#include <stdio.h>
#include <stdlib.h>
#define  NULL 0

struct linked_list
{
int number;
struct linked_list *next;
};
typedef struct linked_list node;  /* node type defined */

main()
{
node *head;
void create(node *p);
int count(node *p);
void print(node *p);
head = (node *)malloc(sizeof(node));
create(head);
printf("\n");
printf(head);
printf("\n");
printf("\nNumber of items = %d \n", count(head));
}
void create(node *list)
{
printf("Input a number\n");
printf("(type -999 at end): ");
scanf("%d", &list -> number); /* create current node */

if(list->number == -999)
{
list->next = NULL;
}

else  /*create next node */
{
list->next = (node *)malloc(sizeof(node));
create(list->next);  */ Recursion occurs */
}
return;
}
void print(node *list)
{
if(list->next != NULL)
{
  printf("%d-->",list ->number);  /* print current item */

   if(list->next->next == NULL)
   printf("%d", list->next->number);

  print(list->next); /* move to next item */
}
return;
}

int count(node *list)
{
if(list->next == NULL)
       return (0);
else
       return(1+ count(list->next));
}

Output

Input a number
(type -999 to end); 60
Input a number
(type -999 to end); 20
Input a number
(type -999 to end); 10
Input a number
(type -999 to end); 40
Input a number
(type -999 to end); 30
Input a number
(type -999 to end); 50
Input a number
(type -999 to end); -999

60 -->20 -->10 -->40 -->30 -->50 --> -999

Number of items = 6