+/*
+ * 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 3.2 83/08/18";
-#endif
+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>
-extern char **environ;
-
+/*
+ * Set up the environment of this process to run in window 'wp'.
+ */
wwenviron(wp)
register struct ww *wp;
{
register i;
- register char **p, **q;
- char **termcap = 0;
- char **env;
- char *tbuf;
-
- (void) dup2(wp->ww_tty, 0);
- (void) dup2(wp->ww_tty, 1);
- (void) dup2(wp->ww_tty, 2);
- for (i = wwdtablesize - 1; i > 2; i--)
- (void) close(i);
+#ifndef TIOCSCTTY
+ int pgrp = getpid();
+#endif
+ char buf[1024];
- i = open("/dev/tty");
- (void) ioctl(i, (int)TIOCNOTTY, (char *)0);
+#ifndef TIOCSCTTY
+ if ((i = open("/dev/tty", 0)) < 0)
+ goto bad;
+ if (ioctl(i, TIOCNOTTY, (char *)0) < 0)
+ goto bad;
(void) close(i);
- (void) open(wp->ww_ttyname, 0);
-
- for (i = 0, p = environ; *p; p++, i++)
- ;
- if ((env = (char **)malloc((unsigned)(i + 3) * sizeof (char *))) == 0)
- return; /* can't report error */
- if ((tbuf = malloc((unsigned) 1024)) == 0)
- return; /* can't report error */
- for (p = environ, q = env; *p; p++, q++) {
- if (strncmp(*p, "TERM=", 5) == 0)
- *q = WWT_TERM;
- else if (strncmp(*p, "TERMCAP=", 8) == 0)
- termcap = q;
- else
- *q = *p;
+#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;
}
- if (termcap == 0)
- termcap = q++;
- *q = 0;
- *termcap = sprintf(tbuf, "TERMCAP=%sco#%d:li#%d:",
- WWT_TERMCAP, wp->ww_w.nc, wp->ww_w.nr);
- if (wwavailmodes & WWM_REV)
- (void) strcat(tbuf, WWT_REV);
- if (wwavailmodes & WWM_UL)
- (void) strcat(tbuf, WWT_UL);
- (void) strcat(tbuf, wwkeys);
- environ = env;
+ (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;
}