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-rw-r--r--libinstaller/syslxint.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/libinstaller/syslxint.h b/libinstaller/syslxint.h
index 3cecf3c0..39098def 100644
--- a/libinstaller/syslxint.h
+++ b/libinstaller/syslxint.h
@@ -138,5 +138,7 @@ struct boot_sector {
#define bsHead bsJump
#define bsHeadLen offsetof(struct boot_sector, bsJump)
#define bsCode bs32.Code /* The common safe choice */
+#define bsCodeLen (offsetof(struct boot_sector, bsSignature) - \
+ offsetof(struct boot_sector, bsCode))
#endif /* SYSLXINT_H */