Adds signaling to demo

Adds simple HTTP/1.0 signaling to demo. Demo long-polls demo server
(demo.liburtc.org) for an offer and posts an answer. Similarily,
long-polls and posts candidates.

1 files changed, 6 insertions, 6 deletions

diff --git a/src/urtc.h b/src/urtc.h
index 7760ca8..eae4e6b 100644
--- a/src/urtc.h
+++ b/src/urtc.h
@@ -151,12 +151,12 @@ int urtc_add_ice_candidate(urtc_peerconn_t *pc, const char *cand);
  * Akin to `createAnswer` method of `RTCPeerConnection` in WebRTC JS API.
  *
  * \param pc Peer connection
- * \param answer Pointer to string pointer pointing to generated answer.
- *               Memory internally managed (caller need not and must not free).
+ * \param answer Destination pointer for generated answer.
+ * \param size Bytes available at destination.
  *
  * \return 0 on success, negative on error.
  */
-int urtc_create_answer(urtc_peerconn_t *pc, char **answer);
+int urtc_create_answer(urtc_peerconn_t *pc, char *answer, size_t size);
 
 /**
  * Creates a local description for an offering peer connection
@@ -170,12 +170,12 @@ int urtc_create_answer(urtc_peerconn_t *pc, char **answer);
  * Akin to `createOffer` method of `RTCPeerConnection` in WebRTC JS API.
  *
  * \param pc Peer connection
- * \param offer Pointer to string pointer pointing to generated offer.
- *              Memory interally managed (caller need no and must not free).
+ * \param offer Destination pointer for generated offer.
+ * \param size Bytes available at destination.
  *
  * \return 0 on success, negative on error.
  */
-int urtc_create_offer(urtc_peerconn_t *pc, char **offer);
+int urtc_create_offer(urtc_peerconn_t *pc, char *offer, size_t size);
 
 /**
  * Sets local description for peer connection