__printflike
void warnx(const char *, ...) __printflike(1, 2);
void vwarnx(const char *, __va_list) __printflike(1, 0);
__printflike(2,3);
__printflike(2, 0);
__printflike(2,3);
__printflike(2, 0);
__printflike(3,4);
void lreply(int, const char *, ...) __printflike(2, 3);
void reply(int, const char *, ...) __printflike(2, 3);
static void appendf(char **, char *, ...) __printflike(2, 3);
int output_data(const char *, ...) __printflike(1, 2);
void nvlist_add_stringf(nvlist_t *nvl, const char *name, const char *valuefmt, ...) __printflike(3, 4);
void nvlist_add_stringv(nvlist_t *nvl, const char *name, const char *valuefmt, va_list valueap) __printflike(3, 0);
nvpair_t *nvpair_create_stringf(const char *name, const char *valuefmt, ...) __printflike(2, 3);
nvpair_t *nvpair_create_stringv(const char *name, const char *valuefmt, va_list valueap) __printflike(2, 0);
int if_printf(struct ifnet *, const char *, ...) __printflike(2, 3);
int device_printf(device_t dev, const char *, ...) __printflike(2, 3);
__printflike(2, 3);
__printflike(2, 0);
int printf(const char *format, ...) __printflike(1, 2);
int snprintf(char *, size_t, const char *, ...) __printflike(3, 4);
__printflike(3, 0);
const char *name, ...) __printflike(4, 5);
void net80211_printf(const char *fmt, ...) __printflike(1, 2);
__printflike(2, 3);
__printflike(2, 3);