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20f9a2a1 M |
1 | //----------------------------------------------------------------------------- |
2 | // Copyright (C) 2010 iZsh <izsh at fail0verflow.com> | |
3 | // | |
4 | // This code is licensed to you under the terms of the GNU GPL, version 2 or, | |
5 | // at your option, any later version. See the LICENSE.txt file for the text of | |
6 | // the license. | |
7 | //----------------------------------------------------------------------------- | |
8 | // utilities | |
9 | //----------------------------------------------------------------------------- | |
10 | ||
11 | #include "util.h" | |
ace26dbd | 12 | #define MAX_BIN_BREAK_LENGTH (3072+384+1) |
534983d7 | 13 | |
cb64309e | 14 | #ifndef _WIN32 |
873014de M |
15 | #include <termios.h> |
16 | #include <sys/ioctl.h> | |
79544b28 | 17 | |
ace26dbd | 18 | |
f397b5cc M |
19 | int ukbhit(void) |
20 | { | |
21 | int cnt = 0; | |
22 | int error; | |
23 | static struct termios Otty, Ntty; | |
24 | ||
25 | ||
26 | tcgetattr( 0, &Otty); | |
27 | Ntty = Otty; | |
28 | ||
29 | Ntty.c_iflag = 0; /* input mode */ | |
30 | Ntty.c_oflag = 0; /* output mode */ | |
31 | Ntty.c_lflag &= ~ICANON; /* raw mode */ | |
32 | Ntty.c_cc[VMIN] = CMIN; /* minimum time to wait */ | |
33 | Ntty.c_cc[VTIME] = CTIME; /* minimum characters to wait for */ | |
34 | ||
35 | if (0 == (error = tcsetattr(0, TCSANOW, &Ntty))) { | |
36 | error += ioctl(0, FIONREAD, &cnt); | |
37 | error += tcsetattr(0, TCSANOW, &Otty); | |
38 | } | |
39 | ||
40 | return ( error == 0 ? cnt : -1 ); | |
41 | } | |
42 | ||
43 | #else | |
44 | #include <conio.h> | |
45 | int ukbhit(void) { | |
46 | return kbhit(); | |
47 | } | |
48 | #endif | |
49 | ||
55acbb2a | 50 | // log files functions |
b915fda3 | 51 | void AddLogLine(char *file, char *extData, char *c) { |
55acbb2a | 52 | FILE *fLog = NULL; |
b915fda3 | 53 | char filename[FILE_PATH_SIZE] = {0x00}; |
54 | int len = 0; | |
55 | ||
56 | len = strlen(file); | |
57 | if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE; | |
58 | memcpy(filename, file, len); | |
59 | ||
60 | fLog = fopen(filename, "a"); | |
55acbb2a | 61 | if (!fLog) { |
b915fda3 | 62 | printf("Could not append log file %s", filename); |
55acbb2a M |
63 | return; |
64 | } | |
65 | ||
66 | fprintf(fLog, "%s", extData); | |
67 | fprintf(fLog, "%s\n", c); | |
68 | fclose(fLog); | |
69 | } | |
70 | ||
71 | void AddLogHex(char *fileName, char *extData, const uint8_t * data, const size_t len){ | |
72 | AddLogLine(fileName, extData, sprint_hex(data, len)); | |
73 | } | |
74 | ||
75 | void AddLogUint64(char *fileName, char *extData, const uint64_t data) { | |
76 | char buf[100] = {0}; | |
77 | sprintf(buf, "%x%x", (unsigned int)((data & 0xFFFFFFFF00000000) >> 32), (unsigned int)(data & 0xFFFFFFFF)); | |
78 | AddLogLine(fileName, extData, buf); | |
79 | } | |
80 | ||
81 | void AddLogCurrentDT(char *fileName) { | |
82 | char buff[20]; | |
83 | struct tm *curTime; | |
84 | ||
85 | time_t now = time(0); | |
86 | curTime = gmtime(&now); | |
87 | ||
88 | strftime (buff, sizeof(buff), "%Y-%m-%d %H:%M:%S", curTime); | |
89 | AddLogLine(fileName, "\nanticollision: ", buff); | |
90 | } | |
91 | ||
e0c635d1 | 92 | void FillFileNameByUID(char *fileName, uint8_t * uid, char *ext, int byteCount) { |
55acbb2a M |
93 | char * fnameptr = fileName; |
94 | memset(fileName, 0x00, 200); | |
95 | ||
e0c635d1 | 96 | for (int j = 0; j < byteCount; j++, fnameptr += 2) |
55acbb2a M |
97 | sprintf(fnameptr, "%02x", uid[j]); |
98 | sprintf(fnameptr, "%s", ext); | |
55acbb2a M |
99 | } |
100 | ||
101 | // printing and converting functions | |
f397b5cc | 102 | |
534983d7 | 103 | void print_hex(const uint8_t * data, const size_t len) |
104 | { | |
105 | size_t i; | |
106 | ||
107 | for (i=0; i < len; i++) | |
108 | printf("%02x ", data[i]); | |
109 | ||
110 | printf("\n"); | |
111 | } | |
112 | ||
4973f23d | 113 | char *sprint_hex(const uint8_t *data, const size_t len) { |
b915fda3 | 114 | |
115 | int maxLen = ( len > 1024/3) ? 1024/3 : len; | |
534983d7 | 116 | static char buf[1024]; |
c585a5cf | 117 | memset(buf, 0x00, 1024); |
4973f23d | 118 | char *tmp = buf; |
534983d7 | 119 | size_t i; |
120 | ||
b915fda3 | 121 | for (i=0; i < maxLen; ++i, tmp += 3) |
534983d7 | 122 | sprintf(tmp, "%02x ", data[i]); |
123 | ||
124 | return buf; | |
125 | } | |
f89c7050 | 126 | |
2767fc02 | 127 | char *sprint_bin_break(const uint8_t *data, const size_t len, const uint8_t breaks) { |
ace26dbd | 128 | // make sure we don't go beyond our char array memory |
129 | int max_len = ( len+(len/breaks) > MAX_BIN_BREAK_LENGTH ) ? MAX_BIN_BREAK_LENGTH : len+(len/breaks); | |
130 | static char buf[MAX_BIN_BREAK_LENGTH]; // 3072 + end of line characters if broken at 8 bits | |
131 | //clear memory | |
132 | memset(buf, 0x00, sizeof(buf)); | |
2767fc02 | 133 | char *tmp = buf; |
79544b28 | 134 | |
ace26dbd | 135 | size_t in_index = 0; |
136 | // loop through the out_index to make sure we don't go too far | |
137 | for (size_t out_index=0; out_index < max_len; out_index++) { | |
138 | // set character | |
139 | sprintf(tmp++, "%u", data[in_index]); | |
140 | // check if a line break is needed | |
141 | if ( (breaks > 0) && !((in_index+1) % breaks) && (out_index+1 != max_len) ) { | |
142 | // increment and print line break | |
143 | out_index++; | |
2767fc02 | 144 | sprintf(tmp++, "%s","\n"); |
ace26dbd | 145 | } |
146 | in_index++; | |
2767fc02 | 147 | } |
79544b28 | 148 | |
149 | return buf; | |
150 | } | |
151 | ||
2767fc02 | 152 | char *sprint_bin(const uint8_t *data, const size_t len) { |
153 | return sprint_bin_break(data, len, 0); | |
154 | } | |
f89c7050 M |
155 | void num_to_bytes(uint64_t n, size_t len, uint8_t* dest) |
156 | { | |
157 | while (len--) { | |
158 | dest[len] = (uint8_t) n; | |
159 | n >>= 8; | |
160 | } | |
161 | } | |
162 | ||
163 | uint64_t bytes_to_num(uint8_t* src, size_t len) | |
164 | { | |
165 | uint64_t num = 0; | |
166 | while (len--) | |
167 | { | |
168 | num = (num << 8) | (*src); | |
169 | src++; | |
170 | } | |
171 | return num; | |
172 | } | |
f397b5cc | 173 | |
709665b5 | 174 | void num_to_bytebits(uint64_t n, size_t len, uint8_t *dest) { |
175 | while (len--) { | |
176 | dest[len] = n & 1; | |
177 | n >>= 1; | |
178 | } | |
179 | } | |
180 | ||
f9848fd6 | 181 | // aa,bb,cc,dd,ee,ff,gg,hh, ii,jj,kk,ll,mm,nn,oo,pp |
182 | // to | |
183 | // hh,gg,ff,ee,dd,cc,bb,aa, pp,oo,nn,mm,ll,kk,jj,ii | |
184 | // up to 64 bytes or 512 bits | |
2b3af97d | 185 | uint8_t *SwapEndian64(const uint8_t *src, const size_t len, const uint8_t blockSize){ |
186 | static uint8_t buf[64]; | |
187 | memset(buf, 0x00, 64); | |
188 | uint8_t *tmp = buf; | |
189 | for (uint8_t block=0; block < (uint8_t)(len/blockSize); block++){ | |
190 | for (size_t i = 0; i < blockSize; i++){ | |
191 | tmp[i+(blockSize*block)] = src[(blockSize-1-i)+(blockSize*block)]; | |
f9848fd6 | 192 | } |
193 | } | |
2b3af97d | 194 | return tmp; |
f9848fd6 | 195 | } |
196 | ||
79544b28 | 197 | //assumes little endian |
198 | char * printBits(size_t const size, void const * const ptr) | |
199 | { | |
200 | unsigned char *b = (unsigned char*) ptr; | |
201 | unsigned char byte; | |
202 | static char buf[1024]; | |
203 | char * tmp = buf; | |
204 | int i, j; | |
205 | ||
206 | for (i=size-1;i>=0;i--) | |
207 | { | |
208 | for (j=7;j>=0;j--) | |
209 | { | |
210 | byte = b[i] & (1<<j); | |
211 | byte >>= j; | |
212 | sprintf(tmp, "%u", byte); | |
213 | tmp++; | |
214 | } | |
215 | } | |
216 | return buf; | |
217 | } | |
218 | ||
9ca155ba M |
219 | // ------------------------------------------------------------------------- |
220 | // string parameters lib | |
221 | // ------------------------------------------------------------------------- | |
222 | ||
f397b5cc M |
223 | // ------------------------------------------------------------------------- |
224 | // line - param line | |
225 | // bg, en - symbol numbers in param line of beginning an ending parameter | |
226 | // paramnum - param number (from 0) | |
227 | // ------------------------------------------------------------------------- | |
228 | int param_getptr(const char *line, int *bg, int *en, int paramnum) | |
229 | { | |
230 | int i; | |
231 | int len = strlen(line); | |
232 | ||
233 | *bg = 0; | |
234 | *en = 0; | |
235 | ||
236 | // skip spaces | |
237 | while (line[*bg] ==' ' || line[*bg]=='\t') (*bg)++; | |
238 | if (*bg >= len) { | |
239 | return 1; | |
240 | } | |
241 | ||
242 | for (i = 0; i < paramnum; i++) { | |
243 | while (line[*bg]!=' ' && line[*bg]!='\t' && line[*bg] != '\0') (*bg)++; | |
244 | while (line[*bg]==' ' || line[*bg]=='\t') (*bg)++; | |
245 | ||
246 | if (line[*bg] == '\0') return 1; | |
247 | } | |
248 | ||
249 | *en = *bg; | |
250 | while (line[*en] != ' ' && line[*en] != '\t' && line[*en] != '\0') (*en)++; | |
251 | ||
252 | (*en)--; | |
253 | ||
254 | return 0; | |
255 | } | |
256 | ||
31abe49f | 257 | |
f397b5cc M |
258 | char param_getchar(const char *line, int paramnum) |
259 | { | |
260 | int bg, en; | |
261 | ||
262 | if (param_getptr(line, &bg, &en, paramnum)) return 0x00; | |
263 | ||
264 | return line[bg]; | |
265 | } | |
266 | ||
267 | uint8_t param_get8(const char *line, int paramnum) | |
268 | { | |
269 | return param_get8ex(line, paramnum, 10, 0); | |
270 | } | |
271 | ||
f6d9fb17 | 272 | /** |
31abe49f | 273 | * @brief Reads a decimal integer (actually, 0-254, not 255) |
f6d9fb17 MHS |
274 | * @param line |
275 | * @param paramnum | |
31abe49f | 276 | * @return -1 if error |
f6d9fb17 MHS |
277 | */ |
278 | uint8_t param_getdec(const char *line, int paramnum, uint8_t *destination) | |
279 | { | |
31abe49f | 280 | uint8_t val = param_get8ex(line, paramnum, 255, 10); |
31abe49f | 281 | if( (int8_t) val == -1) return 1; |
f6d9fb17 MHS |
282 | (*destination) = val; |
283 | return 0; | |
284 | } | |
285 | /** | |
286 | * @brief Checks if param is decimal | |
287 | * @param line | |
288 | * @param paramnum | |
289 | * @return | |
290 | */ | |
291 | uint8_t param_isdec(const char *line, int paramnum) | |
292 | { | |
293 | int bg, en; | |
294 | //TODO, check more thorougly | |
295 | if (!param_getptr(line, &bg, &en, paramnum)) return 1; | |
296 | // return strtoul(&line[bg], NULL, 10) & 0xff; | |
297 | ||
298 | return 0; | |
299 | } | |
300 | ||
f397b5cc M |
301 | uint8_t param_get8ex(const char *line, int paramnum, int deflt, int base) |
302 | { | |
303 | int bg, en; | |
304 | ||
305 | if (!param_getptr(line, &bg, &en, paramnum)) | |
6c6d1ac1 | 306 | return strtoul(&line[bg], NULL, base) & 0xff; |
f397b5cc M |
307 | else |
308 | return deflt; | |
309 | } | |
310 | ||
311 | uint32_t param_get32ex(const char *line, int paramnum, int deflt, int base) | |
312 | { | |
313 | int bg, en; | |
314 | ||
315 | if (!param_getptr(line, &bg, &en, paramnum)) | |
6c6d1ac1 | 316 | return strtoul(&line[bg], NULL, base); |
f397b5cc M |
317 | else |
318 | return deflt; | |
319 | } | |
320 | ||
321 | uint64_t param_get64ex(const char *line, int paramnum, int deflt, int base) | |
322 | { | |
323 | int bg, en; | |
324 | ||
325 | if (!param_getptr(line, &bg, &en, paramnum)) | |
6c6d1ac1 | 326 | return strtoull(&line[bg], NULL, base); |
f397b5cc M |
327 | else |
328 | return deflt; | |
329 | ||
330 | return 0; | |
331 | } | |
332 | ||
333 | int param_gethex(const char *line, int paramnum, uint8_t * data, int hexcnt) | |
334 | { | |
335 | int bg, en, temp, i; | |
336 | ||
337 | if (hexcnt % 2) | |
338 | return 1; | |
339 | ||
340 | if (param_getptr(line, &bg, &en, paramnum)) return 1; | |
341 | ||
342 | if (en - bg + 1 != hexcnt) | |
343 | return 1; | |
344 | ||
345 | for(i = 0; i < hexcnt; i += 2) { | |
346 | if (!(isxdigit(line[bg + i]) && isxdigit(line[bg + i + 1])) ) return 1; | |
347 | ||
348 | sscanf((char[]){line[bg + i], line[bg + i + 1], 0}, "%X", &temp); | |
349 | data[i / 2] = temp & 0xff; | |
350 | } | |
351 | ||
352 | return 0; | |
353 | } | |
1a5a73ab | 354 | int param_gethex_ex(const char *line, int paramnum, uint8_t * data, int *hexcnt) |
355 | { | |
356 | int bg, en, temp, i; | |
357 | ||
358 | //if (hexcnt % 2) | |
359 | // return 1; | |
360 | ||
361 | if (param_getptr(line, &bg, &en, paramnum)) return 1; | |
362 | ||
363 | *hexcnt = en - bg + 1; | |
364 | if (*hexcnt % 2) //error if not complete hex bytes | |
365 | return 1; | |
aea4d766 | 366 | |
1a5a73ab | 367 | for(i = 0; i < *hexcnt; i += 2) { |
368 | if (!(isxdigit(line[bg + i]) && isxdigit(line[bg + i + 1])) ) return 1; | |
369 | ||
370 | sscanf((char[]){line[bg + i], line[bg + i + 1], 0}, "%X", &temp); | |
371 | data[i / 2] = temp & 0xff; | |
372 | } | |
373 | ||
374 | return 0; | |
375 | } | |
aea4d766 | 376 | int param_getstr(const char *line, int paramnum, char * str) |
377 | { | |
378 | int bg, en; | |
379 | ||
380 | if (param_getptr(line, &bg, &en, paramnum)) return 0; | |
381 | ||
382 | memcpy(str, line + bg, en - bg + 1); | |
383 | str[en - bg + 1] = 0; | |
384 | ||
385 | return en - bg + 1; | |
386 | } | |
79544b28 | 387 | |
388 | /* | |
389 | The following methods comes from Rfidler sourcecode. | |
390 | https://github.com/ApertureLabsLtd/RFIDler/blob/master/firmware/Pic32/RFIDler.X/src/ | |
391 | */ | |
392 | ||
393 | // convert hex to sequence of 0/1 bit values | |
394 | // returns number of bits converted | |
395 | int hextobinarray(char *target, char *source) | |
396 | { | |
397 | int length, i, count= 0; | |
398 | char x; | |
399 | ||
400 | length = strlen(source); | |
401 | // process 4 bits (1 hex digit) at a time | |
402 | while(length--) | |
403 | { | |
404 | x= *(source++); | |
405 | // capitalize | |
406 | if (x >= 'a' && x <= 'f') | |
407 | x -= 32; | |
408 | // convert to numeric value | |
409 | if (x >= '0' && x <= '9') | |
410 | x -= '0'; | |
411 | else if (x >= 'A' && x <= 'F') | |
412 | x -= 'A' - 10; | |
413 | else | |
414 | return 0; | |
415 | // output | |
416 | for(i= 0 ; i < 4 ; ++i, ++count) | |
417 | *(target++)= (x >> (3 - i)) & 1; | |
418 | } | |
419 | ||
420 | return count; | |
421 | } | |
422 | ||
423 | // convert hex to human readable binary string | |
424 | int hextobinstring(char *target, char *source) | |
425 | { | |
426 | int length; | |
427 | ||
428 | if(!(length= hextobinarray(target, source))) | |
429 | return 0; | |
430 | binarraytobinstring(target, target, length); | |
431 | return length; | |
432 | } | |
433 | ||
434 | // convert binary array of 0x00/0x01 values to hex (safe to do in place as target will always be shorter than source) | |
435 | // return number of bits converted | |
1c4c0b06 | 436 | int binarraytohex(char *target,char *source, int length) |
79544b28 | 437 | { |
438 | unsigned char i, x; | |
439 | int j = length; | |
440 | ||
441 | if(j % 4) | |
442 | return 0; | |
443 | ||
444 | while(j) | |
445 | { | |
446 | for(i= x= 0 ; i < 4 ; ++i) | |
447 | x += ( source[i] << (3 - i)); | |
448 | sprintf(target,"%X", x); | |
449 | ++target; | |
450 | source += 4; | |
451 | j -= 4; | |
452 | } | |
453 | return length; | |
454 | } | |
455 | ||
456 | // convert binary array to human readable binary | |
457 | void binarraytobinstring(char *target, char *source, int length) | |
458 | { | |
459 | int i; | |
460 | ||
461 | for(i= 0 ; i < length ; ++i) | |
462 | *(target++)= *(source++) + '0'; | |
463 | *target= '\0'; | |
464 | } | |
465 | ||
466 | // return parity bit required to match type | |
709665b5 | 467 | uint8_t GetParity( uint8_t *bits, uint8_t type, int length) |
79544b28 | 468 | { |
469 | int x; | |
470 | ||
471 | for(x= 0 ; length > 0 ; --length) | |
472 | x += bits[length - 1]; | |
473 | x %= 2; | |
474 | ||
475 | return x ^ type; | |
476 | } | |
477 | ||
478 | // add HID parity to binary array: EVEN prefix for 1st half of ID, ODD suffix for 2nd half | |
709665b5 | 479 | void wiegand_add_parity(uint8_t *target, uint8_t *source, uint8_t length) |
79544b28 | 480 | { |
481 | *(target++)= GetParity(source, EVEN, length / 2); | |
482 | memcpy(target, source, length); | |
483 | target += length; | |
484 | *(target)= GetParity(source + length / 2, ODD, length / 2); | |
485 | } | |
4973f23d | 486 | |
487 | void xor(unsigned char *dst, unsigned char *src, size_t len) { | |
488 | for( ; len > 0; len--,dst++,src++) | |
489 | *dst ^= *src; | |
490 | } | |
491 | ||
492 | int32_t le24toh (uint8_t data[3]) { | |
493 | return (data[2] << 16) | (data[1] << 8) | data[0]; | |
494 | } |