/* @(#)getdev.c	17.1.1.1 (ES0-DMD) 01/25/02 17:44:47 */
/*===========================================================================
  Copyright (C) 1995 European Southern Observatory (ESO)
 
  This program is free software; you can redistribute it and/or 
  modify it under the terms of the GNU General Public License as 
  published by the Free Software Foundation; either version 2 of 
  the License, or (at your option) any later version.
 
  This program 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 General Public License for more details.
 
  You should have received a copy of the GNU General Public 
  License along with this program; if not, write to the Free 
  Software Foundation, Inc., 675 Massachusetts Ave, Cambridge, 
  MA 02139, USA.
 
  Correspondence concerning ESO-MIDAS should be addressed as follows:
	Internet e-mail: midas@eso.org
	Postal address: European Southern Observatory
			Data Management Division 
			Karl-Schwarzschild-Strasse 2
			D 85748 Garching bei Muenchen 
			GERMANY
===========================================================================*/

/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
.COPYRIGHT   (c) 1993 European Southern Observatory
.IDENTifer   GETDEV.C
.AUTHOR      R.M. van Hees IPG-ESO Garching
.KEYWORDS    
.LANGUAGE    C
.PURPOSE     get logical device name for current graphics window
             on both workstations and terminals
     input:  char *kname    type of device
    output:  char *lname    logical name of device
.RETURNS     
.COMMENTS    The lenght of the file AGL3CONFIG:agldevs.dat, also 
             defines the number of supported graphics devices. 
             This number should consist with the number of devices 
             declared in the file pltdev.inc
.ENVIRONment MIDAS
             #include <osparms.h>       Symbols used by the OS interfaces
             #include <midas_def.h>     Prototypes for MIDAS interfaces
             #include <plot_def.h>      Symbols used by the PLT interfaces


.VERSION     2.0     11-Jun-1993   FORTRAN --> ANSI-C    RvH

 010423		last modif

------------------------------------------------------------*/
/*
 * Define _POSIX_SOURCE to indicate
 * that this is a POSIX program
 */
#define  _POSIX_SOURCE 1

/*
 * definition of the used functions
 */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include <midas_def.h>

/*
 * define some macros and constants
 */
#include <osparms.h>
#include <plot_def.h>

#undef	MAXLEN
#define MAXLEN		80		    /* maximum length of device name */

#undef  FATAL
#define FATAL           1                              /* error status FATAL */

/*
 * here starts the code of the function
 */

int GETDEV( kname, lname )
char *kname, *lname;

{
int  fid, found;
char *devnam, *strtest;   

char *pldev = "AGL3CONFIG:agldevs.dat",
    *err_flopn = "*** FATAL: GETDEV, Cannot open file with device definitions";
/*
 * initialisation
 */
devnam = malloc((unsigned int)84);

(void) strtok( kname, " ");                    /* get rid of trailing blanks */
CGN_LOWSTR( kname );

/*read from AGLDEVS.dat*/
if ( (fid = CGN_OPEN( pldev, READ )) == -1 ) SCETER( 1, err_flopn );

/* keyword conversion or user input conversion*/
if ( strncmp( kname+1, "_", 1 ) == 0 )
   strtest = kname+2;                                      /*full device name*/
else
   strtest = kname;                                      /*normal device name*/

found = FALSE;
while ( ! found && ( osaread( fid, devnam, MAXLEN )) >= 0 )
      { if ( ! (*devnam == '#') ) 
           { if ( ! strncmp( devnam, "unknown", 7 ) )
                { (void) strcpy( lname, "unknown" );
                  found = TRUE;
                }
             else
                { (void) strtok( devnam, ":");
                  if ( strcmp( strtest, devnam ) == 0 )
                     { (void) strcpy( lname, strtest );
                       found = TRUE;
                     }
                }
           }
      }
(void) free( (char *) devnam );
(void) osaclose( fid );

if ( found == FALSE )
   {
   SCTPUT( "*** FATAL: GETDEV, Cannot find device definition" );
   return FATAL;
   }
else
   return ERR_NORMAL;
}