X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/6c6d1ac1a6eac24f1416523a882adc064e863e24..83f3f8ac40b47e220954e620a5ecbe41f54f4dc7:/client/util.c diff --git a/client/util.c b/client/util.c index 15e911a1..9f2142c6 100644 --- a/client/util.c +++ b/client/util.c @@ -13,6 +13,7 @@ #ifndef _WIN32 #include #include + int ukbhit(void) { int cnt = 0; @@ -45,12 +46,18 @@ int ukbhit(void) { #endif // log files functions -void AddLogLine(char *fileName, char *extData, char *c) { +void AddLogLine(char *file, char *extData, char *c) { FILE *fLog = NULL; - - fLog = fopen(fileName, "a"); + char filename[FILE_PATH_SIZE] = {0x00}; + int len = 0; + + len = strlen(file); + if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE; + memcpy(filename, file, len); + + fLog = fopen(filename, "a"); if (!fLog) { - printf("Could not append log file %s", fileName); + printf("Could not append log file %s", filename); return; } @@ -101,17 +108,39 @@ void print_hex(const uint8_t * data, const size_t len) printf("\n"); } -char * sprint_hex(const uint8_t * data, const size_t len) { +char *sprint_hex(const uint8_t *data, const size_t len) { + + int maxLen = ( len > 1024/3) ? 1024/3 : len; static char buf[1024]; - char * tmp = buf; + memset(buf, 0x00, 1024); + char *tmp = buf; size_t i; - for (i=0; i < len && i < 1024/3; i++, tmp += 3) + for (i=0; i < maxLen; ++i, tmp += 3) sprintf(tmp, "%02x ", data[i]); return buf; } +char *sprint_bin_break(const uint8_t *data, const size_t len, const uint8_t breaks) { + + int maxLen = ( len > 1020) ? 1020 : len; + static char buf[1024]; + memset(buf, 0x00, 1024); + char *tmp = buf; + + for (size_t i=0; i < maxLen; ++i){ + sprintf(tmp++, "%u", data[i]); + if (breaks > 0 && !((i+1) % breaks)) + sprintf(tmp++, "%s","\n"); + } + + return buf; +} + +char *sprint_bin(const uint8_t *data, const size_t len) { + return sprint_bin_break(data, len, 0); +} void num_to_bytes(uint64_t n, size_t len, uint8_t* dest) { while (len--) { @@ -131,6 +160,44 @@ uint64_t bytes_to_num(uint8_t* src, size_t len) return num; } +// aa,bb,cc,dd,ee,ff,gg,hh, ii,jj,kk,ll,mm,nn,oo,pp +// to +// hh,gg,ff,ee,dd,cc,bb,aa, pp,oo,nn,mm,ll,kk,jj,ii +// up to 64 bytes or 512 bits +uint8_t *SwapEndian64(const uint8_t *src, const size_t len, const uint8_t blockSize){ + static uint8_t buf[64]; + memset(buf, 0x00, 64); + uint8_t *tmp = buf; + for (uint8_t block=0; block < (uint8_t)(len/blockSize); block++){ + for (size_t i = 0; i < blockSize; i++){ + tmp[i+(blockSize*block)] = src[(blockSize-1-i)+(blockSize*block)]; + } + } + return tmp; +} + +//assumes little endian +char * printBits(size_t const size, void const * const ptr) +{ + unsigned char *b = (unsigned char*) ptr; + unsigned char byte; + static char buf[1024]; + char * tmp = buf; + int i, j; + + for (i=size-1;i>=0;i--) + { + for (j=7;j>=0;j--) + { + byte = b[i] & (1<>= j; + sprintf(tmp, "%u", byte); + tmp++; + } + } + return buf; +} + // ------------------------------------------------------------------------- // string parameters lib // ------------------------------------------------------------------------- @@ -169,6 +236,7 @@ int param_getptr(const char *line, int *bg, int *en, int paramnum) return 0; } + char param_getchar(const char *line, int paramnum) { int bg, en; @@ -183,6 +251,35 @@ uint8_t param_get8(const char *line, int paramnum) return param_get8ex(line, paramnum, 10, 0); } +/** + * @brief Reads a decimal integer (actually, 0-254, not 255) + * @param line + * @param paramnum + * @return -1 if error + */ +uint8_t param_getdec(const char *line, int paramnum, uint8_t *destination) +{ + uint8_t val = param_get8ex(line, paramnum, 255, 10); + if( (int8_t) val == -1) return 1; + (*destination) = val; + return 0; +} +/** + * @brief Checks if param is decimal + * @param line + * @param paramnum + * @return + */ +uint8_t param_isdec(const char *line, int paramnum) +{ + int bg, en; + //TODO, check more thorougly + if (!param_getptr(line, &bg, &en, paramnum)) return 1; + // return strtoul(&line[bg], NULL, 10) & 0xff; + + return 0; +} + uint8_t param_get8ex(const char *line, int paramnum, int deflt, int base) { int bg, en; @@ -248,3 +345,111 @@ int param_getstr(const char *line, int paramnum, char * str) return en - bg + 1; } + +/* +The following methods comes from Rfidler sourcecode. +https://github.com/ApertureLabsLtd/RFIDler/blob/master/firmware/Pic32/RFIDler.X/src/ +*/ + +// convert hex to sequence of 0/1 bit values +// returns number of bits converted +int hextobinarray(char *target, char *source) +{ + int length, i, count= 0; + char x; + + length = strlen(source); + // process 4 bits (1 hex digit) at a time + while(length--) + { + x= *(source++); + // capitalize + if (x >= 'a' && x <= 'f') + x -= 32; + // convert to numeric value + if (x >= '0' && x <= '9') + x -= '0'; + else if (x >= 'A' && x <= 'F') + x -= 'A' - 10; + else + return 0; + // output + for(i= 0 ; i < 4 ; ++i, ++count) + *(target++)= (x >> (3 - i)) & 1; + } + + return count; +} + +// convert hex to human readable binary string +int hextobinstring(char *target, char *source) +{ + int length; + + if(!(length= hextobinarray(target, source))) + return 0; + binarraytobinstring(target, target, length); + return length; +} + +// convert binary array of 0x00/0x01 values to hex (safe to do in place as target will always be shorter than source) +// return number of bits converted +int binarraytohex(char *target,char *source, int length) +{ + unsigned char i, x; + int j = length; + + if(j % 4) + return 0; + + while(j) + { + for(i= x= 0 ; i < 4 ; ++i) + x += ( source[i] << (3 - i)); + sprintf(target,"%X", x); + ++target; + source += 4; + j -= 4; + } + return length; +} + +// convert binary array to human readable binary +void binarraytobinstring(char *target, char *source, int length) +{ + int i; + + for(i= 0 ; i < length ; ++i) + *(target++)= *(source++) + '0'; + *target= '\0'; +} + +// return parity bit required to match type +uint8_t GetParity( char *bits, uint8_t type, int length) +{ + int x; + + for(x= 0 ; length > 0 ; --length) + x += bits[length - 1]; + x %= 2; + + return x ^ type; +} + +// add HID parity to binary array: EVEN prefix for 1st half of ID, ODD suffix for 2nd half +void wiegand_add_parity(char *target, char *source, char length) +{ + *(target++)= GetParity(source, EVEN, length / 2); + memcpy(target, source, length); + target += length; + *(target)= GetParity(source + length / 2, ODD, length / 2); +} + +void xor(unsigned char *dst, unsigned char *src, size_t len) { + for( ; len > 0; len--,dst++,src++) + *dst ^= *src; +} + +int32_t le24toh (uint8_t data[3]) { + return (data[2] << 16) | (data[1] << 8) | data[0]; +}