lf viking build / lf awid refactor / lfdemod.c debugMode==2

[proxmark3-svn] / client / util.c

diff --git a/client/util.c b/client/util.c
index a077aae9020ba053f74c7d52e5e5fc82df4a32d2..056b5676016bdbbd95ed8dec5497ec7967f0a58c 100644 (file)
--- a/client/util.c
+++ b/client/util.c
@@ -46,12 +46,18 @@ int ukbhit(void) {
 #endif
 
 // log files functions
-void AddLogLine(char *fileName, char *extData, char *c) {
+void AddLogLine(char *file, char *extData, char *c) {
        FILE *fLog = NULL;
-
-       fLog = fopen(fileName, "a");
+    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);
+   
+       fLog = fopen(filename, "a");
        if (!fLog) {
-               printf("Could not append log file %s", fileName);
+               printf("Could not append log file %s", filename);
                return;
        }
 
@@ -102,30 +108,39 @@ void print_hex(const uint8_t * data, const size_t len)
        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];
-       char * tmp = buf;
+       memset(buf, 0x00, 1024);
+       char *tmp = buf;
        size_t i;
 
-       for (i=0; i < len && i < 1024/3; i++, tmp += 3)
+       for (i=0; i < maxLen; ++i, tmp += 3)
                sprintf(tmp, "%02x ", data[i]);
 
        return buf;
 }
 
-char * sprint_bin(const uint8_t * data, const size_t len) {
+char *sprint_bin_break(const uint8_t *data, const size_t len, const uint8_t breaks) {
        
-       int maxLen = ( len > 1024) ? 1024 : len;
+       int maxLen = ( len > 1020) ? 1020 : len;
        static char buf[1024];
-       char * tmp = buf;
-       size_t i;
+       memset(buf, 0x00, 1024);
+       char *tmp = buf;
 
-       for (i=0; i < maxLen; ++i, ++tmp)
-               sprintf(tmp, "%u", data[i]);
+       for (size_t i=0; i < maxLen; ++i){
+               sprintf(tmp++, "%u", data[i]);
+               if (breaks > 0 && !((i+1) % breaks))
+                       sprintf(tmp++, "%s","\n");
+       }
 
        return buf;
 }
 
+char *sprint_bin(const uint8_t *data, const size_t len) {
+       return sprint_bin_break(data, len, 0);
+}
 void num_to_bytes(uint64_t n, size_t len, uint8_t* dest)
 {
        while (len--) {
@@ -145,6 +160,29 @@ 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) {
+       while (len--) {
+               dest[len] = n & 1;
+               n >>= 1;
+       }
+}
+
+// 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;
+}
+
 //assumes little endian
 char * printBits(size_t const size, void const * const ptr)
 {
@@ -205,6 +243,7 @@ int param_getptr(const char *line, int *bg, int *en, int paramnum)
        return 0;
 }
 
+
 char param_getchar(const char *line, int paramnum)
 {
        int bg, en;
@@ -219,6 +258,35 @@ uint8_t param_get8(const char *line, int paramnum)
        return param_get8ex(line, paramnum, 10, 0);
 }
 
+/**
+ * @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;
@@ -272,7 +340,28 @@ int param_gethex(const char *line, int paramnum, uint8_t * data, int hexcnt)
 
        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;
@@ -333,7 +422,7 @@ int hextobinstring(char *target, char *source)
 
 // 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)
+int binarraytohex(char *target,char *source, int length)
 {
     unsigned char i, x;
     int j = length;
@@ -364,7 +453,7 @@ void binarraytobinstring(char *target, char *source,  int length)
 }
 
 // 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;
 
@@ -376,10 +465,19 @@ 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
-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);
 }
+
+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];
+}