- uint8_t got[TRACE_BUFFER_SIZE];
- GetFromBigBuf(got,sizeof(got),0);
- WaitForResponse(CMD_ACK,NULL);
-
- PrintAndLog("recorded activity:");
+ uint8_t *got = malloc(USB_CMD_DATA_SIZE);
+
+ // Query for the actual size of the trace
+ UsbCommand response;
+ GetFromBigBuf(got, USB_CMD_DATA_SIZE, 0);
+ WaitForResponse(CMD_ACK, &response);
+ uint16_t traceLen = response.arg[2];
+ if (traceLen > USB_CMD_DATA_SIZE) {
+ uint8_t *p = realloc(got, traceLen);
+ if (p == NULL) {
+ PrintAndLog("Cannot allocate memory for trace");
+ free(got);
+ return 2;
+ }
+ got = p;
+ GetFromBigBuf(got, traceLen, 0);
+ WaitForResponse(CMD_ACK,NULL);
+ }
+ PrintAndLog("recorded activity: (TraceLen = %d bytes)", traceLen);