mirror of
https://github.com/RfidResearchGroup/proxmark3.git
synced 2024-11-14 21:58:44 +08:00
1b492a97af
FIX: a suggested patch for "hf mf csetuid" (https://github.com/Proxmark/proxmark3/issues/35) FIX: fixed a bug in iso14443a_select_card where the len variable wasnt set, this made desfire/magic cards not work.
393 lines
8.7 KiB
C
393 lines
8.7 KiB
C
//-----------------------------------------------------------------------------
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// Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
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//
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// This code is licensed to you under the terms of the GNU GPL, version 2 or,
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// at your option, any later version. See the LICENSE.txt file for the text of
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// the license.
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//-----------------------------------------------------------------------------
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// utilities
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//-----------------------------------------------------------------------------
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#include "util.h"
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#ifndef _WIN32
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#include <termios.h>
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#include <sys/ioctl.h>
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int ukbhit(void)
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{
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int cnt = 0;
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int error;
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static struct termios Otty, Ntty;
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tcgetattr( 0, &Otty);
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Ntty = Otty;
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Ntty.c_iflag = 0; /* input mode */
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Ntty.c_oflag = 0; /* output mode */
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Ntty.c_lflag &= ~ICANON; /* raw mode */
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Ntty.c_cc[VMIN] = CMIN; /* minimum time to wait */
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Ntty.c_cc[VTIME] = CTIME; /* minimum characters to wait for */
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if (0 == (error = tcsetattr(0, TCSANOW, &Ntty))) {
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error += ioctl(0, FIONREAD, &cnt);
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error += tcsetattr(0, TCSANOW, &Otty);
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}
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return ( error == 0 ? cnt : -1 );
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}
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#else
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#include <conio.h>
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int ukbhit(void) {
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return kbhit();
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}
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#endif
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// log files functions
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void AddLogLine(char *file, char *extData, char *c) {
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FILE *fLog = NULL;
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char filename[FILE_PATH_SIZE] = {0x00};
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int len = 0;
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len = strlen(file);
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if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;
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memcpy(filename, file, len);
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fLog = fopen(filename, "a");
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if (!fLog) {
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printf("Could not append log file %s", filename);
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return;
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}
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fprintf(fLog, "%s", extData);
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fprintf(fLog, "%s\n", c);
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fclose(fLog);
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}
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void AddLogHex(char *fileName, char *extData, const uint8_t * data, const size_t len){
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AddLogLine(fileName, extData, sprint_hex(data, len));
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}
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void AddLogUint64(char *fileName, char *extData, const uint64_t data) {
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char buf[100] = {0};
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sprintf(buf, "%x%x", (unsigned int)((data & 0xFFFFFFFF00000000) >> 32), (unsigned int)(data & 0xFFFFFFFF));
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AddLogLine(fileName, extData, buf);
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}
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void AddLogCurrentDT(char *fileName) {
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char buff[20];
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struct tm *curTime;
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time_t now = time(0);
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curTime = gmtime(&now);
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strftime (buff, sizeof(buff), "%Y-%m-%d %H:%M:%S", curTime);
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AddLogLine(fileName, "\nanticollision: ", buff);
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}
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void FillFileNameByUID(char *fileName, uint8_t * uid, char *ext, int byteCount) {
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char * fnameptr = fileName;
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memset(fileName, 0x00, 200);
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for (int j = 0; j < byteCount; j++, fnameptr += 2)
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sprintf(fnameptr, "%02x", uid[j]);
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sprintf(fnameptr, "%s", ext);
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}
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// printing and converting functions
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void print_hex(const uint8_t * data, const size_t len)
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{
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size_t i;
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for (i=0; i < len; i++)
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printf("%02x ", data[i]);
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printf("\n");
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}
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char * sprint_hex(const uint8_t * data, const size_t len) {
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int maxLen = ( len > 1024/3) ? 1024/3 : len;
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static char buf[1024];
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char * tmp = buf;
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size_t i;
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for (i=0; i < maxLen; ++i, tmp += 3)
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sprintf(tmp, "%02x ", data[i]);
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return buf;
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}
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char * sprint_bin(const uint8_t * data, const size_t len) {
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int maxLen = ( len > 1024) ? 1024 : len;
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static char buf[1024];
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char * tmp = buf;
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size_t i;
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for (i=0; i < maxLen; ++i, ++tmp)
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sprintf(tmp, "%u", data[i]);
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return buf;
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}
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void num_to_bytes(uint64_t n, size_t len, uint8_t* dest)
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{
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while (len--) {
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dest[len] = (uint8_t) n;
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n >>= 8;
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}
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}
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uint64_t bytes_to_num(uint8_t* src, size_t len)
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{
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uint64_t num = 0;
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while (len--)
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{
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num = (num << 8) | (*src);
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src++;
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}
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return num;
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}
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//assumes little endian
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char * printBits(size_t const size, void const * const ptr)
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{
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unsigned char *b = (unsigned char*) ptr;
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unsigned char byte;
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static char buf[1024];
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char * tmp = buf;
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int i, j;
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for (i=size-1;i>=0;i--)
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{
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for (j=7;j>=0;j--)
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{
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byte = b[i] & (1<<j);
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byte >>= j;
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sprintf(tmp, "%u", byte);
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tmp++;
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}
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}
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return buf;
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}
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// -------------------------------------------------------------------------
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// string parameters lib
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// -------------------------------------------------------------------------
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// -------------------------------------------------------------------------
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// line - param line
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// bg, en - symbol numbers in param line of beginning an ending parameter
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// paramnum - param number (from 0)
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// -------------------------------------------------------------------------
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int param_getptr(const char *line, int *bg, int *en, int paramnum)
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{
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int i;
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int len = strlen(line);
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*bg = 0;
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*en = 0;
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// skip spaces
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while (line[*bg] ==' ' || line[*bg]=='\t') (*bg)++;
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if (*bg >= len) {
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return 1;
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}
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for (i = 0; i < paramnum; i++) {
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while (line[*bg]!=' ' && line[*bg]!='\t' && line[*bg] != '\0') (*bg)++;
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while (line[*bg]==' ' || line[*bg]=='\t') (*bg)++;
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if (line[*bg] == '\0') return 1;
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}
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*en = *bg;
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while (line[*en] != ' ' && line[*en] != '\t' && line[*en] != '\0') (*en)++;
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(*en)--;
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return 0;
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}
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char param_getchar(const char *line, int paramnum)
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{
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int bg, en;
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if (param_getptr(line, &bg, &en, paramnum)) return 0x00;
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return line[bg];
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}
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uint8_t param_get8(const char *line, int paramnum)
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{
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return param_get8ex(line, paramnum, 10, 0);
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}
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uint8_t param_get8ex(const char *line, int paramnum, int deflt, int base)
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{
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int bg, en;
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if (!param_getptr(line, &bg, &en, paramnum))
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return strtoul(&line[bg], NULL, base) & 0xff;
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else
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return deflt;
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}
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uint32_t param_get32ex(const char *line, int paramnum, int deflt, int base)
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{
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int bg, en;
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if (!param_getptr(line, &bg, &en, paramnum))
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return strtoul(&line[bg], NULL, base);
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else
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return deflt;
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}
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uint64_t param_get64ex(const char *line, int paramnum, int deflt, int base)
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{
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int bg, en;
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if (!param_getptr(line, &bg, &en, paramnum))
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return strtoull(&line[bg], NULL, base);
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else
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return deflt;
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return 0;
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}
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int param_gethex(const char *line, int paramnum, uint8_t * data, int hexcnt)
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{
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int bg, en, temp, i;
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if (hexcnt % 2)
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return 1;
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if (param_getptr(line, &bg, &en, paramnum)) return 1;
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if (en - bg + 1 != hexcnt)
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return 1;
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for(i = 0; i < hexcnt; i += 2) {
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if (!(isxdigit(line[bg + i]) && isxdigit(line[bg + i + 1])) ) return 1;
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sscanf((char[]){line[bg + i], line[bg + i + 1], 0}, "%X", &temp);
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data[i / 2] = temp & 0xff;
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}
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return 0;
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}
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int param_getstr(const char *line, int paramnum, char * str)
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{
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int bg, en;
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if (param_getptr(line, &bg, &en, paramnum)) return 0;
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memcpy(str, line + bg, en - bg + 1);
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str[en - bg + 1] = 0;
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return en - bg + 1;
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}
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/*
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The following methods comes from Rfidler sourcecode.
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https://github.com/ApertureLabsLtd/RFIDler/blob/master/firmware/Pic32/RFIDler.X/src/
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*/
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// convert hex to sequence of 0/1 bit values
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// returns number of bits converted
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int hextobinarray(char *target, char *source)
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{
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int length, i, count= 0;
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char x;
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length = strlen(source);
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// process 4 bits (1 hex digit) at a time
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while(length--)
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{
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x= *(source++);
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// capitalize
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if (x >= 'a' && x <= 'f')
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x -= 32;
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// convert to numeric value
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if (x >= '0' && x <= '9')
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x -= '0';
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else if (x >= 'A' && x <= 'F')
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x -= 'A' - 10;
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else
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return 0;
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// output
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for(i= 0 ; i < 4 ; ++i, ++count)
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*(target++)= (x >> (3 - i)) & 1;
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}
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return count;
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}
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// convert hex to human readable binary string
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int hextobinstring(char *target, char *source)
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{
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int length;
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if(!(length= hextobinarray(target, source)))
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return 0;
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binarraytobinstring(target, target, length);
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return length;
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}
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// convert binary array of 0x00/0x01 values to hex (safe to do in place as target will always be shorter than source)
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// return number of bits converted
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int binarraytohex(char *target, char *source, int length)
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{
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unsigned char i, x;
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int j = length;
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if(j % 4)
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return 0;
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while(j)
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{
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for(i= x= 0 ; i < 4 ; ++i)
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x += ( source[i] << (3 - i));
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sprintf(target,"%X", x);
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++target;
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source += 4;
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j -= 4;
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}
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return length;
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}
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// convert binary array to human readable binary
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void binarraytobinstring(char *target, char *source, int length)
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{
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int i;
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for(i= 0 ; i < length ; ++i)
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*(target++)= *(source++) + '0';
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*target= '\0';
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}
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// return parity bit required to match type
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uint8_t GetParity( char *bits, uint8_t type, int length)
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{
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int x;
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for(x= 0 ; length > 0 ; --length)
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x += bits[length - 1];
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x %= 2;
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return x ^ type;
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}
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// add HID parity to binary array: EVEN prefix for 1st half of ID, ODD suffix for 2nd half
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void wiegand_add_parity(char *target, char *source, char length)
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{
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*(target++)= GetParity(source, EVEN, length / 2);
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memcpy(target, source, length);
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target += length;
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*(target)= GetParity(source + length / 2, ODD, length / 2);
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}
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