236 	statp->_u._ext.ext = malloc(sizeof(*statp->_u._ext.ext));  in __res_vinit()
237 	if (statp->_u._ext.ext != NULL) {  in __res_vinit()
238 	        memset(statp->_u._ext.ext, 0, sizeof(*statp->_u._ext.ext));  in __res_vinit()
239 		statp->_u._ext.ext->nsaddrs[0].sin = statp->nsaddr;  in __res_vinit()
240 		strcpy(statp->_u._ext.ext->nsuffix, "ip6.arpa");  in __res_vinit()
241 		strcpy(statp->_u._ext.ext->nsuffix2, "ip6.int");  in __res_vinit()
356 		        sizeof(statp->_u._ext.ext->nsaddrs[0]);  in __res_vinit()
370 			    if (statp->_u._ext.ext != NULL) {  in __res_vinit()
371 				memcpy(&statp->_u._ext.ext->nsaddrs[nserv],  in __res_vinit()
496 	struct __res_state_ext *ext = statp->_u._ext.ext;  in res_setoptions()  local
569 			if (ext == NULL)  in res_setoptions()
572 			i = MIN(strcspn(cp, " \t"), sizeof(ext->nsuffix) - 1);  in res_setoptions()
573 			strncpy(ext->nsuffix, cp, (size_t)i);  in res_setoptions()
574 			ext->nsuffix[i] = '\0';  in res_setoptions()
577 			if (ext == NULL)  in res_setoptions()
580 			i = MIN(strcspn(cp, " \t"), sizeof(ext->nsuffix2) - 1);  in res_setoptions()
581 			strncpy(ext->nsuffix2, cp, (size_t)i);  in res_setoptions()
582 			ext->nsuffix2[i] = '\0';  in res_setoptions()
648 	if (statp->_u._ext.ext != NULL)  in res_ndestroy()
649 		free(statp->_u._ext.ext);  in res_ndestroy()
651 	statp->_u._ext.ext = NULL;  in res_ndestroy()
657 	if (statp->_u._ext.ext)  in res_get_nibblesuffix()
658 		return (statp->_u._ext.ext->nsuffix);  in res_get_nibblesuffix()
665 	if (statp->_u._ext.ext)  in res_get_nibblesuffix2()
666 		return (statp->_u._ext.ext->nsuffix2);  in res_get_nibblesuffix2()
687 			if (statp->_u._ext.ext)  in res_setservers()
688 				memcpy(&statp->_u._ext.ext->nsaddrs[nserv],  in res_setservers()
701 			if (statp->_u._ext.ext)  in res_setservers()
702 				memcpy(&statp->_u._ext.ext->nsaddrs[nserv],  in res_setservers()
730 		if (statp->_u._ext.ext)  in res_getservers()
731 			family = statp->_u._ext.ext->nsaddrs[i].sin.sin_family;  in res_getservers()
738 			if (statp->_u._ext.ext)  in res_getservers()
740 				       &statp->_u._ext.ext->nsaddrs[i],  in res_getservers()
750 			if (statp->_u._ext.ext)  in res_getservers()
752 				       &statp->_u._ext.ext->nsaddrs[i],  in res_getservers()