1/****************************************************************************
2 * Copyright (c) 1998-2011,2012 Free Software Foundation, Inc.              *
3 *                                                                          *
4 * Permission is hereby granted, free of charge, to any person obtaining a  *
5 * copy of this software and associated documentation files (the            *
6 * "Software"), to deal in the Software without restriction, including      *
7 * without limitation the rights to use, copy, modify, merge, publish,      *
8 * distribute, distribute with modifications, sublicense, and/or sell       *
9 * copies of the Software, and to permit persons to whom the Software is    *
10 * furnished to do so, subject to the following conditions:                 *
11 *                                                                          *
12 * The above copyright notice and this permission notice shall be included  *
13 * in all copies or substantial portions of the Software.                   *
14 *                                                                          *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
18 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
22 *                                                                          *
23 * Except as contained in this notice, the name(s) of the above copyright   *
24 * holders shall not be used in advertising or otherwise to promote the     *
25 * sale, use or other dealings in this Software without prior written       *
26 * authorization.                                                           *
27 ****************************************************************************/
28
29/****************************************************************************
30 *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
31 *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
32 *     and: Thomas E. Dickey                        1996-on                 *
33 *     and: Juergen Pfeifer                                                 *
34 ****************************************************************************/
35
36#include <curses.priv.h>
37
38#ifndef CUR
39#define CUR SP_TERMTYPE
40#endif
41
42MODULE_ID("$Id: lib_print.c,v 1.23 2012/02/22 22:34:31 tom Exp $")
43
44NCURSES_EXPORT(int)
45NCURSES_SP_NAME(mcprint) (NCURSES_SP_DCLx char *data, int len)
46/* ship binary character data to the printer via mc4/mc5/mc5p */
47{
48    int result;
49    char *mybuf, *switchon;
50    size_t onsize, offsize;
51    size_t need;
52
53    errno = 0;
54    if (!HasTInfoTerminal(SP_PARM)
55	|| len <= 0
56	|| (!prtr_non && (!prtr_on || !prtr_off))) {
57	errno = ENODEV;
58	return (ERR);
59    }
60
61    if (prtr_non) {
62	switchon = TPARM_1(prtr_non, len);
63	onsize = strlen(switchon);
64	offsize = 0;
65    } else {
66	switchon = prtr_on;
67	onsize = strlen(prtr_on);
68	offsize = strlen(prtr_off);
69    }
70
71    need = onsize + (size_t) len + offsize;
72
73    if (switchon == 0
74	|| (mybuf = typeMalloc(char, need + 1)) == 0) {
75	errno = ENOMEM;
76	return (ERR);
77    }
78
79    _nc_STRCPY(mybuf, switchon, need);
80    memcpy(mybuf + onsize, data, (size_t) len);
81    if (offsize)
82	_nc_STRCPY(mybuf + onsize + len, prtr_off, need);
83
84    /*
85     * We're relying on the atomicity of UNIX writes here.  The
86     * danger is that output from a refresh() might get interspersed
87     * with the printer data after the write call returns but before the
88     * data has actually been shipped to the terminal.  If the write(2)
89     * operation is truly atomic we're protected from this.
90     */
91    result = (int) write(TerminalOf(SP_PARM)->Filedes, mybuf, need);
92
93    /*
94     * By giving up our scheduler slot here we increase the odds that the
95     * kernel will ship the contiguous clist items from the last write
96     * immediately.
97     */
98#ifndef __MINGW32__
99    (void) sleep(0);
100#endif
101    free(mybuf);
102    return (result);
103}
104
105#if NCURSES_SP_FUNCS && !defined(USE_TERM_DRIVER)
106NCURSES_EXPORT(int)
107mcprint(char *data, int len)
108{
109    return NCURSES_SP_NAME(mcprint) (CURRENT_SCREEN, data, len);
110}
111#endif
112