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/*
* Copyright (C) 2002-2016 Renzo Davoli, University of Bologna
* Modified by Ludovico Gardenghi 2005
*
* log: vde_plug logging facilities
*
* VDE 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
* of the License, 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, see <http://www.gnu.org/licenses/>.
*
*/
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <sys/types.h>
#include <pwd.h>
#include <syslog.h>
#include <ctype.h>
#include <vde_plug_log.h>
char sshremotehost[256];
char *username;
static void vdeplug_getdata(void)
{
char *ssh_client;
size_t ip_length;
//get the login name
struct passwd *callerpwd = getpwuid(getuid());
username = callerpwd->pw_name;
openlog("vde_plug", 0, LOG_USER);
//get the caller IP address
//TNX Giordani-Macchia code from vish.c
if ((ssh_client = getenv("SSH_CLIENT"))!=NULL)
{
for (ip_length = 0;
ip_length<sizeof(sshremotehost) && ssh_client[ip_length] != 0&& !isspace(ssh_client[ip_length]);
ip_length++)
;
if (ip_length>=sizeof(sshremotehost))
ip_length = sizeof(sshremotehost)-1;
memcpy(sshremotehost,ssh_client,ip_length);
sshremotehost[ip_length] = 0;
}
else
strcpy(sshremotehost,"UNKNOWN_IP_ADDRESS");
}
void vdeplug_openlog(char *message) {
openlog("vde_plug", 0, LOG_USER);
vdeplug_getdata();
syslog(LOG_INFO,"%s: user %s IP %s",message ?message : "START",username,sshremotehost);
if (message)
closelog();
}
void vdeplug_closelog(void) {
syslog(LOG_INFO,"%s: user %s IP %s","STOP",username,sshremotehost);
closelog();
}
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