ASSERT(r == UV_EBADF);

  len = sizeof buf;

  r = uv_pipe_getpeername(&pipe_server, buf, &len;;

  ASSERT(r == UV_EBADF);

  r = uv_pipe_bind(&pipe_server, TEST_PIPENAME);

  ASSERT(r == 0);

  len = sizeof buf;

  r = uv_pipe_getsockname(&pipe_server, buf, &len;;

  ASSERT(r == 0);

  ASSERT(buf[len - 1] != 0);

  ASSERT(buf[len] == '\0');

  ASSERT(memcmp(buf, TEST_PIPENAME, len) == 0);

  len = sizeof buf;

  r = uv_pipe_getpeername(&pipe_server, buf, &len;;

  ASSERT(r == UV_ENOTCONN);

  r = uv_listen((uv_stream_t*) &pipe_server, 0, pipe_server_connection_cb);

  ASSERT(r == 0);

  r = uv_pipe_init(loop, &pipe_client, 0);

  ASSERT(r == 0);

  len = sizeof buf;

  r = uv_pipe_getsockname(&pipe_client, buf, &len;;

  ASSERT(r == UV_EBADF);

  len = sizeof buf;

  r = uv_pipe_getpeername(&pipe_client, buf, &len;;

  ASSERT(r == UV_EBADF);

  uv_pipe_connect(&connect_req, &pipe_client, TEST_PIPENAME, pipe_client_connect_cb);

  len = sizeof buf;

  r = uv_pipe_getsockname(&pipe_client, buf, &len;;

  ASSERT(r == 0 && len == 0);

  len = sizeof buf;

  r = uv_pipe_getpeername(&pipe_client, buf, &len;;

  ASSERT(r == 0);

  ASSERT(buf[len - 1] != 0);

  ASSERT(memcmp(buf, TEST_PIPENAME, len) == 0);

  r = uv_run(loop, UV_RUN_DEFAULT);

  ASSERT(r == 0);

  ASSERT(pipe_client_connect_cb_called == 1);

  ASSERT(pipe_close_cb_called == 2);

  MAKE_VALGRIND_HAPPY();

  return 0;

}

TEST_IMPL(pipe_getsockname_abstract) {

#if defined(__linux__)

  char buf[1024];

  size_t len;

  int r;

  int sock;

  struct sockaddr_un sun;

  socklen_t sun_len;

  char abstract_pipe[] = "\0test-pipe";

  sock = socket(AF_UNIX, SOCK_STREAM, 0);

  ASSERT(sock != -1);

  sun_len = sizeof sun;

  memset(&sun, 0, sun_len);

  sun.sun_family = AF_UNIX;

  memcpy(sun.sun_path, abstract_pipe, sizeof abstract_pipe);

  r = bind(sock, (struct sockaddr*)&sun, sun_len);

  ASSERT(r == 0);

  r = uv_pipe_init(uv_default_loop(), &pipe_server, 0);

  ASSERT(r == 0);

  r = uv_pipe_open(&pipe_server, sock);

  ASSERT(r == 0);

  len = sizeof buf;

  r = uv_pipe_getsockname(&pipe_server, buf, &len;;

  ASSERT(r == 0);

  ASSERT(memcmp(buf, abstract_pipe, sizeof abstract_pipe) == 0);

  uv_close((uv_handle_t*)&pipe_server, pipe_close_cb);

  uv_run(uv_default_loop(), UV_RUN_DEFAULT);

  close(sock);

  ASSERT(pipe_close_cb_called == 1);

  MAKE_VALGRIND_HAPPY();

  return 0;

#else

  MAKE_VALGRIND_HAPPY();

  return 0;

#endif

}

TEST_IMPL(pipe_getsockname_blocking) {

#ifdef _WIN32

  HANDLE readh, writeh;

  int readfd;

  char buf1[1024], buf2[1024];

  size_t len1, len2;

  int r;

  r = CreatePipe(&readh, &writeh, NULL, 65536);

  ASSERT(r != 0);

  r = uv_pipe_init(uv_default_loop(), &pipe_client, 0);

  ASSERT(r == 0);

  readfd = _open_osfhandle((intptr_t)readh, _O_RDONLY);

  ASSERT(r != -1);

  r = uv_pipe_open(&pipe_client, readfd);

  ASSERT(r == 0);

  r = uv_read_start((uv_stream_t*)&pipe_client, NULL, NULL);

  ASSERT(r == 0);

  Sleep(100);

  r = uv_read_stop((uv_stream_t*)&pipe_client);

  ASSERT(r == 0);

  len1 = sizeof buf1;

  r = uv_pipe_getsockname(&pipe_client, buf1, &len1);

  ASSERT(r == 0);

  ASSERT(len1 == 0);  /* It's an annonymous pipe. */

  r = uv_read_start((uv_stream_t*)&pipe_client, NULL, NULL);

  ASSERT(r == 0);

  Sleep(100);

  len2 = sizeof buf2;

  r = uv_pipe_getsockname(&pipe_client, buf2, &len2);

  ASSERT(r == 0);

  ASSERT(len2 == 0);  /* It's an annonymous pipe. */

  r = uv_read_stop((uv_stream_t*)&pipe_client);

  ASSERT(r == 0);

  ASSERT(len1 == len2);

  ASSERT(memcmp(buf1, buf2, len1) == 0);

  pipe_close_cb_called = 0;

  uv_close((uv_handle_t*)&pipe_client, pipe_close_cb);

  uv_run(uv_default_loop(), UV_RUN_DEFAULT);

  ASSERT(pipe_close_cb_called == 1);

  CloseHandle(writeh);

#endif

  MAKE_VALGRIND_HAPPY();

  return 0;

}