]>
Commit | Line | Data |
---|---|---|
552cc11b | 1 | /* |
2a595276 | 2 | * Copyright (C) 2008-2012 Tobias Brunner |
552cc11b MW |
3 | * Copyright (C) 2005-2008 Martin Willi |
4 | * Hochschule fuer Technik Rapperswil | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2 of the License, or (at your | |
9 | * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
13 | * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
14 | * for more details. | |
552cc11b MW |
15 | */ |
16 | ||
17 | #include "utils.h" | |
18 | ||
6c20579a | 19 | #include <sys/stat.h> |
552cc11b | 20 | #include <string.h> |
552cc11b | 21 | #include <stdio.h> |
6c20579a | 22 | #include <unistd.h> |
876961cf | 23 | #include <inttypes.h> |
74b14b40 | 24 | #include <stdint.h> |
d24a74c5 | 25 | #include <limits.h> |
6c20579a | 26 | #include <dirent.h> |
f464d750 | 27 | #include <time.h> |
2a595276 | 28 | #include <pthread.h> |
552cc11b | 29 | |
12642a68 | 30 | #include "collections/enumerator.h" |
f05b4272 | 31 | #include "utils/debug.h" |
552cc11b | 32 | |
a8809bb0 | 33 | ENUM(status_names, SUCCESS, NEED_MORE, |
552cc11b MW |
34 | "SUCCESS", |
35 | "FAILED", | |
36 | "OUT_OF_RES", | |
37 | "ALREADY_DONE", | |
38 | "NOT_SUPPORTED", | |
39 | "INVALID_ARG", | |
40 | "NOT_FOUND", | |
41 | "PARSE_ERROR", | |
42 | "VERIFY_ERROR", | |
43 | "INVALID_STATE", | |
44 | "DESTROY_ME", | |
45 | "NEED_MORE", | |
46 | ); | |
47 | ||
552cc11b MW |
48 | /** |
49 | * Described in header. | |
50 | */ | |
01e43e31 | 51 | void memxor(u_int8_t dst[], u_int8_t src[], size_t n) |
552cc11b | 52 | { |
01e43e31 | 53 | int m, i; |
7daf5226 | 54 | |
01e43e31 | 55 | /* byte wise XOR until dst aligned */ |
09846603 | 56 | for (i = 0; (uintptr_t)&dst[i] % sizeof(long) && i < n; i++) |
4fd233a7 | 57 | { |
01e43e31 | 58 | dst[i] ^= src[i]; |
4fd233a7 | 59 | } |
01e43e31 | 60 | /* try to use words if src shares an aligment with dst */ |
74b14b40 | 61 | switch (((uintptr_t)&src[i] % sizeof(long))) |
552cc11b | 62 | { |
01e43e31 MW |
63 | case 0: |
64 | for (m = n - sizeof(long); i <= m; i += sizeof(long)) | |
65 | { | |
66 | *(long*)&dst[i] ^= *(long*)&src[i]; | |
67 | } | |
68 | break; | |
69 | case sizeof(int): | |
70 | for (m = n - sizeof(int); i <= m; i += sizeof(int)) | |
71 | { | |
72 | *(int*)&dst[i] ^= *(int*)&src[i]; | |
73 | } | |
74 | break; | |
75 | case sizeof(short): | |
76 | for (m = n - sizeof(short); i <= m; i += sizeof(short)) | |
77 | { | |
78 | *(short*)&dst[i] ^= *(short*)&src[i]; | |
79 | } | |
80 | break; | |
81 | default: | |
82 | break; | |
83 | } | |
84 | /* byte wise XOR of the rest */ | |
85 | for (; i < n; i++) | |
86 | { | |
87 | dst[i] ^= src[i]; | |
552cc11b MW |
88 | } |
89 | } | |
90 | ||
ed678b52 MW |
91 | /** |
92 | * Described in header. | |
93 | */ | |
94 | void memwipe_noinline(void *ptr, size_t n) | |
95 | { | |
96 | memwipe_inline(ptr, n); | |
97 | } | |
98 | ||
81736d7d TB |
99 | /** |
100 | * Described in header. | |
101 | */ | |
102 | void *memstr(const void *haystack, const char *needle, size_t n) | |
103 | { | |
104 | unsigned const char *pos = haystack; | |
7b91011d TB |
105 | size_t l; |
106 | ||
107 | if (!haystack || !needle || (l = strlen(needle)) == 0) | |
108 | { | |
109 | return NULL; | |
110 | } | |
81736d7d TB |
111 | for (; n >= l; ++pos, --n) |
112 | { | |
113 | if (memeq(pos, needle, l)) | |
114 | { | |
115 | return (void*)pos; | |
116 | } | |
117 | } | |
118 | return NULL; | |
119 | } | |
120 | ||
d543d9ca TB |
121 | /** |
122 | * Described in header. | |
123 | */ | |
124 | char* translate(char *str, const char *from, const char *to) | |
125 | { | |
126 | char *pos = str; | |
127 | if (strlen(from) != strlen(to)) | |
128 | { | |
129 | return str; | |
130 | } | |
131 | while (pos && *pos) | |
132 | { | |
133 | char *match; | |
134 | if ((match = strchr(from, *pos)) != NULL) | |
135 | { | |
136 | *pos = to[match - from]; | |
137 | } | |
138 | pos++; | |
139 | } | |
140 | return str; | |
141 | } | |
142 | ||
6c20579a TB |
143 | /** |
144 | * Described in header. | |
145 | */ | |
146 | bool mkdir_p(const char *path, mode_t mode) | |
147 | { | |
fc1afcc8 | 148 | int len; |
6c20579a TB |
149 | char *pos, full[PATH_MAX]; |
150 | pos = full; | |
151 | if (!path || *path == '\0') | |
152 | { | |
153 | return TRUE; | |
154 | } | |
155 | len = snprintf(full, sizeof(full)-1, "%s", path); | |
156 | if (len < 0 || len >= sizeof(full)-1) | |
157 | { | |
8b0e0910 | 158 | DBG1(DBG_LIB, "path string %s too long", path); |
6c20579a TB |
159 | return FALSE; |
160 | } | |
161 | /* ensure that the path ends with a '/' */ | |
162 | if (full[len-1] != '/') | |
163 | { | |
164 | full[len++] = '/'; | |
165 | full[len] = '\0'; | |
166 | } | |
167 | /* skip '/' at the beginning */ | |
168 | while (*pos == '/') | |
169 | { | |
170 | pos++; | |
171 | } | |
172 | while ((pos = strchr(pos, '/'))) | |
173 | { | |
174 | *pos = '\0'; | |
175 | if (access(full, F_OK) < 0) | |
176 | { | |
177 | if (mkdir(full, mode) < 0) | |
178 | { | |
8b0e0910 | 179 | DBG1(DBG_LIB, "failed to create directory %s", full); |
6c20579a TB |
180 | return FALSE; |
181 | } | |
182 | } | |
183 | *pos = '/'; | |
184 | pos++; | |
185 | } | |
186 | return TRUE; | |
187 | } | |
188 | ||
4d174272 MW |
189 | ENUM(tty_color_names, TTY_RESET, TTY_BG_DEF, |
190 | "\e[0m", | |
191 | "\e[1m", | |
192 | "\e[4m", | |
193 | "\e[5m", | |
194 | "\e[30m", | |
195 | "\e[31m", | |
196 | "\e[32m", | |
197 | "\e[33m", | |
198 | "\e[34m", | |
199 | "\e[35m", | |
200 | "\e[36m", | |
201 | "\e[37m", | |
202 | "\e[39m", | |
203 | "\e[40m", | |
204 | "\e[41m", | |
205 | "\e[42m", | |
206 | "\e[43m", | |
207 | "\e[44m", | |
208 | "\e[45m", | |
209 | "\e[46m", | |
210 | "\e[47m", | |
211 | "\e[49m", | |
212 | ); | |
213 | ||
214 | /** | |
215 | * Get the escape string for a given TTY color, empty string on non-tty FILE | |
216 | */ | |
217 | char* tty_escape_get(int fd, tty_escape_t escape) | |
218 | { | |
219 | if (!isatty(fd)) | |
220 | { | |
221 | return ""; | |
222 | } | |
223 | switch (escape) | |
224 | { | |
225 | case TTY_RESET: | |
226 | case TTY_BOLD: | |
227 | case TTY_UNDERLINE: | |
228 | case TTY_BLINKING: | |
229 | case TTY_FG_BLACK: | |
230 | case TTY_FG_RED: | |
231 | case TTY_FG_GREEN: | |
232 | case TTY_FG_YELLOW: | |
233 | case TTY_FG_BLUE: | |
234 | case TTY_FG_MAGENTA: | |
235 | case TTY_FG_CYAN: | |
236 | case TTY_FG_WHITE: | |
237 | case TTY_FG_DEF: | |
238 | case TTY_BG_BLACK: | |
239 | case TTY_BG_RED: | |
240 | case TTY_BG_GREEN: | |
241 | case TTY_BG_YELLOW: | |
242 | case TTY_BG_BLUE: | |
243 | case TTY_BG_MAGENTA: | |
244 | case TTY_BG_CYAN: | |
245 | case TTY_BG_WHITE: | |
246 | case TTY_BG_DEF: | |
247 | return enum_to_name(tty_color_names, escape); | |
248 | /* warn if a excape code is missing */ | |
249 | } | |
250 | return ""; | |
251 | } | |
2a595276 TB |
252 | |
253 | /** | |
254 | * The size of the thread-specific error buffer | |
255 | */ | |
256 | #define STRERROR_BUF_LEN 256 | |
257 | ||
258 | /** | |
259 | * Key to store thread-specific error buffer | |
260 | */ | |
261 | static pthread_key_t strerror_buf_key; | |
262 | ||
263 | /** | |
264 | * Only initialize the key above once | |
265 | */ | |
266 | static pthread_once_t strerror_buf_key_once = PTHREAD_ONCE_INIT; | |
267 | ||
268 | /** | |
269 | * Create the key used for the thread-specific error buffer | |
270 | */ | |
271 | static void create_strerror_buf_key() | |
272 | { | |
273 | pthread_key_create(&strerror_buf_key, free); | |
274 | } | |
275 | ||
276 | /** | |
277 | * Retrieve the error buffer assigned to the current thread (or create it) | |
278 | */ | |
279 | static inline char *get_strerror_buf() | |
280 | { | |
281 | char *buf; | |
282 | ||
283 | pthread_once(&strerror_buf_key_once, create_strerror_buf_key); | |
284 | buf = pthread_getspecific(strerror_buf_key); | |
285 | if (!buf) | |
286 | { | |
287 | buf = malloc(STRERROR_BUF_LEN); | |
288 | pthread_setspecific(strerror_buf_key, buf); | |
289 | } | |
290 | return buf; | |
291 | } | |
292 | ||
293 | #ifdef HAVE_STRERROR_R | |
294 | /* | |
295 | * Described in header. | |
296 | */ | |
297 | const char *safe_strerror(int errnum) | |
298 | { | |
299 | char *buf = get_strerror_buf(), *msg; | |
300 | ||
301 | #ifdef STRERROR_R_CHAR_P | |
302 | /* char* version which may or may not return the original buffer */ | |
303 | msg = strerror_r(errnum, buf, STRERROR_BUF_LEN); | |
304 | #else | |
305 | /* int version returns 0 on success */ | |
306 | msg = strerror_r(errnum, buf, STRERROR_BUF_LEN) ? "Unknown error" : buf; | |
307 | #endif | |
308 | return msg; | |
309 | } | |
310 | #else /* HAVE_STRERROR_R */ | |
bbbffac3 TB |
311 | /* we actually wan't to call strerror(3) below */ |
312 | #undef strerror | |
2a595276 TB |
313 | /* |
314 | * Described in header. | |
315 | */ | |
316 | const char *safe_strerror(int errnum) | |
317 | { | |
318 | static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER; | |
319 | char *buf = get_strerror_buf(); | |
320 | ||
321 | /* use a mutex to ensure calling strerror(3) is thread-safe */ | |
322 | pthread_mutex_lock(&mutex); | |
323 | strncpy(buf, strerror(errnum), STRERROR_BUF_LEN); | |
324 | pthread_mutex_unlock(&mutex); | |
325 | buf[STRERROR_BUF_LEN - 1] = '\0'; | |
326 | return buf; | |
327 | } | |
328 | #endif /* HAVE_STRERROR_R */ | |
329 | ||
330 | ||
9a8fdc15 TB |
331 | #ifndef HAVE_CLOSEFROM |
332 | /** | |
333 | * Described in header. | |
334 | */ | |
335 | void closefrom(int lowfd) | |
336 | { | |
5051bd23 TB |
337 | char fd_dir[PATH_MAX]; |
338 | int maxfd, fd, len; | |
339 | ||
340 | /* try to close only open file descriptors on Linux... */ | |
341 | len = snprintf(fd_dir, sizeof(fd_dir), "/proc/%u/fd", getpid()); | |
4a4cf41b | 342 | if (len > 0 && len < sizeof(fd_dir) && access(fd_dir, F_OK) == 0) |
5051bd23 TB |
343 | { |
344 | enumerator_t *enumerator = enumerator_create_directory(fd_dir); | |
345 | if (enumerator) | |
346 | { | |
68fcf917 | 347 | char *rel; |
5051bd23 TB |
348 | while (enumerator->enumerate(enumerator, &rel, NULL, NULL)) |
349 | { | |
350 | fd = atoi(rel); | |
351 | if (fd >= lowfd) | |
352 | { | |
353 | close(fd); | |
354 | } | |
355 | } | |
356 | enumerator->destroy(enumerator); | |
357 | return; | |
358 | } | |
359 | } | |
360 | ||
361 | /* ...fall back to closing all fds otherwise */ | |
9a8fdc15 TB |
362 | maxfd = (int)sysconf(_SC_OPEN_MAX); |
363 | if (maxfd < 0) | |
364 | { | |
365 | maxfd = 256; | |
366 | } | |
367 | for (fd = lowfd; fd < maxfd; fd++) | |
368 | { | |
369 | close(fd); | |
370 | } | |
371 | } | |
372 | #endif /* HAVE_CLOSEFROM */ | |
373 | ||
3f310c0d MW |
374 | /** |
375 | * Return monotonic time | |
376 | */ | |
377 | time_t time_monotonic(timeval_t *tv) | |
378 | { | |
b2944d71 TB |
379 | #if defined(HAVE_CLOCK_GETTIME) && \ |
380 | (defined(HAVE_CONDATTR_CLOCK_MONOTONIC) || \ | |
381 | defined(HAVE_PTHREAD_COND_TIMEDWAIT_MONOTONIC)) | |
3d5818ec MW |
382 | /* as we use time_monotonic() for condvar operations, we use the |
383 | * monotonic time source only if it is also supported by pthread. */ | |
3f310c0d | 384 | timespec_t ts; |
7daf5226 | 385 | |
3f310c0d MW |
386 | if (clock_gettime(CLOCK_MONOTONIC, &ts) == 0) |
387 | { | |
388 | if (tv) | |
389 | { | |
390 | tv->tv_sec = ts.tv_sec; | |
391 | tv->tv_usec = ts.tv_nsec / 1000; | |
392 | } | |
393 | return ts.tv_sec; | |
394 | } | |
b2944d71 | 395 | #endif /* HAVE_CLOCK_GETTIME && (...) */ |
3f310c0d MW |
396 | /* Fallback to non-monotonic timestamps: |
397 | * On MAC OS X, creating monotonic timestamps is rather difficult. We | |
398 | * could use mach_absolute_time() and catch sleep/wakeup notifications. | |
3d5818ec MW |
399 | * We stick to the simpler (non-monotonic) gettimeofday() for now. |
400 | * But keep in mind: we need the same time source here as in condvar! */ | |
3f310c0d MW |
401 | if (!tv) |
402 | { | |
403 | return time(NULL); | |
404 | } | |
405 | if (gettimeofday(tv, NULL) != 0) | |
406 | { /* should actually never fail if passed pointers are valid */ | |
407 | return -1; | |
408 | } | |
409 | return tv->tv_sec; | |
410 | } | |
411 | ||
081ae2eb MW |
412 | /** |
413 | * return null | |
414 | */ | |
415 | void *return_null() | |
416 | { | |
417 | return NULL; | |
418 | } | |
419 | ||
da17b016 MW |
420 | /** |
421 | * returns TRUE | |
422 | */ | |
423 | bool return_true() | |
424 | { | |
425 | return TRUE; | |
426 | } | |
427 | ||
428 | /** | |
429 | * returns FALSE | |
430 | */ | |
431 | bool return_false() | |
432 | { | |
433 | return FALSE; | |
434 | } | |
435 | ||
502edf42 MW |
436 | /** |
437 | * returns FAILED | |
438 | */ | |
439 | status_t return_failed() | |
440 | { | |
441 | return FAILED; | |
442 | } | |
443 | ||
4755ab50 MW |
444 | /** |
445 | * returns SUCCESS | |
446 | */ | |
447 | status_t return_success() | |
448 | { | |
449 | return SUCCESS; | |
450 | } | |
451 | ||
233b853d MW |
452 | /** |
453 | * nop operation | |
454 | */ | |
455 | void nop() | |
456 | { | |
457 | } | |
458 | ||
efd0fe21 | 459 | #ifndef HAVE_GCC_ATOMIC_OPERATIONS |
efd0fe21 | 460 | |
552cc11b | 461 | /** |
7daf5226 | 462 | * We use a single mutex for all refcount variables. |
552cc11b MW |
463 | */ |
464 | static pthread_mutex_t ref_mutex = PTHREAD_MUTEX_INITIALIZER; | |
465 | ||
466 | /** | |
efd0fe21 | 467 | * Increase refcount |
552cc11b | 468 | */ |
3160b92a | 469 | refcount_t ref_get(refcount_t *ref) |
552cc11b | 470 | { |
3160b92a MW |
471 | refcount_t current; |
472 | ||
552cc11b | 473 | pthread_mutex_lock(&ref_mutex); |
3160b92a | 474 | current = ++(*ref); |
552cc11b | 475 | pthread_mutex_unlock(&ref_mutex); |
3160b92a MW |
476 | |
477 | return current; | |
552cc11b MW |
478 | } |
479 | ||
480 | /** | |
efd0fe21 | 481 | * Decrease refcount |
552cc11b MW |
482 | */ |
483 | bool ref_put(refcount_t *ref) | |
484 | { | |
485 | bool more_refs; | |
7daf5226 | 486 | |
552cc11b | 487 | pthread_mutex_lock(&ref_mutex); |
21f411b8 | 488 | more_refs = --(*ref) > 0; |
552cc11b MW |
489 | pthread_mutex_unlock(&ref_mutex); |
490 | return !more_refs; | |
491 | } | |
5317dd68 TB |
492 | |
493 | /** | |
494 | * Single mutex for all compare and swap operations. | |
495 | */ | |
496 | static pthread_mutex_t cas_mutex = PTHREAD_MUTEX_INITIALIZER; | |
497 | ||
498 | /** | |
499 | * Compare and swap if equal to old value | |
500 | */ | |
501 | #define _cas_impl(name, type) \ | |
502 | bool cas_##name(type *ptr, type oldval, type newval) \ | |
503 | { \ | |
504 | bool swapped; \ | |
505 | pthread_mutex_lock(&cas_mutex); \ | |
506 | if ((swapped = (*ptr == oldval))) { *ptr = newval; } \ | |
507 | pthread_mutex_unlock(&cas_mutex); \ | |
508 | return swapped; \ | |
509 | } | |
510 | ||
511 | _cas_impl(bool, bool) | |
512 | _cas_impl(ptr, void*) | |
513 | ||
efd0fe21 | 514 | #endif /* HAVE_GCC_ATOMIC_OPERATIONS */ |
552cc11b MW |
515 | |
516 | /** | |
d25ce370 | 517 | * Described in header. |
552cc11b | 518 | */ |
1b40b74d | 519 | int time_printf_hook(printf_hook_data_t *data, printf_hook_spec_t *spec, |
d25ce370 | 520 | const void *const *args) |
552cc11b MW |
521 | { |
522 | static const char* months[] = { | |
523 | "Jan", "Feb", "Mar", "Apr", "May", "Jun", | |
524 | "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" | |
525 | }; | |
526 | time_t *time = *((time_t**)(args[0])); | |
d25ce370 | 527 | bool utc = *((bool*)(args[1]));; |
552cc11b | 528 | struct tm t; |
7daf5226 | 529 | |
cf29fc07 | 530 | if (*time == UNDEFINED_TIME) |
552cc11b | 531 | { |
1b40b74d | 532 | return print_in_hook(data, "--- -- --:--:--%s----", |
d25ce370 | 533 | utc ? " UTC " : " "); |
552cc11b MW |
534 | } |
535 | if (utc) | |
536 | { | |
537 | gmtime_r(time, &t); | |
538 | } | |
539 | else | |
540 | { | |
541 | localtime_r(time, &t); | |
542 | } | |
1b40b74d | 543 | return print_in_hook(data, "%s %02d %02d:%02d:%02d%s%04d", |
d25ce370 TB |
544 | months[t.tm_mon], t.tm_mday, t.tm_hour, t.tm_min, |
545 | t.tm_sec, utc ? " UTC " : " ", t.tm_year + 1900); | |
552cc11b MW |
546 | } |
547 | ||
548 | /** | |
d25ce370 | 549 | * Described in header. |
552cc11b | 550 | */ |
1b40b74d | 551 | int time_delta_printf_hook(printf_hook_data_t *data, printf_hook_spec_t *spec, |
d25ce370 | 552 | const void *const *args) |
552cc11b MW |
553 | { |
554 | char* unit = "second"; | |
d25ce370 TB |
555 | time_t *arg1 = *((time_t**)(args[0])); |
556 | time_t *arg2 = *((time_t**)(args[1])); | |
876961cf | 557 | u_int64_t delta = llabs(*arg1 - *arg2); |
7daf5226 | 558 | |
552cc11b MW |
559 | if (delta > 2 * 60 * 60 * 24) |
560 | { | |
561 | delta /= 60 * 60 * 24; | |
562 | unit = "day"; | |
563 | } | |
564 | else if (delta > 2 * 60 * 60) | |
565 | { | |
566 | delta /= 60 * 60; | |
567 | unit = "hour"; | |
568 | } | |
569 | else if (delta > 2 * 60) | |
570 | { | |
571 | delta /= 60; | |
572 | unit = "minute"; | |
573 | } | |
1b40b74d | 574 | return print_in_hook(data, "%" PRIu64 " %s%s", delta, unit, |
876961cf | 575 | (delta == 1) ? "" : "s"); |
552cc11b MW |
576 | } |
577 | ||
578 | /** | |
579 | * Number of bytes per line to dump raw data | |
580 | */ | |
581 | #define BYTES_PER_LINE 16 | |
582 | ||
583 | static char hexdig_upper[] = "0123456789ABCDEF"; | |
584 | ||
585 | /** | |
d25ce370 | 586 | * Described in header. |
552cc11b | 587 | */ |
1b40b74d | 588 | int mem_printf_hook(printf_hook_data_t *data, |
d25ce370 | 589 | printf_hook_spec_t *spec, const void *const *args) |
552cc11b MW |
590 | { |
591 | char *bytes = *((void**)(args[0])); | |
817ab8a8 | 592 | u_int len = *((int*)(args[1])); |
7daf5226 | 593 | |
552cc11b MW |
594 | char buffer[BYTES_PER_LINE * 3]; |
595 | char ascii_buffer[BYTES_PER_LINE + 1]; | |
596 | char *buffer_pos = buffer; | |
597 | char *bytes_pos = bytes; | |
598 | char *bytes_roof = bytes + len; | |
599 | int line_start = 0; | |
600 | int i = 0; | |
601 | int written = 0; | |
7daf5226 | 602 | |
1b40b74d | 603 | written += print_in_hook(data, "=> %u bytes @ %p", len, bytes); |
7daf5226 | 604 | |
552cc11b MW |
605 | while (bytes_pos < bytes_roof) |
606 | { | |
607 | *buffer_pos++ = hexdig_upper[(*bytes_pos >> 4) & 0xF]; | |
608 | *buffer_pos++ = hexdig_upper[ *bytes_pos & 0xF]; | |
609 | ||
610 | ascii_buffer[i++] = | |
611 | (*bytes_pos > 31 && *bytes_pos < 127) ? *bytes_pos : '.'; | |
612 | ||
7daf5226 | 613 | if (++bytes_pos == bytes_roof || i == BYTES_PER_LINE) |
552cc11b MW |
614 | { |
615 | int padding = 3 * (BYTES_PER_LINE - i); | |
7daf5226 | 616 | |
552cc11b MW |
617 | while (padding--) |
618 | { | |
619 | *buffer_pos++ = ' '; | |
620 | } | |
621 | *buffer_pos++ = '\0'; | |
622 | ascii_buffer[i] = '\0'; | |
7daf5226 | 623 | |
1b40b74d | 624 | written += print_in_hook(data, "\n%4d: %s %s", |
323f9f99 | 625 | line_start, buffer, ascii_buffer); |
7daf5226 | 626 | |
552cc11b MW |
627 | buffer_pos = buffer; |
628 | line_start += BYTES_PER_LINE; | |
629 | i = 0; | |
630 | } | |
631 | else | |
632 | { | |
633 | *buffer_pos++ = ' '; | |
634 | } | |
635 | } | |
636 | return written; | |
637 | } |