# HG changeset patch
# User Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
# Date 1661876573 -7200
# Node ID cae5f15ca5edbff38a0030a1d26a89ca27652963
# Parent  dbe2ddca4a8b71e31a7d54a3c769ea446ec2577a
formats: Fix possible panic in PBG3 checksum check

diff -r dbe2ddca4a8b -r cae5f15ca5ed formats/src/th06/pbg3.rs
--- a/formats/src/th06/pbg3.rs	Tue Aug 30 17:09:04 2022 +0200
+++ b/formats/src/th06/pbg3.rs	Tue Aug 30 18:22:53 2022 +0200
@@ -145,8 +145,7 @@
             self.bitstream.seek(io::SeekFrom::Start(*offset as u64))?;
             let mut value: u32 = 0;
             for c in self.bitstream.read_bytes(compressed_size as usize)? {
-                value += c as u32;
-                value &= 0xffffffff;
+                value = value.wrapping_add(c as u32);
             }
             if value != *checksum {
                 return Err(io::Error::new(io::ErrorKind::Other, "Corrupted data!"));