/* auspost.c - Handles Australia Post 4-State Barcode */
/*
libzint - the open source barcode library
Copyright (C) 2008 Robin Stuart <zint@hotmail.co.uk>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#define GDSET "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz #"
static char *AusNTable[10] = {"00", "01", "02", "10", "11", "12", "20", "21", "22", "30"};
static char *AusCTable[64] = {"222", "300", "301", "302", "310", "311", "312", "320", "321", "322",
"000", "001", "002", "010", "011", "012", "020", "021", "022", "100", "101", "102", "110",
"111", "112", "120", "121", "122", "200", "201", "202", "210", "211", "212", "220", "221",
"023", "030", "031", "032", "033", "103", "113", "123", "130", "131", "132", "133", "203",
"213", "223", "230", "231", "232", "233", "303", "313", "323", "330", "331", "332", "333",
"003", "013"};
static char *AusBarTable[64] = {"000", "001", "002", "003", "010", "011", "012", "013", "020", "021",
"022", "023", "030", "031", "032", "033", "100", "101", "102", "103", "110", "111", "112",
"113", "120", "121", "122", "123", "130", "131", "132", "133", "200", "201", "202", "203",
"210", "211", "212", "213", "220", "221", "222", "223", "230", "231", "232", "233", "300",
"301", "302", "303", "310", "311", "312", "313", "320", "321", "322", "323", "330", "331",
"332", "333"};
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include "common.h"
#include "reedsol.h"
void rs_error(char data_pattern[])
{
/* Adds Reed-Solomon error correction to auspost */
int reader, triple_writer;
char triple[31], inv_triple[31];
unsigned char result[5];
triple_writer = 0;
for(reader = 2; reader < strlen(data_pattern); reader+= 3)
{
triple[triple_writer] = 0;
switch(data_pattern[reader])
{
case '1': triple[triple_writer] += 16; break;
case '2': triple[triple_writer] += 32; break;
case '3': triple[triple_writer] += 48; break;
}
switch(data_pattern[reader + 1])
{
case '1': triple[triple_writer] += 4; break;
case '2': triple[triple_writer] += 8; break;
case '3': triple[triple_writer] += 12; break;
}
switch(data_pattern[reader + 2])
{
case '1': triple[triple_writer] += 1; break;
case '2': triple[triple_writer] += 2; break;
case '3': triple[triple_writer] += 3; break;
}
triple_writer++;
}
for(reader = 0; reader < triple_writer; reader++)
{
inv_triple[reader] = triple[(triple_writer - 1) - reader];
}
rs_init_gf(0x43);
rs_init_code(4, 1);
rs_encode(triple_writer, (unsigned char*) inv_triple, result);
for(reader = 4; reader > 0; reader--)
{
concat(data_pattern, AusBarTable[(int)result[reader - 1]]);
}
rs_free();
}
int australia_post(struct zint_symbol *symbol, unsigned char source[])
{
/* Handles Australia Posts's 4 State Codes */
/* Customer Standard Barcode, Barcode 2 or Barcode 3 system determined automatically
(i.e. the FCC doesn't need to be specified by the user) dependent
on the length of the input string */
/* The contents of data_pattern conform to the following standard:
0 = Tracker, Ascender and Descender
1 = Tracker and Ascender
2 = Tracker and Descender
3 = Tracker only */
char data_pattern[200];
char fcc[3], dpid[10];
unsigned int loopey, reader;
int writer, i;
strcpy (data_pattern, "");
int errno, zeroes;
char localstr[30];
errno = 0;
/* Do all of the length checking first to avoid stack smashing */
if(symbol->symbology == BARCODE_AUSPOST) {
/* Format control code (FCC) */
switch(ustrlen(source))
{
case 8: strcpy(fcc, "11"); break;
case 13: strcpy(fcc, "59"); break;
case 16: strcpy(fcc, "59"); errno = is_sane(NESET, source); break;
case 18: strcpy(fcc, "62"); break;
case 23: strcpy(fcc, "62"); errno = is_sane(NESET, source); break;
default: strcpy(symbol->errtxt, "Auspost input is wrong length [631]");
return ERROR_TOO_LONG;
break;
}
if(errno == ERROR_INVALID_DATA) {
strcpy(symbol->errtxt, "Invalid characters in data [632]");
return errno;
}
} else {
if(ustrlen(source) > 8) {
strcpy(symbol->errtxt, "Auspost input is too long [633]");
return ERROR_TOO_LONG;
}
switch(symbol->symbology) {
case BARCODE_AUSREPLY: strcpy(fcc, "45"); break;
case BARCODE_AUSROUTE: strcpy(fcc, "87"); break;
case BARCODE_AUSREDIRECT: strcpy(fcc, "92"); break;
}
/* Add leading zeros as required */
strcpy(localstr, "");
zeroes = 8 - ustrlen(source);
for(i = 0; i < zeroes; i++) {
concat(localstr, "0");
}
}
concat(localstr, (char*)source);
errno = is_sane(GDSET, (unsigned char *)localstr);
if(errno == ERROR_INVALID_DATA) {
strcpy(symbol->errtxt, "Invalid characters in data [634]");
return errno;
}
/* Verifiy that the first 8 characters are numbers */
for(loopey = 0; loopey < 8; loopey++) {
dpid[loopey] = localstr[loopey];
}
dpid[8] = '\0';
errno = is_sane(NESET, (unsigned char *)dpid);
if(errno == ERROR_INVALID_DATA) {
strcpy(symbol->errtxt, "Invalid characters in DPID [635]");
return errno;
}
/* Start character */
concat(data_pattern, "13");
/* Encode the FCC */
for(reader = 0; reader < 2; reader++)
{
lookup(NESET, AusNTable, fcc[reader], data_pattern);
}
/* printf("AUSPOST FCC: %s ", fcc); */
/* Delivery Point Identifier (DPID) */
for(reader = 0; reader < 8; reader++)
{
lookup(NESET, AusNTable, dpid[reader], data_pattern);
}
/* Customer Information */
if(strlen(localstr) > 8)
{
if((strlen(localstr) == 13) || (strlen(localstr) == 18)) {
for(reader = 8; reader < strlen(localstr); reader++) {
lookup(GDSET, AusCTable, localstr[reader], data_pattern);
}
}
if((strlen(localstr) == 16) || (strlen(localstr) == 23)) {
for(reader = 8; reader < strlen(localstr); reader++) {
lookup(NESET, AusNTable, localstr[reader], data_pattern);
}
}
}
/* Filler bar */
if(strlen(data_pattern) == 22) {
concat(data_pattern, "3");
}
if(strlen(data_pattern) == 37) {
concat(data_pattern, "3");
}
if(strlen(data_pattern) == 52) {
concat(data_pattern, "3");
}
/* Reed Solomon error correction */
rs_error(data_pattern);
/* Stop character */
concat(data_pattern, "13");
/* Turn the symbol into a bar pattern ready for plotting */
writer = 0;
for(loopey = 0; loopey < strlen(data_pattern); loopey++)
{
if((data_pattern[loopey] == '1') || (data_pattern[loopey] == '0'))
{
symbol->encoded_data[0][writer] = '1';
}
symbol->encoded_data[1][writer] = '1';
if((data_pattern[loopey] == '2') || (data_pattern[loopey] == '0'))
{
symbol->encoded_data[2][writer] = '1';
}
writer += 2;
}
symbol->row_height[0] = 4;
symbol->row_height[1] = 2;
symbol->row_height[2] = 4;
symbol->rows = 3;
symbol->width = writer - 1;
return errno;
}