1 files changed, 41 insertions, 0 deletions
diff --git a/src/zap_inode.c b/src/zap_inode.c
new file mode 100644
index 0000000..f40a16b
--- /dev/null
+++ b/src/zap_inode.c
@@ -0,0 +1,41 @@
+#include "project.h"
+
+static int clear_blocks (ext2_filsys fs, blk_t *b_num,
+                         e2_blkcnt_t blockcnt,
+                         blk_t ref_block,
+                         int ref_offset,
+                         void *priv_data)
+{
+  ext2fs_block_alloc_stats2 (fs, *b_num, -1);
+
+  *b_num = 0;
+  return BLOCK_CHANGED;
+}
+
+
+
+
+int zap_inode (ext2_filsys fs, ext2_ino_t i_num, struct ext2_inode *i)
+{
+  int ret;
+
+  printf ("clearing already used inode %d\n", (int) i_num);
+
+  EXT2_MOAN_FAIL (ret, ext2fs_block_iterate2 (fs, i_num, BLOCK_FLAG_DEPTH_TRAVERSE, 0, clear_blocks, NULL));
+
+  if (ret) return -1;
+
+  if (i->i_mode & LINUX_S_IFDIR)
+    ext2fs_inode_alloc_stats2 (fs, i_num, -1, -1);
+  else
+    ext2fs_inode_alloc_stats2 (fs, i_num, -1, 0);
+
+  memset (i, 0, sizeof (*i));
+
+  EXT2_MOAN_FAIL (ret, ext2fs_write_inode (fs, i_num, i));
+
+  return ret;
+}
+
+
+