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the integer division instructions are emulated with _div()
function patched in by 5l which does not handle conditional
execution. so do not optimize away the branch in that case.
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richard millers devether-doublefree patch)
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memory in HELP command
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specifing -d on the command line now only disables synchronous
drawing events.
- use threaded mouse and keyboard to allow for asynchronous
receoption of quit messages. this allows plot to exit before drawing
is completed. for programs like mapdemo, this is important.
there were two things that needed to get fixed as a result
- replace fprint(2, ...); exits("bad"); with sysfatal. also get rid
of stdio.
- dpoint needed a mach-dependentent (sic) version. otherwise
points on a resized screen will not be properly placed.
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typo in error case, should qunlock() instead of qlock().
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connection
Charles Forsyth described the problem below in:
http://9fans.net/archive/2013/04/190
In a few cases, the kernel will use pprint to put a diagnostic on the
standard error (file descriptor 2). One of those is a warning that the
process has used more than 100 file descriptors. That message is possibly
obsolete and could be removed, but there are others, such as notifying an
uncaught trap that are probably helpful to make visible. In any case, as
things stand, a busy exportfs might have many file descriptors open,
provoking the diagnostic. Unfortunately, aux/listen and aux/listen1 connect
file descriptor 2 to the incoming network connection. If the connection's
protocol is not a simple, unstructured, textual one, diagnostics on the
standard error will cause confusion, in particular to devmnt.c if 9p is used.
/rc/bin/service files that start applications that run special protocols
might want to redirect file descriptor 2; alternatively, perhaps aux/listen
shouldn't redirect fd 2 by default: the few commands that do connect the remote
user to shells, or equivalent, including telnetd and sshd could dup 1 to 2
when that was sensible.
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the software cursor starts flickering and reacts bumby if a process
spends most of its time with drawlock acquired because the timer interrupt
thats supposed to redraw the cursor fails to acquire the lock at the time
the timer fires.
instead of trying to draw the cursor on the screen from a timer interrupt
30 times per second, devmouse now creates a process calling cursoron() and
cursoroff() when the cursor needs to be redrawn. this allows the swcursor
to schedule a redraw while holding the drawlock in swcursoravoid() and
cursoron()/cursoroff() are now able to wait for a qlock (drawlock) because
they get called from process context.
the overall responsiveness is also improved with this change as the cursor
redraw rate isnt limited to 30 times a second anymore.
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from ehci spec:
The buffer pointer list in the qTD is long enough to support a maximum
transfer size of 20K bytes. This case occurs when all five buffer pointers
are used and the first offset is zero. A qTD handles a 16Kbyte buffer
with any starting buffer alignment.
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overriding aborttime in udpquery() makes no sense. it causes
recursive queries to extend the timeout infinitely. nobody
but the issuer of the request should modify aborttime.
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instead of an "i/o count too small", detect a missing capability (empty, null string)
before the write, and diagnose it as such.
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Remove a warning in 9nfs and make it use the std. CFLAGS
(we detected the warning using -W).
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and backspace to delete spaces until the previous tabstop
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initialized and disable checksum offload for igbe (from sources)
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addresses like: "1:2:3:4:5:6:7:255.255.255.255" caused parseip
to write beyond the ip buffer.
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*alen has to be initialized to the size of the buffer
by the caller, and we are supposed to put the real
size of the address in there, but not copy more than
the original *alen value (truncate).
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getaddrinfo(), ipv6 and fix EISCON typo in ape
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update some names according to OpenBSD's driver (previously added device, 0x10c0, is also from OpenBSD's driver).
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cleanup wifiencrypt()/wifidecrypt() routines moving tkip
and ccmp in separate routines so we dont use less stack
space.
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in wpa2, the rsc field of the eapol message3 is the packet number for
*group* messages that the ap will use as there is no separate group
key message. in wpa1, we use it for the peerwise key.
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do the xoring word wise for 16-byte block instead
of doing it bytewise in a loop.
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