diff options
Diffstat (limited to 'usr.bin/window/wwinit.c')
| -rw-r--r-- | usr.bin/window/wwinit.c | 388 |
1 files changed, 388 insertions, 0 deletions
diff --git a/usr.bin/window/wwinit.c b/usr.bin/window/wwinit.c new file mode 100644 index 0000000..0581126 --- /dev/null +++ b/usr.bin/window/wwinit.c @@ -0,0 +1,388 @@ +/* + * Copyright (c) 1983, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Edward Wang at The University of California, Berkeley. + * + * 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[] = "@(#)wwinit.c 8.1 (Berkeley) 6/6/93"; +#endif /* not lint */ + +#include "ww.h" +#include "tt.h" +#include <sys/signal.h> +#include <fcntl.h> +#include "char.h" + +wwinit() +{ + register i, j; + char *kp; + int s; + + wwdtablesize = getdtablesize(); + wwhead.ww_forw = &wwhead; + wwhead.ww_back = &wwhead; + + s = sigblock(sigmask(SIGIO) | sigmask(SIGCHLD) | sigmask(SIGALRM) | + sigmask(SIGHUP) | sigmask(SIGTERM)); + if (signal(SIGIO, wwrint) == BADSIG || + signal(SIGCHLD, wwchild) == BADSIG || + signal(SIGHUP, wwquit) == BADSIG || + signal(SIGTERM, wwquit) == BADSIG || + signal(SIGPIPE, SIG_IGN) == BADSIG) { + wwerrno = WWE_SYS; + return -1; + } + + if (wwgettty(0, &wwoldtty) < 0) + return -1; + wwwintty = wwoldtty; +#ifdef OLD_TTY + wwwintty.ww_sgttyb.sg_flags &= ~XTABS; + wwnewtty.ww_sgttyb = wwoldtty.ww_sgttyb; + wwnewtty.ww_sgttyb.sg_erase = -1; + wwnewtty.ww_sgttyb.sg_kill = -1; + wwnewtty.ww_sgttyb.sg_flags |= CBREAK; + wwnewtty.ww_sgttyb.sg_flags &= ~(ECHO|CRMOD); + wwnewtty.ww_tchars.t_intrc = -1; + wwnewtty.ww_tchars.t_quitc = -1; + wwnewtty.ww_tchars.t_startc = -1; + wwnewtty.ww_tchars.t_stopc = -1; + wwnewtty.ww_tchars.t_eofc = -1; + wwnewtty.ww_tchars.t_brkc = -1; + wwnewtty.ww_ltchars.t_suspc = -1; + wwnewtty.ww_ltchars.t_dsuspc = -1; + wwnewtty.ww_ltchars.t_rprntc = -1; + wwnewtty.ww_ltchars.t_flushc = -1; + wwnewtty.ww_ltchars.t_werasc = -1; + wwnewtty.ww_ltchars.t_lnextc = -1; + wwnewtty.ww_lmode = wwoldtty.ww_lmode | LLITOUT; + wwnewtty.ww_ldisc = wwoldtty.ww_ldisc; +#else +#ifndef OXTABS +#define OXTABS XTABS +#endif +#ifndef _POSIX_VDISABLE +#define _POSIX_VDISABLE -1 +#endif + wwwintty.ww_termios.c_oflag &= ~OXTABS; + wwnewtty.ww_termios = wwoldtty.ww_termios; + wwnewtty.ww_termios.c_iflag &= + ~(ISTRIP | INLCR | IGNCR | ICRNL | IXON | IXOFF | IMAXBEL); + wwnewtty.ww_termios.c_oflag = 0; + wwnewtty.ww_termios.c_cflag &= ~(CSIZE | PARENB); + wwnewtty.ww_termios.c_cflag |= CS8; + wwnewtty.ww_termios.c_lflag = 0; + for (i = 0; i < NCCS; i++) + wwnewtty.ww_termios.c_cc[i] = _POSIX_VDISABLE; + wwnewtty.ww_termios.c_cc[VMIN] = 0; + wwnewtty.ww_termios.c_cc[VTIME] = 0; +#endif + wwnewtty.ww_fflags = wwoldtty.ww_fflags | FASYNC; + if (wwsettty(0, &wwnewtty) < 0) + goto bad; + + if ((wwterm = getenv("TERM")) == 0) { + wwerrno = WWE_BADTERM; + goto bad; + } + if (tgetent(wwtermcap, wwterm) != 1) { + wwerrno = WWE_BADTERM; + goto bad; + } +#ifdef OLD_TTY + wwospeed = wwoldtty.ww_sgttyb.sg_ospeed; +#else + wwospeed = cfgetospeed(&wwoldtty.ww_termios); +#endif + switch (wwospeed) { + default: + case B0: + wwbaud = 0; + break; + case B50: + wwbaud = 50; + break; + case B75: + wwbaud = 75; + break; + case B110: + wwbaud = 110; + break; + case B134: + wwbaud = 134; + break; + case B150: + wwbaud = 150; + break; + case B200: + wwbaud = 200; + break; + case B300: + wwbaud = 300; + break; + case B600: + wwbaud = 600; + break; + case B1200: + wwbaud = 1200; + break; + case B1800: + wwbaud = 1800; + break; + case B2400: + wwbaud = 2400; + break; + case B4800: + wwbaud = 4800; + break; + case B9600: + wwbaud = 9600; + break; +#ifdef B19200 + case B19200: +#else + case EXTA: +#endif + wwbaud = 19200; + break; +#ifdef B38400 + case B38400: +#else + case EXTB: +#endif + wwbaud = 38400; + break; + } + + if (xxinit() < 0) + goto bad; + wwnrow = tt.tt_nrow; + wwncol = tt.tt_ncol; + wwavailmodes = tt.tt_availmodes; + wwwrap = tt.tt_wrap; + + if (wwavailmodes & WWM_REV) + wwcursormodes = WWM_REV | wwavailmodes & WWM_BLK; + else if (wwavailmodes & WWM_UL) + wwcursormodes = WWM_UL; + + if ((wwib = malloc((unsigned) 512)) == 0) + goto bad; + wwibe = wwib + 512; + wwibq = wwibp = wwib; + + if ((wwsmap = wwalloc(0, 0, wwnrow, wwncol, sizeof (char))) == 0) + goto bad; + for (i = 0; i < wwnrow; i++) + for (j = 0; j < wwncol; j++) + wwsmap[i][j] = WWX_NOBODY; + + wwos = (union ww_char **) + wwalloc(0, 0, wwnrow, wwncol, sizeof (union ww_char)); + if (wwos == 0) + goto bad; + /* wwos is cleared in wwstart1() */ + wwns = (union ww_char **) + wwalloc(0, 0, wwnrow, wwncol, sizeof (union ww_char)); + if (wwns == 0) + goto bad; + for (i = 0; i < wwnrow; i++) + for (j = 0; j < wwncol; j++) + wwns[i][j].c_w = ' '; + if (tt.tt_checkpoint) { + /* wwcs is also cleared in wwstart1() */ + wwcs = (union ww_char **) + wwalloc(0, 0, wwnrow, wwncol, sizeof (union ww_char)); + if (wwcs == 0) + goto bad; + } + + wwtouched = malloc((unsigned) wwnrow); + if (wwtouched == 0) { + wwerrno = WWE_NOMEM; + goto bad; + } + for (i = 0; i < wwnrow; i++) + wwtouched[i] = 0; + + wwupd = (struct ww_update *) malloc((unsigned) wwnrow * sizeof *wwupd); + if (wwupd == 0) { + wwerrno = WWE_NOMEM; + goto bad; + } + + wwindex[WWX_NOBODY] = &wwnobody; + wwnobody.ww_order = NWW; + + kp = wwwintermcap; + if (wwavailmodes & WWM_REV) + wwaddcap1(WWT_REV, &kp); + if (wwavailmodes & WWM_BLK) + wwaddcap1(WWT_BLK, &kp); + if (wwavailmodes & WWM_UL) + wwaddcap1(WWT_UL, &kp); + if (wwavailmodes & WWM_GRP) + wwaddcap1(WWT_GRP, &kp); + if (wwavailmodes & WWM_DIM) + wwaddcap1(WWT_DIM, &kp); + if (wwavailmodes & WWM_USR) + wwaddcap1(WWT_USR, &kp); + if (tt.tt_insline && tt.tt_delline || tt.tt_setscroll) + wwaddcap1(WWT_ALDL, &kp); + if (tt.tt_inschar) + wwaddcap1(WWT_IMEI, &kp); + if (tt.tt_insspace) + wwaddcap1(WWT_IC, &kp); + if (tt.tt_delchar) + wwaddcap1(WWT_DC, &kp); + wwaddcap("kb", &kp); + wwaddcap("ku", &kp); + wwaddcap("kd", &kp); + wwaddcap("kl", &kp); + wwaddcap("kr", &kp); + wwaddcap("kh", &kp); + if ((j = tgetnum("kn")) >= 0) { + char cap[32]; + + (void) sprintf(kp, "kn#%d:", j); + for (; *kp; kp++) + ; + for (i = 1; i <= j; i++) { + (void) sprintf(cap, "k%d", i); + wwaddcap(cap, &kp); + cap[0] = 'l'; + wwaddcap(cap, &kp); + } + } + /* + * It's ok to do this here even if setenv() is destructive + * since tt_init() has already made its own copy of it and + * wwterm now points to the copy. + */ + (void) setenv("TERM", WWT_TERM, 1); +#ifdef TERMINFO + if (wwterminfoinit() < 0) + goto bad; +#endif + + if (tt.tt_checkpoint) + if (signal(SIGALRM, wwalarm) == BADSIG) { + wwerrno = WWE_SYS; + goto bad; + } + /* catch typeahead before ASYNC was set */ + (void) kill(getpid(), SIGIO); + wwstart1(); + (void) sigsetmask(s); + return 0; +bad: + /* + * Don't bother to free storage. We're supposed + * to exit when wwinit fails anyway. + */ + (void) wwsettty(0, &wwoldtty); + (void) signal(SIGIO, SIG_DFL); + (void) sigsetmask(s); + return -1; +} + +wwaddcap(cap, kp) + register char *cap; + register char **kp; +{ + char tbuf[512]; + char *tp = tbuf; + register char *str, *p; + + if ((str = tgetstr(cap, &tp)) != 0) { + while (*(*kp)++ = *cap++) + ; + (*kp)[-1] = '='; + while (*str) { + for (p = unctrl(*str++); *(*kp)++ = *p++;) + ; + (*kp)--; + } + *(*kp)++ = ':'; + **kp = 0; + } +} + +wwaddcap1(cap, kp) + register char *cap; + register char **kp; +{ + while (*(*kp)++ = *cap++) + ; + (*kp)--; +} + +wwstart() +{ + register i; + + (void) wwsettty(0, &wwnewtty); + for (i = 0; i < wwnrow; i++) + wwtouched[i] = WWU_TOUCHED; + wwstart1(); +} + +wwstart1() +{ + register i, j; + + for (i = 0; i < wwnrow; i++) + for (j = 0; j < wwncol; j++) { + wwos[i][j].c_w = ' '; + if (tt.tt_checkpoint) + wwcs[i][j].c_w = ' '; + } + xxstart(); + if (tt.tt_checkpoint) + wwdocheckpoint = 1; +} + +/* + * Reset data structures and terminal from an unknown state. + * Restoring wwos has been taken care of elsewhere. + */ +wwreset() +{ + register i; + + xxreset(); + for (i = 0; i < wwnrow; i++) + wwtouched[i] = WWU_TOUCHED; +} |
