amiga-ixemul/library/utimes.c

/*
 *  This file is part of ixemul.library for the Amiga.
 *  Copyright (C) 1991, 1992  Markus M. Wild
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Library General Public
 *  License as published by the Free Software Foundation; either
 *  version 2 of the License, or (at your option) any later version.
 *
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Library General Public License for more details.
 *
 *  You should have received a copy of the GNU Library General Public
 *  License along with this library; if not, write to the Free
 *  Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 *  $Id: utimes.c,v 1.1.1.1 2005/03/15 15:57:08 laire Exp $
 */

#define _KERNEL
#include "ixemul.h"
#include "kprintf.h"

#if 0

  static int
__utimes_func (struct lockinfo *info, struct DateStamp *ds, int *error)
{
  struct StandardPacket *sp = &info->sp;

  sp->sp_Pkt.dp_Type = ACTION_SET_DATE;
  sp->sp_Pkt.dp_Arg1 = 0;
  sp->sp_Pkt.dp_Arg2 = info->parent_lock;
  sp->sp_Pkt.dp_Arg3 = info->bstr;
  sp->sp_Pkt.dp_Arg4 = (long)ds;

  PutPacket (info->handler, sp);
  __wait_sync_packet (sp);

  info->result = sp->sp_Pkt.dp_Res1;

  *error = info->result != -1;

  /* we want to set the date of the file pointed to, not that of the link */
  return 1;
}


int
utimes(char *name, struct timeval *tvp)
{
  struct DateStamp *ds;
  struct timeval tv;
  int result;
  usetup;

  if (!tvp)
    /* in this case, fill in the current time */
    syscall(SYS_gettimeofday, &tv, 0);
  else
    /* we have to ignore the value of "accesstime" and only
     * look at "modificationtime", that's tvp[1] */
    tv = tvp[1];

  tv.tv_sec -= ix_get_gmt_offset();
  /* long-alignment here could be overkill, but with DOS you never know.. */
  ds = alloca (sizeof (struct DateStamp) + 2);
  ds = LONG_ALIGN (ds);

  ds->ds_Days   = tv.tv_sec / (24 * 60 * 60);
  /* subtract UNIX/AmigaOS time offset */
  ds->ds_Days  -= OFFSET_FROM_1970;
  tv.tv_sec    %= 24 * 60 * 60;
  ds->ds_Minute = tv.tv_sec / 60;
  tv.tv_sec    %= 60;
  ds->ds_Tick   = (tv.tv_sec * TICKS_PER_SECOND +
		   (tv.tv_usec * TICKS_PER_SECOND)/1000000);

  result = __plock (name, __utimes_func, ds);

  if (! result) errno = __ioerr_to_errno (IoErr ());
  KPRINTF (("&errno = %lx, errno = %ld\n", &errno, errno));

  return result ? 0 : -1;
}

#else

char *ix_to_ados(char *, const char *);
char *check_root(char *);

int
utimes(char *name, struct timeval *tvp)
{
  struct DateStamp ds;
  struct timeval tv;
  int result;
  usetup;
  int omask;
  char *buf = alloca(strlen(name) + 4);
  LONG err;

  if (!tvp)
    /* in this case, fill in the current time */
    syscall(SYS_gettimeofday, &tv, 0);
  else
    /* we have to ignore the value of "accesstime" and only
     * look at "modificationtime", that's tvp[1] */
    tv = tvp[1];

  tv.tv_sec -= ix_get_gmt_offset();

  ds.ds_Days   = tv.tv_sec / (24 * 60 * 60);
  /* subtract UNIX/AmigaOS time offset */
  ds.ds_Days  -= OFFSET_FROM_1970;
  tv.tv_sec    %= 24 * 60 * 60;
  ds.ds_Minute = tv.tv_sec / 60;
  tv.tv_sec    %= 60;
  ds.ds_Tick   = (tv.tv_sec * TICKS_PER_SECOND +
		   (tv.tv_usec * TICKS_PER_SECOND)/1000000);

  buf = ix_to_ados(buf, name);

  omask = syscall (SYS_sigsetmask, ~0);

  result = SetFileDate(buf, &ds);

  if (! result)
    {
      err = IoErr();
      if (err == ERROR_OBJECT_NOT_FOUND)
      {
	buf = check_root(buf);
	if (buf && *buf)
	  {
	    result = SetFileDate(buf, &ds);
	    if (result)
	      err = 0;
	  }
	SetIoErr(err);
      }
    }

  syscall (SYS_sigsetmask, omask);

  if (! result) errno = __ioerr_to_errno (err);
  KPRINTF (("&errno = %lx, errno = %ld\n", &errno, errno));

  return result ? 0 : -1;
}

#endif