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Alan Coopersmith 169805e1dc Fix validation of ctrls parameter to XkbGetPerClientControls() 
Nothing in the XKB spec states that the memory pointed to by ctrls has to
be initialized to any given value when passed to the function, only that
it is set by the function to the values returned by the X server:
http://www.x.org/releases/X11R7.7/doc/libX11/XKB/xkblib.html#The_Miscellaneous_Per_client_Controls

The check for the incoming value seems to be copied from
XkbSetPerClientControls without explanation.

Instead change it to checking if ctrls is non-NULL, since there's no
point asking the X server to return a value the caller won't even see.

Found while investigating report from cppcheck-1.65:
[src/xkb/XKB.c:699] -> [src/xkb/XKB.c:719]: (warning) Possible null pointer
 dereference: ctrls - otherwise it is redundant to check it against null.

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
2014-07-18 22:56:23 -07:00
include unifdef -UISC 2013-12-02 21:51:27 -08:00
m4 Revert “Dolt-ify" 2010-09-13 05:27:41 -04:00
man Add missing .TE tags to end tables in Xkb man pages 2014-05-20 21:30:57 -07:00
modules lcDefConv.c: fix use before check 2014-07-06 10:12:20 -07:00
nls Start adding Unicode 7.0 support to compose table 2014-06-18 22:03:13 -07:00
specs specs/libX11: Add missing spaces to 'unsignedint' & 'unsignedlong' types 2014-07-06 15:59:19 -07:00
src Fix validation of ctrls parameter to XkbGetPerClientControls() 2014-07-18 22:56:23 -07:00
.gitignore .gitignore: use common defaults with custom section # 24239 2009-11-14 09:26:16 -05:00
AUTHORS libX11 1.5.0 2012-06-01 23:37:09 -07:00
autogen.sh autogen.sh: Implement GNOME Build API 2013-01-15 14:32:12 -05:00
configure.ac Drop X_LOCALE fallback for OS'es without setlocale() 2013-11-22 22:02:17 -08:00
COPYING Bug 19379 - Provide docs with overview of all compose key combinations 2010-09-21 18:22:21 -07:00
cpprules.in Restore lost tabs in sed commands 2014-05-23 17:27:10 -07:00
docbook.am docbook.am: embed css styles inside the HTML HEAD element 2011-12-30 17:08:14 -05:00
Makefile.am specs: build compose keys tables in specs/i18n/compose 2011-08-05 12:36:03 -04:00
NEWS Move security fixes to the top of NEWS, and fix spacing. 2007-06-03 21:41:47 -07:00
README Update README to reflect where to find the Xlib specs now 2013-06-03 20:07:05 -07:00
x11-xcb.pc.in Split public Xlib/XCB functions into libX11-xcb 2006-10-05 17:44:22 -07:00
x11.pc.in Bug 15664: xau & xdmcp not needed in x11.pc dependencies when built with xcb 2009-03-12 17:11:42 -07:00

README 

libX11 - Core X11 protocol client library

Documentation for this library can be found in the included man pages,
and in the Xlib spec from the specs subdirectory, also available at:

    http://www.x.org/releases/current/doc/libX11/libX11/libX11.html
    http://www.x.org/releases/current/doc/libX11/libX11/libX11.pdf

and the O'Reilly Xlib books, which they have made freely available online,
though only for older versions of X11:

 - X Series Volume 2: Xlib Reference Manual (1989, covers X11R3)
	http://www.archive.org/details/xlibretmanver1102nyemiss

 - X Series Volume 2: Xlib Reference Manual, 2nd Edition (1990, covers X11R4)
	http://www.archive.org/details/xlibrefmanv115ed02nyemiss

All questions regarding this software should be directed at the
Xorg mailing list:

        http://lists.freedesktop.org/mailman/listinfo/xorg

Please submit bug reports to the Xorg bugzilla:

        https://bugs.freedesktop.org/enter_bug.cgi?product=xorg

The master development code repository can be found at:

        git://anongit.freedesktop.org/git/xorg/lib/libX11

        http://cgit.freedesktop.org/xorg/lib/libX11

For patch submission instructions, see:

	http://www.x.org/wiki/Development/Documentation/SubmittingPatches

For more information on the git code manager, see:

        http://wiki.x.org/wiki/GitPage