X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/e464f6225860a0965e266732328d9d0948607c31..28597bb6c742c6d717d33aebdbb5b0ba98bc95eb:/client/util.c diff --git a/client/util.c b/client/util.c index 9dab4655..cd18fc00 100644 --- a/client/util.c +++ b/client/util.c @@ -16,7 +16,7 @@ #include #include #include -#include "data.h" +#include #ifdef _WIN32 #include @@ -52,7 +52,22 @@ int ukbhit(void) return ( error == 0 ? cnt : -1 ); } -#else +char getch(void) +{ + char c; + int error; + struct termios Otty, Ntty; + if ( tcgetattr(STDIN_FILENO, &Otty) == -1 ) return -1; + Ntty = Otty; + Ntty.c_lflag &= ~ICANON; /* disable buffered i/o */ + if (0 == (error = tcsetattr(STDIN_FILENO, TCSANOW, &Ntty))) { // set new attributes + c = getchar(); + error += tcsetattr(STDIN_FILENO, TCSANOW, &Otty); // reset attributes + } + return ( error == 0 ? c : -1 ); +} + +#else // _WIN32 #include int ukbhit(void) { @@ -102,58 +117,102 @@ void AddLogCurrentDT(char *fileName) { AddLogLine(fileName, "\nanticollision: ", buff); } -void FillFileNameByUID(char *fileName, uint8_t * uid, char *ext, int byteCount) { +void FillFileNameByUID(char *fileName, uint8_t *uid, char *ext, int byteCount) { char * fnameptr = fileName; - memset(fileName, 0x00, 200); for (int j = 0; j < byteCount; j++, fnameptr += 2) sprintf(fnameptr, "%02x", (unsigned int) uid[j]); sprintf(fnameptr, "%s", ext); } -// printing and converting functions +// fill buffer from structure [{uint8_t data, size_t length},...] +int FillBuffer(uint8_t *data, size_t maxDataLength, size_t *dataLength, ...) { + *dataLength = 0; + va_list valist; + va_start(valist, dataLength); + + uint8_t *vdata = NULL; + size_t vlength = 0; + do{ + vdata = va_arg(valist, uint8_t *); + if (!vdata) + break; + + vlength = va_arg(valist, size_t); + if (*dataLength + vlength > maxDataLength) { + va_end(valist); + return 1; + } + + memcpy(&data[*dataLength], vdata, vlength); + *dataLength += vlength; + + } while (vdata); + + va_end(valist); -void print_hex(const uint8_t * data, const size_t len) -{ - size_t i; + return 0; +} - for (i=0; i < len; i++) - printf("%02x ", data[i]); +bool CheckStringIsHEXValue(const char *value) { + for (int i = 0; i < strlen(value); i++) + if (!isxdigit(value[i])) + return false; - printf("\n"); + if (strlen(value) % 2) + return false; + + return true; } -void print_hex_break(const uint8_t *data, const size_t len, uint8_t breaks) { +void hex_to_buffer(const uint8_t *buf, const uint8_t *hex_data, const size_t hex_len, const size_t hex_max_len, + const size_t min_str_len, const size_t spaces_between, bool uppercase) { + + char *tmp = (char *)buf; + size_t i; + memset(tmp, 0x00, hex_max_len); - int rownum = 0; - printf("[%02d] | ", rownum); - for (int i = 0; i < len; ++i) { + int maxLen = ( hex_len > hex_max_len) ? hex_max_len : hex_len; - printf("%02X ", data[i]); + for (i = 0; i < maxLen; ++i, tmp += 2 + spaces_between) { + sprintf(tmp, (uppercase) ? "%02X" : "%02x", (unsigned int) hex_data[i]); - // check if a line break is needed - if ( breaks > 0 && !((i+1) % breaks) && (i+1 < len) ) { - ++rownum; - printf("\n[%02d] | ", rownum); - } + for (int j = 0; j < spaces_between; j++) + sprintf(tmp + 2 + j, " "); } - printf("\n"); + + i *= (2 + spaces_between); + int minStrLen = min_str_len > i ? min_str_len : 0; + if (minStrLen > hex_max_len) + minStrLen = hex_max_len; + for(; i < minStrLen; i++, tmp += 1) + sprintf(tmp, " "); + + return; } +// printing and converting functions + char *sprint_hex(const uint8_t *data, const size_t len) { + static char buf[4097] = {0}; - int maxLen = ( len > 1024/3) ? 1024/3 : len; - static char buf[1024]; - memset(buf, 0x00, 1024); - char *tmp = buf; - size_t i; + hex_to_buffer((uint8_t *)buf, data, len, sizeof(buf) - 1, 0, 1, false); + + return buf; +} + +char *sprint_hex_inrow_ex(const uint8_t *data, const size_t len, const size_t min_str_len) { + static char buf[4097] = {0}; - for (i=0; i < maxLen; ++i, tmp += 3) - sprintf(tmp, "%02x ", (unsigned int) data[i]); + hex_to_buffer((uint8_t *)buf, data, len, sizeof(buf) - 1, min_str_len, 0, false); return buf; } +char *sprint_hex_inrow(const uint8_t *data, const size_t len) { + return sprint_hex_inrow_ex(data, len, 0); +} + char *sprint_bin_break(const uint8_t *data, const size_t len, const uint8_t breaks) { // make sure we don't go beyond our char array memory int max_len; @@ -189,28 +248,7 @@ char *sprint_bin(const uint8_t *data, const size_t len) { return sprint_bin_break(data, len, 0); } -char *sprint_hex_ascii(const uint8_t *data, const size_t len) { - static char buf[1024]; - char *tmp = buf; - memset(buf, 0x00, 1024); - size_t max_len = (len > 255) ? 255 : len; - // max 255 bytes * 3 + 2 characters = 767 in buffer - sprintf(tmp, "%s| ", sprint_hex(data, max_len) ); - - size_t i = 0; - size_t pos = (max_len * 3)+2; - // add another 255 characters ascii = 1020 characters of buffer used - while(i < max_len) { - char c = data[i]; - if ( (c < 32) || (c == 127)) - c = '.'; - sprintf(tmp+pos+i, "%c", c); - ++i; - } - return buf; -} - -char *sprint_ascii(const uint8_t *data, const size_t len) { +char *sprint_ascii_ex(const uint8_t *data, const size_t len, const size_t min_str_len) { static char buf[1024]; char *tmp = buf; memset(buf, 0x00, 1024); @@ -221,9 +259,18 @@ char *sprint_ascii(const uint8_t *data, const size_t len) { tmp[i] = ((c < 32) || (c == 127)) ? '.' : c; ++i; } + + int minStrLen = min_str_len > i ? min_str_len : 0; + for(; i < minStrLen; ++i) + tmp[i] = ' '; + return buf; } +char *sprint_ascii(const uint8_t *data, const size_t len) { + return sprint_ascii_ex(data, len, 0); +} + void num_to_bytes(uint64_t n, size_t len, uint8_t* dest) { while (len--) { @@ -275,32 +322,21 @@ uint32_t SwapBits(uint32_t value, int nrbits) { 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; -} - -// takes a uint8_t src array, for len items and reverses the byte order in blocksizes (8,16,32,64), -// returns: the dest array contains the reordered src array. -void SwapEndian64ex(const uint8_t *src, const size_t len, const uint8_t blockSize, uint8_t *dest){ for (uint8_t block=0; block < (uint8_t)(len/blockSize); block++){ for (size_t i = 0; i < blockSize; i++){ - dest[i+(blockSize*block)] = src[(blockSize-1-i)+(blockSize*block)]; + buf[i+(blockSize*block)] = src[(blockSize-1-i)+(blockSize*block)]; } } + return buf; } //assumes little endian -char * printBits(size_t const size, void const * const ptr) +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; + char *tmp = buf; int i, j; for (i=size-1;i>=0;i--) @@ -316,6 +352,23 @@ char * printBits(size_t const size, void const * const ptr) return buf; } +char *printBitsPar(const uint8_t *b, size_t len) { + static char buf1[512] = {0}; + static char buf2[512] = {0}; + static char *buf; + if (buf != buf1) + buf = buf1; + else + buf = buf2; + memset(buf, 0x00, 512); + + for (int i = 0; i < len; i++) { + buf[i] = ((b[i / 8] << (i % 8)) & 0x80) ? '1':'0'; + } + return buf; +} + + // ------------------------------------------------------------------------- // string parameters lib // ------------------------------------------------------------------------- @@ -456,7 +509,7 @@ int param_gethex(const char *line, int paramnum, uint8_t * data, int hexcnt) return 1; for(i = 0; i < hexcnt; i += 2) { - if (!(isxdigit(line[bg + i]) && isxdigit(line[bg + i + 1])) ) return 1; + if (!(isxdigit((unsigned char)line[bg + i]) && isxdigit((unsigned char)line[bg + i + 1])) ) return 1; sscanf((char[]){line[bg + i], line[bg + i + 1], 0}, "%X", &temp); data[i / 2] = temp & 0xff; @@ -464,7 +517,8 @@ int param_gethex(const char *line, int paramnum, uint8_t * data, int hexcnt) return 0; } -int param_gethex_ex(const char *line, int paramnum, uint8_t * data, int *hexcnt) + +int param_gethex_ex(const char *line, int paramnum, uint8_t *data, int *hexcnt) { int bg, en, temp, i; @@ -473,12 +527,14 @@ int param_gethex_ex(const char *line, int paramnum, uint8_t * data, int *hexcnt) if (param_getptr(line, &bg, &en, paramnum)) return 1; + if (en - bg + 1 > *hexcnt) return 1; + *hexcnt = en - bg + 1; if (*hexcnt % 2) //error if not complete hex bytes return 1; for(i = 0; i < *hexcnt; i += 2) { - if (!(isxdigit(line[bg + i]) && isxdigit(line[bg + i + 1])) ) return 1; + if (!(isxdigit((unsigned char)line[bg + i]) && isxdigit((unsigned char)line[bg + i + 1])) ) return 1; sscanf((char[]){line[bg + i], line[bg + i + 1], 0}, "%X", &temp); data[i / 2] = temp & 0xff; @@ -498,10 +554,12 @@ int param_gethex_to_eol(const char *line, int paramnum, uint8_t * data, int maxd int indx = bg; while (line[indx]) { - if (line[indx] == '\t' || line[indx] == ' ') + if (line[indx] == '\t' || line[indx] == ' ') { + indx++; continue; + } - if (isxdigit(line[indx])) { + if (isxdigit((unsigned char)line[indx])) { buf[strlen(buf) + 1] = 0x00; buf[strlen(buf)] = line[indx]; } else { @@ -531,11 +589,19 @@ int param_gethex_to_eol(const char *line, int paramnum, uint8_t * data, int maxd return 0; } -int param_getstr(const char *line, int paramnum, char * str) +int param_getstr(const char *line, int paramnum, char * str, size_t buffersize) { int bg, en; - if (param_getptr(line, &bg, &en, paramnum)) return 0; + if (param_getptr(line, &bg, &en, paramnum)) { + return 0; + } + + // Prevent out of bounds errors + if (en - bg + 1 >= buffersize) { + printf("out of bounds error: want %d bytes have %zd bytes\n", en - bg + 1 + 1, buffersize); + return 0; + } memcpy(str, line + bg, en - bg + 1); str[en - bg + 1] = 0; @@ -553,6 +619,7 @@ https://github.com/ApertureLabsLtd/RFIDler/blob/master/firmware/Pic32/RFIDler.X/ int hextobinarray(char *target, char *source) { int length, i, count= 0; + char* start = source; char x; length = strlen(source); @@ -568,8 +635,10 @@ int hextobinarray(char *target, char *source) x -= '0'; else if (x >= 'A' && x <= 'F') x -= 'A' - 10; - else + else { + printf("Discovered unknown character %c %d at idx %tu of %s\n", x, x, source - start, start); return 0; + } // output for(i= 0 ; i < 4 ; ++i, ++count) *(target++)= (x >> (3 - i)) & 1; @@ -578,17 +647,6 @@ int hextobinarray(char *target, char *source) 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) @@ -611,16 +669,6 @@ int binarraytohex(char *target,char *source, int length) 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( uint8_t *bits, uint8_t type, int length) { @@ -648,13 +696,6 @@ void xor(unsigned char *dst, unsigned char *src, size_t len) { *dst ^= *src; } -int32_t le24toh (uint8_t data[3]) { - return (data[2] << 16) | (data[1] << 8) | data[0]; -} -uint32_t le32toh (uint8_t *data) { - return (uint32_t)( (data[3]<<24) | (data[2]<<16) | (data[1]<<8) | data[0]); -} - // RotateLeft - Ultralight, Desfire, works on byte level // 00-01-02 >> 01-02-00 void rol(uint8_t *data, const size_t len){