REMOTE PROCEDURE CALL (RPC) USING SOCKETS
By karthick
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IMPLEMENTATION OF REMOTE PROCEDURE CALL (RPC) USING SOCKETS
,
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Server program
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<unistd.h>
#include<netinet/in.h>
#include<arpa/inet.h>
#include<sys/types.h>
#include<sys/socket.h>
#include<errno.h>
int
i,f;
int
main()
{
int
sd,acpt,port,len,n,result;
char
choice[50];
struct
sockaddr_in serv,cli;
if((sd=socket(AF_INET,SOCK_STREAM,0))<0)
{
printf("Error
in socket\n");
exit(0);
}
bzero(&serv,sizeof(serv));
printf("Enter
the port number : ");
scanf("%d",&port);
serv.sin_family=AF_INET;
serv.sin_port=htons(port);
serv.sin_addr.s_addr=htonl(INADDR_ANY);
if(bind(sd,(struct
sockaddr *)&serv,sizeof(serv))<0)
{
printf("Error
in bind\n");
exit(0);
}
if(listen(sd,3)<0)
{
printf("Error
in listen\n");
exit(0);
}
len=sizeof(cli);
if((acpt=accept(sd,(struct
sockaddr*)&cli,&len))<0)
{
printf("Error
in accept");
exit(0);
}
while(1)
{
recv(acpt,&n,sizeof(n),0);
printf("\nThe
number is received : %d",n);
result=fact(n);
printf("\n
the factorial value is : %d\n",result);
send(acpt,&result,sizeof(result),0);
result=0;
recv(acpt,&choice,sizeof(choice),0);
if(strcmp(choice,"n")==0)
{
printf("\n***
Server exit ***\n");
break;
}
}
close(acpt);
close(sd);
return
0;
}
Client program
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<unistd.h>
#include<netinet/in.h>
#include<arpa/inet.h>
#include<sys/types.h>
#include<sys/socket.h>
#include<errno.h>
int
main()
{
int
sd,acpt,con,port,n,result;
char
choice[50];
struct
sockaddr_in serv,cli;
if((sd=socket(AF_INET,SOCK_STREAM,0))<0)
{
printf("Error
in socket\n");
exit(0);
}
bzero(&serv,sizeof(serv));
printf("Enter
the port number : ");
scanf("%d",&port);
serv.sin_family=AF_INET;
serv.sin_port=htons(port);
serv.sin_addr.s_addr=htonl(INADDR_ANY);
if(con=connect(sd,(struct
sockaddr *)&serv,sizeof(serv))<0)
{
printf("Error
in connection\n");
exit(0);
}
while(1)
{
printf("\nEnter
the first data :");
scanf("%d",&n);
send(sd,&n,sizeof(n),0);
recv(sd,&result,sizeof(result),0);
printf("\nThe
factorial value is :%d",result);
printf("\nDo
you want continue : ");
scanf("%s",&choice);
send(sd,&choice,sizeof(choice),0);
if(strcmp(choice,"n")==0)
{
printf("\n***
Client exit ***\n");
break;
}
}
close(sd);
}
OUTPUT
SERVER
[11ca013@mcalinux
network]$ cc 9rcpfactser.c
[11ca013@mcalinux
network]$ ./a.out
Enter
the port number : 1806
The
number is received : 2
the factorial value is : 2
The
number is received : 3
the factorial value is : 6
The
number is received : 4
the factorial value is : 24
The
number is received : 5
the factorial value is : 120
The
number is received : 5
the factorial value is : 120
The
number is received : 5
the factorial value is : 120
CLIENT
[11ca013@mcalinux
network]$ cc 9rcpfactcli.c
[11ca013@mcalinux
network]$ ./a.out
Enter
the port number : 1806
Enter
the first data :2
The
factorial value is :2
Do
you want continue : 1
Enter
the first data :3
The
factorial value is :6
Do
you want continue : 1
Enter
the first data :4
The
factorial value is :24
Do
you want continue : 1
Enter
the first data :5
The
factorial value is :120
Do
you want continue : 0
