Patch Name:  PHNE_8164

Patch Description: s700_800 10.20 nettl patch

Creation Date: 96/08/03

Post Date:  96/08/07

Repost: 97/05/16
        A problem was discovered with replacement patch PHNE_9081.
        Patch PHNE_9081 can cause formatted network trace information
        to be corrupted for some network subsystems, resulting in an
        inability to analyze network traffic.  Patch PHNE_8164 will
        be re-released until a replacement patch is available.

Hardware Platforms - OS Releases:
        s700: 10.20
        s800: 10.20

Products: N/A

Filesets:
        Networking.NETTL-RUN Networking.NETTL-MIN

Automatic Reboot?: No

Status: General Superseded

Critical: No

Path Name:  /hp-ux_patches/s700_800/10.X/PHNE_8164

Symptoms:
        PHNE_8164:
        The user will see a core-dump when the SNMP sub-
        system is formatted using netfmt(1M). The type
        of formatting used is "nice" formatting.

        The ntl_write() function had an effect
        of unblocking the blocked SIGCHLD signal.

Defect Description:
        PHNE_8164:
        The core dump is seen when the user is uses the
        /usr/sbin/netfmt to format tracing and logging
        binary files beloging to the SNMP sub-system.

        The signal interfaces used in the nettl_write()
        was sigsetmask(), this is a non-standard
        interface. Whereas in the application,
        standard signal interface routines like
        sigaction(), sigprocmask(), are being used.
        This caused nettl_write() to unblock the
        previously blocked SIGCHLD signal.

SR:
        4701326827

Patch Files:
        /usr/lib/libnsfmt.1
        /usr/lib/libntl.1

what(1) Output:
        /usr/lib/libnsfmt.1:
                snmp_fmt.c $Revision: 1.2.116.2 $ $Date: 08/01/96 $
                        PHNE_8164
        /usr/lib/libntl.1:
                ntl_write.c $Revision: 1.6.116.2 $ $Date: 96/08/03 $
                         PHNE_8164

cksum(1) Output:
        2113074047 348160 /usr/lib/libnsfmt.1
        1898787475 24576 /usr/lib/libntl.1

Patch Conflicts: None

Patch Dependencies:  None

Hardware Dependencies:  None

Other Dependencies:  None

Supersedes:  None

Equivalent Patches: None

Patch Package Size:  420 Kbytes

Installation Instructions:
        Please review all instructions and the Hewlett-Packard
        SupportLine User Guide or your Hewlett-Packard support terms
        and conditions for precautions, scope of license,
        restrictions, and, limitation of liability and warranties,
        before installing this patch.
        ------------------------------------------------------------
        1. Back up your system before installing a patch.

        2. Login as root.

        3. Copy the patch to the /tmp directory.

        4. Move to the /tmp directory and unshar the patch:

                cd /tmp
                sh PHNE_8164

        5a. For a standalone system, run swinstall to install the
            patch:

                swinstall -x autoreboot=true -x match_target=true \
                        -s /tmp/PHNE_8164.depot

        5b. For a homogeneous NFS Diskless cluster run swcluster on the
            server to install the patch on the server and the clients:

                swcluster -i -b

            This will invoke swcluster in the interactive mode and
            force all clients to be shut down.

            WARNING: All cluster clients must be shut down prior to the
                     patch installation.  Installing the patch while the
                     clients are booted is unsupported and can lead to
                     serious problems.

            The swcluster command will invoke an swinstall session in which
            you must specify:

                alternate root path  -  default is /export/shared_root/OS_700
                source depot path    -  /tmp/PHNE_8164.depot

            To complete the installation, select the patch by choosing
            "Actions -> Match What Target Has" and then "Actions -> Install"
            from the Menubar.

        5c. For a heterogeneous NFS Diskless cluster:

                - run swinstall on the server as in step 5a to install
                  the patch on the cluster server.

                - run swcluster on the server as in step 5b to install
                  the patch on the cluster clients.

        By default swinstall will archive the original software in
        /var/adm/sw/patch/PHNE_8164.  If you do not wish to retain a
        copy of the original software, you can create an empty file
        named /var/adm/sw/patch/PATCH_NOSAVE.

        Warning: If this file exists when a patch is installed, the
                 patch cannot be deinstalled.  Please be careful
                 when using this feature.

        It is recommended that you move the PHNE_8164.text file to
        /var/adm/sw/patch for future reference.

        To put this patch on a magnetic tape and install from the
        tape drive, use the command:

                dd if=/tmp/PHNE_8164.depot of=/dev/rmt/0m bs=2k

Special Installation Instructions:
        Before the patch is installed, NetTL should be stopped.
        This can be done by issuing the following command -
        /usr/sbin/nettl -sp