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122 Commits

Author SHA1 Message Date
Michael Kerrisk 6a717e5e3f networks.5, arp.7, cp1251.7, ddp.7, icmp.7, ip.7, ipv6.7, iso_8859-10.7, iso_8859-13.7, iso_8859-14.7, iso_8859-15.7, iso_8859-3.7, iso_8859-4.7, iso_8859-5.7, iso_8859-6.7, iso_8859-7.7, iso_8859-9.7, koi8-r.7, netdevice.7, netlink.7, packet.7, raw.7, rtnetlink.7, udp.7, x25.7, ld.so.8, sln.8, sync.8: srcfix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2013-03-12 12:28:50 +01:00
Michael Kerrisk 8ff7380d6f epoll_create.2, epoll_ctl.2, epoll_wait.2, eventfd.2, fallocate.2, futex.2, getcpu.2, getitimer.2, ioctl_list.2, ioprio_set.2, migrate_pages.2, move_pages.2, pciconfig_read.2, sendfile.2, setns.2, signalfd.2, spu_create.2, spu_run.2, sysinfo.2, timerfd_create.2, backtrace.3, cmsg.3, error.3, getpt.3, getrpcent.3, getrpcport.3, getsubopt.3, offsetof.3, program_invocation_name.3, rpc.3, rpmatch.3, rtnetlink.3, xdr.3, cciss.4, hpsa.4, pts.4, charmap.5, dir_colors.5, elf.5, gai.conf.5, locale.5, nscd.conf.5, nss.5, resolv.conf.5, rpc.5, arp.7, cpuset.7, ddp.7, epoll.7, fifo.7, futex.7, icmp.7, ip.7, ipv6.7, mailaddr.7, netdevice.7, packet.7, raw.7, regex.7, rtnetlink.7, socket.7, spufs.7, tcp.7, udp.7, unix.7, x25.7, ldconfig.8, nscd.8: Global fix: s/END_LICENSE/LICENSE_END/ 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2013-03-12 10:31:09 +01:00
Michael Kerrisk e9e3c82b0f ip.7, netdevice.7, netlink.7, raw.7, rtnetlink.7, socket.7: srcfix: Remove redundant comment about /^.\" t/ line at top of page 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2013-03-10 10:57:12 +01:00
Michael Kerrisk 2297bf0ef5 ldd.1, capget.2, clone.2, create_module.2, fallocate.2, futex.2, get_kernel_syms.2, get_thread_area.2, getcpu.2, getitimer.2, getpid.2, io_cancel.2, io_destroy.2, io_getevents.2, io_setup.2, io_submit.2, ioctl_list.2, mkdir.2, mknod.2, pciconfig_read.2, pivot_root.2, posix_fadvise.2, query_module.2, sendfile.2, set_thread_area.2, setns.2, unshare.2, __setfpucw.3, a64l.3, addseverity.3, argz_add.3, bindresvport.3, cabs.3, cacos.3, cacosh.3, canonicalize_file_name.3, carg.3, casin.3, casinh.3, catan.3, catanh.3, ccos.3, ccosh.3, cerf.3, cexp.3, cexp2.3, cimag.3, clog.3, clog10.3, clog2.3, cmsg.3, conj.3, cpow.3, cproj.3, creal.3, csin.3, csinh.3, csqrt.3, ctan.3, ctanh.3, des_crypt.3, envz_add.3, fdim.3, fma.3, fmax.3, fmemopen.3, fmin.3, fmtmsg.3, fpclassify.3, gamma.3, getpt.3, getrpcent.3, getrpcport.3, getttyent.3, isgreater.3, key_setsecret.3, lgamma.3, malloc_hook.3, mempcpy.3, nan.3, netlink.3, nextafter.3, putgrent.3, remove.3, remquo.3, rpc.3, rtime.3, rtnetlink.3, setaliasent.3, setnetgrent.3, signbit.3, significand.3, sincos.3, stdin.3, tgamma.3, xcrypt.3, xdr.3, cciss.4, hpsa.4, mouse.4, pts.4, sk98lin.4, tty_ioctl.4, wavelan.4, hosts.equiv.5, rpc.5, tzfile.5, boot.7, complex.7, ddp.7, fifo.7, futex.7, icmp.7, ip.7, ipv6.7, netdevice.7, netlink.7, packet.7, raw.7, rtnetlink.7, socket.7, tcp.7, udp.7, unix.7, x25.7, sync.8: Global fix: Put copyright info at top of page, followed by blank line and LICENSE 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2013-03-10 10:57:11 +01:00
Michael Kerrisk 00acdba18c getcpu.2, sendfile.2, cmsg.3, rtnetlink.3, arp.7, ddp.7, fifo.7, icmp.7, ip.7, ipv6.7, netdevice.7, packet.7, raw.7, rtnetlink.7, socket.7, tcp.7, udp.7, unix.7, x25.7: LICENSE_START(VERBATIM_ONE_PARA) 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2013-03-10 10:57:10 +01:00
Michael Kerrisk 7fc9de91dd fsync.2, getcpu.2, io_getevents.2, kcmp.2, killpg.2, outb.2, perf_event_open.2, setns.2, getaddrinfo_a.3, makedev.3, mcheck.3, perror.3, posix_memalign.3, xdr.3, cciss.4, fd.4, hpsa.4, st.4, acct.5, gai.conf.5, nss.5, proc.5, ip.7, koi8-r.7, netdevice.7, netlink.7, ld.so.8: Remove double blank lines in output 
Found using this script from Denys Vlasenko (with some mods
by mtk):

    find man? -type f -name '*.[123456789]' -size +200c | sort \
    | while read name; do
            m1="`man $name | tail -n +5 | head -n-1`"
            m2="`
            printf "%s\n" "$m1" \
            | tr $'\n' '@' \
            | sed 's/@@@/@@HERE>>>>@/g' \
            | tr '@' $'\n' \
            | sed 's/^/\t/' \
            | sed 's/^\tHERE>>>>/    HERE>>>>/' \
            | grep -C2 -e $'^[^\t]' \
            | sed 's/^\t$//'
            `"
            test "$m2" || continue
            printf "%s\n%s\n" "${name#./}" "$m2"
    done

Reported-by: Denys Vlasenko <vda.linux@googlemail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2013-02-25 07:05:55 +01:00
Michael Kerrisk 47297adb6e 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 19:01:36 +01:00
Michael Kerrisk c634028ab5 intro.1, time.1, _syscall.2, accept.2, brk.2, capget.2, faccessat.2, futimesat.2, gethostname.2, intro.2, ioprio_set.2, kill.2, madvise.2, mlock.2, mount.2, msgget.2, perf_event_open.2, poll.2, readv.2, sched_rr_get_interval.2, sched_setscheduler.2, select.2, select_tut.2, shmget.2, stat.2, timer_create.2, ustat.2, vfork.2, wait.2, alloca.3, atexit.3, catopen.3, crypt.3, dbopen.3, fenv.3, fopen.3, getaddrinfo_a.3, gethostbyname.3, getutent.3, intro.3, login.3, mallopt.3, queue.3, regex.3, sigpause.3, sigsetops.3, stdio.3, strftime.3, strptime.3, sysconf.3, ttyslot.3, undocumented.3, cciss.4, console_codes.4, hpsa.4, initrd.4, intro.4, rtc.4, st.4, tty_ioctl.4, wavelan.4, acct.5, charmap.5, dir_colors.5, hosts.5, intro.5, termcap.5, utmp.5, intro.6, armscii-8.7, boot.7, bootparam.7, capabilities.7, cpuset.7, credentials.7, ddp.7, epoll.7, glob.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, man-pages.7, man.7, math_error.7, netlink.7, numa.7, packet.7, path_resolution.7, pipe.7, pthreads.7, raw.7, rtnetlink.7, signal.7, socket.7, spufs.7, svipc.7, tcp.7, time.7, udp.7, udplite.7, unicode.7, unix.7, uri.7, utf-8.7, x25.7, intro.8: Global fix: use consistent capitalization in .SS headings 
Capitalization in .SS sections across pages (and sometimes even
within a single page) is wildly inconsistent. Make it consistent.
Capitalize first word in heading, but otherwise use lower case,
except where English usage (e.g., proper nouns) or programming
language requirements (e.g., identifier names) dictate otherwise.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2013-02-24 15:08:38 +01:00
Michael Kerrisk b0a6a72e8d ip.7: srcfix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2013-02-14 01:24:47 +01:00
Michael Kerrisk c534b25d95 ip.7: Minor fixes 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2013-02-12 22:50:57 +01:00
Flavio Leitner 0a03fceb09 ip.7: Improve explanation about calling listen() or connect() 
Problem:
When connect(2) is executed, the local port number may duplicate.

How reproducible:
When using parameter "net.ipv4.ip_local_port_range", a client may use
the same port to connect to the different sessions on the localhost.

Steps to Reproduce:
1.Change "net.ipv4.ip_local_port_range".
  [Example]
  net.ipv4.ip_local_port_range = 32768 32770

2.Connect to any two ports of LISTEN by telnet command.
  [Example]
  # netstat -antp | grep LISTEN
  tcp        0      0 0.0.0.0:139                 0.0.0.0:*                   LISTEN      2828/smbd
  tcp        0      0 0.0.0.0:21                  0.0.0.0:*                   LISTEN      2800/vsftpd
  #
  # telnet 127.0.0.1 139
  # telnet 127.0.0.1 21
  # telnet 127.0.0.1 21

3.Duplication of a local transmission port.
  [Example]
  # netstat -antp
  tcp        0      0 127.0.0.1:32769      127.0.0.1:139      ESTABLISHED 18147/telnet
  tcp        0      0 127.0.0.1:32769      127.0.0.1:21       ESTABLISHED 18157/telnet

Actual results:
The local port number may duplicate.

Expected results:
The local port number doesn't duplicate.

Additional info:
[Investigation]
"man 7 ip" contains following text:
-----------------------------------------------------------------
When listen(2) or connect(2) are called on an unbound socket, it
is automatically bound to a random  free  port  with the local
address set to INADDR_ANY.
-----------------------------------------------------------------

Although indicated as "it is automatically bound to a random free
port", the port number which is not free like in a reproduce
procedure may be bound.  Therefore, based on the description of
this "man 7 ip", it can be judged that it is bug to use the local
port where the process duplicated.

--- Comment by Leitner, Flavio on 2/7/2012 2:55 PM ---

It's allowed to have multiple tasks using the same port (as a
result of calling connect(2)) as long as the other connection
information (4-tuple) differs to resolve the conflict.  Thus,
it must be an unique 4-tuple consisting of source and
destination IP addresses and port numbers to not conflict.

In the example, the dest port is different.
          tcp        0      0 127.0.0.1:32769      127.0.0.1:139      ESTABLISHED 18147/telnet
          tcp        0      0 127.0.0.1:32769      127.0.0.1:21       ESTABLISHED 18157/telnet

Reported-by: Peter Schiffer <pschiffe@redhat.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2013-02-12 22:50:57 +01:00
Michael Kerrisk 96d1766a79 fork.2, getpriority.2, ioprio_set.2, sched_setparam.2, sched_setscheduler.2, shmop.2, sigaction.2, unimplemented.2, makecontext.3, sysconf.3, resolv.conf.5, cpuset.7, ip.7, svipc.7, termio.7, zdump.8: tstamp 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2013-02-12 03:51:12 +01:00
Michael Kerrisk 343606a031 ip.7: Minor fixes 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2013-02-10 04:34:36 +01:00
Radek Pazdera 2a98c8e66d ip.7: Add source-specific multicast sockopts 
This patch adds documentation of several source-specific multicast
socket options that were added to kernel with implementation
of IGMPv3 in 2.5.68.

The following socket options were added:
  IP_ADD_SOURCE_MEMBERSHIP
  IP_DROP_SOURCE_MEMBERSHIP
  IP_BLOCK_SOURCE
  IP_UNBLOCK_SOURCE
  IP_MSFILTER

Information Sources:
  * RFC 3376 - Internet Group Management Protocol, Version 3
      http://tools.ietf.org/html/rfc3376
  * RFC 3678 - Socket Interface Extensions for Multicast Source
    Filters
      http://tools.ietf.org/html/rfc3678
  * Kernel source tree
      net/ipv4/ip_sockglue.c
      net/ipv4/igmp.c
  * Test programs used in Linux Network Stack Test
      http://git.fedorahosted.org/git/?p=lnst.git
      test_tools/multicast/

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2013-02-10 04:34:36 +01:00
Michael Kerrisk f645fea8c0 ip.7: srcfix: Added/updated FIXMEs 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2012-12-15 19:18:26 +01:00
Michael Kerrisk f567c52d80 ip.7: SEE ALSO: Add icmp(7) 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2012-10-10 11:10:45 +02:00
Michael Kerrisk e28830e42e ip.7: SEE ALSO: Add ipv6(7) 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2012-10-10 11:10:05 +02:00
David Prévot 173fe7e792 arch_prctl.2, fcntl.2, flock.2, get_robust_list.2, getpriority.2, ioprio_set.2, migrate_pages.2, mmap.2, mremap.2, msync.2, sched_get_priority_max.2, sched_rr_get_interval.2, sched_setparam.2, sched_setscheduler.2, sched_yield.2, select.2, socket.2, subpage_prot.2, unshare.2, btree.3, dbopen.3, dl_iterate_phdr.3, dlopen.3, getnameinfo.3, hash.3, lockf.3, netlink.3, recno.3, rpc.3, xdr.3, cciss.4, console_ioctl.4, hpsa.4, initrd.4, msr.4, rtc.4, st.4, hosts.5, services.5, tzfile.5, aio.7, arp.7, capabilities.7, cpuset.7, feature_test_macros.7, futex.7, inotify.7, ip.7, ipv6.7, iso_8859-16.7, iso_8859-2.7, koi8-r.7, math_error.7, netlink.7, packet.7, pthreads.7, raw.7, spufs.7, udplite.7, uri.7, x25.7: Global fix: Various consistency fixes for SEE ALSO 
Coauthored-by: Michael Kerrisk <mtk.manpages@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2012-09-24 09:53:22 +02:00
Michael Kerrisk 776b81f6cb ip.7: Mnor fixes 
Reported-by: Benjamin Poirier <benjamin.poirier@gmail.com>
Reported-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-23 07:25:34 +02:00
Benjamin Poirier 8341e3a766 ip.7: Improve description of IP_MTU_DISCOVER 
I noticed what appears to be a discrepancy between the ip(7)
man page and the kernel code with regards to the IP DF flag
for UDP sockets.

The man page says that "The don't-fragment flag is set on all
outgoing datagrams" and that the ip_no_pmtu_disc sysctl affects
only SOCK_STREAM sockets. This is quickly disproved by doing:

    echo 1 > /proc/sys/net/ipv4/ip_no_pmtu_disc

firing up netcat and looking at a few outgoing UDP packets in
wireshark (they don't have the DF flag set).

1) in the words of `man 7 ip`:
IP_MTU_DISCOVER (since Linux 2.2)
     Set or receive the Path MTU Discovery  setting  for  a  socket.
     When  enabled, Linux will perform Path MTU Discovery as defined
     in RFC 1191 on this socket.  The don't-fragment flag is set  on
     all  outgoing datagrams.  The system-wide default is controlled
     by the /proc/sys/net/ipv4/ip_no_pmtu_disc file for  SOCK_STREAM
     sockets, and disabled on all others.

2) in net/ipv4/af_inet.c:inet_create():
       if (ipv4_config.no_pmtu_disc)
               inet->pmtudisc = IP_PMTUDISC_DONT;
       else
               inet->pmtudisc = IP_PMTUDISC_WANT;

and pmtudisc is left alone from there on for UDP sockets.

Reviewed-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-22 06:08:30 +02:00
Michael Kerrisk 9458d0daac ip.7: Minor fixes 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-22 05:42:02 +02:00
David Prevot 00f964819b ip.7: ffix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2010-11-04 07:32:23 +01:00
David Prevot 0420475dee ip.7: ffix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2010-10-24 08:20:28 +02:00
David Prevot 299fc00dbf ip.7: Place socket options in alphabetical order 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2010-10-24 08:16:40 +02:00
David Prevot e89c891162 ip.7: ffix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2010-10-24 08:14:37 +02:00
David Prevot 1243ef4e2d ip.7: Fix name of socket option: s/IP_TTL/IP_TRANSPARENT/ 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2010-10-24 08:10:25 +02:00
Balazs Scheidler 48029bbfa2 ip.7: Document IP_RECVORIGDSTADDR 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2010-10-13 07:16:28 +02:00
Balazs Scheidler e85dc06262 ip.7: Document IP_TRANSPARENT 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2010-10-13 06:52:59 +02:00
Michael Kerrisk 7199373b28 ip.7: ffix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2010-10-13 06:41:36 +02:00
Michael Kerrisk 0ea50d8392 ip.7: Reword NOTES on Linux-specific options 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2010-10-13 06:41:08 +02:00
Michael Kerrisk be8fba4754 ip.7: Document IP_FREEBIND 
Text based on input from Lennart Poettering and Balazs Scheidler.
See https://bugzilla.kernel.org/show_bug.cgi?id=20082

Reported-by: Lennart Poettering <zxreary@0pointer.de>
Reported-by: Balazs Scheidler <bazsi@balabit.hu>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2010-10-13 06:28:58 +02:00
Michael Kerrisk f7401723ce ip.7: grfix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2010-10-13 05:52:51 +02:00
Michael Kerrisk 452f76294e ip.7: wfix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2010-10-13 05:46:00 +02:00
Michael Kerrisk 9b042ccb88 ip.7: srcfix: update FIXME 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2010-10-13 05:44:21 +02:00
Jiri Olsa a6e9960e8f ip.7: Document IP_NODEFRAG 
This option is new in Linux 2.6.36

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2010-09-11 07:19:10 +02:00
Michael Kerrisk 3ac83a00b6 ip.7: srcfix: Added FIXMEs 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2010-09-11 07:08:30 +02:00
Michael Kerrisk 24b74457e7 accept.2, access.2, acct.2, clock_nanosleep.2, mbind.2, mincore.2, remap_file_pages.2, sched_setscheduler.2, set_mempolicy.2, splice.2, stat.2, syslog.2, timer_create.2, timerfd_create.2, truncate.2, fenv.3, ferror.3, fflush.3, fgetwc.3, fgetws.3, flockfile.3, fputwc.3, fputws.3, fread.3, getopt.3, gets.3, getwchar.3, glob.3, iconv.3, longjmp.3, pow.3, printf.3, puts.3, putwchar.3, regex.3, rpc.3, scanf.3, setjmp.3, termios.3, unlocked_stdio.3, wcswidth.3, hd.4, rtc.4, st.4, core.5, dir_colors.5, elf.5, proc.5, arp.7, ascii.7, boot.7, bootparam.7, charsets.7, futex.7, ip.7, iso_8859-11.7, man-pages.7, man.7, mdoc.samples.7, path_resolution.7, pipe.7, posixoptions.7, unicode.7, unix.7, uri.7, utf-8.7, ld.so.8: s/non-/non/ 
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 18:20:12 +01:00
Michael Kerrisk ff40dbb354 accept.2, connect.2, eventfd.2, flock.2, open.2, posix_fadvise.2, read.2, recv.2, sched_setscheduler.2, select_tut.2, send.2, signalfd.2, splice.2, timerfd_create.2, write.2, flockfile.3, mkfifo.3, mq_notify.3, mq_open.3, pthread_tryjoin_np.3, scanf.3, random.4, ddp.7, epoll.7, fifo.7, ip.7, pipe.7, socket.7, spufs.7: Global fix: s/non-blocking/nonblocking/ 
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 17:43:10 +01:00
Michael Kerrisk c7094399ad 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 17:40:55 +01:00
Michael Kerrisk c8f2dd479b accept.2, execve.2, futimesat.2, getresuid.2, getrlimit.2, madvise.2, mq_getsetattr.2, msgctl.2, nice.2, open.2, poll.2, setresuid.2, shmctl.2, sigaction.2, times.2, utimensat.2, __setfpucw.3, atoi.3, endian.3, err.3, euidaccess.3, fenv.3, fopencookie.3, fpurge.3, getgrouplist.3, getutmp.3, j0.3, lgamma.3, netlink.3, pthread_attr_init.3, pthread_attr_setaffinity_np.3, pthread_cleanup_push_defer_np.3, pthread_getattr_np.3, pthread_kill_other_threads_np.3, pthread_setaffinity_np.3, pthread_tryjoin_np.3, pthread_yield.3, random_r.3, readdir.3, rtnetlink.3, scanf.3, setenv.3, significand.3, sigsetops.3, strerror.3, strstr.3, sysv_signal.3, termios.3, timegm.3, unlocked_stdio.3, y0.3, locale.5, bootparam.7, feature_test_macros.7, ip.7, locale.7, pthreads.7, rtld-audit.7, nscd.8: Global fix: s/non-standard/nonstandard/ 
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 17:40:20 +01:00
Nicolas François 531178c584 ip.7: Minor fixes 
Consistently use the infinitive.
Other typos.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2009-09-28 12:46:28 +02:00
Michael Kerrisk 4fa50d7281 ip.7: Fix type used to declare sin6_port 
The page should use the type specified by POSIX,
rather than the (equivalent) type used in the kernel

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2009-03-08 13:35:20 +13:00
Michael Kerrisk 6eb334b2cf bind.2, rcmd.3, capabilities.7, ip.7: Global fix: s/reserved port/privileged port/ 
Some pages used one term, some pages the other term;
make some consistency.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2008-12-05 22:47:26 -05:00
Michael Kerrisk 88a800a6a8 ip.7: Relocate info about Linux-specific sockopts to NOTES 
Also add some source comments about non-standard Linux-specific
options that are not yet documented.
 2008-11-25 20:54:23 -05:00
Michael Kerrisk 42d663bb2c ip.7: Remove mention of kernel header from description of IP_RECVERR 
Looks like glibc has had this definition since about version 2.1.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2008-11-25 20:54:23 -05:00
Michael Kerrisk e77995bdf5 ip.7: srcfix: updated FIXME 2008-11-25 20:54:23 -05:00
Michael Kerrisk 4ebab2e6dd ip.7: srcfix: Add/update FIXMEs for undocumented IP_* socket options 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2008-11-25 20:54:23 -05:00
Michael Kerrisk 554805f99b ip.7: Relocate kernel version information for ip_mreqn structure 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2008-11-25 20:54:23 -05:00
Michael Kerrisk 161aba8d31 ip.7: Relocate kernel version information for IP_PMTUDISC_PROBE 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2008-11-25 20:54:22 -05:00
Michael Kerrisk 02f6363733 ip.7: Added kernel version numbers for IP_* socket options 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2008-11-25 20:54:22 -05:00