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/*
** Zabbix
** Copyright (C) 2000,2001,2002,2003,2004 Alexei Vladishev
**
** 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 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, write to the Free Software
** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
**/
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <string.h>
#include <errno.h>
/* config.h is required for socklen_t (undefined under Solaris) */
#include "config.h"
#include "common.h"
#include "log.h"
int check_security(int sockfd, char *ip_list, int allow_if_empty)
{
char *sname;
struct sockaddr_in name;
int i;
char *s;
char tmp[MAX_STRING_LEN];
zabbix_log( LOG_LEVEL_DEBUG, "In check_security()");
if( (1 == allow_if_empty) && (strlen(ip_list)==0) )
{
return SUCCEED;
}
i=sizeof(name);
/* if(getpeername(sockfd, (struct sockaddr *)&name, (size_t *)&i) == 0)*/
if(getpeername(sockfd, (struct sockaddr *)&name, (socklen_t *)&i) == 0)
{
i=sizeof(struct sockaddr_in);
sname=inet_ntoa(name.sin_addr);
zabbix_log( LOG_LEVEL_DEBUG, "Connection from [%s]. Allowed servers [%s] ",sname, ip_list);
strscpy(tmp,ip_list);
s=(char *)strtok(tmp,",");
while(s!=NULL)
{
if(strcmp(sname, s)==0)
{
return SUCCEED;
}
s=(char *)strtok(NULL,",");
}
}
else
{
zabbix_log( LOG_LEVEL_WARNING, "Error getpeername [%s]",strerror(errno));
zabbix_log( LOG_LEVEL_WARNING, "Connection rejected");
return FAIL;
}
zabbix_log( LOG_LEVEL_WARNING, "Connection from [%s] rejected. Allowed server is [%s] ",sname, ip_list);
return FAIL;
}
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