doublystring

#include<stdio.h>
#include<stdlib.h>
struct node
{
    char data[60];
    struct node *prev;
    struct node *next;
};
struct node *head=NULL;
struct node *last=NULL;
struct node *current=NULL;
void insert(char* data)
{
    struct node *temp=(struct node*)malloc(sizeof(struct node));
    strcpy(temp->data,data);
    temp->prev=NULL;
    temp->next=NULL;
    if(head==NULL)
    {
        head=temp;
        return;
    }
    current=head;
    while(current->next!=NULL)
    {
    current=current->next;
    }
    current->next=temp;
    last=temp;
    temp->prev=current;

}
void print()
{
    struct node *ptr=head;
    printf("linked list is : ");
    while(ptr->next!=NULL)
    {
        printf("%s ",ptr->data);
        ptr=ptr->next;
    }
    printf("%s",ptr->data);
}
void main()
{
    insert("susri");
    insert("rowshon");
    print();
    return 0;

}