[Bug 4616] New: dd: invalid number when too big

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=4616

           Summary: dd: invalid number when too big
           Product: Busybox
           Version: unspecified
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: minor
          Priority: P5
         Component: Standard Compliance
        AssignedTo: unassigned at busybox.net
        ReportedBy: mikolaj at kucharski.name
                CC: busybox-cvs at busybox.net
   Estimated Hours: 0.0


This is a report for busybox in RHEL 5.7 installer. As I think the issue is
more related to busybox than RHELs installer, I'm reporting it here.


Sorry I don't have access to newer version of busybox, to check does the issue
exist in newer versions.


When I supply to big number dd(1) command fails with error 'invalid number'
however it doesn't happen to dd(1) version from coreutils.



-sh-3.2# grep -e 'sda$' /proc/partitions
   8     0   35566479 sda

-sh-3.2# dd --help
BusyBox v1.2.0 (2011.07.22-08:19+0000) multi-call binary


-sh-3.2# dd if=/dev/zero of=/dev/sda seek=36411452416 count=8622592 bs=1
dd: invalid number `36411452416'



I did some testing here, but not sure at what number exactly it fails:



-sh-3.2# dd if=/dev/zero of=/dev/sda seek=5000000000 count=0 bs=1
dd: invalid number `5000000000'
-sh-3.2# dd if=/dev/zero of=/dev/sda seek=4000000000 count=0 bs=1
0+0 records in
0+0 records out
-sh-3.2#

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