delpid.c

linux下c 编写的 某项目代理服务端部分的代码。其中包括网络通信

/***************************
        kill shm, msg, sema 
**************************** */

#include "shmmsg.h"

/*int
DelSem(key_t semkey)
{      int semid;
       
 
       if((semid=semget(semkey,1,0))<0)  {
     		syslog("semaphoreid get error!",__FILE__,__LINE__);
       		return -1;
       }

       if((semctl(semid,0,IPC_RMID,0))<0) {
       		syslog("delete semaphore error!",__FILE__,__LINE__);
       		return -1;
       }
      
       return 0;
}
*/

int
delsem(key_t semkey)
{      int semid;


       if((semid=semget(semkey,2,0))<0)  {
                syslog("semaphoreid get error!",__FILE__,__LINE__);
                return -1;
       }

       if((semctl(semid,0,IPC_RMID,0))<0) {
                syslog("delete semaphore error!",__FILE__,__LINE__);
                return -1;
       }

       return 0;
}


int
DelShm()
{
	int shmid;
	key_t shmkey;

	shmkey = ftok(getetcf(SHMDIR1),SHMKEY1);
	if ( shmkey  < 0) {
		syslog(" get share memory key err!",__FILE__,__LINE__);
		return -1;
	}
	
	if ((shmid= shmget(shmkey,sizeof(struct comshm),0660|IPC_CREAT))< 0 ) {
		syslog(" get share memory id err!",__FILE__,__LINE__);
		return -1;
	}

	if (( shmctl (shmid, IPC_RMID, 0)) < 0) {
		syslog(" delete share memory  err!",__FILE__,__LINE__);
		return -1;
	}

	return 0;
}

/*int
delshm1()
{
        int shmid;
        key_t shmkey,GetShmKey1();

	if (( shmkey = ftok(getetcf(SHMDIR1),SHMKEY1)) < 0) {
                syslog(" get share memory key err!",__FILE__,__LINE__);
                return NULL;
        }

 	if ((shmid= shmget(shmkey,sizeof(struct node)*MAXBUF,0660|IPC_CREAT))< 0 ) {
                syslog(" get share memory id err!",__FILE__,__LINE__);
                return NULL;
        }


        if (( shmctl (shmid, IPC_RMID, 0)) < 0) {
                syslog(" delete share memory  err!",__FILE__,__LINE__);
                return -1;
        }

        return 0;
}

*/
main()
{
    FILE *fp;
    char buffer1[30], buffer2[30], buffer3[30], buffer4[51];

    	if((delsem(SEMKEY1))<0)
                syslog("del Semaphore error!",__FILE__,__LINE__);
 
   	/*if((DelSem(SEMKEY3))<0)
                syslog("del Semaphore error!",__FILE__,__LINE__);

    	if((DelSem(SEMKEY2))<0)
                syslog("del Semaphore error!",__FILE__,__LINE__);*/
        
	if((DelShm())<0)
                syslog("del share memory error!",__FILE__,__LINE__);

 /*       if((delshm1())<0)
                syslog("del share memory1 error!",__FILE__,__LINE__);*/
        
                                                                            
        if ((fp = popen("ps -e", "r")) == NULL) {
		syslog("open 'ps -e' file error!",__FILE__,__LINE__);
		exit(-1);
    	}
    	
	while(!feof(fp)) {
        	memset(buffer1, '\0', sizeof(buffer1));
        	memset(buffer2, '\0', sizeof(buffer2));
       		memset(buffer3, '\0', sizeof(buffer3));
        	memset(buffer4, '\0', sizeof(buffer4));
        	fscanf(fp, "%s %s %s %s", buffer1, buffer2, buffer3, buffer4);
        
		if (strcmp(buffer4, "GenDaemon") == 0)
        	{
            		sprintf(buffer4, "kill %s", buffer1);
	    		system(buffer4);
		}
		

    	}
    	pclose(fp);
}