1 files changed, 22 insertions, 0 deletions
diff --git a/include/crc32.h b/include/crc32.h
new file mode 100644
index 0000000..4b51177
--- /dev/null
+++ b/include/crc32.h
@@ -0,0 +1,22 @@
+/*
+ * This code was taken from the linux kernel. The license is GPL Version 2.
+ */
+
+#ifndef __CRC32_H__
+#define __CRC32_H__
+
+#include <stdint.h>
+
+extern const uint32_t crc32_table[256];
+
+/* Return a 32-bit CRC of the contents of the buffer. */
+static inline uint32_t crc32(uint32_t val, const void *ss, int len)
+{
+	const unsigned char *s = ss;
+
+	while (--len >= 0)
+		val = crc32_table[(val ^ *s++) & 0xff] ^ (val >> 8);
+	return val;
+}
+
+#endif /* __CRC32_H__ */