xref: /openbsd/usr.sbin/smtpd/rfc5322.h (revision 4bdff4be)
1 /*	$OpenBSD: rfc5322.h,v 1.1 2018/08/23 10:07:06 eric Exp $	*/
2 
3 /*
4  * Copyright (c) 2018 Eric Faurot <eric@openbsd.org>
5  *
6  * Permission to use, copy, modify, and distribute this software for any
7  * purpose with or without fee is hereby granted, provided that the above
8  * copyright notice and this permission notice appear in all copies.
9  *
10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17  */
18 
19 struct rfc5322_result {
20 	const char	*hdr;
21 	const char	*value;
22 };
23 
24 #define	RFC5322_ERR		-1
25 #define	RFC5322_NONE		0
26 #define	RFC5322_HEADER_START	1
27 #define	RFC5322_HEADER_CONT	2
28 #define	RFC5322_HEADER_END	3
29 #define	RFC5322_END_OF_HEADERS	4
30 #define	RFC5322_BODY_START	5
31 #define	RFC5322_BODY		6
32 #define	RFC5322_END_OF_MESSAGE	7
33 
34 struct rfc5322_parser;
35 
36 struct rfc5322_parser *rfc5322_parser_new(void);
37 void rfc5322_free(struct rfc5322_parser *);
38 void rfc5322_clear(struct rfc5322_parser *);
39 int rfc5322_push(struct rfc5322_parser *, const char *);
40 int rfc5322_next(struct rfc5322_parser *, struct rfc5322_result *);
41 int rfc5322_unfold_header(struct rfc5322_parser *);
42