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Upstream is here:
https://bugs.freedesktop.org/show_bug.cgi?id=18451
Upstream-status: Backport
Signed-off-by: Christopher Hallinan <challinan (a] gmail.com>
diff --git a/Xext/xace.c b/Xext/xace.c
index e10d837..c757cad 100644
--- a/Xext/xace.c
+++ b/Xext/xace.c
@@ -87,7 +87,18 @@ void XaceHookAuditEnd(ClientPtr ptr, int result)
*/
int XaceHook(int hook, ...)
{
- pointer calldata; /* data passed to callback */
+ union {
+ XaceResourceAccessRec res;
+ XaceDeviceAccessRec dev;
+ XaceSendAccessRec send;
+ XaceReceiveAccessRec recv;
+ XaceClientAccessRec client;
+ XaceExtAccessRec ext;
+ XaceServerAccessRec server;
+ XaceScreenAccessRec screen;
+ XaceAuthAvailRec auth;
+ XaceKeyAvailRec key;
+ } u;
int *prv = NULL; /* points to return value from callback */
va_list ap; /* argument list */
va_start(ap, hook);
@@ -99,117 +110,86 @@ int XaceHook(int hook, ...)
*/
switch (hook)
{
- case XACE_RESOURCE_ACCESS: {
- XaceResourceAccessRec rec;
- rec.client = va_arg(ap, ClientPtr);
- rec.id = va_arg(ap, XID);
- rec.rtype = va_arg(ap, RESTYPE);
- rec.res = va_arg(ap, pointer);
- rec.ptype = va_arg(ap, RESTYPE);
- rec.parent = va_arg(ap, pointer);
- rec.access_mode = va_arg(ap, Mask);
- rec.status = Success; /* default allow */
- calldata = &rec;
- prv = &rec.status;
+ case XACE_RESOURCE_ACCESS:
+ u.res.client = va_arg(ap, ClientPtr);
+ u.res.id = va_arg(ap, XID);
+ u.res.rtype = va_arg(ap, RESTYPE);
+ u.res.res = va_arg(ap, pointer);
+ u.res.ptype = va_arg(ap, RESTYPE);
+ u.res.parent = va_arg(ap, pointer);
+ u.res.access_mode = va_arg(ap, Mask);
+ u.res.status = Success; /* default allow */
+ prv = &u.res.status;
break;
- }
- case XACE_DEVICE_ACCESS: {
- XaceDeviceAccessRec rec;
- rec.client = va_arg(ap, ClientPtr);
- rec.dev = va_arg(ap, DeviceIntPtr);
- rec.access_mode = va_arg(ap, Mask);
- rec.status = Success; /* default allow */
- calldata = &rec;
- prv = &rec.status;
+ case XACE_DEVICE_ACCESS:
+ u.dev.client = va_arg(ap, ClientPtr);
+ u.dev.dev = va_arg(ap, DeviceIntPtr);
+ u.dev.access_mode = va_arg(ap, Mask);
+ u.dev.status = Success; /* default allow */
+ prv = &u.dev.status;
break;
- }
- case XACE_SEND_ACCESS: {
- XaceSendAccessRec rec;
- rec.client = va_arg(ap, ClientPtr);
- rec.dev = va_arg(ap, DeviceIntPtr);
- rec.pWin = va_arg(ap, WindowPtr);
- rec.events = va_arg(ap, xEventPtr);
- rec.count = va_arg(ap, int);
- rec.status = Success; /* default allow */
- calldata = &rec;
- prv = &rec.status;
+ case XACE_SEND_ACCESS:
+ u.send.client = va_arg(ap, ClientPtr);
+ u.send.dev = va_arg(ap, DeviceIntPtr);
+ u.send.pWin = va_arg(ap, WindowPtr);
+ u.send.events = va_arg(ap, xEventPtr);
+ u.send.count = va_arg(ap, int);
+ u.send.status = Success; /* default allow */
+ prv = &u.send.status;
break;
- }
- case XACE_RECEIVE_ACCESS: {
- XaceReceiveAccessRec rec;
- rec.client = va_arg(ap, ClientPtr);
- rec.pWin = va_arg(ap, WindowPtr);
- rec.events = va_arg(ap, xEventPtr);
- rec.count = va_arg(ap, int);
- rec.status = Success; /* default allow */
- calldata = &rec;
- prv = &rec.status;
+ case XACE_RECEIVE_ACCESS:
+ u.recv.client = va_arg(ap, ClientPtr);
+ u.recv.pWin = va_arg(ap, WindowPtr);
+ u.recv.events = va_arg(ap, xEventPtr);
+ u.recv.count = va_arg(ap, int);
+ u.recv.status = Success; /* default allow */
+ prv = &u.recv.status;
break;
- }
- case XACE_CLIENT_ACCESS: {
- XaceClientAccessRec rec;
- rec.client = va_arg(ap, ClientPtr);
- rec.target = va_arg(ap, ClientPtr);
- rec.access_mode = va_arg(ap, Mask);
- rec.status = Success; /* default allow */
- calldata = &rec;
- prv = &rec.status;
+ case XACE_CLIENT_ACCESS:
+ u.client.client = va_arg(ap, ClientPtr);
+ u.client.target = va_arg(ap, ClientPtr);
+ u.client.access_mode = va_arg(ap, Mask);
+ u.client.status = Success; /* default allow */
+ prv = &u.client.status;
break;
- }
- case XACE_EXT_ACCESS: {
- XaceExtAccessRec rec;
- rec.client = va_arg(ap, ClientPtr);
- rec.ext = va_arg(ap, ExtensionEntry*);
- rec.access_mode = DixGetAttrAccess;
- rec.status = Success; /* default allow */
- calldata = &rec;
- prv = &rec.status;
+ case XACE_EXT_ACCESS:
+ u.ext.client = va_arg(ap, ClientPtr);
+ u.ext.ext = va_arg(ap, ExtensionEntry*);
+ u.ext.access_mode = DixGetAttrAccess;
+ u.ext.status = Success; /* default allow */
+ prv = &u.ext.status;
break;
- }
- case XACE_SERVER_ACCESS: {
- XaceServerAccessRec rec;
- rec.client = va_arg(ap, ClientPtr);
- rec.access_mode = va_arg(ap, Mask);
- rec.status = Success; /* default allow */
- calldata = &rec;
- prv = &rec.status;
+ case XACE_SERVER_ACCESS:
+ u.server.client = va_arg(ap, ClientPtr);
+ u.server.access_mode = va_arg(ap, Mask);
+ u.server.status = Success; /* default allow */
+ prv = &u.server.status;
break;
- }
case XACE_SCREEN_ACCESS:
- case XACE_SCREENSAVER_ACCESS: {
- XaceScreenAccessRec rec;
- rec.client = va_arg(ap, ClientPtr);
- rec.screen = va_arg(ap, ScreenPtr);
- rec.access_mode = va_arg(ap, Mask);
- rec.status = Success; /* default allow */
- calldata = &rec;
- prv = &rec.status;
+ case XACE_SCREENSAVER_ACCESS:
+ u.screen.client = va_arg(ap, ClientPtr);
+ u.screen.screen = va_arg(ap, ScreenPtr);
+ u.screen.access_mode = va_arg(ap, Mask);
+ u.screen.status = Success; /* default allow */
+ prv = &u.screen.status;
break;
- }
- case XACE_AUTH_AVAIL: {
- XaceAuthAvailRec rec;
- rec.client = va_arg(ap, ClientPtr);
- rec.authId = va_arg(ap, XID);
- calldata = &rec;
+ case XACE_AUTH_AVAIL:
+ u.auth.client = va_arg(ap, ClientPtr);
+ u.auth.authId = va_arg(ap, XID);
break;
- }
- case XACE_KEY_AVAIL: {
- XaceKeyAvailRec rec;
- rec.event = va_arg(ap, xEventPtr);
- rec.keybd = va_arg(ap, DeviceIntPtr);
- rec.count = va_arg(ap, int);
- calldata = &rec;
+ case XACE_KEY_AVAIL:
+ u.key.event = va_arg(ap, xEventPtr);
+ u.key.keybd = va_arg(ap, DeviceIntPtr);
+ u.key.count = va_arg(ap, int);
break;
- }
- default: {
+ default:
va_end(ap);
return 0; /* unimplemented hook number */
- }
}
va_end(ap);
/* call callbacks and return result, if any. */
- CallCallbacks(&XaceHooks[hook], calldata);
+ CallCallbacks(&XaceHooks[hook], &u);
return prv ? *prv : Success;
}
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