/*  Fileput.c  (c) Kari Laitinen

    http://www.naturalprogramming.com/

    2013-11-28  File created.
    2013-11-28  Last modification.

*/

#include  <stdio.h>

int main()
{
   FILE*  output_file ;
   char   file_name_from_user[ 20 ] ;
   char   character_from_keyboard ;

   printf( "\n This program writes text you type in to a"
           "\n text file. Please, give first a file name: " ) ;

   gets( file_name_from_user ) ;

   output_file  =  fopen( file_name_from_user, "w" ) ;

   if ( output_file  ==  0 )
   {
      printf( "\n Cannot open file %s\n", file_name_from_user ) ;
   }
   else
   {
      printf( "\n Please, start typing in text from keyboard."
              "\n Type in Ctrl-Z and Enter to finish. \n\n" ) ;

      character_from_keyboard = getchar() ;
      while( character_from_keyboard != EOF  )
      {
         putc( character_from_keyboard, output_file ) ;
         character_from_keyboard = getchar() ;
      }

      fclose( output_file ) ;
   }
}