Minor rounding error fix for the latitude and longitude strings.
This is for the FGProperties::getLongitudeString() and
FGProperties::getLatitudeString() functions. The previous algorithm was to
round the degrees up by the smallest fraction required to prevent a round up to
60 minutes or seconds, and then round down the final minutes or seconds by the
same fraction. The new algorithm is to detect if the final minute or seconds
will be rounded to 60 by the string formatting and, if so, the higher unit
(degrees or minutes) is incremented by one, and the lower unit decremented by
60.
As QApplication only stores a reference to argc, it may crash if
the argc passed to it goes out of scope. (One way to trigger this
is to pass an invalid --fg-root, triggering an initApp call from
Options::setupRoot.) Copy argc to prevent this.
Simplify fgValidatePath + minor fix (requires simgear update)
Drop fgNormalizePath, use realpath() only
As this makes it accept relative paths, always use the returned
(absolute) version for the actual file operation to avoid check-to-use
races, or where this is not possible (NasalSGPath) explicitly reject
relative paths
Fix: do_save is a write, not a read
Erik Hofman [Thu, 5 Nov 2015 14:31:52 +0000 (15:31 +0100)]
Rename EnvironmentFX to SceneFX and rethink the aircraft model specific properties: use a samping factor which applies to both volume and reference_distance and max_distance
Florent Rougon [Tue, 6 Oct 2015 10:20:54 +0000 (12:20 +0200)]
Use SGPath::realpath() on the value supplied for --aircraft-dir
* Before setting /sim/aircraft-dir from the --aircraft-dir option,
canonicalize its value with SGPath::realpath() as is already done in
FGGlobals::append_aircraft_path() for the paths given with --fg-aircraft
or via the FG_AIRCRAFT environment variable.
* This fixes a bug when --aircraft-dir is used, due to the fact that
fgValidatePath() canonicalizes its 'path' argument before matching it
against the allowed patterns, and therefore will not validate paths
under the directory specified with --aircraft-dir if this directory has
been given in a non-canonical form by the user (e.g., containing at
least one symlink component).
* This fix does not lower security: the path which is canonicalized has
been explicitely given by the user. This operation is already done for
all paths specified with --fg-aircraft or via the FG_AIRCRAFT
environment variable, via Options::initPaths() which calls
FGGlobals::append_aircraft_paths().
* To reproduce the bug, create a symlink (e.g., /tmp/aircrafts) to a
directory suitable for --fg-aircraft, then run:
Don't load resources for the current aircraft from several aircraft dirs
* If one has the same aircraft in several aircraft directories,
FlightGear should not mix resources from the various aircraft
directories. For instance, if one starts FG with:
and one has in /my/personal/dir/ec130 a clone of the upstream
developer repo, FlightGear should use either the upstream version from
/my/personal/dir/ec130 or the FGAddon version from
/path/to/fgaddon/Aircraft/ec130, but not some strange, untested hybrid
of both.
* This commit makes sure that when the looked-up resource starts with
Aircraft/<ac>, where <ac> is the current aircraft name [last component
of aircraftDir = fgGetString("/sim/aircraft-dir")], then
AircraftResourceProvider::resolve() doesn't search other aircraft
directories if the resource isn't found under 'aircraftDir'.
* To reproduce the bug before this commit, you may add the following
code (there is nothing specific about the SenecaII here, it's just the
aircraft I used for testing):
var file_path = resolvepath("Aircraft/SenecaII/flo-test");
if (file_path != "")
gui.popupTip("flo-test found", 2);
else
gui.popupTip("flo-test not found", 2);
in a keyboard binding for the SenecaII (for instance; you may use the
F11 binding that otherwise only prints a short message). You should
add this to the SenecaII/SenecaII-base.xml file *that will be loaded
by FlightGear*, let's say the one under /my/personal/dir in the
example above (beware of the <path-cache> in autosave_X_Y.xml). Then,
by creating or removing a file named "flo-test" in the SenecaII
subdirectory of other aircraft dirs (for instance,
/path/to/fgaddon/Aircraft in the example above), you can see that the
behavior of the loaded aircraft is influenced by the contents of
unrelated versions of the same aircraft that might be present in other
aircraft dirs (e.g., loaded /my/personal/dir/SenecaII influenced by
/path/to/fgaddon/Aircraft/SenecaII).
* Aircrafts loading resources using paths relative to the current
aircraft directory (e.g., with 'resolvepath("flo-test")') are not
affected by this kind of problem, because this scheme is handled by
CurrentAircraftDirProvider, which does not exhibit this bug.
Nasal: use SG_LOG for security error messages to avoid truncation
These are often too long for naRuntimeError's 128-char limit:
http://sourceforge.net/p/flightgear/mailman/flightgear-devel/thread/55B55856.2030709%40worldwideweb2.nl/#msg34319969
Torsten Dreyer [Thu, 6 Aug 2015 19:47:01 +0000 (21:47 +0200)]
Prevent 100% CPU usage for FGCom standalone
Kévin Seroux:
As reported here (http://forum.flightgear.org/viewtopic.php?f=32&t=26629),
the FGCom standalone client use 100% of the CPU when it is in OBS mode. The fact to add the shortest sleep time
(1ms) has solved the problem. With this patch, I run FGCom with 1% of CPU usage instead of 100%.
negative latitude/longitude coordinates resulted in negative WEST/
SOUTH coordinates for the default format 0 (zero).
This should be now fixed so that
+12.3 gets formatted as 12.3N/E
-12.3 gets formatted as 12.3S/W
Security: don't follow symlinks to forbidden directories
https://bugs.debian.org/780867
This messy approach is to minimise changes during freeze; for 3.7,
I plan to make realpath() handle non-existent files as "realpath
they would have if created now" and get rid of fgNormalizePath
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