Removed the 'gnutls_' prefix from files to simplify file naming

1 files changed, 143 insertions, 0 deletions

diff --git a/lib/mbuffers.h b/lib/mbuffers.h
new file mode 100644
index 0000000000..4c68b55f98
--- /dev/null
+++ b/lib/mbuffers.h
@@ -0,0 +1,143 @@
+/*
+ * Copyright (C) 2009-2012 Free Software Foundation, Inc.
+ *
+ * Author: Jonathan Bastien-Filiatrault
+ *
+ * This file is part of GNUTLS.
+ *
+ * The GNUTLS library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ *
+ */
+
+#ifndef GNUTLS_MBUFFERS_H
+#define GNUTLS_MBUFFERS_H
+
+#include "gnutls_int.h"
+#include "errors.h"
+
+void _mbuffer_head_init(mbuffer_head_st * buf);
+void _mbuffer_head_clear(mbuffer_head_st * buf);
+void _mbuffer_enqueue(mbuffer_head_st * buf, mbuffer_st * bufel);
+mbuffer_st *_mbuffer_dequeue(mbuffer_head_st * buf, mbuffer_st * bufel);
+int _mbuffer_head_remove_bytes(mbuffer_head_st * buf, size_t bytes);
+mbuffer_st *_mbuffer_alloc(size_t maximum_size);
+int _mbuffer_linearize(mbuffer_head_st * buf);
+
+mbuffer_st *_mbuffer_head_get_first(mbuffer_head_st * buf,
+				    gnutls_datum_t * msg);
+mbuffer_st *_mbuffer_head_get_next(mbuffer_st * cur, gnutls_datum_t * msg);
+
+mbuffer_st *_mbuffer_head_pop_first(mbuffer_head_st * buf);
+
+/* This is dangerous since it will replace bufel with a new
+ * one.
+ */
+int _mbuffer_append_data(mbuffer_st * bufel, void *newdata,
+			 size_t newdata_size);
+
+
+/* For "user" use. One can have buffer data and header.
+ */
+
+inline static void *_mbuffer_get_uhead_ptr(mbuffer_st * bufel)
+{
+	return bufel->msg.data + bufel->mark;
+}
+
+inline static void *_mbuffer_get_udata_ptr(mbuffer_st * bufel)
+{
+	return bufel->msg.data + bufel->uhead_mark + bufel->mark;
+}
+
+inline static void _mbuffer_set_udata_size(mbuffer_st * bufel, size_t size)
+{
+	bufel->msg.size = size + bufel->uhead_mark + bufel->mark;
+}
+
+inline static void
+_mbuffer_set_udata(mbuffer_st * bufel, void *data, size_t data_size)
+{
+	memcpy(_mbuffer_get_udata_ptr(bufel), data,
+	       data_size);
+	_mbuffer_set_udata_size(bufel, data_size);
+}
+
+inline static size_t _mbuffer_get_udata_size(mbuffer_st * bufel)
+{
+	return bufel->msg.size - bufel->uhead_mark - bufel->mark;
+}
+
+/* discards size bytes from the begging of the buffer */
+inline static void
+_mbuffer_consume(mbuffer_head_st * buf, mbuffer_st * bufel, size_t size)
+{
+	bufel->uhead_mark = 0;
+	if (bufel->mark + size < bufel->msg.size)
+		bufel->mark += size;
+	else
+		bufel->mark = bufel->msg.size;
+
+	buf->byte_length -= size;
+}
+
+inline static size_t _mbuffer_get_uhead_size(mbuffer_st * bufel)
+{
+	return bufel->uhead_mark;
+}
+
+inline static void _mbuffer_set_uhead_size(mbuffer_st * bufel, size_t size)
+{
+	bufel->uhead_mark = size;
+}
+
+
+
+inline static mbuffer_st *_gnutls_handshake_alloc(gnutls_session_t session,
+						  size_t maximum)
+{
+	mbuffer_st *bufel =
+	    _mbuffer_alloc(HANDSHAKE_HEADER_SIZE(session) + maximum);
+
+	if (!bufel)
+		return NULL;
+
+	_mbuffer_set_uhead_size(bufel, HANDSHAKE_HEADER_SIZE(session));
+	_mbuffer_set_udata_size(bufel, maximum);
+
+	return bufel;
+}
+
+/* Free a segment, if the pointer is not NULL
+ *
+ * We take a ** to detect and fix double free bugs (the dangling
+ * pointer case). It also makes sure the pointer has a known value
+ * after freeing.
+ */
+inline static void _mbuffer_xfree(mbuffer_st ** bufel)
+{
+	if (*bufel)
+		gnutls_free(*bufel);
+
+	*bufel = NULL;
+}
+
+#ifdef ENABLE_ALIGN16
+mbuffer_st *_mbuffer_alloc_align16(size_t maximum_size, unsigned align_pos);
+int _mbuffer_linearize_align16(mbuffer_head_st * buf, unsigned align_pos);
+#else
+# define _mbuffer_alloc_align16(x,y) _mbuffer_alloc(x)
+# define _mbuffer_linearize_align16(x,y) _mbuffer_linearize(x)
+#endif
+
+#endif