2004-11-03 13:51:07 +00:00
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.\" Copyright 1993 David Metcalfe (david@prism.demon.co.uk)
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.\"
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intro.1, _exit.2, access.2, alarm.2, alloc_hugepages.2, arch_prctl.2, bind.2, chdir.2, chmod.2, chown.2, chroot.2, clock_getres.2, clock_nanosleep.2, close.2, connect.2, delete_module.2, dup.2, execve.2, exit_group.2, faccessat.2, fchmodat.2, fchownat.2, fcntl.2, fork.2, fstatat.2, fsync.2, futimesat.2, get_robust_list.2, getdents.2, getdomainname.2, getgid.2, getgroups.2, gethostname.2, getpagesize.2, getpid.2, getresuid.2, getrlimit.2, getrusage.2, gettid.2, gettimeofday.2, getuid.2, getunwind.2, idle.2, init_module.2, intro.2, iopl.2, kcmp.2, kexec_load.2, kill.2, link.2, linkat.2, llseek.2, lookup_dcookie.2, madvise.2, mincore.2, mkdirat.2, mknodat.2, mmap.2, mmap2.2, mount.2, mprotect.2, mq_getsetattr.2, msgctl.2, msgget.2, msgop.2, msync.2, nice.2, open.2, openat.2, pause.2, perfmonctl.2, personality.2, pipe.2, poll.2, posix_fadvise.2, prctl.2, pread.2, process_vm_readv.2, quotactl.2, read.2, readahead.2, readdir.2, readlinkat.2, readv.2, reboot.2, recvmmsg.2, remap_file_pages.2, rename.2, renameat.2, rmdir.2, rt_sigqueueinfo.2, select.2, select_tut.2, semctl.2, semget.2, semop.2, sendmmsg.2, set_tid_address.2, seteuid.2, setfsgid.2, setfsuid.2, setgid.2, setresuid.2, setuid.2, setup.2, sgetmask.2, shmctl.2, shmget.2, shmop.2, sigaction.2, sigaltstack.2, signal.2, sigpending.2, sigprocmask.2, sigreturn.2, sigsuspend.2, sigwaitinfo.2, splice.2, stat.2, statfs.2, stime.2, subpage_prot.2, swapon.2, symlink.2, symlinkat.2, sync.2, sync_file_range.2, syscalls.2, sysctl.2, sysfs.2, syslog.2, tee.2, time.2, timer_create.2, timer_delete.2, timer_getoverrun.2, timer_settime.2, times.2, tkill.2, umask.2, umount.2, uname.2, unlink.2, unlinkat.2, uselib.2, ustat.2, utime.2, utimensat.2, vfork.2, vhangup.2, vm86.2, vmsplice.2, wait.2, wait4.2, write.2, CPU_SET.3, INFINITY.3, abort.3, abs.3, acos.3, acosh.3, adjtime.3, aio_init.3, asin.3, asinh.3, asprintf.3, assert.3, assert_perror.3, atan.3, atan2.3, atanh.3, atexit.3, atof.3, atoi.3, basename.3, bcmp.3, bcopy.3, bindresvport.3, bsd_signal.3, bsearch.3, bstring.3, byteorder.3, bzero.3, catgets.3, catopen.3, cbrt.3, ceil.3, clearenv.3, clock.3, clock_getcpuclockid.3, closedir.3, confstr.3, copysign.3, cos.3, cosh.3, ctermid.3, ctime.3, difftime.3, dirfd.3, div.3, dl_iterate_phdr.3, dprintf.3, drand48.3, drand48_r.3, dysize.3, ecvt.3, ecvt_r.3, end.3, endian.3, erf.3, erfc.3, ether_aton.3, euidaccess.3, exit.3, exp.3, exp10.3, exp2.3, expm1.3, fabs.3, fcloseall.3, fexecve.3, ffs.3, fgetgrent.3, fgetpwent.3, finite.3, flockfile.3, floor.3, fmod.3, fnmatch.3, fopencookie.3, fpathconf.3, fpurge.3, frexp.3, fseeko.3, ftok.3, futimes.3, gcvt.3, get_nprocs_conf.3, getaddrinfo.3, getaddrinfo_a.3, getauxval.3, getcontext.3, getcwd.3, getdate.3, getdirentries.3, getdtablesize.3, getenv.3, getfsent.3, getgrent.3, getgrnam.3, getgrouplist.3, gethostbyname.3, gethostid.3, getifaddrs.3, getipnodebyname.3, getline.3, getlogin.3, getmntent.3, getnetent.3, getnetent_r.3, getopt.3, getprotoent.3, getprotoent_r.3, getpw.3, getpwent.3, getpwnam.3, getrpcent_r.3, gets.3, getservent.3, getservent_r.3, getumask.3, getusershell.3, getutmp.3, getw.3, glob.3, gnu_get_libc_version.3, gsignal.3, hypot.3, if_nameindex.3, if_nametoindex.3, ilogb.3, index.3, inet.3, inet_ntop.3, inet_pton.3, infnan.3, initgroups.3, insque.3, intro.3, isalpha.3, isatty.3, j0.3, ldexp.3, localeconv.3, log.3, log10.3, log1p.3, log2.3, logb.3, lrint.3, lround.3, lsearch.3, lseek64.3, makecontext.3, makedev.3, mallinfo.3, malloc.3, malloc_get_state.3, malloc_info.3, malloc_stats.3, malloc_trim.3, malloc_usable_size.3, mallopt.3, matherr.3, mcheck.3, memccpy.3, memchr.3, memcmp.3, memcpy.3, memfrob.3, memmem.3, memmove.3, memset.3, mkdtemp.3, mkfifo.3, mkfifoat.3, mkstemp.3, mktemp.3, modf.3, mq_close.3, mq_getattr.3, mq_notify.3, mq_open.3, mq_receive.3, mq_send.3, mq_unlink.3, mtrace.3, on_exit.3, opendir.3, posix_fallocate.3, posix_memalign.3, posix_openpt.3, pow.3, pow10.3, profil.3, psignal.3, pthread_attr_init.3, pthread_attr_setaffinity_np.3, pthread_attr_setdetachstate.3, pthread_attr_setguardsize.3, pthread_attr_setinheritsched.3, pthread_attr_setschedparam.3, pthread_attr_setschedpolicy.3, pthread_attr_setscope.3, pthread_attr_setstack.3, pthread_attr_setstackaddr.3, pthread_attr_setstacksize.3, pthread_cancel.3, pthread_cleanup_push.3, pthread_cleanup_push_defer_np.3, pthread_create.3, pthread_detach.3, pthread_equal.3, pthread_exit.3, pthread_getattr_np.3, pthread_getcpuclockid.3, pthread_join.3, pthread_kill.3, pthread_kill_other_threads_np.3, pthread_self.3, pthread_setaffinity_np.3, pthread_setcancelstate.3, pthread_setconcurrency.3, pthread_setname_np.3, pthread_setschedparam.3, pthread_setschedprio.3, pthread_sigmask.3, pthread_sigqueue.3, pthread_testcancel.3, pthread_tryjoin_np.3, pthread_yield.3, putenv.3, putpwent.3, puts.3, qecvt.3, qsort.3, raise.3, rand.3, random.3, random_r.3, re_comp.3, readdir.3, realpath.3, regex.3, remainder.3, remove.3, resolver.3, rewinddir.3, rint.3, round.3, scalb.3, scalbln.3, scandir.3, sched_getcpu.3, seekdir.3, sem_close.3, sem_destroy.3, sem_getvalue.3, sem_init.3, sem_open.3, sem_post.3, sem_unlink.3, sem_wait.3, setenv.3, setlocale.3, setlogmask.3, shm_open.3, siginterrupt.3, sigpause.3, sigqueue.3, sigset.3, sigsetops.3, sigvec.3, sigwait.3, sin.3, sinh.3, sleep.3, sockatmark.3, sqrt.3, statvfs.3, stdio_ext.3, stpcpy.3, strcasecmp.3, strcat.3, strchr.3, strcmp.3, strcoll.3, strcpy.3, strdup.3, strerror.3, strfry.3, strftime.3, string.3, strlen.3, strpbrk.3, strptime.3, strsep.3, strsignal.3, strspn.3, strstr.3, strtok.3, strtol.3, strtoul.3, strverscmp.3, strxfrm.3, swab.3, sysconf.3, syslog.3, system.3, sysv_signal.3, tan.3, tanh.3, tcgetpgrp.3, tcgetsid.3, telldir.3, tempnam.3, timegm.3, timeradd.3, tmpfile.3, tmpnam.3, toascii.3, toupper.3, trunc.3, tsearch.3, ttyslot.3, tzset.3, ulimit.3, undocumented.3, unlocked_stdio.3, usleep.3, y0.3, cpuid.4, full.4, initrd.4, mouse.4, msr.4, sd.4, st.4, acct.5, core.5, services.5, slabinfo.5, aio.7, capabilities.7, credentials.7, feature_test_macros.7, hier.7, inotify.7, libc.7, locale.7, man-pages.7, man.7, math_error.7, mq_overview.7, numa.7, path_resolution.7, pipe.7, pthreads.7, pty.7, rtld-audit.7, sem_overview.7, shm_overview.7, sigevent.7, signal.7, suffixes.7, svipc.7, termio.7, time.7, udplite.7, units.7, uri.7, sln.8: s/LICENSE_START(verbatim)/LICENSE_START(VERBATIM)/
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2013-03-10 09:29:01 +00:00
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.\" %%%LICENSE_START(VERBATIM)
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2004-11-03 13:51:07 +00:00
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.\" Permission is granted to make and distribute verbatim copies of this
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.\" manual provided the copyright notice and this permission notice are
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.\" preserved on all copies.
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.\"
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.\" Permission is granted to copy and distribute modified versions of this
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.\" manual under the conditions for verbatim copying, provided that the
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.\" entire resulting derived work is distributed under the terms of a
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.\" permission notice identical to this one.
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2007-04-12 22:42:49 +00:00
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.\"
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2004-11-03 13:51:07 +00:00
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.\" Since the Linux kernel and libraries are constantly changing, this
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.\" manual page may be incorrect or out-of-date. The author(s) assume no
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.\" responsibility for errors or omissions, or for damages resulting from
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.\" the use of the information contained herein. The author(s) may not
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.\" have taken the same level of care in the production of this manual,
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.\" which is licensed free of charge, as they might when working
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.\" professionally.
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2007-04-12 22:42:49 +00:00
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.\"
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2004-11-03 13:51:07 +00:00
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.\" Formatted or processed versions of this manual, if unaccompanied by
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.\" the source, must acknowledge the copyright and authors of this work.
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intro.1, _exit.2, access.2, alarm.2, alloc_hugepages.2, arch_prctl.2, bind.2, chdir.2, chmod.2, chown.2, chroot.2, clock_getres.2, clock_nanosleep.2, close.2, connect.2, delete_module.2, dup.2, execve.2, exit_group.2, faccessat.2, fchmodat.2, fchownat.2, fcntl.2, fork.2, fstatat.2, fsync.2, futimesat.2, get_robust_list.2, getdents.2, getdomainname.2, getgid.2, getgroups.2, gethostname.2, getpagesize.2, getpid.2, getresuid.2, getrlimit.2, getrusage.2, gettid.2, gettimeofday.2, getuid.2, getunwind.2, idle.2, init_module.2, intro.2, iopl.2, kcmp.2, kexec_load.2, kill.2, link.2, linkat.2, llseek.2, lookup_dcookie.2, madvise.2, mincore.2, mkdirat.2, mknodat.2, mmap.2, mmap2.2, mount.2, mprotect.2, mq_getsetattr.2, msgctl.2, msgget.2, msgop.2, msync.2, nice.2, open.2, openat.2, pause.2, perfmonctl.2, personality.2, pipe.2, poll.2, posix_fadvise.2, prctl.2, pread.2, process_vm_readv.2, quotactl.2, read.2, readahead.2, readdir.2, readlinkat.2, readv.2, reboot.2, recvmmsg.2, remap_file_pages.2, rename.2, renameat.2, rmdir.2, rt_sigqueueinfo.2, select.2, select_tut.2, semctl.2, semget.2, semop.2, sendmmsg.2, set_tid_address.2, seteuid.2, setfsgid.2, setfsuid.2, setgid.2, setresuid.2, setuid.2, setup.2, sgetmask.2, shmctl.2, shmget.2, shmop.2, sigaction.2, sigaltstack.2, signal.2, sigpending.2, sigprocmask.2, sigreturn.2, sigsuspend.2, sigwaitinfo.2, splice.2, stat.2, statfs.2, stime.2, subpage_prot.2, swapon.2, symlink.2, symlinkat.2, sync.2, sync_file_range.2, syscalls.2, sysctl.2, sysfs.2, syslog.2, tee.2, time.2, timer_create.2, timer_delete.2, timer_getoverrun.2, timer_settime.2, times.2, tkill.2, umask.2, umount.2, uname.2, unlink.2, unlinkat.2, uselib.2, ustat.2, utime.2, utimensat.2, vfork.2, vhangup.2, vm86.2, vmsplice.2, wait.2, wait4.2, write.2, CPU_SET.3, INFINITY.3, abort.3, abs.3, acos.3, acosh.3, adjtime.3, aio_init.3, asin.3, asinh.3, asprintf.3, assert.3, assert_perror.3, atan.3, atan2.3, atanh.3, atexit.3, atof.3, atoi.3, basename.3, bcmp.3, bcopy.3, bindresvport.3, bsd_signal.3, bsearch.3, bstring.3, byteorder.3, bzero.3, catgets.3, catopen.3, cbrt.3, ceil.3, clearenv.3, clock.3, clock_getcpuclockid.3, closedir.3, confstr.3, copysign.3, cos.3, cosh.3, ctermid.3, ctime.3, difftime.3, dirfd.3, div.3, dl_iterate_phdr.3, dprintf.3, drand48.3, drand48_r.3, dysize.3, ecvt.3, ecvt_r.3, end.3, endian.3, erf.3, erfc.3, ether_aton.3, euidaccess.3, exit.3, exp.3, exp10.3, exp2.3, expm1.3, fabs.3, fcloseall.3, fexecve.3, ffs.3, fgetgrent.3, fgetpwent.3, finite.3, flockfile.3, floor.3, fmod.3, fnmatch.3, fopencookie.3, fpathconf.3, fpurge.3, frexp.3, fseeko.3, ftok.3, futimes.3, gcvt.3, get_nprocs_conf.3, getaddrinfo.3, getaddrinfo_a.3, getauxval.3, getcontext.3, getcwd.3, getdate.3, getdirentries.3, getdtablesize.3, getenv.3, getfsent.3, getgrent.3, getgrnam.3, getgrouplist.3, gethostbyname.3, gethostid.3, getifaddrs.3, getipnodebyname.3, getline.3, getlogin.3, getmntent.3, getnetent.3, getnetent_r.3, getopt.3, getprotoent.3, getprotoent_r.3, getpw.3, getpwent.3, getpwnam.3, getrpcent_r.3, gets.3, getservent.3, getservent_r.3, getumask.3, getusershell.3, getutmp.3, getw.3, glob.3, gnu_get_libc_version.3, gsignal.3, hypot.3, if_nameindex.3, if_nametoindex.3, ilogb.3, index.3, inet.3, inet_ntop.3, inet_pton.3, infnan.3, initgroups.3, insque.3, intro.3, isalpha.3, isatty.3, j0.3, ldexp.3, localeconv.3, log.3, log10.3, log1p.3, log2.3, logb.3, lrint.3, lround.3, lsearch.3, lseek64.3, makecontext.3, makedev.3, mallinfo.3, malloc.3, malloc_get_state.3, malloc_info.3, malloc_stats.3, malloc_trim.3, malloc_usable_size.3, mallopt.3, matherr.3, mcheck.3, memccpy.3, memchr.3, memcmp.3, memcpy.3, memfrob.3, memmem.3, memmove.3, memset.3, mkdtemp.3, mkfifo.3, mkfifoat.3, mkstemp.3, mktemp.3, modf.3, mq_close.3, mq_getattr.3, mq_notify.3, mq_open.3, mq_receive.3, mq_send.3, mq_unlink.3, mtrace.3, on_exit.3, opendir.3, posix_fallocate.3, posix_memalign.3, posix_openpt.3, pow.3, pow10.3, profil.3, psignal.3, pthread_attr_init.3, pthread_attr_setaffinity_np.3, pthread_attr_setdetachstate.3, pthread_attr_setguardsize.3, pthread_attr_setinheritsched.3, pthread_attr_setschedparam.3, pthread_attr_setschedpolicy.3, pthread_attr_setscope.3, pthread_attr_setstack.3, pthread_attr_setstackaddr.3, pthread_attr_setstacksize.3, pthread_cancel.3, pthread_cleanup_push.3, pthread_cleanup_push_defer_np.3, pthread_create.3, pthread_detach.3, pthread_equal.3, pthread_exit.3, pthread_getattr_np.3, pthread_getcpuclockid.3, pthread_join.3, pthread_kill.3, pthread_kill_other_threads_np.3, pthread_self.3, pthread_setaffinity_np.3, pthread_setcancelstate.3, pthread_setconcurrency.3, pthread_setname_np.3, pthread_setschedparam.3, pthread_setschedprio.3, pthread_sigmask.3, pthread_sigqueue.3, pthread_testcancel.3, pthread_tryjoin_np.3, pthread_yield.3, putenv.3, putpwent.3, puts.3, qecvt.3, qsort.3, raise.3, rand.3, random.3, random_r.3, re_comp.3, readdir.3, realpath.3, regex.3, remainder.3, remove.3, resolver.3, rewinddir.3, rint.3, round.3, scalb.3, scalbln.3, scandir.3, sched_getcpu.3, seekdir.3, sem_close.3, sem_destroy.3, sem_getvalue.3, sem_init.3, sem_open.3, sem_post.3, sem_unlink.3, sem_wait.3, setenv.3, setlocale.3, setlogmask.3, shm_open.3, siginterrupt.3, sigpause.3, sigqueue.3, sigset.3, sigsetops.3, sigvec.3, sigwait.3, sin.3, sinh.3, sleep.3, sockatmark.3, sqrt.3, statvfs.3, stdio_ext.3, stpcpy.3, strcasecmp.3, strcat.3, strchr.3, strcmp.3, strcoll.3, strcpy.3, strdup.3, strerror.3, strfry.3, strftime.3, string.3, strlen.3, strpbrk.3, strptime.3, strsep.3, strsignal.3, strspn.3, strstr.3, strtok.3, strtol.3, strtoul.3, strverscmp.3, strxfrm.3, swab.3, sysconf.3, syslog.3, system.3, sysv_signal.3, tan.3, tanh.3, tcgetpgrp.3, tcgetsid.3, telldir.3, tempnam.3, timegm.3, timeradd.3, tmpfile.3, tmpnam.3, toascii.3, toupper.3, trunc.3, tsearch.3, ttyslot.3, tzset.3, ulimit.3, undocumented.3, unlocked_stdio.3, usleep.3, y0.3, cpuid.4, full.4, initrd.4, mouse.4, msr.4, sd.4, st.4, acct.5, core.5, services.5, slabinfo.5, aio.7, capabilities.7, credentials.7, feature_test_macros.7, hier.7, inotify.7, libc.7, locale.7, man-pages.7, man.7, math_error.7, mq_overview.7, numa.7, path_resolution.7, pipe.7, pthreads.7, pty.7, rtld-audit.7, sem_overview.7, shm_overview.7, sigevent.7, signal.7, suffixes.7, svipc.7, termio.7, time.7, udplite.7, units.7, uri.7, sln.8: Global fix: Add LICENSE_START(verbatim)
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2013-03-10 09:28:40 +00:00
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.\" %%%LICENSE_END
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2004-11-03 13:51:07 +00:00
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.\"
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.\" References consulted:
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.\" Linux libc source code
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.\" Lewine's _POSIX Programmer's Guide_ (O'Reilly & Associates, 1991)
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.\" 386BSD man pages
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.\" Modified 1993-05-22, David Metcalfe
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.\" Modified 1993-07-25, Rik Faith (faith@cs.unc.edu)
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.\" Modified 1997-02-16, Andries Brouwer (aeb@cwi.nl)
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.\" Modified 1998-12-21, Andries Brouwer (aeb@cwi.nl)
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.\" Modified 2000-08-12, Andries Brouwer (aeb@cwi.nl)
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.\" Modified 2001-05-19, Andries Brouwer (aeb@cwi.nl)
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.\" Modified 2002-08-05, Michael Kerrisk
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.\" Modified 2004-10-31, Andries Brouwer
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.\"
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locale.1, localedef.1, _exit.2, accept.2, access.2, acct.2, adjtimex.2, bdflush.2, bind.2, bpf.2, brk.2, chdir.2, chmod.2, chown.2, chroot.2, clock_nanosleep.2, clone.2, close.2, connect.2, copy_file_range.2, create_module.2, delete_module.2, dup.2, epoll_ctl.2, eventfd.2, execve.2, fallocate.2, fanotify_init.2, fcntl.2, flock.2, fork.2, fsync.2, futex.2, get_kernel_syms.2, getdomainname.2, getgroups.2, gethostname.2, getpagesize.2, getpeername.2, getsid.2, getsockname.2, getsockopt.2, gettimeofday.2, init_module.2, ioctl.2, ioctl_list.2, ioperm.2, iopl.2, kexec_load.2, kill.2, killpg.2, link.2, listen.2, llseek.2, lseek.2, madvise.2, memfd_create.2, mincore.2, mkdir.2, mknod.2, mmap.2, mount.2, nanosleep.2, nice.2, open.2, personality.2, pipe.2, poll.2, posix_fadvise.2, read.2, readahead.2, readlink.2, readv.2, recv.2, recvmmsg.2, rename.2, request_key.2, sched_setaffinity.2, sched_setattr.2, select.2, select_tut.2, semctl.2, semop.2, send.2, sendfile.2, sendmmsg.2, seteuid.2, setns.2, setpgid.2, setreuid.2, shutdown.2, sigaction.2, sigaltstack.2, signal.2, signalfd.2, sigpending.2, sigprocmask.2, sigsuspend.2, socketpair.2, splice.2, stat.2, statfs.2, stime.2, symlink.2, sync.2, syscall.2, syscalls.2, times.2, truncate.2, unlink.2, unshare.2, uselib.2, utimensat.2, vfork.2, vhangup.2, wait.2, wait4.2, write.2, a64l.3, abs.3, acos.3, acosh.3, addseverity.3, adjtime.3, aio_read.3, aio_write.3, asin.3, asinh.3, atan.3, atan2.3, atanh.3, atoi.3, backtrace.3, cbrt.3, ceil.3, cfree.3, clearenv.3, clock_getcpuclockid.3, clog10.3, cmsg.3, copysign.3, cos.3, cosh.3, ctermid.3, ctime.3, daemon.3, dirfd.3, div.3, dl_iterate_phdr.3, drand48.3, drand48_r.3, dysize.3, ecvt.3, ecvt_r.3, endian.3, erf.3, erfc.3, errno.3, exec.3, exp.3, exp2.3, expm1.3, fabs.3, fdim.3, ferror.3, fexecve.3, ffs.3, fgetgrent.3, fgetpwent.3, finite.3, flockfile.3, floor.3, fma.3, fmax.3, fmin.3, fmod.3, fopen.3, fpclassify.3, frexp.3, fseeko.3, fts.3, futimes.3, fwide.3, gamma.3, gcvt.3, getaddrinfo.3, getcwd.3, getdate.3, getdirentries.3, getdtablesize.3, getgrent.3, getgrent_r.3, getgrnam.3, getgrouplist.3, gethostbyname.3, gethostid.3, getline.3, getloadavg.3, getmntent.3, getnameinfo.3, getnetent_r.3, getpass.3, getprotoent_r.3, getpwent.3, getpwent_r.3, getpwnam.3, getrpcent_r.3, getservent_r.3, getspnam.3, getsubopt.3, getusershell.3, getutent.3, getw.3, gsignal.3, hypot.3, ilogb.3, inet.3, initgroups.3, insque.3, isalpha.3, isgreater.3, iswblank.3, j0.3, ldexp.3, lgamma.3, lio_listio.3, lockf.3, log.3, log10.3, log1p.3, log2.3, logb.3, lrint.3, lround.3, makedev.3, matherr.3, mbsnrtowcs.3, mkdtemp.3, mkfifo.3, mkstemp.3, mktemp.3, modf.3, mq_close.3, mq_getattr.3, mq_notify.3, mq_receive.3, mq_send.3, nan.3, nextafter.3, on_exit.3, open_memstream.3, opendir.3, perror.3, popen.3, posix_fallocate.3, posix_madvise.3, posix_memalign.3, posix_openpt.3, posix_spawn.3, pow.3, printf.3, profil.3, psignal.3, pthread_attr_setstack.3, pthread_setaffinity_np.3, putenv.3, putpwent.3, qecvt.3, rand.3, random.3, random_r.3, rcmd.3, readdir.3, realpath.3, remainder.3, remquo.3, rexec.3, rint.3, round.3, rpc.3, rpmatch.3, scalb.3, scalbln.3, scandir.3, scanf.3, seekdir.3, sem_wait.3, setbuf.3, setenv.3, setjmp.3, setnetgrent.3, siginterrupt.3, signbit.3, significand.3, sigset.3, sigsetops.3, sigvec.3, sigwait.3, sin.3, sinh.3, sleep.3, sockatmark.3, sqrt.3, statvfs.3, stpcpy.3, stpncpy.3, strdup.3, strerror.3, strftime.3, strlen.3, strnlen.3, strsep.3, strsignal.3, strtod.3, strtok.3, strtol.3, strtoul.3, syslog.3, system.3, tan.3, tanh.3, telldir.3, tempnam.3, termios.3, tgamma.3, timegm.3, timeradd.3, tmpfile.3, tmpnam.3, toascii.3, trunc.3, ttyslot.3, tzset.3, ualarm.3, unlocked_stdio.3, usleep.3, wcpcpy.3, wcpncpy.3, wcscasecmp.3, wcsdup.3, wcsncasecmp.3, wcsnlen.3, wcsnrtombs.3, wprintf.3, y0.3, pts.4, st.4, tty_ioctl.4, elf.5, gai.conf.5, group.5, locale.5, nsswitch.conf.5, proc.5, utmp.5, aio.7, capabilities.7, credentials.7, environ.7, epoll.7, fanotify.7, feature_test_macros.7, inotify.7, ip.7, mq_overview.7, namespaces.7, pipe.7, signal.7, socket.7, standards.7, svipc.7, symlink.7, time.7, unicode.7, unix.7: tstamp
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2016-03-15 03:46:01 +00:00
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.TH GETHOSTBYNAME 3 2016-03-15 "" "Linux Programmer's Manual"
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2004-11-03 13:51:07 +00:00
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.SH NAME
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2005-10-19 13:20:29 +00:00
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gethostbyname, gethostbyaddr, sethostent, gethostent, endhostent,
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2008-03-17 10:14:15 +00:00
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h_errno,
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2007-07-08 14:31:36 +00:00
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herror, hstrerror,
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2007-11-24 10:30:42 +00:00
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gethostbyaddr_r,
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2007-07-08 14:31:36 +00:00
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gethostbyname2, gethostbyname2_r, gethostbyname_r,
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gethostent_r \- get network host entry
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2004-11-03 13:51:07 +00:00
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.SH SYNOPSIS
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.nf
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.B #include <netdb.h>
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.B extern int h_errno;
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.sp
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.BI "struct hostent *gethostbyname(const char *" name );
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.sp
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.BR "#include <sys/socket.h>" " /* for AF_INET */"
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2007-12-11 16:57:30 +00:00
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.BI "struct hostent *gethostbyaddr(const void *" addr ,
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2007-12-07 19:55:54 +00:00
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.BI " socklen_t " len ", int " type );
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2004-11-03 13:51:07 +00:00
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.sp
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.BI "void sethostent(int " stayopen );
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.sp
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.B void endhostent(void);
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.sp
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.BI "void herror(const char *" s );
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.sp
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.BI "const char *hstrerror(int " err );
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2007-04-03 15:32:52 +00:00
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.sp
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2006-01-13 09:44:53 +00:00
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/* System V/POSIX extension */
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2004-11-03 13:51:07 +00:00
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.br
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.B struct hostent *gethostent(void);
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2007-04-03 15:32:52 +00:00
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.sp
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2004-11-03 13:51:07 +00:00
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/* GNU extensions */
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.br
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.BI "struct hostent *gethostbyname2(const char *" name ", int " af );
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.sp
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2007-09-20 16:26:31 +00:00
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.B "int gethostent_r("
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2007-04-03 15:32:52 +00:00
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.BI " struct hostent *" ret ", char *" buf ", size_t " buflen ,
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.BI " struct hostent **" result ", int *" h_errnop );
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2004-11-03 13:51:07 +00:00
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.sp
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2007-08-27 12:24:27 +00:00
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.BI "int gethostbyaddr_r(const void *" addr ", socklen_t " len ", int " type ,
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.BI " struct hostent *" ret ", char *" buf ", size_t " buflen ,
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.BI " struct hostent **" result ", int *" h_errnop );
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.sp
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2004-11-03 13:51:07 +00:00
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.BI "int gethostbyname_r(const char *" name ,
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2007-04-03 15:32:52 +00:00
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.BI " struct hostent *" ret ", char *" buf ", size_t " buflen ,
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.BI " struct hostent **" result ", int *" h_errnop );
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2004-11-03 13:51:07 +00:00
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.sp
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.BI "int gethostbyname2_r(const char *" name ", int " af,
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2007-04-03 15:32:52 +00:00
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.BI " struct hostent *" ret ", char *" buf ", size_t " buflen ,
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.BI " struct hostent **" result ", int *" h_errnop );
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2004-11-03 13:51:07 +00:00
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.fi
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2007-07-08 12:11:40 +00:00
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.sp
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.in -4n
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Feature Test Macro Requirements for glibc (see
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.BR feature_test_macros (7)):
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.in
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.sp
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2010-10-03 15:39:37 +00:00
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.PD 0
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2007-07-08 12:11:40 +00:00
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.ad l
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.BR gethostbyname2 (),
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.BR gethostent_r (),
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2007-08-27 12:24:27 +00:00
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.BR gethostbyaddr_r (),
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2007-07-08 12:11:40 +00:00
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.BR gethostbyname_r (),
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.BR gethostbyname2_r ():
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2010-09-19 05:12:20 +00:00
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.RS 4
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ctime.3, ffs.3, finite.3, flockfile.3, gethostbyname.3, getnameinfo.3, getw.3, insque.3, isalpha.3, popen.3, printf.3, siginterrupt.3, strdup.3, strtok.3, toascii.3, tzset.3, unlocked_stdio.3: Update FTM requirements (mostly _DEFAULT_SOURCE)
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2016-02-12 20:30:08 +00:00
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.TP 4
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Since glibc 2.19:
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_DEFAULT_SOURCE
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.TP 4
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Glibc versions up to and including 2.19:
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2007-07-08 12:11:40 +00:00
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_BSD_SOURCE || _SVID_SOURCE
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2010-09-19 05:12:20 +00:00
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.RE
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2009-12-03 12:24:13 +00:00
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.BR herror (),
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2010-10-06 05:54:00 +00:00
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.BR hstrerror ():
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2010-09-19 05:12:20 +00:00
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.RS 4
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2010-10-03 15:39:37 +00:00
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.TP 4
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ctime.3, ffs.3, finite.3, flockfile.3, gethostbyname.3, getnameinfo.3, getw.3, insque.3, isalpha.3, popen.3, printf.3, siginterrupt.3, strdup.3, strtok.3, toascii.3, tzset.3, unlocked_stdio.3: Update FTM requirements (mostly _DEFAULT_SOURCE)
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2016-02-12 20:30:08 +00:00
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Since glibc 2.19:
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_DEFAULT_SOURCE
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.TP 4
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Glibc 2.8 to 2.19:
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2013-09-04 06:46:28 +00:00
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_BSD_SOURCE || _SVID_SOURCE
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2010-10-03 15:39:37 +00:00
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.TP
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Before glibc 2.8:
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none
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2010-09-19 05:12:20 +00:00
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.RE
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2013-09-04 06:57:30 +00:00
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.BR h_errno :
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.RS 4
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.TP 4
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ctime.3, ffs.3, finite.3, flockfile.3, gethostbyname.3, getnameinfo.3, getw.3, insque.3, isalpha.3, popen.3, printf.3, siginterrupt.3, strdup.3, strtok.3, toascii.3, tzset.3, unlocked_stdio.3: Update FTM requirements (mostly _DEFAULT_SOURCE)
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2016-02-12 20:30:08 +00:00
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Since glibc 2.19
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_DEFAULT_SOURCE || _POSIX_C_SOURCE < 200809L
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.TP 4
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Glibc 2.12 to 2.19:
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access.2, chmod.2, chown.2, link.2, mkdir.2, open.2, readlink.2, rename.2, stat.2, symlink.2, unlink.2, utimensat.2, vfork.2, dirfd.3, fexecve.3, ffs.3, fmemopen.3, getcwd.3, gethostbyname.3, getline.3, mbsnrtowcs.3, mkdtemp.3, mkfifo.3, opendir.3, printf.3, psignal.3, qecvt.3, scandir.3, stpcpy.3, stpncpy.3, strdup.3, strnlen.3, strsignal.3, ualarm.3, usleep.3, wcpcpy.3, wcpncpy.3, wcscasecmp.3, wcsdup.3, wcsncasecmp.3, wcsnlen.3, wcsnrtombs.3: Simply FTM requirements
Looking at <features.h> (or feature_test_macros(7)), one can
see that when _XOPEN_SOURCE is defined with the value 700
(or greater), then _POSIX_C_SOURCE is defined with the value
200809L (or greater). Therefore, terms in the man pages such as
_XOPEN_SOURCE\ >=\ 700 || _POSIX_C_SOURCE\ >=\ 200809L
can be simpified to:
_POSIX_C_SOURCE\ >=\ 200809L
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2016-02-08 11:46:05 +00:00
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_BSD_SOURCE || _SVID_SOURCE || _POSIX_C_SOURCE < 200809L
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2013-09-04 06:57:30 +00:00
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.TP
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Before glibc 2.12:
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none
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.RE
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2007-07-08 12:11:40 +00:00
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.ad b
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2010-10-03 15:39:37 +00:00
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.PD
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2004-11-03 13:51:07 +00:00
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.SH DESCRIPTION
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2008-08-18 09:14:44 +00:00
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The
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2013-09-04 07:18:39 +00:00
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.BR gethostbyname* (),
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.BR gethostbyaddr* (),
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.BR herror (),
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2008-08-18 09:14:44 +00:00
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and
|
2013-09-04 07:18:39 +00:00
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.BR hstrerror ()
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2008-08-18 09:14:44 +00:00
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functions are obsolete.
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2007-10-14 18:29:55 +00:00
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Applications should use
|
2013-09-04 07:18:39 +00:00
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.BR getaddrinfo (3),
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.BR getnameinfo (3),
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2007-10-14 18:29:55 +00:00
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and
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2013-09-04 07:18:39 +00:00
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.BR gai_strerror (3)
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2007-10-14 18:29:55 +00:00
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instead.
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2004-11-03 13:51:07 +00:00
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The
|
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.BR gethostbyname ()
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function returns a structure of type
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.I hostent
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for the given host
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.IR name .
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Here
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.I name
|
2015-05-11 09:11:21 +00:00
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is either a hostname or an IPv4 address in standard dot notation (as for
|
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.BR inet_addr (3)).
|
2004-11-03 13:51:07 +00:00
|
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|
If
|
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.I name
|
2015-05-11 09:11:21 +00:00
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is an IPv4 address, no lookup is performed and
|
2004-11-03 13:51:07 +00:00
|
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|
.BR gethostbyname ()
|
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simply copies
|
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.I name
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into the
|
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.I h_name
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field and its
|
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|
.I struct in_addr
|
|
|
|
equivalent into the
|
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.I h_addr_list[0]
|
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|
|
field of the returned
|
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|
|
.I hostent
|
|
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structure.
|
|
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|
If
|
|
|
|
.I name
|
|
|
|
doesn't end in a dot and the environment variable
|
|
|
|
.B HOSTALIASES
|
|
|
|
is set, the alias file pointed to by
|
|
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|
.B HOSTALIASES
|
|
|
|
will first be searched for
|
|
|
|
.I name
|
|
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|
(see
|
|
|
|
.BR hostname (7)
|
|
|
|
for the file format).
|
|
|
|
The current domain and its parents are searched unless \fIname\fP
|
|
|
|
ends in a dot.
|
|
|
|
.PP
|
2007-05-12 09:06:04 +00:00
|
|
|
The
|
|
|
|
.BR gethostbyaddr ()
|
|
|
|
function returns a structure of type \fIhostent\fP
|
2004-11-03 13:51:07 +00:00
|
|
|
for the given host address \fIaddr\fP of length \fIlen\fP and address type
|
2007-04-12 22:42:49 +00:00
|
|
|
\fItype\fP.
|
|
|
|
Valid address types are
|
2004-11-03 13:51:07 +00:00
|
|
|
.B AF_INET
|
|
|
|
and
|
|
|
|
.BR AF_INET6 .
|
|
|
|
The host address argument is a pointer to a struct of a type depending
|
2007-06-20 20:48:54 +00:00
|
|
|
on the address type, for example a \fIstruct in_addr *\fP (probably
|
2007-06-21 22:55:04 +00:00
|
|
|
obtained via a call to
|
2007-05-12 13:12:02 +00:00
|
|
|
.BR inet_addr (3))
|
2007-06-22 19:42:52 +00:00
|
|
|
for address type
|
|
|
|
.BR AF_INET .
|
2004-11-03 13:51:07 +00:00
|
|
|
.PP
|
2007-05-12 09:06:04 +00:00
|
|
|
The
|
|
|
|
.BR sethostent ()
|
|
|
|
function specifies, if \fIstayopen\fP is true (1),
|
2007-04-12 22:42:49 +00:00
|
|
|
that a connected TCP socket should be used for the name server queries and
|
|
|
|
that the connection should remain open during successive queries.
|
|
|
|
Otherwise, name server queries will use UDP datagrams.
|
2004-11-03 13:51:07 +00:00
|
|
|
.PP
|
2007-05-12 09:06:04 +00:00
|
|
|
The
|
|
|
|
.BR endhostent ()
|
|
|
|
function ends the use of a TCP connection for name
|
2004-11-03 13:51:07 +00:00
|
|
|
server queries.
|
|
|
|
.PP
|
2007-05-12 09:06:04 +00:00
|
|
|
The (obsolete)
|
|
|
|
.BR herror ()
|
|
|
|
function prints the error message associated
|
2007-07-28 06:36:12 +00:00
|
|
|
with the current value of \fIh_errno\fP on \fIstderr\fP.
|
2004-11-03 13:51:07 +00:00
|
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.PP
|
2007-05-12 09:06:04 +00:00
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The (obsolete)
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|
|
.BR hstrerror ()
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function takes an error number
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2004-11-03 13:51:07 +00:00
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(typically \fIh_errno\fP) and returns the corresponding message string.
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.PP
|
2007-05-12 09:06:04 +00:00
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The domain name queries carried out by
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.BR gethostbyname ()
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and
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.BR gethostbyaddr ()
|
gethostbyname.3: "order" is obsolete
>> +.BR resolv.conf(5),
>> +a local name server
>> .BR named (8),
>> a broken out line from \fI/etc/hosts\fP, and the Network
>> Information Service (NIS or YP), depending upon the contents of the
>> \fIorder\fP line in
>> .IR /etc/host.conf .
>
> Your patch didn't change the last few lines, but you may be able to
> help... Is the reference to "order" and /etc/host.conf on this page not
> obsolete by now. Looking at host.conf(5), one sees,
No, order *is* obsolete.
> Historical
> The nsswitch.conf(5) file is the modern way of controlling the
> order of host lookups.
>
> In glibc 2.4 and earlier, the following keyword is recognized:
>
> order This keyword specifies how host lookups are to be per‐
> formed. It should be followed by one or more lookup
> methods, separated by commas. Valid methods are bind,
> hosts, and nis.
>
> So, it looks like some fix is required here also. Right?
Yes. I didn't know how we wanted to talk about this particular topic.
The use of "order" is obsolete as of 2.5.
The following is a sketch of how I'd rewrite this to be more correct,
I'm out of time for today, but if you want to fix the formatting and
check it in that would be awesome.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-05-01 02:01:26 +00:00
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rely on the Name Service Switch
|
2015-04-30 08:45:42 +00:00
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.RB ( nsswitch.conf (5))
|
gethostbyname.3: "order" is obsolete
>> +.BR resolv.conf(5),
>> +a local name server
>> .BR named (8),
>> a broken out line from \fI/etc/hosts\fP, and the Network
>> Information Service (NIS or YP), depending upon the contents of the
>> \fIorder\fP line in
>> .IR /etc/host.conf .
>
> Your patch didn't change the last few lines, but you may be able to
> help... Is the reference to "order" and /etc/host.conf on this page not
> obsolete by now. Looking at host.conf(5), one sees,
No, order *is* obsolete.
> Historical
> The nsswitch.conf(5) file is the modern way of controlling the
> order of host lookups.
>
> In glibc 2.4 and earlier, the following keyword is recognized:
>
> order This keyword specifies how host lookups are to be per‐
> formed. It should be followed by one or more lookup
> methods, separated by commas. Valid methods are bind,
> hosts, and nis.
>
> So, it looks like some fix is required here also. Right?
Yes. I didn't know how we wanted to talk about this particular topic.
The use of "order" is obsolete as of 2.5.
The following is a sketch of how I'd rewrite this to be more correct,
I'm out of time for today, but if you want to fix the formatting and
check it in that would be awesome.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-05-01 02:01:26 +00:00
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configured sources or a local name server
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.RB ( named (8)).
|
2015-04-29 17:24:51 +00:00
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The default action is to query the Name Service Switch
|
2015-04-30 08:45:42 +00:00
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.RB ( nsswitch.conf(5))
|
gethostbyname.3: "order" is obsolete
>> +.BR resolv.conf(5),
>> +a local name server
>> .BR named (8),
>> a broken out line from \fI/etc/hosts\fP, and the Network
>> Information Service (NIS or YP), depending upon the contents of the
>> \fIorder\fP line in
>> .IR /etc/host.conf .
>
> Your patch didn't change the last few lines, but you may be able to
> help... Is the reference to "order" and /etc/host.conf on this page not
> obsolete by now. Looking at host.conf(5), one sees,
No, order *is* obsolete.
> Historical
> The nsswitch.conf(5) file is the modern way of controlling the
> order of host lookups.
>
> In glibc 2.4 and earlier, the following keyword is recognized:
>
> order This keyword specifies how host lookups are to be per‐
> formed. It should be followed by one or more lookup
> methods, separated by commas. Valid methods are bind,
> hosts, and nis.
>
> So, it looks like some fix is required here also. Right?
Yes. I didn't know how we wanted to talk about this particular topic.
The use of "order" is obsolete as of 2.5.
The following is a sketch of how I'd rewrite this to be more correct,
I'm out of time for today, but if you want to fix the formatting and
check it in that would be awesome.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-05-01 02:01:26 +00:00
|
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|
configured sources, failing that, a local name server
|
2015-04-30 08:45:42 +00:00
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|
|
.RB ( named (8)).
|
membarrier.2, crypt.3, dladdr.3, duplocale.3, fmemopen.3, gethostbyname.3, mallopt.3, newlocale.3, resolver.3, sigsetops.3, strfmon.3, tzset.3, console_ioctl.4, lirc.4, loop.4, vcs.4, dir_colors.5, locale.5, proc.5, tzfile.5, attributes.7, bootparam.7, capabilities.7, feature_test_macros.7, icmp.7, man-pages.7, netlink.7, path_resolution.7, pipe.7, socket.7, unix.7, vdso.7: ffix
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2016-02-03 08:14:22 +00:00
|
|
|
.\"
|
gethostbyname.3: "order" is obsolete
>> +.BR resolv.conf(5),
>> +a local name server
>> .BR named (8),
>> a broken out line from \fI/etc/hosts\fP, and the Network
>> Information Service (NIS or YP), depending upon the contents of the
>> \fIorder\fP line in
>> .IR /etc/host.conf .
>
> Your patch didn't change the last few lines, but you may be able to
> help... Is the reference to "order" and /etc/host.conf on this page not
> obsolete by now. Looking at host.conf(5), one sees,
No, order *is* obsolete.
> Historical
> The nsswitch.conf(5) file is the modern way of controlling the
> order of host lookups.
>
> In glibc 2.4 and earlier, the following keyword is recognized:
>
> order This keyword specifies how host lookups are to be per‐
> formed. It should be followed by one or more lookup
> methods, separated by commas. Valid methods are bind,
> hosts, and nis.
>
> So, it looks like some fix is required here also. Right?
Yes. I didn't know how we wanted to talk about this particular topic.
The use of "order" is obsolete as of 2.5.
The following is a sketch of how I'd rewrite this to be more correct,
I'm out of time for today, but if you want to fix the formatting and
check it in that would be awesome.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-05-01 02:01:26 +00:00
|
|
|
.SS Historical
|
|
|
|
The
|
|
|
|
.BR nsswitch.conf (5)
|
|
|
|
file is the modern way of controlling the order of host lookups.
|
|
|
|
.PP
|
|
|
|
In glibc 2.4 and earlier, the
|
|
|
|
.I order
|
|
|
|
keyword was used to control the order of host lookups as defined in
|
|
|
|
.IR /etc/host.conf
|
2015-05-04 20:11:58 +00:00
|
|
|
.RB ( host.conf (5)).
|
gethostbyname.3: "order" is obsolete
>> +.BR resolv.conf(5),
>> +a local name server
>> .BR named (8),
>> a broken out line from \fI/etc/hosts\fP, and the Network
>> Information Service (NIS or YP), depending upon the contents of the
>> \fIorder\fP line in
>> .IR /etc/host.conf .
>
> Your patch didn't change the last few lines, but you may be able to
> help... Is the reference to "order" and /etc/host.conf on this page not
> obsolete by now. Looking at host.conf(5), one sees,
No, order *is* obsolete.
> Historical
> The nsswitch.conf(5) file is the modern way of controlling the
> order of host lookups.
>
> In glibc 2.4 and earlier, the following keyword is recognized:
>
> order This keyword specifies how host lookups are to be per‐
> formed. It should be followed by one or more lookup
> methods, separated by commas. Valid methods are bind,
> hosts, and nis.
>
> So, it looks like some fix is required here also. Right?
Yes. I didn't know how we wanted to talk about this particular topic.
The use of "order" is obsolete as of 2.5.
The following is a sketch of how I'd rewrite this to be more correct,
I'm out of time for today, but if you want to fix the formatting and
check it in that would be awesome.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-05-01 02:01:26 +00:00
|
|
|
|
2004-11-03 13:51:07 +00:00
|
|
|
.PP
|
|
|
|
The \fIhostent\fP structure is defined in \fI<netdb.h>\fP as follows:
|
|
|
|
.sp
|
2007-12-19 05:53:30 +00:00
|
|
|
.in +4n
|
2004-11-03 13:51:07 +00:00
|
|
|
.nf
|
|
|
|
.ne 7
|
|
|
|
struct hostent {
|
2007-04-03 15:32:52 +00:00
|
|
|
char *h_name; /* official name of host */
|
|
|
|
char **h_aliases; /* alias list */
|
|
|
|
int h_addrtype; /* host address type */
|
|
|
|
int h_length; /* length of address */
|
|
|
|
char **h_addr_list; /* list of addresses */
|
2004-11-03 13:51:07 +00:00
|
|
|
}
|
2007-04-03 15:32:52 +00:00
|
|
|
#define h_addr h_addr_list[0] /* for backward compatibility */
|
2004-11-03 13:51:07 +00:00
|
|
|
.fi
|
2007-12-19 05:53:30 +00:00
|
|
|
.in
|
2004-11-03 13:51:07 +00:00
|
|
|
.PP
|
|
|
|
The members of the \fIhostent\fP structure are:
|
|
|
|
.TP
|
|
|
|
.I h_name
|
|
|
|
The official name of the host.
|
|
|
|
.TP
|
|
|
|
.I h_aliases
|
epoll_ctl.2, execve.2, recv.2, timer_create.2, wait.2, argz_add.3, basename.3, dlopen.3, exec.3, fopencookie.3, fts.3, getaddrinfo.3, getcwd.3, gethostbyname.3, getifaddrs.3, getipnodebyname.3, getlogin.3, getnetent.3, getprotoent.3, getrpcent.3, getservent.3, getusershell.3, glob.3, if_nameindex.3, inet_ntop.3, lio_listio.3, mblen.3, mbrlen.3, mbrtowc.3, mbsinit.3, mbsnrtowcs.3, mbsrtowcs.3, mbstowcs.3, mq_notify.3, ptsname.3, realpath.3, setnetgrent.3, sigvec.3, strsignal.3, strtok.3, wcrtomb.3, wcsnrtombs.3, wcsrtombs.3, wcstombs.3, xdr.3: Global fix of "NULL pointer"
Change "NULL pointer: to "NUL " or null pointer".
POSIX uses the term "null pointer", not "NULL pointer".
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-01-03 02:01:50 +00:00
|
|
|
An array of alternative names for the host, terminated by a null pointer.
|
2004-11-03 13:51:07 +00:00
|
|
|
.TP
|
|
|
|
.I h_addrtype
|
|
|
|
The type of address; always
|
|
|
|
.B AF_INET
|
|
|
|
or
|
|
|
|
.B AF_INET6
|
|
|
|
at present.
|
|
|
|
.TP
|
|
|
|
.I h_length
|
|
|
|
The length of the address in bytes.
|
|
|
|
.TP
|
|
|
|
.I h_addr_list
|
2006-01-13 02:09:44 +00:00
|
|
|
An array of pointers to network addresses for the host (in network byte
|
epoll_ctl.2, execve.2, recv.2, timer_create.2, wait.2, argz_add.3, basename.3, dlopen.3, exec.3, fopencookie.3, fts.3, getaddrinfo.3, getcwd.3, gethostbyname.3, getifaddrs.3, getipnodebyname.3, getlogin.3, getnetent.3, getprotoent.3, getrpcent.3, getservent.3, getusershell.3, glob.3, if_nameindex.3, inet_ntop.3, lio_listio.3, mblen.3, mbrlen.3, mbrtowc.3, mbsinit.3, mbsnrtowcs.3, mbsrtowcs.3, mbstowcs.3, mq_notify.3, ptsname.3, realpath.3, setnetgrent.3, sigvec.3, strsignal.3, strtok.3, wcrtomb.3, wcsnrtombs.3, wcsrtombs.3, wcstombs.3, xdr.3: Global fix of "NULL pointer"
Change "NULL pointer: to "NUL " or null pointer".
POSIX uses the term "null pointer", not "NULL pointer".
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-01-03 02:01:50 +00:00
|
|
|
order), terminated by a null pointer.
|
2004-11-03 13:51:07 +00:00
|
|
|
.TP
|
|
|
|
.I h_addr
|
|
|
|
The first address in \fIh_addr_list\fP for backward compatibility.
|
getent.1, intro.1, time.1, _exit.2, _syscall.2, accept.2, access.2, acct.2, adjtimex.2, alarm.2, alloc_hugepages.2, arch_prctl.2, bdflush.2, bind.2, brk.2, cacheflush.2, capget.2, chdir.2, chmod.2, chown.2, chroot.2, clock_getres.2, clock_nanosleep.2, clone.2, close.2, connect.2, create_module.2, delete_module.2, dup.2, epoll_create.2, epoll_ctl.2, epoll_wait.2, eventfd.2, execve.2, exit_group.2, faccessat.2, fchmodat.2, fchownat.2, fcntl.2, flock.2, fork.2, fstatat.2, fsync.2, futex.2, futimesat.2, get_kernel_syms.2, get_robust_list.2, get_thread_area.2, getcpu.2, getdents.2, getdomainname.2, getgid.2, getgroups.2, gethostname.2, getitimer.2, getpagesize.2, getpeername.2, getpid.2, getpriority.2, getresuid.2, getrlimit.2, getrusage.2, getsid.2, getsockname.2, getsockopt.2, gettid.2, gettimeofday.2, getuid.2, getunwind.2, getxattr.2, idle.2, init_module.2, inotify_add_watch.2, inotify_init.2, inotify_rm_watch.2, intro.2, io_cancel.2, io_destroy.2, io_getevents.2, io_setup.2, io_submit.2, ioctl.2, ioctl_list.2, ioperm.2, iopl.2, ioprio_set.2, ipc.2, kcmp.2, kill.2, killpg.2, link.2, linkat.2, listen.2, listxattr.2, llseek.2, lookup_dcookie.2, lseek.2, madvise.2, migrate_pages.2, mincore.2, mkdir.2, mkdirat.2, mknod.2, mknodat.2, mlock.2, mmap.2, mmap2.2, modify_ldt.2, mount.2, move_pages.2, mprotect.2, mq_getsetattr.2, mremap.2, msgctl.2, msgget.2, msgop.2, msync.2, nanosleep.2, nfsservctl.2, nice.2, open.2, openat.2, outb.2, pause.2, pciconfig_read.2, perf_event_open.2, perfmonctl.2, personality.2, pipe.2, pivot_root.2, poll.2, posix_fadvise.2, prctl.2, pread.2, process_vm_readv.2, ptrace.2, query_module.2, quotactl.2, read.2, readahead.2, readdir.2, readlink.2, readlinkat.2, readv.2, reboot.2, recv.2, remap_file_pages.2, removexattr.2, rename.2, renameat.2, rmdir.2, rt_sigqueueinfo.2, sched_get_priority_max.2, sched_rr_get_interval.2, sched_setaffinity.2, sched_setparam.2, sched_setscheduler.2, sched_yield.2, select.2, semctl.2, semget.2, semop.2, send.2, sendfile.2, set_thread_area.2, set_tid_address.2, seteuid.2, setfsgid.2, setfsuid.2, setgid.2, setpgid.2, setresuid.2, setreuid.2, setsid.2, setuid.2, setup.2, setxattr.2, shmctl.2, shmget.2, shmop.2, shutdown.2, sigaction.2, sigaltstack.2, signal.2, signalfd.2, sigpending.2, sigprocmask.2, sigreturn.2, sigsuspend.2, sigwaitinfo.2, socket.2, socketcall.2, socketpair.2, splice.2, stat.2, statfs.2, stime.2, swapon.2, symlink.2, symlinkat.2, sync.2, sync_file_range.2, sysctl.2, sysfs.2, sysinfo.2, syslog.2, tee.2, time.2, timerfd_create.2, times.2, tkill.2, truncate.2, umask.2, umount.2, uname.2, unimplemented.2, unlink.2, unlinkat.2, uselib.2, ustat.2, utime.2, utimensat.2, vfork.2, vhangup.2, vm86.2, vmsplice.2, wait.2, wait4.2, write.2, CPU_SET.3, INFINITY.3, MB_CUR_MAX.3, MB_LEN_MAX.3, __setfpucw.3, a64l.3, abort.3, abs.3, acos.3, acosh.3, addseverity.3, adjtime.3, aio_cancel.3, aio_error.3, aio_fsync.3, aio_read.3, aio_return.3, aio_suspend.3, aio_write.3, alloca.3, argz_add.3, asin.3, asinh.3, asprintf.3, assert.3, assert_perror.3, atan.3, atan2.3, atanh.3, atexit.3, atof.3, atoi.3, backtrace.3, basename.3, bcmp.3, bcopy.3, bindresvport.3, bsd_signal.3, bsearch.3, bstring.3, btowc.3, btree.3, byteorder.3, bzero.3, cabs.3, cacos.3, cacosh.3, canonicalize_file_name.3, carg.3, casin.3, casinh.3, catan.3, catanh.3, catgets.3, catopen.3, cbrt.3, ccos.3, ccosh.3, ceil.3, cerf.3, cexp.3, cexp2.3, cfree.3, cimag.3, clearenv.3, clock.3, clock_getcpuclockid.3, clog.3, clog10.3, clog2.3, closedir.3, cmsg.3, confstr.3, conj.3, copysign.3, cos.3, cosh.3, cpow.3, cproj.3, creal.3, crypt.3, csin.3, csinh.3, csqrt.3, ctan.3, ctanh.3, ctermid.3, ctime.3, daemon.3, dbopen.3, des_crypt.3, difftime.3, dirfd.3, div.3, dl_iterate_phdr.3, dlopen.3, dprintf.3, drand48.3, drand48_r.3, dysize.3, ecvt.3, ecvt_r.3, encrypt.3, end.3, endian.3, envz_add.3, erf.3, erfc.3, err.3, errno.3, error.3, ether_aton.3, euidaccess.3, exec.3, exit.3, exp.3, exp10.3, exp2.3, expm1.3, fabs.3, fclose.3, fcloseall.3, fdim.3, fenv.3, ferror.3, fexecve.3, fflush.3, ffs.3, fgetgrent.3, fgetpwent.3, fgetwc.3, fgetws.3, finite.3, flockfile.3, floor.3, fma.3, fmax.3, fmemopen.3, fmin.3, fmod.3, fmtmsg.3, fnmatch.3, fopen.3, fpathconf.3, fpclassify.3, fpurge.3, fputwc.3, fputws.3, fread.3, frexp.3, fseek.3, fseeko.3, ftime.3, ftok.3, fts.3, ftw.3, futimes.3, fwide.3, gamma.3, gcvt.3, getaddrinfo.3, getaddrinfo_a.3, getauxval.3, getcontext.3, getcwd.3, getdate.3, getdirentries.3, getdtablesize.3, getenv.3, getfsent.3, getgrent.3, getgrent_r.3, getgrnam.3, getgrouplist.3, gethostbyname.3, gethostid.3, getipnodebyname.3, getline.3, getloadavg.3, getlogin.3, getmntent.3, getnameinfo.3, getnetent.3, getnetent_r.3, getopt.3, getpass.3, getprotoent.3, getprotoent_r.3, getpt.3, getpw.3, getpwent.3, getpwent_r.3, getpwnam.3, getrpcent.3, getrpcent_r.3, getrpcport.3, gets.3, getservent.3, getservent_r.3, getspnam.3, getttyent.3, getumask.3, getusershell.3, getutent.3, getw.3, getwchar.3, glob.3, grantpt.3, gsignal.3, hash.3, hsearch.3, hypot.3, iconv.3, iconv_close.3, iconv_open.3, ilogb.3, index.3, inet.3, inet_ntop.3, inet_pton.3, infnan.3, initgroups.3, insque.3, intro.3, isalpha.3, isatty.3, isgreater.3, iswalnum.3, iswalpha.3, iswblank.3, iswcntrl.3, iswctype.3, iswdigit.3, iswgraph.3, iswlower.3, iswprint.3, iswpunct.3, iswspace.3, iswupper.3, iswxdigit.3, j0.3, key_setsecret.3, ldexp.3, lgamma.3, lio_listio.3, localeconv.3, lockf.3, log.3, log10.3, log1p.3, log2.3, logb.3, login.3, longjmp.3, lrint.3, lround.3, lsearch.3, lseek64.3, makecontext.3, makedev.3, malloc.3, malloc_hook.3, mblen.3, mbrlen.3, mbrtowc.3, mbsinit.3, mbsnrtowcs.3, mbsrtowcs.3, mbstowcs.3, mbtowc.3, memccpy.3, memchr.3, memcmp.3, memcpy.3, memfrob.3, memmem.3, memmove.3, mempcpy.3, memset.3, mkdtemp.3, mkfifo.3, mkfifoat.3, mkstemp.3, mktemp.3, modf.3, mpool.3, mq_close.3, mq_getattr.3, mq_notify.3, mq_open.3, mq_receive.3, mq_send.3, mq_unlink.3, mtrace.3, nan.3, netlink.3, nextafter.3, nl_langinfo.3, offsetof.3, on_exit.3, opendir.3, openpty.3, perror.3, popen.3, posix_fallocate.3, posix_memalign.3, posix_openpt.3, pow.3, pow10.3, printf.3, profil.3, program_invocation_name.3, psignal.3, pthread_kill_other_threads_np.3, ptsname.3, putenv.3, putgrent.3, putpwent.3, puts.3, putwchar.3, qecvt.3, qsort.3, queue.3, raise.3, rand.3, random.3, random_r.3, rcmd.3, re_comp.3, readdir.3, realpath.3, recno.3, regex.3, remainder.3, remove.3, remquo.3, resolver.3, rewinddir.3, rexec.3, rint.3, round.3, rpc.3, rpmatch.3, rtime.3, rtnetlink.3, scalb.3, scalbln.3, scandir.3, scandirat.3, scanf.3, seekdir.3, sem_close.3, sem_destroy.3, sem_getvalue.3, sem_init.3, sem_open.3, sem_post.3, sem_unlink.3, sem_wait.3, setaliasent.3, setbuf.3, setenv.3, setjmp.3, setlocale.3, setlogmask.3, setnetgrent.3, shm_open.3, siginterrupt.3, signbit.3, significand.3, sigpause.3, sigqueue.3, sigset.3, sigsetops.3, sigvec.3, sin.3, sincos.3, sinh.3, sleep.3, sockatmark.3, sqrt.3, statvfs.3, stdarg.3, stdin.3, stdio.3, stdio_ext.3, stpcpy.3, stpncpy.3, strcasecmp.3, strcat.3, strchr.3, strcmp.3, strcoll.3, strcpy.3, strdup.3, strerror.3, strfmon.3, strfry.3, strftime.3, string.3, strlen.3, strnlen.3, strpbrk.3, strptime.3, strsep.3, strsignal.3, strspn.3, strstr.3, strtod.3, strtoimax.3, strtok.3, strtol.3, strtoul.3, strverscmp.3, strxfrm.3, swab.3, sysconf.3, syslog.3, system.3, sysv_signal.3, tan.3, tanh.3, tcgetpgrp.3, tcgetsid.3, telldir.3, tempnam.3, termios.3, tgamma.3, timegm.3, timeradd.3, tmpfile.3, tmpnam.3, toascii.3, toupper.3, towctrans.3, towlower.3, towupper.3, trunc.3, tsearch.3, ttyname.3, ttyslot.3, tzset.3, ualarm.3, ulimit.3, ungetwc.3, unlocked_stdio.3, unlockpt.3, updwtmp.3, usleep.3, wcpcpy.3, wcpncpy.3, wcrtomb.3, wcscasecmp.3, wcscat.3, wcschr.3, wcscmp.3, wcscpy.3, wcscspn.3, wcsdup.3, wcslen.3, wcsncasecmp.3, wcsncat.3, wcsncmp.3, wcsncpy.3, wcsnlen.3, wcsnrtombs.3, wcspbrk.3, wcsrchr.3, wcsrtombs.3, wcsspn.3, wcsstr.3, wcstoimax.3, wcstok.3, wcstombs.3, wcswidth.3, wctob.3, wctomb.3, wctrans.3, wctype.3, wcwidth.3, wmemchr.3, wmemcmp.3, wmemcpy.3, wmemmove.3, wmemset.3, wordexp.3, wprintf.3, xcrypt.3, xdr.3, y0.3, cciss.4, console.4, console_codes.4, console_ioctl.4, dsp56k.4, fd.4, full.4, hd.4, hpsa.4, initrd.4, intro.4, lp.4, mem.4, mouse.4, null.4, pts.4, ram.4, random.4, rtc.4, sk98lin.4, st.4, tty.4, ttyS.4, tty_ioctl.4, vcs.4, wavelan.4, acct.5, charmap.5, dir_colors.5, filesystems.5, ftpusers.5, group.5, host.conf.5, hosts.5, hosts.equiv.5, intro.5, issue.5, locale.5, motd.5, networks.5, nologin.5, nscd.conf.5, passwd.5, proc.5, protocols.5, resolv.conf.5, rpc.5, securetty.5, services.5, shells.5, termcap.5, ttytype.5, utmp.5, armscii-8.7, arp.7, ascii.7, bootparam.7, capabilities.7, charsets.7, complex.7, cp1251.7, credentials.7, ddp.7, environ.7, epoll.7, fifo.7, futex.7, glob.7, hier.7, icmp.7, inotify.7, intro.7, ip.7, ipv6.7, iso_8859-1.7, iso_8859-10.7, iso_8859-11.7, iso_8859-13.7, iso_8859-14.7, iso_8859-15.7, iso_8859-16.7, iso_8859-2.7, iso_8859-3.7, iso_8859-4.7, iso_8859-5.7, iso_8859-6.7, iso_8859-7.7, iso_8859-8.7, iso_8859-9.7, koi8-r.7, koi8-u.7, locale.7, mailaddr.7, man.7, mq_overview.7, netdevice.7, netlink.7, numa.7, packet.7, path_resolution.7, pipe.7, posixoptions.7, pthreads.7, pty.7, raw.7, regex.7, rtld-audit.7, rtnetlink.7, sem_overview.7, shm_overview.7, sigevent.7, signal.7, socket.7, standards.7, suffixes.7, svipc.7, tcp.7, termio.7, time.7, udp.7, udplite.7, unicode.7, unix.7, uri.7, utf-8.7, x25.7, nscd.8, sync.8, tzselect.8, zdump.8, zic.8: Global fix: remove unneeded double quotes in .SH headings
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2013-02-24 18:01:36 +00:00
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.SH RETURN VALUE
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2004-11-03 13:51:07 +00:00
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The
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.BR gethostbyname ()
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and
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2005-10-19 07:07:02 +00:00
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.BR gethostbyaddr ()
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2004-11-03 13:51:07 +00:00
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functions return the
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.I hostent
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epoll_ctl.2, execve.2, recv.2, timer_create.2, wait.2, argz_add.3, basename.3, dlopen.3, exec.3, fopencookie.3, fts.3, getaddrinfo.3, getcwd.3, gethostbyname.3, getifaddrs.3, getipnodebyname.3, getlogin.3, getnetent.3, getprotoent.3, getrpcent.3, getservent.3, getusershell.3, glob.3, if_nameindex.3, inet_ntop.3, lio_listio.3, mblen.3, mbrlen.3, mbrtowc.3, mbsinit.3, mbsnrtowcs.3, mbsrtowcs.3, mbstowcs.3, mq_notify.3, ptsname.3, realpath.3, setnetgrent.3, sigvec.3, strsignal.3, strtok.3, wcrtomb.3, wcsnrtombs.3, wcsrtombs.3, wcstombs.3, xdr.3: Global fix of "NULL pointer"
Change "NULL pointer: to "NUL " or null pointer".
POSIX uses the term "null pointer", not "NULL pointer".
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-01-03 02:01:50 +00:00
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structure or a null pointer if an error occurs.
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2007-04-12 22:42:49 +00:00
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On error, the
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2004-11-03 13:51:07 +00:00
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.I h_errno
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variable holds an error number.
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When non-NULL, the return value may point at static data, see the notes below.
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.SH ERRORS
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The variable \fIh_errno\fP can have the following values:
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.TP
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.B HOST_NOT_FOUND
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The specified host is unknown.
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.TP
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2015-04-12 08:09:16 +00:00
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.BR NO_DATA
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2004-11-03 13:51:07 +00:00
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The requested name is valid but does not have an IP address.
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2015-04-12 08:12:27 +00:00
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Another type of request to the name server for this domain
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may return an answer.
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2015-04-12 08:09:16 +00:00
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The constant
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.BR NO_ADDRESS
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is a synonym for
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.BR NO_DATA .
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2004-11-03 13:51:07 +00:00
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.TP
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.B NO_RECOVERY
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2010-01-16 17:01:12 +00:00
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A nonrecoverable name server error occurred.
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2004-11-03 13:51:07 +00:00
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.TP
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.B TRY_AGAIN
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2007-04-12 22:42:49 +00:00
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A temporary error occurred on an authoritative name server.
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Try again later.
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2004-11-03 13:51:07 +00:00
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.SH FILES
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.TP
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.I /etc/host.conf
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resolver configuration file
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.TP
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.I /etc/hosts
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host database file
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2005-12-13 15:22:17 +00:00
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.TP
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.I /etc/nsswitch.conf
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name service switch configuration
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2015-04-08 02:56:14 +00:00
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.SH ATTRIBUTES
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For an explanation of the terms used in this section, see
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.BR attributes (7).
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.TS
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allbox;
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lbw18 lb lbw29
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l l l.
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Interface Attribute Value
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T{
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.BR gethostbyname ()
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T} Thread safety T{
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MT-Unsafe race:hostbyname env
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.br
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locale
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T}
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T{
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.BR gethostbyaddr ()
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T} Thread safety T{
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MT-Unsafe race:hostbyaddr env
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.br
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locale
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T}
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T{
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.BR sethostent (),
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.br
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.BR endhostent (),
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.br
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.BR gethostent_r ()
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T} Thread safety T{
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MT-Unsafe race:hostent env
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.br
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locale
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T}
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T{
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.BR herror (),
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.br
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.BR hstrerror ()
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T} Thread safety MT-Safe
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T{
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.BR gethostent ()
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T} Thread safety T{
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MT-Unsafe race:hostent
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.br
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race:hostentbuf env locale
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T}
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T{
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.BR gethostbyname2 ()
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T} Thread safety T{
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MT-Unsafe race:hostbyname2
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.br
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env locale
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T}
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T{
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.BR gethostbyaddr_r (),
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.BR gethostbyname_r (),
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.BR gethostbyname2_r ()
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T} Thread safety MT-Safe env locale
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.TE
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In the above table,
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.I hostent
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in
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.I race:hostent
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signifies that if any of the functions
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.BR sethostent (3),
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.BR gethostent (3),
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.BR gethostent_r (3),
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or
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.BR endhostent (3)
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are used in parallel in different threads of a program,
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then data races could occur.
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getent.1, intro.1, time.1, _exit.2, _syscall.2, accept.2, access.2, acct.2, adjtimex.2, alarm.2, alloc_hugepages.2, arch_prctl.2, bdflush.2, bind.2, brk.2, cacheflush.2, capget.2, chdir.2, chmod.2, chown.2, chroot.2, clock_getres.2, clock_nanosleep.2, clone.2, close.2, connect.2, create_module.2, delete_module.2, dup.2, epoll_create.2, epoll_ctl.2, epoll_wait.2, eventfd.2, execve.2, exit_group.2, faccessat.2, fchmodat.2, fchownat.2, fcntl.2, flock.2, fork.2, fstatat.2, fsync.2, futex.2, futimesat.2, get_kernel_syms.2, get_robust_list.2, get_thread_area.2, getcpu.2, getdents.2, getdomainname.2, getgid.2, getgroups.2, gethostname.2, getitimer.2, getpagesize.2, getpeername.2, getpid.2, getpriority.2, getresuid.2, getrlimit.2, getrusage.2, getsid.2, getsockname.2, getsockopt.2, gettid.2, gettimeofday.2, getuid.2, getunwind.2, getxattr.2, idle.2, init_module.2, inotify_add_watch.2, inotify_init.2, inotify_rm_watch.2, intro.2, io_cancel.2, io_destroy.2, io_getevents.2, io_setup.2, io_submit.2, ioctl.2, ioctl_list.2, ioperm.2, iopl.2, ioprio_set.2, ipc.2, kcmp.2, kill.2, killpg.2, link.2, linkat.2, listen.2, listxattr.2, llseek.2, lookup_dcookie.2, lseek.2, madvise.2, migrate_pages.2, mincore.2, mkdir.2, mkdirat.2, mknod.2, mknodat.2, mlock.2, mmap.2, mmap2.2, modify_ldt.2, mount.2, move_pages.2, mprotect.2, mq_getsetattr.2, mremap.2, msgctl.2, msgget.2, msgop.2, msync.2, nanosleep.2, nfsservctl.2, nice.2, open.2, openat.2, outb.2, pause.2, pciconfig_read.2, perf_event_open.2, perfmonctl.2, personality.2, pipe.2, pivot_root.2, poll.2, posix_fadvise.2, prctl.2, pread.2, process_vm_readv.2, ptrace.2, query_module.2, quotactl.2, read.2, readahead.2, readdir.2, readlink.2, readlinkat.2, readv.2, reboot.2, recv.2, remap_file_pages.2, removexattr.2, rename.2, renameat.2, rmdir.2, rt_sigqueueinfo.2, sched_get_priority_max.2, sched_rr_get_interval.2, sched_setaffinity.2, sched_setparam.2, sched_setscheduler.2, sched_yield.2, select.2, semctl.2, semget.2, semop.2, send.2, sendfile.2, set_thread_area.2, set_tid_address.2, seteuid.2, setfsgid.2, setfsuid.2, setgid.2, setpgid.2, setresuid.2, setreuid.2, setsid.2, setuid.2, setup.2, setxattr.2, shmctl.2, shmget.2, shmop.2, shutdown.2, sigaction.2, sigaltstack.2, signal.2, signalfd.2, sigpending.2, sigprocmask.2, sigreturn.2, sigsuspend.2, sigwaitinfo.2, socket.2, socketcall.2, socketpair.2, splice.2, stat.2, statfs.2, stime.2, swapon.2, symlink.2, symlinkat.2, sync.2, sync_file_range.2, sysctl.2, sysfs.2, sysinfo.2, syslog.2, tee.2, time.2, timerfd_create.2, times.2, tkill.2, truncate.2, umask.2, umount.2, uname.2, unimplemented.2, unlink.2, unlinkat.2, uselib.2, ustat.2, utime.2, utimensat.2, vfork.2, vhangup.2, vm86.2, vmsplice.2, wait.2, wait4.2, write.2, CPU_SET.3, INFINITY.3, MB_CUR_MAX.3, MB_LEN_MAX.3, __setfpucw.3, a64l.3, abort.3, abs.3, acos.3, acosh.3, addseverity.3, adjtime.3, aio_cancel.3, aio_error.3, aio_fsync.3, aio_read.3, aio_return.3, aio_suspend.3, aio_write.3, alloca.3, argz_add.3, asin.3, asinh.3, asprintf.3, assert.3, assert_perror.3, atan.3, atan2.3, atanh.3, atexit.3, atof.3, atoi.3, backtrace.3, basename.3, bcmp.3, bcopy.3, bindresvport.3, bsd_signal.3, bsearch.3, bstring.3, btowc.3, btree.3, byteorder.3, bzero.3, cabs.3, cacos.3, cacosh.3, canonicalize_file_name.3, carg.3, casin.3, casinh.3, catan.3, catanh.3, catgets.3, catopen.3, cbrt.3, ccos.3, ccosh.3, ceil.3, cerf.3, cexp.3, cexp2.3, cfree.3, cimag.3, clearenv.3, clock.3, clock_getcpuclockid.3, clog.3, clog10.3, clog2.3, closedir.3, cmsg.3, confstr.3, conj.3, copysign.3, cos.3, cosh.3, cpow.3, cproj.3, creal.3, crypt.3, csin.3, csinh.3, csqrt.3, ctan.3, ctanh.3, ctermid.3, ctime.3, daemon.3, dbopen.3, des_crypt.3, difftime.3, dirfd.3, div.3, dl_iterate_phdr.3, dlopen.3, dprintf.3, drand48.3, drand48_r.3, dysize.3, ecvt.3, ecvt_r.3, encrypt.3, end.3, endian.3, envz_add.3, erf.3, erfc.3, err.3, errno.3, error.3, ether_aton.3, euidaccess.3, exec.3, exit.3, exp.3, exp10.3, exp2.3, expm1.3, fabs.3, fclose.3, fcloseall.3, fdim.3, fenv.3, ferror.3, fexecve.3, fflush.3, ffs.3, fgetgrent.3, fgetpwent.3, fgetwc.3, fgetws.3, finite.3, flockfile.3, floor.3, fma.3, fmax.3, fmemopen.3, fmin.3, fmod.3, fmtmsg.3, fnmatch.3, fopen.3, fpathconf.3, fpclassify.3, fpurge.3, fputwc.3, fputws.3, fread.3, frexp.3, fseek.3, fseeko.3, ftime.3, ftok.3, fts.3, ftw.3, futimes.3, fwide.3, gamma.3, gcvt.3, getaddrinfo.3, getaddrinfo_a.3, getauxval.3, getcontext.3, getcwd.3, getdate.3, getdirentries.3, getdtablesize.3, getenv.3, getfsent.3, getgrent.3, getgrent_r.3, getgrnam.3, getgrouplist.3, gethostbyname.3, gethostid.3, getipnodebyname.3, getline.3, getloadavg.3, getlogin.3, getmntent.3, getnameinfo.3, getnetent.3, getnetent_r.3, getopt.3, getpass.3, getprotoent.3, getprotoent_r.3, getpt.3, getpw.3, getpwent.3, getpwent_r.3, getpwnam.3, getrpcent.3, getrpcent_r.3, getrpcport.3, gets.3, getservent.3, getservent_r.3, getspnam.3, getttyent.3, getumask.3, getusershell.3, getutent.3, getw.3, getwchar.3, glob.3, grantpt.3, gsignal.3, hash.3, hsearch.3, hypot.3, iconv.3, iconv_close.3, iconv_open.3, ilogb.3, index.3, inet.3, inet_ntop.3, inet_pton.3, infnan.3, initgroups.3, insque.3, intro.3, isalpha.3, isatty.3, isgreater.3, iswalnum.3, iswalpha.3, iswblank.3, iswcntrl.3, iswctype.3, iswdigit.3, iswgraph.3, iswlower.3, iswprint.3, iswpunct.3, iswspace.3, iswupper.3, iswxdigit.3, j0.3, key_setsecret.3, ldexp.3, lgamma.3, lio_listio.3, localeconv.3, lockf.3, log.3, log10.3, log1p.3, log2.3, logb.3, login.3, longjmp.3, lrint.3, lround.3, lsearch.3, lseek64.3, makecontext.3, makedev.3, malloc.3, malloc_hook.3, mblen.3, mbrlen.3, mbrtowc.3, mbsinit.3, mbsnrtowcs.3, mbsrtowcs.3, mbstowcs.3, mbtowc.3, memccpy.3, memchr.3, memcmp.3, memcpy.3, memfrob.3, memmem.3, memmove.3, mempcpy.3, memset.3, mkdtemp.3, mkfifo.3, mkfifoat.3, mkstemp.3, mktemp.3, modf.3, mpool.3, mq_close.3, mq_getattr.3, mq_notify.3, mq_open.3, mq_receive.3, mq_send.3, mq_unlink.3, mtrace.3, nan.3, netlink.3, nextafter.3, nl_langinfo.3, offsetof.3, on_exit.3, opendir.3, openpty.3, perror.3, popen.3, posix_fallocate.3, posix_memalign.3, posix_openpt.3, pow.3, pow10.3, printf.3, profil.3, program_invocation_name.3, psignal.3, pthread_kill_other_threads_np.3, ptsname.3, putenv.3, putgrent.3, putpwent.3, puts.3, putwchar.3, qecvt.3, qsort.3, queue.3, raise.3, rand.3, random.3, random_r.3, rcmd.3, re_comp.3, readdir.3, realpath.3, recno.3, regex.3, remainder.3, remove.3, remquo.3, resolver.3, rewinddir.3, rexec.3, rint.3, round.3, rpc.3, rpmatch.3, rtime.3, rtnetlink.3, scalb.3, scalbln.3, scandir.3, scandirat.3, scanf.3, seekdir.3, sem_close.3, sem_destroy.3, sem_getvalue.3, sem_init.3, sem_open.3, sem_post.3, sem_unlink.3, sem_wait.3, setaliasent.3, setbuf.3, setenv.3, setjmp.3, setlocale.3, setlogmask.3, setnetgrent.3, shm_open.3, siginterrupt.3, signbit.3, significand.3, sigpause.3, sigqueue.3, sigset.3, sigsetops.3, sigvec.3, sin.3, sincos.3, sinh.3, sleep.3, sockatmark.3, sqrt.3, statvfs.3, stdarg.3, stdin.3, stdio.3, stdio_ext.3, stpcpy.3, stpncpy.3, strcasecmp.3, strcat.3, strchr.3, strcmp.3, strcoll.3, strcpy.3, strdup.3, strerror.3, strfmon.3, strfry.3, strftime.3, string.3, strlen.3, strnlen.3, strpbrk.3, strptime.3, strsep.3, strsignal.3, strspn.3, strstr.3, strtod.3, strtoimax.3, strtok.3, strtol.3, strtoul.3, strverscmp.3, strxfrm.3, swab.3, sysconf.3, syslog.3, system.3, sysv_signal.3, tan.3, tanh.3, tcgetpgrp.3, tcgetsid.3, telldir.3, tempnam.3, termios.3, tgamma.3, timegm.3, timeradd.3, tmpfile.3, tmpnam.3, toascii.3, toupper.3, towctrans.3, towlower.3, towupper.3, trunc.3, tsearch.3, ttyname.3, ttyslot.3, tzset.3, ualarm.3, ulimit.3, ungetwc.3, unlocked_stdio.3, unlockpt.3, updwtmp.3, usleep.3, wcpcpy.3, wcpncpy.3, wcrtomb.3, wcscasecmp.3, wcscat.3, wcschr.3, wcscmp.3, wcscpy.3, wcscspn.3, wcsdup.3, wcslen.3, wcsncasecmp.3, wcsncat.3, wcsncmp.3, wcsncpy.3, wcsnlen.3, wcsnrtombs.3, wcspbrk.3, wcsrchr.3, wcsrtombs.3, wcsspn.3, wcsstr.3, wcstoimax.3, wcstok.3, wcstombs.3, wcswidth.3, wctob.3, wctomb.3, wctrans.3, wctype.3, wcwidth.3, wmemchr.3, wmemcmp.3, wmemcpy.3, wmemmove.3, wmemset.3, wordexp.3, wprintf.3, xcrypt.3, xdr.3, y0.3, cciss.4, console.4, console_codes.4, console_ioctl.4, dsp56k.4, fd.4, full.4, hd.4, hpsa.4, initrd.4, intro.4, lp.4, mem.4, mouse.4, null.4, pts.4, ram.4, random.4, rtc.4, sk98lin.4, st.4, tty.4, ttyS.4, tty_ioctl.4, vcs.4, wavelan.4, acct.5, charmap.5, dir_colors.5, filesystems.5, ftpusers.5, group.5, host.conf.5, hosts.5, hosts.equiv.5, intro.5, issue.5, locale.5, motd.5, networks.5, nologin.5, nscd.conf.5, passwd.5, proc.5, protocols.5, resolv.conf.5, rpc.5, securetty.5, services.5, shells.5, termcap.5, ttytype.5, utmp.5, armscii-8.7, arp.7, ascii.7, bootparam.7, capabilities.7, charsets.7, complex.7, cp1251.7, credentials.7, ddp.7, environ.7, epoll.7, fifo.7, futex.7, glob.7, hier.7, icmp.7, inotify.7, intro.7, ip.7, ipv6.7, iso_8859-1.7, iso_8859-10.7, iso_8859-11.7, iso_8859-13.7, iso_8859-14.7, iso_8859-15.7, iso_8859-16.7, iso_8859-2.7, iso_8859-3.7, iso_8859-4.7, iso_8859-5.7, iso_8859-6.7, iso_8859-7.7, iso_8859-8.7, iso_8859-9.7, koi8-r.7, koi8-u.7, locale.7, mailaddr.7, man.7, mq_overview.7, netdevice.7, netlink.7, numa.7, packet.7, path_resolution.7, pipe.7, posixoptions.7, pthreads.7, pty.7, raw.7, regex.7, rtld-audit.7, rtnetlink.7, sem_overview.7, shm_overview.7, sigevent.7, signal.7, socket.7, standards.7, suffixes.7, svipc.7, tcp.7, termio.7, time.7, udp.7, udplite.7, unicode.7, unix.7, uri.7, utf-8.7, x25.7, nscd.8, sync.8, tzselect.8, zdump.8, zic.8: Global fix: remove unneeded double quotes in .SH headings
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2013-02-24 18:01:36 +00:00
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.SH CONFORMING TO
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2008-03-19 15:09:59 +00:00
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POSIX.1-2001 specifies
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.BR gethostbyname (),
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.BR gethostbyaddr (),
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.BR sethostent (),
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.BR endhostent (),
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.BR gethostent (),
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and
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2008-10-22 10:00:05 +00:00
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.IR h_errno ;
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.BR gethostbyname (),
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.BR gethostbyaddr (),
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and
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.IR h_errno
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are marked obsolescent in that standard.
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2008-08-06 12:18:31 +00:00
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POSIX.1-2008 removes the specifications of
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.BR gethostbyname (),
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.BR gethostbyaddr (),
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and
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2009-03-14 18:35:17 +00:00
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.IR h_errno ,
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recommending the use of
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.BR getaddrinfo (3)
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and
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.BR getnameinfo (3)
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instead.
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2007-05-16 17:35:34 +00:00
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.SH NOTES
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The functions
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.BR gethostbyname ()
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and
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.BR gethostbyaddr ()
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may return pointers to static data, which may be overwritten by
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later calls.
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Copying the
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.I struct hostent
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does not suffice, since it contains pointers; a deep copy is required.
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.LP
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2007-06-21 22:55:04 +00:00
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In the original BSD implementation the
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2007-05-26 05:56:21 +00:00
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.I len
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argument
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2007-06-21 22:55:04 +00:00
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of
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2007-05-26 05:56:21 +00:00
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.BR gethostbyname ()
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was an
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.IR int .
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The SUSv2 standard is buggy and declares the
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2007-05-16 17:35:34 +00:00
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.I len
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2008-07-10 20:53:08 +00:00
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argument of
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2007-05-16 17:35:34 +00:00
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.BR gethostbyaddr ()
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to be of type
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.IR size_t .
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(That is wrong, because it has to be
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.IR int ,
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and
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.I size_t
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is not.
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POSIX.1-2001 makes it
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.IR socklen_t ,
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which is OK.)
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2007-05-26 05:56:21 +00:00
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See also
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.BR accept (2).
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2007-05-16 17:35:34 +00:00
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.LP
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The BSD prototype for
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.BR gethostbyaddr ()
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uses
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arch_prctl.2, getpeername.2, getrlimit.2, ioctl_list.2, mmap2.2, mremap.2, sched_setaffinity.2, setup.2, shmop.2, argz_add.3, exec.3, fenv.3, fmtmsg.3, gethostbyname.3, posix_memalign.3, printf.3, scanf.3, sigpause.3, wordexp.3, xdr.3, st.4, tty_ioctl.4: Formatting fix: prevent '*' in declaration or cast wrapping to next line
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2013-06-07 17:12:39 +00:00
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.I "const char\ *"
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2007-05-16 17:35:34 +00:00
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for the first argument.
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intro.1, time.1, _syscall.2, accept.2, capget.2, clone.2, execve.2, fcntl.2, intro.2, ioctl_list.2, ioprio_set.2, kill.2, mlock.2, nanosleep.2, perf_event_open.2, select.2, stat.2, times.2, ustat.2, vfork.2, wait.2, cfree.3, dbopen.3, dlopen.3, fenv.3, fmtmsg.3, gamma.3, getaddrinfo.3, gethostbyname.3, getnameinfo.3, getspnam.3, login.3, printf.3, regex.3, stdio.3, sysconf.3, termios.3, ttyslot.3, undocumented.3, wordexp.3, console_codes.4, initrd.4, mouse.4, random.4, st.4, tty_ioctl.4, wavelan.4, charmap.5, dir_colors.5, hosts.5, termcap.5, armscii-8.7, boot.7, bootparam.7, capabilities.7, charsets.7, ddp.7, futex.7, glob.7, ipv6.7, iso_8859-1.7, iso_8859-10.7, iso_8859-11.7, iso_8859-13.7, iso_8859-14.7, iso_8859-15.7, iso_8859-16.7, iso_8859-2.7, iso_8859-3.7, iso_8859-4.7, iso_8859-5.7, iso_8859-6.7, iso_8859-7.7, iso_8859-8.7, iso_8859-9.7, koi8-r.7, koi8-u.7, man.7, numa.7, path_resolution.7, pipe.7, posixoptions.7, pthreads.7, pty.7, rtnetlink.7, signal.7, time.7, udp.7, udplite.7, unicode.7, uri.7, utf-8.7: G;lobal fix: remove unneeded double quotes in .SS headings
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2013-02-24 18:02:18 +00:00
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.SS System V/POSIX extension
|
2004-11-03 13:51:07 +00:00
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POSIX requires the
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.BR gethostent ()
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2015-05-11 09:07:48 +00:00
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call, which should return the next entry in the host data base.
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2004-11-03 13:51:07 +00:00
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When using DNS/BIND this does not make much sense, but it may
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be reasonable if the host data base is a file that can be read
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2007-04-12 22:42:49 +00:00
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line by line.
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2015-05-11 09:07:48 +00:00
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On many systems, a routine of this name reads
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2004-11-03 13:51:07 +00:00
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from the file
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.IR /etc/hosts .
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2010-10-12 04:44:46 +00:00
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.\" e.g., Linux, FreeBSD, UnixWare, HP-UX
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2004-11-03 13:51:07 +00:00
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It may be available only when the library was built without DNS support.
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2007-06-08 11:56:22 +00:00
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.\" e.g., FreeBSD, AIX
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2007-04-12 22:42:49 +00:00
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The glibc version will ignore ipv6 entries.
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This function is not reentrant,
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2004-11-03 13:51:07 +00:00
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and glibc adds a reentrant version
|
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.BR gethostent_r ().
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intro.1, time.1, _syscall.2, accept.2, capget.2, clone.2, execve.2, fcntl.2, intro.2, ioctl_list.2, ioprio_set.2, kill.2, mlock.2, nanosleep.2, perf_event_open.2, select.2, stat.2, times.2, ustat.2, vfork.2, wait.2, cfree.3, dbopen.3, dlopen.3, fenv.3, fmtmsg.3, gamma.3, getaddrinfo.3, gethostbyname.3, getnameinfo.3, getspnam.3, login.3, printf.3, regex.3, stdio.3, sysconf.3, termios.3, ttyslot.3, undocumented.3, wordexp.3, console_codes.4, initrd.4, mouse.4, random.4, st.4, tty_ioctl.4, wavelan.4, charmap.5, dir_colors.5, hosts.5, termcap.5, armscii-8.7, boot.7, bootparam.7, capabilities.7, charsets.7, ddp.7, futex.7, glob.7, ipv6.7, iso_8859-1.7, iso_8859-10.7, iso_8859-11.7, iso_8859-13.7, iso_8859-14.7, iso_8859-15.7, iso_8859-16.7, iso_8859-2.7, iso_8859-3.7, iso_8859-4.7, iso_8859-5.7, iso_8859-6.7, iso_8859-7.7, iso_8859-8.7, iso_8859-9.7, koi8-r.7, koi8-u.7, man.7, numa.7, path_resolution.7, pipe.7, posixoptions.7, pthreads.7, pty.7, rtnetlink.7, signal.7, time.7, udp.7, udplite.7, unicode.7, uri.7, utf-8.7: G;lobal fix: remove unneeded double quotes in .SS headings
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2013-02-24 18:02:18 +00:00
|
|
|
.SS GNU extensions
|
2004-11-03 13:51:07 +00:00
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Glibc2 also has a
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2005-10-19 07:07:02 +00:00
|
|
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.BR gethostbyname2 ()
|
2004-11-03 13:51:07 +00:00
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|
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that works like
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2005-10-19 07:07:02 +00:00
|
|
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.BR gethostbyname (),
|
2004-11-03 13:51:07 +00:00
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but permits to specify the address family to which the address must belong.
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.LP
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Glibc2 also has reentrant versions
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2007-08-27 12:24:27 +00:00
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|
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.BR gethostent_r (),
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|
|
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.BR gethostbyaddr_r (),
|
2005-10-19 07:07:02 +00:00
|
|
|
.BR gethostbyname_r ()
|
2004-11-03 13:51:07 +00:00
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|
and
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2005-10-19 07:07:02 +00:00
|
|
|
.BR gethostbyname2_r ().
|
2007-09-10 04:17:16 +00:00
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The caller supplies a
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.I hostent
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|
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structure
|
2007-08-27 12:24:27 +00:00
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.I ret
|
2007-09-10 04:17:16 +00:00
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which will be filled in on success, and a temporary work buffer
|
2004-11-03 13:51:07 +00:00
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|
|
.I buf
|
2007-08-27 12:24:27 +00:00
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|
|
of size
|
2004-11-03 13:51:07 +00:00
|
|
|
.IR buflen .
|
2007-08-27 12:24:27 +00:00
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After the call,
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|
|
|
.I result
|
2008-06-12 06:09:19 +00:00
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|
will point to the result on success.
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|
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|
In case of an error
|
2007-08-27 12:24:27 +00:00
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|
|
or if no entry is found
|
|
|
|
.I result
|
2007-09-10 04:17:16 +00:00
|
|
|
will be NULL.
|
intro.1, time.1, adjtimex.2, capget.2, eventfd.2, fcntl.2, getrlimit.2, getsockopt.2, gettimeofday.2, intro.2, ioctl_list.2, ioperm.2, mlock.2, pivot_root.2, poll.2, prctl.2, ptrace.2, sched_setscheduler.2, select_tut.2, semget.2, sigaltstack.2, signalfd.2, sysctl.2, timer_settime.2, timerfd_create.2, wait.2, CPU_SET.3, argz_add.3, assert_perror.3, atexit.3, backtrace.3, bcmp.3, clearenv.3, ctime.3, dl_iterate_phdr.3, dlopen.3, ecvt.3, errno.3, error.3, ether_aton.3, exit.3, fenv.3, ferror.3, finite.3, flockfile.3, fnmatch.3, fpathconf.3, fpclassify.3, ftime.3, ftok.3, ftw.3, fwide.3, getaddrinfo.3, gethostbyname.3, getlogin.3, getnameinfo.3, getnetent.3, getopt.3, getprotoent.3, getrpcent.3, getservent.3, glob.3, hsearch.3, inet.3, isalpha.3, iswalnum.3, iswalpha.3, iswblank.3, iswcntrl.3, iswctype.3, iswdigit.3, iswgraph.3, iswlower.3, iswprint.3, iswpunct.3, iswspace.3, iswupper.3, iswxdigit.3, longjmp.3, lsearch.3, malloc.3, matherr.3, mblen.3, mbsinit.3, mbtowc.3, on_exit.3, printf.3, pthread_attr_init.3, pthread_attr_setaffinity_np.3, pthread_attr_setdetachstate.3, pthread_attr_setguardsize.3, pthread_attr_setinheritsched.3, pthread_attr_setschedparam.3, pthread_attr_setschedpolicy.3, pthread_attr_setscope.3, pthread_attr_setstack.3, pthread_attr_setstackaddr.3, pthread_attr_setstacksize.3, pthread_cancel.3, pthread_cleanup_push.3, pthread_equal.3, pthread_getattr_np.3, pthread_getcpuclockid.3, pthread_setaffinity_np.3, pthread_setcancelstate.3, pthread_setconcurrency.3, pthread_setschedparam.3, pthread_setschedprio.3, ptsname.3, putenv.3, putgrent.3, raise.3, rcmd.3, regex.3, rexec.3, rpc.3, rpmatch.3, rtnetlink.3, scandir.3, sem_init.3, setaliasent.3, setbuf.3, setenv.3, setjmp.3, signbit.3, stdio_ext.3, strtod.3, strtol.3, strtoul.3, system.3, termios.3, timeradd.3, tzset.3, ualarm.3, wctomb.3, xdr.3, st.4, tty_ioctl.4, core.5, elf.5, proc.5, bootparam.7, capabilities.7, icmp.7, ip.7, ipv6.7, math_error.7, mdoc.samples.7, mq_overview.7, pthreads.7, raw.7, regex.7, socket.7, tcp.7, tzselect.8: Global fix: s/non-zero/nonzero/
The tendency in English, as prescribed in style guides like
Chicago MoS, is towards removing hyphens after prefixes
like "non-" etc.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2010-01-16 16:40:55 +00:00
|
|
|
The functions return 0 on success and a nonzero error number on failure.
|
getgrent_r.3, gethostbyname.3, getmntent.3, getnetent_r.3, getprotoent_r.3, getpwent_r.3, getrpcent_r.3, getservent_r.3, getspnam.3: Global fix: s/non-reentrant/nonrentrant/
The tendency in English, as prescribed in style guides like
Chicago MoS, is towards removing hyphens after prefixes
like "non-" etc.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2010-01-16 16:55:51 +00:00
|
|
|
In addition to the errors returned by the nonreentrant
|
2007-08-27 12:24:27 +00:00
|
|
|
versions of these functions, if
|
|
|
|
.I buf
|
|
|
|
is too small, the functions will return
|
|
|
|
.BR ERANGE ,
|
|
|
|
and the call should be retried with a larger buffer.
|
|
|
|
The global variable
|
2004-11-03 13:51:07 +00:00
|
|
|
.I h_errno
|
2007-08-27 12:24:27 +00:00
|
|
|
is not modified, but the address of a variable in which to store error numbers
|
2004-11-03 13:51:07 +00:00
|
|
|
is passed in
|
|
|
|
.IR h_errnop .
|
2008-06-13 10:14:55 +00:00
|
|
|
.SH BUGS
|
|
|
|
.BR gethostbyname ()
|
|
|
|
does not recognize components of a dotted IPv4 address string
|
|
|
|
that are expressed in hexadecimal.
|
|
|
|
.\" http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=482973
|
getent.1, intro.1, time.1, _exit.2, _syscall.2, accept.2, access.2, acct.2, adjtimex.2, alarm.2, alloc_hugepages.2, arch_prctl.2, bdflush.2, bind.2, brk.2, cacheflush.2, capget.2, chdir.2, chmod.2, chown.2, chroot.2, clock_getres.2, clock_nanosleep.2, clone.2, close.2, connect.2, create_module.2, delete_module.2, dup.2, epoll_create.2, epoll_ctl.2, epoll_wait.2, eventfd.2, execve.2, exit_group.2, faccessat.2, fchmodat.2, fchownat.2, fcntl.2, flock.2, fork.2, fstatat.2, fsync.2, futex.2, futimesat.2, get_kernel_syms.2, get_robust_list.2, get_thread_area.2, getcpu.2, getdents.2, getdomainname.2, getgid.2, getgroups.2, gethostname.2, getitimer.2, getpagesize.2, getpeername.2, getpid.2, getpriority.2, getresuid.2, getrlimit.2, getrusage.2, getsid.2, getsockname.2, getsockopt.2, gettid.2, gettimeofday.2, getuid.2, getunwind.2, getxattr.2, idle.2, init_module.2, inotify_add_watch.2, inotify_init.2, inotify_rm_watch.2, intro.2, io_cancel.2, io_destroy.2, io_getevents.2, io_setup.2, io_submit.2, ioctl.2, ioctl_list.2, ioperm.2, iopl.2, ioprio_set.2, ipc.2, kcmp.2, kill.2, killpg.2, link.2, linkat.2, listen.2, listxattr.2, llseek.2, lookup_dcookie.2, lseek.2, madvise.2, migrate_pages.2, mincore.2, mkdir.2, mkdirat.2, mknod.2, mknodat.2, mlock.2, mmap.2, mmap2.2, modify_ldt.2, mount.2, move_pages.2, mprotect.2, mq_getsetattr.2, mremap.2, msgctl.2, msgget.2, msgop.2, msync.2, nanosleep.2, nfsservctl.2, nice.2, open.2, openat.2, outb.2, pause.2, pciconfig_read.2, perf_event_open.2, perfmonctl.2, personality.2, pipe.2, pivot_root.2, poll.2, posix_fadvise.2, prctl.2, pread.2, process_vm_readv.2, ptrace.2, query_module.2, quotactl.2, read.2, readahead.2, readdir.2, readlink.2, readlinkat.2, readv.2, reboot.2, recv.2, remap_file_pages.2, removexattr.2, rename.2, renameat.2, rmdir.2, rt_sigqueueinfo.2, sched_get_priority_max.2, sched_rr_get_interval.2, sched_setaffinity.2, sched_setparam.2, sched_setscheduler.2, sched_yield.2, select.2, semctl.2, semget.2, semop.2, send.2, sendfile.2, set_thread_area.2, set_tid_address.2, seteuid.2, setfsgid.2, setfsuid.2, setgid.2, setpgid.2, setresuid.2, setreuid.2, setsid.2, setuid.2, setup.2, setxattr.2, shmctl.2, shmget.2, shmop.2, shutdown.2, sigaction.2, sigaltstack.2, signal.2, signalfd.2, sigpending.2, sigprocmask.2, sigreturn.2, sigsuspend.2, sigwaitinfo.2, socket.2, socketcall.2, socketpair.2, splice.2, stat.2, statfs.2, stime.2, swapon.2, symlink.2, symlinkat.2, sync.2, sync_file_range.2, sysctl.2, sysfs.2, sysinfo.2, syslog.2, tee.2, time.2, timerfd_create.2, times.2, tkill.2, truncate.2, umask.2, umount.2, uname.2, unimplemented.2, unlink.2, unlinkat.2, uselib.2, ustat.2, utime.2, utimensat.2, vfork.2, vhangup.2, vm86.2, vmsplice.2, wait.2, wait4.2, write.2, CPU_SET.3, INFINITY.3, MB_CUR_MAX.3, MB_LEN_MAX.3, __setfpucw.3, a64l.3, abort.3, abs.3, acos.3, acosh.3, addseverity.3, adjtime.3, aio_cancel.3, aio_error.3, aio_fsync.3, aio_read.3, aio_return.3, aio_suspend.3, aio_write.3, alloca.3, argz_add.3, asin.3, asinh.3, asprintf.3, assert.3, assert_perror.3, atan.3, atan2.3, atanh.3, atexit.3, atof.3, atoi.3, backtrace.3, basename.3, bcmp.3, bcopy.3, bindresvport.3, bsd_signal.3, bsearch.3, bstring.3, btowc.3, btree.3, byteorder.3, bzero.3, cabs.3, cacos.3, cacosh.3, canonicalize_file_name.3, carg.3, casin.3, casinh.3, catan.3, catanh.3, catgets.3, catopen.3, cbrt.3, ccos.3, ccosh.3, ceil.3, cerf.3, cexp.3, cexp2.3, cfree.3, cimag.3, clearenv.3, clock.3, clock_getcpuclockid.3, clog.3, clog10.3, clog2.3, closedir.3, cmsg.3, confstr.3, conj.3, copysign.3, cos.3, cosh.3, cpow.3, cproj.3, creal.3, crypt.3, csin.3, csinh.3, csqrt.3, ctan.3, ctanh.3, ctermid.3, ctime.3, daemon.3, dbopen.3, des_crypt.3, difftime.3, dirfd.3, div.3, dl_iterate_phdr.3, dlopen.3, dprintf.3, drand48.3, drand48_r.3, dysize.3, ecvt.3, ecvt_r.3, encrypt.3, end.3, endian.3, envz_add.3, erf.3, erfc.3, err.3, errno.3, error.3, ether_aton.3, euidaccess.3, exec.3, exit.3, exp.3, exp10.3, exp2.3, expm1.3, fabs.3, fclose.3, fcloseall.3, fdim.3, fenv.3, ferror.3, fexecve.3, fflush.3, ffs.3, fgetgrent.3, fgetpwent.3, fgetwc.3, fgetws.3, finite.3, flockfile.3, floor.3, fma.3, fmax.3, fmemopen.3, fmin.3, fmod.3, fmtmsg.3, fnmatch.3, fopen.3, fpathconf.3, fpclassify.3, fpurge.3, fputwc.3, fputws.3, fread.3, frexp.3, fseek.3, fseeko.3, ftime.3, ftok.3, fts.3, ftw.3, futimes.3, fwide.3, gamma.3, gcvt.3, getaddrinfo.3, getaddrinfo_a.3, getauxval.3, getcontext.3, getcwd.3, getdate.3, getdirentries.3, getdtablesize.3, getenv.3, getfsent.3, getgrent.3, getgrent_r.3, getgrnam.3, getgrouplist.3, gethostbyname.3, gethostid.3, getipnodebyname.3, getline.3, getloadavg.3, getlogin.3, getmntent.3, getnameinfo.3, getnetent.3, getnetent_r.3, getopt.3, getpass.3, getprotoent.3, getprotoent_r.3, getpt.3, getpw.3, getpwent.3, getpwent_r.3, getpwnam.3, getrpcent.3, getrpcent_r.3, getrpcport.3, gets.3, getservent.3, getservent_r.3, getspnam.3, getttyent.3, getumask.3, getusershell.3, getutent.3, getw.3, getwchar.3, glob.3, grantpt.3, gsignal.3, hash.3, hsearch.3, hypot.3, iconv.3, iconv_close.3, iconv_open.3, ilogb.3, index.3, inet.3, inet_ntop.3, inet_pton.3, infnan.3, initgroups.3, insque.3, intro.3, isalpha.3, isatty.3, isgreater.3, iswalnum.3, iswalpha.3, iswblank.3, iswcntrl.3, iswctype.3, iswdigit.3, iswgraph.3, iswlower.3, iswprint.3, iswpunct.3, iswspace.3, iswupper.3, iswxdigit.3, j0.3, key_setsecret.3, ldexp.3, lgamma.3, lio_listio.3, localeconv.3, lockf.3, log.3, log10.3, log1p.3, log2.3, logb.3, login.3, longjmp.3, lrint.3, lround.3, lsearch.3, lseek64.3, makecontext.3, makedev.3, malloc.3, malloc_hook.3, mblen.3, mbrlen.3, mbrtowc.3, mbsinit.3, mbsnrtowcs.3, mbsrtowcs.3, mbstowcs.3, mbtowc.3, memccpy.3, memchr.3, memcmp.3, memcpy.3, memfrob.3, memmem.3, memmove.3, mempcpy.3, memset.3, mkdtemp.3, mkfifo.3, mkfifoat.3, mkstemp.3, mktemp.3, modf.3, mpool.3, mq_close.3, mq_getattr.3, mq_notify.3, mq_open.3, mq_receive.3, mq_send.3, mq_unlink.3, mtrace.3, nan.3, netlink.3, nextafter.3, nl_langinfo.3, offsetof.3, on_exit.3, opendir.3, openpty.3, perror.3, popen.3, posix_fallocate.3, posix_memalign.3, posix_openpt.3, pow.3, pow10.3, printf.3, profil.3, program_invocation_name.3, psignal.3, pthread_kill_other_threads_np.3, ptsname.3, putenv.3, putgrent.3, putpwent.3, puts.3, putwchar.3, qecvt.3, qsort.3, queue.3, raise.3, rand.3, random.3, random_r.3, rcmd.3, re_comp.3, readdir.3, realpath.3, recno.3, regex.3, remainder.3, remove.3, remquo.3, resolver.3, rewinddir.3, rexec.3, rint.3, round.3, rpc.3, rpmatch.3, rtime.3, rtnetlink.3, scalb.3, scalbln.3, scandir.3, scandirat.3, scanf.3, seekdir.3, sem_close.3, sem_destroy.3, sem_getvalue.3, sem_init.3, sem_open.3, sem_post.3, sem_unlink.3, sem_wait.3, setaliasent.3, setbuf.3, setenv.3, setjmp.3, setlocale.3, setlogmask.3, setnetgrent.3, shm_open.3, siginterrupt.3, signbit.3, significand.3, sigpause.3, sigqueue.3, sigset.3, sigsetops.3, sigvec.3, sin.3, sincos.3, sinh.3, sleep.3, sockatmark.3, sqrt.3, statvfs.3, stdarg.3, stdin.3, stdio.3, stdio_ext.3, stpcpy.3, stpncpy.3, strcasecmp.3, strcat.3, strchr.3, strcmp.3, strcoll.3, strcpy.3, strdup.3, strerror.3, strfmon.3, strfry.3, strftime.3, string.3, strlen.3, strnlen.3, strpbrk.3, strptime.3, strsep.3, strsignal.3, strspn.3, strstr.3, strtod.3, strtoimax.3, strtok.3, strtol.3, strtoul.3, strverscmp.3, strxfrm.3, swab.3, sysconf.3, syslog.3, system.3, sysv_signal.3, tan.3, tanh.3, tcgetpgrp.3, tcgetsid.3, telldir.3, tempnam.3, termios.3, tgamma.3, timegm.3, timeradd.3, tmpfile.3, tmpnam.3, toascii.3, toupper.3, towctrans.3, towlower.3, towupper.3, trunc.3, tsearch.3, ttyname.3, ttyslot.3, tzset.3, ualarm.3, ulimit.3, ungetwc.3, unlocked_stdio.3, unlockpt.3, updwtmp.3, usleep.3, wcpcpy.3, wcpncpy.3, wcrtomb.3, wcscasecmp.3, wcscat.3, wcschr.3, wcscmp.3, wcscpy.3, wcscspn.3, wcsdup.3, wcslen.3, wcsncasecmp.3, wcsncat.3, wcsncmp.3, wcsncpy.3, wcsnlen.3, wcsnrtombs.3, wcspbrk.3, wcsrchr.3, wcsrtombs.3, wcsspn.3, wcsstr.3, wcstoimax.3, wcstok.3, wcstombs.3, wcswidth.3, wctob.3, wctomb.3, wctrans.3, wctype.3, wcwidth.3, wmemchr.3, wmemcmp.3, wmemcpy.3, wmemmove.3, wmemset.3, wordexp.3, wprintf.3, xcrypt.3, xdr.3, y0.3, cciss.4, console.4, console_codes.4, console_ioctl.4, dsp56k.4, fd.4, full.4, hd.4, hpsa.4, initrd.4, intro.4, lp.4, mem.4, mouse.4, null.4, pts.4, ram.4, random.4, rtc.4, sk98lin.4, st.4, tty.4, ttyS.4, tty_ioctl.4, vcs.4, wavelan.4, acct.5, charmap.5, dir_colors.5, filesystems.5, ftpusers.5, group.5, host.conf.5, hosts.5, hosts.equiv.5, intro.5, issue.5, locale.5, motd.5, networks.5, nologin.5, nscd.conf.5, passwd.5, proc.5, protocols.5, resolv.conf.5, rpc.5, securetty.5, services.5, shells.5, termcap.5, ttytype.5, utmp.5, armscii-8.7, arp.7, ascii.7, bootparam.7, capabilities.7, charsets.7, complex.7, cp1251.7, credentials.7, ddp.7, environ.7, epoll.7, fifo.7, futex.7, glob.7, hier.7, icmp.7, inotify.7, intro.7, ip.7, ipv6.7, iso_8859-1.7, iso_8859-10.7, iso_8859-11.7, iso_8859-13.7, iso_8859-14.7, iso_8859-15.7, iso_8859-16.7, iso_8859-2.7, iso_8859-3.7, iso_8859-4.7, iso_8859-5.7, iso_8859-6.7, iso_8859-7.7, iso_8859-8.7, iso_8859-9.7, koi8-r.7, koi8-u.7, locale.7, mailaddr.7, man.7, mq_overview.7, netdevice.7, netlink.7, numa.7, packet.7, path_resolution.7, pipe.7, posixoptions.7, pthreads.7, pty.7, raw.7, regex.7, rtld-audit.7, rtnetlink.7, sem_overview.7, shm_overview.7, sigevent.7, signal.7, socket.7, standards.7, suffixes.7, svipc.7, tcp.7, termio.7, time.7, udp.7, udplite.7, unicode.7, unix.7, uri.7, utf-8.7, x25.7, nscd.8, sync.8, tzselect.8, zdump.8, zic.8: Global fix: remove unneeded double quotes in .SH headings
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2013-02-24 18:01:36 +00:00
|
|
|
.SH SEE ALSO
|
2004-11-03 13:51:07 +00:00
|
|
|
.BR getaddrinfo (3),
|
2007-10-14 18:16:34 +00:00
|
|
|
.\" .BR getipnodebyaddr (3),
|
|
|
|
.\" .BR getipnodebyname (3),
|
2004-11-03 13:51:07 +00:00
|
|
|
.BR getnameinfo (3),
|
2008-06-13 10:14:55 +00:00
|
|
|
.BR inet (3),
|
2004-11-03 13:51:07 +00:00
|
|
|
.BR inet_ntop (3),
|
|
|
|
.BR inet_pton (3),
|
|
|
|
.BR resolver (3),
|
|
|
|
.BR hosts (5),
|
2005-12-13 15:22:17 +00:00
|
|
|
.BR nsswitch.conf (5),
|
2004-11-03 13:51:07 +00:00
|
|
|
.BR hostname (7),
|
2005-12-13 15:22:17 +00:00
|
|
|
.BR named (8)
|
|
|
|
.\" .BR resolv+ (8)
|