+ if (starttls_proto == PROTO_XMPP)
+ {
+ int seen = 0;
+ BIO_printf(sbio,"<stream:stream "
+ "xmlns:stream='http://etherx.jabber.org/streams' "
+ "xmlns='jabber:client' to='%s' version='1.0'>", host);
+ seen = BIO_read(sbio,mbuf,BUFSIZZ);
+ mbuf[seen] = 0;
+ while (!strstr(mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'"))
+ {
+ if (strstr(mbuf, "/stream:features>"))
+ goto shut;
+ seen = BIO_read(sbio,mbuf,BUFSIZZ);
+ mbuf[seen] = 0;
+ }
+ BIO_printf(sbio, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
+ seen = BIO_read(sbio,sbuf,BUFSIZZ);
+ sbuf[seen] = 0;
+ if (!strstr(sbuf, "<proceed"))
+ goto shut;
+ mbuf[0] = 0;
+ }