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fileutils: open Copy() destination at the source's mode

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This commit is contained in:
dxbjavid
2026-05-25 13:08:43 +05:30
parent 56ed5c3f94
commit 1701edca5b
1 changed files with 13 additions and 4 deletions
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src/FileUtils.cpp
+13 -4
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@@ -256,7 +256,16 @@ bool CFile::Copy(const CString& sOldFileName, const CString& sNewFileName,
return false;
}
if (!NewFile.Open(O_WRONLY | O_CREAT | O_TRUNC)) {
// Stat the source up front so the new file is created with the
// same mode instead of appearing at the default 0644 for the
// duration of the copy.
struct stat st;
mode_t iMode = 0600;
if (GetInfo(sOldFileName, st) == 0) {
iMode = st.st_mode & 07777;
}
if (!NewFile.Open(O_WRONLY | O_CREAT | O_TRUNC, iMode)) {
return false;
}
@@ -280,9 +289,9 @@ bool CFile::Copy(const CString& sOldFileName, const CString& sNewFileName,
OldFile.Close();
NewFile.Close();
struct stat st;
GetInfo(sOldFileName, st);
Chmod(sNewFileName, st.st_mode);
// open(O_CREAT|O_TRUNC) doesn't update the mode of an existing
// file, so apply it here for the overwrite path.
Chmod(sNewFileName, iMode);
return true;
}