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iec16022.c
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// IEC16022 bar code generation
// Copyright (c) 2007 Adrian Kennard Andrews & Arnold Ltd
// This software is provided under the terms of the GPL v2 or later.
// This software is provided free of charge with a full "Money back" guarantee.
// Use entirely at your own risk. We accept no liability. If you don't like that - don't use it.
// TBA, structured append, and ECI options.
// TBA, library for odd size ECC000-140 codes
#include <stdio.h>
#include <stdint.h>
#include <ctype.h>
#include <string.h>
#include <time.h>
#include <popt.h>
#include <stdlib.h>
#include <unistd.h>
#include <err.h>
#include "image.h"
#include "iec16022ecc200.h"
// simple checked response malloc
void *safemalloc(int n)
{
void *p = malloc(n);
if (!p)
errx(1, "Malloc(%d) failed", n);
return p;
}
// hex dump - bottom left pixel first
void dumphex(unsigned char *grid, int W, int H, unsigned char p, int S, int B)
{
int c = 0,
y;
for (y = -B * S; y < (H + B) * S; y++)
{
int v = 0,
x,
b = 128;
for (x = -B * S; x < (W + B) * S; x++)
{
if (x >= 0 && x < W * S && y >= 0 && y < H * S && (grid[(H - 1 - y / S) * W + (x / S)] & 1))
v |= b;
b >>= 1;
if (!b)
{
printf("%02X", v ^ p);
v = 0;
b = 128;
c++;
}
}
if (b != 128)
{
printf("%02X", v ^ p);
c++;
}
printf(" ");
c++;
if (c >= 40)
{
printf("\n");
c = 0;
}
}
if (c)
printf("\n");
}
int main(int argc, const char *argv[])
{
int c;
int W = 0,
H = 0;
int ecc = 0;
int barcodelen = 0;
char *encoding = NULL;
char *outfile = NULL;
char *infile = NULL;
char *barcode = NULL;
char *format = NULL;
char *size = NULL;
char *eccstr = NULL;
int len = 0,
maxlen = 0,
ecclen = 0,
square = 0,
noquiet = 0;;
int formatcode = 0;
double scale = -1,
dpi = -1;
int S = -1;
unsigned char *grid = 0;
poptContext optCon; // context for parsing command-line options
const struct poptOption optionsTable[] = {
{ "fixed", 's', POPT_ARG_STRING, &size, 0, "Size", "WxH" },
{ "square", 'q', POPT_ARG_NONE, &square, 0, "Square", 0 },
{
"barcode", 'c', POPT_ARG_STRING, &barcode, 0, "Barcode", "text" },
{
"ecc", 0, POPT_ARG_STRING, &eccstr, 0, "ECC", "000/050/080/100/140/200" },
{
"infile", 'i', POPT_ARG_STRING, &infile, 0, "Barcode file", "filename" },
{
"outfile", 'o', POPT_ARG_STRING, &outfile, 0, "Output filename", "filename or -" },
{
"encoding", 'e', POPT_ARG_STRING, &encoding, 0, "Encoding template", "[CTXEAB]* for ecc200 or 11/27/41/37/128/256" },
{ "svg", 0, POPT_ARG_VAL, &formatcode, 'v', "SVG" },
{ "path", 0, POPT_ARG_VAL, &formatcode, 'V', "SVG path" },
{ "png", 0, POPT_ARG_VAL, &formatcode, 'p', "PNG" },
{ "data", 0, POPT_ARG_VAL, &formatcode, 'd', "PNG Data URI" },
{ "eps", 0, POPT_ARG_VAL, &formatcode, 'e', "EPS" },
{ "ps", 0, POPT_ARG_VAL, &formatcode, 'g', "Postscript" },
{ "text", 0, POPT_ARG_VAL, &formatcode, 't', "Text" },
{ "binary", 0, POPT_ARG_VAL, &formatcode, 'b', "Binary" },
{ "hex", 0, POPT_ARG_VAL, &formatcode, 'h', "Hex" },
{ "stamp", 0, POPT_ARG_VAL, &formatcode, 's', "Stamp" },
{ "info", 0, POPT_ARG_VAL, &formatcode, 'i', "Info" },
{ "size", 0, POPT_ARG_VAL, &formatcode, 'x', "Size" },
{ "scale", 0, POPT_ARG_INT, &S, 0, "Scale", "pixels" },
{ "mm", 0, POPT_ARG_DOUBLE, &scale, 0, "Size of pixels", "mm" },
{ "dpi", 0, POPT_ARG_DOUBLE, &dpi, 0, "Size of pixels", "dpi" },
{ "no-quiet", 'Q', POPT_ARG_NONE, &noquiet, 0, "No quiet area" },
{ "format", 'f', POPT_ARGFLAG_DOC_HIDDEN | POPT_ARG_STRING, &format, 0, "Output format",
"x=size/t[s]=text/e[s]=EPS/b=bin/h[s]=hex/p[s]=PNG/g[s]=ps/v[s]=svg/s=stamp" },
POPT_AUTOHELP {
NULL, 0, 0, NULL, 0 }
};
optCon = poptGetContext(NULL, argc, argv, optionsTable, 0);
poptSetOtherOptionHelp(optCon, "[barcode]");
if ((c = poptGetNextOpt(optCon)) < -1)
errx(1, "%s: %s\n", poptBadOption(optCon, POPT_BADOPTION_NOALIAS), poptStrerror(c));
if (poptPeekArg(optCon) && !barcode && !infile)
barcode = (char *) poptGetArg(optCon);
if (poptPeekArg(optCon) || (!barcode && !infile) || (barcode && infile))
{
poptPrintUsage(optCon, stderr, 0);
return -1;
}
if (outfile && !strcmp(outfile, "data:"))
{ // Legacy format for data:
if (*format != 'p')
errx(1, "data: only for png");
outfile = NULL;
*format = 'd';
}
if (outfile && strcmp(outfile, "-") && !freopen(outfile, "w", stdout))
err(1, "%s", outfile);
if (formatcode && format)
errx(1, "--format is deprecated");
char formatspace[2] = { };
if (formatcode)
*(format = formatspace) = formatcode;
if (!format)
format = "t"; // Default
if (scale >= 0 && dpi >= 0)
errx(1, "--mm or --dpi");
if (dpi > 0)
scale = 25.4 / dpi;
if (scale >= 0 && S >= 0 && *format != 'e' && *format != 'g')
errx(1, "--scale or --mm/--dpi");
if (format && *format && format[1]) // Old scale after format
S = atoi(format + 1); // scale
if (S < 0)
S = scale;
if (S <= 0)
S = 1;
if (scale < 0)
scale = 0;
if (infile)
{ // read from file
FILE *f = stdin;
if (strcmp(infile, "-"))
f = fopen(infile, "rb");
barcode = safemalloc(4001);
if (!f)
err(1, "%s", infile);
barcodelen = fread(barcode, 1, 4000, f);
if (barcodelen < 0)
err(1, "%s", infile);
barcode[barcodelen] = 0; // null terminate anyway
fclose(f);
} else
barcodelen = strlen(barcode);
// check parameters
if (size)
{
char *x = strchr(size, 'x');
W = atoi(size);
if (x)
H = atoi(x + 1);
if (!H)
W = H;
}
if (eccstr)
ecc = atoi(eccstr);
if (W & 1)
{ // odd size
if (W != H || W < 9 || W > 49)
errx(1, "Invalid size %dx%d\n", W, H);
if (!eccstr)
{
if (W >= 17)
ecc = 140;
else if (W >= 13)
ecc = 100;
else if (W >= 11)
ecc = 80;
else
ecc = 0;
}
if ((ecc && ecc != 50 && ecc != 80 && ecc != 100 && ecc != 140) || (ecc == 50 && W < 11) || (ecc == 80 && W < 13) || (ecc == 100 && W < 13) || (ecc == 140 && W < 17))
errx(1, "ECC%03d invalid for %dx%d\n", ecc, W, H);
} else if (W)
{ // even size
if (W < H)
{
int t = W;
W = H;
H = t;
}
if (!eccstr)
ecc = 200;
if (ecc != 200)
errx(1, "ECC%03d invalid for %dx%d\n", ecc, W, H);
}
else
{ // auto size
if (!eccstr)
ecc = 200; // default is even sizes only unless explicit ecc set to force odd sizes
}
if (tolower(*format) == 's')
{ // special stamp format checks & defaults
if (!W)
W = H = 32;
if (ecc != 200 || W != 32 || H != 32)
errx(1, "Stamps must be 32x32\n");
if (encoding)
errx(1, "Stamps should use auto encoding\n");
else
{
int n;
for (n = 0; n < barcodelen && (barcode[n] == ' ' || isdigit(barcode[n]) || isupper(barcode[n])); n++);
if (n < barcodelen)
errx(1, "Has invalid characters for a stamp\n");
else
{ // Generate simplistic encoding rules as used by the windows app
// TBA - does not always match the windows app...
n = 0;
encoding = safemalloc(barcodelen + 1);
while (n < barcodelen)
{
// ASCII
while (1)
{
if (n == barcodelen || (n + 3 <= barcodelen && (!isdigit(barcode[n]) || !isdigit(barcode[n + 1]))))
break;
encoding[n++] = 'A';
if (n < barcodelen && isdigit(barcode[n - 1]) && isdigit(barcode[n]))
encoding[n++] = 'A';
}
// C40
while (1)
{
int r = 0;
while (n + r < barcodelen && isdigit(barcode[n + r]))
r++;
if (n + 3 > barcodelen || r >= 6)
break;
encoding[n++] = 'C';
encoding[n++] = 'C';
encoding[n++] = 'C';
}
}
encoding[n] = 0;
}
}
}
// processing stamps
if ((W & 1) || ecc < 200)
errx(1, "Not done odd sizes yet, sorry\n");
else
grid = iec16022ecc200(&W, &H, &encoding, barcodelen, (unsigned char *) barcode, &len, &maxlen, &ecclen, square: square, noquiet:noquiet);
// output
if (tolower(*format) != 'i' && (!grid || !W))
errx(1, "No barcode produced\n");
switch (tolower(*format))
{
case 'x': // Size in pixels including quite border
if (square)
printf("%d", W); // unless specifically requested square, print two fields
else
printf("%d %d", W, H);
break;
case 'i': // info
printf("Size : %dx%d\n", W, H);
printf("Encoded : %d of %d bytes with %d bytes of ecc\n", len, maxlen, ecclen);
printf("Barcode : %s\n", barcode);
printf("Encoding: %s\n", encoding ? : "");
break;
case 'h': // hex
dumphex(grid, W, H, 0, S, 0);
break;
case 'b': // bin
{
int y;
for (y = 0; y < H * S; y++)
{
int v = 0,
x,
b = 128;
for (x = 0; x < W * S; x++)
{
if (grid[(y / S) * W + (x / S)])
v |= b;
b >>= 1;
if (!b)
{
putchar(v);
v = 0;
b = 128;
}
}
if (b != 128)
putchar(v);
}
}
break;
case 't': // text
{
int y;
for (y = 0; y < H * S; y++)
{
int x;
for (x = 0; x < (W * S); x++)
printf("%s", y < H * S && y >= 0 && x < W * S && x >= 0 && grid[W * (y / S) + (x / S)] ? " " : "█");
printf("\n");
}
}
break;
case 'e': // EPS
printf("%%!PS-Adobe-3.0 EPSF-3.0\n" "%%%%Creator: IEC18004 barcode/stamp generator\n" "%%%%BarcodeData: %s\n"
"%%%%BarcodeSize: %dx%d\n" "%%%%DocumentData: Clean7Bit\n" "%%%%LanguageLevel: 1\n" "%%%%Pages: 1\n" "%%%%BoundingBox: 0 0 %d %d\n" "%%%%EndComments\n" "%%%%Page: 1 1\n", barcode, W * S, H * S, (int) ((double) W * (scale * 72 / 25.4 ? : S) + .99), (int) ((double) H * (scale * 72 / 25.4 ? : S) + 0.99));
case 'g': // PS
if (scale)
printf("%.4f dup scale ", (scale * 72 / 25.4 / S));
printf("%d %d 1[1 0 0 1 0 0]{<\n", W * S, H * S);
dumphex(grid, W, H, 0xFF, S, 0);
printf(">}image\n");
break;
case 's': // Stamp
{
char temp[74],
c;
time_t now;
struct tm t = {
0
};
int v;
if (barcodelen < 74)
errx(1, "Does not look like a stamp barcode\n");
memmove(temp, barcode, 74);
c = temp[5];
temp[56] = 0;
t.tm_year = atoi(temp + 54) + 100;
t.tm_mday = 1;
now = mktime(&t);
temp[54] = 0;
now += 86400 * (atoi(temp + 51) - 1);
t = *gmtime(&now);
temp[46] = 0;
v = atoi(temp + 36);
printf("%%!PS-Adobe-3.0 EPSF-3.0\n" "%%%%Creator: IEC16022 barcode/stamp generator\n" "%%%%BarcodeData: %s\n"
"%%%%BarcodeSize: %dx%d\n" "%%%%DocumentData: Clean7Bit\n" "%%%%LanguageLevel: 1\n"
"%%%%Pages: 1\n" "%%%%BoundingBox: 0 0 190 80\n" "%%%%EndComments\n" "%%%%Page: 1 1\n"
"save 10 dict begin/f{findfont exch scalefont setfont}bind def/rm/rmoveto load def/m/moveto load def/rl/rlineto load def\n"
"/l/lineto load def/cp/closepath load def/c{dup stringwidth pop -2 div 0 rmoveto show}bind def\n" "72 25.4 div dup scale 0 0 m 67 0 rl 0 28 rl -67 0 rl cp clip 1 setgray fill 0 setgray 0.5 0 translate 0.3 setlinewidth\n" "%d %d 1[1 0 0 1 0 -11]{<\n", barcode, W, H, W, H);
dumphex(grid, W, H, 0xFF, 1, 0);
printf(">}image\n" "3.25/Helvetica-Bold f 8 25.3 m(\\243%d.%02d)c\n" "2.6/Helvetica f 8 22.3 m(%.4s %.4s)c\n" "1.5/Helvetica f 8 3.3 m(POST BY)c\n" "3.3/Helvetica f 8 0.25 m(%02d.%02d.%02d)c\n", v / 100, v % 100, temp + 6, temp + 10, t.tm_mday, t.tm_mon + 1, t.tm_year % 100);
if (c == '1' || c == '2' || c == 'A' || c == 'S')
{
if (c == '2')
printf("42 0 m 10 0 rl 0 28 rl -10 0 rl cp 57 0 m 5 0 rl 0 28 rl -5 0 rl cp");
else
printf("42 0 m 5 0 rl 0 28 rl -5 0 rl cp 52 0 m 10 0 rl 0 28 rl -10 0 rl cp");
printf(" 21 0 m 16 0 rl 0 28 rl -16 0 rl cp fill\n" "21.3 0.3 m 15.4 0 rl 0 13 rl -15.4 0 rl cp 1 setgray fill gsave 21.3 0.3 15.4 27.4 rectclip newpath\n");
switch (c)
{
case '1':
printf("27/Helvetica-Bold f 27 8.7 m(1)show grestore 0 setgray 1.5/Helvetica-Bold f 22 3.3 m(POSTAGE PAID GB)show 1.7/Helvetica f 29 1.5 m(SmartStamp.co.uk)c\n");
break;
case '2':
printf("21/Helvetica-Bold f 23.5 13 m(2)1.25 1 scale show grestore 0 setgray 1.5/Helvetica-Bold f 22 3.3 m(POSTAGE PAID GB)show 1.7/Helvetica f 29 1.5 m(SmartStamp.co.uk)c\n");
break;
case 'A':
printf("16/Helvetica-Bold f 29 14.75 m 1.1 1 scale(A)c grestore 0 setgray 1.5/Helvetica-Bold f 22 3.3 m(POSTAGE PAID GB)show 1.7/Helvetica f 22 1.5 m(Par Avion)show\n");
break;
case 'S':
printf("10/Helvetica-Bold f 29 17 m(SU)c grestore 0 setgray 1.5/Helvetica-Bold f 22 1.5 m(POSTAGE PAID GB)show\n");
break;
}
printf("2.3/Helvetica-Bold f 29 10 m(ROYAL MAIL)c\n");
} else if (c == 'P')
{ // Standard Parcels
printf("21 0 m 41 0 rl 0 28 rl -41 0 rl cp fill\n"
"37.7 0.3 m 24 0 rl 0 27.4 rl -24 0 rl cp 1 setgray fill gsave 21.3 0.3 16.4 27.4 rectclip newpath\n"
"22.5/Helvetica-Bold f 37.75 -1.25 m 90 rotate(SP)show grestore 0 setgray\n" "3.5/Helvetica-Bold f 49.7 21.5 m(ROYAL MAIL)c\n" "2.3/Helvetica-Bold f 49.7 7 m(POSTAGE PAID GB)c\n" "2.6/Helveica f 49.7 4.25 m(SmartStamp.co.uk)c\n");
} else if (c == '3' || c == '9')
printf("21.15 0.15 40.7 27.7 rectstroke\n"
"21 0 m 41 0 rl 0 5 rl -41 0 rl cp fill\n"
"0 1 2{0 1 18{dup 1.525 mul 22.9 add 24 3 index 1.525 mul add 3 -1 roll 9 add 29 div 0 360 arc fill}for pop}for\n"
"50.5 23.07 m 11.5 0 rl 0 5 rl -11.5 0 rl cp fill\n"
"5.85/Helvetica f 23.7 15.6 m(Royal Mail)show\n"
"4.75/Helvetica-Bold f 24 11 m(special)show 4.9/Helvetica f(delivery)show\n" "gsave 1 setgray 3.2/Helvetica-Bold f 24 1.6 m(%s)show 26 10.15 m 2 0 rl stroke grestore\n" "21.15 9.9 m 53.8 9.9 l stroke 53.8 9.9 0.4 0 360 arc fill\n", c == '3' ? "next day" : "9.00am");
printf("end restore\n");
}
break;
case 'v': // svg
{
int x,
y;
Image *i;
i = ImageNew(W, H, 2);
i->Colour[0] = 0xFFFFFF;
i->Colour[1] = 0;
for (y = 0; y < H; y++)
for (x = 0; x < W; x++)
if (grid[y * W + x] & 1)
ImagePixel(i, x, y) = 1;
if (isupper(*format))
ImageSVGPath(i, stdout, 1);
else
ImageWriteSVG(i, stdout, 0, -1, barcode, scale);
ImageFree(i);
}
break;
case 'd': // data: URI
case 'p': // png
{
int x,
y;
Image *i = ImageNew(W * S, H * S, 2);
i->Colour[0] = 0xFFFFFF;
i->Colour[1] = 0;
for (y = 0; y < H * S; y++)
for (x = 0; x < W * S; x++)
if (grid[(y / S) * W + (x / S)])
ImagePixel(i, x, y) = 1;
if (*format == 'd')
{
char *buf;
size_t len;
FILE *f = open_memstream(&buf, &len);
ImageWritePNG(i, f, 0, -1, barcode);
fclose(f);
printf("data:image/png;base64,");
static const char BASE64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
int b = 0,
v = 0,
i = 0;
while (i < len)
{
unsigned char c = buf[i++];
b += 8;
v = (v << 8) | c;
while (b >= 6)
{
b -= 6;
putchar(BASE64[(v >> b) & 0x3F]);
}
}
if (b)
{
b += 8;
v = (v << 8);
b -= 6;
putchar(BASE64[(v >> b) & 0x3F]);
}
while (b)
{
if (b < 6)
b += 8;
b -= 6;
putchar('=');
}
free(buf);
} else
ImageWritePNG(i, stdout, 0, -1, barcode);
ImageFree(i);
}
break;
default:
errx(1, "Unknown output format %s\n", format);
break;
}
free(encoding);
free(grid);
return 0;
}