+// Miscellaneous functions
+
+// Copyright (C) 2019 Simon Ruderich
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+package main
+
+import (
+ "bytes"
+ "fmt"
+)
+
+func alignBufferTo(b *bytes.Buffer, align int) {
+ if align <= 0 {
+ panic(fmt.Sprintf("invalid alignment %v", align))
+ }
+
+ l := b.Len()
+ if l%align == 0 {
+ return
+ }
+ for i := 0; i < align-l%align; i++ {
+ b.WriteByte(0)
+ }
+}