171 res_hnok(const char *dn) {  in res_hnok()  argument
172 	int pch = PERIOD, ch = *dn++;  in res_hnok()
175 		int nch = *dn++;  in res_hnok()
199 res_ownok(const char *dn) {  in res_ownok()  argument
200 	if (asterchar(dn[0])) {  in res_ownok()
201 		if (periodchar(dn[1]))  in res_ownok()
202 			return (res_hnok(dn+2));  in res_ownok()
203 		if (dn[1] == '\0')  in res_ownok()
206 	return (res_hnok(dn));  in res_ownok()
214 res_mailok(const char *dn) {  in res_mailok()  argument
218 	if (*dn == '\0')  in res_mailok()
222 	while ((ch = *dn++) != '\0') {  in res_mailok()
233 		return (res_hnok(dn));  in res_mailok()
242 res_dnok(const char *dn) {  in res_dnok()  argument
245 	while ((ch = *dn++) != '\0')  in res_dnok()