Fix a possible endless loop due to insufficient space in a char array for some messages

diff --git a/src/ATC/transmissionlist.cxx b/src/ATC/transmissionlist.cxx
index 7f5b09f62c673ff7238e17b799244e73e5e277e4..e09dc6fd1b50849f77d644780fbe65a72d891078 100644 (file)
--- a/src/ATC/transmissionlist.cxx
+++ b/src/ATC/transmissionlist.cxx
@@ -142,7 +142,7 @@ bool FGTransmissionList::query_station( const int &station, FGTransmission *t,
 string FGTransmissionList::gen_text(const int &station, const TransCode code, 
                                     const TransPar &tpars, const bool ttext )
 {
-       const int cmax = 100;
+       const int cmax = 300;
        string message;
        char tag[4];
        char crej = '@';
@@ -167,6 +167,7 @@ string FGTransmissionList::gen_text(const int &station, const TransCode code,
                        else message = current->get_menutext();
                        strcpy( &mes[0], message.c_str() ); 
                        
+                       int check = 0;  // If mes gets overflowed the while loop can go infinite
                        while ( strchr(&mes[0], crej) != NULL  ) {
                                pos = strchr( &mes[0], crej );
                                bcopy(pos, &tag[0], 3);
@@ -240,6 +241,12 @@ string FGTransmissionList::gen_text(const int &station, const TransCode code,
                                }
                                strcat( &dum[0], &mes[len+3] );
                                strcpy( &mes[0], &dum[0] );
+                               
+                               ++check;
+                               if(check > 10) {
+                                       SG_LOG(SG_ATC, SG_WARN, "WARNING: Possibly endless loop terminated in FGTransmissionlist::gen_text(...)"); 
+                                       break;
+                               }
                        }
                        
                        //cout << mes  << endl;