mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-30 12:04:07 +00:00
103 lines
3.4 KiB
C
103 lines
3.4 KiB
C
/*
|
|
* 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[] = "@(#)wwenviron.c 8.1 (Berkeley) 6/6/93";
|
|
#endif /* not lint */
|
|
|
|
#include "ww.h"
|
|
#if !defined(OLD_TTY) && !defined(TIOCSCTTY) && !defined(TIOCNOTTY)
|
|
#include <sys/ioctl.h>
|
|
#endif
|
|
#include <sys/signal.h>
|
|
|
|
/*
|
|
* Set up the environment of this process to run in window 'wp'.
|
|
*/
|
|
wwenviron(wp)
|
|
register struct ww *wp;
|
|
{
|
|
register i;
|
|
#ifndef TIOCSCTTY
|
|
int pgrp = getpid();
|
|
#endif
|
|
char buf[1024];
|
|
|
|
#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) setpgrp(pgrp, pgrp);
|
|
#endif
|
|
/* SIGPIPE is the only one we ignore */
|
|
(void) signal(SIGPIPE, SIG_DFL);
|
|
(void) sigsetmask(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;
|
|
}
|