1 /* Copyright libuv 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 #include <string.h>
25
TEST_IMPL(gethostname)26 TEST_IMPL(gethostname) {
27 char buf[UV_MAXHOSTNAMESIZE];
28 size_t size;
29 size_t enobufs_size;
30 int r;
31
32 /* Reject invalid inputs */
33 size = 1;
34 r = uv_os_gethostname(NULL, &size);
35 ASSERT_EQ(r, UV_EINVAL);
36 r = uv_os_gethostname(buf, NULL);
37 ASSERT_EQ(r, UV_EINVAL);
38 size = 0;
39 r = uv_os_gethostname(buf, &size);
40 ASSERT_EQ(r, UV_EINVAL);
41
42 /* Return UV_ENOBUFS if the buffer cannot hold the hostname */
43 enobufs_size = 1;
44 buf[0] = '\0';
45 r = uv_os_gethostname(buf, &enobufs_size);
46 ASSERT_EQ(r, UV_ENOBUFS);
47 ASSERT_EQ(buf[0], '\0');
48 ASSERT_GT(enobufs_size, 1);
49
50 /* Successfully get the hostname */
51 size = UV_MAXHOSTNAMESIZE;
52 r = uv_os_gethostname(buf, &size);
53 ASSERT_OK(r);
54 ASSERT(size > 0 && size == strlen(buf));
55 ASSERT_EQ(size + 1, enobufs_size);
56
57 return 0;
58 }
59
