[Bug 860] New: Bizarre "cannot use" error inconsistent with command line

[bugzilla-daemon at netfilter.org]

https://bugzilla.netfilter.org/show_bug.cgi?id=860

           Summary: Bizarre "cannot use" error inconsistent with command
                    line
           Product: iptables
           Version: 1.4.x
          Platform: arm
        OS/Version: other
            Status: NEW
          Severity: normal
          Priority: P5
         Component: iptables
        AssignedTo: netfilter-buglog at lists.netfilter.org
        ReportedBy: eric.bock.1980 at gmail.com
   Estimated Hours: 1.0


iptables 1.4.11.1 (sometimes installed by Android) and iptables 1.4.10
(sometimes installed by third parties) produce nonsensical usage errors for
some dubious command lines:

iptables --list -L
iptables v1.4.11.1: Cannot use -L with -L
iptables --list-rules -S
iptables v1.4.11.1: Cannot use -E with -E
iptables --flush -F
iptables v1.4.11.1: Cannot use -F with -F
iptables --zero -Z
iptables v1.4.11.1: Cannot use -Z with -Z
iptables --new -N
iptables v1.4.11.1: chain name not allowed to start with `-'
iptables --policy -P
iptables v1.4.11.1: -X requires a chain and a policy

Note the difference between the arguments and the error for --list-rules and
--policy.  Also, reactions to -E vary in spacing and relevance:

[ 2 ] app_42 at android:/$ iptables -E a
iptables v1.4.11.1: -P requires old-chain-name and new-chain-name
Try `iptables -h' or 'iptables --help' for more information.
[ 2 ] app_42 at android:/$ iptables -E a b -E
iptables v1.4.11.1: option "-E" requires an argument
Try `iptables -h' or 'iptables --help' for more information.
[ 2 ] app_42 at android:/$ iptables -E a b -E b
iptables v1.4.11.1: Cannot use -P with -P

Try `iptables -h' or 'iptables --help' for more information.
[ 2 ] app_42 at android:/$ iptables -E a b -E b c
iptables v1.4.11.1: Cannot use -P with -P

Try `iptables -h' or 'iptables --help' for more information.

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