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/*
* 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 <assert.h>
#include <stdio.h>
static void
testOverflowFields(void)
{
/* Test integer overflow of .nCharInfos * sizeof(XCharStruct) */
const xQueryFontReply rep1 = {
.type = X_Reply,
.length = ((2 * SIZEOF(xCharInfo)) + SIZEOF(xQueryFontReply)
- SIZEOF(xReply)) >> 2,
.nFontProps = 0,
.nCharInfos = (UINT32_MAX / sizeof(XCharStruct)) + 2
};
/* Test reporting more properties than length allows for */
const xQueryFontReply rep2 = {
.type = X_Reply,
.length = (SIZEOF(xQueryFontReply) - SIZEOF(xReply)) >> 2,
.nFontProps = 32,
.nCharInfos = 0
};
/* Test reporting more characters than length allows for */
const xQueryFontReply rep3 = {
.type = X_Reply,
.length = (SIZEOF(xQueryFontReply) - SIZEOF(xReply)) >> 2,
.nFontProps = 0,
.nCharInfos = 32
};
/* Empty lists for initialization query */
const xQueryFontReply rep_init = {
.type = X_Reply,
.length = (SIZEOF(xQueryFontReply) - SIZEOF(xReply)) >> 2,
.nFontProps = 0,
.nCharInfos = 0
};
xhiv_response response_init = {
.next = NULL,
.reqType = X_QueryFont,
.reqMinor = XHIV_REQ_IGNORE,
.sequence = XHIV_SEQ_IGNORE,
.length = (SIZEOF(xQueryFontReply)) >> 2,
.response_data = &rep_init,
.response_datalen = sizeof(rep_init)
};
xhiv_response response3 = {
.next = &response_init,
.reqType = X_QueryFont,
.reqMinor = XHIV_REQ_IGNORE,
.sequence = 103,
.length = (SIZEOF(xQueryFontReply)) >> 2,
.response_data = &rep3,
.response_datalen = sizeof(rep3)
};
xhiv_response response2 = {
.next = &response3,
.reqType = X_QueryFont,
.reqMinor = XHIV_REQ_IGNORE,
.sequence = 102,
.length = (SIZEOF(xQueryFontReply)) >> 2,
.response_data = &rep2,
.response_datalen = sizeof(rep2)
};
xhiv_response response1 = {
.next = &response2,
.reqType = X_QueryFont,
.reqMinor = XHIV_REQ_IGNORE,
.sequence = 101,
.length = (SIZEOF(xQueryFontReply) + (2 * SIZEOF(xCharInfo))) >> 2,
.response_data = &rep1,
.response_datalen = sizeof(rep1)
};
Display *dpy = XhivOpenDisplay(&response1);
XFontStruct *font;
/* initial query to get Xlib to initialize XF86Bigfont extension hooks
so we don't have to count those requests in later sequences */
font = XQueryFont(dpy, 1);
assert(font != NULL);
/* set sequence to known value so that later calls match by sequence num */
XhivSequenceSync(dpy, 100);
printf("XQueryFont: overflow test - nCharInfos = 0x%lx\n",
(unsigned long) rep1.nCharInfos);
font = XQueryFont(dpy, 1);
assert(font == NULL);
printf("XQueryFont: overlength test - nFontProps = %d / length = %d\n",
rep2.nFontProps, rep2.length);
font = XQueryFont(dpy, 1);
assert(font == NULL);
printf("XQueryFont: overlength test - nCharInfos = %d / length = %d\n",
rep3.nCharInfos, rep3.length);
font = XQueryFont(dpy, 1);
assert(font == NULL);
XhivCloseDisplay(dpy);
}
int
main(int argc, char **argv)
{
testOverflowFields();
printf("XQueryFont: all tests passed\n");
return 0;
}
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