1 files changed, 68 insertions, 0 deletions
diff --git a/wsutil/buffer.h b/wsutil/buffer.h
new file mode 100644
index 0000000..628d324
--- /dev/null
+++ b/wsutil/buffer.h
@@ -0,0 +1,68 @@
+/** @file
+ *
+ * Wiretap Library
+ * Copyright (c) 1998 by Gilbert Ramirez <gram@alumni.rice.edu>
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#ifndef __W_BUFFER_H__
+#define __W_BUFFER_H__
+
+#include <inttypes.h>
+#include <stddef.h>
+#include "ws_symbol_export.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+#define SOME_FUNCTIONS_ARE_DEFINES
+
+typedef struct Buffer {
+	uint8_t	*data;
+	size_t	allocated;
+	size_t	start;
+	size_t	first_free;
+} Buffer;
+
+WS_DLL_PUBLIC
+void ws_buffer_init(Buffer* buffer, size_t space);
+WS_DLL_PUBLIC
+void ws_buffer_free(Buffer* buffer);
+WS_DLL_PUBLIC
+void ws_buffer_assure_space(Buffer* buffer, size_t space);
+WS_DLL_PUBLIC
+void ws_buffer_append(Buffer* buffer, uint8_t *from, size_t bytes);
+WS_DLL_PUBLIC
+void ws_buffer_remove_start(Buffer* buffer, size_t bytes);
+WS_DLL_PUBLIC
+void ws_buffer_cleanup(void);
+
+#ifdef SOME_FUNCTIONS_ARE_DEFINES
+# define ws_buffer_clean(buffer) ws_buffer_remove_start((buffer), ws_buffer_length(buffer))
+# define ws_buffer_increase_length(buffer,bytes) (buffer)->first_free += (bytes)
+# define ws_buffer_length(buffer) ((buffer)->first_free - (buffer)->start)
+# define ws_buffer_start_ptr(buffer) ((buffer)->data + (buffer)->start)
+# define ws_buffer_end_ptr(buffer) ((buffer)->data + (buffer)->first_free)
+# define ws_buffer_append_buffer(buffer,src_buffer) ws_buffer_append((buffer), ws_buffer_start_ptr(src_buffer), ws_buffer_length(src_buffer))
+#else
+ WS_DLL_PUBLIC
+ void ws_buffer_clean(Buffer* buffer);
+ WS_DLL_PUBLIC
+ void ws_buffer_increase_length(Buffer* buffer, size_t bytes);
+ WS_DLL_PUBLIC
+ size_t ws_buffer_length(Buffer* buffer);
+ WS_DLL_PUBLIC
+ uint8_t* ws_buffer_start_ptr(Buffer* buffer);
+ WS_DLL_PUBLIC
+ uint8_t* ws_buffer_end_ptr(Buffer* buffer);
+ WS_DLL_PUBLIC
+ void ws_buffer_append_buffer(Buffer* buffer, Buffer* src_buffer);
+#endif
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif