Very basic carbons support is hacked into mcabber. Messages are now intercepted and parsed. It probably makes more sense to implement XEP-0297: Stanza Forwarding in a more general way. A better way to display the carbons (so the user actually knows it is a carbon message) is in the pipeline.

#ifndef __MCABBER_XMPP_IQREQUEST_H__
#define __MCABBER_XMPP_IQREQUEST_H__ 1

void xmpp_iq_request(const char *fulljid, const char *xmlns);

#endif /* __MCABBER_XMPP_IQREQUEST_H__ */

/* vim: set et cindent cinoptions=>2\:2(0 ts=2 sw=2:  For Vim users... */