General utilities cleanup. Add signature support to catcrypt. Throw in

[u/mdw/catacomb] / buf.h

diff --git a/buf.h b/buf.h
index 0131681..a83985c 100644 (file)
--- a/buf.h
+++ b/buf.h
@@ -1,6 +1,6 @@
 /* -*-c-*-
  *
- * $Id: buf.h,v 1.2 2003/11/10 22:18:30 mdw Exp $
+ * $Id: buf.h,v 1.4 2004/04/08 01:36:15 mdw Exp $
  *
  * Reading and writing packet buffers
  *
@@ -27,20 +27,6 @@
  * MA 02111-1307, USA.
  */
 
-/*----- Revision history --------------------------------------------------* 
- *
- * $Log: buf.h,v $
- * Revision 1.2  2003/11/10 22:18:30  mdw
- * Build fixes.
- *
- * 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 CATACOMB_BUF_H
 #define CATACOMB_BUF_H
 
@@ -58,6 +44,10 @@
 #  include "mp.h"
 #endif
 
+#ifndef CATACOMB_EC_H
+#  include "ec.h"
+#endif
+
 /*----- Data structures ---------------------------------------------------*/
 
 /* --- Buffers --- *
@@ -258,6 +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