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Re: Possible dd bug - no close of "if=/of=" fds
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From: |
Paul Eggert |
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Subject: |
Re: Possible dd bug - no close of "if=/of=" fds |
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Date: |
Wed, 07 Dec 2005 09:25:02 -0800 |
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User-agent: |
Gnus/5.1007 (Gnus v5.10.7) Emacs/21.4 (gnu/linux) |
"HARDY, Steven" <address@hidden> writes:
> I was expecting dd to explicitly close the if=/of= file descriptors
It should do that. dd.c's main program invokes "atexit (close_stdout);",
and this should invoke close_stdout (which reports an error) if the close
fails.
What is the output of the following command, around the point of the
close?
strace dd if=myfirmware.bin of=/dev/mydevice
Can you start a debugger and put a breakpoint on close_stdout and see
what happens?