Bugfixes for LF FDX

[proxmark3-svn] / client / util.c

diff --git a/client/util.c b/client/util.c
index 92b0e7a6ab22dadd8160252f6364734b8c7a870d..f13d730cbd984c5c89c0c4bcd2fa364e26848e2f 100644 (file)
--- a/client/util.c
+++ b/client/util.c
@@ -16,7 +16,7 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <time.h>
 #include <stdlib.h>
 #include <stdio.h>
 #include <time.h>

-#include "data.h"
+#include <stdarg.h>

 
 #ifdef _WIN32
 #include <windows.h>
 
 #ifdef _WIN32
 #include <windows.h>


@@ -52,7 +52,22 @@ int ukbhit(void)
   return ( error == 0 ? cnt : -1 );
 }
 
   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 <conio.h>
 int ukbhit(void) {
 
 #include <conio.h>
 int ukbhit(void) {


@@ -111,63 +126,86 @@ void FillFileNameByUID(char *fileName, uint8_t * uid, char *ext, int byteCount)
        sprintf(fnameptr, "%s", ext); 
 }
 
        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) {
 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;
-
-       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, 0, 1, false);

 
        return buf;
 }
 
 char *sprint_hex_inrow_ex(const uint8_t *data, const size_t len, const size_t min_str_len) {
 
        return buf;
 }
 
 char *sprint_hex_inrow_ex(const uint8_t *data, const size_t len, const size_t min_str_len) {

-       
-       int maxLen = ( len > 1024/2) ? 1024/2 : len;
-       static char buf[1024] = {0};
-       char *tmp = buf;
-       size_t i;
+       static char buf[4097] = {0};

 
 

-       for (i = 0; i < maxLen; ++i, tmp += 2)
-               sprintf(tmp, "%02x", (unsigned int) data[i]);
-       
-       i *= 2;
-       int minStrLen = min_str_len > i ? min_str_len : 0;
-       for(; i < minStrLen; i++, tmp += 1) 
-               sprintf(tmp, " ");
+       hex_to_buffer((uint8_t *)buf, data, len, sizeof(buf) - 1, min_str_len, 0, false);

 
        return buf;
 }
 
        return buf;
 }


@@ -211,27 +249,6 @@ char *sprint_bin(const uint8_t *data, const size_t len) {
        return sprint_bin_break(data, len, 0);
 }
 
        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_ex(const uint8_t *data, const size_t len, const size_t min_str_len) {
        static char buf[1024];
        char *tmp = buf;
 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;


@@ -251,10 +268,6 @@ char *sprint_ascii_ex(const uint8_t *data, const size_t len, const size_t min_st
        return buf;
 }
 
        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--) {
 void num_to_bytes(uint64_t n, size_t len, uint8_t* dest)
 {
        while (len--) {


@@ -315,16 +328,6 @@ uint8_t *SwapEndian64(const uint8_t *src, const size_t len, const uint8_t blockS
        return tmp;
 }
 
        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)];
-               }
-       }
-}
-

 //assumes little endian
 char * printBits(size_t const size, void const * const ptr)
 {
 //assumes little endian
 char * printBits(size_t const size, void const * const ptr)
 {


@@ -347,6 +350,23 @@ char * printBits(size_t const size, void const * const ptr)
        return buf;
 }
 
        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
 //  -------------------------------------------------------------------------
 //  -------------------------------------------------------------------------
 //  string parameters lib
 //  -------------------------------------------------------------------------


@@ -487,7 +507,7 @@ int param_gethex(const char *line, int paramnum, uint8_t * data, int hexcnt)
                return 1;
 
        for(i = 0; i < hexcnt; i += 2) {
                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;
                
                sscanf((char[]){line[bg + i], line[bg + i + 1], 0}, "%X", &temp);
                data[i / 2] = temp & 0xff;


@@ -509,7 +529,7 @@ int param_gethex_ex(const char *line, int paramnum, uint8_t * data, int *hexcnt)
                return 1;
 
        for(i = 0; i < *hexcnt; i += 2) {
                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;
                
                sscanf((char[]){line[bg + i], line[bg + i + 1], 0}, "%X", &temp);
                data[i / 2] = temp & 0xff;


@@ -534,7 +554,7 @@ int param_gethex_to_eol(const char *line, int paramnum, uint8_t * data, int maxd
                        continue;
                }
                
                        continue;
                }
                

-               if (isxdigit(line[indx])) {
+               if (isxdigit((unsigned char)line[indx])) {

                        buf[strlen(buf) + 1] = 0x00;
                        buf[strlen(buf)] = line[indx];
                } else {
                        buf[strlen(buf) + 1] = 0x00;
                        buf[strlen(buf)] = line[indx];
                } else {


@@ -611,7 +631,7 @@ int hextobinarray(char *target, char *source)
         else if (x >= 'A' && x <= 'F')
             x -= 'A' - 10;
         else {
         else if (x >= 'A' && x <= 'F')
             x -= 'A' - 10;
         else {

-               printf("Discovered unknown character %c %d at idx %d of %s\n", x, x, source - start, start);
+               printf("Discovered unknown character %c %d at idx %tu of %s\n", x, x, source - start, start);

             return 0;
         }
         // output
             return 0;
         }
         // output


@@ -622,17 +642,6 @@ int hextobinarray(char *target, char *source)
     return count;
 }
 
     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)
 // 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)


@@ -655,16 +664,6 @@ int binarraytohex(char *target,char *source, int length)
     return 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)
 {
 // return parity bit required to match type
 uint8_t GetParity( uint8_t *bits, uint8_t type, int length)
 {


@@ -692,13 +691,6 @@ void xor(unsigned char *dst, unsigned char *src, size_t len) {
        *dst ^= *src;
 }
 
        *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){
 // RotateLeft - Ultralight, Desfire, works on byte level
 // 00-01-02  >> 01-02-00
 void rol(uint8_t *data, const size_t len){