Imported Upstream version 4.6.4

1 files changed, 139 insertions, 0 deletions

diff --git a/src/libstrongswan/bio/bio_reader.h b/src/libstrongswan/bio/bio_reader.h
new file mode 100644
index 000000000..85434a784
--- /dev/null
+++ b/src/libstrongswan/bio/bio_reader.h
@@ -0,0 +1,139 @@
+/*
+ * Copyright (C) 2010 Martin Willi
+ * Copyright (C) 2010 revosec AG
+ *
+ * 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; either version 2 of the License, or (at your
+ * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * 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.
+ */
+
+/**
+ * @defgroup bio_reader bio_reader
+ * @{ @ingroup bio
+ */
+
+#ifndef BIO_READER_H_
+#define BIO_READER_H_
+
+typedef struct bio_reader_t bio_reader_t;
+
+#include <library.h>
+
+/**
+ * Buffered input parser.
+ */
+struct bio_reader_t {
+
+	/**
+	 * Get the number of remaining bytes.
+	 *
+	 * @return			number of remaining bytes in buffer
+	 */
+	u_int32_t (*remaining)(bio_reader_t *this);
+
+	/**
+	 * Peek the remaining data, not consuming any bytes.
+	 *
+	 * @return			remaining data
+	 */
+	chunk_t (*peek)(bio_reader_t *this);
+
+	/**
+	 * Read a 8-bit integer from the buffer, advance.
+	 *
+	 * @param res		pointer to result
+	 * @return			TRUE if integer read successfully
+	 */
+	bool (*read_uint8)(bio_reader_t *this, u_int8_t *res);
+
+	/**
+	 * Read a 16-bit integer from the buffer, advance.
+	 *
+	 * @param res		pointer to result
+	 * @return			TRUE if integer read successfully
+	 */
+	bool (*read_uint16)(bio_reader_t *this, u_int16_t *res);
+
+	/**
+	 * Read a 24-bit integer from the buffer, advance.
+	 *
+	 * @param res		pointer to result
+	 * @return			TRUE if integer read successfully
+	 */
+	bool (*read_uint24)(bio_reader_t *this, u_int32_t *res);
+
+	/**
+	 * Read a 32-bit integer from the buffer, advance.
+	 *
+	 * @param res		pointer to result
+	 * @return			TRUE if integer read successfully
+	 */
+	bool (*read_uint32)(bio_reader_t *this, u_int32_t *res);
+
+	/**
+	 * Read a 64-bit integer from the buffer, advance.
+	 *
+	 * @param res		pointer to result
+	 * @return			TRUE if integer read successfully
+	 */
+	bool (*read_uint64)(bio_reader_t *this, u_int64_t *res);
+
+	/**
+	 * Read a chunk of len bytes, advance.
+	 *
+	 * @param len		number of bytes to read
+	 * @param res		pointer to result, not cloned
+	 * @return			TRUE if data read successfully
+	 */
+	bool (*read_data)(bio_reader_t *this, u_int32_t len, chunk_t *res);
+
+	/**
+	 * Read a chunk of bytes with a 8-bit length header, advance.
+	 *
+	 * @param res		pointer to result, not cloned
+	 * @return			TRUE if data read successfully
+	 */
+	bool (*read_data8)(bio_reader_t *this, chunk_t *res);
+
+	/**
+	 * Read a chunk of bytes with a 16-bit length header, advance.
+	 *
+	 * @param res		pointer to result, not cloned
+	 * @return			TRUE if data read successfully
+	 */
+	bool (*read_data16)(bio_reader_t *this, chunk_t *res);
+
+	/**
+	 * Read a chunk of bytes with a 24-bit length header, advance.
+	 *
+	 * @param res		pointer to result, not cloned
+	 * @return			TRUE if data read successfully
+	 */
+	bool (*read_data24)(bio_reader_t *this, chunk_t *res);
+
+	/**
+	 * Read a chunk of bytes with a 32-bit length header, advance.
+	 *
+	 * @param res		pointer to result, not cloned
+	 * @return			TRUE if data read successfully
+	 */
+	bool (*read_data32)(bio_reader_t *this, chunk_t *res);
+
+	/**
+	 * Destroy a bio_reader_t.
+	 */
+	void (*destroy)(bio_reader_t *this);
+};
+
+/**
+ * Create a bio_reader instance.
+ */
+bio_reader_t *bio_reader_create(chunk_t data);
+
+#endif /** bio_reader_H_ @}*/