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/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 2003, 2007, 2009-2012 Free Software Foundation, Inc.
GNU Mailutils is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GNU Mailutils is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Mailutils. If not, see <http://www.gnu.org/licenses/>. */
#include "pop3d.h"
/* STLS command -- TLS/SSL encryption */
#ifdef WITH_TLS
int
pop3d_stls (char *arg, struct pop3d_session *session)
{
if (strlen (arg) != 0)
return ERR_BAD_ARGS;
if (state != initial_state)
return ERR_WRONG_STATE;
switch (session->tls)
{
case tls_ondemand:
case tls_required:
break;
default:
return ERR_WRONG_STATE;
}
if (tls_done)
return ERR_TLS_ACTIVE;
pop3d_outf ("+OK Begin TLS negotiation\n");
pop3d_flush_output ();
tls_done = pop3d_init_tls_server () == 0;
if (!tls_done)
{
mu_diag_output (MU_DIAG_ERROR, _("Session terminated"));
state = ABORT;
return ERR_UNKNOWN;
}
state = AUTHORIZATION; /* Confirm we're in this state. Necessary for
"tls required" to work */
return OK;
}
#endif /* WITH_TLS */
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