/*
 *   Copyright (c) 2004 David Parsons. All rights reserved.
 *   
 *   Redistribution and use in source and binary forms, with or without
 *   modification, are permitted provided that the following conditions
 *   are met:
 *  1. Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *  2. Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in
 *     the documentation and/or other materials provided with the
 *     distribution.
 *  3. All advertising materials mentioning features or use of this
 *     software must display the following acknowledgement:
 *     
 *   This product includes software developed by David Parsons
 *   (orc@pell.chi.il.us)
 *
 *  4. My name may not be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *     
 *  THIS SOFTWARE IS PROVIDED BY DAVID PARSONS ``AS IS'' AND ANY
 *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 *  THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
 *  PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL DAVID
 *  PARSONS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 *  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
 *  TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 *  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 *  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 *  LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
 *  IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 *  THE POSSIBILITY OF SUCH DAMAGE.
 *
 *  The licence and distribution terms for any publically available
 *  version or derivative of this code cannot be changed.  i.e. this
 *  code cannot simply be copied and put under another distribution
 *  licence [including the GNU Public Licence.]
 */

#ifndef __SMTP_H
#define __SMTP_H

/* This is Larry McVoy's fault */
#define unless(x)	if (!(x))

/* Magic smtp connection structure
 */
typedef struct {
    int   fd;
    char *host;
    int   port;
    int   flags;
#define SMTP_DBG	0x01
#define SMTP_EOF	0x02
#define SMTP_VERBOSE	0x04
} SMTP;

#define neof(x)	((x)->flags & SMTP_EOF)
#define ndbg(x)	((x)->flags & SMTP_DBG)
#define	nverbose(x)	((x)->flags & SMTP_VERBOSE)

#define setndbg(x)	((x)->flags |= SMTP_DBG)
#define setnverbose(x)	((x)->flags |= SMTP_VERBOSE)
#define clearneof(x)	((x)->flags &= ~SMTP_EOF)


SMTP* smtp(char*);
char* readline(int, int*);
char* nreadline(SMTP*);
void  nwriteline(SMTP*,char*);
int   nreply(SMTP*);
void  nfree(SMTP*);

#endif/*__SMTP_H*/