debian man page for io_receivefd

io_receivefd(3) 					     Library Functions Manual						   io_receivefd(3)

NAME
       io_receivefd - receive a file descriptor over a Unix Domain socket

SYNTAX
       #include <io.h>

       int64 io_receivefd(int64 sock);

DESCRIPTION
       io_receivefd receives a file descriptor from the Unix Domain socket sock.  You can send a descriptor using io_passfd(3).

       io_receivefd returns -1 on error or the file descriptor.

       The underlying Unix API can send more than one descriptor at the time.  This function expects only one descriptor and will return the first
       one if more than one were sent.

SEE ALSO
       io_passfd(3)

																   io_receivefd(3)