diff --git a/ap/app/qrencode/qrencode.c b/ap/app/qrencode/qrencode.c
new file mode 100644
index 0000000..466c02a
--- /dev/null
+++ b/ap/app/qrencode/qrencode.c
@@ -0,0 +1,927 @@
+/*
+ * qrencode - QR Code encoder
+ *
+ * Copyright (C) 2006-2012 Kentaro Fukuchi <kentaro@fukuchi.org>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+#include "qrencode.h"
+#include "qrspec.h"
+#include "mqrspec.h"
+#include "bitstream.h"
+#include "qrinput.h"
+#include "rscode.h"
+#include "split.h"
+#include "mask.h"
+#include "mmask.h"
+
+/******************************************************************************
+ * Raw code
+ *****************************************************************************/
+
+typedef struct {
+	int dataLength;
+	unsigned char *data;
+	int eccLength;
+	unsigned char *ecc;
+} RSblock;
+
+typedef struct {
+	int version;
+	int dataLength;
+	int eccLength;
+	unsigned char *datacode;
+	unsigned char *ecccode;
+	int b1;
+	int blocks;
+	RSblock *rsblock;
+	int count;
+} QRRawCode;
+
+static void RSblock_initBlock(RSblock *block, int dl, unsigned char *data, int el, unsigned char *ecc, RS *rs)
+{
+	block->dataLength = dl;
+	block->data = data;
+	block->eccLength = el;
+	block->ecc = ecc;
+
+	encode_rs_char(rs, data, ecc);
+}
+
+static int RSblock_init(RSblock *blocks, int spec[5], unsigned char *data, unsigned char *ecc)
+{
+	int i;
+	RSblock *block;
+	unsigned char *dp, *ep;
+	RS *rs;
+	int el, dl;
+
+	dl = QRspec_rsDataCodes1(spec);
+	el = QRspec_rsEccCodes1(spec);
+	rs = init_rs(8, 0x11d, 0, 1, el, 255 - dl - el);
+	if(rs == NULL) return -1;
+
+	block = blocks;
+	dp = data;
+	ep = ecc;
+	for(i=0; i<QRspec_rsBlockNum1(spec); i++) {
+		RSblock_initBlock(block, dl, dp, el, ep, rs);
+		dp += dl;
+		ep += el;
+		block++;
+	}
+
+	if(QRspec_rsBlockNum2(spec) == 0) return 0;
+
+	dl = QRspec_rsDataCodes2(spec);
+	el = QRspec_rsEccCodes2(spec);
+	rs = init_rs(8, 0x11d, 0, 1, el, 255 - dl - el);
+	if(rs == NULL) return -1;
+	for(i=0; i<QRspec_rsBlockNum2(spec); i++) {
+		RSblock_initBlock(block, dl, dp, el, ep, rs);
+		dp += dl;
+		ep += el;
+		block++;
+	}
+
+	return 0;
+}
+
+static void QRraw_free(QRRawCode *raw);
+static QRRawCode *QRraw_new(QRinput *input)
+{
+	QRRawCode *raw;
+	int spec[5], ret;
+
+	raw = (QRRawCode *)malloc(sizeof(QRRawCode));
+	if(raw == NULL) return NULL;
+
+	raw->datacode = QRinput_getByteStream(input);
+	if(raw->datacode == NULL) {
+		free(raw);
+		return NULL;
+	}
+
+	QRspec_getEccSpec(input->version, input->level, spec);
+
+	raw->version = input->version;
+	raw->b1 = QRspec_rsBlockNum1(spec);
+	raw->dataLength = QRspec_rsDataLength(spec);
+	raw->eccLength = QRspec_rsEccLength(spec);
+	raw->ecccode = (unsigned char *)malloc(raw->eccLength);
+	if(raw->ecccode == NULL) {
+		free(raw->datacode);
+		free(raw);
+		return NULL;
+	}
+
+	raw->blocks = QRspec_rsBlockNum(spec);
+	raw->rsblock = (RSblock *)calloc(raw->blocks, sizeof(RSblock));
+	if(raw->rsblock == NULL) {
+		QRraw_free(raw);
+		return NULL;
+	}
+	ret = RSblock_init(raw->rsblock, spec, raw->datacode, raw->ecccode);
+	if(ret < 0) {
+		QRraw_free(raw);
+		return NULL;
+	}
+
+	raw->count = 0;
+
+	return raw;
+}
+
+/**
+ * Return a code (byte).
+ * This function can be called iteratively.
+ * @param raw raw code.
+ * @return code
+ */
+static unsigned char QRraw_getCode(QRRawCode *raw)
+{
+	int col, row;
+	unsigned char ret;
+
+	if(raw->count < raw->dataLength) {
+		row = raw->count % raw->blocks;
+		col = raw->count / raw->blocks;
+		if(col >= raw->rsblock[0].dataLength) {
+			row += raw->b1;
+		}
+		ret = raw->rsblock[row].data[col];
+	} else if(raw->count < raw->dataLength + raw->eccLength) {
+		row = (raw->count - raw->dataLength) % raw->blocks;
+		col = (raw->count - raw->dataLength) / raw->blocks;
+		ret = raw->rsblock[row].ecc[col];
+	} else {
+		return 0;
+	}
+	raw->count++;
+	return ret;
+}
+
+static void QRraw_free(QRRawCode *raw)
+{
+	if(raw != NULL) {
+		free(raw->datacode);
+		free(raw->ecccode);
+		free(raw->rsblock);
+		free(raw);
+	}
+}
+
+/******************************************************************************
+ * Raw code for Micro QR Code
+ *****************************************************************************/
+
+typedef struct {
+	int version;
+	int dataLength;
+	int eccLength;
+	unsigned char *datacode;
+	unsigned char *ecccode;
+	RSblock *rsblock;
+	int oddbits;
+	int count;
+} MQRRawCode;
+
+static void MQRraw_free(MQRRawCode *raw);
+static MQRRawCode *MQRraw_new(QRinput *input)
+{
+	MQRRawCode *raw;
+	RS *rs;
+
+	raw = (MQRRawCode *)malloc(sizeof(MQRRawCode));
+	if(raw == NULL) return NULL;
+
+	raw->version = input->version;
+	raw->dataLength = MQRspec_getDataLength(input->version, input->level);
+	raw->eccLength = MQRspec_getECCLength(input->version, input->level);
+	raw->oddbits = raw->dataLength * 8 - MQRspec_getDataLengthBit(input->version, input->level);
+	raw->datacode = QRinput_getByteStream(input);
+	if(raw->datacode == NULL) {
+		free(raw);
+		return NULL;
+	}
+	raw->ecccode = (unsigned char *)malloc(raw->eccLength);
+	if(raw->ecccode == NULL) {
+		free(raw->datacode);
+		free(raw);
+		return NULL;
+	}
+
+	raw->rsblock = (RSblock *)calloc(1, sizeof(RSblock));
+	if(raw->rsblock == NULL) {
+		MQRraw_free(raw);
+		return NULL;
+	}
+
+	rs = init_rs(8, 0x11d, 0, 1, raw->eccLength, 255 - raw->dataLength - raw->eccLength);
+	if(rs == NULL) {
+		MQRraw_free(raw);
+		return NULL;
+	}
+
+	RSblock_initBlock(raw->rsblock, raw->dataLength, raw->datacode, raw->eccLength, raw->ecccode, rs);
+
+	raw->count = 0;
+
+	return raw;
+}
+
+/**
+ * Return a code (byte).
+ * This function can be called iteratively.
+ * @param raw raw code.
+ * @return code
+ */
+static unsigned char MQRraw_getCode(MQRRawCode *raw)
+{
+	unsigned char ret;
+
+	if(raw->count < raw->dataLength) {
+		ret = raw->datacode[raw->count];
+	} else if(raw->count < raw->dataLength + raw->eccLength) {
+		ret = raw->ecccode[raw->count - raw->dataLength];
+	} else {
+		return 0;
+	}
+	raw->count++;
+	return ret;
+}
+
+static void MQRraw_free(MQRRawCode *raw)
+{
+	if(raw != NULL) {
+		free(raw->datacode);
+		free(raw->ecccode);
+		free(raw->rsblock);
+		free(raw);
+	}
+}
+
+
+/******************************************************************************
+ * Frame filling
+ *****************************************************************************/
+
+typedef struct {
+	int width;
+	unsigned char *frame;
+	int x, y;
+	int dir;
+	int bit;
+	int mqr;
+} FrameFiller;
+
+static FrameFiller *FrameFiller_new(int width, unsigned char *frame, int mqr)
+{
+	FrameFiller *filler;
+
+	filler = (FrameFiller *)malloc(sizeof(FrameFiller));
+	if(filler == NULL) return NULL;
+	filler->width = width;
+	filler->frame = frame;
+	filler->x = width - 1;
+	filler->y = width - 1;
+	filler->dir = -1;
+	filler->bit = -1;
+	filler->mqr = mqr;
+
+	return filler;
+}
+
+static unsigned char *FrameFiller_next(FrameFiller *filler)
+{
+	unsigned char *p;
+	int x, y, w;
+
+	if(filler->bit == -1) {
+		filler->bit = 0;
+		return filler->frame + filler->y * filler->width + filler->x;
+	}
+
+	x = filler->x;
+	y = filler->y;
+	p = filler->frame;
+	w = filler->width;
+
+	if(filler->bit == 0) {
+		x--;
+		filler->bit++;
+	} else {
+		x++;
+		y += filler->dir;
+		filler->bit--;
+	}
+
+	if(filler->dir < 0) {
+		if(y < 0) {
+			y = 0;
+			x -= 2;
+			filler->dir = 1;
+			if(!filler->mqr && x == 6) {
+				x--;
+				y = 9;
+			}
+		}
+	} else {
+		if(y == w) {
+			y = w - 1;
+			x -= 2;
+			filler->dir = -1;
+			if(!filler->mqr && x == 6) {
+				x--;
+				y -= 8;
+			}
+		}
+	}
+	if(x < 0 || y < 0) return NULL;
+
+	filler->x = x;
+	filler->y = y;
+
+	if(p[y * w + x] & 0x80) {
+		// This tail recursion could be optimized.
+		return FrameFiller_next(filler);
+	}
+	return &p[y * w + x];
+}
+
+#ifdef WITH_TESTS
+extern unsigned char *FrameFiller_test(int version)
+{
+	int width;
+	unsigned char *frame, *p;
+	FrameFiller *filler;
+	int i, length;
+
+	width = QRspec_getWidth(version);
+	frame = QRspec_newFrame(version);
+	if(frame == NULL) return NULL;
+	filler = FrameFiller_new(width, frame, 0);
+	if(filler == NULL) {
+		free(frame);
+		return NULL;
+	}
+	length = QRspec_getDataLength(version, QR_ECLEVEL_L) * 8
+	       + QRspec_getECCLength(version, QR_ECLEVEL_L) * 8
+		   + QRspec_getRemainder(version);
+	for(i=0; i<length; i++) {
+		p = FrameFiller_next(filler);
+		if(p == NULL) {
+			free(filler);
+			free(frame);
+			return NULL;
+		}
+		*p = (unsigned char)(i & 0x7f) | 0x80;
+	}
+	free(filler);
+	return frame;
+}
+
+extern unsigned char *FrameFiller_testMQR(int version)
+{
+	int width;
+	unsigned char *frame, *p;
+	FrameFiller *filler;
+	int i, length;
+
+	width = MQRspec_getWidth(version);
+	frame = MQRspec_newFrame(version);
+	if(frame == NULL) return NULL;
+	filler = FrameFiller_new(width, frame, 1);
+	if(filler == NULL) {
+		free(frame);
+		return NULL;
+	}
+	length = MQRspec_getDataLengthBit(version, QR_ECLEVEL_L)
+	       + MQRspec_getECCLength(version, QR_ECLEVEL_L) * 8;
+	for(i=0; i<length; i++) {
+		p = FrameFiller_next(filler);
+		if(p == NULL) {
+			fprintf(stderr, "Frame filler run over the frame!\n");
+			free(filler);
+			return frame;
+		}
+		*p = (unsigned char)(i & 0x7f) | 0x80;
+	}
+	free(filler);
+	return frame;
+}
+#endif
+
+
+/******************************************************************************
+ * QR-code encoding
+ *****************************************************************************/
+
+static QRcode *QRcode_new(int version, int width, unsigned char *data)
+{
+	QRcode *qrcode;
+
+	qrcode = (QRcode *)malloc(sizeof(QRcode));
+	if(qrcode == NULL) return NULL;
+
+	qrcode->version = version;
+	qrcode->width = width;
+	qrcode->data = data;
+
+	return qrcode;
+}
+
+void QRcode_free(QRcode *qrcode)
+{
+	if(qrcode != NULL) {
+		free(qrcode->data);
+		free(qrcode);
+	}
+}
+
+static QRcode *QRcode_encodeMask(QRinput *input, int mask)
+{
+	int width, version;
+	QRRawCode *raw;
+	unsigned char *frame, *masked, *p, code, bit;
+	FrameFiller *filler;
+	int i, j;
+	QRcode *qrcode = NULL;
+
+	if(input->mqr) {
+		errno = EINVAL;
+		return NULL;
+	}
+	if(input->version < 0 || input->version > QRSPEC_VERSION_MAX) {
+		errno = EINVAL;
+		return NULL;
+	}
+	if(input->level > QR_ECLEVEL_H) {
+		errno = EINVAL;
+		return NULL;
+	}
+
+	raw = QRraw_new(input);
+	if(raw == NULL) return NULL;
+
+	version = raw->version;
+	width = QRspec_getWidth(version);
+	frame = QRspec_newFrame(version);
+	if(frame == NULL) {
+		QRraw_free(raw);
+		return NULL;
+	}
+	filler = FrameFiller_new(width, frame, 0);
+	if(filler == NULL) {
+		QRraw_free(raw);
+		free(frame);
+		return NULL;
+	}
+
+	/* inteleaved data and ecc codes */
+	for(i=0; i<raw->dataLength + raw->eccLength; i++) {
+		code = QRraw_getCode(raw);
+		bit = 0x80;
+		for(j=0; j<8; j++) {
+			p = FrameFiller_next(filler);
+			if(p == NULL)  goto EXIT;
+			*p = 0x02 | ((bit & code) != 0);
+			bit = bit >> 1;
+		}
+	}
+	QRraw_free(raw);
+	raw = NULL;
+	/* remainder bits */
+	j = QRspec_getRemainder(version);
+	for(i=0; i<j; i++) {
+		p = FrameFiller_next(filler);
+		if(p == NULL)  goto EXIT;
+		*p = 0x02;
+	}
+
+	/* masking */
+	if(mask == -2) { // just for debug purpose
+		masked = (unsigned char *)malloc(width * width);
+		memcpy(masked, frame, width * width);
+	} else if(mask < 0) {
+		masked = Mask_mask(width, frame, input->level);
+	} else {
+		masked = Mask_makeMask(width, frame, mask, input->level);
+	}
+	if(masked == NULL) {
+		goto EXIT;
+	}
+	qrcode = QRcode_new(version, width, masked);
+
+EXIT:
+	QRraw_free(raw);
+	free(filler);
+	free(frame);
+	return qrcode;
+}
+
+static QRcode *QRcode_encodeMaskMQR(QRinput *input, int mask)
+{
+	int width, version;
+	MQRRawCode *raw;
+	unsigned char *frame, *masked, *p, code, bit;
+	FrameFiller *filler;
+	int i, j;
+	QRcode *qrcode = NULL;
+
+	if(!input->mqr) {
+		errno = EINVAL;
+		return NULL;
+	}
+	if(input->version <= 0 || input->version > MQRSPEC_VERSION_MAX) {
+		errno = EINVAL;
+		return NULL;
+	}
+	if(input->level > QR_ECLEVEL_Q) {
+		errno = EINVAL;
+		return NULL;
+	}
+
+	raw = MQRraw_new(input);
+	if(raw == NULL) return NULL;
+
+	version = raw->version;
+	width = MQRspec_getWidth(version);
+	frame = MQRspec_newFrame(version);
+	if(frame == NULL) {
+		MQRraw_free(raw);
+		return NULL;
+	}
+	filler = FrameFiller_new(width, frame, 1);
+	if(filler == NULL) {
+		MQRraw_free(raw);
+		free(frame);
+		return NULL;
+	}
+
+	/* inteleaved data and ecc codes */
+	for(i=0; i<raw->dataLength + raw->eccLength; i++) {
+		code = MQRraw_getCode(raw);
+		if(raw->oddbits && i == raw->dataLength - 1) {
+			bit = 1 << (raw->oddbits - 1);
+			for(j=0; j<raw->oddbits; j++) {
+				p = FrameFiller_next(filler);
+				if(p == NULL) goto EXIT;
+				*p = 0x02 | ((bit & code) != 0);
+				bit = bit >> 1;
+			}
+		} else {
+			bit = 0x80;
+			for(j=0; j<8; j++) {
+				p = FrameFiller_next(filler);
+				if(p == NULL) goto EXIT;
+				*p = 0x02 | ((bit & code) != 0);
+				bit = bit >> 1;
+			}
+		}
+	}
+	MQRraw_free(raw);
+	raw = NULL;
+
+	/* masking */
+	if(mask < 0) {
+		masked = MMask_mask(version, frame, input->level);
+	} else {
+		masked = MMask_makeMask(version, frame, mask, input->level);
+	}
+	if(masked == NULL) {
+		goto EXIT;
+	}
+
+	qrcode = QRcode_new(version, width, masked);
+
+EXIT:
+	MQRraw_free(raw);
+	free(filler);
+	free(frame);
+	return qrcode;
+}
+
+QRcode *QRcode_encodeInput(QRinput *input)
+{
+	if(input->mqr) {
+		return QRcode_encodeMaskMQR(input, -1);
+	} else {
+		return QRcode_encodeMask(input, -1);
+	}
+}
+
+static QRcode *QRcode_encodeStringReal(const char *string, int version, QRecLevel level, int mqr, QRencodeMode hint, int casesensitive)
+{
+	QRinput *input;
+	QRcode *code;
+	int ret;
+
+	if(string == NULL) {
+		errno = EINVAL;
+		return NULL;
+	}
+	if(hint != QR_MODE_8 && hint != QR_MODE_KANJI) {
+		errno = EINVAL;
+		return NULL;
+	}
+
+	if(mqr) {
+		input = QRinput_newMQR(version, level);
+	} else {
+		input = QRinput_new2(version, level);
+	}
+	if(input == NULL) return NULL;
+
+	ret = Split_splitStringToQRinput(string, input, hint, casesensitive);
+	if(ret < 0) {
+		QRinput_free(input);
+		return NULL;
+	}
+	code = QRcode_encodeInput(input);
+	QRinput_free(input);
+
+	return code;
+}
+
+QRcode *QRcode_encodeString(const char *string, int version, QRecLevel level, QRencodeMode hint, int casesensitive)
+{
+	return QRcode_encodeStringReal(string, version, level, 0, hint, casesensitive);
+}
+
+QRcode *QRcode_encodeStringMQR(const char *string, int version, QRecLevel level, QRencodeMode hint, int casesensitive)
+{
+	return QRcode_encodeStringReal(string, version, level, 1, hint, casesensitive);
+}
+
+static QRcode *QRcode_encodeDataReal(const unsigned char *data, int length, int version, QRecLevel level, int mqr)
+{
+	QRinput *input;
+	QRcode *code;
+	int ret;
+
+	if(data == NULL || length == 0) {
+		errno = EINVAL;
+		return NULL;
+	}
+
+	if(mqr) {
+		input = QRinput_newMQR(version, level);
+	} else {
+		input = QRinput_new2(version, level);
+	}
+	if(input == NULL) return NULL;
+
+	ret = QRinput_append(input, QR_MODE_8, length, data);
+	if(ret < 0) {
+		QRinput_free(input);
+		return NULL;
+	}
+	code = QRcode_encodeInput(input);
+	QRinput_free(input);
+
+	return code;
+}
+
+QRcode *QRcode_encodeData(int size, const unsigned char *data, int version, QRecLevel level)
+{
+	return QRcode_encodeDataReal(data, size, version, level, 0);
+}
+
+QRcode *QRcode_encodeString8bit(const char *string, int version, QRecLevel level)
+{
+	if(string == NULL) {
+		errno = EINVAL;
+		return NULL;
+	}
+	return QRcode_encodeDataReal((unsigned char *)string, strlen(string), version, level, 0);
+}
+
+QRcode *QRcode_encodeDataMQR(int size, const unsigned char *data, int version, QRecLevel level)
+{
+	return QRcode_encodeDataReal(data, size, version, level, 1);
+}
+
+QRcode *QRcode_encodeString8bitMQR(const char *string, int version, QRecLevel level)
+{
+	if(string == NULL) {
+		errno = EINVAL;
+		return NULL;
+	}
+	return QRcode_encodeDataReal((unsigned char *)string, strlen(string), version, level, 1);
+}
+
+
+/******************************************************************************
+ * Structured QR-code encoding
+ *****************************************************************************/
+
+static QRcode_List *QRcode_List_newEntry(void)
+{
+	QRcode_List *entry;
+
+	entry = (QRcode_List *)malloc(sizeof(QRcode_List));
+	if(entry == NULL) return NULL;
+
+	entry->next = NULL;
+	entry->code = NULL;
+
+	return entry;
+}
+
+static void QRcode_List_freeEntry(QRcode_List *entry)
+{
+	if(entry != NULL) {
+		QRcode_free(entry->code);
+		free(entry);
+	}
+}
+
+void QRcode_List_free(QRcode_List *qrlist)
+{
+	QRcode_List *list = qrlist, *next;
+
+	while(list != NULL) {
+		next = list->next;
+		QRcode_List_freeEntry(list);
+		list = next;
+	}
+}
+
+int QRcode_List_size(QRcode_List *qrlist)
+{
+	QRcode_List *list = qrlist;
+	int size = 0;
+
+	while(list != NULL) {
+		size++;
+		list = list->next;
+	}
+
+	return size;
+}
+
+#if 0
+static unsigned char QRcode_parity(const char *str, int size)
+{
+	unsigned char parity = 0;
+	int i;
+
+	for(i=0; i<size; i++) {
+		parity ^= str[i];
+	}
+
+	return parity;
+}
+#endif
+
+QRcode_List *QRcode_encodeInputStructured(QRinput_Struct *s)
+{
+	QRcode_List *head = NULL;
+	QRcode_List *tail = NULL;
+	QRcode_List *entry;
+	QRinput_InputList *list = s->head;
+
+	while(list != NULL) {
+		if(head == NULL) {
+			entry = QRcode_List_newEntry();
+			if(entry == NULL) goto ABORT;
+			head = entry;
+			tail = head;
+		} else {
+			entry = QRcode_List_newEntry();
+			if(entry == NULL) goto ABORT;
+			tail->next = entry;
+			tail = tail->next;
+		}
+		tail->code = QRcode_encodeInput(list->input);
+		if(tail->code == NULL) {
+			goto ABORT;
+		}
+		list = list->next;
+	}
+
+	return head;
+ABORT:
+	QRcode_List_free(head);
+	return NULL;
+}
+
+static QRcode_List *QRcode_encodeInputToStructured(QRinput *input)
+{
+	QRinput_Struct *s;
+	QRcode_List *codes;
+
+	s = QRinput_splitQRinputToStruct(input);
+	if(s == NULL) return NULL;
+
+	codes = QRcode_encodeInputStructured(s);
+	QRinput_Struct_free(s);
+
+	return codes;
+}
+
+static QRcode_List *QRcode_encodeDataStructuredReal(
+	int size, const unsigned char *data,
+	int version, QRecLevel level,
+	int eightbit, QRencodeMode hint, int casesensitive)
+{
+	QRinput *input;
+	QRcode_List *codes;
+	int ret;
+
+	if(version <= 0) {
+		errno = EINVAL;
+		return NULL;
+	}
+	if(!eightbit && (hint != QR_MODE_8 && hint != QR_MODE_KANJI)) {
+		errno = EINVAL;
+		return NULL;
+	}
+
+	input = QRinput_new2(version, level);
+	if(input == NULL) return NULL;
+
+	if(eightbit) {
+		ret = QRinput_append(input, QR_MODE_8, size, data);
+	} else {
+		ret = Split_splitStringToQRinput((char *)data, input, hint, casesensitive);
+	}
+	if(ret < 0) {
+		QRinput_free(input);
+		return NULL;
+	}
+	codes = QRcode_encodeInputToStructured(input);
+	QRinput_free(input);
+
+	return codes;
+}
+
+QRcode_List *QRcode_encodeDataStructured(int size, const unsigned char *data, int version, QRecLevel level) {
+	return QRcode_encodeDataStructuredReal(size, data, version, level, 1, QR_MODE_NUL, 0);
+}
+
+QRcode_List *QRcode_encodeString8bitStructured(const char *string, int version, QRecLevel level) {
+	if(string == NULL) {
+		errno = EINVAL;
+		return NULL;
+	}
+	return QRcode_encodeDataStructured(strlen(string), (unsigned char *)string, version, level);
+}
+
+QRcode_List *QRcode_encodeStringStructured(const char *string, int version, QRecLevel level, QRencodeMode hint, int casesensitive)
+{
+	if(string == NULL) {
+		errno = EINVAL;
+		return NULL;
+	}
+	return QRcode_encodeDataStructuredReal(strlen(string), (unsigned char *)string, version, level, 0, hint, casesensitive);
+}
+
+/******************************************************************************
+ * System utilities
+ *****************************************************************************/
+
+void QRcode_APIVersion(int *major_version, int *minor_version, int *micro_version)
+{
+	if(major_version != NULL) {
+		*major_version = MAJOR_VERSION;
+	}
+	if(minor_version != NULL) {
+		*minor_version = MINOR_VERSION;
+	}
+	if(micro_version != NULL) {
+		*micro_version = MICRO_VERSION;
+	}
+}
+
+char *QRcode_APIVersionString(void)
+{
+	return VERSION;
+}
+
+void QRcode_clearCache(void)
+{
+	QRspec_clearCache();
+	MQRspec_clearCache();
+	free_rs_cache();
+}