The functions mappedGeometryRef and mappedGeometryUnref are API
functions ([1]) but were implemented in the geometry channel.
In case FreeRDP was built with BUILTIN_CHANNELS=OFF those functions
weren't available globally but used by the video channel.
Now the functions are fixed part of the freerdp-client library and
therefore available for all channels.
[1] exported in freerdp/client/geometry.h
Fixes#6236
Currently, this sets an invalid open flag and attempts to open(), which
will fail. Instead of doing that, don't try to define O_TMPFILE where
such a definition can't exist and force the fallback rather than making
an always-fail open() call.
This tries to fixes the following defects reported by covscan tool:
- channels/smartcard/client/smartcard_operations.c:958: uninit_use_in_call: Using uninitialized value "ret.cReaders" when calling "smartcard_pack_locate_cards_return".
- channels/smartcard/client/smartcard_operations.c:932: uninit_use_in_call: Using uninitialized value "ret.cReaders" when calling "smartcard_pack_locate_cards_return".
But I am not sure about it...
This fixes the following defect reported by covscan tool:
- channels/smartcard/client/smartcard_pack.c:942: uninit_use_in_call: Using uninitialized value "tmp" when calling "ConvertFromUnicode".
- channels/smartcard/client/smartcard_pack.c:894: uninit_use_in_call: Using uninitialized value "tmp" when calling "ConvertFromUnicode".
- channels/smartcard/client/smartcard_pack.c:475: uninit_use_in_call: Using uninitialized value "tmp" when calling "ConvertFromUnicode".
This fixes the following defects reported by covscan tool:
- client/Wayland/wlf_input.c:251: overrun-local: Overrunning array "contacts" of 10 32-byte elements at element index 10 (byte offset 351) using index "i" (which evaluates to 10).
- client/Wayland/wlf_input.c:308: overrun-local: Overrunning array "contacts" of 10 32-byte elements at element index 10 (byte offset 351) using index "i" (which evaluates to 10).
- client/Wayland/wlf_input.c:360: overrun-local: Overrunning array "contacts" of 10 32-byte elements at element index 10 (byte offset 351) using index "i" (which evaluates to 10).
- client/Wayland/wlf_input.c:251: error[arrayIndexOutOfBounds]: Array 'contacts[10]' accessed at index 10, which is out of bounds.
- client/Wayland/wlf_input.c:308: error[arrayIndexOutOfBounds]: Array 'contacts[10]' accessed at index 10, which is out of bounds.
- client/Wayland/wlf_input.c:360: error[arrayIndexOutOfBounds]: Array 'contacts[10]' accessed at index 10, which is out of bounds.
- client/Wayland/wlf_input.c:246: uninit_use_in_call: Using uninitialized value "y" when calling "wlf_scale_coordinates".
- client/Wayland/wlf_input.c:246: uninit_use_in_call: Using uninitialized value "x" when calling "wlf_scale_coordinates".
The maximal number of touches can be higher then 10, see:
https://wayland.freedesktop.org/libinput/doc/latest/touchpads.html
Let's increse the MAX_CONTACTS count and add checks to prevent usage of
uninitialized values.
LoadLibraryA implementation uses the RTLD_LOCAL flag for dlopen currently.
This flag doesn't allow the symbols to be used by the subsequently loaded
libraries. This is a problem for the video channel when -DBUILTIN_CHANNELS=OFF
is used as it uses functions from the geometry channel. Let's use RTLD_GLOBAL
instead to prevent "undefined symbol" errors in such cases.
Fixes: https://github.com/FreeRDP/FreeRDP/issues/6236
