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In compext Atom has the size of XlibAtom. Therefore calling functions
of Compext.c requires to use/pass XlibAtom. Same for Window/XlibWindow.
==15438==ERROR: AddressSanitizer: stack-buffer-overflow on address 0x7fffffffcdc0 at pc 0x5555556a81b5 bp 0x7fffffffcd10 sp 0x7fffffffcd08
WRITE of size 8 at 0x7fffffffcdc0 thread T0
#0 0x5555556a81b4 in NXGetCollectedProperty nx-X11/programs/Xserver/hw/nxagent/compext/Compext.c:4124
#1 0x5555557d0488 in nxagentCollectPropertyEvent nx-X11/programs/Xserver/hw/nxagent/Clipboard.c:1202
#2 0x555555723340 in nxagentHandleCollectPropertyEvent nx-X11/programs/Xserver/hw/nxagent/Events.c:3923
#3 0x55555571d4db in nxagentHandleProxyEvent nx-X11/programs/Xserver/hw/nxagent/Events.c:3007
#4 0x55555571bb92 in nxagentHandleClientMessageEvent nx-X11/programs/Xserver/hw/nxagent/Events.c:2595
#5 0x555555717dfc in nxagentDispatchEvents nx-X11/programs/Xserver/hw/nxagent/Events.c:1827
#6 0x555555750813 in nxagentBlockHandler nx-X11/programs/Xserver/hw/nxagent/Handlers.c:437
#7 0x5555556c1b5d in BlockHandler nx-X11/programs/Xserver/dix/dixutils.c:403
#8 0x5555556d47ff in WaitForSomething nx-X11/programs/Xserver/os/WaitFor.c:232
#9 0x555555665b22 in Dispatch nx-X11/programs/Xserver/hw/nxagent/NXdispatch.c:365
#10 0x5555555ed760 in main nx-X11/programs/Xserver/dix/main.c:350
#11 0x7ffff604909a in __libc_start_main ../csu/libc-start.c:308
#12 0x5555555edc09 in _start (nx-X11/programs/Xserver/nxagent+0x99c09)
Address 0x7fffffffcdc0 is located in stack of thread T0 at offset 32 in frame
#0 0x5555557d0324 in nxagentCollectPropertyEvent nx-X11/programs/Xserver/hw/nxagent/Clipboard.c:1190
This frame has 5 object(s):
[32, 36) 'atomReturnType' <== Memory access at offset 32 partially overflows this variable
[96, 100) 'resultFormat'
[160, 168) 'ulReturnItems'
[224, 232) 'ulReturnBytesLeft'
[288, 296) 'pszReturnData'
HINT: this may be a false positive if your program uses some custom stack unwind mechanism, swapcontext or vfork
(longjmp and C++ exceptions *are* supported)
SUMMARY: AddressSanitizer: stack-buffer-overflow nx-X11/programs/Xserver/hw/nxagent/compext/Compext.c:4124 in NXGetCollectedProperty
...
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Clean.c: In function ‘CleanZImage’:
Clean.c:141:23: warning: declaration of ‘j’ shadows a previous local [-Wshadow=local]
register int i, j;
^
Clean.c:88:16: note: shadowed declaration is here
unsigned int j;
^
Clean.c: In function ‘CopyAndCleanImage’:
Clean.c:239:22: warning: declaration of ‘i’ shadows a previous local [-Wshadow=compatible-local]
register int i;
^
Clean.c:192:16: note: shadowed declaration is here
register int i;
^
Clean.c:324:13: warning: declaration of ‘i’ shadows a previous local [-Wshadow=compatible-local]
int i;
^
Clean.c:192:16: note: shadowed declaration is here
register int i;
^
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Move allocation of image_index close before first_use. This way we do
not need to free it if previous step fail. And we cannot forget that
free() call.
While at it replace malloc+memset by calloc.
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913fcf1a74426725f14380dd5b34286a21c37ab7.
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are directly available.
Especially don't add linking flags willy-nilly.
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includes at build time.
Fixes ArcticaProject/nx-libs#276.
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