1 files changed, 9 insertions, 1 deletions
diff --git a/reftable/reftable-basics.h b/reftable/reftable-basics.h
index e0397ed583..6d73f19c85 100644
--- a/reftable/reftable-basics.h
+++ b/reftable/reftable-basics.h
@@ -4,13 +4,21 @@
  * Use of this source code is governed by a BSD-style
  * license that can be found in the LICENSE file or at
  * https://developers.google.com/open-source/licenses/bsd
-*/
+ */
 
 #ifndef REFTABLE_BASICS_H
 #define REFTABLE_BASICS_H
 
 #include <stddef.h>
 
+/* A buffer that contains arbitrary byte slices. */
+struct reftable_buf {
+	size_t alloc;
+	size_t len;
+	char *buf;
+};
+#define REFTABLE_BUF_INIT { 0 }
+
 /*
  * Hash functions understood by the reftable library. Note that the values are
  * arbitrary and somewhat random such that we can easily detect cases where the