undocumented(3)

💖 NAME 💖

okay so bestie, you've summoned undocumented(3) — it's from the Library Functions Manual section 3, and it's basically the group chat of all the library functions that exist in real life but never got their own man page. 💅

undocumented — undocumented library functions. periodt.

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✨ SYNOPSIS ✨

Undocumented library functions

like. that's it. that's the synopsis. iconic of them honestly.

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🦋 DESCRIPTION 🦋

This man page mentions those library functions which are implemented in the standard libraries but not yet documented in man pages. no cap. they're real, they're out there, they're just undocumented. 😭

🎀 Solicitation 🎀

Okay so this is where YOU come in, bestie 👑 — if you have information about these functions, please look in the source code, write a man page (using a style similar to that of the other Linux section 3 man pages), and send it to mtk.manpages@gmail.com for inclusion in the next man page release. not me asking you to be the main character of documentation 💖

📜 The list 📜

here's the full roster, every single one, no skipping, we don't do that here:

authdes_create(3), authdes_getucred(3), authdes_pk_create(3),
clntunix_create(3), creat64(3), dn_skipname(3), fcrypt(3), fp_nquery(3),
fp_query(3), fp_resstat(3), freading(3), freopen64(3), fseeko64(3),
ftello64(3), ftw64(3), fwscanf(3), get_avphys_pages(3),
getdirentries64(3), getmsg(3), getnetname(3), get_phys_pages(3),
getpublickey(3), getsecretkey(3), h_errlist(3), host2netname(3),
hostalias(3), inet_nsap_addr(3), inet_nsap_ntoa(3), init_des(3),
libc_nls_init(3), mstats(3), netname2host(3), netname2user(3), nlist(3),
obstack_free(3), parse_printf_format(3), p_cdname(3), p_cdnname(3),
p_class(3), p_fqname(3), p_option(3), p_query(3), printf_size(3),
printf_size_info(3), p_rr(3), p_time(3), p_type(3), putlong(3),
putshort(3), re_compile_fastmap(3), re_compile_pattern(3),
register_printf_function(3), re_match(3), re_match_2(3),
re_rx_search(3), re_search(3), re_search_2(3), re_set_registers(3),
re_set_syntax(3), res_send_setqhook(3), res_send_setrhook(3),
ruserpass(3), setfileno(3), sethostfile(3), svc_exit(3),
svcudp_enablecache(3), tell(3), thrd_create(3), thrd_current(3),
thrd_equal(3), thrd_sleep(3), thrd_yield(3), tr_break(3), tzsetwall(3),
ufc_dofinalperm(3), ufc_doit(3), user2netname(3), wcschrnul(3),
wcsftime(3), wscanf(3), xdr_authdes_cred(3), xdr_authdes_verf(3),
xdr_cryptkeyarg(3), xdr_cryptkeyres(3), xdr_datum(3), xdr_des_block(3),
xdr_domainname(3), xdr_getcredres(3), xdr_keybuf(3), xdr_keystatus(3),
xdr_mapname(3), xdr_netnamestr(3), xdr_netobj(3), xdr_passwd(3),
xdr_peername(3), xdr_rmtcall_args(3), xdr_rmtcallres(3),
xdr_unixcred(3), xdr_yp_buf(3), xdr_yp_inaddr(3), xdr_ypbind_binding(3),
xdr_ypbind_resp(3), xdr_ypbind_resptype(3), xdr_ypbind_setdom(3),
xdr_ypdelete_args(3), xdr_ypmaplist(3), xdr_ypmaplist_str(3),
xdr_yppasswd(3), xdr_ypreq_key(3), xdr_ypreq_nokey(3),
xdr_ypresp_all(3), xdr_ypresp_all_seq(3), xdr_ypresp_key_val(3),
xdr_ypresp_maplist(3), xdr_ypresp_master(3), xdr_ypresp_order(3),
xdr_ypresp_val(3), xdr_ypstat(3), xdr_ypupdate_args(3), yp_all(3),
yp_bind(3), yperr_string(3), yp_first(3), yp_get_default_domain(3),
yp_maplist(3), yp_master(3), yp_match(3), yp_next(3), yp_order(3),
ypprot_err(3), yp_unbind(3), yp_update(3)

fr fr, if any of these are yours to document, the people need you 🫶

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k that's the whole page babes, sending you off with the deets from the bottom: this one's from Linux man-pages 6.20, dated 2026-02-08 — undocumented(3), slay, bye ✨🌈💜