Add a return value to prf_t.set_key()

src/libstrongswan/crypto/crypto_tester.c

@@ -843,7 +843,10 @@ METHOD(crypto_tester_t, test_prf, bool,
 		failed = FALSE;
 
 		key = chunk_create(vector->key, vector->key_size);
-		prf->set_key(prf, key);
+		if (!prf->set_key(prf, key))
+		{
+			failed = TRUE;
+		}
 
 		/* allocated bytes */
 		seed = chunk_create(vector->seed, vector->len);
@@ -863,7 +866,10 @@ METHOD(crypto_tester_t, test_prf, bool,
 		memset(out.ptr, 0, out.len);
 		if (vector->stateful)
 		{
-			prf->set_key(prf, key);
+			if (!prf->set_key(prf, key))
+			{
+				failed = TRUE;
+			}
 		}
 		if (!prf->get_bytes(prf, seed, out.ptr))
 		{
@@ -879,7 +885,10 @@ METHOD(crypto_tester_t, test_prf, bool,
 			memset(out.ptr, 0, out.len);
 			if (vector->stateful)
 			{
-				prf->set_key(prf, key);
+				if (!prf->set_key(prf, key))
+				{
+					failed = TRUE;
+				}
 			}
 			if (!prf->allocate_bytes(prf, chunk_create(seed.ptr, 1), NULL) ||
 				!prf->get_bytes(prf, chunk_create(seed.ptr + 1, 1), NULL) ||

src/libstrongswan/crypto/prfs/mac_prf.c

@@ -70,10 +70,11 @@ METHOD(prf_t, get_key_size, size_t,
 	return this->mac->get_mac_size(this->mac);
 }
 
-METHOD(prf_t, set_key, void,
+METHOD(prf_t, set_key, bool,
 	private_prf_t *this, chunk_t key)
 {
 	this->mac->set_key(this->mac, key);
+	return TRUE;
 }
 
 METHOD(prf_t, destroy, void,

src/libstrongswan/crypto/prfs/prf.h

@@ -113,8 +113,10 @@ struct prf_t {
 	 * Set the key for this prf_t object.
 	 *
 	 * @param key		key to set
+	 * @return			TRUE if key set successfully
 	 */
-	void (*set_key) (prf_t *this, chunk_t key);
+	__attribute__((warn_unused_result))
+	bool (*set_key) (prf_t *this, chunk_t key);
 
 	/**
 	 * Destroys a prf object.