File: print.c

package info (click to toggle)
radare2 0.9.6-3.1%2Bdeb8u1
  • links: PTS, VCS
  • area: main
  • in suites: jessie
  • size: 17,496 kB
  • ctags: 45,959
  • sloc: ansic: 240,999; sh: 3,645; makefile: 2,520; python: 1,212; asm: 312; ruby: 214; awk: 209; perl: 188; lisp: 169; java: 23; xml: 17; php: 6
file content (739 lines) | stat: -rw-r--r-- 19,904 bytes parent folder | download | duplicates (2)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
/* radare - LGPL - Copyright 2007-2013 - pancake */

#include "r_cons.h"
#include "r_print.h"
#include "r_util.h"

static int nullprinter(const char* a, ...) { return 0; }

R_API int r_print_mute(RPrint *p, int x) {
	if (x) {
		if (p->printf == &nullprinter)
			return 0;
		p->oprintf = p->printf;
		p->printf = nullprinter;
		return 1;
	}
	if (p->printf == nullprinter) {
		p->printf = p->oprintf;
		return 1;
	}
	return 0;
}

R_API RPrint *r_print_new() {
	RPrint *p = R_NEW (RPrint);
	if (!p) return NULL;
	strcpy (p->datefmt, "%d:%m:%Y %H:%M:%S %z");
	p->user = NULL;
	r_io_bind_init (p->iob);
	p->user = NULL;
	p->disasm = NULL;
	p->printf = printf;
	p->oprintf = nullprinter;
	p->bits = 32;
	p->stride = 0;
	p->interrupt = 0;
	p->big_endian = CPU_ENDIAN;
	p->col = 0;
	p->width = 78;
	p->cols = 16;
	p->cur_enabled = R_FALSE;
	p->cur = p->ocur = -1;
	p->formats = r_strht_new ();
	p->addrmod = 4;
	p->flags = \
		   R_PRINT_FLAGS_COLOR |
		   R_PRINT_FLAGS_HEADER |
		   R_PRINT_FLAGS_ADDRMOD;
	p->zoom = R_NEW0 (RPrintZoom);
	return p;
}

R_API RPrint *r_print_free(RPrint *p) {
	if (!p) return NULL;
	r_strht_free (p->formats);
	p->formats = NULL;
	if (p->zoom) {
		free (p->zoom->buf);
		free (p->zoom);
		p->zoom = NULL;
	}
	free (p);
	return NULL;
}

// dummy setter can be removed
R_API void r_print_set_flags(RPrint *p, int _flags) {
	p->flags = _flags;
}

R_API void r_print_unset_flags(RPrint *p, int flags) {
	p->flags = p->flags & (p->flags^flags);
}

R_API void r_print_set_cursor(RPrint *p, int enable, int ocursor, int cursor) {
	p->cur_enabled = enable;
	p->ocur = ocursor;
	if (cursor<0) cursor = 0;
	p->cur = cursor;
}

R_API void r_print_cursor(RPrint *p, int cur, int set) {
	if (!p->cur_enabled)
		return;
	if (p->ocur != -1) {
		int from = p->ocur;
		int to = p->cur;
		r_num_minmax_swap_i (&from, &to);
		if (cur>=from && cur<=to)
			p->printf ("%s", R_CONS_INVERT (set, 1)); //r_cons_invert (set, 1); //p->flags&R_PRINT_FLAGS_COLOR);
	} else
	if (cur==p->cur)
		p->printf ("%s", R_CONS_INVERT (set, 1)); //r_cons_invert (set, 1); //p->flags&R_PRINT_FLAGS_COLOR);
}

#define P(x) (p->cons &&p->cons->pal.x)?p->cons->pal.x
R_API void r_print_addr(RPrint *p, ut64 addr) {
	int mod = p->flags & R_PRINT_FLAGS_ADDRMOD;
	char ch = (p->addrmod&&mod)?((addr%p->addrmod)?' ':','):' ';
	if (p->flags & R_PRINT_FLAGS_SEGOFF) {
		ut32 s, a;
		a = addr & 0xffff;
		s = (addr-a)>>4;
		if (p->flags & R_PRINT_FLAGS_COLOR) {
			const char *pre = P(offset): Color_GREEN;
			const char *fin = Color_RESET;
			p->printf ("%s%04x:%04x%c%s", pre, s & 0xffff, a & 0xffff, ch, fin);
		} else p->printf ("%04x:%04x%c", s & 0xffff, a & 0xffff, ch);
	} else {
		if (p->flags & R_PRINT_FLAGS_COLOR) {
			const char *pre = P(offset): Color_GREEN;
			const char *fin = Color_RESET;
			p->printf ("%s0x%08"PFMT64x"%c%s", pre, addr, ch, fin);
		} else p->printf ("0x%08"PFMT64x"%c", addr, ch);
	}
}

#define CURDBG 0
// XXX: redesign ? :)
R_API char *r_print_hexpair(RPrint *p, const char *str, int n) {
	const char *s, *lastcol = Color_WHITE;
	char *d, *dst = (char *)malloc ((strlen (str)+2)*32);
	int colors = p->flags & R_PRINT_FLAGS_COLOR;
	const char *color_0x00, *color_0x7f, *color_0xff, *color_text, *color_other;
	/* XXX That's hacky as shit.. but partially works O:) */
	/* TODO: Use r_print_set_cursor for win support */
	int cur = R_MIN (p->cur, p->ocur);
	int ocur = R_MAX (p->cur, p->ocur);
	int ch, i;

	if (colors) {
#define P(x) (p->cons &&p->cons->pal.x)?p->cons->pal.x
		color_0x00 = P(b0x00): Color_GREEN;
		color_0x7f = P(b0x7f): Color_YELLOW;
		color_0xff = P(b0xff): Color_RED;
		color_text = P(btext): Color_MAGENTA;
		color_other = P(other): "";
	}
	if (p->cur_enabled && cur==-1)
		cur = ocur;
	ocur++;
#if CURDBG
	sprintf (dst, "(%d/%d/%d/%d)", p->cur_enabled, cur, ocur, n);
	d = dst + strlen (dst);
#else
	d = dst;
#endif
	// XXX: overflow here
// TODO: Use r_cons primitives here
#define memcat(x,y) { memcpy(x,y,strlen(y));x+=strlen(y); }
	//for (s=str, d=dst; *s; s+=2, d+=2, i++) {
	for (s=str, i=0 ; *s; s+=2, d+=2, i++) {
		if (p->cur_enabled) {
			if (i==ocur-n)
				//memcat (d, "\x1b[27;47;30m");
				//memcat (d, "\x1b[0m");//27;47;30m");
				memcat (d, "\x1b[0m");
				memcat (d, lastcol);
			if (i>=cur-n && i<ocur-n)
				memcat (d, "\x1b[7m");
		}
		if (colors) {
			if (s[0]=='0' && s[1]=='0') lastcol = color_0x00;
			else if (s[0]=='7' && s[1]=='f') lastcol = color_0x7f;
			else if (s[0]=='f' && s[1]=='f') lastcol = color_0xff;
			else {
				ch = r_hex_pair2bin (s);
				//sscanf (s, "%02x", &ch); // XXX can be optimized
				if (IS_PRINTABLE (ch))
					lastcol = color_text;
				else lastcol = color_other;
			}
			memcat (d, lastcol);
		}
		memcpy (d, s, 2);
	}
	if (colors || p->cur_enabled)
		memcpy (d, Color_RESET, strlen (Color_RESET)+1);
	else *d = 0;
	return dst;
}

R_API void r_print_byte(RPrint *p, const char *fmt, int idx, ut8 ch) {
	ut8 rch = ch;
	if (!IS_PRINTABLE (ch) && fmt[0]=='%'&&fmt[1]=='c')
		rch = '.';
	r_print_cursor (p, idx, 1);
	//if (p->flags & R_PRINT_FLAGS_CURSOR && idx == p->cur) {
	if (p->flags & R_PRINT_FLAGS_COLOR) {
#define P(x) (p->cons &&p->cons->pal.x)?p->cons->pal.x
		char *color_0x00 = P(b0x00): Color_GREEN;
		char *color_0x7f = P(b0x7f): Color_YELLOW;
		char *color_0xff = P(b0xff): Color_RED;
		char *color_text = P(btext): Color_MAGENTA;
		char *color_other = P(other): Color_WHITE;
		char *pre = NULL;
		switch (ch) {
		case 0x00: pre = color_0x00; break;
		case 0x7F: pre = color_0x7f; break;
		case 0xFF: pre = color_0xff; break;
		default:
			if (IS_PRINTABLE (ch))
				pre = color_text;
			else pre = color_other;
		}
		if (pre) p->printf (pre);
		p->printf (fmt, rch);
		if (pre) p->printf (Color_RESET);
	} else p->printf (fmt, rch);
	r_print_cursor (p, idx, 0);
}

R_API void r_print_code(RPrint *p, ut64 addr, ut8 *buf, int len, char lang) {
	int ws, i, w = p->cols*0.7;
	switch (lang) {
	case '?':
		eprintf ("Valid print code formats are: JSON, C, Python, Cstring (pcj, pc, pcp, pcs) \n"
		"  pc     C\n"
		"  pcs    string\n"
		"  pcj    json\n"
		"  pcJ    javascript\n"
		"  pcp    python\n"
		"  pcw    words (4 byte)\n"
		"  pcd    dwords (8 byte)\n");
		break;
	case 's':
		p->printf ("\"");
		for (i=0; !p->interrupt && i<len; i++) {
			p->printf ("\\x%02x", buf[i]);
		}
		p->printf ("\"\n");
		break;
	case 'J':
		{
		       ut8 *out = malloc (len*3);
		       p->printf ("var buffer = new Buffer(\"");
		       out[0] = 0;
		       r_base64_encode (out, buf, len);
		       p->printf ("%s", out);
		       p->printf ("\", 'base64').toString('binary');\n");
		       free (out);
		}
		break;
	case 'j':
		p->printf ("[");
		for (i=0; !p->interrupt && i<len; i++) {
			r_print_cursor (p, i, 1);
			p->printf ("%d%s", buf[i], (i+1<len)?",":"");
			r_print_cursor (p, i, 0);
		}
		p->printf ("]\n");
		break;
	case 'P':
	case 'p':
		p->printf ("import struct\nbuf = struct.pack (\"%dB\", ", len);
		for (i=0; !p->interrupt && i<len; i++) {
			if (!(i%w)) p->printf ("\n");
			r_print_cursor (p, i, 1);
			p->printf ("0x%02x%c", buf[i], (i+1<len)?',':')');
			r_print_cursor (p, i, 0);
		}
		p->printf ("\n");
		break;
	case 'w':
		{
		ut32 *pbuf = (ut32*)buf;
		w = 5;
		ws = 4;
		len /= ws;
		p->printf ("#define _BUFFER_SIZE %d\n", len);
		p->printf ("unsigned int buffer[%d] = {", len);
		p->interrupt = 0;
		for (i=0; !p->interrupt && i<len; i++) {
			if (!(i%w)) p->printf ("\n  ");
			r_print_cursor (p, i, 1);
			p->printf ("0x%08x, ", pbuf[i]);
			r_print_cursor (p, i, 0);
		}
		p->printf ("};\n");
		}
		break;
	case 'd':
		{
		ut64 *pbuf = (ut64*)buf;
		w = 3;
		ws = 8;
		len /= ws;
		p->printf ("#define _BUFFER_SIZE %d\n", len);
		p->printf ("unsigned long long buffer[%d] = {", len);
		p->interrupt = 0;
		for (i=0; !p->interrupt && i<len; i++) {
			if (!(i%w)) p->printf ("\n  ");
			r_print_cursor (p, i, 1);
			p->printf ("0x%016"PFMT64x", ", pbuf[i]);
			r_print_cursor (p, i, 0);
		}
		p->printf ("};\n");
		}
		break;
	default:
		p->printf ("#define _BUFFER_SIZE %d\n", len);
		p->printf ("unsigned char buffer[%d] = {", len);
		p->interrupt = 0;
		for (i=0; !p->interrupt && i<len; i++) {
			if (!(i%w))
				p->printf ("\n  ");
			r_print_cursor (p, i, 1);
			p->printf ("0x%02x, ", buf[i]);
			r_print_cursor (p, i, 0);
		}
		p->printf ("};\n");
	}
}

R_API int r_print_string(RPrint *p, ut64 seek, const ut8 *buf, int len, int options) {
	int i, wide, zeroend, urlencode;
	wide = (options & R_PRINT_STRING_WIDE);
	zeroend = (options & R_PRINT_STRING_ZEROEND);
	urlencode = (options & R_PRINT_STRING_URLENCODE);
	//if (p->flags & R_PRINT_FLAGS_OFFSET)
		// r_print_addr(p, seek);
	p->interrupt = 0;
	for (i=0; !p->interrupt && i<len; i++) {
		if (zeroend && buf[i]=='\0')
			break;
		r_print_cursor (p, i, 1);
		if (urlencode) {
			// TODO: some ascii can be bypassed here
			p->printf ("%%%02x", buf[i]);
		} else {
			if (buf[i]=='\n' || IS_PRINTABLE (buf[i]))
				p->printf ("%c", buf[i]);
			else p->printf ("\\x%02x", buf[i]);
		}
		r_print_cursor (p, i, 0);
		if (wide) i++;
	}
	p->printf ("\n");
	return i;
}

static const char hex[16] = "0123456789ABCDEF";
R_API void r_print_hexpairs(RPrint *p, ut64 addr, const ut8 *buf, int len) {
	int i;
	for (i=0; i<len; i++)
		p->printf ("%02x ", buf[i]);
}

static int check_sparse (const ut8 *p, int len, int ch) {
	int i;
	ut8 q = *p;
	if (ch && ch != q)
		return 0;
	for (i=1; i<len; i++)
		if (p[i] != q)
			return 0;
	return 1;
}

// XXX: step is borken
R_API void r_print_hexdump(RPrint *p, ut64 addr, const ut8 *buf, int len, int base, int step) {
	int i, j, k, inc;
	int sparse_char = 0;
	int use_sparse = p->flags & R_PRINT_FLAGS_SPARSE;
	const char *fmt = "%02x";
	const char *pre = "";
	int last_sparse = 0;

	if (step<1) step = 1;

	switch (base) {
	case 8: fmt = "%03o"; pre = " "; break;
	case 10: fmt = "%03d"; pre = " "; break;
	case 32: fmt = "0x%08x "; pre = " "; break;
	case 64: fmt = "0x%016x "; pre = " "; break;
	}

	// TODO: Use base to change %03o and so on
	if (p == NULL) {
		// TODO: use defaults r_print_t (static one)
		eprintf ("TODO: r_print_hexdump does not supports NULL as arg0\n");
		return;
	}

	inc = p->cols;
		
	if ((base<32) && (p->flags & R_PRINT_FLAGS_HEADER)) {
		ut32 opad = (ut32)(addr >> 32);
		{ // XXX: use r_print_addr_header
			int i, delta;
			char soff[32];
			if (p->flags & R_PRINT_FLAGS_SEGOFF) {
				ut32 s, a;
				a = addr & 0xffff;
				s = ((addr-a)>>4 ) &0xffff;
				snprintf (soff, sizeof (soff), "%04x:%04x ", s, a);
				p->printf ("- offset -");
			} else {
				p->printf ("- offset - ");
				snprintf (soff, sizeof (soff), "0x%08"PFMT64x, addr);
			}
			delta = strlen (soff) - 10;
			for (i=0; i<delta; i++)
				p->printf (i+1==delta?" ":" ");
		}
		p->printf (p->col==1?"|":" ");
		opad >>= 4;
		k = 0; // TODO: ??? SURE??? config.seek & 0xF;
		/* extra padding for offsets > 8 digits */
		for (i=0; i<inc; i++) {
			p->printf (pre);
			p->printf (" %c", hex[(i+k)%16]);
			if (i&1)
				p->printf (p->col!=1?" ":((i+1)<inc)?" ":"|");
		}
		p->printf ((p->col==2)? "|": " ");
		for (i=0; i<inc; i++)
			p->printf ("%c", hex[(i+k)%16]);
		p->printf (p->col==2?"|\n":"\n");
	}

	p->interrupt = 0;
	for (i=j=0; !p->interrupt && i<len; i+=(p->stride?p->stride:inc), j+=(p->stride?p->stride:0)) {
		if (use_sparse) {
			if (check_sparse (buf+i, inc, sparse_char)) {
				if (i+inc>=len || check_sparse (buf+i+inc, inc, sparse_char)) {
					if (i+inc+inc>=len || check_sparse (buf+i+inc+inc, inc, sparse_char)) {
						sparse_char = buf[j];
						last_sparse++;
						if (last_sparse==2) {
							p->printf (" ...\n");
							continue;
						}
						if (last_sparse>2) continue;
					}
				}
			} else last_sparse = 0;
		}
		if (p->flags & R_PRINT_FLAGS_OFFSET)
			r_print_addr (p, addr+j);
		p->printf ((p->col==1)? "|": " ");
		for (j=i; j<i+inc; j++) {
			if (j>=len) {
				if (p->col==1) {
					if (j+1>=inc+i)
						p->printf (j%2?"  |":"| ");
					else p->printf (j%2?"   ":"  ");
				} else p->printf (j%2?"   ":"  ");
				continue;
			}
			if (base==32) {
				ut32 n;
				memcpy (&n, buf+j, sizeof (n));
				r_print_cursor (p, j, 1);
				p->printf ("0x%08x ", n);
				r_print_cursor (p, j, 0);
				j += 3;
			} else
			if (base==64) {
				ut32 a, b;
				/* Prevent reading outside of buf. Necessary as inc is not
				 * a multiple of 4 for base == 64. */
				// size_t l = sizeof (n); if (j + l > len) l = len - j;
				memcpy (&a, buf+j, 4);
				memcpy (&b, buf+j+4, 4);
				r_print_cursor (p, j, 1);
				p->printf ("0x%08x%08x  ", b, a); //n<<32, n&0xffffff);
				r_print_cursor (p, j, 0);
				j += 7;
			} else {
				r_print_byte (p, fmt, j, buf[j]);
				if (j%2) {
					if (p->col==1) {
						if (j+1<inc+i)
							p->printf (" ");
						else p->printf ("|");
					} else p->printf (" ");
				}
			}
		}
		p->printf ((p->col==2)? "|":" ");
		for (j=i; j<i+inc; j++) {
			if (j >= len) p->printf (" ");
			else r_print_byte (p, "%c", j, buf[j]);
		}
		p->printf (p->col==2?"|\n":"\n");
	}
}

static const char *getbytediff (char *fmt, ut8 a, ut8 b) {
	if (a>b) sprintf (fmt, Color_GREEN"%02x"Color_RESET, a);
	else if (b>a) sprintf (fmt, Color_RED"%02x"Color_RESET, a);
	else sprintf (fmt, "%02x", a);
	return fmt;
}

static const char *getchardiff (char *fmt, ut8 a, ut8 b) {
	char ch = IS_PRINTABLE (a)? a: '.';
	if (a>b) sprintf (fmt, Color_GREEN"%c"Color_RESET, ch);
	else if (b>a) sprintf (fmt, Color_RED"%c"Color_RESET, ch);
	else { fmt[0] = ch; fmt[1]=0; }
	return fmt;
}

#define BD(a,b) getbytediff(fmt, a[i+j], b[i+j])
#define CD(a,b) getchardiff(fmt, a[i+j], b[i+j])

static ut8 *M(const ut8 *b, int len) {
	ut8 *r = malloc (len+16);
	if (!r) return NULL;
	memset (r, 0xff, len+16);
	memcpy (r, b, len);
	return r;
}

// TODO: add support for cursor
R_API void r_print_hexdiff(RPrint *p, ut64 aa, const ut8* _a, ut64 ba, const ut8 *_b, int len, int scndcol) {
	ut8 *a, *b;
	char linediff, fmt[64];
	// TODO: add non-colorized support
	int i, j;
	a = M (_a, len);
	if (!a) return;
	b = M (_b, len);
	if (!b) { free (a); return; }
	for (i =0 ; i<len; i+=16) {
		linediff = (memcmp (a+i, b+i, 16))?'!':'|';
		p->printf ("0x%08"PFMT64x" ", aa+i);
		for (j=0;j<16;j++) {
			r_print_cursor (p, i+j, 1);
			p->printf (BD (a,b));
			r_print_cursor (p, i+j, 0);
		}
		p->printf (" ");
		for (j=0;j<16;j++) {
			r_print_cursor (p, i+j, 1);
			p->printf ("%s", CD (a, b));
			r_print_cursor (p, i+j, 0);
		}
		if (scndcol) {
			p->printf (" %c 0x%08"PFMT64x" ", linediff, ba+i);
			for (j=0;j<16;j++) {
				r_print_cursor (p, i+j, 1);
				p->printf (BD (b, a));
				r_print_cursor (p, i+j, 0);
			}
			p->printf (" ");
			for (j=0;j<16;j++) {
				r_print_cursor (p, i+j, 1);
				p->printf ("%s", CD (b, a));
				r_print_cursor (p, i+j, 0);
			}
			p->printf ("\n");
		} else p->printf (" %c\n", linediff);
	}
	free (a);
	free (b);
}

R_API void r_print_bytes(RPrint *p, const ut8* buf, int len, const char *fmt) {
	int i;
	if (p) {
		for (i=0; i<len; i++)
			p->printf (fmt, buf[i]);
		p->printf ("\n");
	} else {
		for (i=0; i<len; i++)
			printf (fmt, buf[i]);
		printf ("\n");
	}
}

R_API void r_print_raw(RPrint *p, const ut8* buf, int len) {
	p->write (buf, len);
}

R_API void r_print_c(RPrint *p, const ut8 *str, int len) {
	int i;
	int inc = p->width/6;
	p->printf ("#define _BUFFER_SIZE %d\n"
		"unsigned char buffer[_BUFFER_SIZE] = {\n", len);
	p->interrupt = 0;
	for (i = 0; !p->interrupt && i < len;) {
		r_print_byte (p, "0x%02x", i, str[i]);
		if (++i<len) p->printf (", ");
		if (!(i%inc)) p->printf ("\n");
	}
	p->printf (" };\n");
}

// HACK :D
static RPrint staticp = {
	.printf = printf
};

/* TODO: handle screen width */
// TODO: use stderr here?
R_API void r_print_progressbar(RPrint *p, int pc, int _cols) {
        int i, cols = (_cols==-1)? 78: _cols;
	if (!p) p = &staticp;
        (pc<0)?pc=0:(pc>100)?pc=100:0;
        p->printf ("%4d%% [", pc);
        cols -= 15;
        for (i=cols*pc/100;i;i--) p->printf ("#");
        for (i=cols-(cols*pc/100);i;i--) p->printf ("-");
        p->printf ("]");
}

R_API void r_print_zoom (RPrint *p, void *user, RPrintZoomCallback cb, ut64 from, ut64 to, int len, int maxlen) {
	static int mode = -1;
	ut8 *bufz, *bufz2;
	int i, j = 0;
	ut64 size = (to-from);
	size = len? size/len: 0;

	bufz = bufz2 = NULL;
	if (maxlen<2) maxlen = 1024*1024;
	if (size>maxlen) size = maxlen;
	if (size<1) size = 1;
	if (len<1) len = 1;

	if (mode == p->zoom->mode && from == p->zoom->from && to == p->zoom->to && size==p->zoom->size) {
		// get from cache
		bufz = p->zoom->buf;
		size = p->zoom->size;
	} else {
		mode = p->zoom->mode;
		bufz = (ut8 *) malloc (len);
		if (bufz == NULL) return;
		bufz2 = (ut8 *) malloc (size);
		if (bufz2 == NULL) {
			free (bufz);
			return;
		}
		memset (bufz, 0, len);

		// TODO: memoize blocks or gtfo
		for (i=0; i<len; i++) {
			p->iob.read_at (p->iob.io, from+j, bufz2, size);
			bufz[i] = cb (user, p->zoom->mode, from+j, bufz2, size);
			j += size;
		}
		free (bufz2);
		// memoize
		free (p->zoom->buf);
		p->zoom->buf = bufz;
		p->zoom->from = from;
		p->zoom->to = to;
		p->zoom->size = size;
	}
	p->flags &= ~R_PRINT_FLAGS_HEADER;
	r_print_hexdump (p, from, bufz, len, 16, size);
	p->flags |= R_PRINT_FLAGS_HEADER;
}

#if 0
/* Process source file with given parameters. Output to stdout */
// TODO: use buffer instead of FILE*

----------------
        /* File processing */
        if (all)
        {
                for (i = 0 ; i <= 1 ; i++)
                {
                        for (j = 0 ; j <= 1 ; j++)
                        {
                                for (offset = 0 ; offset <= 7 ; offset++)
                                {
                                        /* Brute-force run */
                                        process (fd, length, i, j, offset);
                                }
                        }
                }
        } else
                /* Customized one pass only run */
                process (fd, length, forward, downward, offset);
----------------


void lsb_stego_process (FILE *fd, int length, bool forward, bool downward, int offset)
{
        int byte;       /* Byte index */
        int bit;        /* Bit index */
        int lsb;        /* Least Significant Bit */
        char sbyte;     /* Source byte (i.e. from src file */
        char dbyte;     /* Destination byte (decrypted msg) */


        for ( byte = offset ; byte < length ; ) {
                dbyte = 0;

                for (bit = 0; bit <= 7; bit++, byte++) {
                        /* Set position at the beginning or eof */
                        if (forward)
                                fseek(fd, byte, SEEK_SET);
                        else fseek(fd, -(byte+1), SEEK_END);

                        /* Read one byte */
                        fread(&sbyte, sizeof(sbyte), 1, fd);

                        /* Obtain Least Significant Bit */
                        lsb = sbyte & 1;

                        /* Add lsb to decrypted message */
			dbyte = dbyte | lsb << ((downward)?(7-bit):bit);
                }
                printf ("%c", dbyte);
        }
}
#endif

/// XXX: fix ascii art with different INCs
R_API void r_print_fill(RPrint *p, const ut8 *arr, int size) {
	int i = 0, j;
#define INC 5
	p->printf ("         ");
	if (arr[0]>1) for (i=0;i<arr[0]; i+=INC) p->printf ("_");
	p->printf ("\n");
	for (i=0; i<size; i++) {
		ut8 next = (i+1<size)? arr[i+1]:0;
		p->printf ("%02x %04x |", i, arr[i]);
			int base = 0;
			if (next<INC) base = 1;
		if (next<arr[i]) {
			//if (arr[i]>0 && i>0) p->printf ("  ");
			if (arr[i]>INC)
			for (j=0;j<next+base; j+=INC) p->printf (" ");
			for (j=next+INC; j+base<arr[i]; j+=INC) p->printf ("_");
		} else {
			for (j=INC; j<arr[i]+base; j+=INC) p->printf (" ");
		}
		//for (j=1;j<arr[i]; j+=INC) p->printf (under);
		p->printf ("|");
		if (arr[i+1]>arr[i])
			for (j=arr[i]+INC+base; j+base<next; j+=INC) p->printf ("_");
		p->printf ("\n");
	}
}