getpeername

getpeername - get name of connected peer socket

 

　　Synopsis

 

　　#include <sys/socket.h>

 

　　int getpeername(int s, struct sockaddr *name, socklen_t *namelen);

 

　　Description

 

　　getpeername() returns the name of the peer connected to socket s. The namelen parameter should be initialized to indicate the amount of space pointed to by name. On return it contains the actual size of the name returned (in bytes). The name is truncated if the buffer provided is too small.

 

　　Return Value

 

　　On success, zero is returned. On error, -1 is returned, and errno is set appropriately.

转载于:https://www.cnblogs.com/greencolor/archive/2012/10/18/2729796.html