2 * Copyright (C) 2008-2017 Free Software Foundation, Inc.
3 * Written by Simon Josefsson.
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 3 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>. */
20 /* Get gethostname() declaration. */
23 #include "signature.h"
24 SIGNATURE_CHECK (gethostname
, int, (char *, size_t));
26 /* Get HOST_NAME_MAX definition. */
33 #define NOHOSTNAME "magic-gnulib-test-string"
36 main (int argc
, char *argv
[] _GL_UNUSED
)
38 char buf
[HOST_NAME_MAX
];
41 if (strlen (NOHOSTNAME
) >= HOST_NAME_MAX
)
43 printf ("HOST_NAME_MAX impossibly small?! %d\n", HOST_NAME_MAX
);
47 strcpy (buf
, NOHOSTNAME
);
49 rc
= gethostname (buf
, sizeof (buf
));
53 printf ("gethostname failed, rc %d errno %d\n", rc
, errno
);
57 if (strcmp (buf
, NOHOSTNAME
) == 0)
59 printf ("gethostname left buffer untouched.\n");
64 printf ("hostname: %s\n", buf
);