Convert to and from network byte order in set/get nospam.

Fixes #205.

3 files changed, 12 insertions, 6 deletions

diff --git a/toxcore/tox.api.h b/toxcore/tox.api.h
index 2df57429..e9e3483d 100644
--- a/toxcore/tox.api.h
+++ b/toxcore/tox.api.h
@@ -844,14 +844,17 @@ inline namespace self {
 
   uint32_t nospam {
     /**
-     * Set the 4-byte nospam part of the address.
+     * Set the 4-byte nospam part of the address. This value is expected in host
+     * byte order. I.e. 0x12345678 will form the bytes [12, 34, 56, 78] in the
+     * nospam part of the Tox friend address.
      *
      * @param nospam Any 32 bit unsigned integer.
      */
     set();
 
     /**
-     * Get the 4-byte nospam part of the address.
+     * Get the 4-byte nospam part of the address. This value is returned in host
+     * byte order.
      */
     get();
   }
diff --git a/toxcore/tox.c b/toxcore/tox.c
index 7898868b..c7d90871 100644
--- a/toxcore/tox.c
+++ b/toxcore/tox.c
@@ -479,13 +479,13 @@ void tox_self_get_address(const Tox *tox, uint8_t *address)
 void tox_self_set_nospam(Tox *tox, uint32_t nospam)
 {
     Messenger *m = tox;
-    set_nospam(&(m->fr), nospam);
+    set_nospam(&(m->fr), htonl(nospam));
 }
 
 uint32_t tox_self_get_nospam(const Tox *tox)
 {
     const Messenger *m = tox;
-    return get_nospam(&(m->fr));
+    return ntohl(get_nospam(&(m->fr)));
 }
 
 void tox_self_get_public_key(const Tox *tox, uint8_t *public_key)
diff --git a/toxcore/tox.h b/toxcore/tox.h
index eae37ac2..af25d8fa 100644
--- a/toxcore/tox.h
+++ b/toxcore/tox.h
@@ -979,14 +979,17 @@ void tox_iterate(Tox *tox, void *user_data);
 void tox_self_get_address(const Tox *tox, uint8_t *address);
 
 /**
- * Set the 4-byte nospam part of the address.
+ * Set the 4-byte nospam part of the address. This value is expected in host
+ * byte order. I.e. 0x12345678 will form the bytes [12, 34, 56, 78] in the
+ * nospam part of the Tox friend address.
  *
  * @param nospam Any 32 bit unsigned integer.
  */
 void tox_self_set_nospam(Tox *tox, uint32_t nospam);
 
 /**
- * Get the 4-byte nospam part of the address.
+ * Get the 4-byte nospam part of the address. This value is returned in host
+ * byte order.
  */
 uint32_t tox_self_get_nospam(const Tox *tox);