]>
Commit | Line | Data |
---|---|---|
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" | |
12 | ||
13 | #ifndef _WIN32 | |
14 | #include <termios.h> | |
15 | #include <sys/ioctl.h> | |
16 | ||
17 | int ukbhit(void) | |
18 | { | |
19 | int cnt = 0; | |
20 | int error; | |
21 | static struct termios Otty, Ntty; | |
22 | ||
23 | ||
24 | tcgetattr( 0, &Otty); | |
25 | Ntty = Otty; | |
26 | ||
27 | Ntty.c_iflag = 0; /* input mode */ | |
28 | Ntty.c_oflag = 0; /* output mode */ | |
29 | Ntty.c_lflag &= ~ICANON; /* raw mode */ | |
30 | Ntty.c_cc[VMIN] = CMIN; /* minimum time to wait */ | |
31 | Ntty.c_cc[VTIME] = CTIME; /* minimum characters to wait for */ | |
32 | ||
33 | if (0 == (error = tcsetattr(0, TCSANOW, &Ntty))) { | |
34 | error += ioctl(0, FIONREAD, &cnt); | |
35 | error += tcsetattr(0, TCSANOW, &Otty); | |
36 | } | |
37 | ||
38 | return ( error == 0 ? cnt : -1 ); | |
39 | } | |
40 | ||
41 | #else | |
42 | #include <conio.h> | |
43 | int ukbhit(void) { | |
44 | return kbhit(); | |
45 | } | |
46 | #endif | |
47 | ||
48 | // log files functions | |
49 | void AddLogLine(char *file, char *extData, char *c) { | |
50 | FILE *fLog = NULL; | |
51 | char filename[FILE_PATH_SIZE] = {0x00}; | |
52 | int len = 0; | |
53 | ||
54 | len = strlen(file); | |
55 | if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE; | |
56 | memcpy(filename, file, len); | |
57 | ||
58 | fLog = fopen(filename, "a"); | |
59 | if (!fLog) { | |
60 | printf("Could not append log file %s", filename); | |
61 | return; | |
62 | } | |
63 | ||
64 | fprintf(fLog, "%s", extData); | |
65 | fprintf(fLog, "%s\n", c); | |
66 | fclose(fLog); | |
67 | } | |
68 | ||
69 | void AddLogHex(char *fileName, char *extData, const uint8_t * data, const size_t len){ | |
70 | AddLogLine(fileName, extData, sprint_hex(data, len)); | |
71 | } | |
72 | ||
73 | void AddLogUint64(char *fileName, char *extData, const uint64_t data) { | |
74 | char buf[100] = {0}; | |
75 | sprintf(buf, "%x%x", (unsigned int)((data & 0xFFFFFFFF00000000) >> 32), (unsigned int)(data & 0xFFFFFFFF)); | |
76 | AddLogLine(fileName, extData, buf); | |
77 | } | |
78 | ||
79 | void AddLogCurrentDT(char *fileName) { | |
80 | char buff[20]; | |
81 | struct tm *curTime; | |
82 | ||
83 | time_t now = time(0); | |
84 | curTime = gmtime(&now); | |
85 | ||
86 | strftime (buff, sizeof(buff), "%Y-%m-%d %H:%M:%S", curTime); | |
87 | AddLogLine(fileName, "\nanticollision: ", buff); | |
88 | } | |
89 | ||
90 | void FillFileNameByUID(char *fileName, uint8_t * uid, char *ext, int byteCount) { | |
91 | char * fnameptr = fileName; | |
92 | memset(fileName, 0x00, 200); | |
93 | ||
94 | for (int j = 0; j < byteCount; j++, fnameptr += 2) | |
95 | sprintf(fnameptr, "%02x", uid[j]); | |
96 | sprintf(fnameptr, "%s", ext); | |
97 | } | |
98 | ||
99 | // printing and converting functions | |
100 | ||
101 | void print_hex(const uint8_t * data, const size_t len) | |
102 | { | |
103 | size_t i; | |
104 | ||
105 | for (i=0; i < len; i++) | |
106 | printf("%02x ", data[i]); | |
107 | ||
108 | printf("\n"); | |
109 | } | |
110 | ||
111 | char *sprint_hex(const uint8_t *data, const size_t len) { | |
112 | ||
113 | int maxLen = ( len > 1024/3) ? 1024/3 : len; | |
114 | static char buf[1024]; | |
115 | memset(buf, 0x00, 1024); | |
116 | char *tmp = buf; | |
117 | size_t i; | |
118 | ||
119 | for (i=0; i < maxLen; ++i, tmp += 3) | |
120 | sprintf(tmp, "%02x ", data[i]); | |
121 | ||
122 | return buf; | |
123 | } | |
124 | ||
125 | char *sprint_bin_break(const uint8_t *data, const size_t len, const uint8_t breaks) { | |
126 | ||
127 | int maxLen = ( len > 1020) ? 1020 : len; | |
128 | static char buf[1024]; | |
129 | memset(buf, 0x00, 1024); | |
130 | char *tmp = buf; | |
131 | ||
132 | for (size_t i=0; i < maxLen; ++i){ | |
133 | sprintf(tmp++, "%u", data[i]); | |
134 | if (breaks > 0 && !((i+1) % breaks)) | |
135 | sprintf(tmp++, "%s","\n"); | |
136 | } | |
137 | ||
138 | return buf; | |
139 | } | |
140 | ||
141 | char *sprint_bin(const uint8_t *data, const size_t len) { | |
142 | return sprint_bin_break(data, len, 0); | |
143 | } | |
144 | void num_to_bytes(uint64_t n, size_t len, uint8_t* dest) | |
145 | { | |
146 | while (len--) { | |
147 | dest[len] = (uint8_t) n; | |
148 | n >>= 8; | |
149 | } | |
150 | } | |
151 | ||
152 | uint64_t bytes_to_num(uint8_t* src, size_t len) | |
153 | { | |
154 | uint64_t num = 0; | |
155 | while (len--) | |
156 | { | |
157 | num = (num << 8) | (*src); | |
158 | src++; | |
159 | } | |
160 | return num; | |
161 | } | |
162 | ||
163 | void num_to_bytebits(uint64_t n, size_t len, uint8_t *dest) { | |
164 | while (len--) { | |
165 | dest[len] = n & 1; | |
166 | n >>= 1; | |
167 | } | |
168 | } | |
169 | ||
170 | // aa,bb,cc,dd,ee,ff,gg,hh, ii,jj,kk,ll,mm,nn,oo,pp | |
171 | // to | |
172 | // hh,gg,ff,ee,dd,cc,bb,aa, pp,oo,nn,mm,ll,kk,jj,ii | |
173 | // up to 64 bytes or 512 bits | |
174 | uint8_t *SwapEndian64(const uint8_t *src, const size_t len, const uint8_t blockSize){ | |
175 | static uint8_t buf[64]; | |
176 | memset(buf, 0x00, 64); | |
177 | uint8_t *tmp = buf; | |
178 | for (uint8_t block=0; block < (uint8_t)(len/blockSize); block++){ | |
179 | for (size_t i = 0; i < blockSize; i++){ | |
180 | tmp[i+(blockSize*block)] = src[(blockSize-1-i)+(blockSize*block)]; | |
181 | } | |
182 | } | |
183 | return tmp; | |
184 | } | |
185 | ||
186 | //assumes little endian | |
187 | char * printBits(size_t const size, void const * const ptr) | |
188 | { | |
189 | unsigned char *b = (unsigned char*) ptr; | |
190 | unsigned char byte; | |
191 | static char buf[1024]; | |
192 | char * tmp = buf; | |
193 | int i, j; | |
194 | ||
195 | for (i=size-1;i>=0;i--) | |
196 | { | |
197 | for (j=7;j>=0;j--) | |
198 | { | |
199 | byte = b[i] & (1<<j); | |
200 | byte >>= j; | |
201 | sprintf(tmp, "%u", byte); | |
202 | tmp++; | |
203 | } | |
204 | } | |
205 | return buf; | |
206 | } | |
207 | ||
208 | // ------------------------------------------------------------------------- | |
209 | // string parameters lib | |
210 | // ------------------------------------------------------------------------- | |
211 | ||
212 | // ------------------------------------------------------------------------- | |
213 | // line - param line | |
214 | // bg, en - symbol numbers in param line of beginning an ending parameter | |
215 | // paramnum - param number (from 0) | |
216 | // ------------------------------------------------------------------------- | |
217 | int param_getptr(const char *line, int *bg, int *en, int paramnum) | |
218 | { | |
219 | int i; | |
220 | int len = strlen(line); | |
221 | ||
222 | *bg = 0; | |
223 | *en = 0; | |
224 | ||
225 | // skip spaces | |
226 | while (line[*bg] ==' ' || line[*bg]=='\t') (*bg)++; | |
227 | if (*bg >= len) { | |
228 | return 1; | |
229 | } | |
230 | ||
231 | for (i = 0; i < paramnum; i++) { | |
232 | while (line[*bg]!=' ' && line[*bg]!='\t' && line[*bg] != '\0') (*bg)++; | |
233 | while (line[*bg]==' ' || line[*bg]=='\t') (*bg)++; | |
234 | ||
235 | if (line[*bg] == '\0') return 1; | |
236 | } | |
237 | ||
238 | *en = *bg; | |
239 | while (line[*en] != ' ' && line[*en] != '\t' && line[*en] != '\0') (*en)++; | |
240 | ||
241 | (*en)--; | |
242 | ||
243 | return 0; | |
244 | } | |
245 | ||
246 | ||
247 | char param_getchar(const char *line, int paramnum) | |
248 | { | |
249 | int bg, en; | |
250 | ||
251 | if (param_getptr(line, &bg, &en, paramnum)) return 0x00; | |
252 | ||
253 | return line[bg]; | |
254 | } | |
255 | ||
256 | uint8_t param_get8(const char *line, int paramnum) | |
257 | { | |
258 | return param_get8ex(line, paramnum, 10, 0); | |
259 | } | |
260 | ||
261 | /** | |
262 | * @brief Reads a decimal integer (actually, 0-254, not 255) | |
263 | * @param line | |
264 | * @param paramnum | |
265 | * @return -1 if error | |
266 | */ | |
267 | uint8_t param_getdec(const char *line, int paramnum, uint8_t *destination) | |
268 | { | |
269 | uint8_t val = param_get8ex(line, paramnum, 255, 10); | |
270 | if( (int8_t) val == -1) return 1; | |
271 | (*destination) = val; | |
272 | return 0; | |
273 | } | |
274 | /** | |
275 | * @brief Checks if param is decimal | |
276 | * @param line | |
277 | * @param paramnum | |
278 | * @return | |
279 | */ | |
280 | uint8_t param_isdec(const char *line, int paramnum) | |
281 | { | |
282 | int bg, en; | |
283 | //TODO, check more thorougly | |
284 | if (!param_getptr(line, &bg, &en, paramnum)) return 1; | |
285 | // return strtoul(&line[bg], NULL, 10) & 0xff; | |
286 | ||
287 | return 0; | |
288 | } | |
289 | ||
290 | uint8_t param_get8ex(const char *line, int paramnum, int deflt, int base) | |
291 | { | |
292 | int bg, en; | |
293 | ||
294 | if (!param_getptr(line, &bg, &en, paramnum)) | |
295 | return strtoul(&line[bg], NULL, base) & 0xff; | |
296 | else | |
297 | return deflt; | |
298 | } | |
299 | ||
300 | uint32_t param_get32ex(const char *line, int paramnum, int deflt, int base) | |
301 | { | |
302 | int bg, en; | |
303 | ||
304 | if (!param_getptr(line, &bg, &en, paramnum)) | |
305 | return strtoul(&line[bg], NULL, base); | |
306 | else | |
307 | return deflt; | |
308 | } | |
309 | ||
310 | uint64_t param_get64ex(const char *line, int paramnum, int deflt, int base) | |
311 | { | |
312 | int bg, en; | |
313 | ||
314 | if (!param_getptr(line, &bg, &en, paramnum)) | |
315 | return strtoull(&line[bg], NULL, base); | |
316 | else | |
317 | return deflt; | |
318 | ||
319 | return 0; | |
320 | } | |
321 | ||
322 | int param_gethex(const char *line, int paramnum, uint8_t * data, int hexcnt) | |
323 | { | |
324 | int bg, en, temp, i; | |
325 | ||
326 | if (hexcnt % 2) | |
327 | return 1; | |
328 | ||
329 | if (param_getptr(line, &bg, &en, paramnum)) return 1; | |
330 | ||
331 | if (en - bg + 1 != hexcnt) | |
332 | return 1; | |
333 | ||
334 | for(i = 0; i < hexcnt; i += 2) { | |
335 | if (!(isxdigit(line[bg + i]) && isxdigit(line[bg + i + 1])) ) return 1; | |
336 | ||
337 | sscanf((char[]){line[bg + i], line[bg + i + 1], 0}, "%X", &temp); | |
338 | data[i / 2] = temp & 0xff; | |
339 | } | |
340 | ||
341 | return 0; | |
342 | } | |
343 | int param_gethex_ex(const char *line, int paramnum, uint8_t * data, int *hexcnt) | |
344 | { | |
345 | int bg, en, temp, i; | |
346 | ||
347 | //if (hexcnt % 2) | |
348 | // return 1; | |
349 | ||
350 | if (param_getptr(line, &bg, &en, paramnum)) return 1; | |
351 | ||
352 | *hexcnt = en - bg + 1; | |
353 | if (*hexcnt % 2) //error if not complete hex bytes | |
354 | return 1; | |
355 | ||
356 | for(i = 0; i < *hexcnt; i += 2) { | |
357 | if (!(isxdigit(line[bg + i]) && isxdigit(line[bg + i + 1])) ) return 1; | |
358 | ||
359 | sscanf((char[]){line[bg + i], line[bg + i + 1], 0}, "%X", &temp); | |
360 | data[i / 2] = temp & 0xff; | |
361 | } | |
362 | ||
363 | return 0; | |
364 | } | |
365 | int param_getstr(const char *line, int paramnum, char * str) | |
366 | { | |
367 | int bg, en; | |
368 | ||
369 | if (param_getptr(line, &bg, &en, paramnum)) return 0; | |
370 | ||
371 | memcpy(str, line + bg, en - bg + 1); | |
372 | str[en - bg + 1] = 0; | |
373 | ||
374 | return en - bg + 1; | |
375 | } | |
376 | ||
377 | /* | |
378 | The following methods comes from Rfidler sourcecode. | |
379 | https://github.com/ApertureLabsLtd/RFIDler/blob/master/firmware/Pic32/RFIDler.X/src/ | |
380 | */ | |
381 | ||
382 | // convert hex to sequence of 0/1 bit values | |
383 | // returns number of bits converted | |
384 | int hextobinarray(char *target, char *source) | |
385 | { | |
386 | int length, i, count= 0; | |
387 | char x; | |
388 | ||
389 | length = strlen(source); | |
390 | // process 4 bits (1 hex digit) at a time | |
391 | while(length--) | |
392 | { | |
393 | x= *(source++); | |
394 | // capitalize | |
395 | if (x >= 'a' && x <= 'f') | |
396 | x -= 32; | |
397 | // convert to numeric value | |
398 | if (x >= '0' && x <= '9') | |
399 | x -= '0'; | |
400 | else if (x >= 'A' && x <= 'F') | |
401 | x -= 'A' - 10; | |
402 | else | |
403 | return 0; | |
404 | // output | |
405 | for(i= 0 ; i < 4 ; ++i, ++count) | |
406 | *(target++)= (x >> (3 - i)) & 1; | |
407 | } | |
408 | ||
409 | return count; | |
410 | } | |
411 | ||
412 | // convert hex to human readable binary string | |
413 | int hextobinstring(char *target, char *source) | |
414 | { | |
415 | int length; | |
416 | ||
417 | if(!(length= hextobinarray(target, source))) | |
418 | return 0; | |
419 | binarraytobinstring(target, target, length); | |
420 | return length; | |
421 | } | |
422 | ||
423 | // convert binary array of 0x00/0x01 values to hex (safe to do in place as target will always be shorter than source) | |
424 | // return number of bits converted | |
425 | int binarraytohex(char *target,char *source, int length) | |
426 | { | |
427 | unsigned char i, x; | |
428 | int j = length; | |
429 | ||
430 | if(j % 4) | |
431 | return 0; | |
432 | ||
433 | while(j) | |
434 | { | |
435 | for(i= x= 0 ; i < 4 ; ++i) | |
436 | x += ( source[i] << (3 - i)); | |
437 | sprintf(target,"%X", x); | |
438 | ++target; | |
439 | source += 4; | |
440 | j -= 4; | |
441 | } | |
442 | return length; | |
443 | } | |
444 | ||
445 | // convert binary array to human readable binary | |
446 | void binarraytobinstring(char *target, char *source, int length) | |
447 | { | |
448 | int i; | |
449 | ||
450 | for(i= 0 ; i < length ; ++i) | |
451 | *(target++)= *(source++) + '0'; | |
452 | *target= '\0'; | |
453 | } | |
454 | ||
455 | // return parity bit required to match type | |
456 | uint8_t GetParity( uint8_t *bits, uint8_t type, int length) | |
457 | { | |
458 | int x; | |
459 | ||
460 | for(x= 0 ; length > 0 ; --length) | |
461 | x += bits[length - 1]; | |
462 | x %= 2; | |
463 | ||
464 | return x ^ type; | |
465 | } | |
466 | ||
467 | // add HID parity to binary array: EVEN prefix for 1st half of ID, ODD suffix for 2nd half | |
468 | void wiegand_add_parity(uint8_t *target, uint8_t *source, uint8_t length) | |
469 | { | |
470 | *(target++)= GetParity(source, EVEN, length / 2); | |
471 | memcpy(target, source, length); | |
472 | target += length; | |
473 | *(target)= GetParity(source + length / 2, ODD, length / 2); | |
474 | } | |
475 | ||
476 | void xor(unsigned char *dst, unsigned char *src, size_t len) { | |
477 | for( ; len > 0; len--,dst++,src++) | |
478 | *dst ^= *src; | |
479 | } | |
480 | ||
481 | int32_t le24toh (uint8_t data[3]) { | |
482 | return (data[2] << 16) | (data[1] << 8) | data[0]; | |
483 | } |