wire: add ripemd marshal/unmarshal routines.

This is for htlc stubs.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

wire/fromwire.c

@@ -165,6 +165,11 @@ void fromwire_preimage(const u8 **cursor, size_t *max, struct preimage *preimage
 	fromwire(cursor, max, preimage, sizeof(*preimage));
 }
 
+void fromwire_ripemd160(const u8 **cursor, size_t *max, struct ripemd160 *ripemd)
+{
+	fromwire(cursor, max, ripemd, sizeof(*ripemd));
+}
+
 void fromwire_ipaddr(const u8 **cursor, size_t *max, struct ipaddr *addr)
 {
 	/* Skip any eventual padding */

wire/towire.c

@@ -2,6 +2,7 @@
 #include "wire.h"
 #include <bitcoin/preimage.h>
 #include <bitcoin/shadouble.h>
+#include <ccan/crypto/ripemd160/ripemd160.h>
 #include <ccan/endian/endian.h>
 #include <ccan/mem/mem.h>
 #include <ccan/tal/tal.h>
@@ -109,6 +110,11 @@ void towire_preimage(u8 **pptr, const struct preimage *preimage)
 	towire(pptr, preimage, sizeof(*preimage));
 }
 
+void towire_ripemd160(u8 **pptr, const struct ripemd160 *ripemd)
+{
+	towire(pptr, ripemd, sizeof(*ripemd));
+}
+
 void towire_ipaddr(u8 **pptr, const struct ipaddr *addr)
 {
 	towire_u8(pptr, addr->type);

wire/wire.h

@@ -34,6 +34,7 @@ struct ipaddr {
 };
 
 struct preimage;
+struct ripemd160;
 
 void derive_channel_id(struct channel_id *channel_id,
 		       struct sha256_double *txid, u16 txout);
@@ -54,6 +55,7 @@ void towire_short_channel_id(u8 **pptr,
 void towire_sha256(u8 **pptr, const struct sha256 *sha256);
 void towire_sha256_double(u8 **pptr, const struct sha256_double *sha256d);
 void towire_preimage(u8 **pptr, const struct preimage *preimage);
+void towire_ripemd160(u8 **pptr, const struct ripemd160 *ripemd);
 void towire_ipaddr(u8 **pptr, const struct ipaddr *addr);
 void towire_u8(u8 **pptr, u8 v);
 void towire_u16(u8 **pptr, u16 v);
@@ -83,6 +85,7 @@ void fromwire_sha256(const u8 **cursor, size_t *max, struct sha256 *sha256);
 void fromwire_sha256_double(const u8 **cursor, size_t *max,
 			    struct sha256_double *sha256d);
 void fromwire_preimage(const u8 **cursor, size_t *max, struct preimage *preimage);
+void fromwire_ripemd160(const u8 **cursor, size_t *max, struct ripemd160 *ripemd);
 void fromwire_ipaddr(const u8 **cursor, size_t *max, struct ipaddr *addr);
 void fromwire_pad(const u8 **cursor, size_t *max, size_t num);