compiler/clib/__filesystem_support.c

   1 /*
   2     Copyright © 2009, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc: dos support functions for internal use
   6 */
   7
   8 #include <aros/debug.h>
   9
  10 #include <dos/filesystem.h>
  11 #include <proto/dos.h>
  12
  13 #include "__filesystem_support.h"
  14
  15 CONST_STRPTR StripVolume(CONST_STRPTR name) {
  16     const char *path = strchr(name, ':');
  17     if (path != NULL)
  18         path++;
  19     else
  20         path = name;
  21     return path;
  22 }
  23
  24 #ifndef AROS_DOS_PACKETS
  25
  26 void InitIOFS(struct IOFileSys *iofs, ULONG type,
  27               struct DosLibrary *DOSBase)
  28 {
  29     struct Process *me = (struct Process *)FindTask(NULL);
  30
  31     iofs->IOFS.io_Message.mn_Node.ln_Type = NT_REPLYMSG;
  32     iofs->IOFS.io_Message.mn_ReplyPort    = &me->pr_MsgPort;
  33     iofs->IOFS.io_Message.mn_Length       = sizeof(struct IOFileSys);
  34     iofs->IOFS.io_Command                 = type;
  35     iofs->IOFS.io_Flags                   = 0;
  36 }
  37
  38 LONG DoIOFS(struct IOFileSys *iofs, struct DevProc *dvp, CONST_STRPTR name,
  39     struct DosLibrary *DOSBase) {
  40     BOOL freedvp = FALSE;
  41
  42     if (dvp == NULL) {
  43         if ((dvp = GetDeviceProc(name, NULL)) == NULL)
  44             return IoErr();
  45
  46         freedvp = TRUE;
  47     }
  48
  49     iofs->IOFS.io_Device = (struct Device *) dvp->dvp_Port;
  50
  51     if (dvp->dvp_Lock != BNULL)
  52         iofs->IOFS.io_Unit = ((struct FileHandle *) BADDR(dvp->dvp_Lock))->fh_Unit;
  53     else
  54         iofs->IOFS.io_Unit = dvp->dvp_DevNode->dol_Ext.dol_AROS.dol_Unit;
  55
  56     if (name != NULL)
  57         iofs->io_Union.io_NamedFile.io_Filename = StripVolume(name);
  58
  59     DoIO((struct IORequest *)iofs);
  60
  61     if (freedvp)
  62         FreeDeviceProc(dvp);
  63
  64     SetIoErr(iofs->io_DosError);
  65
  66     return iofs->io_DosError;
  67 }
  68
  69 #endif