X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;ds=sidebyside;f=src%2Fnetwork%2Fres_query.c;h=506dc231266d9e0795140782c05b8c91368f7ecb;hb=c87d75f2aa6fde49a99cf3287e535a14f354f781;hp=4ebeb102a053389012a9448af03f0050512d742a;hpb=0b44a0315b47dd8eced9f3b7f31580cf14bbfc01;p=musl diff --git a/src/network/res_query.c b/src/network/res_query.c index 4ebeb102..506dc231 100644 --- a/src/network/res_query.c +++ b/src/network/res_query.c @@ -1,20 +1,26 @@ +#define _BSD_SOURCE +#include #include -#include "__dns.h" int res_query(const char *name, int class, int type, unsigned char *dest, int len) { - if (class != 1 || len < 512) + unsigned char q[280]; + int ql = __res_mkquery(0, name, class, type, 0, 0, 0, q, sizeof q); + if (ql < 0) return ql; + int r = __res_send(q, ql, dest, len); + if (r<12) { + h_errno = TRY_AGAIN; return -1; - switch(__dns_doqueries(dest, name, &type, 1)) { - case EAI_NONAME: + } + if ((dest[3] & 15) == 3) { h_errno = HOST_NOT_FOUND; return -1; - case EAI_AGAIN: - h_errno = TRY_AGAIN; - return -1; - case EAI_FAIL: - h_errno = NO_RECOVERY; + } + if ((dest[3] & 15) == 0 && !dest[6] && !dest[7]) { + h_errno = NO_DATA; return -1; } - return 512; + return r; } + +weak_alias(res_query, res_search);