correct regenhash

algorithm/gostcoin.c

@@ -1,16 +1,23 @@
 #include "config.h"
 #include "miner.h"
+#include "sph/sph_gost.h"
 
 #include <stdlib.h>
 #include <stdint.h>
 #include <string.h>
 
-int gostcoin_test(unsigned char *pdata, const unsigned char *ptarget, uint32_t nonce)
-{
-	return 0; // TODO
-}
-
 void gostcoin_regenhash(struct work *work)
 {
-	// TODO:
+	 uint32_t data[20];
+     uint32_t *nonce = (uint32_t *)(work->data + 76);
+
+     be32enc_vect(data, (const uint32_t *)work->data, 19);
+     data[19] = htobe32(*nonce);
+
+     unsigned char h1[64], h2[32];
+	 sph_gost512(h1, (const void*)data, 80);
+	 sph_gost256(h2, (const void*)h1, 64);
+	 
+	 int i;	
+	 for (i = 0 ; i < 32; i++) work->hash[i] = h2[31-i];
 }

algorithm/gostcoin.h

@@ -3,8 +3,6 @@
 
 #include "miner.h"
 
-extern int gostcoin_test(unsigned char *pdata, const unsigned char *ptarget,
-			uint32_t nonce);
 extern void gostcoin_regenhash(struct work *work);
 
 #endif /* SIBCOIN_H */