getpeername - get name of connected peer
cc [ flag ... ] file ... -lsocket -lnsl [ library ... ]
#include <sys/types.h>
#include <sys/socket.h>
int getpeername(int s, struct sockaddr *name, socklen_t *namelen);
getpeername() returns the name of the peer connected to socket s.
The int pointed to by 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), prior to
any truncation. The name is truncated if the buffer provided is too small.
If successful, getpeername() returns 0; otherwise it returns
−1 and sets errno to indicate the error.
The call succeeds unless:
EBADF
The argument s is not a valid descriptor.
ENOMEM
There was insufficient user memory for the operation to
complete.
ENOSR
There were insufficient STREAMS resources available for
the operation to complete.
ENOTCONN
The socket is not connected.
ENOTSOCK
The argument s is not a socket.
See attributes(7) for descriptions of the following attributes:
| ATTRIBUTE
TYPE |
ATTRIBUTE VALUE |
| MT-Level |
Safe |