Is there a way of making the same machine be the server and client in socket programming?
I need to send a message from one machine the other but on the same machine?
Is there a way of making the same machine be the server and client in socket programming?
I need to send a message from one machine the other but on the same machine?
yes there is.
assume the server listens on port 9999 on your local ip. (192.168.0.1 for instance)
the client now needs your ip and the port the server listens on.
nothing more.
That's true but it's better to use the loopback (127.0.0.1) rather than an IP address if you're doing it all on the localhost. If the IP changes then your program is borked....the loopback will never change.Originally posted by threahdead
yes there is.
assume the server listens on port 9999 on your local ip. (192.168.0.1 for instance)
the client now needs your ip and the port the server listens on.
nothing more.
Apart from the loop back address is there another way of making the server part run on the background while I run the client(in Linux/Unix)?
I would like to modify the server part so that it can send a file of a particular format.Need help...
#include <sys/types.h>
#include <sys/socket.h>
blah...
blah...
/*Socket creation and binding part omitted*/
/*This part is to send or receive a message to/from a client*/
printf("%s: waiting for data on port UDP %u\n",
argv[0],LOCAL_SERVER_PORT)
while(1) {
memset(msg,0x0,MAX_MSG);
cliLen = sizeof(cliAddr)
n = recvfrom(sd, msg, MAX_MSG, 0,
(struct sockaddr *) &cliAddr, &cliLen);
printf("%s: cannot receive data \n",argv[0]);
continue;
}
/* print received message */
printf("%s: from %s:UDP%u : %s \n",
argv[0],inet_ntoa(cliAddr.sin_addr),
ntohs(cliAddr.sin_port),msg);
}
return 0;
}
Salem:Smart link!Helps a lot, thank you!
You can type ./server_program & to start the server program and return you to a prompt so you can run the client program.
