libuv-svace-build

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/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
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 *
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 * Permission is hereby granted, free of charge, to any person obtaining a copy
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 * of this software and associated documentation files (the "Software"), to
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 * deal in the Software without restriction, including without limitation the
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 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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 * sell copies of the Software, and to permit persons to whom the Software is
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 * furnished to do so, subject to the following conditions:
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 *
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 * The above copyright notice and this permission notice shall be included in
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 * all copies or substantial portions of the Software.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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 * IN THE SOFTWARE.
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 */
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#include "uv.h"
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#include "task.h"
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#ifndef _WIN32
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#include <fcntl.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/socket.h>
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#include <unistd.h>
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/* NOTE: size should be divisible by 2 */
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static uv_pipe_t incoming[4];
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static unsigned int incoming_count;
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static unsigned int close_called;
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static void set_nonblocking(uv_os_sock_t sock) {
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  int r;
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#ifdef _WIN32
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  unsigned long on = 1;
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  r = ioctlsocket(sock, FIONBIO, &on);
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  ASSERT_OK(r);
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#else
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  int flags = fcntl(sock, F_GETFL, 0);
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  ASSERT_GE(flags, 0);
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  r = fcntl(sock, F_SETFL, flags | O_NONBLOCK);
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  ASSERT_GE(r, 0);
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#endif
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}
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static void close_cb(uv_handle_t* handle) {
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  close_called++;
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}
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static void alloc_cb(uv_handle_t* handle, size_t size, uv_buf_t* buf) {
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  static char base[1];
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  buf->base = base;
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  buf->len = sizeof(base);
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}
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static void read_cb(uv_stream_t* handle,
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                    ssize_t nread,
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                    const uv_buf_t* buf) {
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  uv_pipe_t* p;
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  uv_pipe_t* inc;
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  uv_handle_type pending;
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  unsigned int i;
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  p = (uv_pipe_t*) handle;
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  ASSERT_GE(nread, 0);
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  while (uv_pipe_pending_count(p) != 0) {
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    pending = uv_pipe_pending_type(p);
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    ASSERT_EQ(pending, UV_NAMED_PIPE);
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    ASSERT_LT(incoming_count, ARRAY_SIZE(incoming));
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    inc = &incoming[incoming_count++];
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    ASSERT_OK(uv_pipe_init(p->loop, inc, 0));
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    ASSERT_OK(uv_accept(handle, (uv_stream_t*) inc));
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  }
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  if (incoming_count != ARRAY_SIZE(incoming))
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    return;
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  ASSERT_OK(uv_read_stop((uv_stream_t*) p));
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  uv_close((uv_handle_t*) p, close_cb);
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  for (i = 0; i < ARRAY_SIZE(incoming); i++)
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    uv_close((uv_handle_t*) &incoming[i], close_cb);
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}
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TEST_IMPL(pipe_sendmsg) {
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#if defined(NO_SEND_HANDLE_ON_PIPE)
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  RETURN_SKIP(NO_SEND_HANDLE_ON_PIPE);
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#endif
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  uv_pipe_t p;
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  int r;
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  int fds[2];
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  int send_fds[ARRAY_SIZE(incoming)];
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  struct msghdr msg;
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  char scratch[64];
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  struct cmsghdr *cmsg;
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  unsigned int i;
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  uv_buf_t buf;
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  ASSERT_OK(socketpair(AF_UNIX, SOCK_STREAM, 0, fds));
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  for (i = 0; i < ARRAY_SIZE(send_fds); i += 2)
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    ASSERT_OK(socketpair(AF_UNIX, SOCK_STREAM, 0, send_fds + i));
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  ASSERT_EQ(i, ARRAY_SIZE(send_fds));
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  ASSERT_OK(uv_pipe_init(uv_default_loop(), &p, 1));
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  ASSERT_OK(uv_pipe_open(&p, fds[1]));
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  buf = uv_buf_init("X", 1);
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  memset(&msg, 0, sizeof(msg));
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  msg.msg_iov = (struct iovec*) &buf;
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  msg.msg_iovlen = 1;
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  msg.msg_flags = 0;
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  msg.msg_control = (void*) scratch;
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  msg.msg_controllen = CMSG_LEN(sizeof(send_fds));
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  ASSERT_GE(sizeof(scratch), msg.msg_controllen);
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  cmsg = CMSG_FIRSTHDR(&msg);
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  cmsg->cmsg_level = SOL_SOCKET;
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  cmsg->cmsg_type = SCM_RIGHTS;
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  cmsg->cmsg_len = msg.msg_controllen;
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  /* silence aliasing warning */
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  {
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    void* pv = CMSG_DATA(cmsg);
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    int* pi = pv;
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    for (i = 0; i < ARRAY_SIZE(send_fds); i++)
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      pi[i] = send_fds[i];
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  }
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  set_nonblocking(fds[1]);
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  ASSERT_OK(uv_read_start((uv_stream_t*) &p, alloc_cb, read_cb));
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  do
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    r = sendmsg(fds[0], &msg, 0);
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  while (r == -1 && errno == EINTR);
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  ASSERT_EQ(1, r);
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  uv_run(uv_default_loop(), UV_RUN_DEFAULT);
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  ASSERT_EQ(ARRAY_SIZE(incoming), incoming_count);
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  ASSERT_EQ(ARRAY_SIZE(incoming) + 1, close_called);
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  close(fds[0]);
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  MAKE_VALGRIND_HAPPY(uv_default_loop());
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  return 0;
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}
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#else  /* !_WIN32 */
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TEST_IMPL(pipe_sendmsg) {
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  MAKE_VALGRIND_HAPPY(uv_default_loop());
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  return 0;
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}
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#endif  /* _WIN32 */
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