Socket Programming Question:
Download Job Interview Questions and Answers PDF
How to make a Socket a Listen-only Connection Endpoint - listen()?
Answer:
/*
Code Sample: Make a Socket a Listen-only
Connection Endpoint - listen()
by GlobalGuideline.com
*/
#include <sys/types.h>
#include <sys/socket.h>
int listen(int s, int backlog)
/*
listen establishes the socket as a passive
endpoint of a connection. It does not
suspend process execution.
*/
/*
No messages can be sent through this socket.
Incoming messages can be received.
*/
/*
s is the file descriptor associated with
the socket created using the socket() system
call. backlog is the size of the queue
of waiting requests while the server is busy
with a service request. The current
system-imposed maximum value is 5.
*/
/*
0 is returned on success, -1 on error
with errno indicating the problem.
*/
Example:
#include <sys/types.h>
#include <sys/socket.h>
int sockfd; /* socket file descriptor */
if(listen(sockfd, 5) < 0)
printf ("listen error %dn", errno);
Code Sample: Make a Socket a Listen-only
Connection Endpoint - listen()
by GlobalGuideline.com
*/
#include <sys/types.h>
#include <sys/socket.h>
int listen(int s, int backlog)
/*
listen establishes the socket as a passive
endpoint of a connection. It does not
suspend process execution.
*/
/*
No messages can be sent through this socket.
Incoming messages can be received.
*/
/*
s is the file descriptor associated with
the socket created using the socket() system
call. backlog is the size of the queue
of waiting requests while the server is busy
with a service request. The current
system-imposed maximum value is 5.
*/
/*
0 is returned on success, -1 on error
with errno indicating the problem.
*/
Example:
#include <sys/types.h>
#include <sys/socket.h>
int sockfd; /* socket file descriptor */
if(listen(sockfd, 5) < 0)
printf ("listen error %dn", errno);
Download Socket Programming Interview Questions And Answers
PDF
Previous Question | Next Question |
How Sockets can be used to write client-server applications using a connection-oriented client-server technique? | Explain Connection Establishment by Server - accept()? |