Contents of /trunk/mkinitrd-magellan/busybox/coreutils/od_bloaty.c
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Sat Sep 1 22:45:15 2007 UTC (17 years ago) by niro
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Sat Sep 1 22:45:15 2007 UTC (17 years ago) by niro
File MIME type: text/plain
File size: 38809 byte(s)
-import if magellan mkinitrd; it is a fork of redhats mkinitrd-5.0.8 with all magellan patches and features; deprecates magellan-src/mkinitrd
1 | /* od -- dump files in octal and other formats |
2 | Copyright (C) 92, 1995-2004 Free Software Foundation, Inc. |
3 | |
4 | This program is free software; you can redistribute it and/or modify |
5 | it under the terms of the GNU General Public License as published by |
6 | the Free Software Foundation; either version 2, or (at your option) |
7 | any later version. |
8 | |
9 | This program is distributed in the hope that it will be useful, |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
12 | GNU General Public License for more details. |
13 | |
14 | You should have received a copy of the GNU General Public License |
15 | along with this program; if not, write to the Free Software Foundation, |
16 | Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
17 | |
18 | /* Written by Jim Meyering. */ |
19 | |
20 | /* Busyboxed by Denis Vlasenko |
21 | |
22 | Based on od.c from coreutils-5.2.1 |
23 | Top bloat sources: |
24 | |
25 | 00000073 t parse_old_offset |
26 | 0000007b t get_lcm |
27 | 00000090 r long_options |
28 | 00000092 t print_named_ascii |
29 | 000000bf t print_ascii |
30 | 00000168 t write_block |
31 | 00000366 t decode_format_string |
32 | 00000a71 T od_main |
33 | |
34 | Tested for compat with coreutils 6.3 |
35 | using this script. Minor differences fixed. |
36 | |
37 | #!/bin/sh |
38 | echo STD |
39 | time /path/to/coreutils/od \ |
40 | ...params... \ |
41 | >std |
42 | echo Exit code $? |
43 | echo BBOX |
44 | time ./busybox od \ |
45 | ...params... \ |
46 | >bbox |
47 | echo Exit code $? |
48 | diff -u -a std bbox >bbox.diff || { echo Different!; sleep 1; } |
49 | |
50 | */ |
51 | |
52 | |
53 | #include "busybox.h" |
54 | #include <getopt.h> |
55 | |
56 | #define assert(a) ((void)0) |
57 | |
58 | /* Check for 0x7f is a coreutils 6.3 addition */ |
59 | #define ISPRINT(c) (((c)>=' ') && (c) != 0x7f) |
60 | |
61 | typedef long double longdouble_t; |
62 | typedef unsigned long long ulonglong_t; |
63 | typedef long long llong; |
64 | |
65 | #if ENABLE_LFS |
66 | # define xstrtooff_sfx xstrtoull_sfx |
67 | #else |
68 | # define xstrtooff_sfx xstrtoul_sfx |
69 | #endif |
70 | |
71 | /* The default number of input bytes per output line. */ |
72 | #define DEFAULT_BYTES_PER_BLOCK 16 |
73 | |
74 | /* The number of decimal digits of precision in a float. */ |
75 | #ifndef FLT_DIG |
76 | # define FLT_DIG 7 |
77 | #endif |
78 | |
79 | /* The number of decimal digits of precision in a double. */ |
80 | #ifndef DBL_DIG |
81 | # define DBL_DIG 15 |
82 | #endif |
83 | |
84 | /* The number of decimal digits of precision in a long double. */ |
85 | #ifndef LDBL_DIG |
86 | # define LDBL_DIG DBL_DIG |
87 | #endif |
88 | |
89 | enum size_spec { |
90 | NO_SIZE, |
91 | CHAR, |
92 | SHORT, |
93 | INT, |
94 | LONG, |
95 | LONG_LONG, |
96 | FLOAT_SINGLE, |
97 | FLOAT_DOUBLE, |
98 | FLOAT_LONG_DOUBLE, |
99 | N_SIZE_SPECS |
100 | }; |
101 | |
102 | enum output_format { |
103 | SIGNED_DECIMAL, |
104 | UNSIGNED_DECIMAL, |
105 | OCTAL, |
106 | HEXADECIMAL, |
107 | FLOATING_POINT, |
108 | NAMED_CHARACTER, |
109 | CHARACTER |
110 | }; |
111 | |
112 | /* Each output format specification (from '-t spec' or from |
113 | old-style options) is represented by one of these structures. */ |
114 | struct tspec { |
115 | enum output_format fmt; |
116 | enum size_spec size; |
117 | void (*print_function) (size_t, const char *, const char *); |
118 | char *fmt_string; |
119 | int hexl_mode_trailer; |
120 | int field_width; |
121 | }; |
122 | |
123 | /* Convert the number of 8-bit bytes of a binary representation to |
124 | the number of characters (digits + sign if the type is signed) |
125 | required to represent the same quantity in the specified base/type. |
126 | For example, a 32-bit (4-byte) quantity may require a field width |
127 | as wide as the following for these types: |
128 | 11 unsigned octal |
129 | 11 signed decimal |
130 | 10 unsigned decimal |
131 | 8 unsigned hexadecimal */ |
132 | |
133 | static const uint8_t bytes_to_oct_digits[] = |
134 | {0, 3, 6, 8, 11, 14, 16, 19, 22, 25, 27, 30, 32, 35, 38, 41, 43}; |
135 | |
136 | static const uint8_t bytes_to_signed_dec_digits[] = |
137 | {1, 4, 6, 8, 11, 13, 16, 18, 20, 23, 25, 28, 30, 33, 35, 37, 40}; |
138 | |
139 | static const uint8_t bytes_to_unsigned_dec_digits[] = |
140 | {0, 3, 5, 8, 10, 13, 15, 17, 20, 22, 25, 27, 29, 32, 34, 37, 39}; |
141 | |
142 | static const uint8_t bytes_to_hex_digits[] = |
143 | {0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32}; |
144 | |
145 | /* Convert enum size_spec to the size of the named type. */ |
146 | static const signed char width_bytes[] = { |
147 | -1, |
148 | sizeof(char), |
149 | sizeof(short), |
150 | sizeof(int), |
151 | sizeof(long), |
152 | sizeof(ulonglong_t), |
153 | sizeof(float), |
154 | sizeof(double), |
155 | sizeof(longdouble_t) |
156 | }; |
157 | |
158 | /* Ensure that for each member of 'enum size_spec' there is an |
159 | initializer in the width_bytes array. */ |
160 | struct dummy { |
161 | int assert_width_bytes_matches_size_spec_decl |
162 | [sizeof width_bytes / sizeof width_bytes[0] == N_SIZE_SPECS ? 1 : -1]; |
163 | }; |
164 | |
165 | static size_t string_min; |
166 | static int flag_dump_strings; |
167 | |
168 | /* Non-zero if an old-style 'pseudo-address' was specified. */ |
169 | static int flag_pseudo_start; |
170 | |
171 | /* The difference between the old-style pseudo starting address and |
172 | the number of bytes to skip. */ |
173 | static off_t pseudo_offset; |
174 | |
175 | /* Function that accepts an address and an optional following char, |
176 | and prints the address and char to stdout. */ |
177 | static void (*format_address) (off_t, char); |
178 | |
179 | /* The number of input bytes to skip before formatting and writing. */ |
180 | static off_t n_bytes_to_skip; // = 0; |
181 | |
182 | /* When zero, MAX_BYTES_TO_FORMAT and END_OFFSET are ignored, and all |
183 | input is formatted. */ |
184 | static int limit_bytes_to_format; // = 0; |
185 | |
186 | /* The maximum number of bytes that will be formatted. */ |
187 | static off_t max_bytes_to_format; |
188 | |
189 | /* The offset of the first byte after the last byte to be formatted. */ |
190 | static off_t end_offset; |
191 | |
192 | /* When nonzero and two or more consecutive blocks are equal, format |
193 | only the first block and output an asterisk alone on the following |
194 | line to indicate that identical blocks have been elided. */ |
195 | static int abbreviate_duplicate_blocks = 1; |
196 | |
197 | /* An array of specs describing how to format each input block. */ |
198 | static size_t n_specs; |
199 | static struct tspec *spec; |
200 | |
201 | /* The number of input bytes formatted per output line. It must be |
202 | a multiple of the least common multiple of the sizes associated with |
203 | the specified output types. It should be as large as possible, but |
204 | no larger than 16 -- unless specified with the -w option. */ |
205 | static size_t bytes_per_block; |
206 | |
207 | /* Human-readable representation of *file_list (for error messages). |
208 | It differs from *file_list only when *file_list is "-". */ |
209 | static char const *input_filename; |
210 | |
211 | /* A NULL-terminated list of the file-arguments from the command line. */ |
212 | static char const *const *file_list; |
213 | |
214 | /* Initializer for file_list if no file-arguments |
215 | were specified on the command line. */ |
216 | static char const *const default_file_list[] = { "-", NULL }; |
217 | |
218 | /* The input stream associated with the current file. */ |
219 | static FILE *in_stream; |
220 | |
221 | static int ioerror; |
222 | |
223 | #define MAX_INTEGRAL_TYPE_SIZE sizeof(ulonglong_t) |
224 | static unsigned char integral_type_size[MAX_INTEGRAL_TYPE_SIZE + 1] = { |
225 | [sizeof(char)] = CHAR, |
226 | #if USHRT_MAX != UCHAR_MAX |
227 | [sizeof(short)] = SHORT, |
228 | #endif |
229 | #if UINT_MAX != USHRT_MAX |
230 | [sizeof(int)] = INT, |
231 | #endif |
232 | #if ULONG_MAX != UINT_MAX |
233 | [sizeof(long)] = LONG, |
234 | #endif |
235 | #if ULLONG_MAX != ULONG_MAX |
236 | [sizeof(ulonglong_t)] = LONG_LONG, |
237 | #endif |
238 | }; |
239 | |
240 | #define MAX_FP_TYPE_SIZE sizeof(longdouble_t) |
241 | static unsigned char fp_type_size[MAX_FP_TYPE_SIZE + 1] = { |
242 | /* gcc seems to allow repeated indexes. Last one stays */ |
243 | [sizeof(longdouble_t)] = FLOAT_LONG_DOUBLE, |
244 | [sizeof(double)] = FLOAT_DOUBLE, |
245 | [sizeof(float)] = FLOAT_SINGLE, |
246 | }; |
247 | |
248 | |
249 | static unsigned |
250 | gcd(unsigned u, unsigned v) |
251 | { |
252 | unsigned t; |
253 | while (v != 0) { |
254 | t = u % v; |
255 | u = v; |
256 | v = t; |
257 | } |
258 | return u; |
259 | } |
260 | |
261 | /* Compute the least common multiple of U and V. */ |
262 | static unsigned |
263 | lcm(unsigned u, unsigned v) { |
264 | unsigned t = gcd(u, v); |
265 | if (t == 0) |
266 | return 0; |
267 | return u * v / t; |
268 | } |
269 | |
270 | static void |
271 | print_s_char(size_t n_bytes, const char *block, const char *fmt_string) |
272 | { |
273 | while (n_bytes--) { |
274 | int tmp = *(signed char *) block; |
275 | printf(fmt_string, tmp); |
276 | block += sizeof(unsigned char); |
277 | } |
278 | } |
279 | |
280 | static void |
281 | print_char(size_t n_bytes, const char *block, const char *fmt_string) |
282 | { |
283 | while (n_bytes--) { |
284 | unsigned tmp = *(unsigned char *) block; |
285 | printf(fmt_string, tmp); |
286 | block += sizeof(unsigned char); |
287 | } |
288 | } |
289 | |
290 | static void |
291 | print_s_short(size_t n_bytes, const char *block, const char *fmt_string) |
292 | { |
293 | n_bytes /= sizeof(signed short); |
294 | while (n_bytes--) { |
295 | int tmp = *(signed short *) block; |
296 | printf(fmt_string, tmp); |
297 | block += sizeof(unsigned short); |
298 | } |
299 | } |
300 | |
301 | static void |
302 | print_short(size_t n_bytes, const char *block, const char *fmt_string) |
303 | { |
304 | n_bytes /= sizeof(unsigned short); |
305 | while (n_bytes--) { |
306 | unsigned tmp = *(unsigned short *) block; |
307 | printf(fmt_string, tmp); |
308 | block += sizeof(unsigned short); |
309 | } |
310 | } |
311 | |
312 | static void |
313 | print_int(size_t n_bytes, const char *block, const char *fmt_string) |
314 | { |
315 | n_bytes /= sizeof(unsigned); |
316 | while (n_bytes--) { |
317 | unsigned tmp = *(unsigned *) block; |
318 | printf(fmt_string, tmp); |
319 | block += sizeof(unsigned); |
320 | } |
321 | } |
322 | |
323 | #if UINT_MAX == ULONG_MAX |
324 | # define print_long print_int |
325 | #else |
326 | static void |
327 | print_long(size_t n_bytes, const char *block, const char *fmt_string) |
328 | { |
329 | n_bytes /= sizeof(unsigned long); |
330 | while (n_bytes--) { |
331 | unsigned long tmp = *(unsigned long *) block; |
332 | printf(fmt_string, tmp); |
333 | block += sizeof(unsigned long); |
334 | } |
335 | } |
336 | #endif |
337 | |
338 | #if ULONG_MAX == ULLONG_MAX |
339 | # define print_long_long print_long |
340 | #else |
341 | static void |
342 | print_long_long(size_t n_bytes, const char *block, const char *fmt_string) |
343 | { |
344 | n_bytes /= sizeof(ulonglong_t); |
345 | while (n_bytes--) { |
346 | ulonglong_t tmp = *(ulonglong_t *) block; |
347 | printf(fmt_string, tmp); |
348 | block += sizeof(ulonglong_t); |
349 | } |
350 | } |
351 | #endif |
352 | |
353 | static void |
354 | print_float(size_t n_bytes, const char *block, const char *fmt_string) |
355 | { |
356 | n_bytes /= sizeof(float); |
357 | while (n_bytes--) { |
358 | float tmp = *(float *) block; |
359 | printf(fmt_string, tmp); |
360 | block += sizeof(float); |
361 | } |
362 | } |
363 | |
364 | static void |
365 | print_double(size_t n_bytes, const char *block, const char *fmt_string) |
366 | { |
367 | n_bytes /= sizeof(double); |
368 | while (n_bytes--) { |
369 | double tmp = *(double *) block; |
370 | printf(fmt_string, tmp); |
371 | block += sizeof(double); |
372 | } |
373 | } |
374 | |
375 | static void |
376 | print_long_double(size_t n_bytes, const char *block, const char *fmt_string) |
377 | { |
378 | n_bytes /= sizeof(longdouble_t); |
379 | while (n_bytes--) { |
380 | longdouble_t tmp = *(longdouble_t *) block; |
381 | printf(fmt_string, tmp); |
382 | block += sizeof(longdouble_t); |
383 | } |
384 | } |
385 | |
386 | /* print_[named]_ascii are optimized for speed. |
387 | * Remember, someday you may want to pump gigabytes thru this thing. |
388 | * Saving a dozen of .text bytes here is counter-productive */ |
389 | |
390 | static void |
391 | print_named_ascii(size_t n_bytes, const char *block, |
392 | const char *unused_fmt_string ATTRIBUTE_UNUSED) |
393 | { |
394 | /* Names for some non-printing characters. */ |
395 | static const char charname[33][3] = { |
396 | "nul", "soh", "stx", "etx", "eot", "enq", "ack", "bel", |
397 | " bs", " ht", " nl", " vt", " ff", " cr", " so", " si", |
398 | "dle", "dc1", "dc2", "dc3", "dc4", "nak", "syn", "etb", |
399 | "can", " em", "sub", "esc", " fs", " gs", " rs", " us", |
400 | " sp" |
401 | }; |
402 | // buf[N] pos: 01234 56789 |
403 | char buf[12] = " x\0 0xx\0"; |
404 | // actually " x\0 xxx\0", but I want to share the string with below. |
405 | // [12] because we take three 32bit stack slots anyway, and |
406 | // gcc is too dumb to initialize with constant stores, |
407 | // it copies initializer from rodata. Oh well. |
408 | |
409 | while (n_bytes--) { |
410 | unsigned masked_c = *(unsigned char *) block++; |
411 | |
412 | masked_c &= 0x7f; |
413 | if (masked_c == 0x7f) { |
414 | fputs(" del", stdout); |
415 | continue; |
416 | } |
417 | if (masked_c > ' ') { |
418 | buf[3] = masked_c; |
419 | fputs(buf, stdout); |
420 | continue; |
421 | } |
422 | /* Why? Because printf(" %3.3s") is much slower... */ |
423 | buf[6] = charname[masked_c][0]; |
424 | buf[7] = charname[masked_c][1]; |
425 | buf[8] = charname[masked_c][2]; |
426 | fputs(buf+5, stdout); |
427 | } |
428 | } |
429 | |
430 | static void |
431 | print_ascii(size_t n_bytes, const char *block, |
432 | const char *unused_fmt_string ATTRIBUTE_UNUSED) |
433 | { |
434 | // buf[N] pos: 01234 56789 |
435 | char buf[12] = " x\0 0xx\0"; |
436 | |
437 | while (n_bytes--) { |
438 | const char *s; |
439 | unsigned c = *(unsigned char *) block++; |
440 | |
441 | if (ISPRINT(c)) { |
442 | buf[3] = c; |
443 | fputs(buf, stdout); |
444 | continue; |
445 | } |
446 | switch (c) { |
447 | case '\0': |
448 | s = " \\0"; |
449 | break; |
450 | case '\007': |
451 | s = " \\a"; |
452 | break; |
453 | case '\b': |
454 | s = " \\b"; |
455 | break; |
456 | case '\f': |
457 | s = " \\f"; |
458 | break; |
459 | case '\n': |
460 | s = " \\n"; |
461 | break; |
462 | case '\r': |
463 | s = " \\r"; |
464 | break; |
465 | case '\t': |
466 | s = " \\t"; |
467 | break; |
468 | case '\v': |
469 | s = " \\v"; |
470 | break; |
471 | case '\x7f': |
472 | s = " 177"; |
473 | break; |
474 | default: /* c is never larger than 040 */ |
475 | buf[7] = (c >> 3) + '0'; |
476 | buf[8] = (c & 7) + '0'; |
477 | s = buf + 5; |
478 | } |
479 | fputs(s, stdout); |
480 | } |
481 | } |
482 | |
483 | /* Given a list of one or more input filenames FILE_LIST, set the global |
484 | file pointer IN_STREAM and the global string INPUT_FILENAME to the |
485 | first one that can be successfully opened. Modify FILE_LIST to |
486 | reference the next filename in the list. A file name of "-" is |
487 | interpreted as standard input. If any file open fails, give an error |
488 | message and return nonzero. */ |
489 | |
490 | static void |
491 | open_next_file(void) |
492 | { |
493 | while (1) { |
494 | input_filename = *file_list; |
495 | if (!input_filename) |
496 | return; |
497 | file_list++; |
498 | in_stream = fopen_or_warn_stdin(input_filename); |
499 | if (in_stream) { |
500 | if (in_stream == stdin) |
501 | input_filename = bb_msg_standard_input; |
502 | break; |
503 | } |
504 | ioerror = 1; |
505 | } |
506 | |
507 | if (limit_bytes_to_format && !flag_dump_strings) |
508 | setbuf(in_stream, NULL); |
509 | } |
510 | |
511 | /* Test whether there have been errors on in_stream, and close it if |
512 | it is not standard input. Return nonzero if there has been an error |
513 | on in_stream or stdout; return zero otherwise. This function will |
514 | report more than one error only if both a read and a write error |
515 | have occurred. IN_ERRNO, if nonzero, is the error number |
516 | corresponding to the most recent action for IN_STREAM. */ |
517 | |
518 | static void |
519 | check_and_close(void) |
520 | { |
521 | if (in_stream) { |
522 | if (ferror(in_stream)) { |
523 | bb_error_msg("%s: read error", input_filename); |
524 | ioerror = 1; |
525 | } |
526 | fclose_if_not_stdin(in_stream); |
527 | in_stream = NULL; |
528 | } |
529 | |
530 | if (ferror(stdout)) { |
531 | bb_error_msg("write error"); |
532 | ioerror = 1; |
533 | } |
534 | } |
535 | |
536 | /* If S points to a single valid modern od format string, put |
537 | a description of that format in *TSPEC, make *NEXT point at the |
538 | character following the just-decoded format (if *NEXT is non-NULL), |
539 | and return zero. For example, if S were "d4afL" |
540 | *NEXT would be set to "afL" and *TSPEC would be |
541 | { |
542 | fmt = SIGNED_DECIMAL; |
543 | size = INT or LONG; (whichever integral_type_size[4] resolves to) |
544 | print_function = print_int; (assuming size == INT) |
545 | fmt_string = "%011d%c"; |
546 | } |
547 | S_ORIG is solely for reporting errors. It should be the full format |
548 | string argument. */ |
549 | |
550 | static void |
551 | decode_one_format(const char *s_orig, const char *s, const char **next, |
552 | struct tspec *tspec) |
553 | { |
554 | enum size_spec size_spec; |
555 | unsigned size; |
556 | enum output_format fmt; |
557 | const char *p; |
558 | char *end; |
559 | char *fmt_string = NULL; |
560 | void (*print_function) (size_t, const char *, const char *); |
561 | unsigned c; |
562 | unsigned field_width = 0; |
563 | int pos; |
564 | |
565 | assert(tspec != NULL); |
566 | |
567 | switch (*s) { |
568 | case 'd': |
569 | case 'o': |
570 | case 'u': |
571 | case 'x': { |
572 | static const char CSIL[] = "CSIL"; |
573 | |
574 | c = *s++; |
575 | p = strchr(CSIL, *s); |
576 | if (!p) { |
577 | size = sizeof(int); |
578 | if (isdigit(s[0])) { |
579 | size = bb_strtou(s, &end, 0); |
580 | if (errno == ERANGE |
581 | || MAX_INTEGRAL_TYPE_SIZE < size |
582 | || integral_type_size[size] == NO_SIZE |
583 | ) { |
584 | bb_error_msg_and_die("invalid type string '%s'; " |
585 | "%u-byte %s type is not supported", |
586 | s_orig, size, "integral"); |
587 | } |
588 | s = end; |
589 | } |
590 | } else { |
591 | static const uint8_t CSIL_sizeof[] = { |
592 | sizeof(char), |
593 | sizeof(short), |
594 | sizeof(int), |
595 | sizeof(long), |
596 | }; |
597 | size = CSIL_sizeof[p - CSIL]; |
598 | } |
599 | |
600 | #define ISPEC_TO_FORMAT(Spec, Min_format, Long_format, Max_format) \ |
601 | ((Spec) == LONG_LONG ? (Max_format) \ |
602 | : ((Spec) == LONG ? (Long_format) : (Min_format))) |
603 | |
604 | #define FMT_BYTES_ALLOCATED 9 |
605 | size_spec = integral_type_size[size]; |
606 | |
607 | { |
608 | static const char doux[] = "doux"; |
609 | static const char doux_fmt_letter[][4] = { |
610 | "lld", "llo", "llu", "llx" |
611 | }; |
612 | static const enum output_format doux_fmt[] = { |
613 | SIGNED_DECIMAL, |
614 | OCTAL, |
615 | UNSIGNED_DECIMAL, |
616 | HEXADECIMAL, |
617 | }; |
618 | static const uint8_t *const doux_bytes_to_XXX[] = { |
619 | bytes_to_signed_dec_digits, |
620 | bytes_to_oct_digits, |
621 | bytes_to_unsigned_dec_digits, |
622 | bytes_to_hex_digits, |
623 | }; |
624 | static const char doux_fmtstring[][sizeof(" %%0%u%s")] = { |
625 | " %%%u%s", |
626 | " %%0%u%s", |
627 | " %%%u%s", |
628 | " %%0%u%s", |
629 | }; |
630 | |
631 | pos = strchr(doux, c) - doux; |
632 | fmt = doux_fmt[pos]; |
633 | field_width = doux_bytes_to_XXX[pos][size]; |
634 | p = doux_fmt_letter[pos] + 2; |
635 | if (size_spec == LONG) p--; |
636 | if (size_spec == LONG_LONG) p -= 2; |
637 | fmt_string = xasprintf(doux_fmtstring[pos], field_width, p); |
638 | } |
639 | |
640 | switch (size_spec) { |
641 | case CHAR: |
642 | print_function = (fmt == SIGNED_DECIMAL |
643 | ? print_s_char |
644 | : print_char); |
645 | break; |
646 | case SHORT: |
647 | print_function = (fmt == SIGNED_DECIMAL |
648 | ? print_s_short |
649 | : print_short); |
650 | break; |
651 | case INT: |
652 | print_function = print_int; |
653 | break; |
654 | case LONG: |
655 | print_function = print_long; |
656 | break; |
657 | default: /* case LONG_LONG: */ |
658 | print_function = print_long_long; |
659 | break; |
660 | } |
661 | break; |
662 | } |
663 | |
664 | case 'f': { |
665 | static const char FDL[] = "FDL"; |
666 | |
667 | fmt = FLOATING_POINT; |
668 | ++s; |
669 | p = strchr(FDL, *s); |
670 | if (!p) { |
671 | size = sizeof(double); |
672 | if (isdigit(s[0])) { |
673 | size = bb_strtou(s, &end, 0); |
674 | if (errno == ERANGE || size > MAX_FP_TYPE_SIZE |
675 | || fp_type_size[size] == NO_SIZE |
676 | ) { |
677 | bb_error_msg_and_die("invalid type string '%s'; " |
678 | "%u-byte %s type is not supported", |
679 | s_orig, size, "floating point"); |
680 | } |
681 | s = end; |
682 | } |
683 | } else { |
684 | static const uint8_t FDL_sizeof[] = { |
685 | sizeof(float), |
686 | sizeof(double), |
687 | sizeof(longdouble_t), |
688 | }; |
689 | |
690 | size = FDL_sizeof[p - FDL]; |
691 | } |
692 | |
693 | size_spec = fp_type_size[size]; |
694 | |
695 | switch (size_spec) { |
696 | case FLOAT_SINGLE: |
697 | print_function = print_float; |
698 | field_width = FLT_DIG + 8; |
699 | /* Don't use %#e; not all systems support it. */ |
700 | fmt_string = xasprintf(" %%%d.%de", field_width, FLT_DIG); |
701 | break; |
702 | case FLOAT_DOUBLE: |
703 | print_function = print_double; |
704 | field_width = DBL_DIG + 8; |
705 | fmt_string = xasprintf(" %%%d.%de", field_width, DBL_DIG); |
706 | break; |
707 | default: /* case FLOAT_LONG_DOUBLE: */ |
708 | print_function = print_long_double; |
709 | field_width = LDBL_DIG + 8; |
710 | fmt_string = xasprintf(" %%%d.%dLe", field_width, LDBL_DIG); |
711 | break; |
712 | } |
713 | break; |
714 | } |
715 | |
716 | case 'a': |
717 | ++s; |
718 | fmt = NAMED_CHARACTER; |
719 | size_spec = CHAR; |
720 | print_function = print_named_ascii; |
721 | field_width = 3; |
722 | break; |
723 | case 'c': |
724 | ++s; |
725 | fmt = CHARACTER; |
726 | size_spec = CHAR; |
727 | print_function = print_ascii; |
728 | field_width = 3; |
729 | break; |
730 | default: |
731 | bb_error_msg_and_die("invalid character '%c' " |
732 | "in type string '%s'", *s, s_orig); |
733 | } |
734 | |
735 | tspec->size = size_spec; |
736 | tspec->fmt = fmt; |
737 | tspec->print_function = print_function; |
738 | tspec->fmt_string = fmt_string; |
739 | |
740 | tspec->field_width = field_width; |
741 | tspec->hexl_mode_trailer = (*s == 'z'); |
742 | if (tspec->hexl_mode_trailer) |
743 | s++; |
744 | |
745 | if (next != NULL) |
746 | *next = s; |
747 | } |
748 | |
749 | /* Decode the modern od format string S. Append the decoded |
750 | representation to the global array SPEC, reallocating SPEC if |
751 | necessary. Return zero if S is valid, nonzero otherwise. */ |
752 | |
753 | static void |
754 | decode_format_string(const char *s) |
755 | { |
756 | const char *s_orig = s; |
757 | |
758 | while (*s != '\0') { |
759 | struct tspec tspec; |
760 | const char *next; |
761 | |
762 | decode_one_format(s_orig, s, &next, &tspec); |
763 | |
764 | assert(s != next); |
765 | s = next; |
766 | n_specs++; |
767 | spec = xrealloc(spec, n_specs * sizeof(*spec)); |
768 | memcpy(&spec[n_specs-1], &tspec, sizeof *spec); |
769 | } |
770 | } |
771 | |
772 | /* Given a list of one or more input filenames FILE_LIST, set the global |
773 | file pointer IN_STREAM to position N_SKIP in the concatenation of |
774 | those files. If any file operation fails or if there are fewer than |
775 | N_SKIP bytes in the combined input, give an error message and return |
776 | nonzero. When possible, use seek rather than read operations to |
777 | advance IN_STREAM. */ |
778 | |
779 | static void |
780 | skip(off_t n_skip) |
781 | { |
782 | if (n_skip == 0) |
783 | return; |
784 | |
785 | while (in_stream) { /* !EOF */ |
786 | struct stat file_stats; |
787 | |
788 | /* First try seeking. For large offsets, this extra work is |
789 | worthwhile. If the offset is below some threshold it may be |
790 | more efficient to move the pointer by reading. There are two |
791 | issues when trying to seek: |
792 | - the file must be seekable. |
793 | - before seeking to the specified position, make sure |
794 | that the new position is in the current file. |
795 | Try to do that by getting file's size using fstat. |
796 | But that will work only for regular files. */ |
797 | |
798 | /* The st_size field is valid only for regular files |
799 | (and for symbolic links, which cannot occur here). |
800 | If the number of bytes left to skip is at least |
801 | as large as the size of the current file, we can |
802 | decrement n_skip and go on to the next file. */ |
803 | if (fstat(fileno(in_stream), &file_stats) == 0 |
804 | && S_ISREG(file_stats.st_mode) && file_stats.st_size >= 0 |
805 | ) { |
806 | if (file_stats.st_size < n_skip) { |
807 | n_skip -= file_stats.st_size; |
808 | /* take check&close / open_next route */ |
809 | } else { |
810 | if (fseeko(in_stream, n_skip, SEEK_CUR) != 0) |
811 | ioerror = 1; |
812 | return; |
813 | } |
814 | } else { |
815 | /* If it's not a regular file with nonnegative size, |
816 | position the file pointer by reading. */ |
817 | char buf[BUFSIZ]; |
818 | size_t n_bytes_read, n_bytes_to_read = BUFSIZ; |
819 | |
820 | while (n_skip > 0) { |
821 | if (n_skip < n_bytes_to_read) |
822 | n_bytes_to_read = n_skip; |
823 | n_bytes_read = fread(buf, 1, n_bytes_to_read, in_stream); |
824 | n_skip -= n_bytes_read; |
825 | if (n_bytes_read != n_bytes_to_read) |
826 | break; /* EOF on this file or error */ |
827 | } |
828 | } |
829 | if (n_skip == 0) |
830 | return; |
831 | |
832 | check_and_close(); |
833 | open_next_file(); |
834 | } |
835 | |
836 | if (n_skip) |
837 | bb_error_msg_and_die("cannot skip past end of combined input"); |
838 | } |
839 | |
840 | |
841 | typedef void FN_format_address(off_t address, char c); |
842 | |
843 | static void |
844 | format_address_none(off_t address ATTRIBUTE_UNUSED, char c ATTRIBUTE_UNUSED) |
845 | { |
846 | } |
847 | |
848 | static char address_fmt[] = "%0n"OFF_FMT"xc"; |
849 | /* Corresponds to 'x' above */ |
850 | #define address_base_char address_fmt[sizeof(address_fmt)-3] |
851 | /* Corresponds to 'n' above */ |
852 | #define address_pad_len_char address_fmt[2] |
853 | |
854 | static void |
855 | format_address_std(off_t address, char c) |
856 | { |
857 | /* Corresponds to 'c' */ |
858 | address_fmt[sizeof(address_fmt)-2] = c; |
859 | printf(address_fmt, address); |
860 | } |
861 | |
862 | #if ENABLE_GETOPT_LONG |
863 | /* only used with --traditional */ |
864 | static void |
865 | format_address_paren(off_t address, char c) |
866 | { |
867 | putchar('('); |
868 | format_address_std(address, ')'); |
869 | if (c) putchar(c); |
870 | } |
871 | |
872 | static void |
873 | format_address_label(off_t address, char c) |
874 | { |
875 | format_address_std(address, ' '); |
876 | format_address_paren(address + pseudo_offset, c); |
877 | } |
878 | #endif |
879 | |
880 | static void |
881 | dump_hexl_mode_trailer(size_t n_bytes, const char *block) |
882 | { |
883 | fputs(" >", stdout); |
884 | while (n_bytes--) { |
885 | unsigned c = *(unsigned char *) block++; |
886 | c = (ISPRINT(c) ? c : '.'); |
887 | putchar(c); |
888 | } |
889 | putchar('<'); |
890 | } |
891 | |
892 | /* Write N_BYTES bytes from CURR_BLOCK to standard output once for each |
893 | of the N_SPEC format specs. CURRENT_OFFSET is the byte address of |
894 | CURR_BLOCK in the concatenation of input files, and it is printed |
895 | (optionally) only before the output line associated with the first |
896 | format spec. When duplicate blocks are being abbreviated, the output |
897 | for a sequence of identical input blocks is the output for the first |
898 | block followed by an asterisk alone on a line. It is valid to compare |
899 | the blocks PREV_BLOCK and CURR_BLOCK only when N_BYTES == BYTES_PER_BLOCK. |
900 | That condition may be false only for the last input block -- and then |
901 | only when it has not been padded to length BYTES_PER_BLOCK. */ |
902 | |
903 | static void |
904 | write_block(off_t current_offset, size_t n_bytes, |
905 | const char *prev_block, const char *curr_block) |
906 | { |
907 | static char first = 1; |
908 | static char prev_pair_equal = 0; |
909 | size_t i; |
910 | |
911 | if (abbreviate_duplicate_blocks |
912 | && !first |
913 | && n_bytes == bytes_per_block |
914 | && memcmp(prev_block, curr_block, bytes_per_block) == 0 |
915 | ) { |
916 | if (prev_pair_equal) { |
917 | /* The two preceding blocks were equal, and the current |
918 | block is the same as the last one, so print nothing. */ |
919 | } else { |
920 | puts("*"); |
921 | prev_pair_equal = 1; |
922 | } |
923 | } else { |
924 | first = 0; |
925 | prev_pair_equal = 0; |
926 | for (i = 0; i < n_specs; i++) { |
927 | if (i == 0) |
928 | format_address(current_offset, '\0'); |
929 | else |
930 | printf("%*s", address_pad_len_char - '0', ""); |
931 | (*spec[i].print_function) (n_bytes, curr_block, spec[i].fmt_string); |
932 | if (spec[i].hexl_mode_trailer) { |
933 | /* space-pad out to full line width, then dump the trailer */ |
934 | int datum_width = width_bytes[spec[i].size]; |
935 | int blank_fields = (bytes_per_block - n_bytes) / datum_width; |
936 | int field_width = spec[i].field_width + 1; |
937 | printf("%*s", blank_fields * field_width, ""); |
938 | dump_hexl_mode_trailer(n_bytes, curr_block); |
939 | } |
940 | putchar('\n'); |
941 | } |
942 | } |
943 | } |
944 | |
945 | static void |
946 | read_block(size_t n, char *block, size_t *n_bytes_in_buffer) |
947 | { |
948 | assert(0 < n && n <= bytes_per_block); |
949 | |
950 | *n_bytes_in_buffer = 0; |
951 | |
952 | if (n == 0) |
953 | return; |
954 | |
955 | while (in_stream != NULL) { /* EOF. */ |
956 | size_t n_needed; |
957 | size_t n_read; |
958 | |
959 | n_needed = n - *n_bytes_in_buffer; |
960 | n_read = fread(block + *n_bytes_in_buffer, 1, n_needed, in_stream); |
961 | *n_bytes_in_buffer += n_read; |
962 | if (n_read == n_needed) |
963 | break; |
964 | /* error check is done in check_and_close */ |
965 | check_and_close(); |
966 | open_next_file(); |
967 | } |
968 | } |
969 | |
970 | /* Return the least common multiple of the sizes associated |
971 | with the format specs. */ |
972 | |
973 | static int |
974 | get_lcm(void) |
975 | { |
976 | size_t i; |
977 | int l_c_m = 1; |
978 | |
979 | for (i = 0; i < n_specs; i++) |
980 | l_c_m = lcm(l_c_m, width_bytes[(int) spec[i].size]); |
981 | return l_c_m; |
982 | } |
983 | |
984 | #if ENABLE_GETOPT_LONG |
985 | /* If S is a valid traditional offset specification with an optional |
986 | leading '+' return nonzero and set *OFFSET to the offset it denotes. */ |
987 | |
988 | static int |
989 | parse_old_offset(const char *s, off_t *offset) |
990 | { |
991 | static const struct suffix_mult Bb[] = { |
992 | { "B", 1024 }, |
993 | { "b", 512 }, |
994 | { NULL, 0 } |
995 | }; |
996 | char *p; |
997 | int radix; |
998 | |
999 | /* Skip over any leading '+'. */ |
1000 | if (s[0] == '+') ++s; |
1001 | |
1002 | /* Determine the radix we'll use to interpret S. If there is a '.', |
1003 | * it's decimal, otherwise, if the string begins with '0X'or '0x', |
1004 | * it's hexadecimal, else octal. */ |
1005 | p = strchr(s, '.'); |
1006 | radix = 8; |
1007 | if (p) { |
1008 | p[0] = '\0'; /* cheating */ |
1009 | radix = 10; |
1010 | } else if (s[0] == '0' && (s[1] == 'x' || s[1] == 'X')) |
1011 | radix = 16; |
1012 | |
1013 | *offset = xstrtooff_sfx(s, radix, Bb); |
1014 | if (p) p[0] = '.'; |
1015 | |
1016 | return (*offset >= 0); |
1017 | } |
1018 | #endif |
1019 | |
1020 | /* Read a chunk of size BYTES_PER_BLOCK from the input files, write the |
1021 | formatted block to standard output, and repeat until the specified |
1022 | maximum number of bytes has been read or until all input has been |
1023 | processed. If the last block read is smaller than BYTES_PER_BLOCK |
1024 | and its size is not a multiple of the size associated with a format |
1025 | spec, extend the input block with zero bytes until its length is a |
1026 | multiple of all format spec sizes. Write the final block. Finally, |
1027 | write on a line by itself the offset of the byte after the last byte |
1028 | read. Accumulate return values from calls to read_block and |
1029 | check_and_close, and if any was nonzero, return nonzero. |
1030 | Otherwise, return zero. */ |
1031 | |
1032 | static void |
1033 | dump(void) |
1034 | { |
1035 | char *block[2]; |
1036 | off_t current_offset; |
1037 | int idx; |
1038 | size_t n_bytes_read; |
1039 | |
1040 | block[0] = xmalloc(2*bytes_per_block); |
1041 | block[1] = block[0] + bytes_per_block; |
1042 | |
1043 | current_offset = n_bytes_to_skip; |
1044 | |
1045 | idx = 0; |
1046 | if (limit_bytes_to_format) { |
1047 | while (1) { |
1048 | size_t n_needed; |
1049 | if (current_offset >= end_offset) { |
1050 | n_bytes_read = 0; |
1051 | break; |
1052 | } |
1053 | n_needed = MIN(end_offset - current_offset, |
1054 | (off_t) bytes_per_block); |
1055 | read_block(n_needed, block[idx], &n_bytes_read); |
1056 | if (n_bytes_read < bytes_per_block) |
1057 | break; |
1058 | assert(n_bytes_read == bytes_per_block); |
1059 | write_block(current_offset, n_bytes_read, |
1060 | block[!idx], block[idx]); |
1061 | current_offset += n_bytes_read; |
1062 | idx = !idx; |
1063 | } |
1064 | } else { |
1065 | while (1) { |
1066 | read_block(bytes_per_block, block[idx], &n_bytes_read); |
1067 | if (n_bytes_read < bytes_per_block) |
1068 | break; |
1069 | assert(n_bytes_read == bytes_per_block); |
1070 | write_block(current_offset, n_bytes_read, |
1071 | block[!idx], block[idx]); |
1072 | current_offset += n_bytes_read; |
1073 | idx = !idx; |
1074 | } |
1075 | } |
1076 | |
1077 | if (n_bytes_read > 0) { |
1078 | int l_c_m; |
1079 | size_t bytes_to_write; |
1080 | |
1081 | l_c_m = get_lcm(); |
1082 | |
1083 | /* Make bytes_to_write the smallest multiple of l_c_m that |
1084 | is at least as large as n_bytes_read. */ |
1085 | bytes_to_write = l_c_m * ((n_bytes_read + l_c_m - 1) / l_c_m); |
1086 | |
1087 | memset(block[idx] + n_bytes_read, 0, bytes_to_write - n_bytes_read); |
1088 | write_block(current_offset, bytes_to_write, |
1089 | block[!idx], block[idx]); |
1090 | current_offset += n_bytes_read; |
1091 | } |
1092 | |
1093 | format_address(current_offset, '\n'); |
1094 | |
1095 | if (limit_bytes_to_format && current_offset >= end_offset) |
1096 | check_and_close(); |
1097 | |
1098 | free(block[0]); |
1099 | } |
1100 | |
1101 | /* Read a single byte into *C from the concatenation of the input files |
1102 | named in the global array FILE_LIST. On the first call to this |
1103 | function, the global variable IN_STREAM is expected to be an open |
1104 | stream associated with the input file INPUT_FILENAME. If IN_STREAM |
1105 | is at end-of-file, close it and update the global variables IN_STREAM |
1106 | and INPUT_FILENAME so they correspond to the next file in the list. |
1107 | Then try to read a byte from the newly opened file. Repeat if |
1108 | necessary until EOF is reached for the last file in FILE_LIST, then |
1109 | set *C to EOF and return. Subsequent calls do likewise. The return |
1110 | value is nonzero if any errors occured, zero otherwise. */ |
1111 | |
1112 | static void |
1113 | read_char(int *c) |
1114 | { |
1115 | while (in_stream) { /* !EOF */ |
1116 | *c = fgetc(in_stream); |
1117 | if (*c != EOF) |
1118 | return; |
1119 | check_and_close(); |
1120 | open_next_file(); |
1121 | } |
1122 | *c = EOF; |
1123 | } |
1124 | |
1125 | /* Read N bytes into BLOCK from the concatenation of the input files |
1126 | named in the global array FILE_LIST. On the first call to this |
1127 | function, the global variable IN_STREAM is expected to be an open |
1128 | stream associated with the input file INPUT_FILENAME. If all N |
1129 | bytes cannot be read from IN_STREAM, close IN_STREAM and update |
1130 | the global variables IN_STREAM and INPUT_FILENAME. Then try to |
1131 | read the remaining bytes from the newly opened file. Repeat if |
1132 | necessary until EOF is reached for the last file in FILE_LIST. |
1133 | On subsequent calls, don't modify BLOCK and return zero. Set |
1134 | *N_BYTES_IN_BUFFER to the number of bytes read. If an error occurs, |
1135 | it will be detected through ferror when the stream is about to be |
1136 | closed. If there is an error, give a message but continue reading |
1137 | as usual and return nonzero. Otherwise return zero. */ |
1138 | |
1139 | /* STRINGS mode. Find each "string constant" in the input. |
1140 | A string constant is a run of at least 'string_min' ASCII |
1141 | graphic (or formatting) characters terminated by a null. |
1142 | Based on a function written by Richard Stallman for a |
1143 | traditional version of od. Return nonzero if an error |
1144 | occurs. Otherwise, return zero. */ |
1145 | |
1146 | static void |
1147 | dump_strings(void) |
1148 | { |
1149 | size_t bufsize = MAX(100, string_min); |
1150 | char *buf = xmalloc(bufsize); |
1151 | off_t address = n_bytes_to_skip; |
1152 | |
1153 | while (1) { |
1154 | size_t i; |
1155 | int c; |
1156 | |
1157 | /* See if the next 'string_min' chars are all printing chars. */ |
1158 | tryline: |
1159 | if (limit_bytes_to_format && (end_offset - string_min <= address)) |
1160 | break; |
1161 | i = 0; |
1162 | while (!limit_bytes_to_format || address < end_offset) { |
1163 | if (i == bufsize) { |
1164 | bufsize += bufsize/8; |
1165 | buf = xrealloc(buf, bufsize); |
1166 | } |
1167 | read_char(&c); |
1168 | if (c < 0) { /* EOF */ |
1169 | free(buf); |
1170 | return; |
1171 | } |
1172 | address++; |
1173 | if (!c) |
1174 | break; |
1175 | if (!ISPRINT(c)) |
1176 | goto tryline; /* It isn't; give up on this string. */ |
1177 | buf[i++] = c; /* String continues; store it all. */ |
1178 | } |
1179 | |
1180 | if (i < string_min) /* Too short! */ |
1181 | goto tryline; |
1182 | |
1183 | /* If we get here, the string is all printable and null-terminated, |
1184 | * so print it. It is all in 'buf' and 'i' is its length. */ |
1185 | buf[i] = 0; |
1186 | format_address(address - i - 1, ' '); |
1187 | |
1188 | for (i = 0; (c = buf[i]); i++) { |
1189 | switch (c) { |
1190 | case '\007': fputs("\\a", stdout); break; |
1191 | case '\b': fputs("\\b", stdout); break; |
1192 | case '\f': fputs("\\f", stdout); break; |
1193 | case '\n': fputs("\\n", stdout); break; |
1194 | case '\r': fputs("\\r", stdout); break; |
1195 | case '\t': fputs("\\t", stdout); break; |
1196 | case '\v': fputs("\\v", stdout); break; |
1197 | default: putc(c, stdout); |
1198 | } |
1199 | } |
1200 | putchar('\n'); |
1201 | } |
1202 | |
1203 | /* We reach this point only if we search through |
1204 | (max_bytes_to_format - string_min) bytes before reaching EOF. */ |
1205 | free(buf); |
1206 | |
1207 | check_and_close(); |
1208 | } |
1209 | |
1210 | int |
1211 | od_main(int argc, char **argv) |
1212 | { |
1213 | static const struct suffix_mult bkm[] = { |
1214 | { "b", 512 }, |
1215 | { "k", 1024 }, |
1216 | { "m", 1024*1024 }, |
1217 | { NULL, 0 } |
1218 | }; |
1219 | unsigned opt; |
1220 | int l_c_m; |
1221 | /* The old-style 'pseudo starting address' to be printed in parentheses |
1222 | after any true address. */ |
1223 | off_t pseudo_start = 0; // only for gcc |
1224 | enum { |
1225 | OPT_A = 1 << 0, |
1226 | OPT_N = 1 << 1, |
1227 | OPT_a = 1 << 2, |
1228 | OPT_b = 1 << 3, |
1229 | OPT_c = 1 << 4, |
1230 | OPT_d = 1 << 5, |
1231 | OPT_f = 1 << 6, |
1232 | OPT_h = 1 << 7, |
1233 | OPT_i = 1 << 8, |
1234 | OPT_j = 1 << 9, |
1235 | OPT_l = 1 << 10, |
1236 | OPT_o = 1 << 11, |
1237 | OPT_t = 1 << 12, |
1238 | OPT_v = 1 << 13, |
1239 | OPT_x = 1 << 14, |
1240 | OPT_s = 1 << 15, |
1241 | OPT_S = 1 << 16, |
1242 | OPT_w = 1 << 17, |
1243 | OPT_traditional = (1 << 18) * ENABLE_GETOPT_LONG, |
1244 | }; |
1245 | #if ENABLE_GETOPT_LONG |
1246 | static const struct option long_options[] = { |
1247 | { "skip-bytes", required_argument, NULL, 'j' }, |
1248 | { "address-radix", required_argument, NULL, 'A' }, |
1249 | { "read-bytes", required_argument, NULL, 'N' }, |
1250 | { "format", required_argument, NULL, 't' }, |
1251 | { "output-duplicates", no_argument, NULL, 'v' }, |
1252 | { "strings", optional_argument, NULL, 'S' }, |
1253 | { "width", optional_argument, NULL, 'w' }, |
1254 | { "traditional", no_argument, NULL, 0xff }, |
1255 | { NULL, 0, NULL, 0 } |
1256 | }; |
1257 | #endif |
1258 | char *str_A, *str_N, *str_j, *str_S; |
1259 | char *str_w = NULL; |
1260 | llist_t *lst_t = NULL; |
1261 | |
1262 | spec = NULL; |
1263 | format_address = format_address_std; |
1264 | address_base_char = 'o'; |
1265 | address_pad_len_char = '7'; |
1266 | flag_dump_strings = 0; |
1267 | |
1268 | /* Parse command line */ |
1269 | opt_complementary = "t::"; // list |
1270 | #if ENABLE_GETOPT_LONG |
1271 | applet_long_options = long_options; |
1272 | #endif |
1273 | opt = getopt32(argc, argv, "A:N:abcdfhij:lot:vxsS:" |
1274 | "w::", // -w with optional param |
1275 | // -S was -s and also had optional parameter |
1276 | // but in coreutils 6.3 it was renamed and now has |
1277 | // _mandatory_ parameter |
1278 | &str_A, &str_N, &str_j, &lst_t, &str_S, &str_w); |
1279 | argc -= optind; |
1280 | argv += optind; |
1281 | if (opt & OPT_A) { |
1282 | static const char doxn[] = "doxn"; |
1283 | static const char doxn_address_base_char[] = { |
1284 | 'u', 'o', 'x', /* '?' fourth one is not important */ |
1285 | }; |
1286 | static const uint8_t doxn_address_pad_len_char[] = { |
1287 | '7', '7', '6', /* '?' */ |
1288 | }; |
1289 | char *p; |
1290 | int pos; |
1291 | p = strchr(doxn, str_A[0]); |
1292 | if (!p) |
1293 | bb_error_msg_and_die("bad output address radix " |
1294 | "'%c' (must be [doxn])", str_A[0]); |
1295 | pos = p - doxn; |
1296 | if (pos == 3) format_address = format_address_none; |
1297 | address_base_char = doxn_address_base_char[pos]; |
1298 | address_pad_len_char = doxn_address_pad_len_char[pos]; |
1299 | } |
1300 | if (opt & OPT_N) { |
1301 | limit_bytes_to_format = 1; |
1302 | max_bytes_to_format = xstrtooff_sfx(str_N, 0, bkm); |
1303 | } |
1304 | if (opt & OPT_a) decode_format_string("a"); |
1305 | if (opt & OPT_b) decode_format_string("oC"); |
1306 | if (opt & OPT_c) decode_format_string("c"); |
1307 | if (opt & OPT_d) decode_format_string("u2"); |
1308 | if (opt & OPT_f) decode_format_string("fF"); |
1309 | if (opt & OPT_h) decode_format_string("x2"); |
1310 | if (opt & OPT_i) decode_format_string("d2"); |
1311 | if (opt & OPT_j) n_bytes_to_skip = xstrtooff_sfx(str_j, 0, bkm); |
1312 | if (opt & OPT_l) decode_format_string("d4"); |
1313 | if (opt & OPT_o) decode_format_string("o2"); |
1314 | //if (opt & OPT_t)... |
1315 | lst_t = rev_llist(lst_t); |
1316 | while (lst_t) { |
1317 | decode_format_string(lst_t->data); |
1318 | lst_t = lst_t->link; |
1319 | } |
1320 | if (opt & OPT_v) abbreviate_duplicate_blocks = 0; |
1321 | if (opt & OPT_x) decode_format_string("x2"); |
1322 | if (opt & OPT_s) decode_format_string("d2"); |
1323 | if (opt & OPT_S) { |
1324 | string_min = 3; |
1325 | string_min = xstrtou_sfx(str_S, 0, bkm); |
1326 | flag_dump_strings = 1; |
1327 | } |
1328 | //if (opt & OPT_w)... |
1329 | //if (opt & OPT_traditional)... |
1330 | |
1331 | if (flag_dump_strings && n_specs > 0) |
1332 | bb_error_msg_and_die("no type may be specified when dumping strings"); |
1333 | |
1334 | /* If the --traditional option is used, there may be from |
1335 | * 0 to 3 remaining command line arguments; handle each case |
1336 | * separately. |
1337 | * od [file] [[+]offset[.][b] [[+]label[.][b]]] |
1338 | * The offset and pseudo_start have the same syntax. |
1339 | * |
1340 | * FIXME: POSIX 1003.1-2001 with XSI requires support for the |
1341 | * traditional syntax even if --traditional is not given. */ |
1342 | |
1343 | #if ENABLE_GETOPT_LONG |
1344 | if (opt & OPT_traditional) { |
1345 | off_t o1, o2; |
1346 | |
1347 | if (argc == 1) { |
1348 | if (parse_old_offset(argv[0], &o1)) { |
1349 | n_bytes_to_skip = o1; |
1350 | --argc; |
1351 | ++argv; |
1352 | } |
1353 | } else if (argc == 2) { |
1354 | if (parse_old_offset(argv[0], &o1) |
1355 | && parse_old_offset(argv[1], &o2) |
1356 | ) { |
1357 | n_bytes_to_skip = o1; |
1358 | flag_pseudo_start = 1; |
1359 | pseudo_start = o2; |
1360 | argv += 2; |
1361 | argc -= 2; |
1362 | } else if (parse_old_offset(argv[1], &o2)) { |
1363 | n_bytes_to_skip = o2; |
1364 | --argc; |
1365 | argv[1] = argv[0]; |
1366 | ++argv; |
1367 | } else { |
1368 | bb_error_msg_and_die("invalid second operand " |
1369 | "in compatibility mode '%s'", argv[1]); |
1370 | } |
1371 | } else if (argc == 3) { |
1372 | if (parse_old_offset(argv[1], &o1) |
1373 | && parse_old_offset(argv[2], &o2) |
1374 | ) { |
1375 | n_bytes_to_skip = o1; |
1376 | flag_pseudo_start = 1; |
1377 | pseudo_start = o2; |
1378 | argv[2] = argv[0]; |
1379 | argv += 2; |
1380 | argc -= 2; |
1381 | } else { |
1382 | bb_error_msg_and_die("in compatibility mode " |
1383 | "the last two arguments must be offsets"); |
1384 | } |
1385 | } else if (argc > 3) { |
1386 | bb_error_msg_and_die("compatibility mode supports " |
1387 | "at most three arguments"); |
1388 | } |
1389 | |
1390 | if (flag_pseudo_start) { |
1391 | if (format_address == format_address_none) { |
1392 | address_base_char = 'o'; |
1393 | address_pad_len_char = '7'; |
1394 | format_address = format_address_paren; |
1395 | } else |
1396 | format_address = format_address_label; |
1397 | } |
1398 | } |
1399 | #endif |
1400 | |
1401 | if (limit_bytes_to_format) { |
1402 | end_offset = n_bytes_to_skip + max_bytes_to_format; |
1403 | if (end_offset < n_bytes_to_skip) |
1404 | bb_error_msg_and_die("skip-bytes + read-bytes is too large"); |
1405 | } |
1406 | |
1407 | if (n_specs == 0) { |
1408 | decode_format_string("o2"); |
1409 | n_specs = 1; |
1410 | } |
1411 | |
1412 | /* If no files were listed on the command line, |
1413 | set the global pointer FILE_LIST so that it |
1414 | references the null-terminated list of one name: "-". */ |
1415 | file_list = default_file_list; |
1416 | if (argc > 0) { |
1417 | /* Set the global pointer FILE_LIST so that it |
1418 | references the first file-argument on the command-line. */ |
1419 | file_list = (char const *const *) argv; |
1420 | } |
1421 | |
1422 | /* open the first input file */ |
1423 | open_next_file(); |
1424 | /* skip over any unwanted header bytes */ |
1425 | skip(n_bytes_to_skip); |
1426 | if (!in_stream) |
1427 | return 1; |
1428 | |
1429 | pseudo_offset = (flag_pseudo_start ? pseudo_start - n_bytes_to_skip : 0); |
1430 | |
1431 | /* Compute output block length. */ |
1432 | l_c_m = get_lcm(); |
1433 | |
1434 | if (opt & OPT_w) { /* -w: width */ |
1435 | bytes_per_block = 32; |
1436 | if (str_w) |
1437 | bytes_per_block = xatou(str_w); |
1438 | if (!bytes_per_block || bytes_per_block % l_c_m != 0) { |
1439 | bb_error_msg("warning: invalid width %zu; using %d instead", |
1440 | bytes_per_block, l_c_m); |
1441 | bytes_per_block = l_c_m; |
1442 | } |
1443 | } else { |
1444 | bytes_per_block = l_c_m; |
1445 | if (l_c_m < DEFAULT_BYTES_PER_BLOCK) |
1446 | bytes_per_block *= DEFAULT_BYTES_PER_BLOCK / l_c_m; |
1447 | } |
1448 | |
1449 | #ifdef DEBUG |
1450 | for (i = 0; i < n_specs; i++) { |
1451 | printf("%d: fmt=\"%s\" width=%d\n", |
1452 | i, spec[i].fmt_string, width_bytes[spec[i].size]); |
1453 | } |
1454 | #endif |
1455 | |
1456 | if (flag_dump_strings) |
1457 | dump_strings(); |
1458 | else |
1459 | dump(); |
1460 | |
1461 | if (fclose(stdin) == EOF) |
1462 | bb_perror_msg_and_die(bb_msg_standard_input); |
1463 | |
1464 | return (ioerror != 0); /* err != 0 - return 1 (failure) */ |
1465 | } |