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fix std.os.renameatW

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Ask for DELETE access when opening the source file.

Additionally, when the source and dest dir are the same, pass null
for RootDirectory.
This commit is contained in:
Andrew Kelley 2020-03-15 15:47:42 -04:00
parent 6c2b23593b
commit e369789062
1 changed files with 2 additions and 2 deletions
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4
lib/std/os.zig
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@ -1650,7 +1650,7 @@ pub fn renameatW(
new_path_w: [*:0]const u16,
ReplaceIfExists: windows.BOOLEAN,
) RenameError!void {
const access_mask = windows.SYNCHRONIZE | windows.GENERIC_WRITE;
const access_mask = windows.SYNCHRONIZE | windows.GENERIC_WRITE | windows.DELETE;
const src_fd = try windows.OpenFileW(old_dir_fd, old_path, null, access_mask, windows.FILE_OPEN);
defer windows.CloseHandle(src_fd);
@ -1664,7 +1664,7 @@ pub fn renameatW(
rename_info.* = .{
.ReplaceIfExists = ReplaceIfExists,
.RootDirectory = if (std.fs.path.isAbsoluteWindowsW(new_path_w)) null else new_dir_fd,
.RootDirectory = if (old_dir_fd == new_dir_fd or std.fs.path.isAbsoluteWindowsW(new_path_w)) null else new_dir_fd,
.FileNameLength = @intCast(u32, new_path.len * 2), // already checked error.NameTooLong
.FileName = undefined,
};