To get an overview what Gnulib can do to better support the POSIX-1.2024 APIs,
I went through the POSIX.1-2024 PDF and collected references to "Issue 8"
and "Austin Group Defect".
The result are two files:
- A list of header files and functions for which the documentation might
need to change. Attached: posix-2024-doc.TODO
- A list of header files and functions for which the Gnulib may help
improve the portability. Attached: posix-2024-impl.TODO
I plan to add these files to the maint-tools/ repository, so that we can
track progress. For the moment, as we don't have the HTML formatted
POSIX yet, we cannot work on the documentation part. But you can look at
the posix-2024-impl.TODO to figure areas which you would like to work on
(or at least start to evaluate the feasibility in Gnulib).
Bruno
Gnulib documentation tasks related to POSIX.1-2024
==================================================
Documentation
-------------
Update documentation regarding new header files:
-- Borrowed from ISO C:
<stdalign.h>
<stdatomic.h>
<stdnoreturn.h>
<threads.h>
<uchar.h>
-- Originating in POSIX:
<devctl.h>
<endian.h>
<libintl.h>
Update documentation regarding modified existing header files
(see CHANGE HISTORY > Issue 8):
<arpa/inet.h>
<complex.h>
<ctype.h>
<dirent.h>
<dlfcn.h>
<errno.h>
<fcntl.h>
<float.h>
<fnmatch.h>
<ftw.h>
<langinfo.h>
<limits.h>
<locale.h>
<math.h>
<mqueue.h>
<netdb.h>
<netinet.h>
<poll.h>
<pthread.h>
<regex.h>
<search.h>
<semaphore.h>
<setjmp.h>
<signal.h>
<spawn.h>
<stdbool.h>
<stddef.h>
<stdint.h>
<stdio.h>
<stdlib.h>
<string.h>
<strings.h>
<sys/mman.h>
<sys/resource.h>
<sys/select.h>
<sys/shm.h>
<sys/socket.h>
<sys/stat.h>
<sys/time.h>
<sys/types.h>
<sys/un.h>
<sys/wait.h>
<syslog.h>
<tar.h>
<termios.h>
<tgmath.h>
<time.h>
<unistd.h>
<wchar.h>
<wctype.h>
<wordexp.h>
Update documentation regarding new functions.
-- Borrowed from ISO C:
CMPLX, CMPLXF, CMPLXL
aligned_alloc
at_quick_exit
atomic_compare_exchange_strong
atomic_compare_exchange_strong_explicit
atomic_compare_exchange_weak
atomic_compare_exchange_weak_explicit
atomic_exchange
atomic_exchange_explicit
atomic_fetch_add
atomic_fetch_add_explicit
atomic_fetch_and
atomic_fetch_and_explicit
atomic_fetch_or
atomic_fetch_or_explicit
atomic_fetch_sub
atomic_fetch_sub_explicit
atomic_fetch_xor
atomic_fetch_xor_explicit
atomic_flag_clear
atomic_flag_clear_explicit
atomic_flag_test_and_set
atomic_flag_test_and_set_explicit
atomic_init
atomic_is_lock_free
atomic_load
atomic_load_explicit
atomic_signal_fence
atomic_thread_fence
atomic_store
atomic_store_explicit
c16rtomb
c32rtomb
call_once
cnd_broadcast
cnd_signal
cnd_destroy
cnd_init
cnd_timedwait
cnd_wait
kill_dependency
mbrtoc16
mbrtoc32
mtx_destroy
mtx_init
mtx_lock
mtx_timedlock
mtx_trylock
mtx_unlock
quick_exit
thrd_create
thrd_current
thrd_detach
thrd_equal
thrd_exit
thrd_join
thrd_sleep
thrd_yield
tss_create
tss_delete
tss_get
tss_set
-- Originating in POSIX:
be16toh
be32toh
be64toh
htobe16
htobe32
htobe64
htole16
htole32
htole64
le16toh
le32toh
le64toh
bindtextdomain
bind_textdomain_codeset
textdomain
dladdr
ffsl, ffsll
getentropy
getlocalename_l
getresgid
getresuid
dgettext
dgettext_l
dcgettext
dcgettext_l
dngettext
dngettext_l
dcngettext
dcngettext_l
gettext
gettext_l
ngettext
ngettext_l
in6addr_any
in6addr_loopback
memmem
posix_close
posix_devctl
posix_getdents
posix_spawn_file_actions_addchdir
posix_spawn_file_actions_addfchdir
secure_getenv
setresgid
setresuid
sig2str
str2sig
strlcat
strlcpy
tcgetwinsize
tcsetwinsize
timespec_get
wcslcat
wcslcpy
_Fork
Update documentation regarding modified functions
(see CHANGE HISTORY > Issue 8):
_Exit, exit
abort
abs
accept, accept4
aio_fsync
aio_suspend
aio_write
alarm
asctime
asin, asinf, asinl
asinh, asinhf, asinhl
atan, atanf, atanl
atan2, atan2f, atan2l
atanh, atanhf, atanhl
atexit
atoi
basename
bind
cabs, cabsf, cabsl
cacos, cacosf, cacosl
cacosh, cacoshf, cacoshl
calloc
carg, cargf, cargl
casin, casinf, casinl
casinh, casinhf, casinhl
catan, catanf, catanl
catanh, catanhf, catanhl
catopen
ccos, ccosf, ccosl
ccosh, ccoshf, ccoshl
ceil, ceilf, ceill
cexp, cexpf, cexpl
chmod, fchmodat
clock
clock_getres
clog, clogf, clogl
close, posix_close
closedir
closelog, openlog, setlogmask, syslog
confstr
connect
copysign, copysignf, copysignl
cpow, cpowf, cpowl
creat
crypt
csin, csinf, csinl
csinh, csinhf, csinhl
csqrt, csqrtf, csqrtl
ctan, ctanf, ctanl
ctanh, ctanhf, ctanhl
ctime
dbm_clearerr, dbm_close, dbm_delete, dmb_error, dmb_fetch, dbm_firstkey,
dbm_nextkey, dbm_open, dbm_store
dirfd
dirname
dlclose
dlerror
dlopen
dlsym
drand48, erand48, jrand48, lcong48, lrand48, mrand48, nrand48, seed48, srand48
dup, dup2, dup3
encrypt
endhostent, gethostent, sethostent
endnetent, getnetbyaddr, getnetbyname, getnetent, setnetent
endprotoent, getprotobyname, getprotobynumber, getprotoent, setprotoent
endservent, getservbyname, getservbyport, getservent, setservent
erf, erff, erfl
errno
execl, execle, execlp, execv, execve, execvp, fexecve
exit
expm1, expm1f, expm1l
fabs, fabsf, fabsl
fchmod
fchown
fclose
fcntl
fdatasync
fdopen
fdopendir, opendir
fflush
fgetc
fgets
fgetwc
fgetws
flockfile, ftrylockfile, funlockfile
floor, floorf, floorl
fmax, fmaxf, fmaxl
fmemopen
fmin, fminf, fminl
fmod, fmodf, fmodl
fnmatch
fopen
fork, _Fork
fpathconf, pathconf
asprintf, dprintf, fprintf, printf, snprintf, sprintf
fputc
fputwc
fread
free
freeaddrinfo, getaddrinfo
freelocale
freopen
frexp, frexpf, frexpl
fscanf, scanf, sscanf
fseek, fseeko
fsetpos
fstatat, lstat, stat
fsync
ftell, ftello
ftruncate
futimens, utimensat, utimes
fwprintf, swprintf, wprintf
fwrite
fwscanf, swscanf, wscanf
getdate
getdelim, getline
getegid
getenv, secure_getenv
geteuid
getgid
getgrgid, getgrgid_r
getgrnam, getgrnam_r
getgroups
getlogin, getlogin_r
getopt, optarg, opterr, optind, optopt
getpeername
getpgrp
getpwnam, getpwnam_r
getpwuid, getpwuid_r
getrlimit, setrlimit
getrusage
getsockname
getsubopt
getuid
glob, globfree
gmtime, gmtime_r
grantpt
htonl, htons, ntohl, ntohs
iconv
iconv_open
if_freenameindex
ilogb, ilogbf, ilogbl
imaxabs
inet_addr, inet_ntoa
inet_ntop, inet_pton
initstate, setstate, srandom
isgreater, isgreaterequal, isless, islessequal, islessgreater
iswblank, iswblank_l
iswctype, iswctype_l
j0, j1, jn
kill
labs, llabs
lgamma, lgammaf, lgammal, signgam
link, linkat
lio_listio
localeconv
localtime, localtime_r
lockf
log1p, log1pf, log1pl
logb, logbf, logbl
longjmp
lseek
malloc
mblen
mbrlen
mbrtowc
mbsnrtowcs, mbsrtowcs
mbtowc
memccpy
memchr
memcmp
memcpy
memmove
memset
mkdir, mkdirat
mkdtemp, mkostemp, mkstemp
mkfifo, mkfifoat
mknod, mknodat
mktime
mmap
modf, modff, modfl
mq_close
mq_notify
mq_open
mq_receive, mq_timedreceive
mq_send, mq_timedsend
msync
nan, nanf, nanl
newlocale
nextafter, nextafterf, nextafterl, nexttoward, nexttowardf, nexttowardl
nftw
open, openat
open_memstream, open_wmemstream
pclose
pipe, pipe2
poll, ppoll
popen
posix_fadvise
posix_fallocate
posix_memalign
posix_openpt
posix_spawn, posix_spawnp
posix_spawn_file_actions_addclose
posix_spawn_file_actions_adddup2
posix_spawnattr_getflags, posix_spawnattr_setflags
posix_typed_mem_open
pow, powf, powl
pselect, select
pthread_atfork
pthread_cancel
pthread_cleanup_pop, pthread_cleanup_push
pthread_cond_broadcast, pthread_cond_signal
pthread_cond_clockwait, pthread_cond_timedwait, pthread_cond_wait
pthread_condattr_getclock, pthread_condattr_setclock
pthread_detach
pthread_equal
pthread_exit
pthread_join
pthread_key_create
pthread_kill
pthread_mutex_clocklock, pthread_mutex_timedlock
pthread_mutex_destroy, pthread_mutex_init, PTHREAD_MUTEX_INITIALIZER
pthread_mutex_getprioceiling, pthread_mutex_setprioceiling
pthread_mutex_lock, pthread_mutex_trylock, pthread_mutex_unlock
pthread_mutexattr_destroy, pthread_mutexattr_init
pthread_mutexattr_getprotocol, pthread_mutexattr_setprotocol
pthread_mutexattr_gettype, pthread_mutexattr_settype
pthread_once, PTHREAD_ONCE_INIT
pthread_rwlock_clockrdlock, pthread_rwlock_timedrdlock
pthread_rwlock_clockwrlock, pthread_rwlock_timedwrlock
pthread_rwlock_rdlock, pthread_rwlock_tryrdlock
pthread_setcancelstate, pthread_setcanceltype, pthread_testcancel
pthread_sigmask, sigprocmask
ptsname, ptsname_r
putenv
qsort, qsort_r
rand, srand
pread, read
readdir, readdir_r
realloc, reallocarray
realpath
recv
recvfrom
recvmsg
regcomp, regerror, regexec, regfree
remainder, remainderf, remainderl
remquo, remquof, remquol
rename, renameat
rewind
round, roundf, roundl
scalbln, scalblnf, scalblnl, scalbn, scalbnf, scalbnl
sem_clockwait, sem_timedwait
sem_close
sem_destroy
sem_init
sem_open
sem_post
semget
semop
send
sendmsg
sendto
setegid
seteuid
setgid
setkey
setlocale
setregid
setreuid
setsid
setsockopt
setuid
setvbuf
shm_open
shmat
shmctl
shutdown
sigaction
sigaltstack
siglongjmp
signal
sigsetjmp
sigsuspend
sigtimedwait, sigwaitinfo
sin, sinf, sinl
sinh, sinhf, sinhl
sleep
sockatmark
socket
socketpair
sqrt, sqrtf, sqrtl
stderr, stdin, stdout
strcasecmp, strcasecmp_l, strncasecmp, strncasecmp_l
strcat
strchr
strcmp
stpcpy, strcpy
strcspn
strdup, strndup
strerror, strerror_l, strerror_r
strfmon, strfmon_l
strftime, strftime_l
strlen, strnlen
strncat
strncmp
stpncpy, strncpy
strpbrk
strptime
strrchr
strsignal
strspn
strstr
strtod, strtof, strtold
strtok, strtok_r
strtol, strtoll
strtoul, strtoull
symlink, symlinkat
sysconf
system
tan, tanf, tanl
tanh, tanhf, tanhl
tcsetpgrp
tdelete, tfind, tsearch, twalk
tgamma, tgammaf, tgammal
time
timer_create
tmpfile
tmpnam
towctrans, towctrans_l
trunc, truncf, truncl
truncate
ttyname, ttyname_r
daylight, timezone, tzname, tzset
umask
ungetc
ungetwc
unlink, unlinkat
unlockpt
uselocale
vasprintf, vdprintf, vfprintf, vprintf, vsnprintf, vsprintf
wait, waitpid
waitid
wcrtomb
wcscat
wcschr
wcscmp
wcpcpy, wcscpy
wcscspn
wcslen, wcsnlen
wcsncat
wcsncmp
wcpncpy, wcsncpy
wcspbrk
wcsrchr
wcsnrtombs, wcsrtombs
wcsspn
wcsstr
wcstod, wcstof, wcstold
wcstok
wcstol, wcstoll
wcstoul, wcstoull
wcswidth
wctob
wcwidth
wmemchr
wmemcmp
wmemcpy
wmemmove
wmemset
wordexp, wordfree
pwrite, write
y0, y1, yn
Update documentation regarding obsoleted functions.
Gnulib implementation tasks related to POSIX.1-2024
===================================================
Implementation of new functions, classified according to the header file
------------------------------------------------------------------------
<complex.h>
CMPLX, CMPLXF, CMPLXL
<devctl.h>
posix_devctl
<dirent.h>
posix_getdents
<dlfcn.h>
dladdr
<endian.h>
be16toh
be32toh
be64toh
htobe16
htobe32
htobe64
htole16
htole32
htole64
le16toh
le32toh
le64toh
<iconv.h>
<libintl.h>
bindtextdomain
bind_textdomain_codeset
textdomain
dgettext
dgettext_l
dcgettext
dcgettext_l
dngettext
dngettext_l
dcngettext
dcngettext_l
gettext
gettext_l
ngettext
ngettext_l
<locale.h>
getlocalename_l
<netinet/in.h>
in6addr_any
in6addr_loopback
<signal.h>
sig2str
str2sig
<spawn.h>
posix_spawn_file_actions_addchdir
posix_spawn_file_actions_addfchdir
<stdatomic.h>
atomic_compare_exchange_strong
atomic_compare_exchange_strong_explicit
atomic_compare_exchange_weak
atomic_compare_exchange_weak_explicit
atomic_exchange
atomic_exchange_explicit
atomic_fetch_add
atomic_fetch_add_explicit
atomic_fetch_and
atomic_fetch_and_explicit
atomic_fetch_or
atomic_fetch_or_explicit
atomic_fetch_sub
atomic_fetch_sub_explicit
atomic_fetch_xor
atomic_fetch_xor_explicit
atomic_flag_clear
atomic_flag_clear_explicit
atomic_flag_test_and_set
atomic_flag_test_and_set_explicit
atomic_init
atomic_is_lock_free
atomic_load
atomic_load_explicit
atomic_signal_fence
atomic_thread_fence
atomic_store
atomic_store_explicit
kill_dependency
<stdlib.h>
aligned_alloc
at_quick_exit
quick_exit
<string.h>
memmem
strlcat
strlcpy
<strings.h>
ffsl, ffsll
<termios.h>
tcgetwinsize
tcsetwinsize
<threads.h>
call_once
cnd_broadcast
cnd_signal
cnd_destroy
cnd_init
cnd_timedwait
cnd_wait
mtx_destroy
mtx_init
mtx_lock
mtx_timedlock
mtx_trylock
mtx_unlock
thrd_create
thrd_current
thrd_detach
thrd_equal
thrd_exit
thrd_join
thrd_sleep
thrd_yield
tss_create
tss_delete
tss_get
tss_set
<time.h>
timespec_get
<uchar.h>
c16rtomb
c32rtomb
mbrtoc16
mbrtoc32
<unistd.h>
getentropy
getresgid
getresuid
setresgid
setresuid
<wchar.h>
wcslcat
wcslcpy
Implementation of modified functions, classified according to the header file
-----------------------------------------------------------------------------
<aio.h>
aio_fsync
aio_suspend
aio_write
lio_listio
<arpa/inet.h>
htonl, htons, ntohl, ntohs
inet_addr, inet_ntoa
inet_ntop, inet_pton
<complex.h>
cabs, cabsf, cabsl
cacos, cacosf, cacosl
cacosh, cacoshf, cacoshl
carg, cargf, cargl
casin, casinf, casinl
casinh, casinhf, casinhl
catan, catanf, catanl
catanh, catanhf, catanhl
ccos, ccosf, ccosl
ccosh, ccoshf, ccoshl
cexp, cexpf, cexpl
clog, clogf, clogl
cpow, cpowf, cpowl
csin, csinf, csinl
csinh, csinhf, csinhl
csqrt, csqrtf, csqrtl
ctan, ctanf, ctanl
ctanh, ctanhf, ctanhl
<dirent.h>
closedir
dirfd
fdopendir, opendir
readdir, readdir_r
<dlfcn.h>
dlclose
dlerror
dlopen
dlsym
<errno.h>
errno
<fcntl.h>
fchmodat
creat
fcntl
open, openat
posix_fadvise
posix_fallocate
<fnmatch.h>
fnmatch
<ftw.h>
nftw
<glob.h>
glob, globfree
<grp.h>
getgrgid, getgrgid_r
getgrnam, getgrnam_r
<iconv.h>
iconv
iconv_open
<inttypes.h>
imaxabs
<libgen.h>
basename
dirname
<locale.h>
freelocale
localeconv
newlocale
setlocale
uselocale
<math.h>
asin, asinf, asinl
asinh, asinhf, asinhl
atan, atanf, atanl
atan2, atan2f, atan2l
atanh, atanhf, atanhl
ceil, ceilf, ceill
copysign, copysignf, copysignl
erf, erff, erfl
expm1, expm1f, expm1l
fabs, fabsf, fabsl
floor, floorf, floorl
fmax, fmaxf, fmaxl
fmin, fminf, fminl
fmod, fmodf, fmodl
frexp, frexpf, frexpl
ilogb, ilogbf, ilogbl
isgreater, isgreaterequal, isless, islessequal, islessgreater
j0, j1, jn
lgamma, lgammaf, lgammal, signgam
log1p, log1pf, log1pl
logb, logbf, logbl
modf, modff, modfl
nan, nanf, nanl
nextafter, nextafterf, nextafterl, nexttoward, nexttowardf, nexttowardl
pow, powf, powl
remainder, remainderf, remainderl
remquo, remquof, remquol
round, roundf, roundl
scalbln, scalblnf, scalblnl, scalbn, scalbnf, scalbnl
sin, sinf, sinl
sinh, sinhf, sinhl
sqrt, sqrtf, sqrtl
tan, tanf, tanl
tanh, tanhf, tanhl
tgamma, tgammaf, tgammal
trunc, truncf, truncl
y0, y1, yn
<monetary.h>
strfmon, strfmon_l
<mqueue.h>
mq_close
mq_notify
mq_open
mq_receive, mq_timedreceive
mq_send, mq_timedsend
<ndbm.h>
dbm_clearerr, dbm_close, dbm_delete, dmb_error, dmb_fetch, dbm_firstkey,
dbm_nextkey, dbm_open, dbm_store
<net/if.h>
if_freenameindex
<netdb.h>
endhostent, gethostent, sethostent
endnetent, getnetbyaddr, getnetbyname, getnetent, setnetent
endprotoent, getprotobyname, getprotobynumber, getprotoent, setprotoent
endservent, getservbyname, getservbyport, getservent, setservent
freeaddrinfo, getaddrinfo
<nl_types.h>
catopen
<poll.h>
poll, ppoll
<pthread.h>
pthread_atfork
pthread_cancel
pthread_cleanup_pop, pthread_cleanup_push
pthread_cond_broadcast, pthread_cond_signal
pthread_cond_clockwait, pthread_cond_timedwait, pthread_cond_wait
pthread_condattr_getclock, pthread_condattr_setclock
pthread_detach
pthread_equal
pthread_exit
pthread_join
pthread_key_create
pthread_kill
pthread_mutex_clocklock, pthread_mutex_timedlock
pthread_mutex_destroy, pthread_mutex_init, PTHREAD_MUTEX_INITIALIZER
pthread_mutex_getprioceiling, pthread_mutex_setprioceiling
pthread_mutex_lock, pthread_mutex_trylock, pthread_mutex_unlock
pthread_mutexattr_destroy, pthread_mutexattr_init
pthread_mutexattr_getprotocol, pthread_mutexattr_setprotocol
pthread_mutexattr_gettype, pthread_mutexattr_settype
pthread_once, PTHREAD_ONCE_INIT
pthread_rwlock_clockrdlock, pthread_rwlock_timedrdlock
pthread_rwlock_clockwrlock, pthread_rwlock_timedwrlock
pthread_rwlock_rdlock, pthread_rwlock_tryrdlock
pthread_setcancelstate, pthread_setcanceltype, pthread_testcancel
<pwd.h>
getpwnam, getpwnam_r
getpwuid, getpwuid_r
<regex.h>
regcomp, regerror, regexec, regfree
<search.h>
tdelete, tfind, tsearch, twalk
<semaphore.h>
sem_clockwait, sem_timedwait
sem_close
sem_destroy
sem_init
sem_open
sem_post
<setjmp.h>
longjmp
siglongjmp
sigsetjmp
<signal.h>
kill
pthread_sigmask, sigprocmask
sigaction
sigaltstack
signal
sigsuspend
sigtimedwait, sigwaitinfo
<spawn.h>
posix_spawn, posix_spawnp
posix_spawn_file_actions_addclose
posix_spawn_file_actions_adddup2
posix_spawnattr_getflags, posix_spawnattr_setflags
<stdio.h>
fclose
fdopen
fflush
fgetc
fgets
fgetwc
fgetws
flockfile, ftrylockfile, funlockfile
fmemopen
fopen
asprintf, dprintf, fprintf, printf, snprintf, sprintf
fputc
fputwc
fread
freopen
fscanf, scanf, sscanf
fseek, fseeko
fsetpos
ftell, ftello
fwprintf, swprintf, wprintf
fwrite
fwscanf, swscanf, wscanf
getdelim, getline
open_memstream, open_wmemstream
pclose
popen
rename, renameat
rewind
setvbuf
stderr, stdin, stdout
tmpfile
tmpnam
ungetc
vasprintf, vdprintf, vfprintf, vprintf, vsnprintf, vsprintf
<stdlib.h>
_Exit, exit
abort
abs
atexit
atoi
calloc
drand48, erand48, jrand48, lcong48, lrand48, mrand48, nrand48, seed48, srand48
exit
free
getenv, secure_getenv
getsubopt
grantpt
initstate, setstate, srandom
labs, llabs
malloc
mblen
mbtowc
mkdtemp, mkostemp, mkstemp
posix_memalign
posix_openpt
ptsname, ptsname_r
putenv
qsort, qsort_r
rand, srand
realloc, reallocarray
realpath
setkey
strtod, strtof, strtold
strtol, strtoll
strtoul, strtoull
unlockpt
wctomb
<string.h>
memccpy
memchr
memcmp
memcpy
memmove
memset
strcat
strchr
strcmp
stpcpy, strcpy
strcspn
strdup, strndup
strerror, strerror_l, strerror_r
strlen, strnlen
strncat
strncmp
stpncpy, strncpy
strpbrk
strrchr
strsignal
strspn
strstr
strtok, strtok_r
system
<strings.h>
strcasecmp, strcasecmp_l, strncasecmp, strncasecmp_l
<sys/mman.h>
mmap
msync
posix_typed_mem_open
shm_open
<sys/resource.h>
getrlimit, setrlimit
getrusage
<sys/select.h>
pselect, select
<sys/sem.h>
semget
semop
<sys/shm.h>
shmat
shmctl
<sys/socket.h>
accept, accept4
bind
connect
getpeername
getsockname
recv
recvfrom
recvmsg
send
sendmsg
sendto
setsockopt
shutdown
sockatmark
socket
socketpair
<sys/stat.h>
chmod
fchmod
fstatat, lstat, stat
futimens, utimensat, utimes
mkdir, mkdirat
mkfifo, mkfifoat
mknod, mknodat
umask
<sys/wait.h>
wait, waitpid
waitid
<syslog.h>
closelog, openlog, setlogmask, syslog
<time.h>
asctime
clock
clock_getres
ctime
getdate
gmtime, gmtime_r
localtime, localtime_r
mktime
strftime, strftime_l
strptime
time
timer_create
daylight, timezone, tzname, tzset
<unistd.h>
alarm
close, posix_close
confstr
crypt
dup, dup2, dup3
encrypt
execl, execle, execlp, execv, execve, execvp, fexecve
fchown
fdatasync
fork, _Fork
fpathconf, pathconf
fsync
ftruncate
getegid
geteuid
getgid
getgroups
getlogin, getlogin_r
getopt, optarg, opterr, optind, optopt
getpgrp
getuid
link, linkat
lockf
lseek
pipe, pipe2
pread, read
setegid
seteuid
setgid
setregid
setreuid
setsid
setuid
sleep
symlink, symlinkat
sysconf
tcsetpgrp
truncate
ttyname, ttyname_r
unlink, unlinkat
pwrite, write
<wchar.h>
mbrlen
mbrtowc
mbsnrtowcs, mbsrtowcs
ungetwc
wcrtomb
wcscat
wcschr
wcscmp
wcpcpy, wcscpy
wcscspn
wcslen, wcsnlen
wcsncat
wcsncmp
wcpncpy, wcsncpy
wcspbrk
wcsrchr
wcsnrtombs, wcsrtombs
wcsspn
wcsstr
wcstod, wcstof, wcstold
wcstok
wcstol, wcstoll
wcstoul, wcstoull
wcswidth
wctob
wcwidth
wmemchr
wmemcmp
wmemcpy
wmemmove
wmemset
<wctype.h>
iswblank, iswblank_l
iswctype, iswctype_l
towctrans, towctrans_l
<wordexp.h>
wordexp, wordfree
