xref: /libuv/test/test-udp-multicast-ttl.c (revision 011a1ac1)
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14  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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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) == &server || (uv_udp_t*)(handle) == &client, 0)
31 
32 static uv_udp_t server;
33 static uv_udp_t client;
34 
35 static int sv_send_cb_called;
36 static int close_cb_called;
37 
38 
close_cb(uv_handle_t * handle)39 static void close_cb(uv_handle_t* handle) {
40   CHECK_HANDLE(handle);
41   close_cb_called++;
42 }
43 
44 
sv_send_cb(uv_udp_send_t * req,int status)45 static void sv_send_cb(uv_udp_send_t* req, int status) {
46   ASSERT_NOT_NULL(req);
47   ASSERT(status == 0 || status == UV_ENETUNREACH || status == UV_EPERM);
48   CHECK_HANDLE(req->handle);
49 
50   sv_send_cb_called++;
51 
52   uv_close((uv_handle_t*) req->handle, close_cb);
53 }
54 
55 
TEST_IMPL(udp_multicast_ttl)56 TEST_IMPL(udp_multicast_ttl) {
57   int r;
58   uv_udp_send_t req;
59   uv_buf_t buf;
60   struct sockaddr_in addr;
61 
62   r = uv_udp_init(uv_default_loop(), &server);
63   ASSERT_OK(r);
64 
65   ASSERT_OK(uv_ip4_addr("0.0.0.0", 0, &addr));
66   r = uv_udp_bind(&server, (const struct sockaddr*) &addr, 0);
67   ASSERT_OK(r);
68 
69   r = uv_udp_set_multicast_ttl(&server, 32);
70   ASSERT_OK(r);
71 
72   /* server sends "PING" */
73   buf = uv_buf_init("PING", 4);
74   ASSERT_OK(uv_ip4_addr("239.255.0.1", TEST_PORT, &addr));
75   r = uv_udp_send(&req,
76                   &server,
77                   &buf,
78                   1,
79                   (const struct sockaddr*) &addr,
80                   sv_send_cb);
81   ASSERT_OK(r);
82 
83   ASSERT_OK(close_cb_called);
84   ASSERT_OK(sv_send_cb_called);
85 
86   /* run the loop till all events are processed */
87   uv_run(uv_default_loop(), UV_RUN_DEFAULT);
88 
89   ASSERT_EQ(1, sv_send_cb_called);
90   ASSERT_EQ(1, close_cb_called);
91 
92   MAKE_VALGRIND_HAPPY(uv_default_loop());
93   return 0;
94 }
95