[bugfix] Header length verification correction.

Addresses vasi/qcow2-fuse#4.
corwin-of-amber · Dec 3, 2021 · 60dcdaf · 60dcdaf
1 parent 2f668ac
commit 60dcdaf
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/header.rs b/src/header.rs
@@ -268,7 +268,7 @@ impl Header {
         if self.v3.refcount_order > 6 {
             return Err(Error::FileFormat(format!("bad refcount_order {}", self.v3.refcount_order)));
         }
-        if self.v3.header_length as u64 != actual_length {
+        if self.v3.header_length as u64 != io.position() {
             return Err(Error::FileFormat(format!("header is {} bytes, file claims {}",
                                                  io.position(),
                                                  self.v3.header_length)));