1 files changed, 54 insertions, 0 deletions
diff --git a/utils/bswap.h b/utils/bswap.h
new file mode 100644
index 000000000..1742d2507
--- /dev/null
+++ b/utils/bswap.h
@@ -0,0 +1,54 @@
+#ifndef _BSWAP_H
+#define	_BSWAP_H 1
+
+#if !defined(__BYTE_ORDER) && defined(BYTE_ORDER)
+#  define __BYTE_ORDER = BYTE_ORDER
+#endif
+
+#ifndef __BYTE_ORDER
+#ifdef __linux__
+#include <endian.h>
+#else
+#define	__LITTLE_ENDIAN	1234	/* least-significant byte first (vax, pc) */
+#define	__BIG_ENDIAN	4321	/* most-significant byte first (IBM, net) */
+#define	__PDP_ENDIAN	3412	/* LSB first in word, MSW first in long (pdp) */
+
+#if defined(sun386) || defined(i386)
+#define	__BYTE_ORDER	__LITTLE_ENDIAN
+#endif
+
+#if defined(sparc)
+#define	__BYTE_ORDER	__BIG_ENDIAN
+#endif
+
+#endif /* __linux__ */
+#endif /* __BYTE_ORDER */
+
+
+#ifndef __BYTE_ORDER
+# error "Undefined __BYTE_ORDER"
+#endif
+
+#ifdef __linux__
+#include <byteswap.h>
+#else
+#include <string.h>
+static __inline__ uint32_t bswap_32(uint32_t x)
+     {
+       uint32_t res;
+
+       swab((void*)&x, (void*)&res, sizeof(uint32_t));
+       
+       return res;
+     }
+
+static __inline__ uint16_t bswap_16(uint16_t x)
+     {
+       uint16_t res;
+
+       swab((void*)&x, (void*)&res, sizeof(uint16_t));
+       return res;
+     }
+#endif
+
+#endif