FIX: minor fixes in hf mfu, from @marshmello42 's branch.

[proxmark3-svn] / client / util.c

diff --git a/client/util.c b/client/util.c
index b8d5c316cf9bce03cfd4faab842d4ad1e0185423..de1cbe94571a18cc0cbe0d8e534f083a76d6f54e 100644 (file)
--- a/client/util.c
+++ b/client/util.c
@@ -9,6 +9,7 @@
 //-----------------------------------------------------------------------------
 
 #include "util.h"
 //-----------------------------------------------------------------------------
 
 #include "util.h"

+#define MAX_BIN_BREAK_LENGTH   (3072+384+1)

 
 #ifndef _WIN32
 #include <termios.h>
 
 #ifndef _WIN32
 #include <termios.h>


@@ -20,7 +21,6 @@ int ukbhit(void)
   int error;
   static struct termios Otty, Ntty;
 
   int error;
   static struct termios Otty, Ntty;
 

-

   tcgetattr( 0, &Otty);
   Ntty = Otty;
 
   tcgetattr( 0, &Otty);
   Ntty = Otty;
 


@@ -108,32 +108,61 @@ void print_hex(const uint8_t * data, const size_t len)
        printf("\n");
 }
 
        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];
        
        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)
        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;
 }
 
 
        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
+               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;
 }
 
 
        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--) {
 void num_to_bytes(uint64_t n, size_t len, uint8_t* dest)
 {
        while (len--) {


@@ -153,26 +182,28 @@ uint64_t bytes_to_num(uint8_t* src, size_t len)
        return num;
 }
 
        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];
+       //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;

 }
 
 //  -------------------------------------------------------------------------
 }
 
 //  -------------------------------------------------------------------------


@@ -213,6 +244,7 @@ int param_getptr(const char *line, int *bg, int *en, int paramnum)
        return 0;
 }
 
        return 0;
 }
 

+

 char param_getchar(const char *line, int paramnum)
 {
        int bg, en;
 char param_getchar(const char *line, int paramnum)
 {
        int bg, en;


@@ -224,7 +256,36 @@ char param_getchar(const char *line, int paramnum)
 
 uint8_t param_get8(const char *line, int paramnum)
 {
 
 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)
 }
 
 uint8_t param_get8ex(const char *line, int paramnum, int deflt, int base)


@@ -263,13 +324,11 @@ int param_gethex(const char *line, int paramnum, uint8_t * data, int hexcnt)
 {
        int bg, en, temp, i;
 
 {
        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 (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;
 
        for(i = 0; i < hexcnt; i += 2) {
                if (!(isxdigit(line[bg + i]) && isxdigit(line[bg + i + 1])) )   return 1;


@@ -280,7 +339,28 @@ int param_gethex(const char *line, int paramnum, uint8_t * data, int hexcnt)
 
        return 0;
 }
 
        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;
 int param_getstr(const char *line, int paramnum, char * str)
 {
        int bg, en;


@@ -372,7 +452,7 @@ void binarraytobinstring(char *target, char *source,  int length)
 }
 
 // return parity bit required to match type
 }
 
 // return parity bit required to match type

-uint8_t GetParity( char *bits, uint8_t type, int length)
+uint8_t GetParity( uint8_t *bits, uint8_t type, int length)

 {
     int x;
 
 {
     int x;
 


@@ -384,10 +464,42 @@ uint8_t GetParity( char *bits, uint8_t type, int length)
 }
 
 // add HID parity to binary array: EVEN prefix for 1st half of ID, ODD suffix for 2nd half
 }
 
 // add HID parity to binary array: EVEN prefix for 1st half of ID, ODD suffix for 2nd half

-void wiegand_add_parity(char *target, char *source, char length)
+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);
 }

+
+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