- rewrote the file code so that streams manage low level file desc

(the code was written the other way around)
- reworked the flag handling code (now the stream._flag is closer to
  what MS does)
- simplified temp files handling by using FILE_FLAG_DELETE_ON_CLOSE in
  CreateFile
- fixed a couple of bugs

dlls/msvcrt/data.c

@@ -24,6 +24,7 @@
 #include <math.h>
 #include "msvcrt.h"
 
+#include "msvcrt/fcntl.h"
 #include "msvcrt/stdlib.h"
 #include "msvcrt/string.h"
 
@@ -285,7 +286,8 @@ void msvcrt_init_args(void)
   MSVCRT___setlc_active = 0;
   MSVCRT___unguarded_readlc_active = 0;
   MSVCRT_timezone = 0;
-
+  MSVCRT__fmode = _O_TEXT;
+  
   MSVCRT___initenv= msvcrt_SnapshotOfEnvironmentA(NULL);
   MSVCRT___winitenv= msvcrt_SnapshotOfEnvironmentW(NULL);
 

include/msvcrt/stdio.h

@@ -32,7 +32,6 @@
 #define _IOERR           0x0020
 #define _IOSTRG          0x0040
 #define _IORW            0x0080
-#define _IOAPPEND        0x0200
 #else
 #define MSVCRT__IOREAD   0x0001
 #define MSVCRT__IOWRT    0x0002
@@ -41,7 +40,6 @@
 #define MSVCRT__IOERR    0x0020
 #define MSVCRT__IOSTRG   0x0040
 #define MSVCRT__IORW     0x0080
-#define MSVCRT__IOAPPEND 0x0200
 #endif /* USE_MSVCRT_PREFIX */
 
 #ifndef NULL