1 files changed, 12 insertions, 0 deletions
diff --git a/src/lib/istream-hash.h b/src/lib/istream-hash.h
new file mode 100644
index 0000000..bd22201
--- /dev/null
+++ b/src/lib/istream-hash.h
@@ -0,0 +1,12 @@
+#ifndef ISTREAM_HASH_H
+#define ISTREAM_HASH_H
+
+struct hash_method;
+
+/* hash_context must be allocated and initialized by caller. This istream will
+   simply call method->loop() for all the data going through the istream. */
+struct istream *
+i_stream_create_hash(struct istream *input, const struct hash_method *method,
+		     void *hash_context);
+
+#endif