Rich Felker | 57d5fff | 2012-06-15 21:52:53 -0400 | [diff] [blame] | 1 | #ifndef _RESOLV_H |
| 2 | #define _RESOLV_H |
Rich Felker | 0b44a03 | 2011-02-12 00:22:29 -0500 | [diff] [blame] | 3 | |
| 4 | #include <stdint.h> |
| 5 | #include <arpa/nameser.h> |
| 6 | #include <netinet/in.h> |
| 7 | |
| 8 | #ifdef __cplusplus |
| 9 | extern "C" { |
| 10 | #endif |
| 11 | |
| 12 | #define MAXNS 3 |
| 13 | #define MAXDFLSRCH 3 |
| 14 | #define MAXDNSRCH 6 |
| 15 | #define LOCALDOMAINPARTS 2 |
| 16 | |
| 17 | #define RES_TIMEOUT 5 |
| 18 | #define MAXRESOLVSORT 10 |
| 19 | #define RES_MAXNDOTS 15 |
| 20 | #define RES_MAXRETRANS 30 |
| 21 | #define RES_MAXRETRY 5 |
| 22 | #define RES_DFLRETRY 2 |
| 23 | #define RES_MAXTIME 65535 |
| 24 | |
| 25 | /* unused; purely for broken apps */ |
| 26 | typedef struct __res_state { |
| 27 | int retrans; |
| 28 | int retry; |
| 29 | unsigned long options; |
| 30 | int nscount; |
| 31 | struct sockaddr_in nsaddr_list[MAXNS]; |
| 32 | # define nsaddr nsaddr_list[0] |
| 33 | unsigned short id; |
| 34 | char *dnsrch[MAXDNSRCH+1]; |
| 35 | char defdname[256]; |
| 36 | unsigned long pfcode; |
| 37 | unsigned ndots:4; |
| 38 | unsigned nsort:4; |
| 39 | unsigned ipv6_unavail:1; |
| 40 | unsigned unused:23; |
| 41 | struct { |
| 42 | struct in_addr addr; |
| 43 | uint32_t mask; |
| 44 | } sort_list[MAXRESOLVSORT]; |
| 45 | void *qhook; |
| 46 | void *rhook; |
| 47 | int res_h_errno; |
| 48 | int _vcsock; |
| 49 | unsigned _flags; |
| 50 | union { |
| 51 | char pad[52]; |
| 52 | struct { |
| 53 | uint16_t nscount; |
| 54 | uint16_t nsmap[MAXNS]; |
| 55 | int nssocks[MAXNS]; |
| 56 | uint16_t nscount6; |
| 57 | uint16_t nsinit; |
| 58 | struct sockaddr_in6 *nsaddrs[MAXNS]; |
| 59 | unsigned int _initstamp[2]; |
| 60 | } _ext; |
| 61 | } _u; |
| 62 | } *res_state; |
| 63 | |
| 64 | #define __RES 19991006 |
| 65 | |
| 66 | #ifndef _PATH_RESCONF |
| 67 | #define _PATH_RESCONF "/etc/resolv.conf" |
| 68 | #endif |
| 69 | |
| 70 | struct res_sym { |
| 71 | int number; |
| 72 | char *name; |
| 73 | char *humanname; |
| 74 | }; |
| 75 | |
| 76 | #define RES_F_VC 0x00000001 |
| 77 | #define RES_F_CONN 0x00000002 |
| 78 | #define RES_F_EDNS0ERR 0x00000004 |
| 79 | |
| 80 | #define RES_EXHAUSTIVE 0x00000001 |
| 81 | |
| 82 | #define RES_INIT 0x00000001 |
| 83 | #define RES_DEBUG 0x00000002 |
| 84 | #define RES_AAONLY 0x00000004 |
| 85 | #define RES_USEVC 0x00000008 |
| 86 | #define RES_PRIMARY 0x00000010 |
| 87 | #define RES_IGNTC 0x00000020 |
| 88 | #define RES_RECURSE 0x00000040 |
| 89 | #define RES_DEFNAMES 0x00000080 |
| 90 | #define RES_STAYOPEN 0x00000100 |
| 91 | #define RES_DNSRCH 0x00000200 |
| 92 | #define RES_INSECURE1 0x00000400 |
| 93 | #define RES_INSECURE2 0x00000800 |
| 94 | #define RES_NOALIASES 0x00001000 |
| 95 | #define RES_USE_INET6 0x00002000 |
| 96 | #define RES_ROTATE 0x00004000 |
| 97 | #define RES_NOCHECKNAME 0x00008000 |
| 98 | #define RES_KEEPTSIG 0x00010000 |
| 99 | #define RES_BLAST 0x00020000 |
| 100 | #define RES_USEBSTRING 0x00040000 |
| 101 | #define RES_NOIP6DOTINT 0x00080000 |
| 102 | #define RES_USE_EDNS0 0x00100000 |
| 103 | #define RES_SNGLKUP 0x00200000 |
| 104 | #define RES_SNGLKUPREOP 0x00400000 |
| 105 | #define RES_USE_DNSSEC 0x00800000 |
| 106 | |
| 107 | #define RES_DEFAULT (RES_RECURSE|RES_DEFNAMES|RES_DNSRCH|RES_NOIP6DOTINT) |
| 108 | |
| 109 | #define RES_PRF_STATS 0x00000001 |
| 110 | #define RES_PRF_UPDATE 0x00000002 |
| 111 | #define RES_PRF_CLASS 0x00000004 |
| 112 | #define RES_PRF_CMD 0x00000008 |
| 113 | #define RES_PRF_QUES 0x00000010 |
| 114 | #define RES_PRF_ANS 0x00000020 |
| 115 | #define RES_PRF_AUTH 0x00000040 |
| 116 | #define RES_PRF_ADD 0x00000080 |
| 117 | #define RES_PRF_HEAD1 0x00000100 |
| 118 | #define RES_PRF_HEAD2 0x00000200 |
| 119 | #define RES_PRF_TTLID 0x00000400 |
| 120 | #define RES_PRF_HEADX 0x00000800 |
| 121 | #define RES_PRF_QUERY 0x00001000 |
| 122 | #define RES_PRF_REPLY 0x00002000 |
| 123 | #define RES_PRF_INIT 0x00004000 |
| 124 | |
Rich Felker | c3db56c | 2012-01-26 10:53:37 -0500 | [diff] [blame] | 125 | struct __res_state *__res_state(void); |
Rich Felker | 0b44a03 | 2011-02-12 00:22:29 -0500 | [diff] [blame] | 126 | #define _res (*__res_state()) |
| 127 | |
| 128 | struct rrec; |
| 129 | |
| 130 | int res_init(void); |
| 131 | int res_query(const char *, int, int, unsigned char *, int); |
| 132 | int res_querydomain(const char *, const char *, int, int, unsigned char *, int); |
| 133 | int res_search(const char *, int, int, unsigned char *, int); |
| 134 | int res_mkquery(int, const char *, int, int, char *, int, struct rrec *, char *, int); |
| 135 | int res_send(const char *, int, char *, int); |
| 136 | int dn_comp(unsigned char *, unsigned char *, int, unsigned char **, unsigned char *, unsigned char **); |
| 137 | int dn_expand(unsigned char *, unsigned char *, unsigned char *, unsigned char *, int); |
| 138 | |
| 139 | #ifdef __cplusplus |
| 140 | } |
| 141 | #endif |
| 142 | |
| 143 | #endif |