Patch-ID# T100188-02
Keywords: TIOCCONS re-direction security console pty
Synopsis: SunOS 4.1.1;4.1.2: pty can get output from another application
Date: 10/Feb/92
 
SunOS release: 4.1.1, 4.1.2
 
Unbundled Product:
 
Unbundled Release:
 
Topic: 
 
BugId's fixed with this patch: 1008324 1040722 1070495

Architectures for which this patch is available: sun3 sun3x sun4 sun4c sun4m

Patches which may conflict with this patch: 100187-01, 100414-01 (obsoleted)

Obsoleted by:

Problem Description: This patch combines 3 fixes:
        1. TIOCCONS can be used to re-direct console output/input away from
                "console" (bugIDs 1008324)
        2. Kernel programs using pty can get output from previous application.
           (Formerly patch 100414-01, bugID 1070495)
        3. Process not letting go of a pty (bugID 1040722)

Patch contains kernel object modules for:

cons.o
tty_pty.o
zs_async.o
mcp_async.o
mti.o


NOTE: The sun4c does not use mti.o nor mcp_async.o since this architecture 
      does not have VME slots and therefore cannot use the ALM-2 Asynchronous 
      Line Multiplexer or Systech MTI-800/1600. So those modules are not needed.

      SunOs 4.1.2 release already contains TIOCCONS fixes.  Therefore,
      only object modules cons.o and tty_pty.o are required for 4.1.2.

      
INSTALL:

AS ROOT:

Save aside the object modules from the FCS tapes as a precaution:
(Note that {4.1.1,4.1.2} indicates either "4.1.2" or "4.1.1".)

# For SunOS 4.1.1 (except sun4c doesn't use mti.o nor mcp_async.o):
mv /sys/`arch -k`/{4.1.1,4.1.2}/OBJ/zs_async.o /sys/`arch -k`/OBJ/zs_async.o.orig
mv /sys/`arch -k`/{4.1.1,4.1.2}/OBJ/mcp_async.o /sys/`arch -k`/OBJ/mcp_async.o.orig
mv /sys/`arch -k`/{4.1.1,4.1.2}/OBJ/mti.o /sys/`arch -k`/OBJ/mti.o.orig
mv /sys/`arch -k`/{4.1.1,4.1.2}/OBJ/cons.o /sys/`arch -k`/OBJ/cons.o.orig
mv /sys/`arch -k`/{4.1.1,4.1.2}/OBJ/tty_pty.o /sys/`arch -k`/OBJ/tty_pty.o.orig

# For SunOS 4.1.2:
mv /sys/`arch -k`/{4.1.1,4.1.2}/OBJ/cons.o /sys/`arch -k`/OBJ/cons.o.orig
mv /sys/`arch -k`/{4.1.1,4.1.2}/OBJ/tty_pty.o /sys/`arch -k`/OBJ/tty_pty.o.orig

Copy the new ".o" files to the OBJ directory (for SunOS 4.1.1 and 4.1.2):

cp `arch -k`/{4.1.1,4.1.2}/*.o /sys/`arch -k`/OBJ

Build and install a new kernel:
rerun /etc/config <kernel-name> and do a "make" for the new kernel
Please refer to the System and Network Administration Manual for details
on how to configure and install a custom kernel.