/*
- * $Id: rfc1035.h,v 1.14 2005/05/10 10:09:31 hno Exp $
+ * Copyright (C) 1996-2015 The Squid Software Foundation and contributors
*
- * AUTHOR: Duane Wessels
- *
- * SQUID Web Proxy Cache http://www.squid-cache.org/
- * ----------------------------------------------------------
- *
- * Squid is the result of efforts by numerous individuals from
- * the Internet community; see the CONTRIBUTORS file for full
- * details. Many organizations have provided support for Squid's
- * development; see the SPONSORS file for full details. Squid is
- * Copyrighted (C) 2001 by the Regents of the University of
- * California; see the COPYRIGHT file for full details. Squid
- * incorporates software developed and/or copyrighted by other
- * sources; see the CREDITS file for full details.
- *
- * 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., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
- *
+ * Squid software is distributed under GPLv2+ license and includes
+ * contributions from numerous individuals and organizations.
+ * Please see the COPYING and CONTRIBUTORS files for details.
*/
#ifndef SQUID_RFC1035_H
#define SQUID_RFC1035_H
-#include "config.h"
#if HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#include <arpa/inet.h>
#endif
-/* rfc1035 - DNS */
-#define RFC1035_MAXHOSTNAMESZ 250
+#include "rfc2181.h"
+
+/**
+ \par RFC 1035 Section 3.1:
+ * To simplify implementations, the total length of a domain name (i.e.,
+ * label octets and label length octets) is restricted to 255 octets or
+ * less.
+ *\par
+ * Clarified by RFC 2181 Section 11. (RFC2181_MAXHOSTNAMELEN)
+ */
+#define RFC1035_MAXHOSTNAMESZ RFC2181_MAXHOSTNAMELEN
+
+#define RFC1035_DEFAULT_PACKET_SZ 512
+
typedef struct _rfc1035_rr rfc1035_rr;
struct _rfc1035_rr {
char name[RFC1035_MAXHOSTNAMESZ];
unsigned short rdlength;
char *rdata;
};
+
typedef struct _rfc1035_query rfc1035_query;
struct _rfc1035_query {
char name[RFC1035_MAXHOSTNAMESZ];
unsigned short qtype;
unsigned short qclass;
};
+
typedef struct _rfc1035_message rfc1035_message;
struct _rfc1035_message {
unsigned short id;
};
SQUIDCEXTERN ssize_t rfc1035BuildAQuery(const char *hostname,
- char *buf,
- size_t sz,
- unsigned short qid,
- rfc1035_query *query);
-SQUIDCEXTERN ssize_t rfc1035BuildPTRQuery(const struct IN_ADDR,
- char *buf,
- size_t sz,
- unsigned short qid,
- rfc1035_query *query);
+ char *buf,
+ size_t sz,
+ unsigned short qid,
+ rfc1035_query * query,
+ ssize_t edns_sz);
+SQUIDCEXTERN ssize_t rfc1035BuildPTRQuery(const struct in_addr,
+ char *buf,
+ size_t sz,
+ unsigned short qid,
+ rfc1035_query * query,
+ ssize_t edns_sz);
SQUIDCEXTERN void rfc1035SetQueryID(char *, unsigned short qid);
SQUIDCEXTERN int rfc1035MessageUnpack(const char *buf,
- size_t sz,
- rfc1035_message ** answer);
+ size_t sz,
+ rfc1035_message ** answer);
SQUIDCEXTERN int rfc1035QueryCompare(const rfc1035_query *, const rfc1035_query *);
-SQUIDCEXTERN void rfc1035MessageDestroy(rfc1035_message * message);
-SQUIDCEXTERN int rfc1035_errno;
-SQUIDCEXTERN const char *rfc1035_error_message;
+SQUIDCEXTERN void rfc1035RRDestroy(rfc1035_rr ** rr, int n);
+SQUIDCEXTERN void rfc1035MessageDestroy(rfc1035_message ** message);
+SQUIDCEXTERN const char * rfc1035ErrorMessage(int n);
#define RFC1035_TYPE_A 1
+#define RFC1035_TYPE_CNAME 5
#define RFC1035_TYPE_PTR 12
#define RFC1035_CLASS_IN 1
+/* Child Library RFC3596 Depends on some otherwise internal functions */
+SQUIDCEXTERN int rfc1035HeaderPack(char *buf,
+ size_t sz,
+ rfc1035_message * hdr);
+SQUIDCEXTERN int rfc1035HeaderUnpack(const char *buf,
+ size_t sz,
+ unsigned int *off,
+ rfc1035_message * h);
+SQUIDCEXTERN int rfc1035QuestionPack(char *buf,
+ size_t sz,
+ const char *name,
+ const unsigned short type,
+ const unsigned short _class);
+SQUIDCEXTERN int rfc1035RRPack(char *buf, size_t sz, const rfc1035_rr * RR);
+
#endif /* SQUID_RFC1035_H */
+