Imported Upstream version 5.0.1

1 files changed, 12 insertions, 8 deletions

diff --git a/src/libstrongswan/crypto/crypters/crypter.h b/src/libstrongswan/crypto/crypters/crypter.h
index 3bf039681..fe854f53d 100644
--- a/src/libstrongswan/crypto/crypters/crypter.h
+++ b/src/libstrongswan/crypto/crypters/crypter.h
@@ -90,9 +90,10 @@ struct crypter_t {
 	 * @param data			data to encrypt
 	 * @param iv			initializing vector
 	 * @param encrypted		chunk to allocate encrypted data, or NULL
+	 * @return				TRUE if encryption successful
 	 */
-	void (*encrypt) (crypter_t *this, chunk_t data, chunk_t iv,
-					 chunk_t *encrypted);
+	bool (*encrypt)(crypter_t *this, chunk_t data, chunk_t iv,
+					chunk_t *encrypted) __attribute__((warn_unused_result));
 
 	/**
 	 * Decrypt a chunk of data and allocate space for the decrypted value.
@@ -104,9 +105,10 @@ struct crypter_t {
 	 * @param data			data to decrypt
 	 * @param iv			initializing vector
 	 * @param encrypted		chunk to allocate decrypted data, or NULL
+	 * @return				TRUE if decryption successful
 	 */
-	void (*decrypt) (crypter_t *this, chunk_t data, chunk_t iv,
-					 chunk_t *decrypted);
+	bool (*decrypt)(crypter_t *this, chunk_t data, chunk_t iv,
+					chunk_t *decrypted) __attribute__((warn_unused_result));
 
 	/**
 	 * Get the block size of the crypto algorithm.
@@ -117,7 +119,7 @@ struct crypter_t {
 	 *
 	 * @return				block size in bytes
 	 */
-	size_t (*get_block_size) (crypter_t *this);
+	size_t (*get_block_size)(crypter_t *this);
 
 	/**
 	 * Get the IV size of the crypto algorithm.
@@ -135,7 +137,7 @@ struct crypter_t {
 	 *
 	 * @return				key size in bytes
 	 */
-	size_t (*get_key_size) (crypter_t *this);
+	size_t (*get_key_size)(crypter_t *this);
 
 	/**
 	 * Set the key.
@@ -143,13 +145,15 @@ struct crypter_t {
 	 * The length of the key must match get_key_size().
 	 *
 	 * @param key			key to set
+	 * @return				TRUE if key set successfully
 	 */
-	void (*set_key) (crypter_t *this, chunk_t key);
+	bool (*set_key)(crypter_t *this,
+					chunk_t key) __attribute__((warn_unused_result));
 
 	/**
 	 * Destroys a crypter_t object.
 	 */
-	void (*destroy) (crypter_t *this);
+	void (*destroy)(crypter_t *this);
 };
 
 /**