Notes

#include<sys/types.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <netdb.h>
#include <sys/socket.h>
#include <time.h>
//#include<string>
//#include "port.h"

#define SERVICE_PORT 21234
#define BUFLEN 512
#define MSGS 5 /* number of messages to send */
#define SERVICE_PORT 21234



//time_t start = time(NULL);


//Do your work


//time_t end = time(NULL);
//std::cout<<"Execution Time: "<< (double)(end-start)<<" Seconds"<<std::endl;

int main(void)
{ int seqno = 0;
struct sockaddr_in myaddr, remaddr;
socklen_t addrlen = sizeof(remaddr);
int fd, i, slen=sizeof(remaddr);
char buffer[BUFLEN]; //Packet Buffer //
char buf[BUFLEN]; /* message buffer */
int recvlen;
int count =0;
int number = 32; /* # bytes in acknowledgement message */
char *server = "10.0.2.15"; /* change this to use a different server */

/* create a socket */

if ((fd=socket(AF_INET, SOCK_DGRAM, 0))==-1)
printf("socket createdn");

/* bind it to all local addresses and pick any port number */

memset((char *)&myaddr, 0, sizeof(myaddr));
myaddr.sin_family = AF_INET;
myaddr.sin_addr.s_addr = htonl(INADDR_ANY);
myaddr.sin_port = htons(0);

if (bind(fd, (struct sockaddr *)&myaddr, sizeof(myaddr)) < 0) {
perror("bind failed");
return 0;
}

/* now define remaddr, the address to whom we want to send messages */
/* For convenience, the host address is expressed as a numeric IP address */
/* that we will convert to a binary format via inet_aton */

memset((char *) &remaddr, 0, sizeof(remaddr));
remaddr.sin_family = AF_INET;
remaddr.sin_port = htons(SERVICE_PORT);
if (inet_aton(server, &remaddr.sin_addr)==0) {
fprintf(stderr, "inet_aton() failedn");
exit(1);
}


FILE *file;
file = fopen("first.doc","rb");
while(!feof(file)){
//time_t start = time(NULL);
recvlen = fread(&buffer,sizeof(buffer),1,file);
//printf("%dn",recvlen);
printf("%sn",buffer);
char *intStr;
sprintf(intStr, "%d", recvlen);
//printf("%dn",sizeof(buffer));
count = count + sizeof(buffer);
sendto(fd, buffer, sizeof(buffer), 0, (struct sockaddr *)&remaddr, slen);
//send(new_socket,buffer,sizeof(buffer),0);
if(recvfrom(fd, buf, sizeof(buf), 0, (struct sockaddr *)&remaddr, &addrlen)>0){

printf("%s n",buf);
seqno =seqno+1;
}
//time_t end = time(NULL);
//printf("%f",(double)end-start);
sendto(fd, intStr, sizeof(intStr), 0, (struct sockaddr *)&remaddr, slen);
}
printf("Outside of loppn");

sendto(fd, "0", sizeof(recvlen), 0, (struct sockaddr *)&remaddr, slen);
printf("Total File Length : %dn",count);

//printf("%s",buffer);
fclose(file);
printf("File Closed");
//send(new_socket , hello , strlen(hello) , 0 );


close(fd);
return 0;
}