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authorAlan Coopersmith <alan.coopersmith@oracle.com>2013-04-13 11:05:27 -0700
committerAlan Coopersmith <alan.coopersmith@oracle.com>2013-04-13 11:05:27 -0700
commit46ed6283034b5b7d14584009453f5d974cfacf1e (patch)
tree978ba7fc4c7e9c4070a6be3a8dfc1cef8809707b /src
parent2aafac9474a0a0a0c39797862f823255918cf368 (diff)
Use _XEatDataWords to eat data in error cases
Avoids having to do calculcations based on response contents Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Diffstat (limited to 'src')
-rw-r--r--src/XRecord.c23
1 files changed, 17 insertions, 6 deletions
diff --git a/src/XRecord.c b/src/XRecord.c
index b65451c..ba628b6 100644
--- a/src/XRecord.c
+++ b/src/XRecord.c
@@ -49,6 +49,9 @@ from The Open Group.
* By Stephen Gildea, X Consortium, and Martha Zimet, NCD.
*/
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
#include <stdio.h>
#include <assert.h>
#include <X11/Xlibint.h>
@@ -56,6 +59,18 @@ from The Open Group.
#include <X11/extensions/extutil.h>
#include <X11/extensions/recordproto.h>
#include <X11/extensions/record.h>
+#include <limits.h>
+
+#ifndef HAVE__XEATDATAWORDS
+static inline void _XEatDataWords(Display *dpy, unsigned long n)
+{
+# ifndef LONG64
+ if (n >= (ULONG_MAX >> 2))
+ _XIOError(dpy);
+# endif
+ _XEatData (dpy, n << 2);
+}
+#endif
static XExtensionInfo _xrecord_info_data;
static XExtensionInfo *xrecord_info = &_xrecord_info_data;
@@ -427,7 +442,7 @@ XRecordGetContext(Display *dpy, XRecordContext context,
ret = (XRecordState*)Xmalloc(sizeof(XRecordState));
if (!ret) {
- /* XXX - eat data */
+ _XEatDataWords (dpy, rep.length);
UnlockDisplay(dpy);
SyncHandle();
return 0;
@@ -446,11 +461,7 @@ XRecordGetContext(Display *dpy, XRecordContext context,
}
if (!client_inf || !client_inf_str)
{
- for(i = 0; i < count; i++)
- {
- _XEatData (dpy, sizeof(xRecordClientInfo));
- _XEatData (dpy, SIZEOF(xRecordRange)); /* XXX - don't know how many */
- }
+ _XEatDataWords (dpy, rep.length);
UnlockDisplay(dpy);
XRecordFreeState(ret);
SyncHandle();