使用方法：check_udp_port udp port

vi check_udp_port.c

#include

#include

#include

#define OK 0

#define WARNING 1

#define CRITICAL 2

#define UNKNOWN 3

#define LEN 1000

//#define TCL_CMD "/home/weihu/tcl/"

#define TCL_CMD "/usr/local/nagios/libexec/"

int exitstatus=OK;

char *exit_status[4]={"OK","WARNING","CRITICAL","UNKNOWN"};

char status_information[LEN];

char performance_data[LEN];

//

char loss_packet[32];

char ping_min[32];

char ping_avg[32];

char ping_max[32];

char ping_unit[32];

int mark=0;

char readbuf[LEN];

//int parse_status(char *sh_cmd,char *active_status,char *active_ip_addr) {

int parse_status(char *sh_cmd,char *argv1_str,char *argv2_str) {

int ret;

FILE *fp;

char *p,*str;

int line=0;

int mark1=0;

int mark2=0;

int i;

//fp=popen("/home/neo/check_log/tcl/auto_ssh.sh","r");

fp=popen(sh_cmd,"r");

if(fp==NULL) {

fprintf(stderr,"popen() error. ");

exitstatus=CRITICAL;

printf("%s: - %s | %s\n",exit_status[exitstatus],status_information,performance_data);

exit(exitstatus);

}

while(fgets(readbuf,LEN,fp)!=NULL) {

line++;

//printf("line=%d,readbuf=%s",line,readbuf);

if(strstr(readbuf,argv1_str) && strstr(readbuf,argv2_str)) {

mark=1;

//printf("---------------------------------------------------------------------\n");

//delete "\n"

i=strlen(readbuf);

if(readbuf[i-1]=='\n') {

readbuf[i-1]='\0';

}

}

}

ret=fclose(fp);

if(fp==NULL) {

fprintf(stderr,"popen() error.\n");

return -1;

}

return 0;

}

int main(int argc, char *argv[]) {

int ret;

char sh_cmd[LEN];

char active_status[LEN];

char active_ip_addr[LEN];

char argv1_str[LEN];

char argv2_str[LEN];

if(argc<3) {

printf("%s %s\n",argv[0],"udp port");

exit(-1);

}

strcpy(argv1_str,argv[1]);

strcpy(argv2_str,argv[2]);

//printf("argv1_str=%s,argv2_str=%s\n",argv1_str,argv2_str);

//sprintf(sh_cmd,"%s%s",TCL_CMD,argv[1]);

//sprintf(sh_cmd,"%s%s%s","netstat -utupl | grep ",argv[1],argv[2]);

//sprintf(sh_cmd,"%s%s","netstat -ntul | grep -w ",argv[1]);

sprintf(sh_cmd,"%s%s","netstat -nul | grep -w ",argv[1]);

//sprintf(sh_cmd,"%s%s","| grep",argv[2]);

strcat(sh_cmd,"| grep -w ");

strcat(sh_cmd,"\"");

strcat(sh_cmd,argv[2]);

strcat(sh_cmd,"\"");

//printf("sh_cmd=%s\n",sh_cmd);

//ret=parse_status(sh_cmd,active_status,active_ip_addr);

ret=parse_status(sh_cmd,argv1_str,argv1_str);

if(ret!=0) {

fprintf(stderr,"parse_status() error.\n");

exit(-1);

}

//printf("active_status=%s\n",active_status);

//printf("active_ip_addr=%s\n",active_ip_addr);

memset(status_information,0,LEN);

memset(performance_data,0,LEN);

if(mark==1) {

exitstatus=OK;

sprintf(status_information,"%s",readbuf);

}

else if(mark==0) {

exitstatus=CRITICAL;

sprintf(status_information,"%s%s",argv[2]," is not exist.");

}

else{

exitstatus=UNKNOWN;

sprintf(status_information,"%s%s",argv[2]," is unknow.");

}

//sprintf(performance_data,"rta=%s%s;200.000;500.000;0; pl=%s;40;80;; rtmax=%s%s;;;; rtmin=%s%s;;;;",ping_avg,ping_unit,loss_packet,ping_max,ping_unit,ping_min,ping_unit);

//|rta=0.056ms;200.000;500.000;0; pl=0%;40;80;; rtmax=0.084ms;;;; rtmin=0.029ms;;;;

/*

if(strstr(argv[1],"80_49")) {

printf("%s - 10.7.0.186: %s | %s\n",exit_status[exitstatus],status_information,performance_data);

}

if(strstr(argv[1],"80_50")) {

printf("%s - 10.7.0.195: %s | %s\n",exit_status[exitstatus],status_information,performance_data);

}

*/

printf("%s - : %s | %s\n",exit_status[exitstatus],status_information,performance_data);

return exitstatus;

}