andreacavalli/xserver-multidpi
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Fix id in error when resource does not exist

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Always set client->errorValue before returning an error.

Test program:

int main(int argc, char *argv[]) {
    int screen = 0;
    xcb_connection_t *c = xcb_connect(NULL, &screen);
    if (!c) {
        printf("Cannot connect\n");
        return 1;
    }

    xcb_void_cookie_t tok = xcb_free_gc_checked(c, BAD_VALUE);
    xcb_g_context_error_t *err = (xcb_g_context_error_t *)xcb_request_check(c, tok);
    if (!err) {
        printf("Unexpected request success\n");
        return 1;
    }
    if (err->bad_value != BAD_VALUE) {
        printf("Error: Got 0x%X, expected 0x%X\n", err->bad_value, BAD_VALUE);
        return 1;
    }
    printf("Success! Got expected bad value of 0x%X\n", BAD_VALUE);
    return 0;
}

Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Peter Harris <pharris@opentext.com>
This commit is contained in:
Peter Harris 2016-09-29 11:17:48 -04:00 committed by Adam Jackson
parent f4a4115547
commit 97a8353ec1
1 changed files with 6 additions and 2 deletions
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8
dix/resource.c
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@ -1220,11 +1220,13 @@ dixLookupResourceByType(void **result, XID id, RESTYPE rtype,
if (res->id == id && res->type == rtype)
break;
}
if (client) {
client->errorValue = id;
}
if (!res)
return resourceTypes[rtype & TypeMask].errorValue;
if (client) {
client->errorValue = id;
cid = XaceHook(XACE_RESOURCE_ACCESS, client, id, res->type,
res->value, RT_NONE, NULL, mode);
if (cid == BadValue)
@ -1253,11 +1255,13 @@ dixLookupResourceByClass(void **result, XID id, RESTYPE rclass,
if (res->id == id && (res->type & rclass))
break;
}
if (client) {
client->errorValue = id;
}
if (!res)
return BadValue;
if (client) {
client->errorValue = id;
cid = XaceHook(XACE_RESOURCE_ACCESS, client, id, res->type,
res->value, RT_NONE, NULL, mode);
if (cid != Success)