cde/programs/dtpdmd/setup.c

   1 /*
   2  * CDE - Common Desktop Environment
   3  *
   4  * Copyright (c) 1993-2012, The Open Group. All rights reserved.
   5  *
   6  * These libraries and programs are free software; you can
   7  * redistribute them and/or modify them under the terms of the GNU
   8  * Lesser General Public License as published by the Free Software
   9  * Foundation; either version 2 of the License, or (at your option)
  10  * any later version.
  11  *
  12  * These libraries and programs are distributed in the hope that
  13  * they will be useful, but WITHOUT ANY WARRANTY; without even the
  14  * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  15  * PURPOSE. See the GNU Lesser General Public License for more
  16  * details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with these libraries and programs; if not, write
  20  * to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
  21  * Floor, Boston, MA 02110-1301 USA
  22  */
  23
  24 /******************************************************************************
  25  ******************************************************************************
  26  **
  27  ** File:         setup.c
  28  ** RCS:          $TOG: setup.c /main/4 1997/06/18 17:33:23 samborn $
  29  **
  30  ** Description:
  31  **
  32  ** (c) Copyright 1995, Hewlett-Packard Company, all rights reserved.
  33  **
  34  ******************************************************************************
  35  *****************************************************************************/
  36
  37 #define SETUP_DOT_C
  38
  39 #include "dtpdmdP.h"
  40
  41
  42 /*********************************************************************
  43  *
  44  * Setup PDM_MANAGER selection and TYPE atoms
  45  */
  46 Bool _PdmMgrSetup( Display *sel_display, Window sel_window, Bool security_flag )
  47 {
  48     enum { XA_PDM_START, XA_PDM_REPLY, XA_TARGETS, XA_TIMESTAMP,
  49            XA_MULTIPLE, XA_PDM_START_OK, XA_PDM_START_VXAUTH,
  50            XA_PDM_START_PXAUTH, XA_PDM_START_ERROR, XA_PDM_EXIT_OK,
  51            XA_PDM_EXIT_CANCEL, XA_PDM_EXIT_VXAUTH, XA_PDM_EXIT_PXAUTH,
  52            XA_PDM_EXIT_ERROR, XA_PDM_MBOX, XA_PDM_MAIL, NUM_ATOMS };
  53     static char *atom_names[] = {
  54            "PDM_START", "PDM_REPLY", "TARGETS", "TIMESTAMP",
  55            "MULTIPLE", "PDM_START_OK", "PDM_START_VXAUTH",
  56            "PDM_START_PXAUTH", "PDM_START_ERROR", "PDM_EXIT_OK",
  57            "PDM_EXIT_CANCEL", "PDM_EXIT_VXAUTH", "PDM_EXIT_PXAUTH",
  58            "PDM_EXIT_ERROR", "PDM_MBOX", "PDM_MAIL" };
  59
  60     int i;
  61     Atom atoms[XtNumber(atom_names)];
  62
  63     /*
  64      * Create PDM_MANAGER atoms.
  65      */
  66     XInternAtoms( sel_display, atom_names, XtNumber(atom_names), False, atoms );
  67
  68     g.pdm_selection = XInternAtom( sel_display, g.alt_selection, False );
  69     g.pdm_start     = atoms[XA_PDM_START];
  70     g.pdm_reply     = atoms[XA_PDM_REPLY];
  71     g.pdm_targets   = atoms[XA_TARGETS];
  72     g.pdm_timestamp = atoms[XA_TIMESTAMP];
  73     g.pdm_multiple  = atoms[XA_MULTIPLE];
  74
  75     g.pdm_start_ok      = atoms[XA_PDM_START_OK];
  76     g.pdm_start_vxauth  = atoms[XA_PDM_START_VXAUTH];
  77     g.pdm_start_pxauth  = atoms[XA_PDM_START_PXAUTH];
  78     g.pdm_start_error   = atoms[XA_PDM_START_ERROR];
  79
  80     g.pdm_exit_ok      = atoms[XA_PDM_EXIT_OK];
  81     g.pdm_exit_cancel  = atoms[XA_PDM_EXIT_CANCEL];
  82     g.pdm_exit_vxauth  = atoms[XA_PDM_EXIT_VXAUTH];
  83     g.pdm_exit_pxauth  = atoms[XA_PDM_EXIT_PXAUTH];
  84     g.pdm_exit_error   = atoms[XA_PDM_EXIT_ERROR];
  85
  86     if (security_flag){
  87         g.pdm_mbox = atoms[XA_PDM_MBOX];
  88         g.pdm_mail = atoms[XA_PDM_MAIL];
  89     }
  90     else {
  91         g.pdm_mbox = (Atom) 0;
  92         g.pdm_mail = (Atom) 0;
  93     }
  94
  95     if ( XGetSelectionOwner(sel_display, g.pdm_selection) != None ) {
  96         /*
  97          * Someone else already owns the selection.
  98          */
  99         return( /* cannot become owner */ False );
 100     }
 101     else {
 102         /*
 103          * Claim ownership of the selection.
 104          */
 105         i=0;
 106         while ((XGetSelectionOwner(sel_display, g.pdm_selection)!=sel_window)) {
 107             if ( i++ > 100 )
 108                 return( /* cannot become owner */ False );
 109
 110             XSetSelectionOwner( sel_display, g.pdm_selection, sel_window,
 111                                 CurrentTime );
 112         }
 113     }
 114     return( /* became owner */ True );
 115 }
 116