2 files changed, 128 insertions, 0 deletions
diff --git a/tests/libXext/Makefile.am b/tests/libXext/Makefile.am
index 9799bc0..3f8121e 100644
--- a/tests/libXext/Makefile.am
+++ b/tests/libXext/Makefile.am
@@ -23,6 +23,7 @@
 
 noinst_PROGRAMS  = XcupGetReservedColormapEntries
 noinst_PROGRAMS += XcupStoreColors
+noinst_PROGRAMS += XdbeGetVisualInfo
 
 AM_CPPFLAGS = -I$(top_builddir) -I$(top_srcdir)/include
 AM_CFLAGS = $(CWARNFLAGS) $(LIBXEXT_CFLAGS)
diff --git a/tests/libXext/XdbeGetVisualInfo.c b/tests/libXext/XdbeGetVisualInfo.c
new file mode 100644
index 0000000..7a5670a
--- /dev/null
+++ b/tests/libXext/XdbeGetVisualInfo.c
@@ -0,0 +1,127 @@
+/*
+ * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include "xhiv.h"
+#include <X11/Xlib.h>
+#include <X11/Xproto.h>
+#include <X11/extensions/Xdbe.h>
+#include <X11/extensions/dbeproto.h>
+#include <assert.h>
+#include <stdio.h>
+#include <limits.h>
+
+#define MY_DBE_EXT_CODE 202
+
+static void
+testOverflowFields(void)
+{
+    /* Report that DBE is present */
+    const xQueryExtensionReply dbeqext_reply = {
+        .type = X_Reply,
+        .length = 0,
+        .present = xTrue,
+        .major_opcode = MY_DBE_EXT_CODE,
+        .first_event = 100,
+        .first_error = 150
+    };
+    xhiv_response dbeqext_response = {
+        .next = NULL,
+        .reqType = X_QueryExtension,
+        .reqMinor = XHIV_REQ_IGNORE,
+        .sequence = XHIV_SEQ_MATCHDATA,
+        .match_data = DBE_PROTOCOL_NAME,
+        .length = (SIZEOF(xQueryExtensionReply) >> 2),
+        .response_data = &dbeqext_reply,
+        .response_datalen = sizeof(dbeqext_reply)
+    };
+
+    const xDbeGetVersionReply dbevers_reply = {
+        .type = X_Reply,
+        .length = 0,
+        .majorVersion = DBE_MAJOR_VERSION,
+        .minorVersion = DBE_MINOR_VERSION
+    };
+    xhiv_response dbevers_response = {
+        .next     = &dbeqext_response,
+        .reqType  = MY_DBE_EXT_CODE,
+        .reqMinor = X_DbeGetVersion,
+        .sequence = XHIV_SEQ_IGNORE,
+        .length   = (SIZEOF(xQueryExtensionReply) >> 2),
+        .response_data = &dbevers_reply,
+        .response_datalen = sizeof(dbevers_reply)
+    };
+ 
+    const xDbeGetVisualInfoReply rep1 = {
+        .type    = X_Reply,
+        .pad1    = X_DbeGetVisualInfo,
+        .length  = (UINT_MAX / sizeof(XdbeScreenVisualInfo)) + 2,
+        .m       = (UINT_MAX / sizeof(XdbeScreenVisualInfo)) + 2,
+    };
+    const CARD32 dbeviscount = 0;
+    xhiv_response dbeviscounts_response = {
+        .reqType  = XHIV_REQ_IGNORE,
+        .reqMinor = XHIV_REQ_IGNORE,
+        .sequence = XHIV_SEQ_IGNORE,
+        .length   = rep1.length,
+        .repeat   = rep1.length - 1,
+        .response_data = &dbeviscount,
+        .response_datalen = sizeof(dbeviscount)
+    };
+    xhiv_response response1 = {
+        .next     = &dbevers_response,
+        .chain    = &dbeviscounts_response,
+        .reqType  = MY_DBE_EXT_CODE,
+        .reqMinor = X_DbeGetVisualInfo,
+        .sequence = XHIV_SEQ_IGNORE,
+        .length   = (sizeof(rep1) >> 2),
+        .response_data = &rep1,
+        .response_datalen = sizeof(rep1)
+    };
+    Display *dpy = XhivOpenDisplay(&response1);
+    int major = DBE_MAJOR_VERSION, minor = DBE_MINOR_VERSION;
+    int status, nscreens = 0;
+    Drawable screens[] = { 0xdeadbeef };
+    XdbeScreenVisualInfo *vi;
+
+    status = XdbeQueryExtension(dpy, &major, &minor);
+    assert(status == True);
+
+    printf("XdbeGetVisualInfo: overflow number of screens test: 0x%lx\n",
+           (unsigned long) rep1.m);
+    vi = XdbeGetVisualInfo(dpy, screens, &nscreens);
+    XdbeFreeVisualInfo(vi);
+    assert(vi == NULL);
+
+    XhivCloseDisplay(dpy);
+}
+
+int
+main(int argc, char **argv)
+{
+    testOverflowFields();
+    printf("XdbeGetVisualInfo: all tests passed\n");
+    return 0;
+}