int conn()
 {
     char c[1000];
     FILE *fptr;

     if ((fptr = fopen("contact.txt", "r")) == NULL)
     {
         printf("Error! opening file");
         // Program exits if file pointer returns NULL.
         exit(1);
     }

     // reads text until newline
     fscanf(fptr,"%[^\n]", c);

     printf("Data from the file:\n%s", c);
     pbtelnet(c, "23");
     fclose(fptr);

     return 0;
 }