From: koehler@encompasserve.org
Sent: Tuesday, July 23, 2002 3:15 PM
To: Info-VAX@Mvb.Saic.Com
Subject: better porting library/Mozilla jacket


   If you're using the VMS C porting library (Mozilla does), here's an
   edit you can make to improve the listing of "/".  It shows the disk
   names by logical name instead of by device name.  The format of the
   change is as input to edit/slp.  The change is to opendir_jacket.c.

   If you're using Mozilla, you can use this by downloading the porting
   library, building the vms_jackets.exe shareable image, and replacing 
   the one which shipped with Mozilla (Mozilla kit calls it
   sys$common:[mozilla]vms_jackets.so).

opendir_jacket.upd:
-  316
<// rdk -start changes
      	    	int item2 = DVI$_LOGVOLNAM;
    	    	struct dsc$descriptor_s lognam;
      	    	unsigned short namlen;
      	    	#define LOG_MAX 64  	// cf: System Services Reference
    	    	char lognam_buf[LOG_MAX+1];

    	    	lognam.dsc$b_dtype=DSC$K_DTYPE_T;
    	    	lognam.dsc$b_class=DSC$K_CLASS_S;
    	    	lognam.dsc$w_length=LOG_MAX;
    	    	lognam.dsc$a_pointer=lognam_buf;
      	    	/* try to get the logical volume name (logical name used
      	    	 * in the MOUNT command */
      	    	rv=lib$getdvi(&item2,0,&devnam,NULL,&lognam,&namlen);

-  322,  322

      	    	/* use logical name if we got one */
      	    	if ($VMS_STATUS_SUCCESS(rv) && (namlen != 0))
      	    	{
      	    	  pin = lognam_buf;
                  retlen = namlen;
      	    	}
      	    	else
                  pin = devnam_buf;
<// rdk -end changes
/