Fix a nasty bug in the decryption code.

This was a typo but it led to various types of memory corruption; after
decrypting the returned string was marked as being larger than it should
have been--also meaning that the last bytes in the buffer were off in
unallocated space.

diff --git a/bluesky/crypto.c b/bluesky/crypto.c
index adf7d03..4490e8c 100644 (file)
--- a/bluesky/crypto.c
+++ b/bluesky/crypto.c
@@ -137,5 +137,5 @@ BlueSkyRCStr *bluesky_crypt_decrypt(BlueSkyRCStr *in, const uint8_t *key)
 
     gcry_cipher_close(handle);
 
-    return bluesky_string_new(out, in->len + CRYPTO_BLOCK_SIZE);
+    return bluesky_string_new(out, in->len - CRYPTO_BLOCK_SIZE);
 }