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annotate tests/test-gethostname.c @ 10692:b867b19bccb3

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Add gethostname() declaration to <unistd.h>.
author Bruno Haible <bruno@clisp.org>
date Tue, 21 Oct 2008 13:13:09 +0200
parents ae66ca8fbe28
children b465c20bb96c
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1 /*
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2 * Copyright (C) 2008 Free Software Foundation
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3 * Written by Simon Josefsson.
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4 *
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5 * This program is free software: you can redistribute it and/or modify
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6 * it under the terms of the GNU General Public License as published by
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7 * the Free Software Foundation; either version 3 of the License, or
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8 * (at your option) any later version.
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9 *
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10 * This program is distributed in the hope that it will be useful,
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11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 * GNU General Public License for more details.
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14 *
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15 * You should have received a copy of the GNU General Public License
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16 * along with this program. If not, see <http://www.gnu.org/licenses/>. */
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17
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18 #include <config.h>
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19
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20 #include <unistd.h>
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21
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22 #include <stdio.h>
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23 #include <string.h>
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24 #include <errno.h>
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25
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26 #define NOHOSTNAME "magic-gnulib-test-string"
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27
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28 int
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29 main (int argc, char *argv[])
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30 {
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31 char buf[2500];
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32 int rc;
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33
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34 strcpy (buf, NOHOSTNAME);
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35
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36 rc = gethostname (buf, sizeof (buf));
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37
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38 if (rc != 0)
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39 {
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40 printf ("gethostname failed, rc %d errno %d\n", rc, errno);
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41 return 1;
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42 }
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43
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44 if (strcmp (buf, NOHOSTNAME) == 0)
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45 {
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46 printf ("gethostname left buffer untouched.\n");
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47 return 1;
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48 }
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49
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50 if (argc > 1)
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51 printf ("hostname: %s\n", buf);
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52
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53 return 0;
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54 }