+# in_array()
+#
+# Check if a value is in an array
+#
+# Params: 1. Value to find
+# 2. Array
+#
+# Return: Status code (Boolean)
+
+sub in_array($$)
+{
+ my ($string,$array) = @_;
+
+ foreach my $element(@{$array})
+ {
+ return 1 if($string eq $element);
+ }
+
+ #foreach
+
+ return;
+}
+
+# is_disabled_command()
+#
+# Check if a command is disabled
+#
+# Params: 1. Array Reference containing the list
+# 2. Command to check
+#
+# Return: Status code (Boolean)
+
+sub is_disabled_command($$)
+{
+ my ($list,$command) = @_;
+ $command =~ s!/+$!!g;
+
+ foreach my $entry(@$list)
+ {
+ return 1 if(uc($command) eq uc($entry));
+ }
+
+ return;
+}
+
+# is_forbidden_file()
+#
+# Check if a file is in the list of forbidden files
+#
+# Params: 1. Array Reference containing the list
+# 2. Filename to check
+#
+# Return: Status code (Boolean)
+
+sub is_forbidden_file($$)
+{
+ my ($list,$file) = @_;
+ $file =~ s!/+$!!g;
+
+ foreach my $entry(@$list)
+ {
+ return 1 if($file eq $entry);
+ return 1 if(index($file,$entry.'/') == 0);
+ }
+
+ return;
+}
+
+# mode_string()
+#
+# Convert a file mode number into a human readable string (rwxr-x-r-x)
+# (also supports SetUID, SetGID and Sticky Bit)
+#
+# Params: File mode number
+#
+# Return: Human readable mode string
+
+sub mode_string($)
+{
+ my $mode = shift;
+ my $string = '';
+
+ # User
+
+ $string = ($mode & 00400) ? 'r' : '-';
+ $string .= ($mode & 00200) ? 'w' : '-';
+ $string .= ($mode & 00100) ? (($mode & 04000) ? 's' : 'x') :
+ ($mode & 04000) ? 'S' : '-';
+
+ # Group
+
+ $string .= ($mode & 00040) ? 'r' : '-';
+ $string .= ($mode & 00020) ? 'w' : '-';
+ $string .= ($mode & 00010) ? (($mode & 02000) ? 's' : 'x') :
+ ($mode & 02000) ? 'S' : '-';
+
+ # Other
+
+ $string .= ($mode & 00004) ? 'r' : '-';
+ $string .= ($mode & 00002) ? 'w' : '-';
+ $string .= ($mode & 00001) ? (($mode & 01000) ? 't' : 'x') :
+ ($mode & 01000) ? 'T' : '-';
+
+ return $string;
+}
+
+# multi_string()
+#
+# Create a Hash Reference containing three forms of a string
+#
+# Params: String
+#
+# Return: Hash Reference:
+# normal => Normal form of the string
+# html => HTML encoded form (see encode_html())
+# url => URL encoded form
+
+sub multi_string($)
+{
+ my $string = shift;
+ my %multi;
+
+ $multi{'normal'} = $string;
+ $multi{'html'} = encode_html($string);
+ $multi{'url'} = escape($string);
+
+ return \%multi;
+}
+