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undocumented(3) [posix man page]

UNDOCUMENTED(3) 					     Linux Programmer's Manual						   UNDOCUMENTED(3)

NAME
undocumented - undocumented library functions SYNOPSIS
Undocumented library functions DESCRIPTION
This man page mentions those library functions which are implemented in the standard libraries but not yet documented in man pages. Solicitation 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. The list 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), getdiren- tries64(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), regis- ter_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), 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_key- buf(3), xdr_keystatus(3), xdr_mapname(3), xdr_netnamestr(3), xdr_netobj(3), xdr_passwd(3), xdr_peername(3), xdr_rmtcall_args(3), xdr_rmt- callres(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) COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/. Linux 2017-09-15 UNDOCUMENTED(3)

Check Out this Related Man Page

GET_PHYS_PAGES(3)                                            Linux Programmer's Manual                                           GET_PHYS_PAGES(3)

NAME
get_phys_pages, get_avphys_pages - get total and available physical page counts SYNOPSIS
#include <sys/sysinfo.h> long int get_phys_pages(void); long int get_avphys_pages(void); DESCRIPTION
The function get_phys_pages() returns the total number of physical pages of memory available on the system. The function get_avphys_pages() returns the number of currently available physical pages of memory on the system. RETURN VALUE
On success, these functions return a nonnegative value as given in DESCRIPTION. On failure, they return -1 and set errno to indicate the cause of the error. ERRORS
ENOSYS The system could not provide the required information (possibly because the /proc filesystem was not mounted). CONFORMING TO
These functions are GNU extensions. NOTES
These functions obtain the required information by scanning the MemTotal and MemFree fields of /proc/meminfo. The following sysconf(3) calls provide a portable means of obtaining the same information as the functions described on this page. total_pages = sysconf(_SC_PHYS_PAGES); /* total pages */ avl_pages = sysconf(_SC_AVPHYS_PAGES); /* available pages */ EXAMPLE
The following example shows how get_phys_pages() and get_avphys_pages() can be used. #include <stdio.h> #include <stdlib.h> #include <sys/sysinfo.h> int main(int argc, char *argv[]) { printf("This system has %ld pages of physical memory and " "%ld pages of physical memory available. ", get_phys_pages(), get_avphys_pages()); exit(EXIT_SUCCESS); } SEE ALSO
sysconf(3) COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/. GNU 2017-09-15 GET_PHYS_PAGES(3)
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