From 000692fca0990bb49d4961c8fbe3e9c582a38248 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marc=20Sch=C3=BCtz?= <schuetzm@gmx.net>
Date: Mon, 30 Jun 2014 21:46:34 +0200
Subject: [PATCH] Const-correctness for TCP_client.c

---
 toxcore/TCP_client.c | 8 ++++----
 toxcore/TCP_client.h | 6 +++---
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/toxcore/TCP_client.c b/toxcore/TCP_client.c
index 0b9bc74e..97ad43fe 100644
--- a/toxcore/TCP_client.c
+++ b/toxcore/TCP_client.c
@@ -90,7 +90,7 @@ static int generate_handshake(TCP_Client_Connection *TCP_conn, const uint8_t *se
  * return 0 on success.
  * return -1 on failure.
  */
-static int handle_handshake(TCP_Client_Connection *TCP_conn, uint8_t *data)
+static int handle_handshake(TCP_Client_Connection *TCP_conn, const uint8_t *data)
 {
     uint8_t plain[crypto_box_PUBLICKEYBYTES + crypto_box_NONCEBYTES];
     int len = decrypt_data_symmetric(TCP_conn->shared_key, data, data + crypto_box_NONCEBYTES,
@@ -318,7 +318,7 @@ int send_disconnect_request(TCP_Client_Connection *con, uint8_t con_id)
  * return 0 if could not send packet.
  * return -1 on failure (connection must be killed).
  */
-int send_onion_request(TCP_Client_Connection *con, uint8_t *data, uint16_t length)
+int send_onion_request(TCP_Client_Connection *con, const uint8_t *data, uint16_t length)
 {
     uint8_t packet[1 + length];
     packet[0] = TCP_PACKET_ONION_REQUEST;
@@ -326,7 +326,7 @@ int send_onion_request(TCP_Client_Connection *con, uint8_t *data, uint16_t lengt
     return write_packet_TCP_secure_connection(con, packet, sizeof(packet));
 }
 
-void onion_response_handler(TCP_Client_Connection *con, int (*onion_callback)(void *object, uint8_t *data,
+void onion_response_handler(TCP_Client_Connection *con, int (*onion_callback)(void *object, const uint8_t *data,
                             uint16_t length), void *object)
 {
     con->onion_callback = onion_callback;
@@ -388,7 +388,7 @@ TCP_Client_Connection *new_TCP_connection(IP_Port ip_port, const uint8_t *public
 /* return 0 on success
  * return -1 on failure
  */
-static int handle_TCP_packet(TCP_Client_Connection *conn, uint8_t *data, uint16_t length)
+static int handle_TCP_packet(TCP_Client_Connection *conn, const uint8_t *data, uint16_t length)
 {
     if (length <= 1)
         return -1;
diff --git a/toxcore/TCP_client.h b/toxcore/TCP_client.h
index 82487ab4..2622b4f7 100644
--- a/toxcore/TCP_client.h
+++ b/toxcore/TCP_client.h
@@ -73,7 +73,7 @@ typedef struct  {
     int (*oob_data_callback)(void *object, const uint8_t *public_key, const uint8_t *data, uint16_t length);
     void *oob_data_callback_object;
 
-    int (*onion_callback)(void *object, uint8_t *data, uint16_t length);
+    int (*onion_callback)(void *object, const uint8_t *data, uint16_t length);
     void *onion_callback_object;
 } TCP_Client_Connection;
 
@@ -94,8 +94,8 @@ void kill_TCP_connection(TCP_Client_Connection *TCP_connection);
  * return 0 if could not send packet.
  * return -1 on failure (connection must be killed).
  */
-int send_onion_request(TCP_Client_Connection *con, uint8_t *data, uint16_t length);
-void onion_response_handler(TCP_Client_Connection *con, int (*onion_callback)(void *object, uint8_t *data,
+int send_onion_request(TCP_Client_Connection *con, const uint8_t *data, uint16_t length);
+void onion_response_handler(TCP_Client_Connection *con, int (*onion_callback)(void *object, const uint8_t *data,
                             uint16_t length), void *object);
 
 /* return 1 on success.