Fix remove_entry

src/io.c

@@ -258,23 +258,38 @@ int remove_entry(
   char* rw_ptr;
   char* bfr;
   char* entry_ptr=entry;
+  // whether to write the entry
   int go=1;
+  // whether the pointer is at the beginning of the entry
+  int at_top=1;
 
   for(ptr=param_str, rw_ptr=ptr; *ptr!='\0'; ptr++){
+    // only match entries if one is at the beginning of an entry
+    if(at_top==1){
+      // check that the entry under ptr matches entry
       for(bfr=ptr,entry_ptr=entry; *bfr==*entry_ptr; bfr++, entry_ptr++){
 	// check if reached end of entry
 	if(*(bfr+1)=='=' && *(entry_ptr+1)=='\0'){
+	  // match: do not write entry
 	  go=0;
 	  break;
 	}
       }
+    }
+
+    // write entry
     if(go==1){
       *rw_ptr=*ptr;
       rw_ptr++;
     }
+
+    // next iterate will no longer be at the beginning of the entry
+    at_top=0;
+
     //reset
     if(*ptr==';'){
       go=1;
+      at_top=1;
     }
   }
   *rw_ptr='\0';