pam/go/exec: Code cleanup #822
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Codecov ReportAttention: Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## main #822 +/- ##
==========================================
- Coverage 83.43% 78.97% -4.47%
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Files 83 102 +19
Lines 8689 10414 +1725
Branches 74 75 +1
==========================================
+ Hits 7250 8224 +974
- Misses 1111 1725 +614
- Partials 328 465 +137 ☔ View full report in Codecov by Sentry. |
We may end up modifying it while calling `g_debug` so make sure we're actually using the real errno on return.
We can safely call g_connection_close multiple times on a valid connection, while we already have code handling the connection disposal in action_module_data_cleanup(). At the same time here there's no risk that we're accessing to a disposed connection in the thread, because at this point the wait-child thread is running while the action-thread is waiting for it, before disposing the connection.
Since the pointer is shared through different threads it's safer to always read and set it atomically, even if there are no races here but the API makes it more explicit.
Also no need to set the exit code in such cases, as it's just a system failure from the PAM side.
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When the child receives signals should ignore them and just return a generic PAM system error, but still we need to check that they're properly handled
Sadly some signals such as SIGABRT or SIGSEGV are handled by go and in the wrong way because it never redirects them as expected, so in such cases we just fail with a normal exit error instead of because of a signal. Reported this upstream and adding comments about. See: golang/go#72084
It's nice to increase coverage... :)
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Some random cleanups on the exec module, see commits for datails
UDENG-6256