Summary: | endianness issue in application/x-java-keystore magic | ||
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Product: | shared-mime-info | Reporter: | David Faure <faure> |
Component: | freedesktop.org.xml | Assignee: | Shared Mime Info group <shared_mime_info> |
Status: | RESOLVED FIXED | QA Contact: | |
Severity: | normal | ||
Priority: | medium | CC: | bugzilla |
Version: | unspecified | ||
Hardware: | Other | ||
OS: | All | ||
Whiteboard: | |||
i915 platform: | i915 features: | ||
Attachments: |
freedesktop.org.xml.in.diff
git-formatted patch 0001-Fix-magic-for-application-x-java-keystore-to-say-big.patch |
Description
David Faure
2017-01-09 08:42:48 UTC
We require git-formatted patches. (In reply to David Faure from comment #0) > Created attachment 128821 [details] [review] [review] > freedesktop.org.xml.in.diff <snip> > And the test file test.jks starts with 0xFE, 0xED, 0xFE, 0xED. > On a little-endian machine this leads to a value of 0xedfeedfe when read as > a single 32-bit value. You could show instead of telling, by showing the output of "hexdump" > http://mindprod.com/jgloss/cacerts.html says "The first four signature bytes > of a Sun cacerts file in hex are FEEDFEED." so I think this rule should say > big32 instead of host32. With big32, both the s-m-i testsuite and my > implementation (which uses the same testsuite) pass. This isn't a canonical page for Sun cacerts. Going to the front page of the site makes that clear. Created attachment 128825 [details] [review] git-formatted patch git-formatted: heh, yeah, catch 22, I needed the bugzilla URL to put into the commit log ;-) Attaching new patch now. `hexdump ./tests/test.jks` uses a word size of 32 bits, leading to confusing output. But hexdump -C is clear: hexdump -C ./tests/test.jks 00000000 fe ed fe ed 00 00 00 02 00 00 00 00 57 be bc 27 |............W..'| I know the URL I found isn't "official", but I didn't find anything else on the topic. Tell me if you find better ;-) The point is that it confirms what we actually have in test.jks, whereever that came from (unless the website is wrong/unclear AND the test file came from a big endian machine, of course...). (In reply to David Faure from comment #2) > Created attachment 128825 [details] [review] [review] > git-formatted patch Can you please add the explanation from comment 0, with the fixes mentioned in comment 2 to the commit log? (In reply to David Faure from comment #3) > git-formatted: heh, yeah, catch 22, I needed the bugzilla URL to put into > the commit log ;-) git bz file ... :) (In reply to David Faure from comment #3) > I know the URL I found isn't "official", but I didn't find anything else on > the topic. Tell me if you find better ;-) > The point is that it confirms what we actually have in test.jks, whereever > that came from (unless the website is wrong/unclear AND the test file came > from a big endian machine, of course...). I found this is the magic file: 0 belong 0xfeedfeed Java KeyStore which is a better reference than the URL you gave. No idea what "git bz" is, must be some additional script ;) Thanks for the idea of looking into 'magic' from file(1), good to see that it confirms my suspicion. Attaching new patch. Created attachment 128827 [details] [review] 0001-Fix-magic-for-application-x-java-keystore-to-say-big.patch Committed with some changes to the commit message. |
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