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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
commited5640d8b587fbcfed7dd7967f3de04b37a76f26 (patch)
tree7a5f7c6c9d02226d7471cb3cc8fbbf631b415303 /onlineupdate/source/service/servicebase.cxx
parentInitial commit. (diff)
downloadlibreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.tar.xz
libreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.zip
Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'onlineupdate/source/service/servicebase.cxx')
-rw-r--r--onlineupdate/source/service/servicebase.cxx97
1 files changed, 97 insertions, 0 deletions
diff --git a/onlineupdate/source/service/servicebase.cxx b/onlineupdate/source/service/servicebase.cxx
new file mode 100644
index 000000000..4fb632878
--- /dev/null
+++ b/onlineupdate/source/service/servicebase.cxx
@@ -0,0 +1,97 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "servicebase.hxx"
+#include "windowsHelper.hxx"
+
+// Shared code between applications and updater.exe
+
+/**
+ * Verifies if 2 files are byte for byte equivalent.
+ *
+ * @param file1Path The first file to verify.
+ * @param file2Path The second file to verify.
+ * @param sameContent Out parameter, TRUE if the files are equal
+ * @return TRUE If there was no error checking the files.
+ */
+BOOL
+VerifySameFiles(LPCWSTR file1Path, LPCWSTR file2Path, BOOL &sameContent)
+{
+ sameContent = FALSE;
+ AutoHandle file1(CreateFileW(file1Path, GENERIC_READ, FILE_SHARE_READ,
+ nullptr, OPEN_EXISTING, 0, nullptr));
+ if (file1 == INVALID_HANDLE_VALUE)
+ {
+ return FALSE;
+ }
+ AutoHandle file2(CreateFileW(file2Path, GENERIC_READ, FILE_SHARE_READ,
+ nullptr, OPEN_EXISTING, 0, nullptr));
+ if (file2 == INVALID_HANDLE_VALUE)
+ {
+ return FALSE;
+ }
+
+ DWORD fileSize1 = GetFileSize(file1.get(), nullptr);
+ DWORD fileSize2 = GetFileSize(file2.get(), nullptr);
+ if (INVALID_FILE_SIZE == fileSize1 || INVALID_FILE_SIZE == fileSize2)
+ {
+ return FALSE;
+ }
+
+ if (fileSize1 != fileSize2)
+ {
+ // sameContent is already set to FALSE
+ return TRUE;
+ }
+
+ char buf1[COMPARE_BLOCKSIZE];
+ char buf2[COMPARE_BLOCKSIZE];
+ DWORD numBlocks = fileSize1 / COMPARE_BLOCKSIZE;
+ DWORD leftOver = fileSize1 % COMPARE_BLOCKSIZE;
+ DWORD readAmount;
+ for (DWORD i = 0; i < numBlocks; i++)
+ {
+ if (!ReadFile(file1.get(), buf1, COMPARE_BLOCKSIZE, &readAmount, nullptr) ||
+ readAmount != COMPARE_BLOCKSIZE)
+ {
+ return FALSE;
+ }
+
+ if (!ReadFile(file2.get(), buf2, COMPARE_BLOCKSIZE, &readAmount, nullptr) ||
+ readAmount != COMPARE_BLOCKSIZE)
+ {
+ return FALSE;
+ }
+
+ if (memcmp(buf1, buf2, COMPARE_BLOCKSIZE))
+ {
+ // sameContent is already set to FALSE
+ return TRUE;
+ }
+ }
+
+ if (leftOver)
+ {
+ if (!ReadFile(file1.get(), buf1, leftOver, &readAmount, nullptr) ||
+ readAmount != leftOver)
+ {
+ return FALSE;
+ }
+
+ if (!ReadFile(file2.get(), buf2, leftOver, &readAmount, nullptr) ||
+ readAmount != leftOver)
+ {
+ return FALSE;
+ }
+
+ if (memcmp(buf1, buf2, leftOver))
+ {
+ // sameContent is already set to FALSE
+ return TRUE;
+ }
+ }
+
+ sameContent = TRUE;
+ return TRUE;
+}