humanize_number: New function

include/libutil.h

@@ -0,0 +1,22 @@
+#ifndef _LIBUTIL_H_
+#define _LIBUTIL_H_
+
+#include <features.h>
+#include <sys/types.h>
+
+
+__BEGIN_DECLS
+int humanize_number(char *buf, size_t len, int64_t bytes,
+    const char *suffix, int scale, int flags);
+__END_DECLS
+
+/* humanize_number(3) */
+#define HN_DECIMAL              0x01
+#define HN_NOSPACE              0x02
+#define HN_B                    0x04
+#define HN_DIVISOR_1000         0x08
+
+#define HN_GETSCALE             0x10
+#define HN_AUTOSCALE            0x20
+
+#endif /* !_LIBUTIL_H_ */