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libuv/test/test-udp-ipv6.c  view on Meta::CPAN

/* 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(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__NetBSD__)
#include <sys/sysctl.h>
#endif

#define CHECK_HANDLE(handle)                \
  ASSERT((uv_udp_t*)(handle) == &server     \
      || (uv_udp_t*)(handle) == &client     \
      || (uv_timer_t*)(handle) == &timeout)

#define CHECK_REQ(req) \
  ASSERT((req) == &req_);

static uv_udp_t client;
static uv_udp_t server;
static uv_udp_send_t req_;
static uv_timer_t timeout;

static int send_cb_called;
static int recv_cb_called;
static int close_cb_called;

#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__NetBSD__)
static int can_ipv6_ipv4_dual(void) {
  int v6only;
  size_t size = sizeof(int);

  if (sysctlbyname("net.inet6.ip6.v6only", &v6only, &size, NULL, 0))
    return 0;

  return v6only != 1;
}
#endif


static void alloc_cb(uv_handle_t* handle,
                     size_t suggested_size,
                     uv_buf_t* buf) {
  static char slab[65536];
  CHECK_HANDLE(handle);
  buf->base = slab;
  buf->len = sizeof(slab);
}


static void close_cb(uv_handle_t* handle) {
  CHECK_HANDLE(handle);
  close_cb_called++;
}


static void send_cb(uv_udp_send_t* req, int status) {
  CHECK_REQ(req);
  CHECK_HANDLE(req->handle);
  ASSERT(status == 0);
  send_cb_called++;
}


static void ipv6_recv_fail(uv_udp_t* handle,
                           ssize_t nread,
                           const uv_buf_t* buf,
                           const struct sockaddr* addr,
                           unsigned flags) {
  ASSERT(0 && "this function should not have been called");
}


static void ipv6_recv_ok(uv_udp_t* handle,
                         ssize_t nread,
                         const uv_buf_t* buf,
                         const struct sockaddr* addr,
                         unsigned flags) {
  CHECK_HANDLE(handle);
  ASSERT(nread >= 0);

  if (nread)
    recv_cb_called++;
}


static void timeout_cb(uv_timer_t* timer) {
  uv_close((uv_handle_t*)&server, close_cb);
  uv_close((uv_handle_t*)&client, close_cb);
  uv_close((uv_handle_t*)&timeout, close_cb);
}