Run shell script -- doesn't seems to take effect

Question

So I have a need to modify the Xoom tablet iptables rules and I created a shell script to do that, and it works if I run it directly from the shell but doesn't seems to work if I have an (Java) activity run it.

I must be missing something, can you guys give me some clue?

It could be a permissions issue. I'm not sure what user the Activity would run as, however I image that user would need execute permissions to run commands in the shell? — Justin Shield, Jul 18 '11 at 03:17

score 1 · Answer 1 · edited May 23 '17 at 11:55

1

adb shell has root permissions, whereas Java doesn't.

in adb:

# id
uid=0(root) gid=0(root)

You can get your user id in Java to see what you're running as.

If you have access to the OS build, then you can raise your application level to system, but that still won't give you root. Here's an SO post on that if you're interested.

edited May 23 '17 at 11:55

Community

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answered Jul 18 '11 at 03:21

Ravi

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hmm, what can I do to run system level privilege program like iptables? – Teo Choong Ping Jul 20 '11 at 01:12

Run shell script -- doesn't seems to take effect

1 Answers1