From c58379bde376cb2298fca14f83a86626f1b76f2f Mon Sep 17 00:00:00 2001 From: Lennart Poettering Date: Sat, 7 May 2005 13:37:03 +0000 Subject: rename libavahi-core to avahi-core git-svn-id: file:///home/lennart/svn/public/avahi/trunk@57 941a03a8-eaeb-0310-b9a0-b1bbd8fe43fe --- avahi-core/dns.h | 103 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 103 insertions(+) create mode 100644 avahi-core/dns.h (limited to 'avahi-core/dns.h') diff --git a/avahi-core/dns.h b/avahi-core/dns.h new file mode 100644 index 0000000..61a9cb6 --- /dev/null +++ b/avahi-core/dns.h @@ -0,0 +1,103 @@ +#ifndef foodnshfoo +#define foodnshfoo + +/* $Id$ */ + +/*** + This file is part of avahi. + + avahi is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + avahi 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 Lesser General + Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with avahi; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include + +#include "rr.h" + +#define AVAHI_DNS_PACKET_MAX_SIZE 9000 +#define AVAHI_DNS_PACKET_HEADER_SIZE 12 + +typedef struct _AvahiDnsPacket { + guint size, rindex, max_size; + GHashTable *name_table; /* for name compression */ +} AvahiDnsPacket; + + +#define AVAHI_DNS_PACKET_DATA(p) (((guint8*) p) + sizeof(AvahiDnsPacket)) + +AvahiDnsPacket* avahi_dns_packet_new(guint size); +AvahiDnsPacket* avahi_dns_packet_new_query(guint size); +AvahiDnsPacket* avahi_dns_packet_new_response(guint size); + +void avahi_dns_packet_free(AvahiDnsPacket *p); +void avahi_dns_packet_set_field(AvahiDnsPacket *p, guint index, guint16 v); +guint16 avahi_dns_packet_get_field(AvahiDnsPacket *p, guint index); + +guint8 *avahi_dns_packet_extend(AvahiDnsPacket *p, guint l); + +guint8 *avahi_dns_packet_append_uint16(AvahiDnsPacket *p, guint16 v); +guint8 *avahi_dns_packet_append_uint32(AvahiDnsPacket *p, guint32 v); +guint8 *avahi_dns_packet_append_name(AvahiDnsPacket *p, const gchar *name); +guint8 *avahi_dns_packet_append_bytes(AvahiDnsPacket *p, gconstpointer, guint l); +guint8* avahi_dns_packet_append_key(AvahiDnsPacket *p, AvahiKey *k, gboolean unicast_response); +guint8* avahi_dns_packet_append_record(AvahiDnsPacket *p, AvahiRecord *r, gboolean cache_flush); +guint8* avahi_dns_packet_append_string(AvahiDnsPacket *p, const gchar *s); + +gint avahi_dns_packet_is_query(AvahiDnsPacket *p); +gint avahi_dns_packet_check_valid(AvahiDnsPacket *p); + +gint avahi_dns_packet_consume_uint16(AvahiDnsPacket *p, guint16 *ret_v); +gint avahi_dns_packet_consume_uint32(AvahiDnsPacket *p, guint32 *ret_v); +gint avahi_dns_packet_consume_name(AvahiDnsPacket *p, gchar *ret_name, guint l); +gint avahi_dns_packet_consume_bytes(AvahiDnsPacket *p, gpointer ret_data, guint l); +AvahiKey* avahi_dns_packet_consume_key(AvahiDnsPacket *p, gboolean *ret_unicast_response); +AvahiRecord* avahi_dns_packet_consume_record(AvahiDnsPacket *p, gboolean *ret_cache_flush); +gint avahi_dns_packet_consume_string(AvahiDnsPacket *p, gchar *ret_string, guint l); + +gconstpointer avahi_dns_packet_get_rptr(AvahiDnsPacket *p); + +gint avahi_dns_packet_skip(AvahiDnsPacket *p, guint length); + +gboolean avahi_dns_packet_is_empty(AvahiDnsPacket *p); +guint avahi_dns_packet_space(AvahiDnsPacket *p); + +#define AVAHI_DNS_FIELD_ID 0 +#define AVAHI_DNS_FIELD_FLAGS 1 +#define AVAHI_DNS_FIELD_QDCOUNT 2 +#define AVAHI_DNS_FIELD_ANCOUNT 3 +#define AVAHI_DNS_FIELD_NSCOUNT 4 +#define AVAHI_DNS_FIELD_ARCOUNT 5 + +#define AVAHI_DNS_FLAG_QR (1 << 15) +#define AVAHI_DNS_FLAG_OPCODE (15 << 11) +#define AVAHI_DNS_FLAG_RCODE (15) +#define AVAHI_DNS_FLAG_TC (1 << 9) + +#define AVAHI_DNS_FLAGS(qr, opcode, aa, tc, rd, ra, z, ad, cd, rcode) \ + (((guint16) !!qr << 15) | \ + ((guint16) (opcode & 15) << 11) | \ + ((guint16) !!aa << 10) | \ + ((guint16) !!tc << 9) | \ + ((guint16) !!rd << 8) | \ + ((guint16) !!ra << 7) | \ + ((guint16) !!ad << 5) | \ + ((guint16) !!cd << 4) | \ + ((guint16) (rd & 15))) + + +gchar *avahi_unescape_label(gchar *dest, guint size, const gchar **name); + +#endif + -- cgit