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(req != NULL); |
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(addr != NULL); |
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 | ASSERT(0 == uv_ip4_addr("8.8.8.8" , TEST_PORT, &ext_addr)); |
124 | ASSERT(0 == uv_ip4_addr("127.0.0.1" , TEST_PORT, &lo_addr)); |
125 | |
126 | r = uv_udp_connect(&client, (const struct sockaddr*) &lo_addr); |
127 | ASSERT(r == 0); |
128 | r = uv_udp_connect(&client, (const struct sockaddr*) &ext_addr); |
129 | ASSERT(r == UV_EISCONN); |
130 | |
131 | addrlen = sizeof(tmp_addr); |
132 | r = uv_udp_getpeername(&client, (struct sockaddr*) &tmp_addr, &addrlen); |
133 | ASSERT(r == 0); |
134 | |
135 | /* To send messages in connected UDP sockets addr must be NULL */ |
136 | r = uv_udp_try_send(&client, &buf, 1, (const struct sockaddr*) &lo_addr); |
137 | ASSERT(r == UV_EISCONN); |
138 | r = uv_udp_try_send(&client, &buf, 1, NULL); |
139 | ASSERT(r == 4); |
140 | r = uv_udp_try_send(&client, &buf, 1, (const struct sockaddr*) &ext_addr); |
141 | ASSERT(r == UV_EISCONN); |
142 | |
143 | r = uv_udp_connect(&client, NULL); |
144 | ASSERT(r == 0); |
145 | r = uv_udp_connect(&client, NULL); |
146 | ASSERT(r == UV_ENOTCONN); |
147 | |
148 | addrlen = sizeof(tmp_addr); |
149 | r = uv_udp_getpeername(&client, (struct sockaddr*) &tmp_addr, &addrlen); |
150 | ASSERT(r == UV_ENOTCONN); |
151 | |
152 | /* To send messages in disconnected UDP sockets addr must be set */ |
153 | r = uv_udp_try_send(&client, &buf, 1, (const struct sockaddr*) &lo_addr); |
154 | ASSERT(r == 4); |
155 | r = uv_udp_try_send(&client, &buf, 1, NULL); |
156 | ASSERT(r == UV_EDESTADDRREQ); |
157 | |
158 | |
159 | r = uv_udp_connect(&client, (const struct sockaddr*) &lo_addr); |
160 | ASSERT(r == 0); |
161 | r = uv_udp_send(&req, |
162 | &client, |
163 | &buf, |
164 | 1, |
165 | (const struct sockaddr*) &lo_addr, |
166 | cl_send_cb); |
167 | ASSERT(r == UV_EISCONN); |
168 | r = uv_udp_send(&req, &client, &buf, 1, NULL, cl_send_cb); |
169 | ASSERT(r == 0); |
170 | |
171 | uv_run(uv_default_loop(), UV_RUN_DEFAULT); |
172 | |
173 | ASSERT(close_cb_called == 2); |
174 | ASSERT(sv_recv_cb_called == 4); |
175 | ASSERT(cl_send_cb_called == 2); |
176 | |
177 | ASSERT(client.send_queue_size == 0); |
178 | ASSERT(server.send_queue_size == 0); |
179 | |
180 | MAKE_VALGRIND_HAPPY(); |
181 | return 0; |
182 | } |
183 | |