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 42 MODULE_ID("$Id: lib_print.c,v 1.23 2012/02/22 22:34:31 tom Exp $") 43 44 NCURSES_EXPORT(int) 45 NCURSES_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) 106 NCURSES_EXPORT(int) 107 mcprint(char *data, int len) 108 { 109 return NCURSES_SP_NAME(mcprint) (CURRENT_SCREEN, data, len); 110 } 111 #endif 112