Fix symbol collisions with blake2b (#145)

src/argon2_core.c

@@ -307,13 +307,13 @@ void rxa2_fill_first_blocks(uint8_t *blockhash, const argon2_instance_t *instanc
 
 		store32(blockhash + ARGON2_PREHASH_DIGEST_LENGTH, 0);
 		store32(blockhash + ARGON2_PREHASH_DIGEST_LENGTH + 4, l);
-		rxa2_blake2b_long(blockhash_bytes, ARGON2_BLOCK_SIZE, blockhash,
+		blake2b_long(blockhash_bytes, ARGON2_BLOCK_SIZE, blockhash,
 			ARGON2_PREHASH_SEED_LENGTH);
 		load_block(&instance->memory[l * instance->lane_length + 0],
 			blockhash_bytes);
 
 		store32(blockhash + ARGON2_PREHASH_DIGEST_LENGTH, 1);
-		rxa2_blake2b_long(blockhash_bytes, ARGON2_BLOCK_SIZE, blockhash,
+		blake2b_long(blockhash_bytes, ARGON2_BLOCK_SIZE, blockhash,
 			ARGON2_PREHASH_SEED_LENGTH);
 		load_block(&instance->memory[l * instance->lane_length + 1],
 			blockhash_bytes);

src/blake2/blake2.h

@@ -84,6 +84,15 @@ extern "C" {
 		1 / !!(sizeof(blake2b_param) == sizeof(uint64_t) * CHAR_BIT)
 	};
 
+	//randomx namespace
+#define blake2b_init        randomx_blake2b_init
+#define blake2b_init_key    randomx_blake2b_init_key
+#define blake2b_init_param  randomx_blake2b_init_param
+#define blake2b_update      randomx_blake2b_update
+#define blake2b_final       randomx_blake2b_final
+#define blake2b             randomx_blake2b
+#define blake2b_long        randomx_blake2b_long
+
 	/* Streaming API */
 	int blake2b_init(blake2b_state *S, size_t outlen);
 	int blake2b_init_key(blake2b_state *S, size_t outlen, const void *key,
@@ -97,7 +106,7 @@ extern "C" {
 		const void *key, size_t keylen);
 
 	/* Argon2 Team - Begin Code */
-	int rxa2_blake2b_long(void *out, size_t outlen, const void *in, size_t inlen);
+	int blake2b_long(void *out, size_t outlen, const void *in, size_t inlen);
 	/* Argon2 Team - End Code */
 
 #if defined(__cplusplus)

src/blake2/blake2b.c

@@ -347,7 +347,7 @@ fail:
 }
 
 /* Argon2 Team - Begin Code */
-int rxa2_blake2b_long(void *pout, size_t outlen, const void *in, size_t inlen) {
+int blake2b_long(void *pout, size_t outlen, const void *in, size_t inlen) {
 	uint8_t *out = (uint8_t *)pout;
 	blake2b_state blake_state;
 	uint8_t outlen_bytes[sizeof(uint32_t)] = { 0 };