1 /****************************************************************************
2 * Copyright 2018-2021,2023 Thomas E. Dickey *
3 * Copyright 1998-2011,2012 Free Software Foundation, Inc. *
4 * *
5 * Permission is hereby granted, free of charge, to any person obtaining a *
6 * copy of this software and associated documentation files (the *
7 * "Software"), to deal in the Software without restriction, including *
8 * without limitation the rights to use, copy, modify, merge, publish, *
9 * distribute, distribute with modifications, sublicense, and/or sell *
10 * copies of the Software, and to permit persons to whom the Software is *
11 * furnished to do so, subject to the following conditions: *
12 * *
13 * The above copyright notice and this permission notice shall be included *
14 * in all copies or substantial portions of the Software. *
15 * *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
19 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
22 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
23 * *
24 * Except as contained in this notice, the name(s) of the above copyright *
25 * holders shall not be used in advertising or otherwise to promote the *
26 * sale, use or other dealings in this Software without prior written *
27 * authorization. *
28 ****************************************************************************/
29
30 /****************************************************************************
31 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
32 * and: Eric S. Raymond <esr@snark.thyrsus.com> *
33 * and: Thomas E. Dickey 1996-on *
34 * and: Juergen Pfeifer *
35 ****************************************************************************/
36
37 #include <curses.priv.h>
38
39 #ifndef CUR
40 #define CUR SP_TERMTYPE
41 #endif
42
43 MODULE_ID("$Id: lib_print.c,v 1.31 2023/06/10 12:44:41 tom Exp $")
44
NCURSES_EXPORT(int)45 NCURSES_EXPORT(int)
46 NCURSES_SP_NAME(mcprint) (NCURSES_SP_DCLx char *data, int len)
47 /* ship binary character data to the printer via mc4/mc5/mc5p */
48 {
49 int result;
50 char *mybuf = NULL, *switchon;
51 size_t onsize, offsize;
52 size_t need;
53
54 errno = 0;
55 if (!HasTInfoTerminal(SP_PARM)
56 || len <= 0
57 || (!prtr_non && (!prtr_on || !prtr_off))) {
58 errno = ENODEV;
59 return (ERR);
60 }
61
62 if (prtr_non) {
63 switchon = TIPARM_1(prtr_non, len);
64 onsize = strlen(switchon);
65 offsize = 0;
66 } else {
67 switchon = prtr_on;
68 onsize = strlen(prtr_on);
69 offsize = strlen(prtr_off);
70 }
71
72 need = onsize + (size_t) len + offsize;
73
74 if (switchon == 0
75 || (mybuf = typeMalloc(char, need + 1)) == 0) {
76 free(mybuf);
77 errno = ENOMEM;
78 return (ERR);
79 }
80
81 _nc_STRCPY(mybuf, switchon, need);
82 memcpy(mybuf + onsize, data, (size_t) len);
83 if (offsize)
84 _nc_STRCPY(mybuf + onsize + len, prtr_off, need);
85
86 /*
87 * We're relying on the atomicity of UNIX writes here. The
88 * danger is that output from a refresh() might get interspersed
89 * with the printer data after the write call returns but before the
90 * data has actually been shipped to the terminal. If the write(2)
91 * operation is truly atomic we're protected from this.
92 */
93 result = (int) write(SP_PARM->_ofd, mybuf, need);
94
95 /*
96 * By giving up our scheduler slot here we increase the odds that the
97 * kernel will ship the contiguous clist items from the last write
98 * immediately.
99 */
100 #ifndef _NC_WINDOWS
101 (void) sleep(0);
102 #endif
103 free(mybuf);
104 return (result);
105 }
106
107 #if NCURSES_SP_FUNCS && !defined(USE_TERM_DRIVER)
108 NCURSES_EXPORT(int)
mcprint(char * data,int len)109 mcprint(char *data, int len)
110 {
111 return NCURSES_SP_NAME(mcprint) (CURRENT_SCREEN, data, len);
112 }
113 #endif
114