File list (Check if you may need any files):
io
..\buffer
..\......\full_buffer_size.c
..\......\linebuffer.c
..\......\setbuf_non.c
..\......\setbuf_self.c
..\......\setvbuf_non.c
..\......\setvbuf_stdout.c
..\filecopy
..\........\filecpy_fgetc.c
..\........\filecpy_fgets.c
..\........\filecpy_fread.c
..\........\filecpy_getc.c
..\........\filecpy_read.c
..\function
..\........\access.c
..\........\chmod.c
..\........\chown.c
..\........\close.c
..\........\close_stdin.c
..\........\creat.c
..\........\error.c
..\........\fdopen.c
..\........\feof.c
..\........\fgetc.c
..\........\fgetpos.c
..\........\fileno.c
..\........\filetype_fstat.c
..\........\filetype_lstat1.c
..\........\filetype_lstat2.c
..\........\filetype_stat.c
..\........\fopen.c
..\........\fputs.c
..\........\fread.c
..\........\freopen.c
..\........\freopen_example.c
..\........\fseek.c
..\........\fwrite.c
..\........\getc.c
..\........\infor_lstat1.c
..\........\infor_lstat2.c
..\........\lseek.c
..\........\mode_lstat1.c
..\........\mode_lstat2.c
..\........\open_size.c
..\........\puts.c
..\........\read.c
..\........\readdir.c
..\........\umask.c
..\show_time.c