Introduction
============


All of these functions take a hash (map), and expect certain keys to
be there. For instance, createDir() expects 'dir' to be a key in the
hash, and it's value is the name of the directory to create.

Note that you can create anonymous hashes quite easily in order to
call these functions:

     CreateDir( { dir => "$twrootdir/temp"} );

Another example is createHardLink(), which expects:

     CreateHardLink( { target => "parent.txt", file => "child.txt" } );


Note that files and directories are _ALWAYS_ created relative to
$twtools::twrootdir.


API
===

CreateDir(%);

        Creates the directory named by the 'dir' key in the passed in
        hash. Note it uses "system("mkdir -p")" to do the work, so it
        will create all intermediate directories as well (the -p).

        Example:

             CreateDir( { dir => "temp"} );
                


MakeBigger(%);

        Expects the key 'file' to name the file make larger. It
        increases the size simply by appending the file name to the
        end of the file. If the key 'dir' exists, it is prepended to
        the file path. 

        Example:

             MakeBigger( { file => "bigger.txt" } );
             MakeBigger( { file => "bigger.txt", dir => "temp" } );

MakeSmaller(%);


        Expects the key 'file' to name the file make smaller. It
        decreases the size simply by echoing nothing into the file,
        i.e. the size is guarenteed to be 0 afterwards. If the key
        'dir' exists, it is prepended to the file path.

        Example:

             MakeSmaller( { file => "smaller.txt" } );
             MakeSmaller( { file => "smaller.txt", dir => "temp"} );

        
RemoveFile(%);


        Expects the key 'file' to name the file to remove. The file is
        removed forcibly ("rm -rf"). If the key 'dir' exists, it is
        prepended to the file path.

        Example:

             RemoveFile( { file => "byebye.txt" } );
             RemoveFile( { file => "byebye.txt", dir => "temp"} );


Chmod(%);

        Expects the key 'file' for the file name, and 'perms' for the
        new permissions. Uses "system("chmod")" to do it's work, not
        the built in perl chmod function. If the key 'dir' exists, it
        is prepended to the file path.

        Example:

              Chmod( { file => "change.txt", perms => "a+r-w" } );
              Chmod( { file => "change.txt", dir => "temp", perms => "a+r-w" } );


CreateHardLink(%);

        Expects the keys 'target' and 'file', and uses "system("ln
        -f")" to do it's work.

        Example:

              CreateHardLink( { target => "parent.txt", file => "child.txt" } );


CreateSymLink(%);

        Expects the keys 'target' and 'file', and uses "system("ln
        -sf")" to do it's work.

        Example:

              CreateSymLink( { target => "parent.txt", file => "child.txt" } );


Access(%);

        Expects the key 'file', and simply "cat's" the file to
        /dev/null so that the last accessed timestamp is updated.  If
        the key 'dir' exists, it is prepended to the file path.

        Example:

               Access( { file => "$twrootdir/readme.txt" } );
               Access( { file => "readme.txt", dir => "temp" } );


CreateTestFile(%);

        Expects the key 'file', and optionally the key 'dir'. If 'dir'
        is not there, it will simply create the file by echoing the
        value of the key 'contents' into into the file. If 'dir' is
        there, it will prepend 'dir' to the name of the file. Note
        that the directory structure indicated by 'dir' must already
        be there.

        Example:

               CreateTestFile( { file => "test.txt", contents => "testing" } );
               CreateTestFile( { file => "test.txt", contents => "testing", dir => "temp" } );

UpdateDatabase(%):

		Executes "tripwire -m u <params>"
		Optional parameters include:
			report      -- name of report file to use
			secure-mode -- specify a string passed with --secure-mode. 
			               Can be "low" or "high"; default is low

RunIntegrityCheck(%):

		Executes "tripwire --check <params>"
		Optional parameters include:
			report -- name of report file to generate
			


CreateDefaultConfig
SignConfigFile                     
InitializeDatabase                 
RunReport                          
AnalyzeReport                      
GenerateKeys
GeneratePolicyFile