NAME
	NameFromLock -- Returns the name of a locked object (V36)

   SYNOPSIS
	success = NameFromLock(lock, buffer, len)
	D0                      D1     D2    D3

	BOOL NameFromLock(BPTR, STRPTR, LONG)

   FUNCTION
	Returns a fully qualified path for the lock.  This routine is
	guaranteed not to write more than len characters into the buffer.  The
	name will be null-terminated.  NOTE: if the volume is not mounted,
	the system will request it (unless of course you set pr_WindowPtr to
	-1).  If the volume is not mounted or inserted, it will return an
	error.  If the lock passed in is NULL, "SYS:" will be returned. If
	the buffer is too short, an error will be returned, and IoErr() will
	return ERROR_LINE_TOO_LONG.

   INPUTS
	lock   - Lock of object to be examined.
	buffer - Buffer to store name.
	len    - Length of buffer.

   RESULT
	success - Success/failure indicator.

   BUGS
	Should return the name of the boot volume instead of SYS: for a NULL
	lock.

   SEE ALSO
	NameFromFH(), Lock()

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