[337] | 1 | #ifndef _RESOLV_H
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| 2 | #define _RESOLV_H
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| 3 |
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| 4 | #include <stdint.h>
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| 5 | #include <arpa/nameser.h>
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| 6 | #include <netinet/in.h>
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| 7 |
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| 8 | #ifdef __cplusplus
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| 9 | extern "C" {
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| 10 | #endif
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| 11 |
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| 12 | #define MAXNS 3
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| 13 | #define MAXDFLSRCH 3
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| 14 | #define MAXDNSRCH 6
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| 15 | #define LOCALDOMAINPARTS 2
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| 16 |
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| 17 | #define RES_TIMEOUT 5
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| 18 | #define MAXRESOLVSORT 10
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| 19 | #define RES_MAXNDOTS 15
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| 20 | #define RES_MAXRETRANS 30
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| 21 | #define RES_MAXRETRY 5
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| 22 | #define RES_DFLRETRY 2
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| 23 | #define RES_MAXTIME 65535
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| 24 |
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| 25 | /* unused; purely for broken apps */
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| 26 | typedef struct __res_state {
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| 27 | int retrans;
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| 28 | int retry;
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| 29 | unsigned long options;
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| 30 | int nscount;
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| 31 | struct sockaddr_in nsaddr_list[MAXNS];
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| 32 | # define nsaddr nsaddr_list[0]
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| 33 | unsigned short id;
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| 34 | char *dnsrch[MAXDNSRCH+1];
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| 35 | char defdname[256];
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| 36 | unsigned long pfcode;
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| 37 | unsigned ndots:4;
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| 38 | unsigned nsort:4;
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| 39 | unsigned ipv6_unavail:1;
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| 40 | unsigned unused:23;
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| 41 | struct {
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| 42 | struct in_addr addr;
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| 43 | uint32_t mask;
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| 44 | } sort_list[MAXRESOLVSORT];
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| 45 | void *qhook;
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| 46 | void *rhook;
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| 47 | int res_h_errno;
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| 48 | int _vcsock;
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| 49 | unsigned _flags;
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| 50 | union {
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| 51 | char pad[52];
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| 52 | struct {
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| 53 | uint16_t nscount;
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| 54 | uint16_t nsmap[MAXNS];
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| 55 | int nssocks[MAXNS];
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| 56 | uint16_t nscount6;
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| 57 | uint16_t nsinit;
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| 58 | struct sockaddr_in6 *nsaddrs[MAXNS];
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| 59 | unsigned int _initstamp[2];
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| 60 | } _ext;
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| 61 | } _u;
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| 62 | } *res_state;
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| 63 |
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| 64 | #define __RES 19960801
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| 65 |
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| 66 | #ifndef _PATH_RESCONF
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| 67 | #define _PATH_RESCONF "/etc/resolv.conf"
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| 68 | #endif
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| 69 |
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| 70 | struct res_sym {
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| 71 | int number;
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| 72 | char *name;
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| 73 | char *humanname;
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| 74 | };
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| 75 |
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| 76 | #define RES_F_VC 0x00000001
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| 77 | #define RES_F_CONN 0x00000002
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| 78 | #define RES_F_EDNS0ERR 0x00000004
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| 79 |
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| 80 | #define RES_EXHAUSTIVE 0x00000001
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| 81 |
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| 82 | #define RES_INIT 0x00000001
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| 83 | #define RES_DEBUG 0x00000002
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| 84 | #define RES_AAONLY 0x00000004
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| 85 | #define RES_USEVC 0x00000008
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| 86 | #define RES_PRIMARY 0x00000010
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| 87 | #define RES_IGNTC 0x00000020
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| 88 | #define RES_RECURSE 0x00000040
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| 89 | #define RES_DEFNAMES 0x00000080
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| 90 | #define RES_STAYOPEN 0x00000100
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| 91 | #define RES_DNSRCH 0x00000200
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| 92 | #define RES_INSECURE1 0x00000400
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| 93 | #define RES_INSECURE2 0x00000800
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| 94 | #define RES_NOALIASES 0x00001000
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| 95 | #define RES_USE_INET6 0x00002000
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| 96 | #define RES_ROTATE 0x00004000
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| 97 | #define RES_NOCHECKNAME 0x00008000
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| 98 | #define RES_KEEPTSIG 0x00010000
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| 99 | #define RES_BLAST 0x00020000
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| 100 | #define RES_USEBSTRING 0x00040000
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| 101 | #define RES_NOIP6DOTINT 0x00080000
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| 102 | #define RES_USE_EDNS0 0x00100000
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| 103 | #define RES_SNGLKUP 0x00200000
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| 104 | #define RES_SNGLKUPREOP 0x00400000
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| 105 | #define RES_USE_DNSSEC 0x00800000
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| 106 |
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| 107 | #define RES_DEFAULT (RES_RECURSE|RES_DEFNAMES|RES_DNSRCH|RES_NOIP6DOTINT)
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| 108 |
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| 109 | #define RES_PRF_STATS 0x00000001
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| 110 | #define RES_PRF_UPDATE 0x00000002
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| 111 | #define RES_PRF_CLASS 0x00000004
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| 112 | #define RES_PRF_CMD 0x00000008
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| 113 | #define RES_PRF_QUES 0x00000010
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| 114 | #define RES_PRF_ANS 0x00000020
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| 115 | #define RES_PRF_AUTH 0x00000040
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| 116 | #define RES_PRF_ADD 0x00000080
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| 117 | #define RES_PRF_HEAD1 0x00000100
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| 118 | #define RES_PRF_HEAD2 0x00000200
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| 119 | #define RES_PRF_TTLID 0x00000400
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| 120 | #define RES_PRF_HEADX 0x00000800
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| 121 | #define RES_PRF_QUERY 0x00001000
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| 122 | #define RES_PRF_REPLY 0x00002000
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| 123 | #define RES_PRF_INIT 0x00004000
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| 124 |
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| 125 | struct __res_state *__res_state(void);
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| 126 | #define _res (*__res_state())
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| 127 |
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| 128 | int res_init(void);
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| 129 | int res_query(const char *, int, int, unsigned char *, int);
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| 130 | int res_querydomain(const char *, const char *, int, int, unsigned char *, int);
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| 131 | int res_search(const char *, int, int, unsigned char *, int);
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| 132 | int res_mkquery(int, const char *, int, int, const unsigned char *, int, const unsigned char*, unsigned char *, int);
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| 133 | int res_send(const unsigned char *, int, unsigned char *, int);
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| 134 | int dn_comp(const char *, unsigned char *, int, unsigned char **, unsigned char **);
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| 135 | int dn_expand(const unsigned char *, const unsigned char *, const unsigned char *, char *, int);
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| 136 | int dn_skipname(const unsigned char *, const unsigned char *);
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| 137 |
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| 138 | #ifdef __cplusplus
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| 139 | }
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| 140 | #endif
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| 141 |
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| 142 | #endif
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