X-Git-Url: https://git.distorted.org.uk/u/mdw/catacomb/blobdiff_plain/6b80b6c48a47fd4f9f8329e2e56a228fa3e2c7f4..c65df27983057ec76ed0e72bb370f9a5ae7dad28:/buf.h

diff --git a/buf.h b/buf.h
index ae5d993..a83985c 100644
--- a/buf.h
+++ b/buf.h
@@ -1,8 +1,9 @@
 /* -*-c-*-
  *
- * $Id: buf.h,v 1.1 2003/10/11 21:02:33 mdw Exp $
+ * $Id: buf.h,v 1.4 2004/04/08 01:36:15 mdw Exp $
+ *
+ * Reading and writing packet buffers
  *
- * [Reading and writing packet buffers *
  * (c) 2001 Straylight/Edgeware
  */
 
@@ -26,19 +27,8 @@
  * MA 02111-1307, USA.
  */
 
-/*----- Revision history --------------------------------------------------* 
- *
- * $Log: buf.h,v $
- * Revision 1.1  2003/10/11 21:02:33  mdw
- * Import buf stuff from tripe.
- *
- * Revision 1.1  2001/06/19 22:09:54  mdw
- * Expose interface, for use in the proxy.
- *
- */
-
-#ifndef BUF_H
-#define BUF_H
+#ifndef CATACOMB_BUF_H
+#define CATACOMB_BUF_H
 
 #ifdef __cplusplus
   extern "C" {
@@ -50,7 +40,13 @@
 
 #include <mLib/bits.h>
 
-#include <catacomb/mp.h>
+#ifndef CATACOMB_MP_H
+#  include "mp.h"
+#endif
+
+#ifndef CATACOMB_EC_H
+#  include "ec.h"
+#endif
 
 /*----- Data structures ---------------------------------------------------*/
 
@@ -252,6 +248,31 @@ extern mp *buf_getmp(buf */*b*/);
 
 extern int buf_putmp(buf */*b*/, mp */*m*/);
 
+/* --- @buf_getec@ --- *
+ *
+ * Arguments:	@buf *b@ = pointer to a buffer block
+ *		@ec *p@ = where to put the point
+ *
+ * Returns:	Zero if it worked, nonzero if it failed.
+ *
+ * Use:		Gets a multiprecision integer from a buffer.  The point must
+ *		be initialized.
+ */
+
+extern int buf_getec(buf */*b*/, ec */*p*/);
+
+/* --- @buf_putec@ --- *
+ *
+ * Arguments:	@buf *b@ = pointer to a buffer block
+ *		@ec *p@ = an elliptic curve point
+ *
+ * Returns:	Zero if it worked, nonzero if there wasn't enough space.
+ *
+ * Use:		Puts an elliptic curve point to a buffer.
+ */
+
+extern int buf_putec(buf */*b*/, ec */*p*/);
+
 /*----- That's all, folks -------------------------------------------------*/
 
 #ifdef __cplusplus