--- shared.c.orig	Thu Dec  2 11:49:23 2004
+++ shared.c	Thu Dec  2 11:52:16 2004
@@ -58,7 +58,7 @@
 #include "bitmap/window.bits"
 #include "bitmap/anti.bits"
 
-char *sprintf();    /* UNIX brain damage */
+/* char *sprintf();    /* UNIX brain damage */
 
 /* All in and out movements except up */
 #define NOUPBITS   DLEAVE | LLEAVE | RLEAVE | HENTER | VENTER
@@ -312,21 +312,25 @@
   FILE *levelfile;
   register int i,j;
   int x,y;
-  char buf[300];
+  char buf[1300];
 
   /* Manufaction the file name by starting with the world name and */
   /* appending the level number to it. */
-  strcpy(filename,LIB);
-  strcat(filename,"/");
-  strcat(filename,worldname);
+  if (strchr (worldname, '/')) 
+      *filename = 0;
+  else {
+      strncpy(filename,LIB,sizeof(filename) - 3);
+      strncat(filename,"/",sizeof(filename) - 3);
+  }
+  strncat(filename,worldname,sizeof(filename) - 3);
   sprintf(filename + strlen(filename),"%03d",levelnum);
   /* Open level file for reading */
   levelfile = fopen(filename,"r");
   /* If level file does not exist, use the default level file. */
   if(levelfile == NULL) {
     /* Build the default level name */
-    strcpy(buf,LIB);
-    strcat(buf,"/default");
+    strncpy(buf,LIB,sizeof(filename));
+    strncat(buf,"/default",sizeof(filename));
     /* Open default level file for reading */
     levelfile = fopen(buf,"r");
     if(levelfile == NULL) {