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tools/gethostn.c
45 строк
1 KB
Rainer Gerhards
style: normalize C source formatting via clang-format (PoC)
16 июл 2025, 14:56
16 июл 2025, 14:56
b326c76
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/* gethostn - a small diagnostic utility to show what the * gethostname() API returns. Of course, this tool duplicates * functionality already found in other tools. But the point is * that the API shall be called by a program that is compiled like * rsyslogd and does exactly what rsyslog does. * * Copyright 2008 Rainer Gerhards and Adiscon GmbH. * * This file is part of rsyslog. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * -or- * see COPYING.ASL20 in the source distribution * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include "config.h" #include <stdio.h> #include <stdlib.h> #include <unistd.h> int main(int __attribute__((unused)) argc, char __attribute__((unused)) * argv[]) { char hostname[4096]; /* this should always be sufficient ;) */ int err; err = gethostname(hostname, sizeof(hostname)); if (err) { perror("gethostname failed"); exit(1); } printf("hostname of this system is '%s'.\n", hostname); return 0; }