hdparm - hardware
head - noexec. runner
hexdump - noexec. runner
+hexedit - interactive, longterm
hostid - NOFORK
hostname - noexec. talks to network (hostname -d may query DNS)
httpd - daemon
mdev - daemon
mesg - NOFORK
microcom - interactive, longterm
+minips - noexec
mkdir - NOFORK
mkdosfs - needs ^C
mke2fs - needs ^C
nohup - noexec. spawner
nproc - NOFORK
ntpd - daemon
+nuke - noexec
od - runner
openvt - longterm: spawns a child and waits for it
partprobe - noexec. leaks: open+ioctl_or_perror_and_die(BLKRRPART)
renice - noexec. nofork candidate(uses getpwnam, is that ok?)
reset - noexec. spawner (execs "stty")
resize - noexec. changes state (signal handlers)
+resume - noexec
rev - runner
rm - noexec. rm -i interactive
rmdir - NOFORK
rpm - runner
rpm2cpio - runner
rtcwake - longterm: puts system to sleep, optimizing this for speed is pointless
+run-init - spawner, rare, changes state (oh yes), execing may be important to free binary's inode
run-parts - longterm
runlevel - noexec. can be nofork if "endutxent()" is called unconditionally, but too rare to bother?
runsv - daemon
seq - noexec. runner
setarch - noexec. spawner
setconsole - noexec
+setfattr - noexec
setfont - noexec. leaks a lot of stuff
setkeycodes - noexec
setlogcons - noexec