* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
-
#ifndef TYPES_H
#define TYPES_H
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
#ifndef u8
typedef unsigned char u8;
#endif
typedef unsigned int u32;
#endif
+#ifndef u64
+typedef unsigned long long u64;
+#endif
+
+
+
+/* DANGER!!!! here be dragons! Note that the pointer in
+ * memory might be unaligned. On some CPU's, i.e. ARM7,
+ * the 2 lsb are ignored for 32 bit access, on others
+ * it will cause an exception and on e.g. x86, it works
+ * the same as if aligned.
+ */
+#define le_to_h_u32(x) ((u32)((x)[0] | (x)[1] << 8 | (x)[2] << 16 | (x)[3] << 24))
+#define le_to_h_u16(x) ((u16)((x)[0] | (x)[1] << 8))
+#define be_to_h_u32(x) ((u32)((x)[3] | (x)[2] << 8 | (x)[1] << 16 | (x)[0] << 24))
+#define be_to_h_u16(x) ((u16)((x)[1] | (x)[0] << 8))
+
+#define h_u32_to_le(buf, val) do {\
+(buf)[3] = ((val) & 0xff000000) >> 24;\
+(buf)[2] = ((val) & 0x00ff0000) >> 16;\
+(buf)[1] = ((val) & 0x0000ff00) >> 8;\
+(buf)[0] = ((val) & 0x000000ff);\
+} while (0)
+#define h_u32_to_be(buf, val) do {\
+(buf)[0] = ((val) & 0xff000000) >> 24;\
+(buf)[1] = ((val) & 0x00ff0000) >> 16;\
+(buf)[2] = ((val) & 0x0000ff00) >> 8;\
+(buf)[3] = ((val) & 0x000000ff);\
+} while (0)
+
+#define h_u16_to_le(buf, val) do {\
+(buf)[1] = ((val) & 0xff00) >> 8;\
+(buf)[0] = ((val) & 0x00ff) >> 0;\
+} while (0)
+#define h_u16_to_be(buf, val) do {\
+(buf)[0] = ((val) & 0xff00) >> 8;\
+(buf)[1] = ((val) & 0x00ff) >> 0;\
+} while (0)
+
+
#endif /* TYPES_H */