Ftps

#include<stdio.h>

#include<sys/types.h>

#include<netinet/in.h>

#include<string.h>

#include<stdlib.h>

#include<unistd.h>

int main()

{

FILE *fp;

int sd,newsd,ser,n,a,cli,pid,bd,port,clilen;

char name[100],fileread[100],fname[100],ch,file[100],rcv[100];

struct sockaddr_in servaddr,cliaddr;

printf("Enter the port address\n");

scanf("%d",&port);

sd=socket(AF_INET,SOCK_STREAM,0);

if(sd<0)

printf("Cant create\n");

else

printf("Socket is created\n");

servaddr.sin_family=AF_INET;

servaddr.sin_addr.s_addr=htonl(INADDR_ANY);

servaddr.sin_port=htons(port);

a=sizeof(servaddr);

bd=bind(sd,(struct sockaddr *)&servaddr,a);

if(bd<0)

printf("Cant bind\n");

else

printf("Binded\n");

listen(sd,5);

clilen=sizeof(cliaddr);

newsd=accept(sd,(struct sockaddr *)&cliaddr,&clilen);

if(newsd<0)

{

printf("Cant accept\n");

}

else

printf("Accepted\n");

n=recv(newsd,rcv,100,0);

rcv[n]='\0';

fp=fopen(rcv,"r");

if(fp==NULL)

{

send(newsd,"error",5,0);

close(newsd);

}

else

{

while(fgets(fileread,sizeof(fileread),fp))

{

if(send(newsd,fileread,sizeof(fileread),0)<0)

{

printf("Can’t send file contents\n");

}

sleep(1);

}

if(!fgets(fileread,sizeof(fileread),fp))

{

//when file pointer reaches end of file, file transfer “completed” message is send to accepted client connection using newsd, socket file descriptor.

send(newsd,"completed",999999999,0);

}

return(0);

}

}