commit - 4a735b997384098182ff11ac0c93cb0b0a794984
commit + 357efc9b89710a1ed6f4544aae54ff9761c57971
blob - 258bb9db5be5d0996d84148bf4f038769cea4a55
blob + af1bae59f74297fdd1b70187b06f561e5c000f61
--- botnow
+++ botnow
@@ -7,7 +7,15 @@ use IO::Socket;
 use IO::Select;
 use OpenBSD::Pledge;
 use OpenBSD::Unveil;
+use File::Copy qw(copy);
 
+# Returns date in YYYYMMDD format
+sub date {
+	my ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = localtime();
+	my $localtime = sprintf("%04d%02d%02d", $year+1900, $mon+1, $mday);
+	return $localtime;
+}
+
 # Read from filename and return array of lines without trailing newlines
 sub readarray {
 	my ($filename) = @_;
@@ -29,6 +37,8 @@ sub readstr {
 # Write str to filename
 sub writefile {
 	my ($filename, $str) = @_;
+	my $date = date();
+	copy($filename, $filename.date()) or die "Could not make backup of $filename";
 	open(my $fh, '>', "$filename") or die "Could not write to $filename";
 	print $fh $str;
 	close $fh;
@@ -51,13 +61,6 @@ sub gettime {
 	return $localtime;
 }
 
-# Returns date in YYYYMMDD format
-sub date {
-	my ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = localtime();
-	my $localtime = sprintf("%04d%02d%02d", $year+1900, $mon+1, $mday);
-	return $localtime;
-}
-
 sub mail {
 	my( $from, $to, $fromname, $subject, $body )=@_;
 my $msg = <<"EOF";