sysctl_sensors
int sysctl_sensors(char *, char **, int *, int, int *);
len = sysctl_sensors(string, &bufp, mib, flags, &type);
int sysctl_sensors(int *, u_int, void *, size_t *, void *, size_t);
return (sysctl_sensors(name + 1, namelen - 1, oldp, oldlenp,