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package linux
import (
"net"
"golang.org/x/sys/unix"
)
// GetUcred returns the credentials from the remote end of a unix socket.
func GetUcred(conn *net.UnixConn) (*unix.Ucred, error) {
rawConn, err := conn.SyscallConn()
if err != nil {
return nil, err
}
var ucred *unix.Ucred
var ucredErr error
err = rawConn.Control(func(fd uintptr) {
ucred, ucredErr = unix.GetsockoptUcred(int(fd), unix.SOL_SOCKET, unix.SO_PEERCRED)
})
if err != nil {
return nil, err
}
if ucredErr != nil {
return nil, ucredErr
}
return ucred, nil
}
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