1 files changed, 34 insertions, 0 deletions
diff --git a/src/commonlib/include/commonlib/compression.h b/src/commonlib/include/commonlib/compression.h
new file mode 100644
index 0000000000..428ee42e65
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+++ b/src/commonlib/include/commonlib/compression.h
@@ -0,0 +1,34 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2016 Google Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * 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 General Public License for more details.
+ */
+
+#ifndef _COMMONLIB_COMPRESSION_H_
+#define _COMMONLIB_COMPRESSION_H_
+
+#include <stddef.h>
+
+/* Decompresses an LZ4F image (multiple LZ4 blocks with frame header) from src
+ * to dst, ensuring that it doesn't read more than srcn bytes and doesn't write
+ * more than dstn. Buffer sizes must stay below 2GB. Can decompress files loaded
+ * to the end of a buffer in-place, as long as buffer is larger than the final
+ * output size. (Usually just a few bytes, but may be up to (8 + dstn/255) in
+ * worst case. Will reliably return an error if buffer was too small.)
+ * Returns amount of decompressed bytes, or 0 on error.
+ */
+size_t ulz4fn(const void *src, size_t srcn, void *dst, size_t dstn);
+
+/* Same as ulz4fn() but does not perform any bounds checks. */
+size_t ulz4f(const void *src, void *dst);
+
+#endif	/* _COMMONLIB_COMPRESSION_H_ */