1 files changed, 33 insertions, 7 deletions

diff --git a/pjsip/src/pjsip-ua/sip_inv.c b/pjsip/src/pjsip-ua/sip_inv.c
index d3176862..e35f0eea 100644
--- a/pjsip/src/pjsip-ua/sip_inv.c
+++ b/pjsip/src/pjsip-ua/sip_inv.c
@@ -112,11 +112,16 @@ struct tsx_inv_data
 static pj_status_t mod_inv_load(pjsip_endpoint *endpt)
 {
     pj_str_t allowed[] = {{"INVITE", 6}, {"ACK",3}, {"BYE",3}, {"CANCEL",6}};
+    pj_str_t accepted = { "application/sdp", 15 };
 
     /* Register supported methods: INVITE, ACK, BYE, CANCEL */
     pjsip_endpt_add_capability(endpt, &mod_inv.mod, PJSIP_H_ALLOW, NULL,
 			       PJ_ARRAY_SIZE(allowed), allowed);
 
+    /* Register "application/sdp" in Accept header */
+    pjsip_endpt_add_capability(endpt, &mod_inv.mod, PJSIP_H_ACCEPT, NULL,
+			       1, &accepted);
+
     return PJ_SUCCESS;
 }
 
@@ -959,22 +964,43 @@ static int print_sdp(pjsip_msg_body *body, char *buf, pj_size_t len)
     return pjmedia_sdp_print(body->data, buf, len);
 }
 
-static pjsip_msg_body *create_sdp_body(pj_pool_t *pool,
-				       const pjmedia_sdp_session *c_sdp)
+
+PJ_DEF(pj_status_t) pjsip_create_sdp_body( pj_pool_t *pool,
+					   pjmedia_sdp_session *sdp,
+					   pjsip_msg_body **p_body)
 {
+    const pj_str_t STR_APPLICATION = { "application", 11};
+    const pj_str_t STR_SDP = { "sdp", 3 };
     pjsip_msg_body *body;
 
-
     body = pj_pool_zalloc(pool, sizeof(pjsip_msg_body));
-    PJ_ASSERT_RETURN(body != NULL, NULL);
+    PJ_ASSERT_RETURN(body != NULL, PJ_ENOMEM);
 
-    body->content_type.type = pj_str("application");
-    body->content_type.subtype = pj_str("sdp");
-    body->data = pjmedia_sdp_session_clone(pool, c_sdp);
+    body->content_type.type = STR_APPLICATION;
+    body->content_type.subtype = STR_SDP;
+    body->data = sdp;
     body->len = 0;
     body->clone_data = &clone_sdp;
     body->print_body = &print_sdp;
 
+    *p_body = body;
+
+    return PJ_SUCCESS;
+}
+
+static pjsip_msg_body *create_sdp_body(pj_pool_t *pool,
+				       const pjmedia_sdp_session *c_sdp)
+{
+    pjsip_msg_body *body;
+    pj_status_t status;
+
+    status = pjsip_create_sdp_body(pool, 
+				   pjmedia_sdp_session_clone(pool, c_sdp),
+				   &body);
+
+    if (status != PJ_SUCCESS)
+	return NULL;
+
     return body;
 }