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foo2zjs/hbpldecode.c
Koen Kooi 66819e6d05 import 'Tarball last modified: Fri Jan 22 05:14:24 2016 CST' 
Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
2016-01-25 16:22:04 +01:00

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/*
* $Id: hbpldecode.c,v 1.66 2014/09/25 14:28:15 rick Exp $
*/
/*b
* Copyright (C) 2011-2014
*
* 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 2 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* Authors: Rick Richardson <rick.richardson@comcast.net>
* Peter Korf <peter@niendo.de> (HBPL version 2)
* Dave Coffin <dcoffin@cybercom.net> (HBPL version 1)
b*/
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include "jbig.h"
/*
* Global option flags
*/
int Debug = 0;
char *RawFile;
char *DecFile;
int PrintOffset = 0;
int PrintHexOffset = 0;
void
debug(int level, char *fmt, ...)
{
va_list ap;
if (Debug < level)
return;
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
}
int
error(int fatal, char *fmt, ...)
{
va_list ap;
fprintf(stderr, fatal ? "Error: " : "Warning: ");
if (errno)
fprintf(stderr, "%s: ", strerror(errno));
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
if (fatal > 0)
exit(fatal);
else
{
errno = 0;
return (fatal);
}
}
void
usage(void)
{
fprintf(stderr,
"Usage:\n"
" hbpldecode [options] < hbpl-file\n"
"\n"
" Decode a HBPL stream into human readable form. HBPL is\n"
" Host Based Printer Language.\n"
"\n"
" There are two versions of HBPL in existence.\n"
"\n"
" Version one is an HBPL stream with Huffman RLE data. This data is\n"
" used by the Dell 1250c, Dell C1660w, Epson AcuLaser C1700, Fuji-Xerox\n"
" cp105b, and similar printers. These printers are supported by\n"
" foo2hbpl1-wrapper et al.\n"
"\n"
" Version two is an HBPL stream with JBIG encoded data. This data\n"
" is used by the Xerox WorkCentre 6015, Fuji Xerox Docuprint CM205\n"
" Dell 1355c, and similar printers. These printers are supported by\n"
" foo2hbpl2-wrapper et al.\n"
"\n"
" Both versions can be decoded by hbpldecode.\n"
"\n"
"Options:\n"
" -d basename Basename of .pbm file for saving decompressed planes\n"
" -r basename Basename of .jbg file for saving raw planes\n"
" -o Print file offsets\n"
" -h Print hex file offsets\n"
" -D lvl Set Debug level [%d]\n"
, Debug
);
exit(1);
}
/*
* Hexdump stream data
*/
void
hexdump(FILE *fp, int decmode, char *lbl1, char *lbln, \
const void *vdata, int length)
{
int s;
int i;
int n;
unsigned char c;
unsigned char buf[16];
const unsigned char *data = vdata;
if (length == 0)
{
fprintf(fp, "%s [length 0]\n", lbl1);
return;
}
for (s = 0; s < length; s += 16)
{
fprintf(fp, "%s", s ? lbln : lbl1);
fprintf(fp, decmode ? "%8d:" : "%08x:", s);
n = length - s; if (n > 16) n = 16;
for (i = 0; i < 16; ++i)
{
if (i == 8)
fprintf(fp, " ");
if (i < n)
fprintf(fp, decmode ? " %3d" : " %02x",
buf[i] = data[s+i]);
else
fprintf(fp, " ");
}
if (!decmode)
{
fprintf(fp, " ");
for (i = 0; i < n; ++i)
{
if (i == 8)
fprintf(fp, " ");
c = buf[i];
if (c >= ' ' && c < 0x7f)
fprintf(fp, "%c", c);
else
fprintf(fp, ".");
}
}
fprintf(fp, "\n");
}
}
static int
getLEdword(unsigned char buf[4])
{
return (buf[3] << 24) | (buf[2] << 16) | (buf[1] << 8) | (buf[0] << 0);
}
static int
getLEword(unsigned char buf[2])
{
return (buf[1] << 8) | (buf[0] << 0);
}
void
print_bih(unsigned char bih[20])
{
unsigned int xd, yd, l0;
xd = (bih[4] << 24) | (bih[5] << 16) | (bih[6] << 8) | (bih[7] << 0);
yd = (bih[8] << 24) | (bih[9] << 16) | (bih[10] << 8) | (bih[11] << 0);
l0 = (bih[12] << 24) | (bih[13] << 16) | (bih[14] << 8) | (bih[15] << 0);
printf(" DL = %d, D = %d, P = %d, - = %d, XY = %d x %d\n",
bih[0], bih[1], bih[2], bih[3], xd, yd);
printf(" L0 = %d, MX = %d, MY = %d\n",
l0, bih[16], bih[17]);
printf(" Order = %d %s%s%s%s%s\n", bih[18],
bih[18] & JBG_HITOLO ? " HITOLO" : "",
bih[18] & JBG_SEQ ? " SEQ" : "",
bih[18] & JBG_ILEAVE ? " ILEAVE" : "",
bih[18] & JBG_SMID ? " SMID" : "",
bih[18] & 0xf0 ? " other" : "");
printf(" Options = %d %s%s%s%s%s%s%s%s\n", bih[19],
bih[19] & JBG_LRLTWO ? " LRLTWO" : "",
bih[19] & JBG_VLENGTH ? " VLENGTH" : "",
bih[19] & JBG_TPDON ? " TPDON" : "",
bih[19] & JBG_TPBON ? " TPBON" : "",
bih[19] & JBG_DPON ? " DPON" : "",
bih[19] & JBG_DPPRIV ? " DPPRIV" : "",
bih[19] & JBG_DPLAST ? " DPLAST" : "",
bih[19] & 0x80 ? " other" : "");
printf(" %u stripes, %d layers, %d planes\n",
((yd >> bih[1]) + ((((1UL << bih[1]) - 1) & xd) != 0) + l0 - 1) / l0,
bih[1] - bih[0], bih[2]);
}
void
proff(int curOff)
{
if (PrintOffset)
printf("%d: ", curOff);
else if (PrintHexOffset)
printf("%6x: ", curOff);
}
/*
* Version 2 stuff
*/
void
decode_image(char *filename, int pagenum, int planenum,
unsigned char *bih, unsigned char *jbig, int jbiglen)
{
FILE *dfp;
struct jbg_dec_state s;
size_t cnt;
unsigned char *image;
char buf[512];
int rc;
if (filename == 0)
return;
jbg_dec_init(&s);
rc = jbg_dec_in(&s, bih, 20, &cnt);
if (rc == JBG_EIMPL)
error(1, "JBIG uses unimplemented feature\n");
rc = jbg_dec_in(&s, jbig, jbiglen, &cnt);
if (rc == JBG_EOK)
{
int h, w, len;
h = jbg_dec_getheight(&s);
w = jbg_dec_getwidth(&s);
image = jbg_dec_getimage(&s, 0);
len = jbg_dec_getsize(&s);
if (image)
{
sprintf(buf, "%s-%02d-%d.pbm",
filename, pagenum, planenum);
dfp = fopen(buf, "w");
if (dfp)
{
fprintf(dfp, "P4\n%8d %8d\n", w, h);
rc = fwrite(image, 1, len, dfp);
fclose(dfp);
dfp = NULL;
}
}
else
debug(0, "Missing image %dx%d!\n", h, w);
}
jbg_dec_free(&s);
}
void
decode2(FILE *fp, int curOff)
{
// int c;
int rc;
// FILE *dfp = NULL;
int pageNum = 1;
int len;
// int curOff = 0;
// struct jbg_dec_state s[5];
// unsigned char bih[4][20];
// int imageCnt[4] = {0,0,0,0};
// int pn = 0;
unsigned char header[4];
unsigned char buf[512];
int w, h, wh_total, res, color, mediatype, papersize;
int p, offbih[4];
#define STRARY(X, A) \
((X) >= 0 && (X) < sizeof(A)/sizeof(A[0])) \
? A[X] : "UNK"
char *strsize[] = {
/*00*/ "Custom", "A4", "B5", "A5", "Letter",
/*05*/ "Executive", "FanFoldGermanLegal", "Legal", "unk", "env#10",
/*10*/ "envMonarch", "envC5", "envDL", "unk", "unk",
};
char *strtype[] = {
/*00*/ "unk", "Plain", "Bond", "LwCard", "LwGCard",
/*05*/ "Labels", "Envelope", "Recycled", "Plain-side2", "Bond-side2",
/*10*/ "LwCard-side2", "LwGCard-side2", "Recycled-side2",
};
proff(curOff); printf("[hbpldecode2]\n");
for (;;)
{
len = 4;
rc = fread(header, 1, len, fp);
if (rc != len)
{
error(1, "len=%d, but EOF on file\n", len);
return;
}
proff(curOff);
if (header[1] == '%' && header[2] == '-') //end of file
len = 15;
else
{
if (header[1] == 'J' && header[2] == 'P')
len = 60; // JP doesn't have len
else
len = header[3];
printf("RECTYPE %c%c - size=%d ", header[1], header[2], len);
}
curOff += len+4;
rc = fread(buf, 1, len, fp);
if (rc != len)
{
error(1, "len=%d, but EOF on file\n", len);
return;
}
if (0) {}
else if (header[1] == '%' && header[2] == '-')
{
buf[len] = 0x00;
printf("\\033%%-%c%s", header[3], buf);
return;
}
else if (header[1] == 'J' && header[2] == 'P')
{
printf("[Job Parameters]\n");
hexdump(stdout, 0, "", "", buf, len);
hexdump(stdout, 1, "", "", buf, len);
printf("\t\tsize/source(?) = %d(0x%02x)\n", buf[11], buf[11]);
}
else if (header[1] == 'D' && header[2] == 'M')
{
printf("[DM]\n");
hexdump(stdout, 0, "", "", buf, len);
}
else if (header[1] == 'P' && header[2] == 'S')
{
unsigned char *mbuf;
printf("[Page Start]\n");
if (Debug)
hexdump(stdout, 0, "", "", buf, len);
w = getLEdword(&buf[0]);
h = getLEdword(&buf[4]);
wh_total = getLEdword(&buf[8]);
res = getLEword(&buf[20]);
papersize = buf[16];
mediatype = buf[17];
color = buf[18];
printf("\t\tw,h = %dx%d, wh_total = %d, res = %d, color = %d\n",
w, h, wh_total, res, color);
printf("\t\tmediatype = %s(%d), papersize = %s(%d)\n",
STRARY(mediatype, strtype), mediatype,
STRARY(papersize, strsize), papersize);
for (p = 0; p < 4; ++p)
{
// offsets at 26, 30, 34, 38
offbih[p] = getLEdword(&buf[22 + p*4]);
printf("\t\toffbih[%d] = %d (0x%x)\n", p, offbih[p], offbih[p]);
}
len = getLEdword(&buf[12]);
mbuf = malloc(len);
if (!mbuf)
error(1, "malloc on mbuf, size=%d failed\n", len);
rc = fread(mbuf, 1, len, fp);
if (rc != len)
{
error(1, "len=%d, but EOF on file\n");
}
if (Debug > 2) hexdump(stdout, 0, "", "", mbuf, len);
if (color == 1)
{
proff(curOff);
printf("Yellow BIH:\n");
print_bih(mbuf);
printf("\t\t... %d(0x%x) of yellow data skipped...\n",
offbih[0]-20, offbih[0]-20);
decode_image(DecFile, pageNum, 3,
mbuf, mbuf+20, offbih[0]-20);
proff(curOff + offbih[0]);
printf("Magenta BIH:\n");
print_bih(mbuf + offbih[0]);
printf("\t\t... %d(0x%x) of magenta data skipped...\n",
offbih[1]-20, offbih[1]-20);
decode_image(DecFile, pageNum, 2,
mbuf, mbuf+20+offbih[0], offbih[1]-20);
proff(curOff + offbih[0] + offbih[1]);
printf("Cyan BIH:\n");
print_bih(mbuf + offbih[0] + offbih[1]);
printf("\t\t... %d(0x%x) of cyan data skipped...\n",
offbih[2]-20, offbih[2]-20);
decode_image(DecFile, pageNum, 1,
mbuf, mbuf+20+offbih[0]+offbih[1], offbih[2]-20);
proff(curOff + offbih[0] + offbih[1] + offbih[2]);
printf("Black BIH:\n");
print_bih(mbuf + offbih[0] + offbih[1] + offbih[2]);
printf("\t\t... %d(0x%x) of black data skipped...\n",
offbih[3]-20, offbih[3]-20);
decode_image(DecFile, pageNum, 4,
mbuf, mbuf+20+offbih[0]+offbih[1]+offbih[2], offbih[3]-20);
}
else
{
proff(curOff);
printf("Black BIH:\n");
// hexdump(stdout, 0, "", "", &bih[0], 20);
print_bih(mbuf);
printf("\t\t... %d(0x%x) of black data skipped...\n",
offbih[3]-20, offbih[3]-20);
decode_image(DecFile, pageNum, 0, mbuf, mbuf+20, offbih[3]-20);
}
free(mbuf);
curOff += len;
++pageNum;
}
else if (header[1] == 'P' && header[2] == 'E')
{
printf("[Page End]\n");
hexdump(stdout, 0, "", "", buf, len);
}
else
{
printf("[Unknown]\n");
hexdump(stdout, 0, "", "", buf, len);
}
}
}
/*
* Version 1 stuff
*/
unsigned short
get2(FILE *fp)
{
unsigned char buf[2];
if (fread (buf, 2, 1, fp))
return getLEword (buf);
return 0xffff;
}
unsigned
get4(FILE *fp)
{
unsigned char buf[4];
if (fread (buf, 4, 1, fp))
return getLEdword(buf);
return 0xffffffff;
}
typedef struct stream
{
unsigned char *p;
unsigned buf, bits;
} STREAM;
unsigned int
getbits(STREAM *s, int nbits)
{
while (s->bits < nbits)
{
s->buf = (s->buf << 8) + *s->p++;
s->bits += 8;
}
s->bits -= nbits;
return s->buf << (32-s->bits-nbits) >> (32-nbits);
}
char
gethuff(STREAM *s, const char *huff)
{
int i;
i = getbits(s,huff[0]) * 2;
s->bits += huff[0] - huff[i+2];
return huff[i+1];
}
/*
Runlengths are integers between 1 and 17057 encoded as follows:
1 00
2 010
3 011
4 100 0
5 100 1
6 101 00
7 101 01
8 101 10
9 101 11
10 110 0000
11 110 0001
12 110 0010
...
25 110 1111
26 111 000 000
27 111 000 001
28 111 000 010
29 111 000 011
...
33 111 000 111
34 111 001 000
...
41 111 001 111
42 111 010 000
50 111 011 0000
66 111 100 00000
98 111 101 000000
162 111 110 000000000
674 111 111 00000000000000
17057 111 111 11111111111111
*/
unsigned int
get_len(STREAM *s)
{
const short code[] = { 3,3,3,4,5,6,9,14,26,34,42,50,66,98,162,674 };
int i;
switch (getbits(s,3))
{
case 0:
case 1: s->bits++;
return 1;
case 2: return 2;
case 3: return 3;
case 4: return 4 + getbits(s,1);
case 5: return 6 + getbits(s,2);
case 6: return 10 + getbits(s,4);
}
i = getbits(s,3);
return code[8+i] + getbits(s,code[i]);
}
/*
CMYK byte differences are encoded as follows:
0 000
+1 001
-1 010
2 011s0 s = 0 for +, 1 for -
3 011s1
4 100s00
5 100s01
6 100s10
7 100s11
8 101s000
9 101s001
...
14 101s110
15 101s111
16 110s00000
17 110s00001
18 110s00010
...
46 110s11110
47 110s11111
48 1110s00000
49 1110s00001
...
78 1110s11110
79 1110s11111
80 1111s000000
81 1111s000001
...
126 1111s101110
127 1111s101111
128 11111110000
*/
signed char
get_diff(STREAM *s)
{
const short code[] = { 1,2,3,5,5,6,2,4,8,16,48,80 };
int i, sign;
switch (i = getbits(s, 3))
{
case 0: return 0;
case 1: return 1;
case 2: return -1;
case 7: i += getbits(s, 1);
}
sign = getbits(s, 1);
i = code[i+3] + getbits(s, code[i-3]);
return sign ? -i:i;
}
void
decode1(FILE *fp, int ilen, int page, int color, int width, int height)
{
static const char huff[2][68] =
{
{
5,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,
0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,
5,2,5,2,5,2,5,2,5,2,5,2,5,2,5,2,
1,3,1,3,1,3,1,3,2,5,3,5,4,5,6,5
},
{
5,5,1,5,1,5,1,5,1,5,1,5,1,5,1,5,1,
5,1,5,1,5,1,5,1,5,1,5,1,5,1,5,1,
0,2,0,2,0,2,0,2,0,2,0,2,0,2,0,2,
1,3,1,3,1,3,1,3,2,5,3,5,4,5,6,5
},
};
unsigned char *in, *stop;
struct stream stream[5];
int size, hsel = 0, bit = 0, token, raw, dir, run, r, s;
int off = 0, row, col;
union { int i; unsigned char c[4]; } *kcmy = NULL;
char name[512], (*rgb)[3], rotor[]="01234";
int dirs[] = { -1, 0, -1, 1, 2 };
FILE *dfp;
if (!(in = malloc (ilen))) return;
r = fread (in, 1, ilen, fp);
if (!DecFile)
{
free (in);
printf ("Page %d image found -- use \"-d basename\" to decode\n", page);
return;
}
size = width * (height+2) * 4;
if (!size || size / width / (height+2) != 4 || !(kcmy = malloc (size)))
{
free (in);
error (1, "Invalid dimensions for HBPLv1\n");
}
sprintf (name, "%s-%02d.p%cm", DecFile, page, color ? 'p':'g');
printf ("Decoding page %d to %s ...\n", page, name);
memset (stream, 0, sizeof stream);
stream[0].p = in+48;
for (s = 0; s < 4; s++)
stream[s+1].p = stream[s].p + getLEdword (in+32+s*4);
stop = stream[1].p;
for (r = 1; r < 5; r++)
dirs[r] -= width;
if (!color) dirs[4] = -8;
memset (kcmy, -color, size);
rgb = (void *) kcmy;
kcmy += width+1;
while (stream[0].p < stop && off < height * width)
{
token = gethuff (stream, huff[hsel]);
switch (token)
{
case 6:
hsel = !hsel;
getbits (stream, 1);
break;
case 5:
for (s = 0; s <= color*3; s++)
kcmy[off].c[s] = kcmy[off-1].c[s] + get_diff (stream+1+s);
off++;
bit = 0;
break;
default:
run = get_len (stream);
raw = token + bit;
dir = dirs[rotor[raw]-'0'];
bit = (run < 17057);
while (run--)
{
kcmy[off].i = kcmy[off+dir].i;
off++;
}
if (raw)
{
s = rotor[raw];
for (r = raw; r; r--)
rotor[r] = rotor[r-1];
rotor[0] = s;
}
break;
}
}
free (in);
if (!(dfp = fopen (name, "w")))
error (1, name);
fprintf (dfp, "P%d %d %d 255\n", 5+color, width, height);
for (off = row = 0; row < height; row++)
{
for (col = 0; col < width; col++)
{
if (color)
for (s = 0; s < 3; s++)
rgb[col][s] = (kcmy[off].c[0]^255) *
(kcmy[off].c[s+1]^255) / 255;
else
rgb[0][col] = kcmy[off].c[0]^255;
off++;
}
fwrite (rgb, color*2+1, width, dfp);
}
fclose (dfp);
free (rgb);
}
int
parse1(FILE *fp, int *curOff)
{
int rectype, stoptype, type, subtype;
int val[2] = { 0,0 }, page = 0, color = 0, width = 0, height = 0;
int i;
char *strsize[256] = {
/*00*/ "Letter", "Legal", "A4", "Executive", "unk",
/*05*/ "unk", "env#10", "envMonarch", "envC5", "envDL",
/*10*/ "unk", "B5", "unk", "unk", "unk",
/*15*/ "A5", "unk", "unk", "unk", "unk",
};
// 205 == "folio", Sheesh
for (i = 0; i < 256; ++i)
if (strsize[i] == NULL)
strsize[i] = "Custom";
strsize[205] = "folio"; // 8.5x13
proff(*curOff); printf("[hbpldecode1]\n");
while ((proff(*curOff), (*curOff)++, rectype = fgetc(fp)) != EOF)
{
printf("RECTYPE '%c' [0x%x]:\n", rectype, rectype);
stoptype = 0;
switch (rectype)
{
case 0x41: stoptype = 0x83; break;
case 0x43: stoptype = 0xA2; break;
case 0x52: stoptype = 0xA4; break;
case 0x20:
case 0x51:
case 0x53:
case 0x44: break;
case 0x42: return 0;
default:
(*curOff)--;
ungetc (rectype, fp);
printf ("Unknown rectype 0x%x at 0x%x(%d)\n",
rectype, *curOff, *curOff);
return 1;
}
if (!stoptype) continue;
do
{
type = fgetc(fp);
(*curOff)++;
again: switch ((*curOff)++, subtype = fgetc(fp))
{
case 0xa1: val[0] = fgetc(fp); (*curOff)++; break;
case 0xc2: val[1] = get2(fp); *curOff += 2;
case 0xa2: val[0] = get2(fp); *curOff += 2; break;
case 0xc4: val[1] = get4(fp); *curOff += 4;
case 0xc3:
case 0xa4: val[0] = get4(fp); *curOff += 4; break;
case 0xb1: goto again;
default: error (1, "Unknown subtype 0x%02x\n", subtype);
}
proff(*curOff);
printf(" %x %x: ", type, subtype);
switch (type)
{
case 0x94:
printf("%d [paper=%s]\n", val[0], STRARY(val[0], strsize));
break;
case 0x95:
printf("%dx%d%s\n", val[1], val[0],
val[0] ? " [WxH in 0.1mm units]":"");
break;
case 0x99:
printf("%d [page]\n", val[0]);
page = val[0];
break;
case 0x9d:
printf("0x%x [%s]\n", val[0], val[0] == 9 ? "Mono" : "Color");
color = val[0] != 9;
break;
case 0x9a:
case 0xa2:
printf("%dx%d (0x%x x 0x%x) [WxH]\n",
val[1], val[0], val[1], val[0]);
width = val[1];
height = val[0];
break;
case 0xa4:
printf("%d (0x%x) bytes of data...\n", val[0], val[0]);
decode1 (fp, val[0], page, color, width, height);
*curOff += val[0];
break;
default:
printf("0x%x\n", val[0]);
}
} while (type != stoptype);
}
return 0;
}
void
decode(FILE *fp)
{
int c;
// int rc;
// FILE *dfp = NULL;
// int pageNum = 1;
int len;
int curOff = 0;
//struct jbg_dec_state s[5];
// unsigned char bih[4][20];
// int imageCnt[4] = {0,0,0,0};
// int pn = 0;
char buf[70000];
c = getc(fp);
if (c == EOF)
{
printf("EOF on file\n");
return;
}
ungetc(c, fp);
if (c == '\033')
{
while (fgets(buf, sizeof(buf), fp))
{
proff(curOff);
if (buf[0] == '\033')
{
printf("\\033");
fputs(buf+1, stdout);
}
else
fputs(buf, stdout);
curOff += strlen(buf);
if ((strcmp(buf, "@PJL ENTER LANGUAGE=HBPL\r\n") == 0)
|| (strcmp(buf, "@PJL ENTER LANGUAGE=HBPL\n") == 0))
break;
}
}
c = getc(fp);
ungetc(c, fp);
if (c == 0x1b)
{
// Decode version 2, ESC based
decode2(fp, curOff);
goto done;
}
if (parse1 (fp, &curOff))
{
printf ("Continuing with hexdump...\n");
if ( (len = fread(buf, 1, sizeof(buf), fp)) )
hexdump (stdout, 0, "", "", buf, len);
exit(1);
}
done:
c = fgetc(fp);
if (c != 033)
return;
ungetc(c, fp);
while (fgets(buf, sizeof(buf), fp))
{
proff(curOff);
if (buf[0] == '\033')
{
printf("\\033");
fputs(buf+1, stdout);
}
else
fputs(buf, stdout);
curOff += strlen(buf);
if (strcmp(buf, "@PJL ENTER LANGUAGE=HBPL\n") == 0)
break;
}
printf("\n");
}
int
main(int argc, char *argv[])
{
extern int optind;
extern char *optarg;
int c;
while ( (c = getopt(argc, argv, "d:hor:D:?h")) != EOF)
switch (c)
{
case 'd': DecFile = optarg; break;
case 'r': RawFile = optarg; break;
case 'o': PrintOffset = 1; break;
case 'h': PrintHexOffset = 1; break;
case 'D': Debug = atoi(optarg); break;
default: usage(); exit(1);
}
argc -= optind;
argv += optind;
if (argc > 0)
{
FILE *fp;
fp = fopen(argv[0], "r");
if (!fp)
error(1, "file '%s' doesn't exist\n", argv[0]);
decode(fp);
fclose(fp);
}
else
decode(stdin);
exit(0);
}
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