diff options
Diffstat (limited to 'contrib/ncurses/ncurses/tinfo/lib_print.c')
| -rw-r--r-- | contrib/ncurses/ncurses/tinfo/lib_print.c | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/contrib/ncurses/ncurses/tinfo/lib_print.c b/contrib/ncurses/ncurses/tinfo/lib_print.c new file mode 100644 index 000000000000..63ac648b5439 --- /dev/null +++ b/contrib/ncurses/ncurses/tinfo/lib_print.c @@ -0,0 +1,96 @@ +/**************************************************************************** + * Copyright (c) 1998 Free Software Foundation, Inc. * + * * + * Permission is hereby granted, free of charge, to any person obtaining a * + * copy of this software and associated documentation files (the * + * "Software"), to deal in the Software without restriction, including * + * without limitation the rights to use, copy, modify, merge, publish, * + * distribute, distribute with modifications, sublicense, and/or sell * + * copies of the Software, and to permit persons to whom the Software is * + * furnished to do so, subject to the following conditions: * + * * + * The above copyright notice and this permission notice shall be included * + * in all copies or substantial portions of the Software. * + * * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * + * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * + * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * + * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * + * * + * Except as contained in this notice, the name(s) of the above copyright * + * holders shall not be used in advertising or otherwise to promote the * + * sale, use or other dealings in this Software without prior written * + * authorization. * + ****************************************************************************/ + +/**************************************************************************** + * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 * + * and: Eric S. Raymond <esr@snark.thyrsus.com> * + ****************************************************************************/ + + +#include <curses.priv.h> + +#include <term.h> + +MODULE_ID("$Id: lib_print.c,v 1.11 1999/02/27 19:59:05 tom Exp $") + +int mcprint(char *data, int len) +/* ship binary character data to the printer via mc4/mc5/mc5p */ +{ + char *mybuf, *switchon; + size_t onsize, offsize, res; + + errno = 0; + if (!cur_term || (!prtr_non && (!prtr_on || !prtr_off))) + { + errno = ENODEV; + return(ERR); + } + + if (prtr_non) + { + switchon = tparm(prtr_non, len); + onsize = strlen(switchon); + offsize = 0; + } + else + { + switchon = prtr_on; + onsize = strlen(prtr_on); + offsize = strlen(prtr_off); + } + + if ((mybuf = typeMalloc(char, onsize + len + offsize + 1)) == (char *)0) + { + errno = ENOMEM; + return(ERR); + } + + (void) strcpy(mybuf, switchon); + memcpy(mybuf + onsize, data, len); + if (offsize) + (void) strcpy(mybuf + onsize + len, prtr_off); + + /* + * We're relying on the atomicity of UNIX writes here. The + * danger is that output from a refresh() might get interspersed + * with the printer data after the write call returns but before the + * data has actually been shipped to the terminal. If the write(2) + * operation is truly atomic we're protected from this. + */ + res = write(cur_term->Filedes, mybuf, onsize + len + offsize); + + /* + * By giving up our scheduler slot here we increase the odds that the + * kernel will ship the contiguous clist items from the last write + * immediately. + */ + (void) sleep(0); + + free(mybuf); + return(res); +} |