reactos/lib/msvcrt/io/dup.c

   1 /* $Id: dup.c,v 1.3 2002/09/07 15:12:30 chorns Exp $ */
   2 #include <msvcrti.h>
   3
   4
   5 int _dup(int handle)
   6 {
   7   HANDLE hFile;
   8   HANDLE hProcess = GetCurrentProcess();
   9   BOOL result;
  10   int fd;
  11
  12   hFile = (HANDLE)_get_osfhandle(handle);
  13   if (hFile == INVALID_HANDLE_VALUE)
  14           return -1;
  15   result = DuplicateHandle(hProcess,
  16                            hFile,
  17                            hProcess,
  18                            &hFile,
  19                            0,
  20                            TRUE,
  21                            DUPLICATE_SAME_ACCESS);
  22   if (result == FALSE)
  23           return -1;
  24
  25   fd = __fileno_alloc(hFile, __fileno_getmode(handle));
  26   if (fd < 0)
  27   {
  28           CloseHandle(hFile);
  29   }
  30   return fd;
  31 }