URL: https://github.com/SSSD/sssd/pull/5827
Title: #5827: A number of fixes around `strto*()` usage
alexey-tikhonov commented:
"""
> There are few more places where `strtouint*()` is called with 2nd parameter
> set to NULL:
I don't have very strong justification but will try my best to explain why I
missed those.
> src/sbus/sbus_errors.c
>
> 74: ret = strtouint32(error->message, NULL, 10);
This is a case `dbus_error_has_name(error, SBUS_ERROR_ERRNO)`, i.e. (IIUC)
`error->message` is set by another SSSD process, i.e. can be treated as a more
or less "safe" source.
But imagine we want to be prudent and catch a case "123abc". How are we going
to handle this?
This is a helper function that translates `error` to error code. So instead of
`123` in this case of malformed error text we can return, for example,
`ERR_INTERNAL`. Does it make some sense? Perhaps. Much sense? Imo, no.
> src/responder/kcm/kcmsrv_ccache_secdb.c
>
> 846: uid = strtouint32(uid_list[i], NULL, 10);
`uid_list` originates from sssd-kcm ccache DB, so again, more or less reliable.
> src/tests/cwrap/test_server.c
>
> 79: tmp = strtouint32(buf, NULL, 10);
>
That's a test.
> src/providers/ldap/ldap_id_services.c
>
> 266: port = strtouint16(state->name, NULL, 10);
>
Again, internal stuff. But ok, to be consistent I will add checks here...
>
>
> src/providers/ldap/sdap_access.c
>
> 1859: duration = strtouint32(pwdAccountLockedDurationTime, NULL,
> 0);
This value is from LDAP - "pwdLockoutDuration" . I just wasn't sure what weird
format it might have...
But it looks https://ldapwiki.com/wiki/PwdLockoutDuration says "Integer" so ok,
I will update this as well.
> ```
>
> If those are outside of the scope of this PR?
"""
See the full comment at
https://github.com/SSSD/sssd/pull/5827#issuecomment-946114494
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