* Unify/Modernize TOS to DSCP standards
The set of pre-named TOS values are now renamed to the latest DSCP
standards, with traffic classes and everything exciting. To keep
everything in the same place, a segment has been added to net.h to keep
the currently named values.
A result of these changes is that "lowcost" is probably no longer
harmless, as it now encourages the router to preferentially drop the
packages when bandwidth requires so. "lowdelay" is assigned to a pretty
high AF class for SIP and stuff. I am not sure at all about the
"throughput" assignment. I mean, the whole point of DSCP-fication is
translating from the old ToS bits to a more precedence-based notation,
and precedence is supposed to lie beside the old 4 ToS bits...
A funny interaction between the AFxy and the old ToS fields lies in
the old "reliability" (0x08) field. All odd numbers of y (1, 3 : low,
high) switches it on. If you spend 5 more minutes on it you can probably
come up with "pun" values that hold similar meanings in DSCP and
Prec/ToS.
By removing the IPv6 override, I should have kind of satisfied the #692
request.
Fixes: #692
This way all the qualifiers (`const`, `volatile`, `mutable`) are grouped
together, e.g. `T const* const x` vs. `const T* const x`. Also helps reading
types right-to-left, e.g. "constant pointer to constant T" vs. "constant
pointer to T which is constant".
There're places where manual intervention is still required as uncrustify
is not ideal (unfortunately), but at least one may rely on it to do the
right thing most of the time (e.g. when sending in a patch).
The style itself is quite different from what we had before but making it
uniform across all the codebase is the key. I also hope that it'll make the
code more readable (YMMV) and less sensitive to further changes.
Test socket validity by comparing to TR_BAD_SOCKET instead of various
(and sometimes wrong) other tests like `x >= 0`, `x != -1`, `x > 0`,
`x > -1`, `x` (valid), and `x < 0`, `x == -1` (invalid).
This should not affect non-Win32 platforms in any way.
As for Win32 (both MinGW and MSVC), this should hopefully allow for
unpatched compilation. Correct functioning is not yet guaranteed though.
I'm less certain that these are unneeded because networking APIs seem to have more variation between platforms, but it's better to remove the cruft and then add back whatever headers $PLATFORM users complain about, than to not remove the cruft at all...
We currently implement our own versions of these on mingw because that platform doesn't have them... but why reinvent the wheel; libevent has already done the same thing. Let's use libevent2's implementation.
has already done it for us.
This handles converting the data in a sockaddr_storage to a tr_address + port, and removes redundant code from fdlimit.c and tr-udp.c that previously did this work.
The Berne Convention says that the copyright year is moot, so instead of adding another year to each file as in previous years, I've removed the year altogether from the source code comments in libtransmission, gtk, qt, utils, daemon, and cli.
Juliusz's copyright notice in tr-dht and Johannes' copyright notice in tr-lpd have been left alone; it didn't seem appropriate to modify them.
Mike Gelfand