rem: unsigned char* search_the_list(struct node *head, char *name)
add: char* search_the_list(struct node *head, char *name)
context: unsigned char* search_the_list(struct node *head, char *name){	struct node *n;	n = head;	while (n) {		if (strcasecmp(n->name,name)==0)			return n->offset;		n = n->next;	}	return 0;}