Larry Hall (Cygwin) wrote:
dazjorz wrote:
Hey all,
I'm not very great with the inner workings of GNU or Cygwin libc, so
please bear with me if I make any mistakes or misunderstandings.
I was trying to get GNU coreutils to work on Cygwin. Maybe this seems
weird to you guys, because Cygwin has coreutils, but there are a few
reasons:
- Cygwin didn't have md5sum, GNU coreutils did (and I need md5sum)
<http://cygwin.com/cgi-bin2/package-grep.cgi?grep=bin%2Fmd5sum>
Did you miss this?
Hmm. I guess. Oh well, I didn't have md5sum before, I think :/
- It should work, and "Because I Can" is always a valid reason in UNIX
world
- I'm trying to bootstrap Debian on Cygwin, and coreutils from Debian
is my first try; getting coreutils from Cygwin may be done later.
However, I noticed there are some very weird bugs happening. See for
example, this bug in cat (don't look at the title of the page, I
blamed bash first)
http://paster.dazjorz.com/?p=3845
Your example works fine for me with the latest coreutils. Perhaps you're
working with a buggy locally built version?
Did you try with Cygwin coreutils or GNU coreutils? :)
By the way, list, I've been looking for some other things. This problem
is caused by:
- cat calling freopen to make the handle binary (shouldn't it be binary
in the first place? shouldn't it check if it's already opened in binary
mode?)
- freopen() not checking if O_APPEND is set, etc. (is it possible to
check this?)
I'll write a test case for freopen(), that shows O_APPEND is being
missed, causing this bug.
Sjors
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