copy_file
copy_file(char *from, char *to)
copy_file(register FILE *f)
copy_file(FILE *f, FILE *out)
copy_file(FILE *fp, FILE *tfp, int start, int finish)
copy_file(int ofd, char *fname, Tmp_File *temp_file)
copy_file(FILE *fp, FILE *tfp, int start, int finish)