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- /* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
- #include <libc/stubs.h>
- #include <unistd.h>
- #include <dpmi.h>
- #include <errno.h>
- #include <libc/dosio.h>
-
- int
- fsync(int _fd)
- {
- int oerrno = errno;
- __dpmi_regs r;
- r.h.ah = 0x68;
- r.x.bx = _fd;
- __dpmi_int(0x21, &r);
- if ((r.x.flags & 1) && (r.x.ax != 1) && (r.x.ax != 6))
- {
- errno = __doserr_to_errno(r.x.ax);
- return -1;
- }
- errno = oerrno;
- return 0;
- }
-