I disagree with Corona688. Being in the foreground or background shouldn't affect what ioctl's a device supports.
It is my belief that the cause of the malfunction is that STDIN is not a terminal because the shell is redirecting STDIN from /dev/null when it runs the process (or pipeline) in the background.
Quote:
Originally Posted by POSIX
The standard input for an asynchronous list, before any explicit redirections are performed, shall be considered to be assigned to a file that has the same properties as /dev/null. If it is an interactive shell, this need not happen. In all cases, explicit redirection of standard input shall override this activity.
I don't know what system you're running, but on a circa 2007 Debian Linux install, /usr/include/asm-generic/errno-base.h (which is the ultimate destination of the #include breadcrumb trail beginning at /usr/include/errno.h) has this to say:
Regards,
Alister
Hi,
We are running a perl script to upload some data using SQL* Loader. We pipe the data in a http request to SQL*Loader which loads the data to the database. We encounter the error "Inappropirate ioctl for device" when we try to upload huge data. Any solution would be greatly appreciated.... (4 Replies)
When I try to format a slice in Solaris 10 I get the follow error :confused: :
-bash-3.00# mkfs /dev/dsk/c1d0s5 18877824
Can not determine partition size: Inappropriate ioctl for device
Some format command output:....
AVAILABLE DISK SELECTIONS:
0. c1d0 <DEFAULT cyl 38735 alt 2... (0 Replies)
Hello,
I have a cron entry:
59 23 * * * . $HOME/.profile;mydate=`date '+%Y%m%d'`;mv filename filename_$mydate
Which works fine interactively, but gives me the following error when it runs in cron:
Your "cron" job on servername
. $HOME/.profile;mydate=`date '+
produced the... (4 Replies)
When I try to format a slice in Solaris 10 I get the follow error :
-bash-3.00# mkfs /dev/dsk/c1d0s5 18877824
Can not determine partition size: Inappropriate ioctl for device
Some format command output:....
AVAILABLE DISK SELECTIONS:
0. c1d0 <DEFAULT cyl 38735 alt 2 hd 64 sec 63>... (2 Replies)
Dear all,
Problem goes like this:
I have a shell script which when run manually runs perfectly.
When same script is executed through a job schdeduler I get an error as Inappropriate ioctl for device and the script fails.
This problems seems quite guiling to me.
Any clues are heartly... (11 Replies)
Hello guys,
on my Red Hat machine the /bin/mt status command gives the output dev/tape: inappropriate ioctl for device. This messages comes up after the Server has been rebooted.
Anybody an idea?
Thx
masterofdesaster (8 Replies)
Hi All,
Am finding performance of my SD card using hdparm.
Code:
hdparm -tT /dev/BlockDev0
/dev/BlockDev0:
Timing cached reads: 1118 MB in 2.00 seconds = 558.61 MB/sec
HDIO_DRIVE_CMD(null) (wait for flush complete) failed: Inappropriate
ioctl for device
Timing buffered disk... (1 Reply)
Hello everyone
I am finishing a script allowing me to purge logs on multiple servers, i have one last pb with the ssh command.........it is throwing me the following error :
tcgetattr: Inappropriate ioctl for device (full screen in attached file 1, full script in attached file 2)
It... (15 Replies)
Hi!
I am getting a nohup issue on mac osx while trying to start a process through nohup in the startup script.
nohup: can't detach from console: Inappropriate ioctl for device
Please help!
Thanks,
Allan. (0 Replies)
Hi,
ssh -q -t -l $usr $host bin/test.sh
I am using above command to run script remotely. script is working without any issues. but I am getting "tcgetattr: Inappropriate ioctl for device" message on console.
plz help how can I avoid this message.
Thanks
Moved thread from Emergency... (1 Reply)
Discussion started by: Kri
1 Replies
LEARN ABOUT OSX
daemon
DAEMON(3) BSD Library Functions Manual DAEMON(3)NAME
daemon -- run in the background
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <stdlib.h>
int
daemon(int nochdir, int noclose);
DESCRIPTION
The daemon() function is for programs wishing to detach themselves from the controlling terminal and run in the background as system daemons.
On Mac OS X, the use of this API is discouraged in favor of using launchd(8).
Unless the argument nochdir is non-zero, daemon() changes the current working directory to the root (/).
Unless the argument noclose is non-zero, daemon() will redirect standard input, standard output, and standard error to /dev/null.
RETURN VALUES
The daemon() function returns the value 0 if successful; otherwise the value -1 is returned and the global variable errno is set to indicate
the error.
ERRORS
The daemon() function may fail and set errno for any of the errors specified for the library functions fork(2) and setsid(2).
SEE ALSO fork(2), setsid(2), sigaction(2)HISTORY
The daemon() function first appeared in 4.4BSD.
CAVEATS
Unless the noclose argument is non-zero, daemon() will close the first three file descriptors and redirect them to /dev/null. Normally,
these correspond to standard input, standard output, and standard error. However, if any of those file descriptors refer to something else,
they will still be closed, resulting in incorrect behavior of the calling program. This can happen if any of standard input, standard out-
put, or standard error have been closed before the program was run. Programs using daemon() should therefore either call daemon() before
opening any files or sockets, or verify that any file descriptors obtained have values greater than 2.
The daemon() function temporarily ignores SIGHUP while calling setsid(2) to prevent a parent session group leader's calls to fork(2) and then
_exit(2) from prematurely terminating the child process.
BSD June 9, 1993 BSD