/* 
 * filer2.c
 */
#include <stdio.h>

#define STRLEN 80 // macro: replace STRLEN with 80

int main(void)
{
  FILE * fp; // declare FILE poitner: fp
  char ch_string[STRLEN]; // delcare char array:ch_string
  char fname[15]; // declare char array: fname
  printf("Enter the name of the file to read:"); // prompt for input
  scanf("%s", fname); // read from stdin, interpret as string
                      // assign to char array fname

  if( (fp=fopen(fname, "r")) == NULL ) // open handle to file, for reading
                                       // assign handle address to file pointer fp
                                       // If the address is NULL, 
                                       // do block
  {
    printf("Can't open file $s\n", fname); // print error to stdout
    return(1);  // return 1 to calling program
  }
  
  while(fgets(ch_string, STRLEN, fp) ) // read string from file handle at fp, until '\0'
                                       // assign to char array ch_string, 
                                       // max of STRLEN elements
                                       // while line is not NULL
  {
    printf("%s", ch_string); // print contents of array ch_string, intrepret as string
  }

  fclose(fp); // close file handle 

  return 0; // return 0 to calling program
}