1 files changed, 53 insertions, 0 deletions
diff --git a/wmname.c b/wmname.c
new file mode 100644
index 0000000..924e247
--- /dev/null
+++ b/wmname.c
@@ -0,0 +1,53 @@
+/* See LICENSE file for details. */
+#include <stdarg.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <X11/Xlib.h>
+#include <X11/Xatom.h>
+#include <X11/Xutil.h>
+
+void
+eprint(const char *errstr, ...) {
+	va_list ap;
+
+	va_start(ap, errstr);
+	vfprintf(stderr, errstr, ap);
+	va_end(ap);
+	exit(EXIT_FAILURE);
+}
+
+int
+main(int argc, char **argv) {
+	int status, format;
+	unsigned char *data = NULL;
+	unsigned long n, extra;
+	Display *dpy;
+	Window root;
+	Atom netwmcheck, netwmname, utf8_string, real;
+
+	if(argc > 2)
+		eprint("usage: setwmname [name] [-v]\n");
+	else if(argc == 2 && !strncmp(argv[1], "-v", 3))
+		eprint("setwmname-"VERSION", © 2008 Anselm R Garbe\n", stdout);
+
+	if(!(dpy = XOpenDisplay(0)))
+		eprint("setwmname: cannot open display\n");
+	root = DefaultRootWindow(dpy);
+	netwmcheck = XInternAtom(dpy, "_NET_SUPPORTING_WM_CHECK", False);
+	netwmname = XInternAtom(dpy, "_NET_WM_NAME", False);
+	utf8_string = XInternAtom(dpy, "UTF8_STRING", False);
+	if(argc == 1) {
+		status = XGetWindowProperty(dpy, root, netwmname, 0L, 32L, False, utf8_string, &real, &format, &n, &extra, (unsigned char **) &data);
+		if(status == Success && data != NULL)
+			fprintf(stdout, "%s\n", data);
+		XFree(data);
+	}
+	else {
+		XChangeProperty(dpy, root, netwmcheck, XA_WINDOW, 32, PropModeReplace, (unsigned char *)&root, 1);
+		XChangeProperty(dpy, root, netwmname, utf8_string, 8, PropModeReplace, (unsigned char *)argv[1], strlen(argv[1]));
+	}
+	XSync(dpy, False);
+	XCloseDisplay(dpy);
+	return 0;
+}