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oldlinux-files/docs/interrupts/int-html/rb-3014.htm
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<HEAD>
<TITLE>Int 21/AH=5Ah
</TITLE>
<META NAME="Description" CONTENT="
Int 21/AH=5Ah - DOS 3.0+ - CREATE TEMPORARY FILE -
AH = 5Ah
CX = file attribute (see #01420 at AX=4301h)
DS:DX - ASCIZ path ending with a '\' + 13 zero bytes to receive the
generated filename
Return: CF clear if successful
AX = file handle opened for read/write in compatibility mode
DS:DX pathname extended with generated name for temporary file
CF set on error
AX = error code (03h,04h,05h) (see #01680)
Desc: creates a file with a unique name which must be explicitly deleted
">
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<h2>Int 21/AH=5Ah
</h2>
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<h3><font color=#C00040>DOS 3.0+ - CREATE TEMPORARY FILE</font></h3>
<PRE>
AH = 5Ah
CX = file attribute <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 #01420 at AX=4301h)
DS:DX -> ASCIZ path ending with a '\' + 13 zero bytes to receive the
generated filename<br>
<p><b>Return:</b><br>CF clear if successful
AX = file handle opened for read/write in compatibility mode
DS:DX pathname extended with generated name for temporary file
CF set on error
AX = error code (03h,04h,05h) <a href="rb-3012.htm#Table1680" tppabs="http://www.ctyme.com/intr/rb-3012.htm#Table1680">(see #01680)</a>
</PRE>
<p><b>Desc:</b>
Creates a file with a unique name which must be explicitly deleted
<p><b>Notes:</b>
Under the FlashTek X-32 DOS extender, the path pointer is in DS:EDX.
MS-DOS 3.0-4.0 and DR DOS 3.4-5.0 generate the filename as a sequence
of hex digits based on the current date and time; MS-DOS 6+,
DR DOS 6, and Novell DOS 7 use letters A-P in place of hex digits.
MS-DOS 5.0 and DR DOS 3.41/5.0 will insert a missing trailing backslash
before appending the generated filename, but due to this, an empty
string results in a file in the root directory
<p><b>BUGS:</b>
COMPAQ DOS 3.31 hangs if the pathname is at XXXXh:0000h; it apparently
wraps around to the end of the segment.
MS-DOS 5.00 revisions A and B and PC-DOS 5.00 revision A reportedly
hang the system if the specified path is the root directory and the
root directory is full (no free directory entries).
Mark Incley <mincley@krisalis.demon.co.uk> reports that this function
hangs in MS-DOS 6.2x if the name includes two consecutive path
separators (e.g. C:\\ )
<p><b>See Also:</b>
<a href="rb-2778.htm" tppabs="http://www.ctyme.com/intr/rb-2778.htm">AH=3Ch</a> - <a href="rb-3015.htm" tppabs="http://www.ctyme.com/intr/rb-3015.htm">AH=5Bh</a>
<p>
<b>Category: <a href="cat-010.htm" tppabs="http://www.ctyme.com/intr/cat-010.htm">
DOS Kernel</a>
- <a href="int-21.htm" tppabs="http://www.ctyme.com/intr/int-21.htm">
Int 21h</a>
- <a href="alpha-d.htm" tppabs="http://www.ctyme.com/intr/alpha-d.htm">
D</a>
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