X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/a9104f7e31d6c134f9772fef6df2156ed06c9e78..79d9ddc584b30654492d34081059f7e07696a14d:/client/util.c diff --git a/client/util.c b/client/util.c index f13d730c..4e93b8f5 100644 --- a/client/util.c +++ b/client/util.c @@ -26,7 +26,7 @@ #ifndef _WIN32 #include -#include +#include #include int ukbhit(void) @@ -42,14 +42,14 @@ int ukbhit(void) Ntty.c_oflag = 0x0000; // output mode Ntty.c_lflag &= ~ICANON; // control mode = raw Ntty.c_cc[VMIN] = 1; // return if at least 1 character is in the queue - Ntty.c_cc[VTIME] = 0; // no timeout. Wait forever - + Ntty.c_cc[VTIME] = 0; // no timeout. Wait forever + if (0 == (error = tcsetattr(STDIN_FILENO, TCSANOW, &Ntty))) { // set new attributes - error += ioctl(STDIN_FILENO, FIONREAD, &cnt); // get number of characters availabe - error += tcsetattr(STDIN_FILENO, TCSANOW, &Otty); // reset attributes + error += ioctl(STDIN_FILENO, FIONREAD, &cnt); // get number of characters availabe + error += tcsetattr(STDIN_FILENO, TCSANOW, &Otty); // reset attributes } - return ( error == 0 ? cnt : -1 ); + return cnt; } char getch(void) @@ -78,13 +78,13 @@ int ukbhit(void) { // log files functions void AddLogLine(char *file, char *extData, char *c) { FILE *fLog = NULL; - char filename[FILE_PATH_SIZE] = {0x00}; - int len = 0; + 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); - 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); @@ -117,13 +117,12 @@ 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); + sprintf(fnameptr, "%02x", (unsigned int) uid[j]); + sprintf(fnameptr, "%s", ext); } // fill buffer from structure [{uint8_t data, size_t length},...] @@ -131,25 +130,25 @@ 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); return 0; @@ -162,31 +161,30 @@ bool CheckStringIsHEXValue(const char *value) { if (strlen(value) % 2) return false; - + return true; } -void hex_to_buffer(const uint8_t *buf, const uint8_t *hex_data, const size_t hex_len, const size_t hex_max_len, +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 maxLen = ( hex_len > hex_max_len) ? hex_max_len : hex_len; + int maxLen = (hex_len > hex_max_len) ? hex_max_len : hex_len; - for (i = 0; i < maxLen; ++i, tmp += 2 + spaces_between) { - sprintf(tmp, (uppercase) ? "%02X" : "%02x", (unsigned int) hex_data[i]); - - for (int j = 0; j < spaces_between; j++) - sprintf(tmp + 2 + j, " "); + for (int i = 0; i < maxLen; ++i, tmp += 2 + spaces_between) { + sprintf(tmp, (uppercase) ? "%02X" : "%02x", (unsigned int) hex_data[i]); + + if (i != maxLen - 1) + for (int j = 0; j < spaces_between; j++) + sprintf(tmp + 2 + j, " "); } - - i *= (2 + spaces_between); - int minStrLen = min_str_len > i ? min_str_len : 0; + + size_t len = strlen(tmp); + int minStrLen = min_str_len > len ? min_str_len : 0; if (minStrLen > hex_max_len) minStrLen = hex_max_len; - for(; i < minStrLen; i++, tmp += 1) + for (int i = len; i < minStrLen; i++, tmp += 1) sprintf(tmp, " "); return; @@ -196,7 +194,7 @@ void hex_to_buffer(const uint8_t *buf, const uint8_t *hex_data, const size_t hex char *sprint_hex(const uint8_t *data, const size_t len) { static char buf[4097] = {0}; - + hex_to_buffer((uint8_t *)buf, data, len, sizeof(buf) - 1, 0, 1, false); return buf; @@ -260,14 +258,18 @@ char *sprint_ascii_ex(const uint8_t *data, const size_t len, const size_t min_st tmp[i] = ((c < 32) || (c == 127)) ? '.' : c; ++i; } - + int minStrLen = min_str_len > i ? min_str_len : 0; - for(; i < minStrLen; ++i) + 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--) { @@ -287,7 +289,7 @@ uint64_t bytes_to_num(uint8_t* src, size_t len) return num; } -void num_to_bytebits(uint64_t n, size_t len, uint8_t *dest) { +void num_to_bytebits(uint64_t n, size_t len, uint8_t *dest) { while (len--) { dest[len] = n & 1; n >>= 1; @@ -319,38 +321,37 @@ 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)]; + buf[i+(blockSize*block)] = src[(blockSize-1-i)+(blockSize*block)]; } } - return tmp; + 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; + 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", (unsigned int)byte); + 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", (unsigned int)byte); tmp++; - } - } + } + } return buf; } -char * printBitsPar(const uint8_t *b, size_t len) { +char *printBitsPar(const uint8_t *b, size_t len) { static char buf1[512] = {0}; static char buf2[512] = {0}; static char *buf; @@ -380,10 +381,10 @@ int param_getptr(const char *line, int *bg, int *en, int paramnum) { int i; int len = strlen(line); - + *bg = 0; *en = 0; - + // skip spaces while (line[*bg] ==' ' || line[*bg]=='\t') (*bg)++; if (*bg >= len) { @@ -393,13 +394,13 @@ int param_getptr(const char *line, int *bg, int *en, int paramnum) for (i = 0; i < paramnum; i++) { while (line[*bg]!=' ' && line[*bg]!='\t' && line[*bg] != '\0') (*bg)++; while (line[*bg]==' ' || line[*bg]=='\t') (*bg)++; - + if (line[*bg] == '\0') return 1; } - + *en = *bg; while (line[*en] != ' ' && line[*en] != '\t' && line[*en] != '\0') (*en)++; - + (*en)--; return 0; @@ -409,7 +410,7 @@ int param_getptr(const char *line, int *bg, int *en, int paramnum) int param_getlength(const char *line, int paramnum) { int bg, en; - + if (param_getptr(line, &bg, &en, paramnum)) return 0; return en - bg + 1; @@ -421,12 +422,12 @@ char param_getchar(const char *line, int paramnum) { char param_getchar_indx(const char *line, int indx, int paramnum) { int bg, en; - + if (param_getptr(line, &bg, &en, paramnum)) return 0x00; if (bg + indx > en) return '\0'; - + return line[bg + indx]; } @@ -459,7 +460,7 @@ 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 strtoul(&line[bg], NULL, 10) & 0xff; return 0; } @@ -468,7 +469,7 @@ uint8_t param_get8ex(const char *line, int paramnum, int deflt, int base) { int bg, en; - if (!param_getptr(line, &bg, &en, paramnum)) + if (!param_getptr(line, &bg, &en, paramnum)) return strtoul(&line[bg], NULL, base) & 0xff; else return deflt; @@ -478,7 +479,7 @@ uint32_t param_get32ex(const char *line, int paramnum, int deflt, int base) { int bg, en; - if (!param_getptr(line, &bg, &en, paramnum)) + if (!param_getptr(line, &bg, &en, paramnum)) return strtoul(&line[bg], NULL, base); else return deflt; @@ -488,52 +489,55 @@ uint64_t param_get64ex(const char *line, int paramnum, int deflt, int base) { int bg, en; - if (!param_getptr(line, &bg, &en, paramnum)) + if (!param_getptr(line, &bg, &en, paramnum)) return strtoull(&line[bg], NULL, base); else return deflt; } -int param_gethex(const char *line, int paramnum, uint8_t * data, int hexcnt) +int param_gethex(const char *line, int paramnum, uint8_t *data, int hexcnt) { int bg, en, temp, i; if (hexcnt % 2) return 1; - + if (param_getptr(line, &bg, &en, paramnum)) return 1; - if (en - bg + 1 != hexcnt) + if (en - bg + 1 != hexcnt) return 1; for(i = 0; i < hexcnt; i += 2) { - if (!(isxdigit((unsigned char)line[bg + i]) && isxdigit((unsigned char)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; - } + } 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; //if (hexcnt % 2) - // return 1; - + // return 1; + 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((unsigned char)line[bg + i]) && isxdigit((unsigned char)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; - } + } return 0; } @@ -546,21 +550,21 @@ int param_gethex_to_eol(const char *line, int paramnum, uint8_t * data, int maxd if (param_getptr(line, &bg, &en, paramnum)) return 1; *datalen = 0; - + int indx = bg; while (line[indx]) { if (line[indx] == '\t' || line[indx] == ' ') { indx++; continue; } - + if (isxdigit((unsigned char)line[indx])) { buf[strlen(buf) + 1] = 0x00; buf[strlen(buf)] = line[indx]; } else { // if we have symbols other than spaces and hex return 1; - } + } if (*datalen >= maxdatalen) { // if we dont have space in buffer and have symbols to translate @@ -573,14 +577,14 @@ int param_gethex_to_eol(const char *line, int paramnum, uint8_t * data, int maxd *buf = 0; (*datalen)++; } - + indx++; } - if (strlen(buf) > 0) + if (strlen(buf) > 0) //error when not completed hex bytes return 3; - + return 0; } @@ -588,7 +592,7 @@ int param_getstr(const char *line, int paramnum, char * str, size_t buffersize) { int bg, en; - if (param_getptr(line, &bg, &en, paramnum)) { + if (param_getptr(line, &bg, &en, paramnum)) { return 0; } @@ -597,10 +601,10 @@ int param_getstr(const char *line, int paramnum, char * str, size_t 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; - + return en - bg + 1; } @@ -613,100 +617,100 @@ https://github.com/ApertureLabsLtd/RFIDler/blob/master/firmware/Pic32/RFIDler.X/ // returns number of bits converted int hextobinarray(char *target, char *source) { - int length, i, count= 0; - char* start = source; - 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 { - 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; - } - - return count; + int length, i, count= 0; + char* start = source; + 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 { + 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; + } + + return count; } // 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; + unsigned char i, x; + int j = length; - if(j % 4) - return 0; + if(j % 4) + return 0; - while(j) - { - for(i= x= 0 ; i < 4 ; ++i) - x += ( source[i] << (3 - i)); - sprintf(target,"%X", (unsigned int)x); - ++target; - source += 4; - j -= 4; - } - return length; + while(j) + { + for(i= x= 0 ; i < 4 ; ++i) + x += ( source[i] << (3 - i)); + sprintf(target,"%X", (unsigned int)x); + ++target; + source += 4; + j -= 4; + } + return length; } // return parity bit required to match type uint8_t GetParity( uint8_t *bits, uint8_t type, int length) { - int x; + int x; - for(x= 0 ; length > 0 ; --length) - x += bits[length - 1]; - x %= 2; + for(x= 0 ; length > 0 ; --length) + x += bits[length - 1]; + x %= 2; - return x ^ type; + 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(uint8_t *target, uint8_t *source, uint8_t length) { - *(target++)= GetParity(source, EVEN, length / 2); - memcpy(target, source, length); - target += length; - *(target)= GetParity(source + length / 2, ODD, length / 2); + *(target++)= GetParity(source, EVEN, length / 2); + memcpy(target, source, length); + target += length; + *(target)= GetParity(source + length / 2, ODD, length / 2); } // xor two arrays together for len items. The dst array contains the new xored values. void xor(unsigned char *dst, unsigned char *src, size_t len) { for( ; len > 0; len--,dst++,src++) - *dst ^= *src; + *dst ^= *src; } // RotateLeft - Ultralight, Desfire, works on byte level // 00-01-02 >> 01-02-00 void rol(uint8_t *data, const size_t len){ - uint8_t first = data[0]; - for (size_t i = 0; i < len-1; i++) { - data[i] = data[i+1]; - } - data[len-1] = first; + uint8_t first = data[0]; + for (size_t i = 0; i < len-1; i++) { + data[i] = data[i+1]; + } + data[len-1] = first; } // Replace unprintable characters with a dot in char buffer void clean_ascii(unsigned char *buf, size_t len) { for (size_t i = 0; i < len; i++) { - if (!isprint(buf[i])) - buf[i] = '.'; + if (!isprint(buf[i])) + buf[i] = '.'; } } @@ -719,8 +723,8 @@ void strcleanrn(char *buf, size_t len) { // replace char in buffer void strcreplace(char *buf, size_t len, char from, char to) { for (size_t i = 0; i < len; i++) { - if (buf[i] == from) - buf[i] = to; + if (buf[i] == from) + buf[i] = to; } } @@ -729,7 +733,7 @@ char *strmcopy(char *buf) { if ((str = (char*) malloc(strlen(buf) + 1)) != NULL) { memset(str, 0, strlen(buf) + 1); strcpy(str, buf); - } + } return str; }