169 lines
11 KiB
HTML
169 lines
11 KiB
HTML
<HTML>
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<HEAD>
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<TITLE>Int 21/AH=40h
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</TITLE>
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<META NAME="Description" CONTENT="
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Int 21/AH=40h - Trusted Access - NB.SYS - SET STATE -
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AH = 40h
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BX = handle for character device $$NB$$NB
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DS:DX - state record (see #01414)
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CX ignored
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Return: CF clear if successful
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AX = number of bytes actually written
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CF set on error
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AX = error code (05h,06h) (see #01680 at AH=59h/BX=0000h)
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Program: Trusted Access is a security and access-control package by Lassen
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Software, Inc.; NB.SYS is a device driver to prevent the user from
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">
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<META NAME="robots" CONTENT="none">
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</HEAD>
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<BODY BGCOLOR="#FFD0A0">
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<center>
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<h2>Int 21/AH=40h
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</h2>
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</center><p>
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<table border=1 cellpadding=3 cellspacing=1>
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<td>
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<a href="rb-2793.htm" tppabs="http://www.ctyme.com/intr/rb-2793.htm">
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<img src="lup.gif" tppabs="http://graphics.ctyme.com/gif/lup.gif" border=0 alt=Prev></a>
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<img src="lhome.gif" tppabs="http://graphics.ctyme.com/gif/lhome.gif" border=0 alt=Ralf Brown Page></a>
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<td><a href="int.htm" tppabs="http://www.ctyme.com/intr/int.htm">Interrups</a></td>
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<td><a href="cat.htm" tppabs="http://www.ctyme.com/intr/cat.htm">Categories</a></td>
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<td><a href="alpha.htm" tppabs="http://www.ctyme.com/intr/alpha.htm">Contents</a></td>
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</td></table><p>
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<p><img src="rbline.gif" tppabs="http://graphics.ctyme.com/gif/rbline.gif" width="100%" alt="------"><p>
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<h3><font color=#C00040>Trusted Access - NB.SYS - SET STATE</font></h3>
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<PRE>
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AH = 40h
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BX = handle for character device "$$NB$$NB"
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DS:DX -> state record <a href="rb-2788.htm#Table1414" tppabs="http://www.ctyme.com/intr/rb-2788.htm#Table1414">(see #01414)</a>
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CX ignored<br>
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<p><b>Return:</b><br>CF clear if successful
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AX = number of bytes actually written
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CF set on error
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AX = error code (05h,06h) <a href="javascript:if(confirm('http://www.ctyme.com/intr/rb-0000.htm \n\nThis file was not retrieved by Teleport Pro, because it was unavailable, or its retrieval was aborted, or the project was stopped too soon. \n\nDo you want to open it from the server?'))window.location='http://www.ctyme.com/intr/rb-0000.htm#Table0'" tppabs="http://www.ctyme.com/intr/rb-0000.htm#Table0"></a>(see #01680 at AH=59h/BX=0000h)
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</PRE>
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<p><b>Program:</b>
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Trusted Access is a security and access-control package by Lassen
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Software, Inc.; NB.SYS is a device driver to prevent the user from
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terminating CONFIG.SYS or AUTOEXEC.BAT with Ctrl-Break
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<p><b>See Also:</b>
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<a href="rb-2788.htm" tppabs="http://www.ctyme.com/intr/rb-2788.htm">AH=3Fh"NB.SYS"</a>
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<p>
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<b>Category: <a href="cat-037.htm" tppabs="http://www.ctyme.com/intr/cat-037.htm">
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Security</a>
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- <a href="int-21.htm" tppabs="http://www.ctyme.com/intr/int-21.htm">
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Int 21h</a>
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- <a href="alpha-t.htm" tppabs="http://www.ctyme.com/intr/alpha-t.htm">
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T</a>
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</b><p><p><img src="rbline.gif" tppabs="http://graphics.ctyme.com/gif/rbline.gif" width="100%" alt="------"><p>
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<img src="lup.gif" tppabs="http://graphics.ctyme.com/gif/lup.gif" border=0 alt=Prev></a>
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<img src="ldown.gif" tppabs="http://graphics.ctyme.com/gif/ldown.gif" border=0 alt=Next></a>
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<td><a href="int.htm" tppabs="http://www.ctyme.com/intr/int.htm">Interrups</a></td>
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<td><a href="cat.htm" tppabs="http://www.ctyme.com/intr/cat.htm">Categories</a></td>
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<td><a href="alpha.htm" tppabs="http://www.ctyme.com/intr/alpha.htm">Contents</a></td>
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</td></table><p>
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