69 lines
1.7 KiB
C
69 lines
1.7 KiB
C
/*
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* Copyright (C) 2008-2025 Free Software Foundation, Inc.
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* Written by Simon Josefsson.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>. */
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#include <config.h>
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/* Get gethostname() declaration. */
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#include <unistd.h>
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#include "signature.h"
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#if !defined __sun
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SIGNATURE_CHECK (gethostname, int, (char *, size_t));
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#endif
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/* Get HOST_NAME_MAX definition. */
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#include <limits.h>
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#define NOHOSTNAME "magic-gnulib-test-string"
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int
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main (int argc, _GL_UNUSED char *argv[])
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{
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char buf[HOST_NAME_MAX];
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int rc;
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if (strlen (NOHOSTNAME) >= HOST_NAME_MAX)
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{
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printf ("HOST_NAME_MAX impossibly small?! %d\n", HOST_NAME_MAX);
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return 2;
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}
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strcpy (buf, NOHOSTNAME);
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rc = gethostname (buf, sizeof (buf));
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if (rc != 0)
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{
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printf ("gethostname failed, rc %d errno %d\n", rc, errno);
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return 1;
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}
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if (strcmp (buf, NOHOSTNAME) == 0)
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{
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printf ("gethostname left buffer untouched.\n");
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return 1;
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}
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if (argc > 1)
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printf ("hostname: %s\n", buf);
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return 0;
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}
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