![]() The easiest thing to do is stick an " or die 'Cannot open $myfile' statement at the end of you open and you can choose your own meaningful message.Found malicious artifacts related to "185.145.128.177" (ASN:, Owner: ). So it tried an "IOCTL" operation 'open for write' on a file handle which does not allow write operations which is an inappropriate IOCTL operation for that device/file. In order for perl to be really useful it mirrors this model very closely, and does not treat files by emulating a magnetic tape as many 4gls do. They can be areas on disk organized by a file system, but they could equally well be a network connection, a bit of shared memory, the buffer output from another process, a screen or a keyboard. "files" in *nix type systems are very much an abstract concept. ![]() Then find out what file number was used, and what open() call returned that file number. You'll recognize ENOTTY, followed by the actual printing of the error message. To find out what ioctl is being made that fails, and on what file descriptor, run the script under strace/truss. More generally, it is triggered when doing an ioctl on a device that does not support that ioctl, hence the error string. echo mode) on a file descriptor that was no terminal (but, say, a regular file), hence ENOTTY. It used to be triggerred primarily by attempts to configure terminal properties (e.g. "inappropriate ioctl for device" is the error string for the ENOTTY error. Since this is a fatal error and also quite difficult to debug, maybe the fix could be put somewhere (in the provided command line?): export GPG_TTY=$(tty) If you'd show your code, I bet someone would rapidly point out your error. Odd errors like "inappropriate ioctl for device" are usually a result of checking $! at some point other than just after a system call failed. If open actually did return false for you, and you found ENOTTY in $! then I would consider this a small bug (giving a useless value of $!) but I would also be very curious as to how it happened. As ysth says, the most common reason for seeing an unexpected value in $! is checking it when it's not valid - that is, anywhere other than immediately after a syscall failed, so testing the result codes of your operations is critically important. If the file is a regular file and not a tty, the ioctl fails and sets errno to ENOTTY (string value: "Inappropriate ioctl for device"). When Perl opens a file, it checks whether or not the file is a TTY (so that it can answer the -T $fh filetest operator) by issuing the TCGETS ioctl against it. Most likely it means that the open didn't fail. Ioctl(4, SNDCTL_TMR_TIMEBASE or TCGETS, 0xbffc14f8) = -1 ENOTTY open("/local/logs/xxx/xxxxServer.log", O_WRONLY|O_CREAT|O_APPEND|O_LARGEFILE,Ġ666) = 4 _llseek(4, 0,, SEEK_END) = 0 What does this inappropriate ioctl for device message mean?ĮDIT: This is what I found when I did strace. Shouldn't it say something like no read permissions for file or something similar? The script tries to open a file from a certain directory and it fails to read the file because file has no read permission, but I get a different error saying inappropriate ioctl for device. I have a Perl script running in an AIX box.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |