1 /****************************************************************************
2 * Copyright (c) 1998-2000,2002 Free Software Foundation, Inc. *
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 *
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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: *
12 * The above copyright notice and this permission notice shall be included *
13 * in all copies or substantial portions of the Software. *
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, *
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27 ****************************************************************************/
29 /****************************************************************************
30 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
31 * and: Eric S. Raymond <esr@snark.thyrsus.com> *
32 ****************************************************************************/
34 #include <curses.priv.h>
38 MODULE_ID("$Id: lib_print.c,v 1.14 2002/03/16 21:45:08 tom Exp $")
41 mcprint(char *data, int len)
42 /* ship binary character data to the printer via mc4/mc5/mc5p */
44 char *mybuf, *switchon;
45 size_t onsize, offsize, res;
48 if (!cur_term || (!prtr_non && (!prtr_on || !prtr_off))) {
54 switchon = tparm(prtr_non, len);
55 onsize = strlen(switchon);
59 onsize = strlen(prtr_on);
60 offsize = strlen(prtr_off);
63 if ((mybuf = typeMalloc(char, onsize + len + offsize + 1)) == (char *) 0) {
68 (void) strcpy(mybuf, switchon);
69 memcpy(mybuf + onsize, data, (unsigned) len);
71 (void) strcpy(mybuf + onsize + len, prtr_off);
74 * We're relying on the atomicity of UNIX writes here. The
75 * danger is that output from a refresh() might get interspersed
76 * with the printer data after the write call returns but before the
77 * data has actually been shipped to the terminal. If the write(2)
78 * operation is truly atomic we're protected from this.
80 res = write(cur_term->Filedes, mybuf, onsize + len + offsize);
83 * By giving up our scheduler slot here we increase the odds that the
84 * kernel will ship the contiguous clist items from the last write