/* smtp_out.h, Copyright (C) Oliver Kurth,
 *
 * This program 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 2 of the License, or
 * (at your option) any later version.
 * 
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/time.h>
#include <netinet/in.h>
#include <netdb.h>

#define SMTP_BUF_LEN 1024
#define SMTP_SIZE_ADD 1024

#define SMTP_INITIAL_TIMEOUT 5*60
#define SMTP_CMD_TIMEOUT 5*60
#define SMTP_DATA_TIMEOUT 5*60
#define SMTP_FINAL_TIMEOUT 10*60

typedef
enum _smtp_error{
  smtp_ok = 0,   /* mail was delivered to at least one recpient */
  smtp_trylater, /* server responded with 4xx */
  smtp_fail,     /* server responded with 5xx */
  smtp_timeout,  /* connection timed out */
  smtp_eof,      /* got unexpected EOF */
  smtp_syntax,   /* unexpected response */
  smtp_cancel    /* we gave up (eg. size) */
} smtp_error;


typedef
struct _smtp_base{
  FILE *in;
  FILE *out;

  gint sock;
  gint dup_sock;

  gchar *remote_host;
  gchar *helo_name;

  gchar *buffer;
  gint last_code;

  gboolean use_esmtp;
  gboolean use_size;
  gboolean use_pipelining;
  gboolean use_auth;
  
  gint max_size;

  gchar **auth_names;

  gchar *auth_name;
  gchar *auth_login;
  gchar *auth_secret;

  smtp_error error;

} smtp_base;

gchar *set_heloname(smtp_base *psb, gchar *default_name, gboolean do_correct);
gboolean set_auth(smtp_base *psb, gchar *name, gchar *login, gchar *secret);
void destroy_smtpbase(smtp_base *psb);
smtp_base *smtp_out_open(gchar *host, gint port, GList *resolve_list);
smtp_base *smtp_out_open_child(gchar *cmd);
gboolean smtp_out_rset(smtp_base *psb);
gboolean smtp_out_init(smtp_base *psb);
gint smtp_out_msg(smtp_base *psb,
		  message *msg, address *return_path,
		  GList *rcpt_list, GList *hdr_list);
gboolean smtp_out_quit(smtp_base *psb);

gint smtp_deliver(gchar *host, gint port, GList *resolve_list,
		  message *msg,
		  address *return_path,
		  GList *rcpt_list);