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/*
* SNOOPY COMMAND LOGGER
*
* File: snoopy/datasource/hostname.c
*
* Copyright (c) 2015 Bostjan Skufca <bostjan@a2o.si>
*
* 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 2, 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, write to the Free Software Foundation,
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/*
* Includes order: from local to global
*/
#include "hostname.h"
#include "snoopy.h"
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
/*
* SNOOPY DATA SOURCE: hostname
*
* Description:
* Returns hostname of this system.
*
* Params:
* result: pointer to string, to write result into
* arg: (ignored)
*
* Return:
* number of characters in the returned string, or SNOOPY_DATASOURCE_FAILURE
*/
int snoopy_datasource_hostname (char * const resultBuf, size_t resultBufSize, __attribute__((unused)) char const * const arg)
{
int charCount;
int retVal;
retVal = gethostname(resultBuf, resultBufSize);
if (0 != retVal) {
return snprintf(resultBuf, resultBufSize, "(error @ gethostname(): %d)", errno);
}
// If hostname was something alien (longer than 1024 characters),
// set last char to null just in case
resultBuf[resultBufSize-1] = '\0';
charCount = (int) strlen(resultBuf);
return charCount;
}
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