arch/ppc/boot/of1275/ofstdio.c

   1 /*
   2  * Copyright (C) Paul Mackerras 1997.
   3  * Copyright (C) Leigh Brown 2002.
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License
   7  * as published by the Free Software Foundation; either version
   8  * 2 of the License, or (at your option) any later version.
   9  */
  10
  11 #include "of1275.h"
  12
  13 int
  14 ofstdio(ihandle *stdin, ihandle *stdout, ihandle *stderr)
  15 {
  16     ihandle in, out;
  17     phandle chosen;
  18
  19     if ((chosen = finddevice("/chosen")) == OF_INVALID_HANDLE)
  20         goto err;
  21     if (getprop(chosen, "stdout", &out, sizeof(out)) != 4)
  22         goto err;
  23     if (getprop(chosen, "stdin", &in, sizeof(in)) != 4)
  24         goto err;
  25
  26     *stdin  = in;
  27     *stdout = out;
  28     *stderr = out;
  29     return 0;
  30 err:
  31     return -1;
  32 }