reactos/lib/msvcrt/io/pipe.c

   1 /* $Id: pipe.c,v 1.3 2002/09/07 15:12:32 chorns Exp $
   2  *
   3  * COPYRIGHT:   See COPYING in the top level directory
   4  * PROJECT:     ReactOS system libraries
   5  * FILE:        lib/crtdll/io/pipe.c
   6  * PURPOSE:     Creates a pipe
   7  * PROGRAMER:   DJ Delorie
   8  * UPDATE HISTORY:
   9  *              28/12/98: Appropriated for Reactos
  10  */
  11 #include <msvcrti.h>
  12
  13
  14 int _pipe(int _fildes[2], unsigned int size, int mode )
  15 {
  16   HANDLE hReadPipe, hWritePipe;
  17   SECURITY_ATTRIBUTES sa = {sizeof(SECURITY_ATTRIBUTES), NULL, TRUE};
  18
  19   if (mode & O_NOINHERIT)
  20     sa.bInheritHandle = FALSE;
  21
  22   if (!CreatePipe(&hReadPipe,&hWritePipe,&sa,size))
  23     return -1;
  24
  25   if ((_fildes[0] = __fileno_alloc(hReadPipe, mode)) < 0)
  26   {
  27     CloseHandle(hReadPipe);
  28     CloseHandle(hWritePipe);
  29     __set_errno(EMFILE);
  30     return -1;
  31   }
  32
  33   if ((_fildes[1] = __fileno_alloc(hWritePipe, mode)) < 0)
  34   {
  35     __fileno_close(_fildes[0]);
  36     CloseHandle(hReadPipe);
  37     CloseHandle(hWritePipe);
  38     __set_errno(EMFILE);
  39     return -1;
  40   }
  41   return 0;
  42 }