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author | Laurent Bercot <ska-skaware@skarnet.org> | 2014-12-10 03:05:47 +0000 |
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committer | Laurent Bercot <ska-skaware@skarnet.org> | 2014-12-10 03:05:47 +0000 |
commit | 416ef5e2bf59bb2e45066a1d5d91ac677c0f48e5 (patch) | |
tree | 1c746d673dcec7a8488c6ac51db8245411034376 /src/libs6dns/s6dns_resolvenoq_aaaaa.c | |
download | s6-dns-416ef5e2bf59bb2e45066a1d5d91ac677c0f48e5.tar.xz |
Initial commit
Diffstat (limited to 'src/libs6dns/s6dns_resolvenoq_aaaaa.c')
-rw-r--r-- | src/libs6dns/s6dns_resolvenoq_aaaaa.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/src/libs6dns/s6dns_resolvenoq_aaaaa.c b/src/libs6dns/s6dns_resolvenoq_aaaaa.c new file mode 100644 index 0000000..b280fe0 --- /dev/null +++ b/src/libs6dns/s6dns_resolvenoq_aaaaa.c @@ -0,0 +1,50 @@ +/* ISC license. */ + +#include <skalibs/stralloc.h> +#include <skalibs/genalloc.h> +#include <skalibs/tai.h> +#include <skalibs/ip46.h> +#include <s6-dns/s6dns-constants.h> +#include <s6-dns/s6dns-ip46.h> +#include <s6-dns/s6dns-domain.h> +#include <s6-dns/s6dns-message.h> +#include <s6-dns/s6dns-resolve.h> + +int s6dns_resolvenoq_aaaaa_r (genalloc *ips, char const *name, unsigned int len, s6dns_ip46list_t const *servers, s6dns_debughook_t const *dbh, tain_t const *deadline, tain_t *stamp) +{ + stralloc sa[2] = { STRALLOC_ZERO, STRALLOC_ZERO } ; + s6dns_resolve_t blob[2] ; + if (!s6dns_domain_fromstring_noqualify_encode(&blob[0].q, name, len)) return -1 ; + blob[0].qtype = S6DNS_T_AAAA ; + blob[0].options = S6DNS_O_RECURSIVE ; + blob[0].deadline = *deadline ; + blob[0].parsefunc = &s6dns_message_parse_answer_aaaa ; + blob[0].data = &sa[0] ; + blob[1].q = blob[0].q ; + blob[1].qtype = S6DNS_T_A ; + blob[1].options = S6DNS_O_RECURSIVE ; + blob[1].deadline = *deadline ; + blob[1].parsefunc = &s6dns_message_parse_answer_a ; + blob[1].data = &sa[1] ; + if (!s6dns_resolven_parse_r(blob, 2, servers, dbh, deadline, stamp)) return -1 ; + if (blob[0].status && blob[1].status) return (errno = blob[1].status, 0) ; + if (!genalloc_readyplus(ip46_t, ips, (sa[0].len >> 4) + (sa[1].len >> 2))) + { + stralloc_free(&sa[0]) ; + stralloc_free(&sa[1]) ; + return -1 ; + } + { + unsigned int n = genalloc_len(ip46_t, ips) ; + int e = (!!sa[0].len << 1) | !!sa[1].len ; + register unsigned int i = 0 ; + for (; i < (sa[0].len >> 4) ; i++) + ip46_from_ip6(genalloc_s(ip46_t, ips) + n++, sa[0].s + (i << 4)) ; + for (i = 0 ; i < (sa[1].len >> 2) ; i++) + ip46_from_ip4(genalloc_s(ip46_t, ips) + n++, sa[1].s + (i << 2)) ; + genalloc_setlen(ip46_t, ips, n) ; + stralloc_free(&sa[0]) ; + stralloc_free(&sa[1]) ; + return e ; + } +} |