From 74b109b0a75ae6648f9381252d8beb5ce6025df3 Mon Sep 17 00:00:00 2001
From: Luke Shumaker <lukeshu@lukeshu.com>
Date: Sun, 5 Jun 2022 16:46:34 -0600
Subject: factor out a btrfsmisc pacage

---
 pkg/btrfs/fsck.go | 52 ----------------------------------------------------
 1 file changed, 52 deletions(-)
 delete mode 100644 pkg/btrfs/fsck.go

(limited to 'pkg/btrfs/fsck.go')

diff --git a/pkg/btrfs/fsck.go b/pkg/btrfs/fsck.go
deleted file mode 100644
index 33ccd44..0000000
--- a/pkg/btrfs/fsck.go
+++ /dev/null
@@ -1,52 +0,0 @@
-package btrfs
-
-import (
-	"fmt"
-
-	"lukeshu.com/btrfs-tools/pkg/binstruct"
-)
-
-// ScanForNodes mimics btrfs-progs
-// cmds/rescue-chunk-recover.c:scan_one_device(), except it doesn't do
-// anything but log when it finds a node.
-func ScanForNodes(dev *Device, sb Superblock) error {
-	devSize, err := dev.Size()
-	if err != nil {
-		return err
-	}
-
-	if sb.NodeSize < sb.SectorSize {
-		return fmt.Errorf("node_size(%d) < sector_size(%d)",
-			sb.NodeSize, sb.SectorSize)
-	}
-
-	nodeBuf := make([]byte, sb.NodeSize)
-	for pos := PhysicalAddr(0); pos+PhysicalAddr(sb.SectorSize) < devSize; pos += PhysicalAddr(sb.SectorSize) {
-		if inSlice(pos, superblockAddrs) {
-			fmt.Printf("sector@%d is a superblock\n", pos)
-			continue
-		}
-		if _, err := dev.ReadAt(nodeBuf, pos); err != nil {
-			return fmt.Errorf("sector@%d: %w", pos, err)
-		}
-		var nodeHeader NodeHeader
-		if _, err := binstruct.Unmarshal(nodeBuf, &nodeHeader); err != nil {
-			return fmt.Errorf("sector@%d: %w", pos, err)
-		}
-		if !nodeHeader.MetadataUUID.Equal(sb.EffectiveMetadataUUID()) {
-			//fmt.Printf("sector@%d does not look like a node\n", pos)
-			continue
-		}
-		if !nodeHeader.Checksum.Equal(CRC32c(nodeBuf[0x20:])) {
-			fmt.Printf("sector@%d looks like a node but is corrupt (checksum doesn't match)\n", pos)
-			continue
-		}
-
-		fmt.Printf("node@%d: physical_addr=0x%0X logical_addr=0x%0X generation=%d owner=%v level=%d\n",
-			pos, pos, nodeHeader.Addr, nodeHeader.Generation, nodeHeader.Owner, nodeHeader.Level)
-
-		pos += PhysicalAddr(sb.NodeSize) - PhysicalAddr(sb.SectorSize)
-	}
-
-	return nil
-}
-- 
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