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-rw-r--r--src/helper/types.h51
1 files changed, 50 insertions, 1 deletions
diff --git a/src/helper/types.h b/src/helper/types.h
index 6d49bbb0..90f49396 100644
--- a/src/helper/types.h
+++ b/src/helper/types.h
@@ -17,10 +17,11 @@
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
-
#ifndef TYPES_H
#define TYPES_H
+#include "config.h"
+
#ifndef u8
typedef unsigned char u8;
#endif
@@ -33,4 +34,52 @@ typedef unsigned short u16;
typedef unsigned int u32;
#endif
+#ifdef WORDS_BIGENDIAN /* big endian host */
+
+#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))
+#define be_to_h_u16(x) (*(u16*)(x))
+
+#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_u16_to_le(buf, val) \
+ do { \
+ buf[0] = (val & 0xff000) >> 8; \
+ buf[1] = (val & 0x00ff); \
+ } while (0)
+
+#define h_u32_to_be(buf, val) do { *(u32*)(buf) = (val); } while (0)
+#define h_u16_to_be(buf, val) do { *(u16*)(buf) = (val); } while (0)
+
+#else /* little endian host */
+#define le_to_h_u32(x) (*(u32*)(x))
+#define le_to_h_u16(x) (*(u16*)(x))
+#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 { *(u32*)(buf) = (val); } while (0)
+#define h_u16_to_le(buf, val) do { *(u16*)(buf) = (val); } 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_be(buf, val) \
+ do { \
+ buf[0] = (val & 0xff000) >> 8; \
+ buf[1] = (val & 0x00ff); \
+ } while (0)
+#endif
+
#endif /* TYPES_H */