//-----------------------------------------------------------------------------
#include "util.h"
+#define MAX_BIN_BREAK_LENGTH (3072+384+1)
#ifndef _WIN32
#include <termios.h>
int error;
static struct termios Otty, Ntty;
-
tcgetattr( 0, &Otty);
Ntty = Otty;
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];
+ memset(buf, 0x00, 1024);
char * tmp = buf;
size_t i;
for (i=0; i < maxLen; ++i, tmp += 3)
- sprintf(tmp, "%02x ", data[i]);
+ sprintf(tmp, "%02X ", data[i]);
return buf;
}
-char * sprint_bin(const uint8_t * data, const size_t len) {
-
- int maxLen = ( len > 1024) ? 1024 : len;
- static char buf[1024];
- char * tmp = buf;
- size_t i;
-
- for (i=0; i < maxLen; ++i, ++tmp)
- sprintf(tmp, "%u", data[i]);
+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;
+ if (breaks==0)
+ max_len = ( len > MAX_BIN_BREAK_LENGTH ) ? MAX_BIN_BREAK_LENGTH : len;
+ else
+ max_len = ( len+(len/breaks) > MAX_BIN_BREAK_LENGTH ) ? MAX_BIN_BREAK_LENGTH : len+(len/breaks);
+
+ static char buf[MAX_BIN_BREAK_LENGTH]; // 3072 + end of line characters if broken at 8 bits
+ //clear memory
+ memset(buf, 0x00, sizeof(buf));
+ char *tmp = buf;
+
+ size_t in_index = 0;
+ // loop through the out_index to make sure we don't go too far
+ for (size_t out_index=0; out_index < max_len; out_index++) {
+ // set character
+ sprintf(tmp++, "%u", data[in_index]);
+ // check if a line break is needed and we have room to print it in our array
+ if ( (breaks > 0) && !((in_index+1) % breaks) && (out_index+1 != max_len) ) {
+ // increment and print line break
+ out_index++;
+ sprintf(tmp++, "%s","\n");
+ }
+ in_index++;
+ }
return buf;
}
+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];
+ memset(buf, 0x00, 1024);
+ char *tmp = buf;
+ sprintf(tmp, "%s| %s", sprint_hex(data, len) , data);
+ return buf;
+}
void num_to_bytes(uint64_t n, size_t len, uint8_t* dest)
{
while (len--) {
return num;
}
-//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;
+void num_to_bytebits(uint64_t n, size_t len, uint8_t *dest) {
+ while (len--) {
+ dest[len] = n & 1;
+ n >>= 1;
+ }
+}
- for (i=size-1;i>=0;i--)
- {
- for (j=7;j>=0;j--)
- {
- byte = b[i] & (1<<j);
- byte >>= j;
- sprintf(tmp, "%u", byte);
- tmp++;
- }
- }
- return buf;
+// 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;
}
// -------------------------------------------------------------------------
return 0;
}
+
char param_getchar(const char *line, int paramnum)
{
int bg, en;
uint8_t param_get8(const char *line, int paramnum)
{
- return param_get8ex(line, paramnum, 10, 0);
+ return param_get8ex(line, paramnum, 0, 10);
+}
+
+/**
+ * @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, temp, i;
- if (hexcnt % 2)
- return 1;
+ if (hexcnt & 1) return 1;
if (param_getptr(line, &bg, &en, paramnum)) return 1;
- if (en - bg + 1 != hexcnt)
- return 1;
+ if (en - bg + 1 != hexcnt) return 1;
for(i = 0; i < hexcnt; i += 2) {
if (!(isxdigit(line[bg + i]) && isxdigit(line[bg + i + 1])) ) return 1;
return 0;
}
+int param_gethex_ex(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;
+
+ *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;
+
+ sscanf((char[]){line[bg + i], line[bg + i + 1], 0}, "%X", &temp);
+ data[i / 2] = temp & 0xff;
+ }
+ return 0;
+}
int param_getstr(const char *line, int paramnum, char * str)
{
int bg, en;
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( uint8_t *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(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);
+}
+
+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];
+}
+
+uint32_t PackBits(uint8_t start, uint8_t len, uint8_t* bits) {
+
+ if (len > 32) return 0;
+
+ int i = start;
+ int j = len-1;
+ uint32_t tmp = 0;
+
+ for (; j >= 0; --j, ++i)
+ tmp |= bits[i] << j;
+
+ return tmp;
+}
+
+// RotateLeft - Ultralight, Desfire
+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;
+}
\ No newline at end of file
projects / proxmark3-svn / blobdiff