NetBSD/lib/libcurses/initscr.c

94 lines
2.9 KiB
C

/*
* Copyright (c) 1981 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. 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.
*/
#ifndef lint
static char sccsid[] = "@(#)initscr.c 5.6 (Berkeley) 3/3/91";
#endif /* not lint */
# include "curses.ext"
# include <signal.h>
extern char *getenv();
/*
* This routine initializes the current and standard screen.
*
*/
WINDOW *
initscr() {
reg char *sp;
void tstp();
# ifdef DEBUG
fprintf(outf, "INITSCR()\n");
# endif
if (My_term)
setterm(Def_term);
else {
gettmode();
if ((sp = getenv("TERM")) == NULL)
sp = Def_term;
setterm(sp);
# ifdef DEBUG
fprintf(outf, "INITSCR: term = %s\n", sp);
# endif
}
_puts(TI);
_puts(VS);
# ifdef SIGTSTP
signal(SIGTSTP, tstp);
# endif
if (curscr != NULL) {
# ifdef DEBUG
fprintf(outf, "INITSCR: curscr = 0%o\n", curscr);
# endif
delwin(curscr);
}
# ifdef DEBUG
fprintf(outf, "LINES = %d, COLS = %d\n", LINES, COLS);
# endif
if ((curscr = newwin(LINES, COLS, 0, 0)) == ERR)
return ERR;
clearok(curscr, TRUE);
curscr->_flags &= ~_FULLLINE;
if (stdscr != NULL) {
# ifdef DEBUG
fprintf(outf, "INITSCR: stdscr = 0%o\n", stdscr);
# endif
delwin(stdscr);
}
stdscr = newwin(LINES, COLS, 0, 0);
return stdscr;
}