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dtwm: fix a segfault.

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This commit is contained in:
hyousatsu 2023-03-28 02:16:17 +00:00
parent 760d36bfe9
commit b979a073df
1 changed files with 7 additions and 4 deletions
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11
cde/programs/dtwm/WmProperty.c
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@ -38,6 +38,7 @@
#include "WmICCC.h"
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <Dt/WsmP.h>
#include <X11/Xatom.h>
#include <Xm/AtomMgr.h>
@ -1954,18 +1955,20 @@ void UpdateNetWmState (Window window, Atom *states, unsigned long nstates,
{
int i, j, actualFormat;
unsigned long nold, leftover;
Atom actualType, *oldStates, *newStates;
Atom actualType;
unsigned long nnew = 0;
Atom type = wmGD.xa__NET_WM_STATE;
Atom *oldStates = NULL;
Atom *newStates = NULL;
if (!states) nstates = 0;
if (!(XGetWindowProperty (DISPLAY, window, type, 0L, 1000000L, False,
XA_ATOM, &actualType, &actualFormat, &nold,
&leftover, (unsigned char **) &oldStates)
== Success && actualType == XA_ATOM)) nold = 0;
if (!(states && nstates) && nold) goto done;
newStates = malloc ((nstates + nold) * sizeof (Atom));
newStates = malloc ((1 + nstates + nold) * sizeof (Atom));
if (!newStates) goto done;