URL:
<http://savannah.gnu.org/bugs/?24873>
Summary: Duplicate fprint option corrupts output
Project: findutils
Submitted by: federicomena
Submitted on: Tue 18 Nov 2008 06:22:27 PM GMT
Category: find
Severity: 3 - Normal
Item Group: Wrong result
Status: None
Privacy: Public
Assigned to: None
Originator Name:
Originator Email:
Open/Closed: Open
Discussion Lock: Any
Release: 4.5.2
Fixed Release: None
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Details:
Say you have a command line like this:
find dirname -type f \( -name '*.foo' -fprint /tmp/out1 \
-o -name '*.bar' -fprint /tmp/out1 \) \
-o -name '*.baz' -fprint /tmp/out2
What happens then is that /tmp/out1 gets opened twice on different file
descriptors. As the search results for each get written to each FD, the
file's contents get overwritten at random times (depending on when stdio
flushes its buffers for each FD).
The fprint action should detect duplicate filenames (or device/inode pairs
for the opened files?) and just write to the file in order.
I caught this in Debian's apt-move script, by the way ("how did this ever
work!?") :)
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