added linesize argument to readline()

[unix-history] / usr / src / usr.bin / window / wwenviron.c

diff --git a/usr/src/usr.bin/window/wwenviron.c b/usr/src/usr.bin/window/wwenviron.c
index b5355d0..8dc4956 100644 (file)
--- a/usr/src/usr.bin/window/wwenviron.c
+++ b/usr/src/usr.bin/window/wwenviron.c
@@ -1,8 +1,26 @@
+/*
+ * Copyright (c) 1983 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * provided that the above copyright notice and this paragraph are
+ * duplicated in all such forms and that any documentation,
+ * advertising materials, and other materials related to such
+ * distribution and use acknowledge that the software was developed
+ * by the University of California, Berkeley.  The name of the
+ * University may not be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+

 #ifndef lint
 #ifndef lint

-static char sccsid[] = "@(#)wwenviron.c        3.11 %G%";
-#endif
+static char sccsid[] = "@(#)wwenviron.c        3.20 (Berkeley) %G%";
+#endif /* not lint */

 
 #include "ww.h"
 
 #include "ww.h"

+#include <sys/signal.h>

 
 /*
  * Set up the environment of this process to run in window 'wp'.
 
 /*
  * Set up the environment of this process to run in window 'wp'.


@@ -12,10 +30,11 @@ register struct ww *wp;
 {
        register i;
        int pgrp = getpid();
 {
        register i;
        int pgrp = getpid();

+       char buf[1024];

 
        if ((i = open("/dev/tty", 0)) < 0)
                goto bad;
 
        if ((i = open("/dev/tty", 0)) < 0)
                goto bad;

-       if (ioctl(i, (int)TIOCNOTTY, (char *)0) < 0)
+       if (ioctl(i, TIOCNOTTY, (char *)0) < 0)

                goto bad;
        (void) close(i);
        if ((i = wp->ww_socket) < 0 && (i = open(wp->ww_ttyname, 2)) < 0)
                goto bad;
        (void) close(i);
        if ((i = wp->ww_socket) < 0 && (i = open(wp->ww_ttyname, 2)) < 0)


@@ -25,15 +44,21 @@ register struct ww *wp;
        (void) dup2(i, 2);
        for (i = wwdtablesize - 1; i > 2; i--)
                (void) close(i);
        (void) dup2(i, 2);
        for (i = wwdtablesize - 1; i > 2; i--)
                (void) close(i);

-       (void) ioctl(0, (int)TIOCSPGRP, (char *)&pgrp);
+       (void) ioctl(0, TIOCSPGRP, (char *)&pgrp);

        (void) setpgrp(pgrp, pgrp);
        (void) setpgrp(pgrp, pgrp);

-
-       (void) sprintf(wwwintermcap, "TERMCAP=%sco#%d:li#%d:%s%s%s%s",
-               WWT_TERMCAP, wp->ww_w.nc, wp->ww_w.nr,
-               wwavailmodes & WWM_REV ? WWT_REV : "",
-               wwavailmodes & WWM_UL ? WWT_UL : "",
-               wwavailmodes & WWM_GRP ? WWT_GRP : "",
-               wwkeys);
+       /* 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 0;
 bad:
        wwerrno = WWE_SYS;