mirror of
https://github.com/facebook/sapling.git
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5bcef1853c
First, the logic around the if..elif..elif was subtly wrong and sub-optimal because all branches would be tested as long as the revlog was valid. This patch changes things so it behaves like a switch statement over the revlog version. While I was here, I also tweaked error strings to make them consistent and to read better.
48 lines
1.3 KiB
Perl
48 lines
1.3 KiB
Perl
$ hg init empty-repo
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$ cd empty-repo
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Flags on revlog version 0 are rejected
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>>> with open('.hg/store/00changelog.i', 'wb') as fh:
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... fh.write('\x00\x01\x00\x00')
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$ hg log
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abort: unknown flags (0x01) in version 0 revlog 00changelog.i!
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[255]
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Unknown flags on revlog version 1 are rejected
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>>> with open('.hg/store/00changelog.i', 'wb') as fh:
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... fh.write('\x00\x04\x00\x01')
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$ hg log
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abort: unknown flags (0x04) in version 1 revlog 00changelog.i!
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[255]
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Unknown version is rejected
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>>> with open('.hg/store/00changelog.i', 'wb') as fh:
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... fh.write('\x00\x00\x00\x02')
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$ hg log
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abort: unknown version (2) in revlog 00changelog.i!
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[255]
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$ cd ..
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Test for CVE-2016-3630
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$ hg init
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>>> open("a.i", "w").write(
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... """eJxjYGZgZIAAYQYGxhgom+k/FMx8YKx9ZUaKSOyqo4cnuKb8mbqHV5cBCVTMWb1Cwqkhe4Gsg9AD
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... Joa3dYtcYYYBAQ8Qr4OqZAYRICPTSr5WKd/42rV36d+8/VmrNpv7NP1jQAXrQE4BqQUARngwVA=="""
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... .decode("base64").decode("zlib"))
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$ hg debugindex a.i
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rev offset length delta linkrev nodeid p1 p2
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0 0 19 -1 2 99e0332bd498 000000000000 000000000000
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1 19 12 0 3 6674f57a23d8 99e0332bd498 000000000000
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$ hg debugdata a.i 1 2>&1 | egrep 'Error:.*decoded'
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(mercurial\.\w+\.mpatch\.)?mpatchError: patch cannot be decoded (re)
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