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/* Copyright libuv project and 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>
#define CHECK_HANDLE(handle) \
ASSERT_NE((uv_udp_t*)(handle) == &server || (uv_udp_t*)(handle) == &client, 0)
static uv_udp_t server;
static uv_udp_t client;
static uv_buf_t buf;
static struct sockaddr_in lo_addr;
static int cl_send_cb_called;
static int sv_recv_cb_called;
static int close_cb_called;
static void alloc_cb(uv_handle_t* handle,
size_t suggested_size,
uv_buf_t* buf) {
static char slab[65536];
CHECK_HANDLE(handle);
ASSERT_LE(suggested_size, sizeof(slab));
buf->base = slab;
buf->len = sizeof(slab);
}
static void close_cb(uv_handle_t* handle) {
CHECK_HANDLE(handle);
ASSERT(uv_is_closing(handle));
close_cb_called++;
}
static void cl_send_cb(uv_udp_send_t* req, int status) {
int r;
ASSERT_NOT_NULL(req);
ASSERT_OK(status);
CHECK_HANDLE(req->handle);
if (++cl_send_cb_called == 1) {
uv_udp_connect(&client, NULL);
r = uv_udp_send(req, &client, &buf, 1, NULL, cl_send_cb);
ASSERT_EQ(r, UV_EDESTADDRREQ);
r = uv_udp_send(req,
&client,
&buf,
1,
(const struct sockaddr*) &lo_addr,
cl_send_cb);
ASSERT_OK(r);
}
}
static void sv_recv_cb(uv_udp_t* handle,
ssize_t nread,
const uv_buf_t* rcvbuf,
const struct sockaddr* addr,
unsigned flags) {
if (nread > 0) {
ASSERT_EQ(4, nread);
ASSERT_NOT_NULL(addr);
ASSERT_OK(memcmp("EXIT", rcvbuf->base, nread));
if (++sv_recv_cb_called == 4) {
uv_close((uv_handle_t*) &server, close_cb);
uv_close((uv_handle_t*) &client, close_cb);
}
}
}
TEST_IMPL(udp_connect) {
#if defined(__OpenBSD__)
RETURN_SKIP("Test does not currently work in OpenBSD");
#endif
uv_udp_send_t req;
struct sockaddr_in ext_addr;
struct sockaddr_in tmp_addr;
int r;
int addrlen;
ASSERT_OK(uv_ip4_addr("0.0.0.0", TEST_PORT, &lo_addr));
r = uv_udp_init(uv_default_loop(), &server);
ASSERT_OK(r);
r = uv_udp_bind(&server, (const struct sockaddr*) &lo_addr, 0);
ASSERT_OK(r);
r = uv_udp_recv_start(&server, alloc_cb, sv_recv_cb);
ASSERT_OK(r);
r = uv_udp_init(uv_default_loop(), &client);
ASSERT_OK(r);
buf = uv_buf_init("EXIT", 4);
/* connect() to INADDR_ANY fails on Windows with WSAEADDRNOTAVAIL */
ASSERT_OK(uv_ip4_addr("0.0.0.0", TEST_PORT, &tmp_addr));
r = uv_udp_connect(&client, (const struct sockaddr*) &tmp_addr);
#ifdef _WIN32
ASSERT_EQ(r, UV_EADDRNOTAVAIL);
#else
ASSERT_OK(r);
r = uv_udp_connect(&client, NULL);
ASSERT_OK(r);
#endif
ASSERT_OK(uv_ip4_addr("8.8.8.8", TEST_PORT, &ext_addr));
ASSERT_OK(uv_ip4_addr("127.0.0.1", TEST_PORT, &lo_addr));
r = uv_udp_connect(&client, (const struct sockaddr*) &lo_addr);
ASSERT_OK(r);
r = uv_udp_connect(&client, (const struct sockaddr*) &ext_addr);
ASSERT_EQ(r, UV_EISCONN);
addrlen = sizeof(tmp_addr);
r = uv_udp_getpeername(&client, (struct sockaddr*) &tmp_addr, &addrlen);
ASSERT_OK(r);
/* To send messages in connected UDP sockets addr must be NULL */
r = uv_udp_try_send(&client, &buf, 1, (const struct sockaddr*) &lo_addr);
ASSERT_EQ(r, UV_EISCONN);
r = uv_udp_try_send(&client, &buf, 1, NULL);
ASSERT_EQ(4, r);
r = uv_udp_try_send(&client, &buf, 1, (const struct sockaddr*) &ext_addr);
ASSERT_EQ(r, UV_EISCONN);
r = uv_udp_connect(&client, NULL);
ASSERT_OK(r);
r = uv_udp_connect(&client, NULL);
ASSERT_EQ(r, UV_ENOTCONN);
addrlen = sizeof(tmp_addr);
r = uv_udp_getpeername(&client, (struct sockaddr*) &tmp_addr, &addrlen);
ASSERT_EQ(r, UV_ENOTCONN);
/* To send messages in disconnected UDP sockets addr must be set */
r = uv_udp_try_send(&client, &buf, 1, (const struct sockaddr*) &lo_addr);
ASSERT_EQ(4, r);
r = uv_udp_try_send(&client, &buf, 1, NULL);
ASSERT_EQ(r, UV_EDESTADDRREQ);
r = uv_udp_connect(&client, (const struct sockaddr*) &lo_addr);
ASSERT_OK(r);
r = uv_udp_send(&req,
&client,
&buf,
1,
(const struct sockaddr*) &lo_addr,
cl_send_cb);
ASSERT_EQ(r, UV_EISCONN);
r = uv_udp_send(&req, &client, &buf, 1, NULL, cl_send_cb);
ASSERT_OK(r);
uv_run(uv_default_loop(), UV_RUN_DEFAULT);
ASSERT_EQ(2, close_cb_called);
ASSERT_EQ(4, sv_recv_cb_called);
ASSERT_EQ(2, cl_send_cb_called);
ASSERT_OK(client.send_queue_size);
ASSERT_OK(server.send_queue_size);
MAKE_VALGRIND_HAPPY(uv_default_loop());
return 0;
}
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