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-rw-r--r--src/XEVI.c25
1 files changed, 18 insertions, 7 deletions
diff --git a/src/XEVI.c b/src/XEVI.c
index 0125c51..5a95583 100644
--- a/src/XEVI.c
+++ b/src/XEVI.c
@@ -30,6 +30,7 @@ THE USE OR PERFORMANCE OF THIS SOFTWARE.
#include <X11/extensions/Xext.h>
#include <X11/extensions/extutil.h>
#include <X11/Xutil.h>
+#include <limits.h>
#include "eat.h"
static XExtensionInfo *xevi_info;/* needs to move to globals.c */
@@ -165,13 +166,20 @@ Status XeviGetVisualInfo(
return BadAccess;
}
Xfree(temp_visual);
- sz_info = rep.n_info * sizeof(ExtendedVisualInfo);
- sz_xInfo = rep.n_info * sz_xExtendedVisualInfo;
- sz_conflict = rep.n_conflicts * sizeof(VisualID);
- sz_xConflict = rep.n_conflicts * sz_VisualID32;
- infoPtr = *evi_return = (ExtendedVisualInfo *)Xmalloc(sz_info + sz_conflict);
- xInfoPtr = temp_xInfo = (xExtendedVisualInfo *)Xmalloc(sz_xInfo);
- xConflictPtr = temp_conflict = (VisualID32 *)Xmalloc(sz_xConflict);
+ if ((rep.n_info < 65536) && (rep.n_conflicts < 65536)) {
+ sz_info = rep.n_info * sizeof(ExtendedVisualInfo);
+ sz_xInfo = rep.n_info * sz_xExtendedVisualInfo;
+ sz_conflict = rep.n_conflicts * sizeof(VisualID);
+ sz_xConflict = rep.n_conflicts * sz_VisualID32;
+ *evi_return = Xmalloc(sz_info + sz_conflict);
+ temp_xInfo = Xmalloc(sz_xInfo);
+ temp_conflict = Xmalloc(sz_xConflict);
+ } else {
+ sz_xInfo = sz_xConflict = 0;
+ *evi_return = NULL;
+ temp_xInfo = NULL;
+ temp_conflict = NULL;
+ }
if (!*evi_return || !temp_xInfo || !temp_conflict) {
_XEatDataWords(dpy, rep.length);
UnlockDisplay(dpy);
@@ -188,6 +196,9 @@ Status XeviGetVisualInfo(
_XRead(dpy, (char *)temp_conflict, sz_xConflict);
UnlockDisplay(dpy);
SyncHandle();
+ infoPtr = *evi_return;
+ xInfoPtr = temp_xInfo;
+ xConflictPtr = temp_conflict;
n_data = rep.n_info;
conflict = (VisualID *)(infoPtr + n_data);
while (n_data-- > 0) {