getpeername
function returns the address of the socket that
socket is connected to; it stores the address in the memory space
specified by addr and length-ptr. It stores the length of
the address in *length-ptr
.
See section Socket Addresses, for information about the format of the
address. In some operating systems, getpeername
works only for
sockets in the Internet domain.
The return value is 0
on success and -1
on error. The
following errno
error conditions are defined for this function:
EBADF
ENOTSOCK
ENOTCONN
ENOBUFS
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