/*
* Set up the environment of this process to run in window 'wp'.
*/
int
wwenviron(struct ww *wp)
{
int i;
#ifndef TIOCSCTTY
int pgrp = getpid();
#endif
char buf[1024];
sigset_t nsigset;
#ifndef TIOCSCTTY
if ((i = open("/dev/tty", 0)) < 0)
goto bad;
if (ioctl(i, TIOCNOTTY, (char *)0) < 0)
goto bad;
(void) close(i);
#endif
if ((i = wp->ww_socket) < 0) {
if ((i = open(wp->ww_ttyname, 2)) < 0)
goto bad;
if (wwsettty(i, &wwwintty) < 0)
goto bad;
if (wwsetttysize(i, wp->ww_w.nr, wp->ww_w.nc) < 0)
goto bad;
}
(void) dup2(i, 0);
(void) dup2(i, 1);
(void) dup2(i, 2);
(void) close(i);
#ifdef TIOCSCTTY
(void) setsid();
(void) ioctl(0, TIOCSCTTY, 0);
#else
(void) ioctl(0, TIOCSPGRP, (char *)&pgrp);
(void) setpgid(pgrp, pgrp);
#endif
/* SIGPIPE is the only one we ignore */
(void) signal(SIGPIPE, SIG_DFL);
sigemptyset(&nsigset);
sigprocmask(SIG_SETMASK, &nsigset, (sigset_t *)0);
/*
* Two conditions that make destructive setenv ok:
* 1. setenv() copies the string,
* 2. we've already called tgetent which copies the termcap entry.
*/
(void) sprintf(buf, "%sco#%d:li#%d:%s",
WWT_TERMCAP, wp->ww_w.nc, wp->ww_w.nr, wwwintermcap);
(void) setenv("TERMCAP", buf, 1);
(void) sprintf(buf, "%d", wp->ww_id + 1);
(void) setenv("WINDOW_ID", buf, 1);
return 0;
bad:
wwerrno = WWE_SYS;
return -1;
}
wwend()
{
wwupdate();
if (tt.tt_insert)
(*tt.tt_setinsert)(0);
if (tt.tt_modes)
(*tt.tt_setmodes)(0);
(*tt.tt_move)(tt.tt_nrow - 1, 0);
(*tt.tt_end)();
ttflush();
(void) wwsettty(0, &wwoldtty, &wwnewtty);
}
wwsuspend()
{
int (*oldsig)();
oldsig = signal(SIGTSTP, SIG_IGN);
wwend();
(void) signal(SIGTSTP, SIG_DFL);
(void) kill(0, SIGTSTP);
(void) signal(SIGTSTP, SIG_IGN);
(void) wwsettty(0, &wwnewtty, &wwoldtty);
(*tt.tt_init)();
wwredraw();
(void) signal(SIGTSTP, oldsig);
}
wwinit()
{
register i, j;
char *kp;
int s;
wwdtablesize = getdtablesize();
wwhead.ww_forw = &wwhead;
wwhead.ww_back = &wwhead;
s = sigblock(sigmask(SIGIO));
if (signal(SIGIO, wwrint) == BADSIG ||
signal(SIGCHLD, wwchild) == 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_iflag |= INPCK;
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;
#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;
for (i = 0; i < wwnrow; i++)
for (j = 0; j < wwncol; j++)
wwos[i][j].c_w = ' ';
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 = ' ';
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);
(void) sigsetmask(s);
/* catch typeahead before ASYNC was set */
(void) kill(getpid(), SIGIO);
xxstart();
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;
}
