/*
*
* This file is
- * Copyright (C) 1997-1999 Ian Jackson <ian@davenant.greenend.org.uk>
+ * Copyright (C) 1997-2000 Ian Jackson <ian@davenant.greenend.org.uk>
*
* It is part of adns, which is
* Copyright (C) 1997-2000 Ian Jackson <ian@davenant.greenend.org.uk>
- * Copyright (C) 1999 Tony Finch <dot@dotat.at>
+ * Copyright (C) 1999-2000 Tony Finch <dot@dotat.at>
*
* 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
* GNU General Public License for more details.
*
*
- * For the benefit of certain LGPL'd `omnibus' software which provides
- * a uniform interface to various things including adns, I make the
- * following additional licence. I do this because the GPL would
- * otherwise force either the omnibus software to be GPL'd or for the
- * adns-using part to be distributed separately.
+ * For the benefit of certain LGPL'd `omnibus' software which
+ * provides a uniform interface to various things including adns, I
+ * make the following additional licence. I do this because the GPL
+ * would otherwise force either the omnibus software to be GPL'd or
+ * the adns-using part to be distributed separately.
*
- * So, you may also redistribute and/or modify adns.h (but only the
+ * So: you may also redistribute and/or modify adns.h (but only the
* public header file adns.h and not any other part of adns) under the
* terms of the GNU Library General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at
* applications where the whole distribution is not GPL'd, are still
* likely to be in violation of the GPL. Anyone who wants to do this
* should contact Ian Jackson. Please note that to avoid encouraging
- * people to infringe the GPL as it applies the body of adns, Ian thinks
- * that if you take advantage of the special exception to redistribute
- * just adns.h under the LGPL, you should retain this paragraph in its
- * place in the appropriate copyright statements.
+ * people to infringe the GPL as it applies to the body of adns, Ian
+ * thinks that if you take advantage of the special exception to
+ * redistribute just adns.h under the LGPL, you should retain this
+ * paragraph in its place in the appropriate copyright statements.
*
*
* You should have received a copy of the GNU General Public License,
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*
- * $Id: adns.h,v 1.79 2000/05/07 22:37:18 ian Exp $
+ * $Id: adns.h,v 1.83 2000/09/17 01:56:18 ian Exp $
*/
#ifndef ADNS_H_INCLUDED
#define ADNS_H_INCLUDED
-#ifdef __cplusplus
-extern "C" { /* I really dislike this - iwj. */
-#endif
#include <stdio.h>
#include <sys/time.h>
#include <unistd.h>
+#ifdef __cplusplus
+extern "C" { /* I really dislike this - iwj. */
+#endif
+
/* All struct in_addr anywhere in adns are in NETWORK byte order. */
typedef struct adns__state *adns_state;
* names) will be quoted, as \X if it is a printing ASCII character or
* \DDD otherwise.
*
- * (The characters which will be unquoted are the printing 7-bit ASCII
- * characters except the punctuation characters " ( ) @ ; $ \
-
- * I.e. unquoted characters are alphanumerics, and the following
- * punctuation characters: ! # % ^ & * - _ = + [ ] { }
- *
* If the query goes via a CNAME then the canonical name (ie, the
* thing that the CNAME record refers to) is usually allowed to
* contain any characters, which will be quoted as above. With
* header field. The particular format used is that if the mailbox
* requires quoting according to the rules in RFC822 then the
* local-part is quoted in double quotes, which end at the next
- * unescaped double quote. (\ is the escape char, and is doubled, and
- * is used to escape only \ and ".) Otherwise the local-part is
- * presented as-is. In any case this is followed by an @ and the
- * domain. The domain will not contain any characters not legal in
- * hostnames. adns will protect the application from local parts
- * containing control characters - these appear to be legal according
- * to RFC822 but are clearly a bad idea.
+ * unescaped double quote (\ is the escape char, and is doubled, and
+ * is used to escape only \ and "). If the local-part is legal
+ * without quoting according to RFC822, it is presented as-is. In any
+ * case the local-part is followed by an @ and the domain. The domain
+ * will not contain any characters not legal in hostnames.
+ *
+ * Unquoted local-parts may contain any printing 7-bit ASCII
+ * except the punctuation characters ( ) < > @ , ; : \ " [ ]
+ * I.e. they may contain alphanumerics, and the following
+ * punctuation characters: ! # % ^ & * - _ = + { } .
+ *
+ * adns will reject local parts containing control characters (byte
+ * values 0-31, 127-159, and 255) - these appear to be legal according
+ * to RFC822 (at least 0-127) but are clearly a bad idea. RFC1035
+ * syntax does not make any distinction between a single RFC822
+ * quoted-string containing full stops, and a series of quoted-strings
+ * separated by full stops; adns will return anything that isn't all
+ * valid atoms as a single quoted-string. RFC822 does not allow
+ * high-bit-set characters at all, but adns does allow them in
+ * local-parts, treating them as needing quoting.
*
* If you ask for the domain with _raw then _no_ checking is done
* (even on the host part, regardless of adns_qf_quoteok_anshost), and
* you just get the domain name in master file format.
*
* If no mailbox is supplied the returned string will be `.' in either
- * caswe.
+ * case.
*/
typedef enum {
~mdw / adns / blobdiff