Start of "Simple Peer-To-Peer Security" protocol.

[tinc] / src / openssl / cipher.c

diff --git a/src/openssl/cipher.c b/src/openssl/cipher.c
index 86a1aca..743449a 100644 (file)
--- a/src/openssl/cipher.c
+++ b/src/openssl/cipher.c
@@ -101,13 +101,13 @@ bool cipher_encrypt(cipher_t *cipher, const void *indata, size_t inlen, void *ou
                if(EVP_EncryptInit_ex(&cipher->ctx, NULL, NULL, NULL, NULL)
                                && EVP_EncryptUpdate(&cipher->ctx, (unsigned char *)outdata, &len, indata, inlen)
                                && EVP_EncryptFinal(&cipher->ctx, (unsigned char *)outdata + len, &pad)) {
-                       *outlen = len + pad;
+                       if(outlen) *outlen = len + pad;
                        return true;
                }
        } else {
                int len;
                if(EVP_EncryptUpdate(&cipher->ctx, outdata, &len, indata, inlen)) {
-                       *outlen = len;
+                       if(outlen) *outlen = len;
                        return true;
                }
        }
@@ -122,13 +122,13 @@ bool cipher_decrypt(cipher_t *cipher, const void *indata, size_t inlen, void *ou
                if(EVP_DecryptInit_ex(&cipher->ctx, NULL, NULL, NULL, NULL)
                                && EVP_DecryptUpdate(&cipher->ctx, (unsigned char *)outdata, &len, indata, inlen)
                                && EVP_DecryptFinal(&cipher->ctx, (unsigned char *)outdata + len, &pad)) {
-                       *outlen = len + pad;
+                       if(outlen) *outlen = len + pad;
                        return true;
                }
        } else {
                int len;
                if(EVP_EncryptUpdate(&cipher->ctx, outdata, &len, indata, inlen)) {
-                       *outlen = len;
+                       if(outlen) *outlen = len;
                        return true;
                }
        }