/* $NetBSD: curses.c,v 1.28 2017/01/31 09:17:53 roy Exp $ */ /* * Copyright (c) 1981, 1993, 1994 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include <sys/cdefs.h> #include <stdlib.h> #ifndef lint #if 0 static char sccsid[] = "@(#)curses.c 8.3 (Berkeley) 5/4/94"; #else __RCSID("$NetBSD: curses.c,v 1.28 2017/01/31 09:17:53 roy Exp $"); #endif #endif /* not lint */ #include "curses.h" #include "curses_private.h" /* Private. */ int __echoit = 1; /* If stty indicates ECHO. */ int __pfast; int __rawmode = 0; /* If stty indicates RAW mode. */ int __noqch = 0; /* If terminal doesn't have * insert/delete line capabilities * for quick change on refresh. */ char __CA; /* * Public. * * XXX * UPPERCASE isn't used by libcurses, and is left for backward * compatibility only. */ WINDOW *curscr; /* Current screen. */ WINDOW *stdscr; /* Standard screen. */ WINDOW *__virtscr; /* Virtual screen (for doupdate()). */ SCREEN *_cursesi_screen; /* the current screen we are using */ volatile bool _reentrant; /* If true, some global vars are ro. */ int COLS; /* Columns on the screen. */ int LINES; /* Lines on the screen. */ int ESCDELAY; /* ms delay between keys for esc seq */ int TABSIZE; /* Size of a tab. */ int COLORS; /* Maximum colors on the screen */ int COLOR_PAIRS = 0; /* Maximum color pairs on the screen */ int My_term = 0; /* Use Def_term regardless. */ const char *Def_term = "unknown"; /* Default terminal type. */ char __GT; /* Gtty indicates tabs. */ char __NONL; /* Term can't hack LF doing a CR. */ char __UPPERCASE; /* Terminal is uppercase only. */ #ifdef HAVE_WCHAR /* * Copy the non-spacing character list (src_nsp) to the given character, * allocate or free storage as required. */ int _cursesi_copy_nsp(nschar_t *src_nsp, struct __ldata *ch) { nschar_t *np, *tnp, *pnp; pnp = NULL; np = src_nsp; if (np) { tnp = ch->nsp; while (np) { if (tnp) { tnp->ch = np->ch; pnp = tnp; tnp = tnp->next; } else { tnp = malloc(sizeof(nschar_t)); if (!tnp) return ERR; tnp->ch = np->ch; pnp->next = tnp; tnp->next = NULL; pnp = tnp; tnp = NULL; } np = np->next; } np = tnp; if (np) { pnp->next = NULL; __cursesi_free_nsp(np); } } else { if (ch->nsp) { __cursesi_free_nsp(ch->nsp); ch->nsp = NULL; } } return OK; } /* * Free the storage associated with a non-spacing character - traverse the * linked list until all storage is done. */ void __cursesi_free_nsp(nschar_t *inp) { nschar_t *tnp, *np; np = inp; if (np) { while (np) { tnp = np->next; free(np); np = tnp; } } } /* * Traverse all the cells in the given window free'ing the non-spacing * character storage. */ void __cursesi_win_free_nsp(WINDOW *win) { int i, j; __LDATA *sp; for (i = 0; i < win->maxy; i++) { for (sp = win->alines[i]->line, j = 0; j < win->maxx; j++, sp++) { __cursesi_free_nsp(sp->nsp); } } } #endif