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This required for successful linking of libXrender against libNX_X11.
Port from libXfixes commit b031e3b60fa1af9e49449f23d4a84395868be3ab We
need this here to enable linking of current libXrender against
libNX_X11 instead of the system's libX11
The original implementation of this function (libX11 commit
9f5d83706543696fc944c1835a403938c06f2cc5) uses xcb stuff which we do
not have in libNX_X11. So we take a workaround from another lib. This
workaround had been added temporarily to a couple of X extension libs,
see
e.g. https://lists.x.org/archives/xorg-devel/2013-July/036763.html.
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To enable linking of a current libXrender libNX_X11 needs that symbol.
This is a (manual) backport of the following upstream libX11 commit
available at
https://cgit.freedesktop.org/xorg/lib/libX11/commit/src/XlibInt.c?id=4a060f993bf676cf21ad9784e010f54134da7b40:
Commit: 4a060f993bf676cf21ad9784e010f54134da7b40
Author: Peter Hutterer <peter.hutterer@who-t.net>
Date: Mon, 17 Oct 2011 09:45:15 +1000
Subject: Add _XGetRequest as substitute for GetReq/GetReqExtra
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with system-wide shared libraries.
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In the process of building nxagent against more and more system-wide installed
X.org libraries, we come to the limit of including structs from this (bundled
nx-X11) and that (system-wide X.Org) library.
This commit introduces a clear namespace separation of headers provided by
nx-X11 and headers provided by X.Org. This approach is only temporary as we
want to drop all nx-X11 bundled libraries from nx-libs.
However, for a while we need to make this separation clear and also ship
some reduced fake X.Org headers that avoid pulling in libX* and libNX_X*
symbols at the same time.
This patch has been tested on Debian jessie and unstable and requires no
overall testing on various distros and distro versions, as we finally will
drop all libNX_X* libraries and build against X.org's client libs.
For now, this hack eases our development / cleanup process.
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CVE-2013-7439).
MakeBigReq inserts a length field after the first 4 bytes of the request
(after req->length), pushing everything else back by 4 bytes.
The current memmove moves everything but the first 4 bytes back. If a
request aligns to the end of the buffer pointer when MakeBigReq is
invoked for that request, this runs over the buffer. Instead, we need to
memmove minus the first 4 bytes (which aren't moved), minus the last 4
bytes (so we still align to the previous tail).
The 4 bytes that fell out are already handled with Data32, which will
handle the buffermax correctly.
The case where req->length = 1 was already not functional.
Reported by Abhishek Arya <inferno@chromium.org> (against X.Org BTS).
https://bugzilla.mozilla.org/show_bug.cgi?id=803762
Reviewed-by: Jeff Muizelaar <jmuizelaar@mozilla.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Rebased-for-NX: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>
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WORD64, WORD64ALIGN, MUSTCOPY, UNSIGNEDBITFIELDS definitions).
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Summary: Imported nx-X11-3.5.0-1.tar.gz
Keywords:
Imported nx-X11-3.5.0-1.tar.gz
into Git repository
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Summary: Imported nx-X11-3.4.0-3.tar.gz
Keywords:
Imported nx-X11-3.4.0-3.tar.gz
into Git repository
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Summary: Imported nx-X11-3.4.0-1.tar.gz
Keywords:
Imported nx-X11-3.4.0-1.tar.gz
into Git repository
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Summary: Imported nx-X11-3.1.0-1.tar.gz
Keywords:
Imported nx-X11-3.1.0-1.tar.gz
into Git repository
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