nagios插件之监控tcp的established数量

来源：互联网发布：站内优化编辑：程序博客网时间：2024/06/08 11:47
vi check_tcp_established_status.c
#include <stdio.h>#include <stdlib.h>#include <string.h>#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 established_count=0;//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) && strstr(readbuf,"ESTABLISHED")) {                        mark=1;                //      printf("---------------------------------------------------------------------\n");                        //delete "\n"                        i=strlen(readbuf);                        if(readbuf[i-1]=='\n') {                                readbuf[i-1]='\0';                        }                }        }//      printf("line=%d\n",line);        established_count=line;        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],"localip remoteip");                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","netstat -ant | grep ",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);                sprintf(status_information,"%s, count=%d",readbuf,established_count);        }        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;}
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