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48 lines
1.5 KiB
C
48 lines
1.5 KiB
C
/* gethostn - a small diagnostic utility to show what the
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* gethostname() API returns. Of course, this tool duplicates
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* functionality already found in other tools. But the point is
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* that the API shall be called by a program that is compiled like
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* rsyslogd and does exactly what rsyslog does.
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*
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* Copyright 2008 Rainer Gerhards and Adiscon GmbH.
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*
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* This file is part of rsyslog.
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*
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* Rsyslog 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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* Rsyslog 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 Rsyslog. If not, see <http://www.gnu.org/licenses/>.
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*
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* A copy of the GPL can be found in the file "COPYING" in this distribution.
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*/
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#include "config.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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int main(int __attribute__((unused)) argc, char __attribute__((unused)) *argv[])
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{
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char hostname[4096]; /* this should always be sufficient ;) */
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int err;
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err = gethostname(hostname, sizeof(hostname));
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if(err) {
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perror("gethostname failed");
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exit(1);
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}
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printf("hostname of this system is '%s'.\n", hostname);
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return 0;
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}
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