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/*
* Copyright (C) 2008-2018 Free Software Foundation, Inc.
* Written by Simon Josefsson.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>. */
#include <config.h>
/* Get gethostname() declaration. */
#include <unistd.h>
#include "signature.h"
SIGNATURE_CHECK (gethostname, int, (char *, size_t));
/* Get HOST_NAME_MAX definition. */
#include <limits.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#define NOHOSTNAME "magic-gnulib-test-string"
int
main (int argc, char *argv[] _GL_UNUSED)
{
char buf[HOST_NAME_MAX];
int rc;
if (strlen (NOHOSTNAME) >= HOST_NAME_MAX)
{
printf ("HOST_NAME_MAX impossibly small?! %d\n", HOST_NAME_MAX);
return 2;
}
strcpy (buf, NOHOSTNAME);
rc = gethostname (buf, sizeof (buf));
if (rc != 0)
{
printf ("gethostname failed, rc %d errno %d\n", rc, errno);
return 1;
}
if (strcmp (buf, NOHOSTNAME) == 0)
{
printf ("gethostname left buffer untouched.\n");
return 1;
}
if (argc > 1)
printf ("hostname: %s\n", buf);
return 0;
}
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