1 files changed, 110 insertions, 0 deletions
diff --git a/libX11/src/xcb_disp.c b/libX11/src/xcb_disp.c
new file mode 100644
index 000000000..079c87ffa
--- /dev/null
+++ b/libX11/src/xcb_disp.c
@@ -0,0 +1,110 @@
+/* Copyright (C) 2003-2006 Jamey Sharp, Josh Triplett
+ * This file is licensed under the MIT license. See the file COPYING. */
+
+#include "Xlibint.h"
+#include "Xxcbint.h"
+#include <xcb/xcbext.h>
+#include <X11/Xatom.h>
+#include <X11/Xresource.h>
+#include <stdio.h>
+
+static xcb_auth_info_t xauth;
+
+static void *alloc_copy(const void *src, int *dstn, size_t n)
+{
+	void *dst;
+	if(n <= 0)
+	{
+		*dstn = 0;
+		return 0;
+	}
+	dst = Xmalloc(n);
+	if(!dst)
+		return 0;
+	memcpy(dst, src, n);
+	*dstn = n;
+	return dst;
+}
+
+void XSetAuthorization(char *name, int namelen, char *data, int datalen)
+{
+	_XLockMutex(_Xglobal_lock);
+	Xfree(xauth.name);
+	Xfree(xauth.data);
+
+	/* if either of these allocs fail, _XConnectXCB won't use this auth
+	 * data, so we don't need to check it here. */
+	xauth.name = alloc_copy(name, &xauth.namelen, namelen);
+	xauth.data = alloc_copy(data, &xauth.datalen, datalen);
+
+#if 0 /* but, for the paranoid among us: */
+	if((namelen > 0 && !xauth.name) || (datalen > 0 && !xauth.data))
+	{
+		Xfree(xauth.name);
+		Xfree(xauth.data);
+		xauth.name = xauth.data = 0;
+		xauth.namelen = xauth.datalen = 0;
+	}
+#endif
+
+	_XUnlockMutex(_Xglobal_lock);
+}
+
+int _XConnectXCB(Display *dpy, _Xconst char *display, char **fullnamep, int *screenp)
+{
+	char *host;
+	int n = 0;
+	int len;
+	xcb_connection_t *c;
+
+	dpy->fd = -1;
+
+	dpy->xcb = Xcalloc(1, sizeof(_X11XCBPrivate));
+	if(!dpy->xcb)
+		return 0;
+
+#ifdef HAVE_LAUNCHD
+	if(!display || !*display) display = getenv("DISPLAY");
+	
+	if(display && strlen(display)>11 && !strncmp(display, "/tmp/launch", 11)) {
+		/* do nothing -- the magic happens inside of xcb_connect */
+	} else
+#endif
+	{
+		if(!xcb_parse_display(display, &host, &n, screenp))
+			return 0;
+
+		len = strlen(host) + (1 + 20 + 1 + 20 + 1);
+		*fullnamep = Xmalloc(len);
+		snprintf(*fullnamep, len, "%s:%d.%d", host, n, *screenp);
+		free(host);
+	}
+
+	_XLockMutex(_Xglobal_lock);
+	if(xauth.name && xauth.data)
+		c = xcb_connect_to_display_with_auth_info(display, &xauth, 0);
+	else
+		c = xcb_connect(display, 0);
+	_XUnlockMutex(_Xglobal_lock);
+
+	dpy->fd = xcb_get_file_descriptor(c);
+
+	dpy->xcb->connection = c;
+	dpy->xcb->pending_requests_tail = &dpy->xcb->pending_requests;
+	dpy->xcb->next_xid = xcb_generate_id(dpy->xcb->connection);
+
+	return !xcb_connection_has_error(c);
+}
+
+void _XFreeX11XCBStructure(Display *dpy)
+{
+	/* reply_data was allocated by system malloc, not Xmalloc */
+	free(dpy->xcb->reply_data);
+	while(dpy->xcb->pending_requests)
+	{
+		PendingRequest *tmp = dpy->xcb->pending_requests;
+		dpy->xcb->pending_requests = tmp->next;
+		free(tmp);
+	}
+	Xfree(dpy->xcb);
+}