diff -r 383503790304 dwm.c
--- a/dwm.c	Sat Sep 22 23:03:45 2007 +0200
+++ b/dwm.c	Sat Sep 22 23:04:19 2007 +0200
@@ -126,6 +126,7 @@ void destroynotify(XEvent *e);
 void destroynotify(XEvent *e);
 void detach(Client *c);
 void detachstack(Client *c);
+void doreload(void);
 void drawbar(void);
 void drawsquare(Bool filled, Bool empty, unsigned long col[ColLast]);
 void drawtext(const char *text, unsigned long col[ColLast]);
@@ -185,6 +186,7 @@ void updatebarpos(void);
 void updatebarpos(void);
 void updatesizehints(Client *c);
 void updatetitle(Client *c);
+void sigusr1(int notused);
 void view(const char *arg);
 int xerror(Display *dpy, XErrorEvent *ee);
 int xerrordummy(Display *dsply, XErrorEvent *ee);
@@ -192,6 +194,8 @@ void zoom(const char *arg);
 void zoom(const char *arg);
 
 /* variables */
+char **cargv;
+char **environ;
 char stext[256];
 double mwfact;
 int screen, sx, sy, sw, sh, wax, way, waw, wah;
@@ -218,6 +222,7 @@ void (*handler[LASTEvent]) (XEvent *) = 
 };
 Atom wmatom[WMLast], netatom[NetLast];
 Bool otherwm, readin;
+Bool reload = False;
 Bool running = True;
 Bool *seltags;
 Bool selscreen = True;
@@ -376,7 +381,6 @@ checkotherwm(void) {
 
 void
 cleanup(void) {
-	close(STDIN_FILENO);
 	while(stack) {
 		unban(stack);
 		unmanage(stack);
@@ -528,6 +532,11 @@ detachstack(Client *c) {
 
 	for(tc=&stack; *tc && *tc != c; tc=&(*tc)->snext);
 	*tc = c->snext;
+}
+
+void doreload(void) {
+	execve(cargv[0], cargv, environ);
+	eprint("Can't exec: %s", strerror(errno));
 }
 
 void
@@ -1562,6 +1571,8 @@ setup(void) {
 
 	/* multihead support */
 	selscreen = XQueryPointer(dpy, root, &w, &w, &d, &d, &d, &d, &mask);
+	if (signal(SIGUSR1, sigusr1) == SIG_ERR) 
+		eprint("Can't bind to signal USR1");
 }
 
 void
@@ -1874,6 +1885,11 @@ xerror(Display *dpy, XErrorEvent *ee) {
 	return xerrorxlib(dpy, ee); /* may call exit */
 }
 
+void sigusr1(int notused) {
+	quit(NULL);
+	reload = True;
+}
+
 int
 xerrordummy(Display *dsply, XErrorEvent *ee) {
 	return 0;
@@ -1920,6 +1936,7 @@ main(int argc, char *argv[]) {
 		eprint("dwm-"VERSION", © 2006-2007 A. R. Garbe, S. van Dijk, J. Salmi, P. Hruby, S. Nagy\n");
 	else if(argc != 1)
 		eprint("usage: dwm [-v]\n");
+	cargv = argv;
 
 	setlocale(LC_CTYPE, "");
 	if(!(dpy = XOpenDisplay(0)))
@@ -1935,5 +1952,6 @@ main(int argc, char *argv[]) {
 	cleanup();
 
 	XCloseDisplay(dpy);
+	if (reload) doreload();
 	return 0;
 }