Check if a configuration file exists before feeding it to the XML parser.

diff --git a/src/configuration.cpp b/src/configuration.cpp
index c4cce46..76e0338 100644 (file)
--- a/src/configuration.cpp
+++ b/src/configuration.cpp
@@ -6,7 +6,7 @@
 ***********************
 **      FILE NAME      : configuration.cpp
 **      SYSTEM NAME    : AXE - Andromeda X-windows Encapsulation
-**      VERSION NUMBER : $Revision: 1.3 $
+**      VERSION NUMBER : $Revision: 1.4 $
 **
 **  DESCRIPTION      :  Implementation of configuration class
 **
@@ -18,13 +18,16 @@
 ********************************
 **      ORIGINAL AUTHOR : Arjen Baart - arjen@andromeda.nl
 **      CREATION DATE   : Jul 23, 2002
-**      LAST UPDATE     : Nov 02, 2002
+**      LAST UPDATE     : Nov 22, 2002
 **      MODIFICATIONS   : 
 **************************************************************************/
 
 /*****************************
    $Log: configuration.cpp,v $
-   Revision 1.3  2002-11-02 14:35:15  arjen
+   Revision 1.4  2002-11-23 12:48:18  arjen
+   Check if a configuration file exists before feeding it to the XML parser.
+
+   Revision 1.3  2002/11/02 14:35:15  arjen
    Uses the XML2 library
    BugFix: segfault when finding a parameters that is not in the user-sepcific
    config tree.
@@ -38,8 +41,10 @@
 
 *****************************/
 
-static const char *RCSID = "$Id: configuration.cpp,v 1.3 2002-11-02 14:35:15 arjen Exp $";
+static const char *RCSID = "$Id: configuration.cpp,v 1.4 2002-11-23 12:48:18 arjen Exp $";
 
+#include <fcntl.h>
+#include <unistd.h>
 #include "configuration.h"
 
 /*=========================================================================
@@ -54,7 +59,7 @@ static const char *RCSID = "$Id: configuration.cpp,v 1.3 2002-11-02 14:35:15 arj
 **  VARS CHANGED   :
 **  FUNCTIONS USED :
 **  SEE ALSO       :
-**  LAST MODIFIED  : Jul 24, 2002
+**  LAST MODIFIED  : Nov 22, 2002
 **=========================================================================
 */
 
@@ -67,18 +72,30 @@ bool configuration::read(const String name)
    //   Try to read the config files.
  
    filename = "/etc/" + name + ".conf";
-   system = xmlParseFile(filename);
+   //  Check if we can read the file.
 
-   if (system == NULL)
+   int fd = open(filename, O_RDONLY);
+   if (fd < 0)
    {
       filename = "/usr/local/etc/" + name + ".conf";
+      fd = open(filename, O_RDONLY);
+   }
+
+   if (fd > 0)
+   {
+      close(fd);
       system = xmlParseFile(filename);
    }
 
    filename = getenv("HOME");
    filename += "/.";
    filename += name + ".conf";
-   user = xmlParseFile(filename);
+   fd = open(filename, O_RDONLY);
+   if (fd > 0)
+   {
+      close(fd);
+      user = xmlParseFile(filename);
+   }
 
    //  Check the root element, which must be the application name