/**************************************************************************** * Copyright (c) 1998-2000,2002 Free Software Foundation, Inc.              * *                                                                          * * Permission is hereby granted, free of charge, to any person obtaining a  * * copy of this software and associated documentation files (the            * * "Software"), to deal in the Software without restriction, including      * * without limitation the rights to use, copy, modify, merge, publish,      * * distribute, distribute with modifications, sublicense, and/or sell       * * copies of the Software, and to permit persons to whom the Software is    * * furnished to do so, subject to the following conditions:                 * *                                                                          * * The above copyright notice and this permission notice shall be included  * * in all copies or substantial portions of the Software.                   * *                                                                          * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  * * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               * * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   * * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   * * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    * * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    * * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               * *                                                                          * * Except as contained in this notice, the name(s) of the above copyright   * * holders shall not be used in advertising or otherwise to promote the     * * sale, use or other dealings in this Software without prior written       * * authorization.                                                           * ****************************************************************************//**************************************************************************** *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               * *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         * ****************************************************************************/#include <curses.priv.h>#include <term.h>MODULE_ID("$Id: lib_print.c,v 1.15 2002/08/17 23:41:34 tom Exp $")NCURSES_EXPORT(int)mcprint(char *data, int len)/* ship binary character data to the printer via mc4/mc5/mc5p */{    char *mybuf, *switchon;    size_t onsize, offsize, res;    errno = 0;    if (!cur_term || (!prtr_non && (!prtr_on || !prtr_off))) {	errno = ENODEV;	return (ERR);    }    if (prtr_non) {	switchon = tparm(prtr_non, len);	onsize = strlen(switchon);	offsize = 0;    } else {	switchon = prtr_on;	onsize = strlen(prtr_on);	offsize = strlen(prtr_off);    }    if (switchon == 0	|| (mybuf = typeMalloc(char, onsize + len + offsize + 1)) == 0) {	errno = ENOMEM;	return (ERR);    }    (void) strcpy(mybuf, switchon);    memcpy(mybuf + onsize, data, (unsigned) len);    if (offsize)	(void) strcpy(mybuf + onsize + len, prtr_off);    /*     * We're relying on the atomicity of UNIX writes here.  The     * danger is that output from a refresh() might get interspersed     * with the printer data after the write call returns but before the     * data has actually been shipped to the terminal.  If the write(2)     * operation is truly atomic we're protected from this.     */    res = write(cur_term->Filedes, mybuf, onsize + len + offsize);    /*     * By giving up our scheduler slot here we increase the odds that the     * kernel will ship the contiguous clist items from the last write     * immediately.     */    (void) sleep(0);    free(mybuf);    return (res);}