This patch contains changes to header files contained in the optionally loaded 
OSFINCLUDE410 subset. The following problems were corrected in the header 
files:

PROBLEM:  (SSRT0296U)	(Patch ID: OSF410-400189)
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A potential security vulnerability has been discovered in BIND, where under 
certain circumstances, system integrity may be compromised. This may be in the 
form of improper file or privilege management.  DIGITAL has corrected this 
potential vulnerability.

PROBLEM:  (QAR 45580)	(Patch ID: OSF410-400239-1)
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Multithreaded applications that call the pthread_mutex_destroy routine may fail
when there are no threads referencing the mutex.  This is caused by a race
condition inside the pthread_mutex_unlock code.  The typical symptom will be
a return value of EBUSY from pthread_mutex_destroy.

			     *** NOTE ***
Applications using "inline" mutex operations, as described in the pthread.h
header file, will need to RECOMPILE with the application of this patch.
The instruction sequences for the pthread_mutex_unlock routine have changed.

Please refer to the existing note in pthread.h entitled "NOTICED: inline
function performance vs. binary compatibility" for more information.

PROBLEM:  (QAR 52332)	(Patch ID: OSF410-400239-1)
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Over time, a multithreaded application may find that asynchronous signals
are not being delivered to it.  The asynchronous signal may have originated
outside the application or from within it. The effect will be that the signal
is pending against a thread, the thread will NOT have the signal blocked,
but it will not be delivered to that thread.

PROBLEM:  (Patch ID: OSF410-400331)
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When the /etc/passwd file is very large, a performance degradation may occur.

When the number of passwd entries reaches up into the 30,000 to 80,000 range
or greater, mkpasswd will sometimes fail to create a hashed (ndbm) database.
Since the purpose of this database is to allow for efficient (fast) searches
for passwd file information, failure to build it causes commands that rely
on it to do a linear search of /etc/passwd.  This results in a serious per-
formance degradation for those commands.

For customers choosing to use the mkpasswd -s option to avoid this type of
failure, a potential database/binary compatibility problem may arise.  If a
customer application that accesses the password database created by mkpasswd
is built statically (non-shared), that application will be unable to read
from or write to the password database correctly.  This would cause the
customer application to fail either by generating incorrect results or by
possibly dumping core.  Any statically linked application would be affected
if it directly or indirectly calls any of the libc ndbm routines documented
in the ndbm(3) man page and then accesses the password database.  To remedy
this situation, the customer would need to re-link the application.

Customers who do not use the mkpasswd -s option will not see this database/
binary compatibility problem.

PROBLEM:  (MCPM31P0Q/QAR 60741)    (Patch ID: OSF410-405440)
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This patch is a fix to libtli/libxti to correctly handle a continuation data
message still on the stream head.

PROBLEM:  (SSRT0546U, SSRT0542U)    (Patch ID: OSF410-405403)
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A potential security vulnerability has been discovered, where under certain
circumstances, system integrity may be compromised. This may be in the form of
improper file or privilege management. Digital has corrected this potential
vulnerability.

In addressing this issue, a warning message not previously seen may be
placed in the daemon.log by named.  An example of the message follows:

  Jan  7 14:03:25 hostname named[316]: owner name "xx_yy.zz.com"
  IN (secondary) is invalid - proceeding anyway

This message has no impact on system operation and will only be seen
once for any given node name on a BIND server at startup.  It is
informing the user that this node name contains non-standard
characters.  Standard characters are defined as A-Z, a-z, 0-9 and
hyphen.  Non-standard characters are characters that fall out of the
standard set such as underscores.