Skip any non-content information when looking for and handling content.

This fixes a bug with Jitsi and conference calling. Jitsi implements XEP-0298
which places some conference-info information in the session-initiate request
which chan_motif did not expect to occur.
........

Merged revisions 372995 from http://svn.asterisk.org/svn/asterisk/branches/11


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@372996 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_motif.c

@@ -2098,10 +2098,16 @@ static int jingle_interpret_content(struct jingle_session *session, ikspak *pak)
 
 	/* Look at the content in the session initiation */
 	for (content = iks_child(iks_child(pak->x)); content; content = iks_next(content)) {
-		char *name = iks_find_attrib(content, "name");
+		char *name;
 		struct ast_rtp_instance *rtp = NULL;
 		iks *description, *transport;
 
+		if (strcmp(iks_name(content), "content")) {
+			continue;
+		}
+
+		name = iks_find_attrib(content, "name");
+
 		if (session->transport != JINGLE_TRANSPORT_GOOGLE_V1) {
 			/* If this content stanza has no name consider it invalid and move on */
 			if (ast_strlen_zero(name) && !(name = iks_find_attrib(content, "jin:name"))) {