/*
     * For backward compatibility with previous versions of Tcl, we use
     * "file%d" as the base name for pipes even though it would be more
     * natural to use "pipe%d". Use the pointer to keep the channel names
     * unique, in case channels share handles (stdin/stdout).
     */

    sprintf(channelName, "file%" TCL_I_MODIFIER "x", (size_t) infoPtr);
    infoPtr->channel = Tcl_CreateChannel(&pipeChannelType, channelName,
	    infoPtr, infoPtr->validMask);

    /*
     * Pipes have AUTO translation mode on Windows and ^Z eof char, which
     * means that a ^Z will be appended to them at close. This is needed for
     * Windows programs that expect a ^Z at EOF.