Julia's getsockname is different from UNIX getsockname

[amitmurthy]

Julia's getsockname :

help?> getsockname
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  getsockname(sock::Union{TCPServer, TCPSocket}) -> (IPAddr, UInt16)

  Get the IP address and the port that the given TCPSocket is connected to (or bound to, in the case of TCPServer).

UNIX:

int
     getsockname(int socket, struct sockaddr *restrict address, socklen_t *restrict address_len);

DESCRIPTION
     The getsockname() function returns the current address for the specified socket.

     int
     getpeername(int socket, struct sockaddr *restrict address, socklen_t *restrict address_len);

DESCRIPTION
     The getpeername() function returns the address of the peer connected to the specified socket.

Julia's getsockname is equivalent to UNIX's getsockname for TCPServer. For TCPSocket it is equivalent to getpeername -

julia/base/socket.jl

Lines 847 to 855 in 1129de3

	r = if isa(sock, TCPServer)
	ccall(:jl_tcp_getsockname, Int32,
	(Ptr{Void}, Ref{Cushort}, Ptr{Void}, Ref{Cuint}),
	sock.handle, rport, raddress, rfamily)
	else
	ccall(:jl_tcp_getpeername, Int32,
	(Ptr{Void}, Ref{Cushort}, Ptr{Void}, Ref{Cuint}),
	sock.handle, rport, raddress, rfamily)
	end

I suggest we mirror standard UNIX definitions and introduce a getpeername .