1 /* Copyright libuv project and contributors. All rights reserved. 2 * 3 * Permission is hereby granted, free of charge, to any person obtaining a copy 4 * of this software and associated documentation files (the "Software"), to 5 * deal in the Software without restriction, including without limitation the 6 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 7 * sell copies of the Software, and to permit persons to whom the Software is 8 * furnished to do so, subject to the following conditions: 9 * 10 * The above copyright notice and this permission notice shall be included in 11 * all copies or substantial portions of the Software. 12 * 13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 16 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 18 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 19 * IN THE SOFTWARE. 20 */ 21 22 #include "uv.h" 23 #include "task.h" 24 25 #include <stdio.h> 26 #include <stdlib.h> 27 #include <string.h> 28 29 #define CHECK_HANDLE(handle) \ 30 ASSERT((uv_udp_t*)(handle) == &server || (uv_udp_t*)(handle) == &client) 31 32 static uv_udp_t server; 33 static uv_udp_t client; 34 static uv_buf_t buf; 35 static struct sockaddr_in lo_addr; 36 37 static int cl_send_cb_called; 38 static int sv_recv_cb_called; 39 40 static int close_cb_called; 41 42 43 static void alloc_cb(uv_handle_t* handle, 44 size_t suggested_size, 45 uv_buf_t* buf) { 46 static char slab[65536]; 47 CHECK_HANDLE(handle); 48 ASSERT(suggested_size <= sizeof(slab)); 49 buf->base = slab; 50 buf->len = sizeof(slab); 51 } 52 53 54 static void close_cb(uv_handle_t* handle) { 55 CHECK_HANDLE(handle); 56 ASSERT(uv_is_closing(handle)); 57 close_cb_called++; 58 } 59 60 61 static void cl_send_cb(uv_udp_send_t* req, int status) { 62 int r; 63 64 ASSERT_NOT_NULL(req); 65 ASSERT(status == 0); 66 CHECK_HANDLE(req->handle); 67 if (++cl_send_cb_called == 1) { 68 uv_udp_connect(&client, NULL); 69 r = uv_udp_send(req, &client, &buf, 1, NULL, cl_send_cb); 70 ASSERT(r == UV_EDESTADDRREQ); 71 r = uv_udp_send(req, 72 &client, 73 &buf, 74 1, 75 (const struct sockaddr*) &lo_addr, 76 cl_send_cb); 77 ASSERT(r == 0); 78 } 79 80 } 81 82 83 static void sv_recv_cb(uv_udp_t* handle, 84 ssize_t nread, 85 const uv_buf_t* rcvbuf, 86 const struct sockaddr* addr, 87 unsigned flags) { 88 if (nread > 0) { 89 ASSERT(nread == 4); 90 ASSERT_NOT_NULL(addr); 91 ASSERT(memcmp("EXIT", rcvbuf->base, nread) == 0); 92 if (++sv_recv_cb_called == 4) { 93 uv_close((uv_handle_t*) &server, close_cb); 94 uv_close((uv_handle_t*) &client, close_cb); 95 } 96 } 97 } 98 99 100 TEST_IMPL(udp_connect) { 101 uv_udp_send_t req; 102 struct sockaddr_in ext_addr; 103 struct sockaddr_in tmp_addr; 104 int r; 105 int addrlen; 106 107 ASSERT(0 == uv_ip4_addr("0.0.0.0", TEST_PORT, &lo_addr)); 108 109 r = uv_udp_init(uv_default_loop(), &server); 110 ASSERT(r == 0); 111 112 r = uv_udp_bind(&server, (const struct sockaddr*) &lo_addr, 0); 113 ASSERT(r == 0); 114 115 r = uv_udp_recv_start(&server, alloc_cb, sv_recv_cb); 116 ASSERT(r == 0); 117 118 r = uv_udp_init(uv_default_loop(), &client); 119 ASSERT(r == 0); 120 121 buf = uv_buf_init("EXIT", 4); 122 123 /* connect() to INADDR_ANY fails on Windows with WSAEADDRNOTAVAIL */ 124 ASSERT_EQ(0, uv_ip4_addr("0.0.0.0", TEST_PORT, &tmp_addr)); 125 r = uv_udp_connect(&client, (const struct sockaddr*) &tmp_addr); 126 #ifdef _WIN32 127 ASSERT_EQ(r, UV_EADDRNOTAVAIL); 128 #else 129 ASSERT_EQ(r, 0); 130 r = uv_udp_connect(&client, NULL); 131 ASSERT_EQ(r, 0); 132 #endif 133 134 ASSERT(0 == uv_ip4_addr("8.8.8.8", TEST_PORT, &ext_addr)); 135 ASSERT(0 == uv_ip4_addr("127.0.0.1", TEST_PORT, &lo_addr)); 136 137 r = uv_udp_connect(&client, (const struct sockaddr*) &lo_addr); 138 ASSERT(r == 0); 139 r = uv_udp_connect(&client, (const struct sockaddr*) &ext_addr); 140 ASSERT(r == UV_EISCONN); 141 142 addrlen = sizeof(tmp_addr); 143 r = uv_udp_getpeername(&client, (struct sockaddr*) &tmp_addr, &addrlen); 144 ASSERT(r == 0); 145 146 /* To send messages in connected UDP sockets addr must be NULL */ 147 r = uv_udp_try_send(&client, &buf, 1, (const struct sockaddr*) &lo_addr); 148 ASSERT(r == UV_EISCONN); 149 r = uv_udp_try_send(&client, &buf, 1, NULL); 150 ASSERT(r == 4); 151 r = uv_udp_try_send(&client, &buf, 1, (const struct sockaddr*) &ext_addr); 152 ASSERT(r == UV_EISCONN); 153 154 r = uv_udp_connect(&client, NULL); 155 ASSERT(r == 0); 156 r = uv_udp_connect(&client, NULL); 157 ASSERT(r == UV_ENOTCONN); 158 159 addrlen = sizeof(tmp_addr); 160 r = uv_udp_getpeername(&client, (struct sockaddr*) &tmp_addr, &addrlen); 161 ASSERT(r == UV_ENOTCONN); 162 163 /* To send messages in disconnected UDP sockets addr must be set */ 164 r = uv_udp_try_send(&client, &buf, 1, (const struct sockaddr*) &lo_addr); 165 ASSERT(r == 4); 166 r = uv_udp_try_send(&client, &buf, 1, NULL); 167 ASSERT(r == UV_EDESTADDRREQ); 168 169 170 r = uv_udp_connect(&client, (const struct sockaddr*) &lo_addr); 171 ASSERT(r == 0); 172 r = uv_udp_send(&req, 173 &client, 174 &buf, 175 1, 176 (const struct sockaddr*) &lo_addr, 177 cl_send_cb); 178 ASSERT(r == UV_EISCONN); 179 r = uv_udp_send(&req, &client, &buf, 1, NULL, cl_send_cb); 180 ASSERT(r == 0); 181 182 uv_run(uv_default_loop(), UV_RUN_DEFAULT); 183 184 ASSERT(close_cb_called == 2); 185 ASSERT(sv_recv_cb_called == 4); 186 ASSERT(cl_send_cb_called == 2); 187 188 ASSERT(client.send_queue_size == 0); 189 ASSERT(server.send_queue_size == 0); 190 191 MAKE_VALGRIND_HAPPY(); 192 return 0; 193 } 194