src/dns/dns_lookup.c

308 static struct __res_state dns_res_state;
321 #define dns_res_state		_res
401     if ((len = DNS_RES_NMKQUERY(&dns_res_state,
405 	DNS_SET_H_ERRNO(&dns_res_state, NO_RECOVERY);
409     } else if ((len = DNS_RES_NSEND(&dns_res_state,
411 	DNS_SET_H_ERRNO(&dns_res_state, TRY_AGAIN);
418 	    DNS_SET_H_ERRNO(&dns_res_state, HOST_NOT_FOUND);
422 		DNS_SET_H_ERRNO(&dns_res_state, 0);
424 		DNS_SET_H_ERRNO(&dns_res_state, NO_DATA);
427 	    DNS_SET_H_ERRNO(&dns_res_state, TRY_AGAIN);
430 	    DNS_SET_H_ERRNO(&dns_res_state, NO_RECOVERY);
464     len = DNS_RES_NSEARCH(&dns_res_state, name, class, type, answer, anslen);
466     if (len < 0 && DNS_GET_H_ERRNO(&dns_res_state) == 0) {
467 	DNS_SET_H_ERRNO(&dns_res_state, TRY_AGAIN);
474 	DNS_SET_H_ERRNO(&dns_res_state, 0);
476 	       && NOT_FOUND_H_ERRNO(DNS_GET_H_ERRNO(&dns_res_state))) {
504     if ((dns_res_state.options & RES_INIT) == 0
505 	&& DNS_RES_NINIT(&dns_res_state) < 0) {
544     saved_options = (dns_res_state.options & SAVE_FLAGS);
551 	dns_res_state.options &= ~saved_options;
552 	dns_res_state.options |= flags;
568 	dns_res_state.options &= ~flags;
569 	dns_res_state.options |= saved_options;
574 	if (DNS_GET_H_ERRNO(&dns_res_state) != 0) {
579 			     dns_strerror(DNS_GET_H_ERRNO(&dns_res_state)));
583 			 dns_strerror(DNS_GET_H_ERRNO(&dns_res_state)));
584 	    switch (DNS_GET_H_ERRNO(&dns_res_state)) {
614 		  len, dns_strerror(DNS_GET_H_ERRNO(&dns_res_state)));
643     if (DNS_GET_H_ERRNO(&dns_res_state) == 0) {
649 		  dns_strerror(DNS_GET_H_ERRNO(&dns_res_state)));
1043 	DNS_SET_H_ERRNO(&dns_res_state, HOST_NOT_FOUND);
1057 	DNS_SET_H_ERRNO(&dns_res_state, HOST_NOT_FOUND);
1115 	    DNS_SET_H_ERRNO(&dns_res_state, NO_DATA);
1121 	    DNS_SET_H_ERRNO(&dns_res_state, NO_DATA);
1190 	hpref_h_errno = DNS_GET_H_ERRNO(&dns_res_state); \
1200 	DNS_SET_H_ERRNO(&dns_res_state, hpref_h_errno); \
1297     return (DNS_GET_H_ERRNO(&dns_res_state));