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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <iconv.h>
#include "datachunk.h"
DataChunk *DataChunk_new(QRencodeMode mode)
{
DataChunk *chunk;
chunk = (DataChunk *)calloc(1, sizeof(DataChunk));
if(chunk == NULL) return NULL;
chunk->mode = mode;
return chunk;
}
void DataChunk_free(DataChunk *chunk)
{
if(chunk) {
if(chunk->data) free(chunk->data);
free(chunk);
}
}
void DataChunk_freeList(DataChunk *list)
{
DataChunk *next;
while(list != NULL) {
next = list->next;
DataChunk_free(list);
list = next;
}
}
static void dumpNum(DataChunk *chunk)
{
printf("%s\n", chunk->data);
}
static void dumpAn(DataChunk *chunk)
{
printf("%s\n", chunk->data);
}
static void dump8(DataChunk *chunk)
{
size_t i, j;
unsigned char c;
size_t count = 0;
unsigned char buf[16];
for(i=0; i<chunk->size; i++) {
buf[count] = chunk->data[i];
c = chunk->data[i];
if(c >= ' ' && c <= '~') {
putchar(c);
} else {
putchar('.');
}
count++;
if(count >= 16) {
putchar(' ');
for(j=0; j<16; j++) {
printf(" %02x", buf[j]);
}
count = 0;
putchar('\n');
}
}
if(count > 0) {
for(i=0; i<16 - count; i++) {
putchar(' ');
}
putchar(' ');
for(j=0; j<count; j++) {
printf(" %02x", buf[j]);
}
count = 0;
putchar('\n');
}
}
static void dumpKanji(DataChunk *chunk)
{
iconv_t conv;
char *inbuf, *outbuf, *outp;
size_t inbytes, outbytes, ret;
conv = iconv_open("UTF-8", "SHIFT_JIS");
inbytes = chunk->size;
inbuf = (char *)chunk->data;
outbytes = inbytes * 4 + 1;
outbuf = (char *)malloc(inbytes * 4 + 1);
outp = outbuf;
ret = iconv(conv, &inbuf, &inbytes, &outp, &outbytes);
if(ret == (size_t) -1) { perror(NULL); }
*outp = '\0';
printf("%s\n", outbuf);
iconv_close(conv);
free(outbuf);
}
static void dumpChunk(DataChunk *chunk)
{
switch(chunk->mode) {
case QR_MODE_NUM:
printf("Numeric: %zu bytes\n", chunk->size);
dumpNum(chunk);
break;
case QR_MODE_AN:
printf("AlphaNumeric: %zu bytes\n", chunk->size);
dumpAn(chunk);
break;
case QR_MODE_8:
printf("8-bit data: %zu bytes\n", chunk->size);
dump8(chunk);
break;
case QR_MODE_KANJI:
printf("Kanji: %zu bytes\n", chunk->size);
dumpKanji(chunk);
break;
case QR_MODE_NUL:
case QR_MODE_STRUCTURE:
case QR_MODE_ECI:
case QR_MODE_FNC1FIRST:
case QR_MODE_FNC1SECOND:
printf("Invalid or reserved: %zu bytes\n", chunk->size);
dump8(chunk);
break;
}
}
void DataChunk_dumpChunkList(DataChunk *list)
{
while(list != NULL) {
dumpChunk(list);
list = list->next;
}
}
int DataChunk_totalSize(DataChunk *list)
{
int size = 0;
while(list != NULL) {
size += list->size;
list = list->next;
}
return size;
}
unsigned char *DataChunk_concatChunkList(DataChunk *list, int *retsize)
{
int size, idx;
unsigned char *data;
size = DataChunk_totalSize(list);
if(size <= 0) return NULL;
data = (unsigned char *)malloc((size_t)size + 1);
idx = 0;
while(list != NULL) {
memcpy(&data[idx], list->data, list->size);
idx += list->size;
list = list->next;
}
data[size] = '\0';
*retsize = size;
return data;
}
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