/* GNU Mailutils -- a suite of utilities for electronic mail Copyright (C) 2003, 2007, 2008, 2009, 2010 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, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include "imap4d.h" #ifdef WITH_TLS static int tls_available; static int tls_done; /* 6.2.1. STARTTLS Command Arguments: none Responses: no specific response for this command Result: OK - starttls completed, begin TLS negotiation BAD - command unknown or arguments invalid */ int imap4d_starttls (struct imap4d_command *command, imap4d_tokbuf_t tok) { int status; if (!tls_available || tls_done) return io_completion_response (command, RESP_BAD, "Invalid command"); if (imap4d_tokbuf_argc (tok) != 2) return io_completion_response (command, RESP_BAD, "Invalid arguments"); util_atexit (mu_deinit_tls_libs); status = io_completion_response (command, RESP_OK, "Begin TLS negotiation"); io_flush (); tls_done = imap4d_init_tls_server () == 0; if (tls_done) { imap4d_capability_remove (IMAP_CAPA_STARTTLS); login_disabled = 0; imap4d_capability_remove (IMAP_CAPA_LOGINDISABLED); tls_required = 0; imap4d_capability_remove (IMAP_CAPA_XTLSREQUIRED); } else { mu_diag_output (MU_DIAG_ERROR, _("session terminated")); util_bye (); exit (EX_OK); } return status; } void starttls_init () { tls_available = mu_check_tls_environment (); if (tls_available) tls_available = mu_init_tls_libs (); if (tls_available) imap4d_capability_add (IMAP_CAPA_STARTTLS); } #endif /* WITH_TLS */ /* EOF */