mod_posix: Move everything to util.startup
This allows greater control over the order of events.
Notably, the internal ordering between daemonization, initialization of
libunbound and setup of signal handling is sensitive.
libunbound starts a separate thread for processing DNS requests.
If this thread is started before signal handling has been set up, it
will not inherit the signal handlers and instead behave as it would have
before signal handlers were set up, i.e. cause the whole process to
immediately exit.
libunbound is usually initialized on the first DNS request, usually
triggered by an outgoing s2s connection attempt.
If daemonization happens before signals have been set up, signals may
not be processed at all.
Should pass: 41 42 43 # Simple ASCII - abc
Should pass: 41 42 c3 87 # "ABÇ"
Should pass: 41 42 e1 b8 88 # "ABḈ"
Should pass: 41 42 f0 9d 9c 8d # "AB𝜍"
Should pass: F4 8F BF BF # Last valid sequence (U+10FFFF)
Should fail: F4 90 80 80 # First invalid sequence (U+110000)
Should fail: 80 81 82 83 # Invalid sequence (invalid start byte)
Should fail: C2 C3 # Invalid sequence (invalid continuation byte)
Should fail: C0 43 # Overlong sequence
Should fail: F5 80 80 80 # U+140000 (out of range)
Should fail: ED A0 80 # U+D800 (forbidden by RFC 3629)
Should fail: ED BF BF # U+DFFF (forbidden by RFC 3629)
Should pass: ED 9F BF # U+D7FF (U+D800 minus 1: allowed)
Should pass: EE 80 80 # U+E000 (U+D7FF plus 1: allowed)
Should fail: C0 # Invalid start byte
Should fail: C1 # Invalid start byte
Should fail: C2 # Incomplete sequence
Should fail: F8 88 80 80 80 # 6-byte sequence
Should pass: 7F # Last valid 1-byte sequence (U+00007F)
Should pass: DF BF # Last valid 2-byte sequence (U+0007FF)
Should pass: EF BF BF # Last valid 3-byte sequence (U+00FFFF)
Should pass: 00 # First valid 1-byte sequence (U+000000)
Should pass: C2 80 # First valid 2-byte sequence (U+000080)
Should pass: E0 A0 80 # First valid 3-byte sequence (U+000800)
Should pass: F0 90 80 80 # First valid 4-byte sequence (U+000800)
Should fail: F8 88 80 80 80 # First 5-byte sequence - invalid per RFC 3629
Should fail: FC 84 80 80 80 80 # First 6-byte sequence - invalid per RFC 3629
Should pass: EF BF BD # U+00FFFD (replacement character)
Should fail: 80 # First continuation byte
Should fail: BF # Last continuation byte
Should fail: 80 BF # 2 continuation bytes
Should fail: 80 BF 80 # 3 continuation bytes
Should fail: 80 BF 80 BF # 4 continuation bytes
Should fail: 80 BF 80 BF 80 # 5 continuation bytes
Should fail: 80 BF 80 BF 80 BF # 6 continuation bytes
Should fail: 80 BF 80 BF 80 BF 80 # 7 continuation bytes
Should fail: FE # Impossible byte
Should fail: FF # Impossible byte
Should fail: FE FE FF FF # Impossible bytes
Should fail: C0 AF # Overlong "/"
Should fail: E0 80 AF # Overlong "/"
Should fail: F0 80 80 AF # Overlong "/"
Should fail: F8 80 80 80 AF # Overlong "/"
Should fail: FC 80 80 80 80 AF # Overlong "/"
Should fail: C0 80 AF # Overlong "/" (invalid)
Should fail: C1 BF # Overlong
Should fail: E0 9F BF # Overlong
Should fail: F0 8F BF BF # Overlong
Should fail: F8 87 BF BF BF # Overlong
Should fail: FC 83 BF BF BF BF # Overlong
Should pass: EF BF BE # U+FFFE (invalid unicode, valid UTF-8)
Should pass: EF BF BF # U+FFFF (invalid unicode, valid UTF-8)