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Get name of connected peer.

#include <sys/types.h>
#include <sys/socket.h>

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


The getpeername() system call returns the name of the peer connected to socket s. The namelen argument 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 Values

The getpeername() function returns the value 0 if successful; otherwisethe value -1 is returned and the global variable errno is set to indicate the error. The call succeeds unless:

EBADF The argument s is not a valid descriptor.
ECONNRESET The connection has been reset by the peer.
ENOTSOCK The arguments is a file, not a socket.
ENOTCONN The socket is not connected.
ENOBUFS Insufficient resources were available in the system to perform the operation.
EFAULT The name argument points to memory not in a valid part of the process address space.


Versions Link to
INtime 4.0 netlib.lib
See Also