typedef struct adns__query *adns_query;
typedef enum {
- adns_if_noenv= 0x0001, /* do not look at environment */
- adns_if_noerrprint= 0x0002, /* never print output to stderr (_debug overrides) */
- adns_if_noserverwarn= 0x0004, /* do not warn to stderr about duff nameservers etc */
- adns_if_debug= 0x0008, /* enable all output to stderr plus debug msgs */
- adns_if_noautosys= 0x0010, /* do not make syscalls at every opportunity */
- adns_if_eintr= 0x0020, /* allow _wait and _synchronous to return EINTR */
+ adns_if_noenv= 0x0001, /* do not look at environment */
+ adns_if_noerrprint= 0x0002, /* never print output to stderr (_debug overrides) */
+ adns_if_noserverwarn= 0x0004, /* do not warn to stderr about duff nameservers etc */
+ adns_if_debug= 0x0008, /* enable all output to stderr plus debug msgs */
+ adns_if_noautosys= 0x0010, /* do not make syscalls at every opportunity */
+ adns_if_eintr= 0x0020, /* allow _wait and _synchronous to return EINTR */
+
+ /* Flags for address formatting, in both init and query. Do not use directly. */
+ adns__iqaf_keepv4= 0x01000, /* If clear, any IPv4s will be mapped to AF_INET6 */
+ adns__iqaf_weakv6= 0x02000, /* `Prefer IPv6 less' - depends on other flags */
+ adns__iqaf_only= 0x04000, /* Return only one kind of address */
+ adns__iqaf_override= 0x08000, /* In query flags, means to ignore init flags */
+ adns__iqaf_mask= 0x07000, /* Mask of flags that _override overrides */
+
+ /* Actual address formatting options. These set the default. Do not combine them.
+ * Meanings are:
+ * _v6first: Query for AAAA; if no AAAA then query for A. Return all as AF_INET6.
+ * _v6first: Same, but return IPv6 as AF_INET6 and IPv4 as AF_INET.
+ * _both: Query for both A and AAAA, return all addresses as AF_INET6.
+ * _bothraw: Same, but return IPv6 as AF_INET6 and IPv4 as AF_INET.
+ * _v4only: Query only for A, and return as AF_INET.
+ * _v6only: Query only for AAAA, and return as AF_INET6.
+ * If none is specified, the default is _v6first.
+ */
+ adns_if_addr_v6first= 0,
+ adns_if_addr_v6firstraw= adns__iqaf_keepv4,
+ adns_if_addr_both= adns__iqaf_weakv6,
+ adns_if_addr_bothraw= adns__iqaf_weakv6|adns__iqaf_keepv4,
+ adns_if_addr_v4only= adns__iqaf_only|adns__iqaf_weakv6|adns__iqaf_keepv4,
+ adns_if_addr_v6only= adns__iqaf_only,
+
+ adns__if_internalmask= 0x7fff0000
} adns_initflags;
typedef enum {
- adns_qf_search= 0x000001, /* use the searchlist */
- adns_qf_usevc= 0x000002, /* use a virtual circuit (TCP connection) */
- adns_qf_quoteok_query= 0x000010, /* allow quote-requiring chars in query domain */
- adns_qf_quoteok_cname= 0x000020, /* allow ... in CNAME we go via */
- adns_qf_quoteok_anshost= 0x000040, /* allow ... in answers expected to be hostnames */
- adns_qf_cname_loose= 0x000100, /* allow refs to CNAMEs - without, get _s_cname */
- adns_qf_cname_forbid= 0x000200, /* don't follow CNAMEs, instead give _s_cname */
- adns__qf_internalmask= 0x0ff000
+ adns_qf_search= 0x0000001, /* use the searchlist */
+ adns_qf_usevc= 0x0000002, /* use a virtual circuit (TCP connection) */
+ adns_qf_quoteok_query= 0x0000010, /* allow quote-requiring chars in query domain */
+ adns_qf_quoteok_cname= 0x0000020, /* allow ... in CNAME we go via */
+ adns_qf_quoteok_anshost= 0x0000040, /* allow ... in answers expected to be hostnames */
+ adns_qf_cname_loose= 0x0000100, /* allow refs to CNAMEs - without, get _s_cname */
+ adns_qf_cname_forbid= 0x0000200, /* don't follow CNAMEs, instead give _s_cname */
+
+ /* Address formatting options. They have the same meaning as the corresponding
+ * adns_if_... options. Do not combine with other _if_addr/_qf_addr options.
+ * If a _qf_addr is specified then the _if_addr are irrelevant, otherwise the
+ * _if_addr are used.
+ */
+ adns_qf_addr_both= adns__iqaf_override|adns_if_addr_both,
+ adns_qf_addr_bothraw= adns__iqaf_override|adns_if_addr_bothraw,
+ adns_qf_addr_v6first= adns__iqaf_override|adns_if_addr_v6first,
+ adns_qf_addr_v6firstraw= adns__iqaf_override|adns_if_addr_v6firstraw,
+ adns_qf_addr_v4only= adns__iqaf_override|adns_if_addr_v4only,
+ adns_qf_addr_v6only= adns__iqaf_override|adns_if_addr_v6only,
+
+ adns__qf_internalmask= 0x7fff0000
} adns_queryflags;
typedef enum {
- adns__rrt_typemask= 0x0ffff,
- adns__qtf_deref= 0x10000, /* dereference domains and perhaps produce extra data */
- adns__qtf_mail822= 0x20000, /* make mailboxes be in RFC822 rcpt field format */
+ adns__rrt_typemask= 0x0ffff,
+ adns__qtf_deref= 0x10000, /* dereference domains and perhaps produce extra data */
+ adns__qtf_mail822= 0x20000, /* make mailboxes be in RFC822 rcpt field format */
+ adns__qtf_nostdquery= 0x40000, /* do not make normal initial query */
+ adns__qtf_mask= 0x07fff0000,
adns_r_none= 0,
adns_r_rp_raw= 17,
adns_r_rp= adns_r_rp_raw|adns__qtf_mail822,
- adns_r_addr= adns_r_a|adns__qtf_deref
+ adns_r_aaaa= 28,
+
+ adns_r_addr= adns_r_a|adns__qtf_nostdquery
} adns_rrtype;
int len;
union {
struct sockaddr sa;
- struct sockaddr_in inet;
+ struct sockaddr_in inet; /* port field will be zero */
+ struct sockaddr_in6 inet6; /* port field will be zero */
} addr;
} adns_rr_addr;
adns_rr_intstr *(*manyistr); /* txt (list of strings ends with i=-1, str=0) */
adns_rr_addr *addr; /* addr */
struct in_addr *inaddr; /* a */
+ struct in_addr6 *inaddr6; /* aaaa */
adns_rr_hostaddr *hostaddr; /* ns */
adns_rr_intstrpair *intstrpair; /* hinfo */
adns_rr_strpair *strpair; /* rp, rp_raw */
adns_answer **answer_r,
void **context_r);
/* fixme: include TTL in answer somehow */
-/* fixme: multithreading/locking */
/* fixme: easy way to get lists of fd's */
/* fixme: IPv6 */
~mdw / adns / blobdiff