C Program for Prints file contents on printer

/* Prints file contents on printer */
#include "stdio.h"
main( )
{
FILE  *fp ;
char  ch ;

fp = fopen ( "poem.txt", "r" ) ;

if ( fp == NULL )
{
printf ( "Cannot open file" ) ;
exit( ) ;
}

while ( ( ch = fgetc ( fp ) ) != EOF )
fputc ( ch, stdprn ) ;

fclose ( fp ) ;
}