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34 lines
578 B
C
34 lines
578 B
C
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#ifndef __DNS_H__
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#define __DNS_H__
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#include <sys/types.h>
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#include <inttypes.h>
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#define TYPE_A 1U
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#define TYPE_SOA 6U
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#define TYPE_MX 15U
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#define TYPE_TXT 16U
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#define TYPE_AAAA 28U
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#define FLAGS_OPCODE_QUERY 0x0
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#define FLAGS_RECURSION_DESIRED 0x100
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#define CLASS_IN 1U
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typedef struct {
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uint16_t id;
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uint16_t flags;
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uint16_t qdcount;
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uint16_t ancount;
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uint16_t nscount;
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uint16_t arcount;
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} __attribute__((__packed__)) DNS_Header;
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#define PUT_HTONS(dst, val) do { \
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*dst++ = val >> 8; \
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*dst++ = val & 0xff; \
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} while (0)
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#endif
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