Add convenience functions to wrap create and init for symmetric ciphers; clean up error handling in onion.c

svn:r131

1 files changed, 3 insertions, 0 deletions

diff --git a/src/or/or.h b/src/or/or.h
index 4afd38d7e..b16b00dd9 100644
--- a/src/or/or.h
+++ b/src/or/or.h
@@ -660,6 +660,9 @@ void remove_tracked_onion(tracked_onion_t *to, tracked_onion_t **tracked_onions,
 /* find a tracked onion in the linked list of tracked onions */
 tracked_onion_t *id_tracked_onion(unsigned char *onion, uint32_t onionlen, tracked_onion_t *tracked_onions);
 
+/* create a cipher by onion cipher type. */
+crypto_cipher_env_t *create_onion_cipher(int cipher_type, char *key, char *iv, int encrypt_mode);
+
 /********************************* routers.c ***************************/
 
 void router_retry_connections(struct sockaddr_in *local);