nagios插件之监控单个tomcat线程数

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define OK       0
#define WARNING  1
#define CRITICAL 2
#define UNKNOWN  3

#define LEN 1023

#define CMD "ps -efL | grep tomcat  | wc -l"

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

char status_information[LEN];
char performance_data[LEN];

int parse_cmd() {
int ret;
FILE *fp;
char readbuf[1024];

int i;
char *p,*str;

fp=popen(CMD,"r");
if(fp==NULL) {
fprintf(stderr,"popen() error.\n");
return -1;
}

// while(fgets(readbuf,1024,fp)!=NULL) {
/*
for(p=strtok(readbuf," ");p;p=strtok(NULL," ")) {
//      str=p;

sprintf(status_information,"active call=%s",p);

sprintf(performance_data,"call=%s;;;;",p);

break;
}

break;
*/

//	readbuf[strlen(readbuf)-1]=0;
ret=fscanf(fp,"%s",readbuf);
if(ret!=1) {
fprintf(stderr,"fscanf() error.\n");
}

if(atoi(readbuf)<300) {
exitstatus=OK;
}
else if(atoi(readbuf)>=300 && atoi(readbuf)<=400) {
exitstatus=WARNING;
}
else if(atoi(readbuf)>=400) {
exitstatus=CRITICAL;
}

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

sprintf(performance_data,"tomcat_threads=%s;;;;",readbuf);
// }

ret=pclose(fp);
if(fp==NULL) {
fprintf(stderr,"pclose() error.\n");
return -1;
}
}

int main() {
int ret;

ret=parse_cmd();
if(ret!=0) {
fprintf(stderr,"parse_cmd() error.\n");
// exitstatus=CRITICAL;
// printf("%s: - %s | %s\n",exit_status[exitstatus],status_information,performance_data);
exit(-1);
}

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

return exitstatus;
}