Comment # 11
on bug 1004049
from Dr. Werner Fink
(In reply to Ludwig Nussel from comment #10)
This does not solve the problem on Leap 42.1 where opentty(3) does a chown(2)
... btw: I've running a Leap 42.2 here in a VM and ... let's see ... OK for
werner via NIS it does not, but for the local user linux
27408 open("/dev/ptmx", O_RDWR) = 5
27408 statfs("/dev/pts", {f_type="DEVPTS_SUPER_MAGIC", f_bsize=4096,
f_blocks=0, f_bfree=0, f_bavail=0, f_files=0, f_ffree=0, f_fsid={0, 0},
f_namelen=255, f_frsize=4096}) = 0
27408 rt_sigaction(SIGCHLD, {SIG_DFL, [], SA_RESTORER|SA_RESTART,
0x7f2060c9b950}, {0x406510, [], SA_RESTORER|SA_RESTART, 0x7f2060c9b950}, 8) = 0
27408 ioctl(5, TCGETS, {B38400 opost isig icanon echo ...}) = 0
27408 ioctl(5, TIOCGPTN, [1]) = 0
27408 stat("/dev/pts/1", {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 1), ...})
= 0
27408 ioctl(5, TCGETS, {B38400 opost isig icanon echo ...}) = 0
27408 ioctl(5, TIOCGPTN, [1]) = 0
27408 stat("/dev/pts/1", {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 1), ...})
= 0
27408 getuid() = 1000
27408 socket(PF_LOCAL, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 6
27408 connect(6, {sa_family=AF_LOCAL, sun_path="/var/run/nscd/socket"}, 110) =
0
27408 sendto(6, "\2\0\0\0\f\0\0\0\6\0\0\0group\0", 18, MSG_NOSIGNAL, NULL, 0) =
18
27408 poll([{fd=6, events=POLLIN|POLLERR|POLLHUP}], 1, 5000) = 1 ([{fd=6,
revents=POLLIN|POLLHUP}])
27408 recvmsg(6, {msg_name(0)=NULL, msg_iov(2)=[{"group\0", 6},
{"\310O\3\0\0\0\0\0", 8}], msg_controllen=20, [{cmsg_len=20,
cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, [7]}], msg_fla
gs=MSG_CMSG_CLOEXEC}, MSG_CMSG_CLOEXEC) = 14
27408 mmap(NULL, 217032, PROT_READ, MAP_SHARED, 7, 0) = 0x7f20618ad000
27408 close(7) = 0
27408 close(6) = 0
27408 ioctl(5, TIOCSPTLCK, [0]) = 0
27408 rt_sigaction(SIGCHLD, {0x406510, [], SA_RESTORER|SA_RESTART,
0x7f2060c9b950}, {SIG_DFL, [], SA_RESTORER|SA_RESTART, 0x7f2060c9b950}, 8) = 0
27408 ioctl(5, TCFLSH, 0x2) = 0
27408 ioctl(5, TIOCPKT, [1]) = 0
27408 fcntl(5, F_SETFL, O_RDONLY|O_NONBLOCK) = 0
27408 ioctl(5, TCFLSH, 0x2) = 0
27408 chown("/dev/pts/1", 1000, 5) = 0
27408 chmod("/dev/pts/1", 0620) = 0
27408 brk(0xf77000) = 0xf77000
and at exit
27408 access("/var/run/utmpx", F_OK) = -1 ENOENT (No such file or directory)
27408 open("/var/run/utmp", O_RDONLY|O_CLOEXEC) = 6
27408 lseek(6, 0, SEEK_SET) = 0
27408 alarm(0) = 0
27408 rt_sigaction(SIGALRM, {0x7f2060d836b0, [], SA_RESTORER, 0x7f2060c9b950},
{SIG_DFL, [], 0}, 8) = 0
27408 alarm(10) = 0
27408 fcntl(6, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=0, len=0}) = 0
27408 read(6,
"\2\0\0\0\0\0\0\0~\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 384) =
384
27408 read(6, "\7\0\0\0(\f\0\0tty1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"...,
384) = 384
27408 read(6,
"\1\0\0\0005\0\0\0~\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 384) =
384
27408 read(6,
"\10\0\0\0\375j\0\0pts/1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 384) = 384
27408 read(6, "", 384) = 0
27408 fcntl(6, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=0, len=0}) = 0
27408 alarm(0) = 10
27408 rt_sigaction(SIGALRM, {SIG_DFL, [], SA_RESTORER, 0x7f2060c9b950}, NULL,
8) = 0
27408 chmod("/dev/pts/1", 0666) = 0
27408 chown("/dev/pts/1", 0, 0) = -1 EPERM (Operation not permitted)
there is a chown