search for: f_dupfd

The following is special to sshd 3.9p1 under ReliantUnix 5.45. It does not occur under ReliantUnix 5.43 nor under Solaris 5.8: `pwd`/sshd-3.9 -e -D -d -d -d Now connecting from outside [...] debug1: inetd sockets after dupping: 3, 3 debug1: get_port() calls get_sock_port(3) debug1: getpeername failed: Operation not supported on transport endpoint lsof proves FD 3 is an established TCP

...OpenSSH_5.4p1, OpenSSL 0.9.8m 25 Feb 2010 and when I run a truss: [snipped] kwrite(4, " ?9E ? d ? ? e 9 ? O\b ?".., 576) = 576 _select(5, 0x2005DC28, 0x00000000, 0x00000000, 0x00000000) = 1 kread(4, " ?8E07 y ? ? ? } ? < ? ?".., 8192) = 32 kfcntl(0, F_DUPFD, 0x00000000) = 5 kfcntl(1, F_DUPFD, 0x00000000) = 6 kfcntl(2, F_DUPFD, 0x00000000) = 7 kioctl(5, 22528, 0x00000000, 0x00000000) = 0 kioctl(6, 22528, 0x00000000, 0x00000000) = 0 kioctl(7, 22528, 0x00000000, 0x00000000)...

Hello, System: Solaris 8/9 Samba: 3.02 and 3.06 We have problems with accessing files (from Windows XP) on a samba server that are mounted over nfs (on the server). Some users have symlinks in their home directories to nfs resources. When they try to copy file located in nfs the client simply hangs. To make the thing even stranger: Sometimes it also works (after restarting the samba server

On 14/10/17 07:44, Damien Miller wrote: > On Fri, 13 Oct 2017, David Newall wrote: >> On 13/10/17 16:22, Damien Miller wrote: >> > At a minimum, I think we'd have to dup2 a fd to /dev/null to >> > STDOUT_FILENO so writes to stdout (e.g. from ill-behaved >> > libraries) have somewhere to go. >> >> Would that really be useful?? Output from

...lush(NULL)' is + * supposed to reset the underlying offset of seekable stdin, but + * glibc is buggy and requires an explicit fflush(stdin) as + * well. https://sourceware.org/bugzilla/show_bug.cgi?id=12799 + */ + fflush (stdin); + fflush (NULL); + if (listen_stdin || run) { +#ifndef F_DUPFD_CLOEXEC +#define F_DUPFD_CLOEXEC F_DUPFD +#endif + orig_in = fcntl (STDIN_FILENO, F_DUPFD_CLOEXEC, STDERR_FILENO + 1); + orig_out = fcntl (STDOUT_FILENO, F_DUPFD_CLOEXEC, STDERR_FILENO + 1); +#if F_DUPFD == F_DUPFD_CLOEXEC + orig_in = set_cloexec (orig_in); + orig_out = set_cloexec (ori...

...e originals + * when needed. We are still single-threaded at this point, and + * already checked that stdin/out were open, so we don't have to + * worry about other threads accidentally grabbing our intended fds, + * or races on FD_CLOEXEC. + */ + if (listen_stdin || run) { +#ifndef F_DUPFD_CLOEXEC +#define F_DUPFD_CLOEXEC F_DUPFD +#endif + orig_in = fcntl (STDIN_FILENO, F_DUPFD_CLOEXEC, STDERR_FILENO + 1); + orig_out = fcntl (STDOUT_FILENO, F_DUPFD_CLOEXEC, STDERR_FILENO + 1); +#if F_DUPFD == F_DUPFD_CLOEXEC + orig_in = set_cloexec (orig_in); + orig_out = set_cloexec (ori...

...|| rootshell == 0) return; if (on) { - int ofd; - ofd = fd = open(_PATH_TTY, O_RDWR); + fd = open(_PATH_TTY, O_RDWR); if (fd < 0) { fd += 3; - while (!isatty(fd) && --fd >= 0) - ; + while (!isatty(fd)) + if (--fd < 0) + goto out; } - fd = fcntl(fd, F_DUPFD, 10); - close(ofd); - if (fd < 0) - goto out; - fcntl(fd, F_SETFD, FD_CLOEXEC); + fd = savefd(fd); do { /* while we are in the background */ if ((pgrp = tcgetpgrp(fd)) < 0) { out: diff --git a/usr/dash/redir.c b/usr/dash/redir.c index aab1585..9e0fae5 100644 --- a/usr/dash/redir...

...= 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 open("/dev/tty9", O_WRONLY|O_CREAT|O_TRUNC, 0666) = 3 fcntl(1, F_GETFD) = 0 fcntl(1, F_DUPFD, 10) = 10 fcntl(1, F_GETFD) = 0 fcntl(10, F_SETFD, FD_CLOEXEC) = 0 dup2(3, 1) = 1 close(3) = 0 write(1, "Asterisk ended with exit status "..., 34) = 34 dup2(10, 1)...

http://bugzilla.mindrot.org/show_bug.cgi?id=350 ------- Additional Comments From mindrot at extern.wiggy.net 2002-07-10 20:10 ------- This happens with both privsep enabled and disabled. ------- You are receiving this mail because: ------- You are the assignee for the bug, or are watching the assignee.

This is what I've been playing with in response to my earlier question about what to do with 'nbdkit -s sh -' (https://www.redhat.com/archives/libguestfs/2020-April/msg00032.html) I'm still open to ideas on a better name, and/or whether adding <stdbool.h> to our public include files is a good idea (if not, returning int instead of bool is tolerable). Eric Blake (2):

Some background information. I have used Debian with Asterisk for several years. Have encountered zero problems. I am now trying to setup an Asterisk on a CentOS7 box using VMWare Workstation. I am brand new to CentOS and RHEL so I may be missing something obvious. I am installing CentOS Minimal Install and Asterisk from Source. (I have installed Asterisk from Source on Debian hundreds of

Dear all, we're having two different problems with migrations in libvirt, running as root user on host machines with CentOS release 5.5 (Final), kernel: Linux 2.6.32.24 #3 SMP Fri Oct 29 16:22:02 BST 2010 x86_64 x86_64 x86_64 GNU/Linux First case: virsh version Compiled against library: libvir 0.9.4 Using library: libvir 0.9.4 Using API: QEMU 0.9.4 Running hypervisor: QEMU 1.0.50

...osing a file descriptor cause it to be removed from all epoll sets automatically? A6 Yes, but be aware of the following point. A file descriptor is a reference to an open file description (see open(2)). Whenever a descriptor is duplicated via dup(2), dup2(2), fcntl(2) F_DUPFD, or fork(2), a new file descriptor referring to the same open file description is created. An open file description continues to exist until all file descriptors referring to it have been closed. A file descriptor is removed from an epoll set only after all the file descriptors...

In v2: - use int instead of bool in the public header - split the tests from the code - don't overload test-layers; instead, add new tests - add a missing fflush exposed by the new tests - other minor cleanups Eric Blake (3): server: Add nbdkit_stdio_safe server: Sanitize stdin/out before running plugin code server: More tests of stdin/out handling docs/nbdkit-plugin.pod |

We brought up a test cluster to investigate GlusterFS. Using the Quick Start instructions, we brought up a 2 server 1 brick replicating setup and mounted to it from a third box with the fuse mount (all ver 3.4.1) # gluster volume info Volume Name: mailtest Type: Replicate Volume ID: 9e412774-b8c9-4135-b7fb-bc0dd298d06a Status: Started Number of Bricks: 1 x 2 = 2 Transport-type: tcp Bricks:

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta http-equiv="Content-Type" content="text/html;charset=ISO-8859-1"> <title></title> </head> <body text="#330000" bgcolor="#ffffff"> <tt><font size="+1">I am attempting to run the sun webserver 7

...O_CREAT 0x0100 +#define O_TRUNC 0x0200 +#define O_EXCL 0x0400 +#define O_NOCTTY 0x0800 +#define FASYNC 0x1000 +#define O_LARGEFILE 0x2000 +#define O_DIRECT 0x8000 +#define O_DIRECTORY 0x10000 +#define O_NOFOLLOW 0x20000 +#define O_NOATIME 0x40000 + +#define O_NDELAY O_NONBLOCK + +#define F_DUPFD 0 +#define F_GETFD 1 +#define F_SETFD 2 +#define F_GETFL 3 +#define F_SETFL 4 +#define F_GETLK 14 +#define F_SETLK 6 +#define F_SETLKW 7 + +#define F_SETOWN 24 +#define F_GETOWN 23 +#define F_SETSIG 10 +#define F_GETSIG 11 + +#define F_GETLK64 33 +#define F_SETLK64 34 +#define F_SETLKW64 35...

...lared without a macro... yes checking for dirfd... yes checking whether dirfd is declared... (cached) yes checking whether dirfd is a macro... no checking whether // is distinct from /... (cached) no checking whether dup2 works... yes checking for error_at_line... yes checking whether fcntl handles F_DUPFD correctly... yes checking whether fcntl understands F_DUPFD_CLOEXEC... needs runtime check checking whether fcntl is declared without a macro... yes checking whether openat is declared without a macro... yes checking whether fdopendir is declared... (cached) yes checking whether fdopendir works......

...lared without a macro... yes checking for dirfd... yes checking whether dirfd is declared... (cached) yes checking whether dirfd is a macro... no checking whether // is distinct from /... (cached) no checking whether dup2 works... yes checking for error_at_line... yes checking whether fcntl handles F_DUPFD correctly... yes checking whether fcntl understands F_DUPFD_CLOEXEC... needs runtime check checking whether fcntl is declared without a macro... yes checking whether openat is declared without a macro... yes checking whether fdopendir is declared... (cached) yes checking whether fdopendir works......

...lared without a macro... yes checking for dirfd... yes checking whether dirfd is declared... (cached) yes checking whether dirfd is a macro... no checking whether // is distinct from /... (cached) no checking whether dup2 works... yes checking for error_at_line... yes checking whether fcntl handles F_DUPFD correctly... yes checking whether fcntl understands F_DUPFD_CLOEXEC... needs runtime check checking whether fcntl is declared without a macro... yes checking whether openat is declared without a macro... yes checking whether fdopendir is declared... (cached) yes checking whether fdopendir works......