From: Stefan Schantl <stefan.schantl@ipfire.org>
Date: Fri, 24 Aug 2018 05:37:10 +0000 (+0200)
Subject: ids-functions.pl: Add function to create empty files
X-Git-Tag: v2.23-core131~117^2~172
X-Git-Url: http://git.ipfire.org/?p=ipfire-2.x.git;a=commitdiff_plain;h=308ba5e74c27e50e9fda4278749256d3ff541d5e

ids-functions.pl: Add function to create empty files

This generic function can be used to create any kind of emtpy files -
it just requires the full path and filename to work.

If the specified file exists at calltime, the function will abort
to prevent from overwriting existing files and content.

Signed-off-by: Stefan Schantl <stefan.schantl@ipfire.org>
---

diff --git a/config/cfgroot/ids-functions.pl b/config/cfgroot/ids-functions.pl
index cb16e1b493..6f7f3ee7ef 100644
--- a/config/cfgroot/ids-functions.pl
+++ b/config/cfgroot/ids-functions.pl
@@ -355,4 +355,26 @@ sub call_suricatactrl ($) {
 	return;
 }
 
+#
+## Function to create a new empty file.
+#
+sub create_empty_file($) {
+	my ($file) = @_;
+
+	# Check if the given file exists.
+	if(-e $file) {
+		# Do nothing to prevent from overwriting existing files.
+		return;
+	}
+
+	# Open the file for writing.
+	open(FILE, ">$file") or die "Could not write to $file. $!\n";
+
+	# Close file handle.
+	close(FILE);
+
+	# Return true.
+	return 1;
+}
+
 1;