@@ -73,27 +73,28 @@ static int pad_to_xid(int base_size)
return ((base_size + padsize - 1)/padsize) * padsize;
}
-static size_t
-SizeClassInfo(xAnyClassPtr *any, size_t len, int num_classes)
+static int
+SizeClassInfo(xAnyClassPtr *any, size_t len, int num_classes, size_t *size)
{
- int size = 0;
int j;
+ size_t sz = 0;
+
for (j = 0; j < num_classes; j++) {
switch ((*any)->class) {
case KeyClass:
- size += pad_to_xid(sizeof(XKeyInfo));
+ sz += pad_to_xid(sizeof(XKeyInfo));
break;
case ButtonClass:
- size += pad_to_xid(sizeof(XButtonInfo));
+ sz += pad_to_xid(sizeof(XButtonInfo));
break;
case ValuatorClass:
{
xValuatorInfoPtr v;
if (len < sizeof(v))
- return 0;
+ return 1;
v = (xValuatorInfoPtr) *any;
- size += pad_to_xid(sizeof(XValuatorInfo) +
+ sz += pad_to_xid(sizeof(XValuatorInfo) +
(v->num_axes * sizeof(XAxisInfo)));
break;
}
@@ -101,11 +102,13 @@ SizeClassInfo(xAnyClassPtr *any, size_t len, int num_classes)
break;
}
if ((*any)->length > len)
- return 0;
+ return 1;
*any = (xAnyClassPtr) ((char *)(*any) + (*any)->length);
}
- return size;
+ *size = sz;
+
+ return 0;
}
static void
@@ -220,8 +223,7 @@ XListInputDevices(
sav_any = any;
end = (char *)list + rlen;
for (i = 0; i < *ndevices; i++, list++) {
- s = SizeClassInfo(&any, end - (char *)any, (int)list->num_classes);
- if (!s)
+ if(SizeClassInfo(&any, end - (char *)any, (int)list->num_classes, &s))
goto out;
size += s;
}