DOSCVT is a small program to convert text files back and forth between
UNIX(tm) and DOS formats with the following command syntax:

  usage: doscvt [-u | -d ] [-v] [-z] [ <filename> ]
            -u   :  convert <filename> to unix format
            -d   :  convert <filename> to DOS format
            -v   :  display the program version and exit
            -z   :  append a CTRL-Z to the converted file

It defaults to -d on dos systems and -u on unix systems.

DOSCVT, in unix mode, converts <CR><LF> pairs to just <LF> and removes
any trailing ^Z EOF marker.  It looks for <CR><LF> pairs rather than
merely removing <CR> characters to avoid corrupting files that use
<CR> to do character overstrike (such as BOLD).  DOSCVT also converts
Unix format to MS-DOS format by adding <CR> before <LF> and,
optionally, adding ^Z at the end.

When converting files, DOSCVT converts the specified file into a temp
file and, when finished, deletes the original file and renames the
temp to the original file name.  If there was an error writing the
temp file, the conversion is aborted, and the input file is left
intact.

The accessed and modified times of the original are preserved.

Multiple filenames may be specified and each will be converted
in turn.  If no filename is specified, stdin will be converted
and written to stdout.

DOSCVT is designed so that the same C source file can be compiled
to run on wither DOS or UNIX systems.  I have compiled it with
Microsoft C V5.1 and MODCOMP GLS C B.2.  I tried to stay with the
ANSI spec but timestamps fell outside of this standard.  They do,
however, seem to work the same on DOS and UNIX systems.

History:
	2.0	First public release

	2.1	Removed debugging printf of tempfile name

	2.2	Changed file opens to "binary" mode.  This
		gave the program control over what went into
		the file.

	2.3	Added code to change the mode of STDIN and STDOUT
		to O_BINARY, allowing DOSCVT to work as a filter
		in a pipeline under MSDOS.

	2.4	Use a fixed tempfile name under MSDOS since the
		"tempnam" function seems to ignore the directory
		hint given in the first parameter if the environment
		variable TMP is set and returns a filename including
		the path specified in TMP.  If TMP pointed at another
		device, the rename operation failed.
		Thanks to Peter Herweijer for noticing this.


DOSCVT is freeware.  You may do what you like with DOSCVT except
remove my name from it.

I do NOT warrant DOSCVT to be suitable for any purpose at all,
particularly your purpose.

UNIX is a trademark of AT&T.

DOSCVT is brought to you by:

	Norm Brake
	Modular Computer Systems, Inc.
	  internet:   norm@modcomp.com
	  snailmail:  PO Box 6099
                      Ft Lauderdale, FL 33340-6099