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#include <resolv.h> #include <netdb.h> int res_query(const char *name, int class, int type, unsigned char *dest, int len) { unsigned char q[280]; int ql = __res_mkquery(0, name, class, type, 0, 0, 0, q, sizeof q); if (ql < 0) return ql; return __res_send(q, ql, dest, len); } weak_alias(res_query, res_search);