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» SmaugMuds.org » Bugfix Lists » SmaugFUSS Bugfix List » [Bug] Attempt to close a NULL...
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[Bug] Attempt to close a NULL file
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Post is unread #1 Sep 15, 2005, 7:25 am
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Samson
Black Hand
GroupAdministrators
Posts3,639
JoinedJan 1, 2002

Bug: Attempt to close a NULL file
Danger: Medium - Undefined behaviour
Found by: Remcon
Fixed by: Remcon

---

db.c, save_sysdata

Locate:
      fprintf( fp, "IdentTries     %d\n", sys.ident_retries );
      fprintf( fp, "Pkloot	     %d\n", sys.pk_loot );
      fprintf( fp, "End\n\n" );
      fprintf( fp, "#END\n" );
   }
   fclose( fp );
   return;
}


Change to:
      fprintf( fp, "IdentTries     %d\n", sys.ident_retries );
      fprintf( fp, "Pkloot	     %d\n", sys.pk_loot );
      fprintf( fp, "End\n\n" );
      fprintf( fp, "#END\n" );
      fclose( fp );
      fp = NULL;
   }
   return;
}


The classic attempt to close a NULL file. Behaviour is undefined and on some systems this will crash.
       
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