workbench/libs/nonvolatile/deletenv.c

   1 /*
   2     Copyright © 1995-2006, The AROS Development Team. All rights reserved.
   3     $Id$
   4 */
   5
   6 #ifndef  DEBUG
   7 #define  DEBUG  1
   8 #endif
   9
  10 #include <aros/debug.h>
  11
  12 #include <dos/dosextens.h>
  13 #include <proto/nvdisk.h>
  14
  15 #include <string.h>
  16
  17 #include LC_LIBDEFS_FILE
  18
  19 /*****************************************************************************
  20
  21     NAME */
  22 #include <libraries/nonvolatile.h>
  23
  24         AROS_LH3(BOOL, DeleteNV,
  25
  26 /*  SYNOPSIS */
  27
  28         AROS_LHA(STRPTR, appName,  A0),
  29         AROS_LHA(STRPTR, itemName, A1),
  30         AROS_LHA(BOOL,   killRequesters, D1),
  31
  32 /*  LOCATION */
  33
  34         struct Library *, nvBase, 8, Nonvolatile)
  35
  36 /*  FUNCTION
  37
  38     Delete a piece of data in the nonvolatile storage.
  39
  40     INPUTS
  41
  42     appName         --  the application owning the data to be deleted; maximum
  43                         length 31
  44     itemName        --  name of the data to be deleted; maximum length 31
  45     killRequesters  --  if set to TRUE no system requesters will be displayed
  46                         during the deletion operation; if set to FALSE, system
  47                         requesters will be allowed to be displayed
  48
  49     RESULT
  50
  51     Success / failure indicator.
  52
  53     NOTES
  54
  55     The 'appName' and 'itemName' strings may NOT include the characters
  56     '/' or ':'.
  57
  58     EXAMPLE
  59
  60     BUGS
  61
  62     SEE ALSO
  63
  64     INTERNALS
  65
  66 ******************************************************************************/
  67
  68 {
  69     AROS_LIBFUNC_INIT
  70
  71     struct Process *me = (struct Process *)FindTask(NULL);
  72     APTR oldReq = me->pr_WindowPtr;
  73     BOOL result;
  74
  75     D(bug("Entering DeleteNV()\n"));
  76
  77     if(appName == NULL || itemName == NULL)
  78         return FALSE;
  79
  80     if(strpbrk(appName, ":/") != NULL ||
  81        strpbrk(itemName, ":/") != NULL)
  82         return FALSE;
  83
  84     if(killRequesters)
  85         me->pr_WindowPtr = (APTR)-1;
  86
  87     D(bug("Calling DeleteData()\n"));
  88
  89     result = DeleteNVDData(appName, itemName);
  90
  91     if(killRequesters)
  92         me->pr_WindowPtr = oldReq;
  93
  94     return result;
  95
  96     AROS_LIBFUNC_EXIT
  97 } /* DeleteNV */