used tabs instead of spaces

[proxmark3-svn] / client / cmdhflegic.c

diff --git a/client/cmdhflegic.c b/client/cmdhflegic.c
index 7b75f91c6f056e87ca59f4da7f6e6d3ed53c73b3..31d5900548c6bf01a2682c97cb2a664aabecdeaf 100644 (file)
--- a/client/cmdhflegic.c
+++ b/client/cmdhflegic.c
@@ -403,9 +403,30 @@ int CmdLegicRFRead(const char *Cmd) {
        }
        PrintAndLog("Current IV: 0x%02x", IV);
        
-       UsbCommand c= {CMD_READER_LEGIC_RF, {offset, len, IV}};
+       // get some  prng bytes from 
+       uint8_t temp[12];
+       legic_prng_init(IV);
+       for ( uint8_t j = 0; j < sizeof(temp); ++j)
+               temp[j] = legic_prng_get_bits(8);
+
+       PrintAndLog("PRNG: %s", sprint_hex(temp, sizeof(temp)));
+       
+       UsbCommand c = {CMD_READER_LEGIC_RF, {offset, len, IV}};
        clearCommandBuffer();
        SendCommand(&c);
+       UsbCommand resp;
+       if (WaitForResponseTimeout(CMD_ACK, &resp, 2000)) {
+               uint8_t isOK = resp.arg[0] & 0xFF;
+               uint16_t len = resp.arg[1] & 0x3FF;
+               if ( isOK ) {
+                       PrintAndLog("use 'hf legic decode' or");
+                       PrintAndLog("'data hexsamples %d' to view results", len);       
+                       
+               }
+       } else {
+               PrintAndLog("command execution time out");
+               return 1;
+       }
        return 0;
 }