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comparison third_party/libuv/test/test-udp-send-unreachable.c @ 160:948de3f54cea

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[ThirdParty] Added libuv
author June Park <parkjune1995@gmail.com>
date Wed, 14 Jan 2026 19:39:52 -0800
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159:05cf9467a1c3 160:948de3f54cea
1 /* Copyright Joyent, Inc. and other Node 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_NE((uv_udp_t*)(handle) == &client || (uv_udp_t*)(handle) == &client2, 0)
31
32 static uv_udp_t client;
33 static uv_udp_t client2;
34 static uv_timer_t timer;
35
36 static int send_cb_called;
37 static int recv_cb_called;
38 static int close_cb_called;
39 static int alloc_cb_called;
40 static int timer_cb_called;
41 static int can_recverr;
42
43
44 static void alloc_cb(uv_handle_t* handle,
45 size_t suggested_size,
46 uv_buf_t* buf) {
47 static char slab[65536];
48 CHECK_HANDLE(handle);
49 ASSERT_LE(suggested_size, sizeof(slab));
50 buf->base = slab;
51 buf->len = sizeof(slab);
52 alloc_cb_called++;
53 }
54
55
56 static void close_cb(uv_handle_t* handle) {
57 ASSERT_EQ(1, uv_is_closing(handle));
58 close_cb_called++;
59 }
60
61
62 static void send_cb(uv_udp_send_t* req, int status) {
63 ASSERT_NOT_NULL(req);
64 ASSERT_OK(status);
65 ASSERT_OK(status);
66 CHECK_HANDLE(req->handle);
67 send_cb_called++;
68 }
69
70 static void send_cb_recverr(uv_udp_send_t* req, int status) {
71 ASSERT_PTR_NE(req, NULL);
72 ASSERT(status == 0 || status == UV_ECONNREFUSED);
73 CHECK_HANDLE(req->handle);
74 send_cb_called++;
75 }
76
77 static void recv_cb(uv_udp_t* handle,
78 ssize_t nread,
79 const uv_buf_t* rcvbuf,
80 const struct sockaddr* addr,
81 unsigned flags) {
82 CHECK_HANDLE(handle);
83 recv_cb_called++;
84
85 if (nread < 0) {
86 ASSERT(0 && "unexpected error");
87 } else if (nread == 0) {
88 /* Returning unused buffer */
89 ASSERT_NULL(addr);
90 } else {
91 ASSERT_NOT_NULL(addr);
92 }
93 }
94
95
96 static void timer_cb(uv_timer_t* h) {
97 ASSERT_PTR_EQ(h, &timer);
98 timer_cb_called++;
99 uv_close((uv_handle_t*) &client, close_cb);
100 if (can_recverr)
101 uv_close((uv_handle_t*) &client2, close_cb);
102 uv_close((uv_handle_t*) h, close_cb);
103 }
104
105
106 TEST_IMPL(udp_send_unreachable) {
107 struct sockaddr_in addr;
108 struct sockaddr_in addr2;
109 struct sockaddr_in addr3;
110 uv_udp_send_t req1, req2, req3, req4;
111 uv_buf_t buf;
112 int r;
113
114 #ifdef __linux__
115 can_recverr = 1;
116 #endif
117
118 ASSERT_OK(uv_ip4_addr("127.0.0.1", TEST_PORT, &addr));
119 ASSERT_OK(uv_ip4_addr("127.0.0.1", TEST_PORT_2, &addr2));
120 ASSERT_OK(uv_ip4_addr("127.0.0.1", TEST_PORT_3, &addr3));
121
122 r = uv_timer_init( uv_default_loop(), &timer );
123 ASSERT_OK(r);
124
125 r = uv_timer_start( &timer, timer_cb, 1000, 0 );
126 ASSERT_OK(r);
127
128 r = uv_udp_init(uv_default_loop(), &client);
129 ASSERT_OK(r);
130
131 r = uv_udp_bind(&client, (const struct sockaddr*) &addr2, 0);
132 ASSERT_OK(r);
133
134 r = uv_udp_recv_start(&client, alloc_cb, recv_cb);
135 ASSERT_OK(r);
136
137 /* client sends "PING", then "PANG" */
138 buf = uv_buf_init("PING", 4);
139
140 r = uv_udp_send(&req1,
141 &client,
142 &buf,
143 1,
144 (const struct sockaddr*) &addr,
145 send_cb);
146 ASSERT_OK(r);
147
148 buf = uv_buf_init("PANG", 4);
149
150 r = uv_udp_send(&req2,
151 &client,
152 &buf,
153 1,
154 (const struct sockaddr*) &addr,
155 send_cb);
156 ASSERT_OK(r);
157
158 if (can_recverr) {
159 r = uv_udp_init(uv_default_loop(), &client2);
160 ASSERT_OK(r);
161
162 r = uv_udp_bind(&client2,
163 (const struct sockaddr*) &addr3,
164 UV_UDP_LINUX_RECVERR);
165 ASSERT_OK(r);
166
167 r = uv_udp_recv_start(&client2, alloc_cb, recv_cb);
168 ASSERT_OK(r);
169
170 /* client sends "PING", then "PANG" */
171 buf = uv_buf_init("PING", 4);
172
173 r = uv_udp_send(&req3,
174 &client2,
175 &buf,
176 1,
177 (const struct sockaddr*) &addr,
178 send_cb_recverr);
179 ASSERT_OK(r);
180
181 buf = uv_buf_init("PANG", 4);
182
183 r = uv_udp_send(&req4,
184 &client2,
185 &buf,
186 1,
187 (const struct sockaddr*) &addr,
188 send_cb_recverr);
189 ASSERT_OK(r);
190 }
191
192 uv_run(uv_default_loop(), UV_RUN_DEFAULT);
193
194 ASSERT_EQ(send_cb_called, (long)(can_recverr ? 4 : 2));
195 ASSERT_EQ(recv_cb_called, alloc_cb_called);
196 ASSERT_EQ(1, timer_cb_called);
197 ASSERT_EQ(close_cb_called, (long)(can_recverr ? 3 : 2));
198
199 MAKE_VALGRIND_HAPPY(uv_default_loop());
200 return 0;
201 }