153 res_hnok(const char *dn) {  in res_hnok()  argument
154 	int pch = PERIOD, ch = *dn++;  in res_hnok()
157 		int nch = *dn++;  in res_hnok()
181 res_ownok(const char *dn) {  in res_ownok()  argument
182 	if (asterchar(dn[0])) {  in res_ownok()
183 		if (periodchar(dn[1]))  in res_ownok()
184 			return (res_hnok(dn+2));  in res_ownok()
185 		if (dn[1] == '\0')  in res_ownok()
188 	return (res_hnok(dn));  in res_ownok()
196 res_mailok(const char *dn) {  in res_mailok()  argument
200 	if (*dn == '\0')  in res_mailok()
204 	while ((ch = *dn++) != '\0') {  in res_mailok()
215 		return (res_hnok(dn));  in res_mailok()
224 res_dnok(const char *dn) {  in res_dnok()  argument
227 	while ((ch = *dn++) != '\0')  in res_dnok()