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#ifndef _ARPA_NAMESER_H
#define _ARPA_NAMESER_H
#include <stdint.h>
#include <bits/size_t.h>
#ifdef __cplusplus
extern "C" {
#endif
#define NS_PACKETSZ 512
#define NS_MAXDNAME 1025
#define NS_MAXLABEL 63
typedef enum __ns_rcode {
ns_r_noerror = 0,
ns_r_formerr = 1,
ns_r_servfail = 2,
ns_r_nxdomain = 3,
ns_r_notimpl = 4,
ns_r_refused = 5,
ns_r_yxdomain = 6,
ns_r_yxrrset = 7,
ns_r_nxrrset = 8,
ns_r_notauth = 9,
ns_r_notzone = 10,
ns_r_max = 11,
ns_r_badvers = 16,
ns_r_badsig = 16,
ns_r_badkey = 17,
ns_r_badtime = 18
} ns_rcode;
typedef enum __ns_type {
ns_t_invalid = 0,
ns_t_a = 1,
ns_t_ns = 2,
ns_t_md = 3,
ns_t_mf = 4,
ns_t_cname = 5,
ns_t_soa = 6,
ns_t_mb = 7,
ns_t_mg = 8,
ns_t_mr = 9,
ns_t_null = 10,
ns_t_wks = 11,
ns_t_ptr = 12,
ns_t_hinfo = 13,
ns_t_minfo = 14,
ns_t_mx = 15,
ns_t_txt = 16,
ns_t_rp = 17,
ns_t_afsdb = 18,
ns_t_x25 = 19,
ns_t_isdn = 20,
ns_t_rt = 21,
ns_t_nsap = 22,
ns_t_nsap_ptr = 23,
ns_t_sig = 24,
ns_t_key = 25,
ns_t_px = 26,
ns_t_gpos = 27,
ns_t_aaaa = 28,
ns_t_loc = 29,
ns_t_nxt = 30,
ns_t_eid = 31,
ns_t_nimloc = 32,
ns_t_srv = 33,
ns_t_atma = 34,
ns_t_naptr = 35,
ns_t_kx = 36,
ns_t_cert = 37,
ns_t_a6 = 38,
ns_t_dname = 39,
ns_t_sink = 40,
ns_t_opt = 41,
ns_t_apl = 42,
ns_t_tkey = 249,
ns_t_tsig = 250,
ns_t_ixfr = 251,
ns_t_axfr = 252,
ns_t_mailb = 253,
ns_t_maila = 254,
ns_t_any = 255,
ns_t_zxfr = 256,
ns_t_max = 65536
} ns_type;
typedef enum __ns_class {
ns_c_invalid = 0,
ns_c_in = 1,
ns_c_2 = 2,
ns_c_chaos = 3,
ns_c_hs = 4,
ns_c_none = 254,
ns_c_any = 255,
ns_c_max = 65536
} ns_class;
typedef enum __ns_sect {
ns_s_qd = 0,
ns_s_zn = 0,
ns_s_an = 1,
ns_s_pr = 1,
ns_s_ns = 2,
ns_s_ud = 2,
ns_s_ar = 3,
ns_s_max = 4
} ns_sect;
typedef struct __ns_msg {
const unsigned char *_msg, *_eom;
uint16_t _id, _flags, _counts[ns_s_max];
const unsigned char *_sections[ns_s_max];
ns_sect _sect;
int _rrnum;
const unsigned char *_msg_ptr;
} ns_msg;
#define ns_msg_id(handle) ((handle)._id + 0)
#define ns_msg_base(handle) ((handle)._msg + 0)
#define ns_msg_end(handle) ((handle)._eom + 0)
#define ns_msg_size(handle) ((handle)._eom - (handle)._msg)
#define ns_msg_count(handle, section) ((handle)._counts[section] + 0)
typedef struct __ns_rr {
char name[NS_MAXDNAME];
uint16_t type;
uint16_t rr_class;
uint32_t ttl;
uint16_t rdlength;
const unsigned char *rdata;
} ns_rr;
#define ns_rr_name(rr) (((rr).name[0] != '\0') ? (rr).name : ".")
#define ns_rr_type(rr) ((ns_type)((rr).type + 0))
#define ns_rr_class(rr) ((ns_class)((rr).rr_class + 0))
#define ns_rr_ttl(rr) ((rr).ttl + 0)
#define ns_rr_rdlen(rr) ((rr).rdlength + 0)
#define ns_rr_rdata(rr) ((rr).rdata + 0)
#ifndef __MLIBC_ABI_ONLY
#define NS_GET16(s, cp) (void)((s) = ns_get16(((cp) += 2) - 2))
#define NS_GET32(l, cp) (void)((l) = ns_get32(((cp) += 4) - 4))
#define NS_PUT16(s, cp) ns_put16((s), ((cp) += 2) - 2)
#define NS_PUT32(l, cp) ns_put32((l), ((cp) += 4) - 4)
unsigned ns_get16(const unsigned char *);
unsigned long ns_get32(const unsigned char *);
void ns_put16(unsigned, unsigned char *);
void ns_put32(unsigned long, unsigned char *);
int ns_initparse(const unsigned char *msg, int msglen, ns_msg *handle);
int ns_parserr(ns_msg *msg, ns_sect section, int rrnum, ns_rr *rr);
int ns_name_uncompress(const unsigned char *msg, const unsigned char *eom,
const unsigned char *src, char *dst, size_t dstsize);
#endif /* !__MLIBC_ABI_ONLY */
typedef struct {
unsigned id :16;
#if __BYTE_ORDER == __BIG_ENDIAN
unsigned qr: 1;
unsigned opcode: 4;
unsigned aa: 1;
unsigned tc: 1;
unsigned rd: 1;
unsigned ra: 1;
unsigned unused :1;
unsigned ad: 1;
unsigned cd: 1;
unsigned rcode :4;
#else
unsigned rd :1;
unsigned tc :1;
unsigned aa :1;
unsigned opcode :4;
unsigned qr :1;
unsigned rcode :4;
unsigned cd: 1;
unsigned ad: 1;
unsigned unused :1;
unsigned ra :1;
#endif
unsigned qdcount :16;
unsigned ancount :16;
unsigned nscount :16;
unsigned arcount :16;
} HEADER;
#define PACKETSZ NS_PACKETSZ
#define MAXDNAME NS_MAXDNAME
#define NOERROR ns_r_noerror
#define FORMERR ns_r_formerr
#define SERVFAIL ns_r_servfail
#define NXDOMAIN ns_r_nxdomain
#define NOTIMP ns_r_notimpl
#define REFUSED ns_r_refused
#define YXDOMAIN ns_r_yxdomain
#define YXRRSET ns_r_yxrrset
#define NXRRSET ns_r_nxrrset
#define NOTAUTH ns_r_notauth
#define NOTZONE ns_r_notzone
#define T_A ns_t_a
#define T_NS ns_t_ns
#define T_MD ns_t_md
#define T_MF ns_t_mf
#define T_CNAME ns_t_cname
#define T_SOA ns_t_soa
#define T_MB ns_t_mb
#define T_MG ns_t_mg
#define T_MR ns_t_mr
#define T_NULL ns_t_null
#define T_WKS ns_t_wks
#define T_PTR ns_t_ptr
#define T_HINFO ns_t_hinfo
#define T_MINFO ns_t_minfo
#define T_MX ns_t_mx
#define T_TXT ns_t_txt
#define T_RP ns_t_rp
#define T_AFSDB ns_t_afsdb
#define T_X25 ns_t_x25
#define T_ISDN ns_t_isdn
#define T_RT ns_t_rt
#define T_NSAP ns_t_nsap
#define T_NSAP_PTR ns_t_nsap_ptr
#define T_SIG ns_t_sig
#define T_KEY ns_t_key
#define T_PX ns_t_px
#define T_GPOS ns_t_gpos
#define T_AAAA ns_t_aaaa
#define T_LOC ns_t_loc
#define T_NXT ns_t_nxt
#define T_EID ns_t_eid
#define T_NIMLOC ns_t_nimloc
#define T_SRV ns_t_srv
#define T_ATMA ns_t_atma
#define T_NAPTR ns_t_naptr
#define T_A6 ns_t_a6
#define T_DNAME ns_t_dname
#define T_TSIG ns_t_tsig
#define T_IXFR ns_t_ixfr
#define T_AXFR ns_t_axfr
#define T_MAILB ns_t_mailb
#define T_MAILA ns_t_maila
#define T_ANY ns_t_any
#define C_IN ns_c_in
#define C_CHAOS ns_c_chaos
#define C_HS ns_c_hs
#define C_NONE ns_c_none
#define C_ANY ns_c_any
#define GETSHORT NS_GET16
#define GETLONG NS_GET32
#define PUTSHORT NS_PUT16
#define PUTLONG NS_PUT32
#ifdef __cplusplus
}
#endif
#endif // _ARPA_NAMESER_H
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