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1 /* Copyright libuv contributors. All rights reserved.
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2 *
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3 * Permission is hereby granted, free of charge, to any person obtaining a copy
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4 * of this software and associated documentation files (the "Software"), to
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5 * deal in the Software without restriction, including without limitation the
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6 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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7 * sell copies of the Software, and to permit persons to whom the Software is
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8 * furnished to do so, subject to the following conditions:
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9 *
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10 * The above copyright notice and this permission notice shall be included in
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11 * all copies or substantial portions of the Software.
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12 *
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13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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16 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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18 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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19 * IN THE SOFTWARE.
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20 */
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21
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22 #include "uv.h"
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23 #include "task.h"
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24 #include <string.h>
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25
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26 TEST_IMPL(gethostname) {
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27 char buf[UV_MAXHOSTNAMESIZE];
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28 size_t size;
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29 size_t enobufs_size;
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30 int r;
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31
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32 /* Reject invalid inputs */
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33 size = 1;
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34 r = uv_os_gethostname(NULL, &size);
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35 ASSERT_EQ(r, UV_EINVAL);
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36 r = uv_os_gethostname(buf, NULL);
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37 ASSERT_EQ(r, UV_EINVAL);
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38 size = 0;
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39 r = uv_os_gethostname(buf, &size);
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40 ASSERT_EQ(r, UV_EINVAL);
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41
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42 /* Return UV_ENOBUFS if the buffer cannot hold the hostname */
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43 enobufs_size = 1;
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44 buf[0] = '\0';
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45 r = uv_os_gethostname(buf, &enobufs_size);
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46 ASSERT_EQ(r, UV_ENOBUFS);
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47 ASSERT_EQ(buf[0], '\0');
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48 ASSERT_GT(enobufs_size, 1);
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49
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50 /* Successfully get the hostname */
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51 size = UV_MAXHOSTNAMESIZE;
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52 r = uv_os_gethostname(buf, &size);
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53 ASSERT_OK(r);
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54 ASSERT(size > 0 && size == strlen(buf));
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55 ASSERT_EQ(size + 1, enobufs_size);
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56
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57 return 0;
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58 }
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