/*
This file is part of GNUnet
- (C) 2010-2013 Christian Grothoff (and other contributing authors)
+ Copyright (C) 2010-2014 GNUnet e.V.
GNUnet is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
You should have received a copy of the GNU General Public License
along with GNUnet; see the file COPYING. If not, write to the
- Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA.
+ Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA.
*/
/**
- * @file include/gnunet_dnsparser_lib.h
- * @brief API for helper library to parse DNS packets.
* @author Philipp Toelke
* @author Christian Grothoff
+ *
+ * @file
+ * API for helper library to parse DNS packets.
+ *
+ * @defgroup dns-parser DNS parser library
+ * Helper library to parse DNS packets.
+ * @{
*/
#ifndef GNUNET_DNSPARSER_LIB_H
#define GNUNET_DNSPARSER_LIB_H
/**
- * Information from SRV records (RFC 2782). The 'service', 'proto'
- * and 'domain_name' fields together give the DNS-name which for SRV
- * records is of the form "_$SERVICE._$PROTO.$DOMAIN_NAME". The DNS
- * parser provides the full name in `struct DNSPARSER_Record` and the
- * individual components in the respective fields of this struct.
- * When serializing, you CAN set the 'name' field of 'struct
- * GNUNET_DNSPARSER_Record' to NULL, in which case the DNSPARSER code
- * will populate 'name' from the 'service', 'proto' and 'domain_name'
- * fields in this struct.
+ * Information from SRV records (RFC 2782).
*/
struct GNUNET_DNSPARSER_SrvRecord
{
- /**
- * Service name without the underscore (!). Note that RFC 6335 clarifies the
- * set of legal characters for service names.
- * In UTF-8 format. The library will convert from and to DNS-IDNA
- * as necessary. Use #GNUNET_DNSPARSER_check_label() to test if an
- * individual label is well-formed. If a given name is not well-formed,
- * creating the DNS packet will fail.
- */
- char *service;
-
- /**
- * Transport protocol (typcially "tcp" or "udp", but others might be allowed).
- * Without the underscore (!).
- */
- char *proto;
-
- /**
- * Domain name for which the record is valid
- * In UTF-8 format. The library will convert from and to DNS-IDNA
- * as necessary. Use #GNUNET_DNSPARSER_check_label() to test if an
- * individual label is well-formed. If a given name is not well-formed,
- * creating the DNS packet will fail.
- */
- char *domain_name;
-
/**
* Hostname offering the service.
* In UTF-8 format. The library will convert from and to DNS-IDNA
/**
* Parse a DNS SRV record.
*
- * @param r_name name of the SRV record
* @param udp_payload reference to UDP packet
* @param udp_payload_length length of @a udp_payload
* @param off pointer to the offset of the query to parse in the SRV record (to be
* @return the parsed SRV record, NULL on error
*/
struct GNUNET_DNSPARSER_SrvRecord *
-GNUNET_DNSPARSER_parse_srv (const char *r_name,
- const char *udp_payload,
+GNUNET_DNSPARSER_parse_srv (const char *udp_payload,
size_t udp_payload_length,
size_t *off);
GNUNET_DNSPARSER_free_cert (struct GNUNET_DNSPARSER_CertRecord *cert);
+/**
+ * Convert a block of binary data to HEX.
+ *
+ * @param data binary data to convert
+ * @param data_size number of bytes in @a data
+ * @return HEX string (lower case)
+ */
+char *
+GNUNET_DNSPARSER_bin_to_hex (const void *data,
+ size_t data_size);
+
+
+/**
+ * Convert a HEX string to block of binary data.
+ *
+ * @param hex HEX string to convert (may contain mixed case)
+ * @param data where to write result, must be
+ * at least `strlen(hex)/2` bytes long
+ * @return number of bytes written to data
+ */
+size_t
+GNUNET_DNSPARSER_hex_to_bin (const char *hex,
+ void *data);
+
+
#endif
+
+/** @} */ /* end of group */