88fedfa061
unix.7: Explicitly note that SO_PASSCRED provides SCM_CREDENTIALS messages
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-12-23 19:09:33 +01:00
c02ed554e9
unix.7: wfix
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-12-23 19:09:33 +01:00
744c8fa8d2
unix.7: Improve wording describing socket option argument/return values
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-12-23 19:09:33 +01:00
7df0e773c7
unix.7: wfix: s/foreign process/peer process/
...
The more common parlance these days is, I think, "peer".
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-07-28 12:30:44 +02:00
94950b9a68
socket.7, unix.7: Move text describing SO_PEERCRED from socket(7) to unix(7)
...
This is, AFAIK, an option specific to UNIX domain sockets, so
place it in unix(7).
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-07-28 12:30:44 +02:00
ffab8460c6
unix.7: Refer reader to socket(7) for information about SO_PEEK_OFF
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-07-28 12:30:44 +02:00
1221abb60e
unix.7: tfix
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-07-28 12:30:44 +02:00
ffad6a017f
unix.7: Document SCM_SECURITY ancillary data
...
And fix a wording error in the description of SO_PASSSEC.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-07-28 12:30:44 +02:00
366a9bffc8
unix.7: Document SO_PASSSEC
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-07-28 11:50:11 +02:00
5af0f223d1
unix.7: Ancillary data forms a barrier when receiving on a stream socket
...
Thanks to a tip from Keith Packard:
https://keithp.com/blogs/fd-passing/
(Also verified by experiment.)
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-07-17 09:39:56 +02:00
5219daec26
unix.7: One must send at least one byte of real data with ancillary data
...
When sending ancillary data, at least one byte of real data should
also be sent. This is strictly necessary for stream sockets
(verified by experiment). It is not required for datagram sockets
on Linux (verified by experiment), but portable applications
should do so.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-07-15 10:33:42 +02:00
c0e56ed687
unix.7: Clarify treatment of incoming ancillary data if 'msg_control' is NULL
...
If no buffer is supplied for incoming ancillary data, then
the data is lost.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-07-15 10:33:32 +02:00
4564dd1fee
unix.7: If the buffer to receive SCM_RIGHTS FDs is too small, FDs are closed
...
If the ancillary data buffer for receiving SCM_RIGHTS file
descriptors is too small, then the excess file descriptors are
automatically closed in the receiving process. Verified by
experiment.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-07-15 10:16:49 +02:00
b65f4c691d
unix.7: tfix
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-07-15 10:16:49 +02:00
879962006f
unix.7: ffix
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-07-15 09:50:30 +02:00
5b5cb19580
unix.7: When sending ancillary data, only one item of each type may be sent
...
Verified by experiment and reading the source code (although
the SCM_RIGHTS case is not so clear to me in the source code).
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-07-10 07:14:50 +02:00
52900faab3
unix.7: tfix
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-07-10 07:14:50 +02:00
311bf2f694
unix.7: Minor wording fixes
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-07-10 07:14:50 +02:00
05bf3361a6
unix.7: grfix
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-07-10 07:14:50 +02:00
c87721467e
unix.7: Note behavior if buffer to receive ancillary data is too small
...
If the buffer supplied to recvmsg() to receive ancillary data is
too small, then the data is truncated and the MSG_CTRUNC flag is
set.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-07-08 21:13:08 +02:00
13600496d3
unix.7: Enhance the description of SCM_RIGHTS
...
The existing description is rather thin. More can be said.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-07-08 10:57:27 +02:00
8bdcf4bf81
unix.7: There is a limit on the size of the file descriptor array for SCM_RIGHTS
...
The limit is defined in the kernel as SCM_MAX_FD (253).
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-07-08 10:38:44 +02:00
f1081bdc42
unix.7: Fix a minor imprecision in description of SCM_CREDENTIALS
...
To spoof credentials requires privilege (i.e., capabilities),
not UID 0.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-07-08 10:21:43 +02:00
b66d5714b1
unix.7: grfix
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-07-08 10:20:52 +02:00
bdef802116
unix.7: ffix
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-07-08 10:20:32 +02:00
09b8afdc04
execve.2, fallocate.2, getrlimit.2, io_submit.2, membarrier.2, mmap.2, msgget.2, open.2, ptrace.2, readv.2, semget.2, shmget.2, shutdown.2, syscall.2, wait.2, wait4.2, crypt.3, encrypt.3, fseek.3, getcwd.3, makedev.3, pthread_create.3, puts.3, tsearch.3, elf.5, filesystems.5, group.5, passwd.5, sysfs.5, mount_namespaces.7, posixoptions.7, time.7, unix.7, vdso.7, xattr.7, ld.so.8: tstamp
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-04-30 17:41:31 +02:00
3eb078c52f
unix.7: tfix
...
Signed-off-by: Jakub Wilk <jwilk@jwilk.net>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-04-27 14:01:50 +02:00
7934bcdfdc
unix.7: ERRORS: add EBADF for sending closed file descriptor with SCM_RIGHTS
...
As noted by Rusty Russell:
I was really surprised that sendmsg() returned EBADF on a valid fd;
turns out I was using sendmsg with SCM_RIGHTS to send a closed fd,
which gives EBADF (see test program below).
But this is only obliquely referenced in unix(7):
SCM_RIGHTS
Send or receive a set of open file descriptors
from another process. The data portion contains
an integer array of the file descriptors. The
passed file descriptors behave as though they have
been created with dup(2).
EBADF is not mentioned in the unix(7) ERRORS (it's mentioned in
dup(2)).
int fdpass_send(int sockout, int fd)
{
/* From the cmsg(3) manpage: */
struct msghdr msg = { 0 };
struct cmsghdr *cmsg;
struct iovec iov;
char c = 0;
union { /* Ancillary data buffer, wrapped in a union
in order to ensure it is suitably aligned */
char buf[CMSG_SPACE(sizeof(fd))];
struct cmsghdr align;
} u;
msg.msg_control = u.buf;
msg.msg_controllen = sizeof(u.buf);
memset(&u, 0, sizeof(u));
cmsg = CMSG_FIRSTHDR(&msg);
cmsg->cmsg_level = SOL_SOCKET;
cmsg->cmsg_type = SCM_RIGHTS;
cmsg->cmsg_len = CMSG_LEN(sizeof(fd));
memcpy(CMSG_DATA(cmsg), &fd, sizeof(fd));
msg.msg_name = NULL;
msg.msg_namelen = 0;
msg.msg_iov = &iov;
msg.msg_iovlen = 1;
msg.msg_flags = 0;
/* Keith Packard reports that 0-length sends don't work, so we
* always send 1 byte. */
iov.iov_base = &c;
iov.iov_len = 1;
return sendmsg(sockout, &msg, 0);
}
int fdpass_recv(int sockin)
{
/* From the cmsg(3) manpage: */
struct msghdr msg = { 0 };
struct cmsghdr *cmsg;
struct iovec iov;
int fd;
char c;
union { /* Ancillary data buffer, wrapped in a union
in order to ensure it is suitably aligned */
char buf[CMSG_SPACE(sizeof(fd))];
struct cmsghdr align;
} u;
msg.msg_control = u.buf;
msg.msg_controllen = sizeof(u.buf);
msg.msg_name = NULL;
msg.msg_namelen = 0;
msg.msg_iov = &iov;
msg.msg_iovlen = 1;
msg.msg_flags = 0;
iov.iov_base = &c;
iov.iov_len = 1;
if (recvmsg(sockin, &msg, 0) < 0)
return -1;
cmsg = CMSG_FIRSTHDR(&msg);
if (!cmsg
|| cmsg->cmsg_len != CMSG_LEN(sizeof(fd))
|| cmsg->cmsg_level != SOL_SOCKET
|| cmsg->cmsg_type != SCM_RIGHTS) {
errno = -EINVAL;
return -1;
}
memcpy(&fd, CMSG_DATA(cmsg), sizeof(fd));
return fd;
}
static void child(int sockfd)
{
int newfd = fdpass_recv(sockfd);
assert(newfd < 0);
exit(0);
}
int main(void)
{
int sv[2];
int pid, ret;
assert(socketpair(AF_UNIX, SOCK_STREAM, 0, sv) == 0);
pid = fork();
if (pid == 0) {
close(sv[1]);
child(sv[0]);
}
close(sv[0]);
ret = fdpass_send(sv[1], sv[0]);
printf("fdpass of bad fd return %i (%s)\n", ret, strerror(errno));
return 0;
}
Reported-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-04-12 10:55:29 +02:00
d3e7786def
unix.7: wfix
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-04-12 10:42:34 +02:00
a23d8efafc
capget.2, fanotify_init.2, fcntl.2, ioctl_tty.2, madvise.2, mbind.2, prctl.2, sched_setaffinity.2, hash.3, isgreater.3, posix_fallocate.3, sigvec.3, full.4, sd.4, wavelan.4, core.5, host.conf.5, epoll.7, signal.7, unix.7, user_namespaces.7: wfix (will fail --> fail/fails)
...
Reported-by: Pedro Alves <palves@redhat.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-20 16:36:57 +02:00
4b8c67d976
iconv.1, ldd.1, locale.1, localedef.1, memusage.1, memusagestat.1, mtrace.1, pldd.1, sprof.1, time.1, _syscall.2, add_key.2, alloc_hugepages.2, arch_prctl.2, bpf.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, copy_file_range.2, create_module.2, delete_module.2, dup.2, epoll_create.2, epoll_ctl.2, epoll_wait.2, eventfd.2, execve.2, execveat.2, fallocate.2, fanotify_init.2, fcntl.2, flock.2, fork.2, fsync.2, futex.2, futimesat.2, get_kernel_syms.2, get_mempolicy.2, get_robust_list.2, getcpu.2, getdents.2, getdomainname.2, getgid.2, getgroups.2, gethostname.2, getitimer.2, getpagesize.2, getpeername.2, getpriority.2, getrandom.2, getresuid.2, getrlimit.2, getrusage.2, getsid.2, getsockname.2, getsockopt.2, gettid.2, gettimeofday.2, getuid.2, getunwind.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_console.2, ioctl_fat.2, ioctl_ficlonerange.2, ioctl_fideduperange.2, ioctl_getfsmap.2, ioctl_iflags.2, ioctl_list.2, ioctl_ns.2, ioctl_tty.2, ioctl_userfaultfd.2, ioperm.2, iopl.2, ioprio_set.2, ipc.2, kcmp.2, kexec_load.2, keyctl.2, kill.2, link.2, listen.2, listxattr.2, llseek.2, lookup_dcookie.2, lseek.2, madvise.2, mbind.2, membarrier.2, memfd_create.2, migrate_pages.2, mincore.2, mkdir.2, mknod.2, mlock.2, mmap.2, mmap2.2, modify_ldt.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, open_by_handle_at.2, outb.2, perf_event_open.2, perfmonctl.2, personality.2, pivot_root.2, pkey_alloc.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, readv.2, reboot.2, recv.2, recvmmsg.2, remap_file_pages.2, rename.2, request_key.2, restart_syscall.2, rt_sigqueueinfo.2, s390_pci_mmio_write.2, s390_runtime_instr.2, sched_get_priority_max.2, sched_rr_get_interval.2, sched_setaffinity.2, sched_setattr.2, sched_setparam.2, sched_setscheduler.2, sched_yield.2, seccomp.2, select.2, select_tut.2, semctl.2, semget.2, semop.2, send.2, sendfile.2, sendmmsg.2, set_mempolicy.2, set_thread_area.2, set_tid_address.2, seteuid.2, setfsgid.2, setfsuid.2, setgid.2, setns.2, setpgid.2, setresuid.2, setreuid.2, setsid.2, setuid.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, socket.2, socketcall.2, socketpair.2, splice.2, spu_create.2, spu_run.2, stat.2, statfs.2, statx.2, subpage_prot.2, swapon.2, symlink.2, sync.2, sync_file_range.2, syscall.2, syscalls.2, sysctl.2, sysfs.2, sysinfo.2, syslog.2, tee.2, time.2, timer_create.2, timer_getoverrun.2, timer_settime.2, timerfd_create.2, times.2, tkill.2, truncate.2, umask.2, umount.2, uname.2, unimplemented.2, unlink.2, unshare.2, uselib.2, userfaultfd.2, ustat.2, utime.2, utimensat.2, vfork.2, vmsplice.2, wait.2, wait4.2, write.2, CPU_SET.3, INFINITY.3, __ppc_get_timebase.3, __ppc_set_ppr_med.3, __ppc_yield.3, __setfpucw.3, acos.3, acosh.3, adjtime.3, aio_fsync.3, aio_init.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, backtrace.3, basename.3, bindresvport.3, bsd_signal.3, bsearch.3, bswap.3, btree.3, byteorder.3, bzero.3, canonicalize_file_name.3, carg.3, cbrt.3, ccos.3, ccosh.3, ceil.3, cexp.3, cfree.3, clearenv.3, clock.3, clock_getcpuclockid.3, clog.3, clog10.3, clog2.3, cmsg.3, confstr.3, copysign.3, cos.3, cosh.3, crypt.3, csin.3, csinh.3, csqrt.3, ctan.3, ctanh.3, ctime.3, dbopen.3, dl_iterate_phdr.3, dladdr.3, dlerror.3, dlinfo.3, dlopen.3, dlsym.3, drand48.3, drand48_r.3, duplocale.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, fcloseall.3, fdim.3, fenv.3, ferror.3, fexecve.3, fflush.3, ffs.3, fgetc.3, fgetgrent.3, fgetpwent.3, finite.3, floor.3, fma.3, fmax.3, fmemopen.3, fmin.3, fmod.3, fmtmsg.3, fopen.3, fopencookie.3, fpclassify.3, fpurge.3, fputwc.3, fputws.3, frexp.3, fseek.3, fseeko.3, ftime.3, fts.3, ftw.3, futimes.3, gamma.3, gcvt.3, get_nprocs_conf.3, get_phys_pages.3, getaddrinfo.3, getaddrinfo_a.3, getauxval.3, getcontext.3, getcwd.3, getdate.3, getentropy.3, getenv.3, getfsent.3, getgrent.3, getgrent_r.3, getgrnam.3, getgrouplist.3, gethostbyname.3, gethostid.3, getifaddrs.3, getipnodebyname.3, getline.3, getlogin.3, getmntent.3, getnameinfo.3, getnetent.3, getnetent_r.3, getopt.3, getprotoent.3, getprotoent_r.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, getsubopt.3, getttyent.3, getumask.3, getutent.3, getwchar.3, glob.3, gnu_get_libc_version.3, grantpt.3, gsignal.3, hash.3, hsearch.3, hypot.3, iconv.3, iconv_close.3, iconv_open.3, if_nameindex.3, if_nametoindex.3, ilogb.3, inet.3, inet_net_pton.3, inet_ntop.3, inet_pton.3, initgroups.3, insque.3, intro.3, isalpha.3, isgreater.3, j0.3, key_setsecret.3, killpg.3, ldexp.3, lgamma.3, lio_listio.3, lockf.3, log.3, log10.3, log1p.3, log2.3, logb.3, login.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, mbsnrtowcs.3, mbsrtowcs.3, mbstowcs.3, mcheck.3, memccpy.3, memchr.3, memcmp.3, memcpy.3, mkfifo.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, mtrace.3, newlocale.3, nextafter.3, nextup.3, nl_langinfo.3, ntp_gettime.3, offsetof.3, on_exit.3, open_memstream.3, opendir.3, openpty.3, perror.3, popen.3, posix_fallocate.3, posix_madvise.3, posix_memalign.3, posix_openpt.3, posix_spawn.3, pow.3, pow10.3, printf.3, profil.3, program_invocation_name.3, psignal.3, pthread_atfork.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_exit.3, pthread_getattr_default_np.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_sigmask.3, pthread_sigqueue.3, pthread_testcancel.3, pthread_tryjoin_np.3, ptsname.3, putgrent.3, putpwent.3, qsort.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, rexec.3, rint.3, round.3, rpc.3, rpmatch.3, rtime.3, scalb.3, scalbln.3, scandir.3, scanf.3, sched_getcpu.3, sem_close.3, sem_destroy.3, sem_getvalue.3, sem_init.3, sem_open.3, sem_wait.3, setaliasent.3, setbuf.3, setenv.3, setlocale.3, setlogmask.3, setnetgrent.3, shm_open.3, signbit.3, significand.3, sigpause.3, sigqueue.3, sigset.3, sigvec.3, sin.3, sincos.3, sinh.3, sleep.3, sockatmark.3, sqrt.3, statvfs.3, stdarg.3, stdin.3, strcasecmp.3, strcat.3, strchr.3, strcoll.3, strcpy.3, strdup.3, strerror.3, strfmon.3, strfromd.3, strftime.3, strptime.3, strsignal.3, strstr.3, strtod.3, strtok.3, strtol.3, strtoul.3, strverscmp.3, syslog.3, system.3, sysv_signal.3, tan.3, tanh.3, telldir.3, tempnam.3, termios.3, tgamma.3, timeradd.3, tmpnam.3, toupper.3, towlower.3, towupper.3, trunc.3, ttyslot.3, tzset.3, ualarm.3, ulimit.3, undocumented.3, unlocked_stdio.3, updwtmp.3, uselocale.3, usleep.3, wcrtomb.3, wcsdup.3, wcsnrtombs.3, wcsrtombs.3, wcstombs.3, wctob.3, wcwidth.3, wordexp.3, wprintf.3, xcrypt.3, xdr.3, y0.3, cciss.4, console_codes.4, dsp56k.4, fuse.4, hd.4, hpsa.4, initrd.4, intro.4, loop.4, random.4, rtc.4, sd.4, sk98lin.4, st.4, wavelan.4, acct.5, core.5, elf.5, filesystems.5, host.conf.5, hosts.5, locale.5, nologin.5, proc.5, resolv.conf.5, rpc.5, slabinfo.5, utmp.5, aio.7, arp.7, bootparam.7, capabilities.7, cgroup_namespaces.7, cgroups.7, charsets.7, cpuset.7, ddp.7, environ.7, epoll.7, fanotify.7, feature_test_macros.7, futex.7, inode.7, inotify.7, ip.7, ipv6.7, keyrings.7, locale.7, man-pages.7, man.7, math_error.7, mount_namespaces.7, mq_overview.7, namespaces.7, netdevice.7, netlink.7, packet.7, pipe.7, pkeys.7, pthreads.7, pty.7, raw.7, rtld-audit.7, rtnetlink.7, sched.7, session-keyring.7, signal.7, sock_diag.7, socket.7, spufs.7, suffixes.7, tcp.7, udp.7, udplite.7, unicode.7, units.7, unix.7, uri.7, user_namespaces.7, vdso.7, x25.7, xattr.7, iconvconfig.8, ld.so.8, ldconfig.8, sln.8: Update timestamps
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-09-15 12:44:56 +02:00
9bc87ed07a
ctime.3, drand48.3, fmtmsg.3, getnameinfo.3, gsignal.3, strftime.3, strptime.3, cciss.4, console_codes.4, sd.4, sk98lin.4, st.4, proc.5, charsets.7, cpuset.7, pty.7, suffixes.7, udplite.7, unix.7: Use en-dash for ranges
...
Based on a patch by Bjarni Ingi Gislason.
Reported-by: Bjarni Ingi Gislason <bjarniig@rhi.hi.is>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-08-19 22:01:55 +02:00
c788525612
getrlimit.2, signalfd.2, statfs.2, tee.2, dlopen.3, duplocale.3, ftw.3, get_nprocs.3, mbstowcs.3, posix_spawn.3, strftime.3, full.4, fanotify.7, inotify.7, ip.7, netdevice.7, rtld-audit.7, unix.7: ffix
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-08-19 21:02:23 +02:00
a2b7a14421
sinh.3, sockatmark.3, stdarg.3, stpcpy.3, syslog.3, system.3, tanh.3, termios.3, wctrans.3, wctype.3, wcwidth.3, wordexp.3, cciss.4, fuse.4, initrd.4, loop.4, acct.5, hosts.5, nss.5, operator.7, unix.7: ffix
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-08-19 13:47:27 +02:00
b8302363ed
execve.2, ioctl_console.2, ioctl_iflags.2, ioctl_ns.2, ioctl_userfaultfd.2, kcmp.2, kexec_load.2, keyctl.2, link.2, listxattr.2, membarrier.2, memfd_create.2, mmap.2, modify_ldt.2, mprotect.2, msgctl.2, nanosleep.2, open_by_handle_at.2, perf_event_open.2, poll.2, posix_fadvise.2, process_vm_readv.2, ptrace.2, query_module.2, quotactl.2, readdir.2, readv.2, recv.2, recvmmsg.2, request_key.2, sched_rr_get_interval.2, sched_setaffinity.2, sched_setattr.2, sched_setscheduler.2, seccomp.2, select.2, select_tut.2, semctl.2, semop.2, send.2, sendmmsg.2, set_thread_area.2, setns.2, shmctl.2, shmget.2, sigaction.2, sigaltstack.2, signal.2, sigwaitinfo.2, stat.2, statfs.2, statx.2, sync_file_range.2, syscall.2, sysctl.2, sysinfo.2, tee.2, timer_create.2, timer_settime.2, timerfd_create.2, unshare.2, userfaultfd.2, ustat.2, utime.2, utimensat.2, vmsplice.2, wait.2, adjtime.3, aio_init.3, backtrace.3, basename.3, bswap.3, btree.3, clock_getcpuclockid.3, cmsg.3, confstr.3, dbopen.3, dl_iterate_phdr.3, dladdr.3, dlinfo.3, dlopen.3, duplocale.3, encrypt.3, end.3, endian.3, err.3, errno.3, ether_aton.3, fgetgrent.3, fgetpwent.3, fmemopen.3, frexp.3, ftime.3, fts.3, getaddrinfo.3, getaddrinfo_a.3, getdate.3, getfsent.3, getgrent.3, getgrent_r.3, getgrnam.3, getgrouplist.3, gethostbyname.3, getifaddrs.3, getipnodebyname.3, getmntent.3, getnameinfo.3, getnetent.3, getopt.3, getprotoent.3, getprotoent_r.3, getpw.3, getpwent.3, getpwent_r.3, getpwnam.3, getrpcent.3, getservent.3, getservent_r.3, getspnam.3, getttyent.3, glob.3, gnu_get_libc_version.3, hash.3, hsearch.3, if_nameindex.3, inet.3, inet_net_pton.3, inet_pton.3, insque.3, isalpha.3, makecontext.3, mallinfo.3, malloc_info.3, mallopt.3, matherr.3, mbstowcs.3, mcheck.3, memchr.3, mq_getattr.3, mq_open.3, mq_receive.3, mq_send.3, mtrace.3, newlocale.3, ntp_gettime.3, posix_openpt.3, printf.3, pthread_attr_init.3, pthread_attr_setschedparam.3, pthread_cancel.3, pthread_cleanup_push.3, pthread_cleanup_push_defer_np.3, pthread_create.3, pthread_getattr_default_np.3, pthread_getattr_np.3, pthread_getcpuclockid.3, pthread_setname_np.3, pthread_setschedparam.3, pthread_sigmask.3, pthread_tryjoin_np.3, readdir.3, realpath.3, recno.3, regex.3, rpc.3, scanf.3, sched_getcpu.3, sem_wait.3, setaliasent.3, sigqueue.3, statvfs.3, strcat.3, strcpy.3, strftime.3, strtok.3, strtol.3, strverscmp.3, toupper.3, ttyslot.3, xdr.3, fuse.4, loop.4, rtc.4, st.4, acct.5, core.5, elf.5, slabinfo.5, aio.7, arp.7, capabilities.7, cgroup_namespaces.7, cgroups.7, ddp.7, fanotify.7, feature_test_macros.7, inode.7, inotify.7, ip.7, keyrings.7, locale.7, mount_namespaces.7, namespaces.7, netdevice.7, netlink.7, packet.7, pkeys.7, pthreads.7, sched.7, session-keyring.7, sock_diag.7, socket.7, spufs.7, udplite.7, unix.7, user_namespaces.7, vdso.7, x25.7, ld.so.8: Use consistent markup for code snippets
...
Change .nf/.fi to .EX/.EE
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-08-19 13:47:27 +02:00
e646a1bad9
ioctl_console.2, ioctl_getfsmap.2, ioctl_iflags.2, ioctl_list.2, ioctl_ns.2, kcmp.2, kexec_load.2, keyctl.2, link.2, mmap.2, modify_ldt.2, msgctl.2, poll.2, query_module.2, quotactl.2, recv.2, recvmmsg.2, sched_setscheduler.2, seccomp.2, select.2, semctl.2, semop.2, send.2, set_thread_area.2, setns.2, shmctl.2, shmget.2, sigaction.2, sysinfo.2, timer_create.2, timerfd_create.2, uname.2, unshare.2, userfaultfd.2, ustat.2, utimensat.2, vmsplice.2, wait.2, adjtime.3, backtrace.3, bswap.3, btree.3, clock_getcpuclockid.3, confstr.3, dbopen.3, dl_iterate_phdr.3, dlinfo.3, duplocale.3, encrypt.3, end.3, endian.3, err.3, errno.3, fmemopen.3, fopencookie.3, frexp.3, fts.3, ftw.3, getaddrinfo.3, getaddrinfo_a.3, getcontext.3, getgrouplist.3, getifaddrs.3, getipnodebyname.3, getnameinfo.3, getopt.3, getprotoent_r.3, getpwent_r.3, getrpcent.3, getservent_r.3, getttyent.3, getumask.3, glob.3, gnu_get_libc_version.3, hash.3, hsearch.3, inet.3, inet_pton.3, insque.3, isalpha.3, makecontext.3, mallopt.3, mbstowcs.3, mcheck.3, memchr.3, mq_getattr.3, mq_open.3, mtrace.3, newlocale.3, ntp_gettime.3, offsetof.3, posix_openpt.3, printf.3, pthread_setname_np.3, pthread_setschedparam.3, rpc.3, scanf.3, sched_getcpu.3, sem_wait.3, setaliasent.3, sigqueue.3, sigvec.3, stdarg.3, strcat.3, strcpy.3, strftime.3, strtol.3, toupper.3, ttyslot.3, fuse.4, loop.4, st.4, elf.5, cgroup_namespaces.7, cgroups.7, feature_test_macros.7, inode.7, inotify.7, keyrings.7, man-pages.7, math_error.7, mount_namespaces.7, mq_overview.7, pthreads.7, sched.7, session-keyring.7, udplite.7, unix.7, vdso.7: Use consistent markup for code snippets
...
The preferred form is
.PP/.IP
.in +4n
.EX
<code>
.EE
.in
.PP/.IP
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-08-19 13:47:26 +02:00
e7d0bb4715
memusage.1, clone.2, eventfd.2, futex.2, getdents.2, ioctl_fat.2, ioctl_ns.2, kcmp.2, keyctl.2, mmap.2, mprotect.2, msgop.2, recvmmsg.2, request_key.2, sched_setaffinity.2, seccomp.2, setns.2, tee.2, timer_create.2, timerfd_create.2, unshare.2, userfaultfd.2, wait.2, __ppc_get_timebase.3, backtrace.3, bswap.3, clock_getcpuclockid.3, dl_iterate_phdr.3, dlinfo.3, dlopen.3, duplocale.3, end.3, endian.3, fmemopen.3, fopencookie.3, frexp.3, ftw.3, getdate.3, getgrouplist.3, getifaddrs.3, getprotoent_r.3, getservent_r.3, gnu_get_libc_version.3, if_nameindex.3, inet.3, inet_net_pton.3, inet_pton.3, insque.3, makecontext.3, mallinfo.3, malloc_info.3, mallopt.3, matherr.3, mbstowcs.3, mcheck.3, mq_getattr.3, mq_notify.3, newlocale.3, offsetof.3, posix_spawn.3, pthread_attr_init.3, pthread_cancel.3, pthread_cleanup_push.3, pthread_create.3, pthread_getattr_default_np.3, pthread_getattr_np.3, pthread_getcpuclockid.3, pthread_setname_np.3, pthread_setschedparam.3, pthread_sigmask.3, scandir.3, sem_wait.3, strcat.3, strftime.3, strtok.3, strtol.3, strverscmp.3, loop.4, core.5, aio.7, fanotify.7, feature_test_macros.7, inotify.7, pkeys.7, unix.7, user_namespaces.7: Use .EX/.EE for EXAMPLE programs
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-08-16 10:44:33 +02:00
5711c04f8f
environ.7, epoll.7, feature_test_macros.7, futex.7, ip.7, ipv6.7, locale.7, man-pages.7, man.7, math_error.7, netdevice.7, netlink.7, packet.7, raw.7, rtld-audit.7, rtnetlink.7, sock_diag.7, socket.7, tcp.7, udp.7, udplite.7, unix.7, uri.7, vdso.7: Formatting fix: replace blank lines with .PP/.IP
...
Blank lines shouldn't generally appear in *roff source (other
than in code examples), since they create large vertical
spaces between text blocks.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-08-16 03:06:54 +02:00
f90f031e0f
_exit.2, accept.2, chmod.2, dup.2, getgroups.2, keyctl.2, link.2, mkdir.2, mknod.2, pipe.2, poll.2, reboot.2, rename.2, select.2, select_tut.2, stat.2, symlink.2, unlink.2, __ppc_get_timebase.3, abs.3, bzero.3, crypt.3, dbopen.3, dl_iterate_phdr.3, dlinfo.3, dlsym.3, duplocale.3, encrypt.3, err.3, ffs.3, fpurge.3, ftw.3, getdate.3, gethostbyname.3, getlogin.3, getmntent.3, getpwent_r.3, getpwnam.3, getspnam.3, inet_pton.3, insque.3, isfdtype.3, mallinfo.3, mallopt.3, matherr.3, mcheck.3, mempcpy.3, mkfifo.3, mq_getattr.3, newlocale.3, open_memstream.3, openpty.3, perror.3, posix_memalign.3, posix_spawn.3, printf.3, pthread_attr_init.3, pthread_cancel.3, pthread_cleanup_push.3, pthread_create.3, pthread_getattr_default_np.3, pthread_getattr_np.3, pthread_getcpuclockid.3, pthread_setaffinity_np.3, pthread_setschedparam.3, pthread_sigmask.3, pthread_sigqueue.3, regex.3, resolver.3, rpmatch.3, rtnetlink.3, scanf.3, setbuf.3, strchr.3, strfromd.3, strverscmp.3, termios.3, tsearch.3, unlocked_stdio.3, updwtmp.3, netlink.7, rtld-audit.7, sock_diag.7, unix.7: ffix
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-08-15 17:44:09 +02:00
06b8a13be7
unix.7: wfix
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-03-18 20:42:58 +01:00
31a1b45ece
add_key.2, execve.2, fork.2, fsync.2, getrandom.2, getrlimit.2, getxattr.2, inotify_add_watch.2, ioctl.2, ioctl_fat.2, kcmp.2, keyctl.2, link.2, listxattr.2, lseek.2, madvise.2, mincore.2, mlock.2, nanosleep.2, poll.2, posix_fadvise.2, read.2, readv.2, recv.2, request_key.2, select.2, send.2, setxattr.2, sigaction.2, stat.2, statfs.2, syscall.2, tkill.2, truncate.2, unlink.2, vfork.2, write.2, __ppc_set_ppr_med.3, aio_suspend.3, backtrace.3, bcmp.3, bcopy.3, bzero.3, exec.3, fopen.3, fts.3, ftw.3, getline.3, getmntent.3, getopt.3, memccpy.3, memchr.3, memcmp.3, memcpy.3, memfrob.3, memmem.3, memmove.3, memset.3, random.3, random_r.3, resolver.3, scandir.3, scanf.3, sem_post.3, sem_wait.3, setjmp.3, sleep.3, strerror.3, strverscmp.3, system.3, random.4, core.5, intro.5, resolv.conf.5, slabinfo.5, environ.7, ip.7, keyrings.7, man.7, persistent-keyring.7, pipe.7, process-keyring.7, random.7, session-keyring.7, signal-safety.7, signal.7, thread-keyring.7, unix.7, user-keyring.7, user-session-keyring.7, ld.so.8: tstamp
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-03-13 21:14:49 +01:00
c9a39feadc
unix.7: Since Linux 3.4, UNIX domain sockets support MSG_TRUNC
...
This was correctly noted in recv(2), but the unix(7) page
was not correspondingly updated for the Linux 3.4 change.
Reported-by: Sergey Polovko <sergey@polovko.me>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-01-16 09:57:12 +13:00
4529d4e536
unix.7: tfix
...
Signed-off-by: Jakub Wilk <jwilk@jwilk.net>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-01-04 15:27:41 +13:00
70fdcbc20a
unix.7: Note that the ETOOMANYREFS diagnostic may be backported to older kernels
...
Reported-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2016-12-17 10:33:55 +01:00
dc4eea68b5
unix.7: Document ETOOMANYREFS for SCM_RIGHTS send exceeding RLIMIT_NOFILE limit
...
Reviewed-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2016-12-17 10:33:55 +01:00
9ca2e0c114
unix.7: tfix
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2016-12-16 11:30:16 +01:00
110039c1da
unix.7: Remove mention of recvmsg() from discussion of EPIPE error
...
See https://bugzilla.kernel.org/show_bug.cgi?id=137351
Reported-by: Laurent Georget <laurent.georget@supelec.fr>
Reported-by: Ivan Kharpalev <ivan.kharpalev@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2016-07-24 21:27:09 +02:00
3df541c0e6
ldd.1, localedef.1, add_key.2, chroot.2, clone.2, fork.2, futex.2, get_mempolicy.2, get_robust_list.2, getitimer.2, getpriority.2, ioctl.2, ioctl_ficlonerange.2, ioctl_fideduperange.2, kcmp.2, kill.2, lookup_dcookie.2, mmap.2, mount.2, open.2, pciconfig_read.2, perf_event_open.2, prctl.2, process_vm_readv.2, ptrace.2, quotactl.2, recv.2, setfsgid.2, setfsuid.2, sysinfo.2, umask.2, umount.2, unshare.2, utimensat.2, wait.2, assert.3, fmax.3, fmin.3, getauxval.3, inet_pton.3, malloc_hook.3, memmem.3, mkdtemp.3, mktemp.3, printf.3, strcasecmp.3, strcat.3, strtoul.3, strxfrm.3, console_codes.4, console_ioctl.4, lirc.4, tty.4, vcs.4, charmap.5, elf.5, locale.5, proc.5, repertoiremap.5, utmp.5, capabilities.7, cgroup_namespaces.7, cgroups.7, charsets.7, cp1251.7, cp1252.7, credentials.7, feature_test_macros.7, iso_8859-1.7, iso_8859-15.7, iso_8859-5.7, koi8-r.7, koi8-u.7, man-pages.7, mount_namespaces.7, namespaces.7, netlink.7, pid_namespaces.7, unix.7, user_namespaces.7, utf-8.7: tstamp
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2016-07-17 18:10:19 +02:00
7f98a23983
unix.7: Update text on socket permissions on other systems
...
At least some of the modern BSDs seem to check for write
permission on a socket. (I tested OpenBSD 5.9.) On Solaris 10,
some light testing suggested that write permission is still
not checked on that system.
See https://bugzilla.kernel.org/show_bug.cgi?id=120061 (and
https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-1999-1402 )
Reported-by: Carsten Grohmann <carstengrohmann@gmx.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2016-06-20 15:21:30 +02:00
44cca454d2
unix.7: Note that umask / permissions have no effect for abstract sockets
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2016-06-20 14:08:31 +02:00
Michael Kerrisk