memoryBlow.c

#include <stdio.h>
//#include <alloc.h>
int main(void){
printf("Check the ram usage and press any to start the process");
getchar();
int c=0;
void *v=NULL;
v=malloc(1);
void (* va[33000]);
printf("Reached till array with size %d\n",sizeof(va));
while(v){
v=malloc(100000);
if(v)memset(v,1,100000);
va[c]=v;
c++;
}
printf("completed with %d cycles",c);
getchar();
return 0;
}

socketClient.c

#include <sys/socket.h>

#include <sys/types.h>

#include <netinet/in.h>

#include <netdb.h>

#include <stdio.h>

#include <string.h>

#include <stdlib.h>

#include <unistd.h>

#include <errno.h>

#include <arpa/inet.h>

 

int main(void)

{

  int sockfd = 0,n = 0;

  char recvBuff[1024];

  struct sockaddr_in serv_addr;

 

  memset(recvBuff, '0' ,sizeof(recvBuff));

  if((sockfd = socket(AF_INET, SOCK_STREAM, 0))< 0)

    {

      printf("\n Error : Could not create socket \n");

      return 1;

    }

 

  serv_addr.sin_family = AF_INET;

  serv_addr.sin_port = htons(5000);

  serv_addr.sin_addr.s_addr = inet_addr("127.0.0.1");
 

  if(connect(sockfd, (struct sockaddr *)&serv_addr, sizeof(serv_addr))<0)

    {

      printf("\n Error : Connect Failed \n");

      return 1;

    }

 

  while((n = read(sockfd, recvBuff, sizeof(recvBuff)-1)) > 0)

    {

      recvBuff[n] = 0;

      if(fputs(recvBuff, stdout) == EOF)

    {

      printf("\n Error : Fputs error");

    }

      printf("\n");

    }

 

  if( n < 0)

    {

      printf("\n Read Error \n");

    }

 

 

  return 0;

}

socketServer.c

#include <sys/socket.h>

#include <netinet/in.h>

#include <arpa/inet.h>

#include <stdio.h>

#include <stdlib.h>

#include <unistd.h>

#include <errno.h>

#include <string.h>

#include <sys/types.h>

 

int main(void)

{

  int listenfd = 0,connfd = 0;

  

  struct sockaddr_in serv_addr;

 

  char sendBuff[1025];  

  int numrv;  

 

  listenfd = socket(AF_INET, SOCK_STREAM, 0);

  printf("socket retrieve success\n");

  

  memset(&serv_addr, '0', sizeof(serv_addr));

  memset(sendBuff, '0', sizeof(sendBuff));

      

  serv_addr.sin_family = AF_INET;    

  serv_addr.sin_addr.s_addr = htonl(INADDR_ANY); 

  serv_addr.sin_port = htons(5000);    

 

  bind(listenfd, (struct sockaddr*)&serv_addr,sizeof(serv_addr));

  

  if(listen(listenfd, 10) == -1){

      printf("Failed to listen\n");

      return -1;

  }

     

  

  while(1)

    {

      

      connfd = accept(listenfd, (struct sockaddr*)NULL ,NULL); // accept awaiting request


printf("Got client Request: connection Id %d\n",connfd);
  

      strcpy(sendBuff,"C Server running at localhost ... "); 

      write(connfd, sendBuff, strlen(sendBuff));

 

      close(connfd);    

      sleep(1);

    }

 

 

  return 0;

}