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552cc11b | 1 | /* |
9a8fdc15 | 2 | * Copyright (C) 2008-2011 Tobias Brunner |
552cc11b MW |
3 | * Copyright (C) 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 | /** | |
18 | * @defgroup utils utils | |
19 | * @{ @ingroup libstrongswan | |
20 | */ | |
21 | ||
22 | #ifndef UTILS_H_ | |
23 | #define UTILS_H_ | |
24 | ||
25 | #include <sys/types.h> | |
26 | #include <stdlib.h> | |
27 | #include <stddef.h> | |
3f310c0d | 28 | #include <sys/time.h> |
0be12e35 MW |
29 | #include <arpa/inet.h> |
30 | #include <string.h> | |
552cc11b | 31 | |
fac3bfa5 | 32 | #include "enum.h" |
552cc11b | 33 | |
eab241fb AS |
34 | /** |
35 | * strongSwan program return codes | |
36 | */ | |
37 | #define SS_RC_LIBSTRONGSWAN_INTEGRITY 64 | |
38 | #define SS_RC_DAEMON_INTEGRITY 65 | |
3646c8a1 | 39 | #define SS_RC_INITIALIZATION_FAILED 66 |
eab241fb | 40 | |
5d8306de AS |
41 | #define SS_RC_FIRST SS_RC_LIBSTRONGSWAN_INTEGRITY |
42 | #define SS_RC_LAST SS_RC_INITIALIZATION_FAILED | |
43 | ||
552cc11b MW |
44 | /** |
45 | * Number of bits in a byte | |
46 | */ | |
47 | #define BITS_PER_BYTE 8 | |
48 | ||
49 | /** | |
50 | * Default length for various auxiliary text buffers | |
51 | */ | |
52 | #define BUF_LEN 512 | |
53 | ||
54 | /** | |
55 | * Macro compares two strings for equality | |
56 | */ | |
57 | #define streq(x,y) (strcmp(x, y) == 0) | |
58 | ||
59 | /** | |
7a3e0a63 | 60 | * Macro compares two strings for equality, length limited |
552cc11b MW |
61 | */ |
62 | #define strneq(x,y,len) (strncmp(x, y, len) == 0) | |
63 | ||
63176bbc AS |
64 | /** |
65 | * Macro compares two strings for equality ignoring case | |
66 | */ | |
67 | #define strcaseeq(x,y) (strcasecmp(x, y) == 0) | |
68 | ||
7a3e0a63 MW |
69 | /** |
70 | * Macro compares two strings for equality ignoring case, length limited | |
71 | */ | |
72 | #define strncaseeq(x,y,len) (strncasecmp(x, y, len) == 0) | |
73 | ||
1038d9fe MW |
74 | /** |
75 | * NULL-safe strdup variant | |
76 | */ | |
77 | #define strdupnull(x) ({ char *_x = x; _x ? strdup(_x) : NULL; }) | |
78 | ||
552cc11b MW |
79 | /** |
80 | * Macro compares two binary blobs for equality | |
81 | */ | |
82 | #define memeq(x,y,len) (memcmp(x, y, len) == 0) | |
83 | ||
84 | /** | |
85 | * Macro gives back larger of two values. | |
86 | */ | |
e822fc57 TB |
87 | #define max(x,y) ({ \ |
88 | typeof(x) _x = (x); \ | |
89 | typeof(y) _y = (y); \ | |
90 | _x > _y ? _x : _y; }) | |
91 | ||
552cc11b MW |
92 | |
93 | /** | |
94 | * Macro gives back smaller of two values. | |
95 | */ | |
e822fc57 TB |
96 | #define min(x,y) ({ \ |
97 | typeof(x) _x = (x); \ | |
98 | typeof(y) _y = (y); \ | |
99 | _x < _y ? _x : _y; }) | |
552cc11b MW |
100 | |
101 | /** | |
102 | * Call destructor of an object, if object != NULL | |
103 | */ | |
104 | #define DESTROY_IF(obj) if (obj) (obj)->destroy(obj) | |
105 | ||
106 | /** | |
107 | * Call offset destructor of an object, if object != NULL | |
108 | */ | |
109 | #define DESTROY_OFFSET_IF(obj, offset) if (obj) obj->destroy_offset(obj, offset); | |
110 | ||
111 | /** | |
112 | * Call function destructor of an object, if object != NULL | |
113 | */ | |
114 | #define DESTROY_FUNCTION_IF(obj, fn) if (obj) obj->destroy_function(obj, fn); | |
115 | ||
116 | /** | |
117 | * Debug macro to follow control flow | |
118 | */ | |
119 | #define POS printf("%s, line %d\n", __FILE__, __LINE__) | |
120 | ||
74eed73a MW |
121 | /** |
122 | * Object allocation/initialization macro, using designated initializer. | |
123 | */ | |
e3c881af MW |
124 | #define INIT(this, ...) ({ (this) = malloc(sizeof(*(this))); \ |
125 | *(this) = (typeof(*(this))){ __VA_ARGS__ }; \ | |
126 | (this); }) | |
74eed73a | 127 | |
1a1ff9d1 MW |
128 | /** |
129 | * Method declaration/definition macro, providing private and public interface. | |
130 | * | |
131 | * Defines a method name with this as first parameter and a return value ret, | |
132 | * and an alias for this method with a _ prefix, having the this argument | |
133 | * safely casted to the public interface iface. | |
134 | * _name is provided a function pointer, but will get optimized out by GCC. | |
135 | */ | |
136 | #define METHOD(iface, name, ret, this, ...) \ | |
23d2bf84 MW |
137 | static ret name(union {iface *_public; this;} \ |
138 | __attribute__((transparent_union)), ##__VA_ARGS__); \ | |
1abab9ec | 139 | static const typeof(name) *_##name = (const typeof(name)*)name; \ |
23d2bf84 MW |
140 | static ret name(this, ##__VA_ARGS__) |
141 | ||
142 | /** | |
143 | * Same as METHOD(), but is defined for two public interfaces. | |
144 | */ | |
145 | #define METHOD2(iface1, iface2, name, ret, this, ...) \ | |
146 | static ret name(union {iface1 *_public1; iface2 *_public2; this;} \ | |
147 | __attribute__((transparent_union)), ##__VA_ARGS__); \ | |
1abab9ec | 148 | static const typeof(name) *_##name = (const typeof(name)*)name; \ |
1a1ff9d1 MW |
149 | static ret name(this, ##__VA_ARGS__) |
150 | ||
7ba89ccd MW |
151 | /** |
152 | * Architecture independent bitfield definition helpers (at least with GCC). | |
153 | * | |
154 | * Defines a bitfield with a type t and a fixed size of bitfield members, e.g.: | |
155 | * BITFIELD2(u_int8_t, | |
156 | * low: 4, | |
157 | * high: 4, | |
158 | * ) flags; | |
159 | * The member defined first placed at bit 0. | |
160 | */ | |
161 | #if BYTE_ORDER == LITTLE_ENDIAN | |
162 | #define BITFIELD2(t, a, b,...) struct { t a; t b; __VA_ARGS__} | |
163 | #define BITFIELD3(t, a, b, c,...) struct { t a; t b; t c; __VA_ARGS__} | |
164 | #define BITFIELD4(t, a, b, c, d,...) struct { t a; t b; t c; t d; __VA_ARGS__} | |
165 | #define BITFIELD5(t, a, b, c, d, e,...) struct { t a; t b; t c; t d; t e; __VA_ARGS__} | |
166 | #elif BYTE_ORDER == BIG_ENDIAN | |
167 | #define BITFIELD2(t, a, b,...) struct { t b; t a; __VA_ARGS__} | |
168 | #define BITFIELD3(t, a, b, c,...) struct { t c; t b; t a; __VA_ARGS__} | |
169 | #define BITFIELD4(t, a, b, c, d,...) struct { t d; t c; t b; t a; __VA_ARGS__} | |
170 | #define BITFIELD5(t, a, b, c, d, e,...) struct { t e; t d; t c; t b; t a; __VA_ARGS__} | |
171 | #endif | |
172 | ||
552cc11b MW |
173 | /** |
174 | * Macro to allocate a sized type. | |
175 | */ | |
176 | #define malloc_thing(thing) ((thing*)malloc(sizeof(thing))) | |
177 | ||
fca4d3ee MW |
178 | /** |
179 | * Get the number of elements in an array | |
180 | */ | |
181 | #define countof(array) (sizeof(array)/sizeof(array[0])) | |
182 | ||
479f2950 MW |
183 | /** |
184 | * Ignore result of functions tagged with warn_unused_result attributes | |
185 | */ | |
d0230850 | 186 | #define ignore_result(call) { if(call){}; } |
479f2950 | 187 | |
552cc11b MW |
188 | /** |
189 | * Assign a function as a class method | |
190 | */ | |
191 | #define ASSIGN(method, function) (method = (typeof(method))function) | |
192 | ||
193 | /** | |
194 | * time_t not defined | |
195 | */ | |
196 | #define UNDEFINED_TIME 0 | |
197 | ||
9f0327e6 AS |
198 | /** |
199 | * Maximum time since epoch causing wrap-around on Jan 19 03:14:07 UTC 2038 | |
200 | */ | |
201 | #define TIME_32_BIT_SIGNED_MAX 0x7fffffff | |
202 | ||
552cc11b MW |
203 | /** |
204 | * General purpose boolean type. | |
205 | */ | |
a9f56adb TB |
206 | #ifdef HAVE_STDBOOL_H |
207 | # include <stdbool.h> | |
208 | #else | |
209 | # ifndef HAVE__BOOL | |
210 | # define _Bool signed char | |
211 | # endif /* HAVE__BOOL */ | |
212 | # define bool _Bool | |
213 | # define false 0 | |
214 | # define true 1 | |
215 | # define __bool_true_false_are_defined 1 | |
216 | #endif /* HAVE_STDBOOL_H */ | |
092a9b88 | 217 | #ifndef FALSE |
a9f56adb | 218 | # define FALSE false |
092a9b88 MW |
219 | #endif /* FALSE */ |
220 | #ifndef TRUE | |
a9f56adb | 221 | # define TRUE true |
092a9b88 | 222 | #endif /* TRUE */ |
552cc11b | 223 | |
cc396286 TB |
224 | /** |
225 | * define some missing fixed width int types on OpenSolaris. | |
226 | * TODO: since the uintXX_t types are defined by the C99 standard we should | |
227 | * probably use those anyway | |
228 | */ | |
229 | #ifdef __sun | |
230 | #include <stdint.h> | |
231 | typedef uint8_t u_int8_t; | |
232 | typedef uint16_t u_int16_t; | |
233 | typedef uint32_t u_int32_t; | |
234 | typedef uint64_t u_int64_t; | |
235 | #endif | |
236 | ||
552cc11b MW |
237 | typedef enum status_t status_t; |
238 | ||
239 | /** | |
240 | * Return values of function calls. | |
241 | */ | |
242 | enum status_t { | |
243 | /** | |
244 | * Call succeeded. | |
245 | */ | |
246 | SUCCESS, | |
7daf5226 | 247 | |
552cc11b MW |
248 | /** |
249 | * Call failed. | |
250 | */ | |
251 | FAILED, | |
7daf5226 | 252 | |
552cc11b MW |
253 | /** |
254 | * Out of resources. | |
255 | */ | |
256 | OUT_OF_RES, | |
7daf5226 | 257 | |
552cc11b MW |
258 | /** |
259 | * The suggested operation is already done | |
260 | */ | |
261 | ALREADY_DONE, | |
7daf5226 | 262 | |
552cc11b MW |
263 | /** |
264 | * Not supported. | |
265 | */ | |
266 | NOT_SUPPORTED, | |
7daf5226 | 267 | |
552cc11b MW |
268 | /** |
269 | * One of the arguments is invalid. | |
270 | */ | |
271 | INVALID_ARG, | |
7daf5226 | 272 | |
552cc11b MW |
273 | /** |
274 | * Something could not be found. | |
275 | */ | |
276 | NOT_FOUND, | |
7daf5226 | 277 | |
552cc11b MW |
278 | /** |
279 | * Error while parsing. | |
280 | */ | |
281 | PARSE_ERROR, | |
7daf5226 | 282 | |
552cc11b MW |
283 | /** |
284 | * Error while verifying. | |
285 | */ | |
286 | VERIFY_ERROR, | |
7daf5226 | 287 | |
552cc11b MW |
288 | /** |
289 | * Object in invalid state. | |
290 | */ | |
291 | INVALID_STATE, | |
7daf5226 | 292 | |
552cc11b MW |
293 | /** |
294 | * Destroy object which called method belongs to. | |
295 | */ | |
296 | DESTROY_ME, | |
7daf5226 | 297 | |
552cc11b MW |
298 | /** |
299 | * Another call to the method is required. | |
300 | */ | |
301 | NEED_MORE, | |
302 | }; | |
303 | ||
304 | /** | |
305 | * enum_names for type status_t. | |
306 | */ | |
307 | extern enum_name_t *status_names; | |
308 | ||
309 | /** | |
310 | * deprecated pluto style return value: | |
311 | * error message, NULL for success | |
312 | */ | |
313 | typedef const char *err_t; | |
314 | ||
315 | /** | |
316 | * Handle struct timeval like an own type. | |
317 | */ | |
318 | typedef struct timeval timeval_t; | |
319 | ||
320 | /** | |
321 | * Handle struct timespec like an own type. | |
322 | */ | |
323 | typedef struct timespec timespec_t; | |
324 | ||
325 | /** | |
326 | * Handle struct chunk_t like an own type. | |
327 | */ | |
328 | typedef struct sockaddr sockaddr_t; | |
329 | ||
330 | /** | |
331 | * Clone a data to a newly allocated buffer | |
332 | */ | |
333 | void *clalloc(void *pointer, size_t size); | |
334 | ||
335 | /** | |
336 | * Same as memcpy, but XORs src into dst instead of copy | |
337 | */ | |
338 | void memxor(u_int8_t dest[], u_int8_t src[], size_t n); | |
339 | ||
ed678b52 MW |
340 | /** |
341 | * Safely overwrite n bytes of memory at ptr with zero, non-inlining variant. | |
342 | */ | |
343 | void memwipe_noinline(void *ptr, size_t n); | |
344 | ||
345 | /** | |
346 | * Safely overwrite n bytes of memory at ptr with zero, inlining variant. | |
347 | */ | |
348 | static inline void memwipe_inline(void *ptr, size_t n) | |
349 | { | |
350 | volatile char *c = (volatile char*)ptr; | |
d45b242b | 351 | size_t m, i; |
ed678b52 MW |
352 | |
353 | /* byte wise until long aligned */ | |
d45b242b | 354 | for (i = 0; (uintptr_t)&c[i] % sizeof(long) && i < n; i++) |
ed678b52 MW |
355 | { |
356 | c[i] = 0; | |
357 | } | |
d45b242b MW |
358 | /* word wise */ |
359 | if (n >= sizeof(long)) | |
ed678b52 | 360 | { |
d45b242b MW |
361 | for (m = n - sizeof(long); i <= m; i += sizeof(long)) |
362 | { | |
363 | *(volatile long*)&c[i] = 0; | |
364 | } | |
ed678b52 MW |
365 | } |
366 | /* byte wise of the rest */ | |
367 | for (; i < n; i++) | |
368 | { | |
369 | c[i] = 0; | |
370 | } | |
371 | } | |
372 | ||
373 | /** | |
374 | * Safely overwrite n bytes of memory at ptr with zero, auto-inlining variant. | |
375 | */ | |
376 | static inline void memwipe(void *ptr, size_t n) | |
377 | { | |
378 | if (__builtin_constant_p(n)) | |
379 | { | |
380 | memwipe_inline(ptr, n); | |
381 | } | |
382 | else | |
383 | { | |
384 | memwipe_noinline(ptr, n); | |
385 | } | |
386 | } | |
387 | ||
81736d7d TB |
388 | /** |
389 | * A variant of strstr with the characteristics of memchr, where haystack is not | |
390 | * a null-terminated string but simply a memory area of length n. | |
391 | */ | |
392 | void *memstr(const void *haystack, const char *needle, size_t n); | |
393 | ||
d543d9ca TB |
394 | /** |
395 | * Translates the characters in the given string, searching for characters | |
396 | * in 'from' and mapping them to characters in 'to'. | |
397 | * The two characters sets 'from' and 'to' must contain the same number of | |
398 | * characters. | |
399 | */ | |
400 | char *translate(char *str, const char *from, const char *to); | |
401 | ||
6c20579a | 402 | /** |
7daf5226 | 403 | * Creates a directory and all required parent directories. |
6c20579a | 404 | * |
3f310c0d | 405 | * @param path path to the new directory |
7daf5226 | 406 | * @param mode permissions of the new directory/directories |
6c20579a TB |
407 | * @return TRUE on success |
408 | */ | |
409 | bool mkdir_p(const char *path, mode_t mode); | |
410 | ||
9a8fdc15 TB |
411 | #ifndef HAVE_CLOSEFROM |
412 | /** | |
413 | * Close open file descriptors greater than or equal to lowfd. | |
414 | * | |
415 | * @param lowfd start closing file descriptoros from here | |
416 | */ | |
417 | void closefrom(int lowfd); | |
418 | #endif | |
419 | ||
3f310c0d MW |
420 | /** |
421 | * Get a timestamp from a monotonic time source. | |
422 | * | |
423 | * While the time()/gettimeofday() functions are affected by leap seconds | |
424 | * and system time changes, this function returns ever increasing monotonic | |
425 | * time stamps. | |
426 | * | |
427 | * @param tv timeval struct receiving monotonic timestamps, or NULL | |
428 | * @return monotonic timestamp in seconds | |
429 | */ | |
430 | time_t time_monotonic(timeval_t *tv); | |
431 | ||
081ae2eb MW |
432 | /** |
433 | * returns null | |
434 | */ | |
435 | void *return_null(); | |
436 | ||
233b853d MW |
437 | /** |
438 | * No-Operation function | |
439 | */ | |
440 | void nop(); | |
441 | ||
da17b016 MW |
442 | /** |
443 | * returns TRUE | |
444 | */ | |
445 | bool return_true(); | |
446 | ||
447 | /** | |
448 | * returns FALSE | |
449 | */ | |
450 | bool return_false(); | |
451 | ||
502edf42 MW |
452 | /** |
453 | * returns FAILED | |
454 | */ | |
455 | status_t return_failed(); | |
456 | ||
0be12e35 MW |
457 | /** |
458 | * Write a 16-bit host order value in network order to an unaligned address. | |
459 | * | |
460 | * @param host host order 16-bit value | |
461 | * @param network unaligned address to write network order value to | |
462 | */ | |
463 | static inline void htoun16(void *network, u_int16_t host) | |
464 | { | |
dbee988e MW |
465 | char *unaligned = (char*)network; |
466 | ||
0be12e35 | 467 | host = htons(host); |
dbee988e | 468 | memcpy(unaligned, &host, sizeof(host)); |
0be12e35 MW |
469 | } |
470 | ||
471 | /** | |
472 | * Write a 32-bit host order value in network order to an unaligned address. | |
473 | * | |
474 | * @param host host order 32-bit value | |
475 | * @param network unaligned address to write network order value to | |
476 | */ | |
477 | static inline void htoun32(void *network, u_int32_t host) | |
478 | { | |
dbee988e MW |
479 | char *unaligned = (char*)network; |
480 | ||
0be12e35 | 481 | host = htonl(host); |
dbee988e | 482 | memcpy((char*)unaligned, &host, sizeof(host)); |
0be12e35 MW |
483 | } |
484 | ||
cd419ae4 AS |
485 | /** |
486 | * Write a 64-bit host order value in network order to an unaligned address. | |
487 | * | |
65840cc4 | 488 | * @param host host order 64-bit value |
cd419ae4 AS |
489 | * @param network unaligned address to write network order value to |
490 | */ | |
491 | static inline void htoun64(void *network, u_int64_t host) | |
492 | { | |
493 | char *unaligned = (char*)network; | |
494 | u_int32_t high_part, low_part; | |
495 | ||
496 | high_part = host >> 32; | |
497 | high_part = htonl(high_part); | |
498 | low_part = host & 0xFFFFFFFFLL; | |
499 | low_part = htonl(low_part); | |
500 | ||
501 | memcpy(unaligned, &high_part, sizeof(high_part)); | |
502 | unaligned += sizeof(high_part); | |
503 | memcpy(unaligned, &low_part, sizeof(low_part)); | |
504 | } | |
505 | ||
0be12e35 MW |
506 | /** |
507 | * Read a 16-bit value in network order from an unaligned address to host order. | |
508 | * | |
509 | * @param network unaligned address to read network order value from | |
510 | * @return host order value | |
511 | */ | |
512 | static inline u_int16_t untoh16(void *network) | |
513 | { | |
dbee988e | 514 | char *unaligned = (char*)network; |
0be12e35 MW |
515 | u_int16_t tmp; |
516 | ||
dbee988e | 517 | memcpy(&tmp, unaligned, sizeof(tmp)); |
0be12e35 MW |
518 | return ntohs(tmp); |
519 | } | |
520 | ||
521 | /** | |
522 | * Read a 32-bit value in network order from an unaligned address to host order. | |
523 | * | |
524 | * @param network unaligned address to read network order value from | |
525 | * @return host order value | |
526 | */ | |
527 | static inline u_int32_t untoh32(void *network) | |
528 | { | |
dbee988e | 529 | char *unaligned = (char*)network; |
0be12e35 MW |
530 | u_int32_t tmp; |
531 | ||
dbee988e | 532 | memcpy(&tmp, unaligned, sizeof(tmp)); |
f8f4f31a | 533 | return ntohl(tmp); |
0be12e35 MW |
534 | } |
535 | ||
cd419ae4 AS |
536 | /** |
537 | * Read a 64-bit value in network order from an unaligned address to host order. | |
538 | * | |
539 | * @param network unaligned address to read network order value from | |
540 | * @return host order value | |
541 | */ | |
542 | static inline u_int64_t untoh64(void *network) | |
543 | { | |
544 | char *unaligned = (char*)network; | |
545 | u_int32_t high_part, low_part; | |
546 | ||
547 | memcpy(&high_part, unaligned, sizeof(high_part)); | |
548 | unaligned += sizeof(high_part); | |
549 | memcpy(&low_part, unaligned, sizeof(low_part)); | |
550 | ||
551 | high_part = ntohl(high_part); | |
552 | low_part = ntohl(low_part); | |
553 | ||
554 | return (((u_int64_t)high_part) << 32) + low_part; | |
555 | } | |
556 | ||
552cc11b MW |
557 | /** |
558 | * Special type to count references | |
559 | */ | |
560 | typedef volatile u_int refcount_t; | |
561 | ||
efd0fe21 MW |
562 | |
563 | #ifdef HAVE_GCC_ATOMIC_OPERATIONS | |
564 | ||
565 | #define ref_get(ref) {__sync_fetch_and_add(ref, 1); } | |
566 | #define ref_put(ref) (!__sync_sub_and_fetch(ref, 1)) | |
567 | ||
568 | #else /* !HAVE_GCC_ATOMIC_OPERATIONS */ | |
569 | ||
552cc11b MW |
570 | /** |
571 | * Get a new reference. | |
572 | * | |
573 | * Increments the reference counter atomic. | |
574 | * | |
575 | * @param ref pointer to ref counter | |
576 | */ | |
577 | void ref_get(refcount_t *ref); | |
578 | ||
579 | /** | |
580 | * Put back a unused reference. | |
581 | * | |
7daf5226 | 582 | * Decrements the reference counter atomic and |
552cc11b MW |
583 | * says if more references available. |
584 | * | |
585 | * @param ref pointer to ref counter | |
586 | * @return TRUE if no more references counted | |
587 | */ | |
588 | bool ref_put(refcount_t *ref); | |
589 | ||
efd0fe21 MW |
590 | #endif /* HAVE_GCC_ATOMIC_OPERATIONS */ |
591 | ||
552cc11b | 592 | /** |
d25ce370 | 593 | * printf hook for time_t. |
552cc11b | 594 | * |
7daf5226 | 595 | * Arguments are: |
323f9f99 | 596 | * time_t* time, bool utc |
552cc11b | 597 | */ |
d25ce370 TB |
598 | int time_printf_hook(char *dst, size_t len, printf_hook_spec_t *spec, |
599 | const void *const *args); | |
552cc11b MW |
600 | |
601 | /** | |
d25ce370 | 602 | * printf hook for time_t deltas. |
552cc11b | 603 | * |
7daf5226 | 604 | * Arguments are: |
323f9f99 | 605 | * time_t* begin, time_t* end |
552cc11b | 606 | */ |
d25ce370 TB |
607 | int time_delta_printf_hook(char *dst, size_t len, printf_hook_spec_t *spec, |
608 | const void *const *args); | |
552cc11b MW |
609 | |
610 | /** | |
d25ce370 | 611 | * printf hook for memory areas. |
552cc11b | 612 | * |
7daf5226 | 613 | * Arguments are: |
323f9f99 | 614 | * u_char *ptr, int len |
552cc11b | 615 | */ |
d25ce370 TB |
616 | int mem_printf_hook(char *dst, size_t len, printf_hook_spec_t *spec, |
617 | const void *const *args); | |
552cc11b | 618 | |
1490ff4d | 619 | #endif /** UTILS_H_ @}*/ |