xref: /aosp_15_r20/external/musl/include/resolv.h (revision c9945492fdd68bbe62686c5b452b4dc1be3f8453)
1*c9945492SAndroid Build Coastguard Worker #ifndef _RESOLV_H
2*c9945492SAndroid Build Coastguard Worker #define _RESOLV_H
3*c9945492SAndroid Build Coastguard Worker 
4*c9945492SAndroid Build Coastguard Worker #include <stdint.h>
5*c9945492SAndroid Build Coastguard Worker #include <arpa/nameser.h>
6*c9945492SAndroid Build Coastguard Worker #include <netinet/in.h>
7*c9945492SAndroid Build Coastguard Worker 
8*c9945492SAndroid Build Coastguard Worker #ifdef __cplusplus
9*c9945492SAndroid Build Coastguard Worker extern "C" {
10*c9945492SAndroid Build Coastguard Worker #endif
11*c9945492SAndroid Build Coastguard Worker 
12*c9945492SAndroid Build Coastguard Worker #define MAXNS			3
13*c9945492SAndroid Build Coastguard Worker #define MAXDFLSRCH		3
14*c9945492SAndroid Build Coastguard Worker #define MAXDNSRCH		6
15*c9945492SAndroid Build Coastguard Worker #define LOCALDOMAINPARTS	2
16*c9945492SAndroid Build Coastguard Worker 
17*c9945492SAndroid Build Coastguard Worker #define RES_TIMEOUT		5
18*c9945492SAndroid Build Coastguard Worker #define MAXRESOLVSORT		10
19*c9945492SAndroid Build Coastguard Worker #define RES_MAXNDOTS		15
20*c9945492SAndroid Build Coastguard Worker #define RES_MAXRETRANS		30
21*c9945492SAndroid Build Coastguard Worker #define RES_MAXRETRY		5
22*c9945492SAndroid Build Coastguard Worker #define RES_DFLRETRY		2
23*c9945492SAndroid Build Coastguard Worker #define RES_MAXTIME		65535
24*c9945492SAndroid Build Coastguard Worker 
25*c9945492SAndroid Build Coastguard Worker /* unused; purely for broken apps */
26*c9945492SAndroid Build Coastguard Worker typedef struct __res_state {
27*c9945492SAndroid Build Coastguard Worker 	int retrans;
28*c9945492SAndroid Build Coastguard Worker 	int retry;
29*c9945492SAndroid Build Coastguard Worker 	unsigned long options;
30*c9945492SAndroid Build Coastguard Worker 	int nscount;
31*c9945492SAndroid Build Coastguard Worker 	struct sockaddr_in nsaddr_list[MAXNS];
32*c9945492SAndroid Build Coastguard Worker # define nsaddr	nsaddr_list[0]
33*c9945492SAndroid Build Coastguard Worker 	unsigned short id;
34*c9945492SAndroid Build Coastguard Worker 	char *dnsrch[MAXDNSRCH+1];
35*c9945492SAndroid Build Coastguard Worker 	char defdname[256];
36*c9945492SAndroid Build Coastguard Worker 	unsigned long pfcode;
37*c9945492SAndroid Build Coastguard Worker 	unsigned ndots:4;
38*c9945492SAndroid Build Coastguard Worker 	unsigned nsort:4;
39*c9945492SAndroid Build Coastguard Worker 	unsigned ipv6_unavail:1;
40*c9945492SAndroid Build Coastguard Worker 	unsigned unused:23;
41*c9945492SAndroid Build Coastguard Worker 	struct {
42*c9945492SAndroid Build Coastguard Worker 		struct in_addr addr;
43*c9945492SAndroid Build Coastguard Worker 		uint32_t mask;
44*c9945492SAndroid Build Coastguard Worker 	} sort_list[MAXRESOLVSORT];
45*c9945492SAndroid Build Coastguard Worker 	void *qhook;
46*c9945492SAndroid Build Coastguard Worker 	void *rhook;
47*c9945492SAndroid Build Coastguard Worker 	int res_h_errno;
48*c9945492SAndroid Build Coastguard Worker 	int _vcsock;
49*c9945492SAndroid Build Coastguard Worker 	unsigned _flags;
50*c9945492SAndroid Build Coastguard Worker 	union {
51*c9945492SAndroid Build Coastguard Worker 		char pad[52];
52*c9945492SAndroid Build Coastguard Worker 		struct {
53*c9945492SAndroid Build Coastguard Worker 			uint16_t		nscount;
54*c9945492SAndroid Build Coastguard Worker 			uint16_t		nsmap[MAXNS];
55*c9945492SAndroid Build Coastguard Worker 			int			nssocks[MAXNS];
56*c9945492SAndroid Build Coastguard Worker 			uint16_t		nscount6;
57*c9945492SAndroid Build Coastguard Worker 			uint16_t		nsinit;
58*c9945492SAndroid Build Coastguard Worker 			struct sockaddr_in6	*nsaddrs[MAXNS];
59*c9945492SAndroid Build Coastguard Worker 			unsigned int		_initstamp[2];
60*c9945492SAndroid Build Coastguard Worker 		} _ext;
61*c9945492SAndroid Build Coastguard Worker 	} _u;
62*c9945492SAndroid Build Coastguard Worker } *res_state;
63*c9945492SAndroid Build Coastguard Worker 
64*c9945492SAndroid Build Coastguard Worker #define	__RES	19960801
65*c9945492SAndroid Build Coastguard Worker 
66*c9945492SAndroid Build Coastguard Worker #ifndef _PATH_RESCONF
67*c9945492SAndroid Build Coastguard Worker #define _PATH_RESCONF        "/etc/resolv.conf"
68*c9945492SAndroid Build Coastguard Worker #endif
69*c9945492SAndroid Build Coastguard Worker 
70*c9945492SAndroid Build Coastguard Worker struct res_sym {
71*c9945492SAndroid Build Coastguard Worker 	int number;
72*c9945492SAndroid Build Coastguard Worker 	char *name;
73*c9945492SAndroid Build Coastguard Worker 	char *humanname;
74*c9945492SAndroid Build Coastguard Worker };
75*c9945492SAndroid Build Coastguard Worker 
76*c9945492SAndroid Build Coastguard Worker #define	RES_F_VC	0x00000001
77*c9945492SAndroid Build Coastguard Worker #define	RES_F_CONN	0x00000002
78*c9945492SAndroid Build Coastguard Worker #define RES_F_EDNS0ERR	0x00000004
79*c9945492SAndroid Build Coastguard Worker 
80*c9945492SAndroid Build Coastguard Worker #define	RES_EXHAUSTIVE	0x00000001
81*c9945492SAndroid Build Coastguard Worker 
82*c9945492SAndroid Build Coastguard Worker #define RES_INIT	0x00000001
83*c9945492SAndroid Build Coastguard Worker #define RES_DEBUG	0x00000002
84*c9945492SAndroid Build Coastguard Worker #define RES_AAONLY	0x00000004
85*c9945492SAndroid Build Coastguard Worker #define RES_USEVC	0x00000008
86*c9945492SAndroid Build Coastguard Worker #define RES_PRIMARY	0x00000010
87*c9945492SAndroid Build Coastguard Worker #define RES_IGNTC	0x00000020
88*c9945492SAndroid Build Coastguard Worker #define RES_RECURSE	0x00000040
89*c9945492SAndroid Build Coastguard Worker #define RES_DEFNAMES	0x00000080
90*c9945492SAndroid Build Coastguard Worker #define RES_STAYOPEN	0x00000100
91*c9945492SAndroid Build Coastguard Worker #define RES_DNSRCH	0x00000200
92*c9945492SAndroid Build Coastguard Worker #define	RES_INSECURE1	0x00000400
93*c9945492SAndroid Build Coastguard Worker #define	RES_INSECURE2	0x00000800
94*c9945492SAndroid Build Coastguard Worker #define	RES_NOALIASES	0x00001000
95*c9945492SAndroid Build Coastguard Worker #define	RES_USE_INET6	0x00002000
96*c9945492SAndroid Build Coastguard Worker #define RES_ROTATE	0x00004000
97*c9945492SAndroid Build Coastguard Worker #define	RES_NOCHECKNAME	0x00008000
98*c9945492SAndroid Build Coastguard Worker #define	RES_KEEPTSIG	0x00010000
99*c9945492SAndroid Build Coastguard Worker #define	RES_BLAST	0x00020000
100*c9945492SAndroid Build Coastguard Worker #define RES_USEBSTRING	0x00040000
101*c9945492SAndroid Build Coastguard Worker #define RES_NOIP6DOTINT	0x00080000
102*c9945492SAndroid Build Coastguard Worker #define RES_USE_EDNS0	0x00100000
103*c9945492SAndroid Build Coastguard Worker #define RES_SNGLKUP	0x00200000
104*c9945492SAndroid Build Coastguard Worker #define RES_SNGLKUPREOP	0x00400000
105*c9945492SAndroid Build Coastguard Worker #define RES_USE_DNSSEC	0x00800000
106*c9945492SAndroid Build Coastguard Worker 
107*c9945492SAndroid Build Coastguard Worker #define RES_DEFAULT	(RES_RECURSE|RES_DEFNAMES|RES_DNSRCH|RES_NOIP6DOTINT)
108*c9945492SAndroid Build Coastguard Worker 
109*c9945492SAndroid Build Coastguard Worker #define RES_PRF_STATS	0x00000001
110*c9945492SAndroid Build Coastguard Worker #define RES_PRF_UPDATE	0x00000002
111*c9945492SAndroid Build Coastguard Worker #define RES_PRF_CLASS   0x00000004
112*c9945492SAndroid Build Coastguard Worker #define RES_PRF_CMD	0x00000008
113*c9945492SAndroid Build Coastguard Worker #define RES_PRF_QUES	0x00000010
114*c9945492SAndroid Build Coastguard Worker #define RES_PRF_ANS	0x00000020
115*c9945492SAndroid Build Coastguard Worker #define RES_PRF_AUTH	0x00000040
116*c9945492SAndroid Build Coastguard Worker #define RES_PRF_ADD	0x00000080
117*c9945492SAndroid Build Coastguard Worker #define RES_PRF_HEAD1	0x00000100
118*c9945492SAndroid Build Coastguard Worker #define RES_PRF_HEAD2	0x00000200
119*c9945492SAndroid Build Coastguard Worker #define RES_PRF_TTLID	0x00000400
120*c9945492SAndroid Build Coastguard Worker #define RES_PRF_HEADX	0x00000800
121*c9945492SAndroid Build Coastguard Worker #define RES_PRF_QUERY	0x00001000
122*c9945492SAndroid Build Coastguard Worker #define RES_PRF_REPLY	0x00002000
123*c9945492SAndroid Build Coastguard Worker #define RES_PRF_INIT	0x00004000
124*c9945492SAndroid Build Coastguard Worker 
125*c9945492SAndroid Build Coastguard Worker struct __res_state *__res_state(void);
126*c9945492SAndroid Build Coastguard Worker #define _res (*__res_state())
127*c9945492SAndroid Build Coastguard Worker 
128*c9945492SAndroid Build Coastguard Worker int res_init(void);
129*c9945492SAndroid Build Coastguard Worker int res_query(const char *, int, int, unsigned char *, int);
130*c9945492SAndroid Build Coastguard Worker int res_querydomain(const char *, const char *, int, int, unsigned char *, int);
131*c9945492SAndroid Build Coastguard Worker int res_search(const char *, int, int, unsigned char *, int);
132*c9945492SAndroid Build Coastguard Worker int res_mkquery(int, const char *, int, int, const unsigned char *, int, const unsigned char*, unsigned char *, int);
133*c9945492SAndroid Build Coastguard Worker int res_send(const unsigned char *, int, unsigned char *, int);
134*c9945492SAndroid Build Coastguard Worker int dn_comp(const char *, unsigned char *, int, unsigned char **, unsigned char **);
135*c9945492SAndroid Build Coastguard Worker int dn_expand(const unsigned char *, const unsigned char *, const unsigned char *, char *, int);
136*c9945492SAndroid Build Coastguard Worker int dn_skipname(const unsigned char *, const unsigned char *);
137*c9945492SAndroid Build Coastguard Worker 
138*c9945492SAndroid Build Coastguard Worker #ifdef __cplusplus
139*c9945492SAndroid Build Coastguard Worker }
140*c9945492SAndroid Build Coastguard Worker #endif
141*c9945492SAndroid Build Coastguard Worker 
142*c9945492SAndroid Build Coastguard Worker #endif
143