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Wireshark-bugs: [Wireshark-bugs] [Bug 6526] Wireshark installer doesn't add access_bpf in 10.5.8

Date: Fri, 16 Mar 2012 18:23:53 -0700 (PDT)
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=6526

Martin Williams <mrwlists@xxxxxxxxx> changed:

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--- Comment #9 from Martin Williams <mrwlists@xxxxxxxxx> 2012-03-16 18:23:52 PDT ---
(In reply to comment #6)
> OK, so we can't use "dseditgroup read" to check whether a group exists on
> Leopard.

But you might use "dscl . -read /Groups/...." to do the same job. This *does*
return an error code if the group does not exist, unlike "dseditgroup read".

In the post install script, replacing:

dseditgroup -q -o read "$BPF_GROUP" > /dev/null 2>&1 || \
    dseditgroup -q -o create "$BPF_GROUP"

with:

dscl . -read /Groups/"$BPF_GROUP" > /dev/null 2>&1 || \
    dseditgroup -q -o create "$BPF_GROUP"


works on my Leopard 10.5.8 PPC system.


I took that snippet from:

Apple's Shell Scripting Primer Appendix C
Listing C-11  Script for adding a new group using dscl (addgroup.sh)

https://developer.apple.com/library/mac/documentation/OpenSource/Conceptual/ShellScripting/ShellScripting.pdf


An additional point - I am not clear whether the installer scripts should be
'postinstall', or 'postupgrade', or even both !

Certainly I needed the script to be a 'postupgrade' script to have it run when
I reinstalled the package. In that circumstance a 'postinstall' script does
not seem to run.

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