add endianess check to epg.dat

diff --git a/lib/dvb/epgcache.cpp b/lib/dvb/epgcache.cpp
index 59b8810..716033e 100644 (file)
--- a/lib/dvb/epgcache.cpp
+++ b/lib/dvb/epgcache.cpp
@@ -725,9 +725,17 @@ void eEPGCache::load()
                if ( md5ok )
 #endif
                {
+                       int magic;
+                       fread( &magic, sizeof(int), 1, f);
+                       if (magic != 0x98765432)
+                       {
+                               eDebug("epg file has incorrect byte order.. dont read it");
+                               fclose(f);
+                               return;
+                       }
                        char text1[13];
                        fread( text1, 13, 1, f);
-                       if ( !strncmp( text1, "ENIGMA_EPG_V4", 13) )
+                       if ( !strncmp( text1, "ENIGMA_EPG_V5", 13) )
                        {
                                fread( &size, sizeof(int), 1, f);
                                while(size--)
@@ -823,7 +831,9 @@ void eEPGCache::save()
        int cnt=0;
        if ( f )
        {
-               const char *text = "ENIGMA_EPG_V4";
+               int magic = 0x98765432;
+               fwrite( &magic, sizeof(int), 1, f);
+               const char *text = "ENIGMA_EPG_V5";
                fwrite( text, 13, 1, f );
                int size = eventDB.size();
                fwrite( &size, sizeof(int), 1, f );