#ifndef COMMON_BLOWFISH_INCLUDE
#define COMMON_BLOWFISH_INCLUDE 1

#include <errno.h>
#ifndef __set_errno
#define __set_errno(val) errno = (val)
#endif

typedef unsigned int BF_word;

static unsigned char BF_itoa64[64 + 1] =
	"./ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";

static void BF_encode(char *dst, const BF_word *src, int size)
{
	unsigned char *sptr = (unsigned char *)src;
	unsigned char *end = sptr + size;
	unsigned char *dptr = (unsigned char *)dst;
	unsigned int c1, c2;

	do {
		c1 = *sptr++;
		*dptr++ = BF_itoa64[c1 >> 2];
		c1 = (c1 & 0x03) << 4;
		if (sptr >= end) {
			*dptr++ = BF_itoa64[c1];
			break;
		}

		c2 = *sptr++;
		c1 |= c2 >> 4;
		*dptr++ = BF_itoa64[c1];
		c1 = (c2 & 0x0f) << 2;
		if (sptr >= end) {
			*dptr++ = BF_itoa64[c1];
			break;
		}

		c2 = *sptr++;
		c1 |= c2 >> 6;
		*dptr++ = BF_itoa64[c1];
		*dptr++ = BF_itoa64[c2 & 0x3f];
	} while (sptr < end);
}

#endif