access
alarm
chdir
chown
close
confstr
dup
dup2
_exit
execl
execle
execlp
execv
execve
execvp
faccessat
fchdir
fchown
fchownat
fexecve
fork
fpathconf
ftruncate
getcwd
getegid
geteuid
getgid
getgroups
gethostname
getlogin
getlogin_r
getopt
getpgid
getpgrp
getpid
getppid
getsid
getuid
isatty
lchown
link
linkat
lseek
pathconf
pause
pipe
pread
pwrite
read
readlink
readlinkat
rmdir
setegid
seteuid
setgid
setpgid
setsid
setuid
sleep
symlink
symlinkat
sysconf
tcgetpgrp
tcsetpgrp
truncate
ttyname
ttyname_r
unlink
unlinkat
write
optarg
opterr
optind
optopt