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From 9f393ee10ae198063bbe3b71c2c87262e7880a34 Mon Sep 17 00:00:00 2001
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From: Stephan Bergmann <sbergman@redhat.com>
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Date: Wed, 23 Sep 2020 11:53:11 +0200
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Subject: [PATCH] Read MOSDocumentLockFile UTF-16 string data with same
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endianness
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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...as MSODocumentLockFile::WriteEntryToStream has written it to (i.e.,
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always as UTF-16LE, assuming that is actually the right format to use). The
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discrepancy between writing and reading the string data appears to be present
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ever since the code's introduction in 5db1e20b8b0942dac2d50f3cd34532bb61147020
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"Introduce new lockfile handler for MSO like lockfiles".
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This caused CppunitTest_svl_lockfiles to fail on (big-endian) s390x Linux with
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> svl/qa/unit/lockfiles/test_lockfiles.cxx:578:(anonymous namespace)::LockfileTest::testWordLockFileRT
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> equality assertion failed
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> - Expected: LockFile Test
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> - Actual : 䰀漀挀欀䘀椀氀攀 吀攀猀琀
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etc.
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Change-Id: I97267aa14a3a926e7fd7bb1d2ce7d2de05d52a64
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Reviewed-on: https://gerrit.libreoffice.org/c/core/+/103238
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Tested-by: Jenkins
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Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
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(cherry picked from commit 1b9fa11a0869246fe0433b79aab30dd216cf92b6)
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---
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svl/source/misc/msodocumentlockfile.cxx | 12 ++++++++++--
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1 file changed, 10 insertions(+), 2 deletions(-)
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diff --git a/svl/source/misc/msodocumentlockfile.cxx b/svl/source/misc/msodocumentlockfile.cxx
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index 9650db03999f..0c857ffb53ec 100644
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--- a/svl/source/misc/msodocumentlockfile.cxx
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+++ b/svl/source/misc/msodocumentlockfile.cxx
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@@ -228,8 +228,16 @@ LockFileEntry MSODocumentLockFile::GetLockData()
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nUTF16Len = *++pBuf; // use Excel/PowerPoint position
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if (nUTF16Len > 0 && nUTF16Len <= 52) // skip wrong format
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- aResult[LockFileComponent::OOOUSERNAME]
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- = OUString(reinterpret_cast<const sal_Unicode*>(pBuf + 2), nUTF16Len);
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+ {
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+ OUStringBuffer str(nUTF16Len);
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+ sal_uInt8 const* p = reinterpret_cast<sal_uInt8 const*>(pBuf + 2);
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+ for (int i = 0; i != nUTF16Len; ++i)
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+ {
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+ str.append(sal_Unicode(p[0] | (sal_uInt32(p[1]) << 8)));
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+ p += 2;
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+ }
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+ aResult[LockFileComponent::OOOUSERNAME] = str.makeStringAndClear();
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+ }
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}
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}
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return aResult;
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--
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2.33.1
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