Section (2) getsockname
getsockname — get socket name
|struct sockaddr *addr,|
getsockname() returns the
current address to which the socket
sockfd is bound, in the buffer
pointed to by
should be initialized to indicate the amount of space (in
bytes) pointed to by
addr. On return it contains the
actual size of the socket address.
The returned address is truncated if the buffer provided
is too small; in this case,
addrlen will return a value
greater than was supplied to the call.
On success, zero is returned. On error, −1 is
errno is set
sockfdis not a valid file descriptor.
addrargument points to memory not in a valid part of the process address space.
addrlenis invalid (e.g., is negative).
Insufficient resources were available in the system to perform the operation.
The file descriptor
sockfddoes not refer to a socket.
For background on the socklen_t type, see accept(2).
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(#)getsockname.2 6.4 (Berkeley) 3/10/91
Modified Sat Jul 24 16:30:29 1993 by Rik Faith <faithcs.unc.edu>
Modified Tue Oct 22 00:22:35 EDT 1996 by Eric S. Raymond <esrthyrsus.com>
Modified Sun Mar 28 21:26:46 1999 by Andries Brouwer <aebcwi.nl>