1 files changed, 55 insertions, 0 deletions
diff --git a/include/xfrm/wrap.h b/include/xfrm/wrap.h
new file mode 100644
index 0000000..48ae112
--- /dev/null
+++ b/include/xfrm/wrap.h
@@ -0,0 +1,55 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * wrap.h
+ *
+ * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
+ */
+#ifndef XFRM_WRAP_H
+#define XFRM_WRAP_H
+
+#include "sqfs/predef.h"
+#include "xfrm/stream.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @brief Create an input stream that transparently decodes data.
+ *
+ * @memberof sqfs_istream_t
+ *
+ * This function creates an input stream that wraps an underlying input stream
+ * that is encoded/compressed and transparently decodes the data when reading
+ * from it.
+ *
+ * @param strm A pointer to another stream that should be wrapped.
+ * @param xfrm The transformation stream to use.
+ *
+ * @return A pointer to an input stream on success, NULL on failure.
+ */
+SQFS_INTERNAL sqfs_istream_t *istream_xfrm_create(sqfs_istream_t *strm,
+						  xfrm_stream_t *xfrm);
+
+/**
+ * @brief Create an output stream that transparently encodes data.
+ *
+ * @memberof sqfs_ostream_t
+ *
+ * This function creates an output stream that transparently encodes
+ * (e.g. compresses) all data appended to it and writes it to an
+ * underlying, wrapped output stream.
+ *
+ * @param strm A pointer to another stream that should be wrapped.
+ * @param xfrm The transformation stream to use.
+ *
+ * @return A pointer to an output stream on success, NULL on failure.
+ */
+SQFS_INTERNAL sqfs_ostream_t *ostream_xfrm_create(sqfs_ostream_t *strm,
+						  xfrm_stream_t *xfrm);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* XFRM_WRAP_H */