/************************************************************************/
/* This is an example of a working master.c program.  It receives input */
/* from stdin, and outputs to a binary file called master.              */
/*                                                                      */
/* Please note: your solutions are expected to be commented thoroughly, */
/* and make appropriate use of functions and #define'd constants.       */
/************************************************************************/

#include <stdio.h>


/* The record structure  */

#define STR_LEN 256
struct master {
  long id;
  int fn;
  char df[9];
  int nc;
  char lc[5][15];
  int ns;
  int ncr;
  char cnm[5][10];
} master;


main() {
  char data[STR_LEN];
  int i,j;
  FILE *fp;
  
  fp = fopen("master","w");
  
  for (i = 0; i < 3; i++) { /* read three records */
    gets(data);
    master.id = atol(data);
    
    gets(data);
    master.fn = atoi(data);
    
    gets(data);
    strncpy(&master.df, data, 8);
    
    gets(data);
    master.nc = atoi(data);
    
    for (j = 0; j < master.nc; j++) {
      gets(data);
      strncpy(&master.lc[j], data, 15);
      master.lc[j][14] = '\0';
    }
    
    gets(data);
    master.ns = atoi(data);
    
    gets(data);
    master.ncr = atoi(data);

    for (j = 0; j < master.ncr; j++) {
      gets(data);
      strncpy(&master.cnm[j], data, 10);
      master.cnm[j][9] = '\0';
    }
    
    fwrite(&master, sizeof(master),  1, fp); 
  }
  fclose(fp);
  
  
  fp = fopen("master","r");  
  
  /* output three records to stdout, useful for generating text files... */
  for (i = 0; i < 3; i++) {  
    fread(&master, sizeof(master),  1, fp); 

    printf("%ld \n",master.id);
    printf("%d \n",master.fn);
    printf("%-8s \n",master.df);
    printf("%d \n",master.nc);
    for (j = 0; j < master.nc; j++) 
      printf("%-15s \n", master.lc[j]);
    printf("%d \n",master.ns);
    printf("%d \n",master.ncr);
    for (j = 0; j < master.ncr; j++) 
      printf("%-10s \n",master.cnm[j]);
    
  }
  fclose(fp);
} /* end of master.c */