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47 lines
1.4 KiB
C
47 lines
1.4 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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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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* -or-
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* see COPYING.ASL20 in the source distribution
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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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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