Fixed which was leaving the RF field on when interrupted by keyboard

CHANGELOG.md

@@ -3,13 +3,14 @@ All notable changes to this project will be documented in this file.
 This project uses the changelog in accordance with [keepchangelog](http://keepachangelog.com/). Please use this to write notable changes, which is not the same as git commit log...
 
 ## [unreleased][unreleased]
+- Fixed `hf mf fchk` which was leaving the RF field on when interrupted by keyboard (@doegox)
 - Changed file saving: do not prepend with default path if given path is an absolute path (@doegox)
 - Added few tools to crack static encrypted nonce tags such as FM11RF08S (@doegox)
 - Added `hf mf isen` for analyzing some static encrypted nonce tags (@doegox)
 - Changed `hf mf rdbl/wrbl/rdsc/nested` to support extended authentication commands (@doegox)
 - Changed `hf mf fchk` to allow cracking a single key and show progress info (@doegox)
 - Changed `trace list -t mf` to add support for extended authentication commands (@doegox)
-- Fixed `output_grabber.py` to allow several calls in a script (@doegox)
+- Fixed `output_grabber.py` to allow several calls in a script, make it robust to emoji and make it available to scripts (@doegox)
 - Changed `validate_prng_nonce` for a much faster version (@doegox)
 - Changed standalone mode HF_MATTYRUN - support more card sizes, user dictionaries, improved emulation (@michaelroland)
 - Changed `hf iclass dump --ns` - now supports the nosave flag (@iceman1001)

client/src/cmdhfmf.c

@@ -3392,6 +3392,13 @@ static int CmdHF14AMfChk_fast(const char *Cmd) {
                 if (kbd_enter_pressed()) {
                     PrintAndLogEx(NORMAL, "");
                     PrintAndLogEx(WARNING, "\naborted via keyboard!\n");
+                    // field is still ON if not on last chunk
+                    clearCommandBuffer();
+                    SendCommandNG(CMD_FPGA_MAJOR_MODE_OFF, NULL, 0);
+                    // TODO: we're missing these cleanups on arm side, not sure if it's important...
+                    // set_tracing(false);
+                    // BigBuf_free();
+                    // BigBuf_Clear_ext(false);
                     goto out;
                 }
                 PrintAndLogEx(INPLACE, "Testing %5i/%5i %02.1f%%", i, keycnt, (float)i * 100 / keycnt);