arch: fix incorrect architecture name in `arch.Endian()`
The go and Debian/Ubuntu architecture names are extremly close and there was a typo in one of them (i386->386). In addition to fixing the typo this commit also includes a list of known architectures from the go source directly to ensure this change is correct.
There is no exported list of available architectures so it had to be copied. There is `go tool dist list` which will list all supported combinations of os/arch but the downside of using this is that when architecture support gets dropped in the future the test would start failing for no good reason.
arch: add new `arch.Endian()` helper and use it in seccomp (#13028)
* arch: add new `arch.Endian()` helper and use it in seccomp
Go has no good way to get the native endianness of a system. However for certain use-cases (like seccomp) this is quite important. We already have a (hackish) `isBigEndian()` helper in our code. However this will also be needed in snap-seccomp for PR#13014 this will also be needed so moving the helper to the `arch` package seems to be prudent.
* arch: fix usage of runtimeGOARCH
Co-authored-by: Miguel Pires <email address hidden>
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Co-authored-by: Miguel Pires <email address hidden>
* Squashed 'tests/lib/external/snapd-testing-tools/' changes from 1c8efb77e1..8013c30c2a
8013c30c2a Remove support for ubuntu 22.10 b32b80bf54 Fix remote.rait-for test in bionic 5675c625e9 Enable fedora 38 55f4471957 Support for new oss f2e88b357c New tool used to query spread json reports cacd35ede0 utils/spread-shellcheck: explain disabled warnings (#42) c82afb2dee Support --no-install-recommends parameter when installing dependencies with tests.pkgs b84eea92e2 spread-shellcheck: fix quotes in environment variables (#41) ab1e51c29f New comparison in os-query for core systems (#40) e5ae22a5d4 systemd units can be overwritten 63540b845a Fix error messages in remote pull and push 75e8a426a5 make sure the unit is removed in tests.systemd test 9089ff5c02 Update tests to use the new tests.systemd stop-unit 44ecd5e56a Move tests.systemd stop-units to stop-unit 01a2a83b4b Update tests.systemd to have stop units as systemd.sh 162e93bd35 update tests.systemd CLI options to be the same than retry command 14aa43a405 new feature to re-run failed spread tests (#39) 604cb782db Fix shellcheck in systemd tool bfc71082c8 Update the tests.systemd to allow parameters waiting for service status 8a2d0a99df Adding quiet tool and removing set +-x from tests.pkgs d90935d2a4 A comment explaining about the default values for wait-for 3232c5dba7 Add support for ubuntu 23.04 a7164fba07 remove fedora 35 support, add fedora 37 support 89b9eb5301 Update systems supported 92bb6a0664 Include snap-sufix in the snaps.name tool
The readlink() call does not add a terminating \0. Because orig_cwd is not initialized this can lead to silent corruption (as was observed in PR#13014.
Merge the FieldNotFound and AspectNotFound errors so the user-facing error messages returned by the API are consistent in wording and in the information they provide.
