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
25static uv_tcp_t tcp;
26static uv_connect_t connect_req;
27static uv_buf_t qbuf;
28static int called_alloc_cb;
29static int called_connect_cb;
30static int called_close_cb;
31
32
33static void close_cb(uv_handle_t* handle) {
34  ASSERT(handle == (uv_handle_t*) &tcp);
35  called_close_cb++;
36}
37
38
39static void alloc_cb(uv_handle_t* handle, size_t size, uv_buf_t* buf) {
40  buf->base = malloc(size);
41  buf->len = size;
42  called_alloc_cb++;
43}
44
45
46static void read_cb(uv_stream_t* t, ssize_t nread, const uv_buf_t* buf) {
47  ASSERT_PTR_EQ((uv_tcp_t*) t, &tcp);
48  ASSERT_EQ(nread, UV_ECONNRESET);
49
50  int fd;
51  ASSERT_EQ(0, uv_fileno((uv_handle_t*) t, &fd));
52  uv_handle_type type = uv_guess_handle(fd);
53  ASSERT_EQ(type, UV_TCP);
54
55  uv_close((uv_handle_t *) t, close_cb);
56  free(buf->base);
57}
58
59
60static void connect_cb(uv_connect_t *req, int status) {
61  ASSERT_EQ(status, 0);
62  ASSERT_PTR_EQ(req, &connect_req);
63
64  /* Start reading from the connection so we receive the RST in uv__read. */
65  ASSERT_EQ(0, uv_read_start((uv_stream_t*) &tcp, alloc_cb, read_cb));
66
67  /* Write 'QSH' to receive RST from the echo server. */
68  ASSERT_EQ(qbuf.len, uv_try_write((uv_stream_t*) &tcp, &qbuf, 1));
69
70  called_connect_cb++;
71}
72
73
74/*
75 * This test has a client which connects to the echo_server and receives TCP
76 * RST. Test checks that uv_guess_handle still works on a reset TCP handle.
77 */
78TEST_IMPL(tcp_rst) {
79#ifndef _WIN32
80  struct sockaddr_in server_addr;
81  int r;
82
83  qbuf.base = "QSH";
84  qbuf.len = 3;
85
86  ASSERT_EQ(0, uv_ip4_addr("127.0.0.1", TEST_PORT, &server_addr));
87  r = uv_tcp_init(uv_default_loop(), &tcp);
88  ASSERT_EQ(r, 0);
89
90  r = uv_tcp_connect(&connect_req,
91                     &tcp,
92                     (const struct sockaddr*) &server_addr,
93                     connect_cb);
94  ASSERT_EQ(r, 0);
95
96  uv_run(uv_default_loop(), UV_RUN_DEFAULT);
97
98  ASSERT_EQ(called_alloc_cb, 1);
99  ASSERT_EQ(called_connect_cb, 1);
100  ASSERT_EQ(called_close_cb, 1);
101
102  MAKE_VALGRIND_HAPPY();
103  return 0;
104#else
105  RETURN_SKIP("Unix only test");
106#endif
107}
108