[GRASSLIST:5190] Re: newbie question

Eric G. Miller egm2 at jps.net
Sun Dec 8 23:47:07 EST 2002

On Mon, Dec 09, 2002 at 04:13:28AM +0000, Glynn Clements wrote:
> Eric G. Miller wrote:
> > > If the filesystem was mounted in "text" mode, Cygwin will attempt to
> > > perform LF/CRLF translation, which will corrupt the files; in this
> > > case, you would need to start again, as any files which had been
> > > generated would already be corrupt.
> > 
> > Hmm, does Cygwin open all files opened via open() in binary mode?  I
> > should think so.
> Unfortunately, no. The file is opened in binary mode if you use the
> (Cygwin specific) O_BINARY flag in the call to open(), or if the file
> resides on a "filesystem" which was mounted in binary mode, or if
> $CYGWIN contains "binmode". Otherwise, it is opened in text mode.

Oh, I see.  I guess the Cygwin folks must've had a good reason for this
decision.  I'm not inclined to add O_BINARY hacks just for cygwin,
though I think some of the magic numbers in open.c could be replaced
by their appropriate symbolic constants O_RDONLY, O_WRONLY and O_RDWR;
even if they are 0, 1, and 2 everywhere...

"...the plural of anecdote is [not?] data."  - attrib. to George Stigler

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