Write a program in C that shall copy its standard input to its standard output, character by character. The program shall take no command line parameters and shall report an error and terminate if a command line parameter has been provided. The program shall report every possible I/O error using perror(), and fgetc()and fputc() to handle the characters. Test your program by copying its own text into another file (use I/O redirection). Compare the original and the copy using the "diff" command. The files shall be identical.