No-one ever did anything with this variable except assign its default
value to it.
Signed-off-by: Daniel Stone <daniel@fooishbar.org>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
If failing to disable a protocol specified by -nolisten failed, we'd
throw a FatalError and bomb startup entirely. From poking at xtrans, it
looks like the only way we can get a failure here is because we've
specified a protocol name which doesn't exist, which probably doesn't
constitute a security risk.
And it makes it possible to start gdm even though you've built with
--disable-tcp-transport.
Signed-off-by: Daniel Stone <daniel@fooishbar.org>
Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
Adds new function padding_for_int32() and uses existing pad_to_int32()
depending on required results.
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Tested-by: Daniel Stone <daniel@fooishbar.org>
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Tested-by: Daniel Stone <daniel@fooishbar.org>
Clear them out when needed instead of leaving whatever values were
present in previously sent messages.
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Tested-by: Daniel Stone <daniel@fooishbar.org>
Each DDX currently calls OsReleaseSIGIO in case it was suspended when
the server regen started. This causes a BUG to occur if SIGIO was
*not* blocked at that time. Instead of relying on each DDX, make the
OS layer reliably reset all signal state at server init time, ensuring
that signals are suitably unblocked and that the various signal state
counting variables are set back to zero.
Signed-off-by: Keith Packard <keithp@keithp.com>
Let the dix be in charge of changing the sigprocmask so we only have one
entity that changes it.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
This merge includes a minor fixup for '%p' arguments; must cast to
uintptr_t instead of uint64_t as we use -Werror=pointer-to-int-cast
which complains when doing a cast (even explicitly) from a pointer
to an integer of different size.
While we probably don't need to be signal safe here since we will never
return to the normal context, the logging signal context check will
cause unsafe logging to be unhandled. Using signal safe logging here
resolves the issue.
Signed-off-by: Chase Douglas <chase.douglas@canonical.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Also, print out the offending message format. This will hopefully help
developers track down unsafe logging.
Signed-off-by: Chase Douglas <chase.douglas@canonical.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Backtraces are often printed in signal context, such as when a segfault
occurs.
Signed-off-by: Chase Douglas <chase.douglas@canonical.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
os: print offset as unsigned int, not long unsigned int
pnprintf() takes unsigned int for %u
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
ErrorF() is not signal safe. Use ErrorSigSafe() whenever an error
message may be logged in signal context.
[whot: edited to "ErrorFSigSafe"]
Signed-off-by: Chase Douglas <chase.douglas@canonical.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
[whot: edited to use varargs, squashed commit below]
Signed-off-by: Chase Douglas <chase.douglas@canonical.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
os: fix vararg length calculation
Make %u and %x sizeof(unsigned int), %p sizeof(void*). This is printf
behaviour and we can't guarantee that void* is uint64_t anyway.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Chase Douglas <chase.douglas@canonical.com>
Much easier for scripts that try to read the display value off the file
descriptor. Plus, this restores the behaviour we had for this patch in
Fedora since server 1.6 (April 2009).
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Chase Douglas <chase.douglas@canonical.com>
Signed-off-by: Chase Douglas <chase.douglas@canonical.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
None of the FILE based functions are signal safe, including fileno(), so
we need to save the file descriptor for when we are in signal context.
Signed-off-by: Chase Douglas <chase.douglas@canonical.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This will be used for checking for proper logging when in signal
context.
Signed-off-by: Chase Douglas <chase.douglas@canonical.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Both Cygwin and MinGW can use Windows' native CryptoAPI for SHA1,
saving a dependency on libgcrypt or OpenSSL. The necessary functions
are in ADVAPI32.DLL, which is among the default lib flags and is
already used in hw/xwin for accessing the registry.
Signed-off-by: Yaakov Selkowitz <yselkowitz@users.sourceforge.net>
Reviewed-by: Mikhail Gusarov <dottedmag@dottedmag.net>
Reviewed-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Colin Harrison <colin.harrison@virgin.net>
Tested-by: Colin Harrison <colin.harrison@virgin.net>
It is not safe to ever use an arbitrary (possibly user supplied) string as
part of the format for a *sprintf() call.
For example:
1. Name a Bluetooth keyboard "%n%n%n%n%n%n%n%n"
2. Pair it with a computer running X and try to use it
3. X is not happy when trying to do the following in xf86-input-evdev:
xf86IDrvMsg(pInfo, X_CONFIG, "Device: \"%s\"\n", device);
because LogVHdrMessageVerb() has put the %n from the device name
into a format string of the form:
"evdev: %n%n%n%n%n%n%n%n: Device: \"%s\"\n"
Instead, build up a log message in place by appending successive formatted
strings by sncprintf'ing to the end of the previous.
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
The current code will write a timestamps into the logFile whenever
the last message ended with a '\n' - even if the verb for that timestamp
is at too high a level. This timestamp will sit there with no matching
message until the next call to LogVWrite with a valid verb.
In other words, in some cases, timestamps in the X.org.log are for some
completely unrelated message that was previously ignored due to
insufficient verbosity, and not for the message that appears next to it
in the log file.
We keep the current policy which appears to be to only apply timestamps if
a message is actually written to a log file. That is, no timestamps on
stderr, or in the mem buffer. Therefore, the timestamp stringification
is moved to the conditional where it is used.
Since logging uses a fixed length buffer, this patch also forces a '\n'
whenever a buffer is terminated due to a too-long write request. This
allows the newline detection to work even on overflow, and also cleans up
the log a bit in the overflow case.
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Normal snprintf() usually returns the number of bytes that would have been
written into a buffer had the buffer been long enough.
The scnprintf() variants return the actual number of bytes written,
excluding the trailing '\0'.
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
* space->tab
* remove comment that doesn't make any sense
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
If TimerSet() is called from a signal handler (synaptics tap handling code)
may result in list corruption if we're currently inside TimerSet().
See backtrace in
https://bugzilla.redhat.com/show_bug.cgi?id=814869
Block signals for all list manipulations in the timers.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Chase Douglas <chase.douglas@canonical.com>
This option specifies a file descriptor in the launching process. X
will scan for an available display number and write that number back to
the launching process, at the same time as SIGUSR1 generation. This
means display managers don't need to guess at available display numbers.
As a consequence, if X fails to start when using -displayfd, it's not
because the display was in use, so there's no point in retrying the X
launch on a higher display number.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Chase Douglas <chase.douglas@canonical.com>
Reviewed-by: Julien Cristau <jcristau@debian.org>
Tested-by: Julien Cristau <jcristau@debian.org>
Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Preparation work for per-device idle counters.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Jeremy Huddleston <jeremyhu@apple.com>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: James Jones <jajones@nvidia.com>
This is strictly the application of the script 'x-indent-all.sh'
from util/modular. Compared to the patch that Daniel posted in
January, I've added a few indent flags:
-bap
-psl
-T PrivatePtr
-T pmWait
-T _XFUNCPROTOBEGIN
-T _XFUNCPROTOEND
-T _X_EXPORT
The typedefs were needed to make the output of sdksyms.sh match the
previous output, otherwise, the code is formatted badly enough that
sdksyms.sh generates incorrect output.
The generated code was compared with the previous version and found to
be essentially identical -- "assert" line numbers and BUILD_TIME were
the only differences found.
The comparison was done with this script:
dir1=$1
dir2=$2
for dir in $dir1 $dir2; do
(cd $dir && find . -name '*.o' | while read file; do
dir=`dirname $file`
base=`basename $file .o`
dump=$dir/$base.dump
objdump -d $file > $dump
done)
done
find $dir1 -name '*.dump' | while read dump; do
otherdump=`echo $dump | sed "s;$dir1;$dir2;"`
diff -u $dump $otherdump
done
Signed-off-by: Keith Packard <keithp@keithp.com>
Acked-by: Daniel Stone <daniel@fooishbar.org>
Acked-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Changes to output:
* "Backtrace:" now appears on a separate line _with_ a timestamp
* A blank line is inserted after the last backtrace line
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Julien Cristau <jcristau@debian.org>
Uses kvm_getargv() from libkvm.
Signed-off-by: Matthieu Herrb <matthieu.herrb@laas.fr>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
Move some constants near their only users, and remove some
getdtablesize() logic that's second-guessing configure.
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Signed-off-by: Adam Jackson <ajax@redhat.com>
Forwarding proxies like sshd will appear to be local, even though they
aren't really. This leads to weird behaviour for extensions that truly
require running under the same OS services as the client, like MIT-SHM
and DRI2.
Add two new legal values for the initial connection's byteOrder field,
'r' and 'R'. These act like 'l' and 'B' respectively, but have the side
effect of forcing the client to be treated as non-local. Forwarding
proxies should attempt to munge the first packet of the connection
accordingly; older servers will reject connections thusly munged, so the
proxy should fall back to passthrough if the munged connection attempt
fails.
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Signed-off-by: Adam Jackson <ajax@redhat.com>
If dladdr returns 0, don't go and use the returned Dl_info, it may
contain garbage.
X.Org bug#44315 <https://bugs.freedesktop.org/show_bug.cgi?id=44315>
Reported-and-tested-by: Cyril Brulebois <kibi@debian.org>
Reviewed-by: Jeremy Huddleston <jeremyhu@apple.com>
Reviewed-by: Cyril Brulebois <kibi@debian.org>
Signed-off-by: Julien Cristau <jcristau@debian.org>
Uses /proc/pid/psinfo to read command & partial arguments.
Moves cmdsize & argsize variables into non-Solaris #else clause
to avoid unused variable warnings.
Fixes format mismatch errors when building with DEBUG defined on
a 64-bit platform (where Mask is defined as CARD32).
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Rami Ylimäki <rami.ylimaki@vincit.fi>
Signed-off-by: Keith Packard <keithp@keithp.com>
xdmcp.c:63:36: warning: initialization discards qualifiers from pointer target type
xdmcp.c: In function 'XdmcpRegisterConnection':
xdmcp.c:482:8: warning: cast discards qualifiers from pointer target type
xdmcp.c:482:8: warning: cast discards qualifiers from pointer target type
xdmcp.c:482:8: warning: cast discards qualifiers from pointer target type
xdmcp.c: In function 'get_mcast_options':
xdmcp.c:1596:21: warning: initialization discards qualifiers from pointer target type
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
And instead of initializing to NULL, then resetting to LOCKDIR almost
immediately (before ever using the NULL value), skip directly to setting
it to LOCKDIR.
tmppath variable is only used as input for generating the path name
via calls to strlen, sprintf, etc.
Fixes gcc warning of:
utils.c: In function 'LockServer':
utils.c:259:11: warning: assignment discards qualifiers from pointer target type
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
