kvm_ureadm
static ssize_t kvm_ureadm(kvm_t *, const struct kinfo_proc *, u_long, char *, size_t);
if (kvm_ureadm(kd, p, addr, (char *)*pargv, cc) != cc)
if (kvm_ureadm(kd, p, addr, *pargbuf, kd->nbpg) !=
kvm_ureadm(kd, p, (u_long)ps, (char *)&arginfo,