Add unaligned access helpers for be32

diff --git a/include/wimlib/unaligned.h b/include/wimlib/unaligned.h
index 7db293dacc8bb8aa18d714527b545729e8c40ff6..5c6aa33b75da3aa6d7601841e12eea17385fe878 100644 (file)
--- a/include/wimlib/unaligned.h
+++ b/include/wimlib/unaligned.h
@@ -83,6 +83,16 @@ get_unaligned_le32(const u8 *p)
                        ((u32)p[1] << 8) | p[0];
 }
 
+static forceinline u32
+get_unaligned_be32(const u8 *p)
+{
+       if (UNALIGNED_ACCESS_IS_FAST)
+               return be32_to_cpu(load_be32_unaligned(p));
+       else
+               return ((u32)p[0] << 24) | ((u32)p[1] << 16) |
+                       ((u32)p[2] << 8) | p[3];
+}
+
 static forceinline void
 put_unaligned_le16(u16 v, u8 *p)
 {
@@ -107,4 +117,17 @@ put_unaligned_le32(u32 v, u8 *p)
        }
 }
 
+static forceinline void
+put_unaligned_be32(u32 v, u8 *p)
+{
+       if (UNALIGNED_ACCESS_IS_FAST) {
+               store_be32_unaligned(cpu_to_be32(v), p);
+       } else {
+               p[0] = (u8)(v >> 24);
+               p[1] = (u8)(v >> 16);
+               p[2] = (u8)(v >> 8);
+               p[3] = (u8)(v >> 0);
+       }
+}
+
 #endif /* _WIMLIB_UNALIGNED_H */