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returns
the current for the specified socket. The parameter should be initialized
to indicate the amount of space pointed to by On return it contains the
actual size of the name returned (in bytes).
A 0 is returned
if the call succeeds, -1 if it fails.
The call succeeds unless: The
argument is not a valid descriptor. The argument is a file, not a socket.
Insufficient resources were available in the system to perform the operation.
The parameter points to memory not in a valid part of the process address
space.
Names bound to sockets in the UNIX domain are inaccessible;
returns a zero length name.
The function call appeared in
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