GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libcurses/tinfo/lib_print.c Lines: 0 23 0.0 %
Date: 2017-11-07 Branches: 0 16 0.0 %

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/* $OpenBSD: lib_print.c,v 1.5 2010/01/12 23:22:06 nicm Exp $ */
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/****************************************************************************
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 * Copyright (c) 1998-2002,2006 Free Software Foundation, Inc.              *
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 *                                                                          *
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 * Permission is hereby granted, free of charge, to any person obtaining a  *
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 * copy of this software and associated documentation files (the            *
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 * "Software"), to deal in the Software without restriction, including      *
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 * without limitation the rights to use, copy, modify, merge, publish,      *
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 * distribute, distribute with modifications, sublicense, and/or sell       *
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 * copies of the Software, and to permit persons to whom the Software is    *
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 * furnished to do so, subject to the following conditions:                 *
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 *                                                                          *
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 * The above copyright notice and this permission notice shall be included  *
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 * in all copies or substantial portions of the Software.                   *
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 *                                                                          *
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
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 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
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 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
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 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
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 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
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 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
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 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
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 *                                                                          *
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 * Except as contained in this notice, the name(s) of the above copyright   *
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 * holders shall not be used in advertising or otherwise to promote the     *
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 * sale, use or other dealings in this Software without prior written       *
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 * authorization.                                                           *
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 ****************************************************************************/
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/****************************************************************************
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 *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
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 *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
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 ****************************************************************************/
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#include <curses.priv.h>
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#include <term.h>
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MODULE_ID("$Id: lib_print.c,v 1.5 2010/01/12 23:22:06 nicm Exp $")
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NCURSES_EXPORT(int)
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mcprint(char *data, int len)
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/* ship binary character data to the printer via mc4/mc5/mc5p */
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{
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    char *mybuf, *switchon;
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    size_t onsize, offsize, res;
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    errno = 0;
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    if (!cur_term || (!prtr_non && (!prtr_on || !prtr_off))) {
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	errno = ENODEV;
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	return (ERR);
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    }
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    if (prtr_non) {
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	switchon = TPARM_1(prtr_non, len);
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	onsize = strlen(switchon);
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	offsize = 0;
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    } else {
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	switchon = prtr_on;
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	onsize = strlen(prtr_on);
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	offsize = strlen(prtr_off);
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    }
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    res = onsize + len + offsize + 1;
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    if (switchon == 0 || (mybuf = typeMalloc(char, res)) == 0) {
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	errno = ENOMEM;
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	return (ERR);
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    }
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    (void) strlcpy(mybuf, switchon, res);
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    memcpy(mybuf + onsize, data, (unsigned) len);
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    if (offsize)
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	(void) strlcpy(mybuf + onsize + len, prtr_off, res - onsize - len);
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    /*
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     * We're relying on the atomicity of UNIX writes here.  The
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     * danger is that output from a refresh() might get interspersed
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     * with the printer data after the write call returns but before the
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     * data has actually been shipped to the terminal.  If the write(2)
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     * operation is truly atomic we're protected from this.
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     */
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    res = write(cur_term->Filedes, mybuf, onsize + len + offsize);
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    /*
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     * By giving up our scheduler slot here we increase the odds that the
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     * kernel will ship the contiguous clist items from the last write
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     * immediately.
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     */
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    (void) sleep(0);
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    free(mybuf);
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    return (res);
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}