tree 2ba5cfae9bdd6ad5dd53584ba97773180effc22e
parent 0c8136a408c56b432b55ca93b5313313e8d1f585
author Patrick Williams <patrick@stwcx.xyz> 1630612939 -0500
committer Patrick Williams <patrick@stwcx.xyz> 1630667159 -0500

exception: add errno for all exceptions

sd_bus maintains an errno for all exceptions.  There are some
users of the library that are catching an SdBusError because they
want an easy way to change to an errno, but as a result they are
potentially missing exceptions.  Add the `get_errno` method into
our base exception object and return the same default that sd_bus
uses: EIO.

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I5d7610f78934c94841f99573db6adca2b5ec895c