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Diffstat (limited to 'winsup/mingw/mingwex/mingw-fseek.c')
-rw-r--r--winsup/mingw/mingwex/mingw-fseek.c119
1 files changed, 0 insertions, 119 deletions
diff --git a/winsup/mingw/mingwex/mingw-fseek.c b/winsup/mingw/mingwex/mingw-fseek.c
deleted file mode 100644
index 6a3b66119..000000000
--- a/winsup/mingw/mingwex/mingw-fseek.c
+++ /dev/null
@@ -1,119 +0,0 @@
-/*
- * Workaround for limitations on win9x where a file contents are
- * not zero'd out if you seek past the end and then write.
- * Copied from ming local-patch to binutils/bfd/libbfd.c written by
- * Mumit Khan <khan@xraylith.wisc.edu>
- */
-
-#include <windows.h>
-#include <stdio.h>
-#include <io.h>
-
-#ifdef __GNUC__
-# define INLINE __inline__
-#elif defined _MSC_VER
-# define INLINE __inline
-#else
-# define INLINE
-#endif
-
-#define ZEROBLOCKSIZE 512
-static int __mingw_fseek_called;
-
-/* FIXME: put this in startup code and make os_platform_id global?
- Or just get _osver from msvcrt.dll and bitest (_osver & 0x8000)? */
-
-INLINE
-static
-int
-__mingw_is_win9x (void)
-{
- static DWORD os_platform_id = -1 ;
-
- if (os_platform_id == -1)
- {
- OSVERSIONINFO os_version_info;
- memset (&os_version_info, 0, sizeof (OSVERSIONINFO));
- os_version_info.dwOSVersionInfoSize = sizeof (OSVERSIONINFO);
- GetVersionEx (&os_version_info);
-
- os_platform_id = os_version_info.dwPlatformId;
- }
-
- /* Don't even bother to check for Win32s. */
- return os_platform_id == VER_PLATFORM_WIN32_WINDOWS;
-}
-
-/* The fseek in Win9x runtime does not zero out the file if seeking past
- the end; if you don't want random stuff from your disk included in your
- output DLL/executable, use this version instead. On WinNT/Win2k, it
- just calls runtime fseek().
-
- CHECK/FIXME: Does this work for both text and binary modes?? */
-
-
-int
-__mingw_fseek (FILE *fp, long offset, int whence)
-{
-# undef fseek
- __mingw_fseek_called = 1;
- return fseek (fp, offset, whence);
-}
-
-int
-__mingw_fwrite (const void *buffer, size_t size, size_t count, FILE *fp)
-{
-# undef fwrite
- if ( __mingw_is_win9x () && __mingw_fseek_called)
- {
- DWORD actual_length, current_position;
- __mingw_fseek_called = 0;
- fflush (fp);
- actual_length = GetFileSize ((HANDLE) _get_osfhandle (fileno (fp)),
- NULL);
- current_position = SetFilePointer ((HANDLE) _get_osfhandle (fileno (fp)),
- 0, 0, FILE_CURRENT);
-#ifdef DEBUG
- printf ("__mingw_fwrite: current %ld, actual %ld\n",
- current_position, actual_length);
-#endif /* DEBUG */
- if (current_position > actual_length)
- {
- static char __mingw_zeros[ZEROBLOCKSIZE];
- long numleft;
-
- SetFilePointer ((HANDLE) _get_osfhandle (fileno (fp)),
- 0, 0, FILE_END);
- numleft = current_position - actual_length;
-
-#ifdef DEBUG
- printf ("__mingw_fwrite: Seeking %ld bytes past end\n", numleft);
-#endif /* DEBUG */
- while (numleft > 0)
- {
- DWORD nzeros = (numleft > ZEROBLOCKSIZE)
- ? ZEROBLOCKSIZE : numleft;
- DWORD written;
- if (! WriteFile ((HANDLE) _get_osfhandle (fileno (fp)),
- __mingw_zeros, nzeros, &written, NULL))
- {
- /* Best we can hope for, or at least DJ says so. */
- SetFilePointer ((HANDLE) _get_osfhandle (fileno (fp)),
- 0, 0, FILE_BEGIN);
- return -1;
- }
- if (written < nzeros)
- {
- /* Likewise. */
- SetFilePointer ((HANDLE) _get_osfhandle (fileno (fp)),
- 0, 0, FILE_BEGIN);
- return -1;
- }
-
- numleft -= written;
- }
- FlushFileBuffers ((HANDLE) _get_osfhandle (fileno (fp)));
- }
- }
- return fwrite (buffer, size, count, fp);
-}