1io_passfd(3)               Library Functions Manual               io_passfd(3)
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NAME

6       io_passfd - pass a file descriptor over a Unix Domain socket
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SYNTAX

9       #include <io.h>
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11       int io_passfd(int64 sock,int64 fd);
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DESCRIPTION

14       io_passfd  transfers the file descriptor fd over the Unix Domain socket
15       sock.  This works much like dup(2), only that the copy of the  descrip‐
16       tor appears not in this process but at the other end of the Unix Domain
17       socket (which therefore must be a process on the same system).
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19       The peer can then use io_receivefd(3) to receive the file descriptor.
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21       Note that the passed descriptor stays open in the sending process.
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RETURN VALUE

24       io_passfd returns 0 on success, -1  on  error  (setting  errno  accord‐
25       ingly).
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SEE ALSO

28       io_receivefd(3)
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32                                                                  io_passfd(3)