47 lines
1.4 KiB
C
47 lines
1.4 KiB
C
/*********************************************************************
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PicoTCP. Copyright (c) 2012 TASS Belgium NV. Some rights reserved.
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See LICENSE and COPYING for usage.
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.
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Authors: Kristof Roelants
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*********************************************************************/
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#ifndef INCLUDE_PICO_DNS_CLIENT
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#define INCLUDE_PICO_DNS_CLIENT
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#define PICO_DNS_NS_DEL 0
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#define PICO_DNS_NS_ADD 1
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#include "pico_config.h"
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/* Compression values */
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#define PICO_DNS_LABEL 0
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#define PICO_DNS_POINTER 3
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/* Label len */
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#define PICO_DNS_LABEL_INITIAL 1u
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#define PICO_DNS_LABEL_ROOT 1
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/* TTL values */
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#define PICO_DNS_MAX_TTL 604800 /* one week */
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/* Len of an IPv4 address string */
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#define PICO_DNS_IPV4_ADDR_LEN 16
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#define PICO_DNS_IPV6_ADDR_LEN 54
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/* Default nameservers + port */
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#define PICO_DNS_NS_DEFAULT "208.67.222.222"
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#define PICO_DNS_NS_PORT 53
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int pico_dns_client_init(void);
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/* flag is PICO_DNS_NS_DEL or PICO_DNS_NS_ADD */
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int pico_dns_client_nameserver(struct pico_ip4 *ns, uint8_t flag);
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int pico_dns_client_getaddr(const char *url, void (*callback)(char *ip, void *arg), void *arg);
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int pico_dns_client_getname(const char *ip, void (*callback)(char *url, void *arg), void *arg);
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#ifdef PICO_SUPPORT_IPV6
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int pico_dns_client_getaddr6(const char *url, void (*callback)(char *, void *), void *arg);
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int pico_dns_client_getname6(const char *url, void (*callback)(char *, void *), void *arg);
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#endif
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#endif /* _INCLUDE_PICO_DNS_CLIENT */
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