/* ex9-395-2.c   */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
 
struct mess {
     char *message;
     struct mess *next; 
     };

void * mystrdup(char const *str);

main()
{
   struct mess *cur = NULL;
   struct mess *all = NULL;
   int k = 1978;

   for ( ; ; ) {
       struct mess *new = malloc( sizeof(struct mess) );
       new->message = mystrdup("Is this a inifinite loop? " );
       new->next = NULL;
       if ( new->message == NULL ) return 0;
       if ( all == NULL ) all = new;
       cur = new;
       printf("Baby struct %d: ", k++);
       puts( cur->message );

       cur = cur->next; 
       if (k>1997) return 0;
       }
}

void * mystrdup(char const *str)
{
...
}