1 files changed, 37 insertions, 0 deletions
diff --git a/slirp2/sbuf.h b/slirp2/sbuf.h
new file mode 100644
index 0000000..05fa01a
--- /dev/null
+++ b/slirp2/sbuf.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 1995 Danny Gasparovski.
+ * 
+ * Please read the file COPYRIGHT for the 
+ * terms and conditions of the copyright.
+ */
+
+#ifndef _SBUF_H_
+#define _SBUF_H_
+
+#include "mbuf.h"
+#include <stddef.h>
+
+/* a SBuf is a simple circular buffer used to hold RX and TX data in a struct socket
+ */
+
+typedef struct sbuf {
+	unsigned  sb_cc;      /* actual chars in buffer */
+	unsigned  sb_datalen; /* Length of data  */
+	char*     sb_wptr;    /* write pointer. points to where the next
+			                                       * bytes should be written in the sbuf */
+	char*     sb_rptr;    /* read pointer. points to where the next
+                                                                       * byte should be read from the sbuf */
+	char*     sb_data;	/* Actual data */
+} SBufRec, *SBuf;
+
+void sbuf_free    (SBuf  sb);
+void sbuf_drop    (SBuf  sb, int  num);
+void sbuf_reserve (SBuf  sb, int  count);
+void sbuf_append  (struct socket *so, MBuf  m);
+void sbuf_appendsb(SBuf  sb, MBuf  m);
+void sbuf_copy    (SBuf  sb, int  offset, int  length, char *to);
+
+#define sbuf_flush(sb) sbuf_drop((sb),(sb)->sb_cc)
+#define sbuf_space(sb) ((sb)->sb_datalen - (sb)->sb_cc)
+
+#endif