add header command

1 files changed, 3 insertions, 18 deletions

diff --git a/convert/convert.ha b/convert/convert.ha
index 7ba6bf0..5404bd8 100644
--- a/convert/convert.ha
+++ b/convert/convert.ha
@@ -12,8 +12,8 @@ use errors;
 use rt;
 
 
-export fn convert(args: []str) void = {
-	if (len(args) < 3) {
+export fn convert(vol: io::file, args: []str) void = {
+	if (len(args) < 2) {
 		fmt::fatalf("gptman.convert: needs disk");
 	};
 
@@ -22,28 +22,13 @@ export fn convert(args: []str) void = {
 
 	const source = mbr::from(source)!;
 
-	let freeno: size = 0z;
-	for (let i = 0z; i < 4; i += 1) {
-		const entry = &source.bootsector.entries[i];
-		
-		if (entry.lba_begin == 0 && entry.length == 0)
-			continue;
-
-		freeno += entry.length: size;
-	};
-
-	let file = os::create(args[2], fs::mode::USER_RWX | fs::mode::GROUP_RX | fs::mode::OTHER_RX, fs::flags::RDWR)!;
-	defer io::close(file)!;
-
-	let vol = gpt::create(file, freeno);
-	gpt::mkbackup(vol);
+	let vol = gpt::from(vol)!;
 	defer {
 		gpt::chksums(vol);
 		gpt::commit(vol)!;
 		gpt::finish(vol);
 	};
 	
-	rt::memcpy(vol.mbr, source.bootsector, size(mbr::bootsector));
 	for (let i = 0z; i < 4; i += 1) {
 		const entry = &source.bootsector.entries[i];
 		if (entry.lba_begin == 0 && entry.length == 0)