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/*#define TEST_PARAMETERS*/
#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <signal.h>
#include <errno.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
/* For bcopy */
#include <string.h>
/* For config file operations */
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include "common.h"
#include "cfg.h"
#include "sysinfo.h"
#include "zabbix_agent.h"
static char *CONFIG_HOSTS_ALLOWED = NULL;
static int CONFIG_TIMEOUT = AGENT_TIMEOUT;
void signal_handler( int sig )
{
if( SIGALRM == sig )
{
signal( SIGALRM, signal_handler );
}
if( SIGQUIT == sig || SIGINT == sig || SIGTERM == sig )
{
}
exit( FAIL );
}
int add_parameter(char *value)
{
char *value2;
value2=strstr(value,",");
if(NULL == value2)
{
return FAIL;
}
value2[0]=0;
value2++;
add_user_parameter(value, value2);
return SUCCEED;
}
void init_config(void)
{
struct cfg_line cfg[]=
{
/* PARAMETER ,VAR ,FUNC, TYPE(0i,1s),MANDATORY,MIN,MAX
*/
{"Server",&CONFIG_HOSTS_ALLOWED,0,TYPE_STRING,PARM_MAND,0,0},
{"Timeout",&CONFIG_TIMEOUT,0,TYPE_INT,PARM_OPT,1,30},
{"UserParameter",0,&add_parameter,0,0,0,0},
{0}
};
parse_cfg_file("/etc/zabbix/zabbix_agent.conf",cfg);
}
int check_security(void)
{
char *sname;
struct sockaddr_in name;
int i;
char *s;
char *tmp;
i=sizeof(name);
if(getpeername(0, (struct sockaddr *)&name, (size_t *)&i) == 0)
{
i=sizeof(struct sockaddr_in);
sname=inet_ntoa(name.sin_addr);
tmp=strdup(CONFIG_HOSTS_ALLOWED);
s=(char *)strtok(tmp,",");
while(s!=NULL)
{
if(strcmp(sname, s)==0)
{
return SUCCEED;
}
s=(char *)strtok(NULL,",");
}
}
else
{
/* syslog( LOG_WARNING, "Error getpeername [%m]");*/
/* syslog( LOG_WARNING, "Connection rejected");*/
return FAIL;
}
return FAIL;
}
int main()
{
char s[MAX_STRING_LEN+1];
char value[MAX_STRING_LEN+1];
#ifdef TEST_PARAMETERS
init_config();
test_parameters();
return SUCCEED;
#endif
signal( SIGINT, signal_handler );
signal( SIGQUIT, signal_handler );
signal( SIGTERM, signal_handler );
signal( SIGALRM, signal_handler );
init_config();
alarm(CONFIG_TIMEOUT);
if(check_security() == FAIL)
{
exit(FAIL);
}
fgets(s,MAX_STRING_LEN,stdin);
process(s,value);
printf("%s\n",value);
fflush(stdout);
alarm(0);
return SUCCEED;
}
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