Thomas Rast wrote:
> Jonathan Nieder wrote:
> > +test_expect_success PIPE 'R: copy using cat-file' '
> [...]
> > + dd if=/dev/stdin of=blob bs=$size count=1 <&3 &&
>
> This breaks my automated tester, though I am not sure exactly why. It
> runs RHEL5, and I have
>
> lrwxrwxrwx 1 root root 15 Sep 1 09:25 /dev/stdin -> /proc/self/fd/0
Ah, answering my own question: on my normal box, strace'ing dd[1] in
such an invocation uses
open("/dev/stdin", O_RDONLY) = 3
dup2(3, 0) = 0
close(3) = 0
OTOH on RHEL5[2] it tries a different order:
close(0) = 0
open("/dev/stdin", O_RDONLY) = -1 ENOENT (No such file or directory)
Oops.
[1] dd --version says: dd (coreutils) 7.1
[2] dd (coreutils) 5.97
--
Thomas Rast
trast@{inf,student}.ethz.ch
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