Revert "Do not discard unread data from XGetWindowProperty"

This reverts commit 6ad5307d585930c79feaf5d8aaf791277df067c9.

3 files changed, 9 insertions, 35 deletions

diff --git a/util/IMdkit/Xi18n.h b/util/IMdkit/Xi18n.h
index e673f54..aaf7768 100644
--- a/util/IMdkit/Xi18n.h
+++ b/util/IMdkit/Xi18n.h
@@ -149,8 +149,6 @@ typedef struct _Xi18nClient
      */
     int		sync;
     XIMPending  *pending;
-    /* property offset to read next data */
-    long        property_offset;
     void *trans_rec;		/* contains transport specific data  */
     struct _Xi18nClient *next;
 } Xi18nClient;
diff --git a/util/IMdkit/i18nUtil.c b/util/IMdkit/i18nUtil.c
index c07de48..22a2376 100644
--- a/util/IMdkit/i18nUtil.c
+++ b/util/IMdkit/i18nUtil.c
@@ -70,7 +70,6 @@ Xi18nClient *_Xi18nNewClient(Xi18n i18n_core)
     client->sync = False;
     client->byte_order = '?'; 	/* initial value */
     memset (&client->pending, 0, sizeof (XIMPending *));
-    client->property_offset = 0;
     client->next = i18n_core->address.clients;
     i18n_core->address.clients = client;
 
diff --git a/util/IMdkit/i18nX.c b/util/IMdkit/i18nX.c
index df0edec..a5ba080 100644
--- a/util/IMdkit/i18nX.c
+++ b/util/IMdkit/i18nX.c
@@ -29,7 +29,6 @@ IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  
 ******************************************************************/
 
-#include <limits.h>
 #include <X11/Xlib.h>
 #include <X11/Xatom.h>
 #include "FrameMgr.h"
@@ -129,7 +128,6 @@ static unsigned char *ReadXIMMessage (XIMS ims,
     else if (ev->format == 32) {
         /* ClientMessage and WindowProperty */
         unsigned long length = (unsigned long) ev->data.l[0];
-	unsigned long get_length;
         Atom atom = (Atom) ev->data.l[1];
         int	return_code;
         Atom	actual_type_ret;
@@ -138,20 +136,11 @@ static unsigned char *ReadXIMMessage (XIMS ims,
         unsigned char *prop;
         unsigned long nitems;
 
-	/* Round up length to next 4 byte value. */
-	get_length = length + 3;
-	if (get_length > LONG_MAX)
-		get_length = LONG_MAX;
-	get_length /= 4;
-	if (get_length == 0) {
-		fprintf(stderr, "%s: invalid length 0\n", __FUNCTION__);
-		return NULL;
-	}
         return_code = XGetWindowProperty (i18n_core->address.dpy,
                                           x_client->accept_win,
                                           atom,
-                                          client->property_offset / 4,
-                                          get_length,
+                                          0L,
+                                          length,
                                           True,
                                           AnyPropertyType,
                                           &actual_type_ret,
@@ -162,27 +151,15 @@ static unsigned char *ReadXIMMessage (XIMS ims,
         if (return_code != Success || actual_format_ret == 0 || nitems == 0) {
             if (return_code == Success)
                 XFree (prop);
-	    client->property_offset = 0;
             return (unsigned char *) NULL;
         }
-	/* Update the offset to read next time as needed */
-	if (bytes_after_ret > 0)
-		client->property_offset += length;
-	else
-		client->property_offset = 0;
-	switch (actual_format_ret) {
-	    case 8:
-	    case 16:
-	    case 32:
-		    length = nitems * actual_format_ret / 8;
-		    break;
-	    default:
-		    fprintf(stderr, "%s: unknown property return format: %d\n",
-			    __FUNCTION__, actual_format_ret);
-		    XFree(prop);
-		    client->property_offset = 0;
-		    return NULL;
-	}
+        if (length != nitems)
+            length = nitems;
+	if (actual_format_ret == 16)
+	    length *= 2;
+	else if (actual_format_ret == 32)
+	    length *= 4;
+
         /* if hit, it might be an error */
         if ((p = (unsigned char *) malloc (length)) == NULL)
             return (unsigned char *) NULL;