Re^2: copy - Inappropriate ioctl for device

Hi,

Thank you all for the reply, i have re wrote my code, this whole code is embed in some big function, source file size is too large , may be this is the issue, (For info, this code works for small files, or make explicitly run) even after using die, or the code with strict and warnings, i am unable to get out of " Inappropriate ioctl for device ", hence closing the thread. Finally i am using this code for copying files

$ret_value=system("copy \"$source\" \"$target\"");
if($ret_value ne 0) {
               open(FAIL,">>failed_copy_$channel");
    print FAIL"FAILED TO Copy \"$target\" WITH FROM \"$target_input_fi
+le\" +....\n";
close(FAIL);
}
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This works fine if used explicitly or used inside any program, or used to copy large files (more than 1MB also)

Thank you all for your support,
ShekarKCB

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Re^3: copy - Inappropriate ioctl for device by Anonymous Monk on Feb 12, 2009 at 08:13 UTC
...strict and warnings, i am unable to get out of " Inappropriate ioctl for device "... Your mistake was checking $! when you weren't supposed to. Do not use $! to determine if a failure occured. perlvar says *the value of $! is meaningful only immediately* after a failure**: `if (open(FH, $filename)) { # Here $! is meaningless. ... } else { # ONLY here is $! meaningful. ... # Already here $! might be meaningless. } # Since here we might have either success or failure, # here $! is meaningless.` [download]	[reply] [d/l]

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Re^3: copy - Inappropriate ioctl for device
by Anonymous Monk on Feb 12, 2009 at 08:13 UTC

...strict and warnings, i am unable to get out of " Inappropriate ioctl for device "...

Do not use $! to determine if a failure occured.

perlvar says the value of $! is meaningful only immediately after a failure:


    if (open(FH, $filename)) {
    # Here $! is meaningless.
    ...
    } else {
    # ONLY here is $! meaningful.
    ...
    # Already here $! might be meaningless.
    }
    # Since here we might have either success or failure,
    # here $! is meaningless.
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