Now just for the memory leaks

src/directory.zig

@@ -48,13 +48,19 @@ pub fn readDirectory(alloc: std.mem.Allocator, rdr: io.AnyReader, size: u64) !st
     var out: std.StringHashMap(DirEntry) = .init(alloc);
     errdefer out.deinit();
     var red_size: u64 = 3;
-    var hdr: DirHeader = try rdr.readStruct(DirHeader);
-    while (red_size < size) : (hdr = try rdr.readStruct(DirHeader)) {
+    var hdr: DirHeader align(4) = undefined;
+    // rdr.readStruct reads 16 bytes, due to alignment. get around this by manually reading the memory and decoding
+    var hdr_tmp: [12]u8 = [_]u8{0} ** 12;
+    while (red_size < size) {
+        _ = try rdr.readAll(&hdr_tmp);
+        hdr = std.mem.bytesToValue(DirHeader, &hdr_tmp);
+        red_size += 12;
         var i: u32 = 0;
+        try out.ensureUnusedCapacity(hdr.count + 1);
         while (i <= hdr.count) : (i += 1) {
             var tmp: DirEntry = try .init(alloc, hdr, rdr);
             errdefer tmp.deinit(alloc);
-            try out.put(tmp.name, tmp);
+            out.putAssumeCapacity(tmp.name, tmp);
             red_size += 8 + tmp.name.len;
         }
     }

src/file.zig

@@ -38,12 +38,11 @@ pub const File = struct {
     }
 
     fn realOpen(self: *File, reader: *Reader, path: []const u8, first: bool) !File {
-        const clean_path: []const u8 = std.mem.trimLeft(u8, path, "/");
+        const clean_path: []const u8 = std.mem.trim(u8, path, "/");
         if (clean_path.len == 0) {
             return self.*;
         }
         if (!first) {
-            defer reader.alloc.free(path);
             defer self.deinit(reader.alloc);
         }
         switch (self.inode.header.inode_type) {
@@ -95,6 +94,7 @@ pub const File = struct {
             reader.super.decomp,
         );
         defer meta_rdr.deinit();
+        try meta_rdr.skip(offset);
         self.dirEntries = try directory.readDirectory(reader.alloc, meta_rdr.any(), size);
         self.hasEntries = true;
     }

src/reader.zig

@@ -61,5 +61,5 @@ test "reader" {
     var fil = try rdr.root.open(&rdr, test_file_path);
     defer fil.deinit(rdr.alloc);
 
-    std.debug.print("{}\n", .{fil});
+    std.debug.print("{s}\n", .{fil.name});
 }