getnum
getnum(int *value, const char *fmt, ...)
#define getnum(field, dname) \
getnum(const char *strp, int *nump, int min, int max)
getnum(char *nptr, u_int64_t min, u_int64_t max, const char **errstr)
getnum(const char *num, const char *desc, int min, int max)
getnum(char **sp, char *printopt, int *errp)