Thread: creating link list and reading it to print output

Code:

#include<stdio.h>
#include<string.h>
#include<ctype.h>
#include<stdlib.h>
struct node 
{
       struct node *next;
       int nodevalue;
};
struct node *start,*tail;
struct node *createlist(int x);
 main()
{       int i;
       struct node * temp1;
     start=(struct node *)malloc(sizeof(struct node));
     tail=start;
           createlist(48);
           createlist(65);
           createlist(98);
            temp1=start->next;
           for(i=0;i<1;i++)
           temp1=temp1->next;
           printf("value is %d ",temp1->nodevalue);
          
 getch();
}
struct node *createlist(int x)
{
       struct node *temp;
           
            if(temp=(struct node *)malloc(sizeof(struct node)))
            {
             temp->nodevalue=x;
             temp->next=NULL;
             tail->next=temp;
             temp=tail;
             return tail;
             }
              if(tail==start && tail->nodevalue==NULL)
            {
               printf("list empty");
               } 
             else
             printf("memory shortage");
            return NULL;
}

when i run this program i find segmentation fault how can i remove this