Add start of mke2fs/gene2fs, and some other stuff I've been working on.

1 files changed, 21 insertions, 0 deletions

diff --git a/lib/portability.h b/lib/portability.h
new file mode 100644
index 00000000..dca0ddea
--- /dev/null
+++ b/lib/portability.h
@@ -0,0 +1,21 @@
+#include <endian.h>
+
+#if __BYTE_ORDER == __BIG_ENDIAN
+#define IS_BIG_ENDIAN 1
+#define IS_LITTLE_ENDIAN 0
+#define SWAP_BE16(x) (x)
+#define SWAP_BE32(x) (x)
+#define SWAP_BE64(x) (x)
+#define SWAP_LE16(x) bswap_16(x)
+#define SWAP_LE32(x) bswap_32(x)
+#define SWAP_LE64(x) bswap_64(x)
+#else
+#define IS_LITTLE_ENDIAN 1
+#define IS_BIG_ENDIAN 0
+#define SWAP_BE16(x) bswap_16(x)
+#define SWAP_BE32(x) bswap_32(x)
+#define SWAP_BE64(x) bswap_64(x)
+#define SWAP_LE16(x) (x)
+#define SWAP_LE32(x) (x)
+#define SWAP_LE64(x) (x)
+#endif