On Thu, Feb 7, 2013 at 7:13 AM, Zbigniew Jędrzejewski-Szmek
<zbys...@in.waw.pl> wrote:
> On Wed, Feb 06, 2013 at 04:30:40PM -0800, Kok, Auke-jan H wrote:
>> On Wed, Feb 6, 2013 at 4:21 PM, Zbigniew Jędrzejewski-Szmek
>> <zbys...@in.waw.pl> wrote:
>> > current docs specify that %s means the shell of the user configured
>> > with User= or the user running systemd. However, it actually often
>> > returns /bin/sh. What is the intended behaviour?
>>
>> it should reflect the passwd entry, which by default is "/bin/sh" if
>> unset. It may also return that if using some other form of credential
>> backend - glibc provides the data.
>
> I think that this make sense. I'll update the documentation and tests to
> reflect this.
Just to clarify, here's what happens:
get_shell() is called, which in turn will:
1) check for getenv("SHELL") if set
2) return ("/bin/sh") for root to prevent nss lookups
3) check getpwuid() and return the passwd SHELL setting
on any failure in this process, "/bin/sh" is used as dummy value.
hth
Auke
>
> Zbyszek
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