From d6f262512c82e3910f830ffbe5feeb8172ae5216 Mon Sep 17 00:00:00 2001
From: Pawel Jalocha <Pawel.Jalocha@gmail.com>
Date: Sat, 12 Feb 2022 12:00:06 +0000
Subject: [PATCH] Have two G-records in the IGC: 1st with SHA256, 2nd with the
 signature

---
 main/nmea.h    | 2 +-
 main/sdlog.cpp | 7 +++++--
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/main/nmea.h b/main/nmea.h
index ff603b2..6917dee 100644
--- a/main/nmea.h
+++ b/main/nmea.h
@@ -11,7 +11,7 @@ inline uint8_t NMEA_AppendCheckCRNL(char *NMEA, uint8_t Len) { return NMEA_Appen
 
  class NMEA_RxMsg                    // receiver for the NMEA sentences
 { public:
-   static const uint8_t MaxLen=104;  // maximum length
+   static const uint8_t MaxLen=120;  // maximum length
    static const uint8_t MaxParms=24; // maximum number of parameters (commas)
    uint8_t Data[MaxLen];             // the message itself
    uint8_t Len;                      // number of bytes
diff --git a/main/sdlog.cpp b/main/sdlog.cpp
index 79389ba..ae92aae 100644
--- a/main/sdlog.cpp
+++ b/main/sdlog.cpp
@@ -277,8 +277,11 @@ static void IGC_Check(void)                                          // check if
       int SigLen = IGC_SignKey.Sign_MD5_SHA256(Sig, IGC_Digest, IGC_Digest_Size);
       int Len=0;
       Line[Len++]='G';                                               // produce G-record with SH256
-//      for(int Idx=0; Idx<IGC_Digest_Size; Idx++)                     // 32 SHA256 bytes
-//        Len+=Format_Hex(Line+Len, IGC_Digest[Idx]);                  // printed as hex
+      for(int Idx=0; Idx<IGC_Digest_Size; Idx++)                     // 32 SHA256 bytes
+        Len+=Format_Hex(Line+Len, IGC_Digest[Idx]);                  // printed as hex
+      Line[Len++]='\n'; Line[Len]=0;                                 // end-of-line, end-of-string
+      IGC_LogLine(Line, Len);
+      Len=1;                                                         // 2nd G-record with the signature
       for(int Idx=0; Idx<SigLen; Idx++)                              // signature bytes
         Len+=Format_Hex(Line+Len, Sig[Idx]);                         // printed as hex
       Line[Len++]='\n'; Line[Len]=0;                                 // end-of-line, end-of-string