/dev/fd/N not synonymous with file descriptor N; it is on Linux

[Corinna Vinschen]

On Jan 22 09:57, Houder wrote:
> On 2019-01-22 09:50, Houder wrote:
> > On Sun, 6 Jan 2019 21:19:50, Corinna Vinschen  wrote:
> > > This should work in the latest developer snapshot uploaded to
> > > https://cygwin.com/snapshots/  Please give it a try.
> > So, for the record only:
> 
> and as another example, this STC succeeds on Linux ..., but fails on Cygwin.
> 
> 64-@@ ./stca /dev/fd/0 <<EOF
> > bla
> > EOF
> fd1 = 0
> argv[1] = /dev/fd/0
> fd2 = 3
> id = writefd2, errno = 13, errstr = Permission denied
> 64-@@

Not sure what you're testing.  This is the result for me on both,
Windows 8.1 and Windows 10 1809:

)$ ./stca /dev/fd/0 <<EOF
? bla
? EOF
fd1 = 0
argv[1] = /dev/fd/0
fd2 = 3
buf = \
Hello, world!


Corinna

-- 
Corinna Vinschen
Cygwin Maintainer
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