1 /* $OpenBSD: lib_print.c,v 1.6 2023/10/17 09:52:09 nicm Exp $ */
2
3 /****************************************************************************
4 * Copyright 2018-2021,2023 Thomas E. Dickey *
5 * Copyright 1998-2011,2012 Free Software Foundation, Inc. *
6 * *
7 * Permission is hereby granted, free of charge, to any person obtaining a *
8 * copy of this software and associated documentation files (the *
9 * "Software"), to deal in the Software without restriction, including *
10 * without limitation the rights to use, copy, modify, merge, publish, *
11 * distribute, distribute with modifications, sublicense, and/or sell *
12 * copies of the Software, and to permit persons to whom the Software is *
13 * furnished to do so, subject to the following conditions: *
14 * *
15 * The above copyright notice and this permission notice shall be included *
16 * in all copies or substantial portions of the Software. *
17 * *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
21 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
24 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
25 * *
26 * Except as contained in this notice, the name(s) of the above copyright *
27 * holders shall not be used in advertising or otherwise to promote the *
28 * sale, use or other dealings in this Software without prior written *
29 * authorization. *
30 ****************************************************************************/
31
32 /****************************************************************************
33 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
34 * and: Eric S. Raymond <esr@snark.thyrsus.com> *
35 * and: Thomas E. Dickey 1996-on *
36 * and: Juergen Pfeifer *
37 ****************************************************************************/
38
39 #include <curses.priv.h>
40
41 #ifndef CUR
42 #define CUR SP_TERMTYPE
43 #endif
44
45 MODULE_ID("$Id: lib_print.c,v 1.6 2023/10/17 09:52:09 nicm Exp $")
46
NCURSES_EXPORT(int)47 NCURSES_EXPORT(int)
48 NCURSES_SP_NAME(mcprint) (NCURSES_SP_DCLx char *data, int len)
49 /* ship binary character data to the printer via mc4/mc5/mc5p */
50 {
51 int result;
52 char *mybuf = NULL, *switchon;
53 size_t onsize, offsize;
54 size_t need;
55
56 errno = 0;
57 if (!HasTInfoTerminal(SP_PARM)
58 || len <= 0
59 || (!prtr_non && (!prtr_on || !prtr_off))) {
60 errno = ENODEV;
61 return (ERR);
62 }
63
64 if (prtr_non) {
65 switchon = TIPARM_1(prtr_non, len);
66 onsize = strlen(switchon);
67 offsize = 0;
68 } else {
69 switchon = prtr_on;
70 onsize = strlen(prtr_on);
71 offsize = strlen(prtr_off);
72 }
73
74 need = onsize + (size_t) len + offsize;
75
76 if (switchon == 0
77 || (mybuf = typeMalloc(char, need + 1)) == 0) {
78 free(mybuf);
79 errno = ENOMEM;
80 return (ERR);
81 }
82
83 _nc_STRCPY(mybuf, switchon, need);
84 memcpy(mybuf + onsize, data, (size_t) len);
85 if (offsize)
86 _nc_STRCPY(mybuf + onsize + len, prtr_off, need);
87
88 /*
89 * We're relying on the atomicity of UNIX writes here. The
90 * danger is that output from a refresh() might get interspersed
91 * with the printer data after the write call returns but before the
92 * data has actually been shipped to the terminal. If the write(2)
93 * operation is truly atomic we're protected from this.
94 */
95 result = (int) write(SP_PARM->_ofd, mybuf, need);
96
97 /*
98 * By giving up our scheduler slot here we increase the odds that the
99 * kernel will ship the contiguous clist items from the last write
100 * immediately.
101 */
102 #ifndef _NC_WINDOWS
103 (void) sleep(0);
104 #endif
105 free(mybuf);
106 return (result);
107 }
108
109 #if NCURSES_SP_FUNCS && !defined(USE_TERM_DRIVER)
110 NCURSES_EXPORT(int)
mcprint(char * data,int len)111 mcprint(char *data, int len)
112 {
113 return NCURSES_SP_NAME(mcprint) (CURRENT_SCREEN, data, len);
114 }
115 #endif
116