diff --git a/config.def.h b/config.def.h
index d6e379c..4362860 100644
--- a/config.def.h
+++ b/config.def.h
@@ -3,6 +3,7 @@
 /* appearance */
 static const unsigned int borderpx  = 1;        /* border pixel of windows */
 static const unsigned int snap      = 32;       /* snap pixel */
+static const int swallowfloating    = 0;        /* 1 means swallow floating windows by default */
 static const int showbar            = 1;        /* 0 means no standard bar */
 static const int topbar             = 1;        /* 0 means standard bar at bottom */
 static const int extrabar           = 1;        /* 0 means no extra bar */
@@ -37,9 +38,11 @@ static const Rule rules[] = {
 	 *	WM_CLASS(STRING) = instance, class
 	 *	WM_NAME(STRING) = title
 	 */
-	/* class      instance    title       tags mask     isfloating   monitor */
-	{ "Gimp",     NULL,       NULL,       0,            1,           -1 },
-	{ "Firefox",  NULL,       NULL,       1 << 8,       0,           -1 },
+	/* class     instance  title           tags mask  isfloating  isterminal  noswallow  monitor */
+	{ "Gimp",    NULL,     NULL,           0,         1,          0,           0,        -1 },
+	{ "Firefox", NULL,     NULL,           1 << 8,    0,          0,          -1,        -1 },
+	{ "St",      NULL,     NULL,           0,         0,          1,           0,        -1 },
+	{ NULL,      NULL,     "Event Tester", 0,         0,          0,           1,        -1 }, /* xev */
 };
 
 /* layout(s) */
diff --git a/config.mk b/config.mk
index 8df2978..9f80920 100644
--- a/config.mk
+++ b/config.mk
@@ -20,10 +20,11 @@ FREETYPEINC = /usr/include/freetype2
 # OpenBSD (uncomment)
 #FREETYPEINC = ${X11INC}/freetype2
 #MANPREFIX = ${PREFIX}/man
+#KVMLIB = -lkvm
 
 # includes and libs
 INCS = -I${X11INC} -I${FREETYPEINC}
-LIBS = -L${X11LIB} -lX11 ${XINERAMALIBS} ${FREETYPELIBS} -lXrender
+LIBS = -L${X11LIB} -lX11 ${XINERAMALIBS} ${FREETYPELIBS} -lXrender -lX11-xcb -lxcb -lxcb-res ${KVMLIB}
 
 # flags
 CPPFLAGS = -D_DEFAULT_SOURCE -D_BSD_SOURCE -D_XOPEN_SOURCE=700L -DVERSION=\"${VERSION}\" ${XINERAMAFLAGS}
diff --git a/dwm.c b/dwm.c
index 8c5ab63..41a24ba 100644
--- a/dwm.c
+++ b/dwm.c
@@ -40,6 +40,12 @@
 #include <X11/extensions/Xinerama.h>
 #endif /* XINERAMA */
 #include <X11/Xft/Xft.h>
+#include <X11/Xlib-xcb.h>
+#include <xcb/res.h>
+#ifdef __OpenBSD__
+#include <sys/sysctl.h>
+#include <kvm.h>
+#endif /* __OpenBSD */
 
 #include "drw.h"
 #include "util.h"
@@ -96,9 +102,11 @@ struct Client {
 	int basew, baseh, incw, inch, maxw, maxh, minw, minh, hintsvalid;
 	int bw, oldbw;
 	unsigned int tags;
-	int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen;
+	int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen, isterminal, noswallow;
+	pid_t pid;
 	Client *next;
 	Client *snext;
+	Client *swallowing;
 	Monitor *mon;
 	Window win;
 };
@@ -150,6 +158,8 @@ typedef struct {
 	const char *title;
 	unsigned int tags;
 	int isfloating;
+	int isterminal;
+	int noswallow;
 	int monitor;
 } Rule;
 
@@ -260,6 +270,12 @@ static int xerrorstart(Display *dpy, XErrorEvent *ee);
 static void xinitvisual();
 static void zoom(const Arg *arg);
 
+static pid_t getparentprocess(pid_t p);
+static int isdescprocess(pid_t p, pid_t c);
+static Client *swallowingclient(Window w);
+static Client *termforwin(const Client *c);
+static pid_t winpid(Window w);
+
 /* variables */
 static const char broken[] = "broken";
 static char stext[256];
@@ -302,6 +318,8 @@ static Visual *visual;
 static int depth;
 static Colormap cmap;
 
+static xcb_connection_t *xcon;
+
 /* configuration, allows nested code to access above variables */
 #include "config.h"
 
@@ -340,6 +358,8 @@ applyrules(Client *c)
 		&& (!r->class || strstr(class, r->class))
 		&& (!r->instance || strstr(instance, r->instance)))
 		{
+			c->isterminal = r->isterminal;
+			c->noswallow  = r->noswallow;
 			c->isfloating = r->isfloating;
 			c->tags |= r->tags;
 			for (m = mons; m && m->num != r->monitor; m = m->next);
@@ -467,6 +487,53 @@ attachstack(Client *c)
 	c->mon->stack = c;
 }
 
+void
+swallow(Client *p, Client *c)
+{
+
+	if (c->noswallow || c->isterminal)
+		return;
+	if (c->noswallow && !swallowfloating && c->isfloating)
+		return;
+
+	detach(c);
+	detachstack(c);
+
+	setclientstate(c, WithdrawnState);
+	XUnmapWindow(dpy, p->win);
+
+	p->swallowing = c;
+	c->mon = p->mon;
+
+	Window w = p->win;
+	p->win = c->win;
+	c->win = w;
+	updatetitle(p);
+	XMoveResizeWindow(dpy, p->win, p->x, p->y, p->w, p->h);
+	arrange(p->mon);
+	configure(p);
+	updateclientlist();
+}
+
+void
+unswallow(Client *c)
+{
+	c->win = c->swallowing->win;
+
+	free(c->swallowing);
+	c->swallowing = NULL;
+
+	/* unfullscreen the client */
+	setfullscreen(c, 0);
+	updatetitle(c);
+	arrange(c->mon);
+	XMapWindow(dpy, c->win);
+	XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
+	setclientstate(c, NormalState);
+	focus(NULL);
+	arrange(c->mon);
+}
+
 void
 buttonpress(XEvent *e)
 {
@@ -741,6 +808,9 @@ destroynotify(XEvent *e)
 
 	if ((c = wintoclient(ev->window)))
 		unmanage(c, 1);
+
+	else if ((c = swallowingclient(ev->window)))
+		unmanage(c->swallowing, 1);
 }
 
 void
@@ -1217,12 +1287,13 @@ killclient(const Arg *arg)
 void
 manage(Window w, XWindowAttributes *wa)
 {
-	Client *c, *t = NULL;
+	Client *c, *t = NULL, *term = NULL;
 	Window trans = None;
 	XWindowChanges wc;
 
 	c = ecalloc(1, sizeof(Client));
 	c->win = w;
+	c->pid = winpid(w);
 	/* geometry */
 	c->x = c->oldx = wa->x;
 	c->y = c->oldy = wa->y;
@@ -1237,6 +1308,7 @@ manage(Window w, XWindowAttributes *wa)
 	} else {
 		c->mon = selmon;
 		applyrules(c);
+		term = termforwin(c);
 	}
 
 	if (c->x + WIDTH(c) > c->mon->wx + c->mon->ww)
@@ -1297,6 +1369,8 @@ manage(Window w, XWindowAttributes *wa)
 	arrange(c->mon);
 	if (!HIDDEN(c))
 		XMapWindow(dpy, c->win);
+	if (term)
+		swallow(term, c);
 	focus(NULL);
 }
 
@@ -2170,6 +2244,20 @@ unmanage(Client *c, int destroyed)
 	Monitor *m = c->mon;
 	XWindowChanges wc;
 
+	if (c->swallowing) {
+		unswallow(c);
+		return;
+	}
+
+	Client *s = swallowingclient(c->win);
+	if (s) {
+		free(s->swallowing);
+		s->swallowing = NULL;
+		arrange(m);
+		focus(NULL);
+		return;
+	}
+
 	detach(c);
 	detachstack(c);
 	if (!destroyed) {
@@ -2185,9 +2273,12 @@ unmanage(Client *c, int destroyed)
 		XUngrabServer(dpy);
 	}
 	free(c);
-	focus(NULL);
-	updateclientlist();
-	arrange(m);
+
+	if (!s) {
+		arrange(m);
+		focus(NULL);
+		updateclientlist();
+	}
 }
 
 void
@@ -2513,6 +2604,136 @@ view(const Arg *arg)
 	arrange(selmon);
 }
 
+pid_t
+winpid(Window w)
+{
+
+	pid_t result = 0;
+
+#ifdef __linux__
+	xcb_res_client_id_spec_t spec = {0};
+	spec.client = w;
+	spec.mask = XCB_RES_CLIENT_ID_MASK_LOCAL_CLIENT_PID;
+
+	xcb_generic_error_t *e = NULL;
+	xcb_res_query_client_ids_cookie_t c = xcb_res_query_client_ids(xcon, 1, &spec);
+	xcb_res_query_client_ids_reply_t *r = xcb_res_query_client_ids_reply(xcon, c, &e);
+
+	if (!r)
+		return (pid_t)0;
+
+	xcb_res_client_id_value_iterator_t i = xcb_res_query_client_ids_ids_iterator(r);
+	for (; i.rem; xcb_res_client_id_value_next(&i)) {
+		spec = i.data->spec;
+		if (spec.mask & XCB_RES_CLIENT_ID_MASK_LOCAL_CLIENT_PID) {
+			uint32_t *t = xcb_res_client_id_value_value(i.data);
+			result = *t;
+			break;
+		}
+	}
+
+	free(r);
+
+	if (result == (pid_t)-1)
+		result = 0;
+
+#endif /* __linux__ */
+
+#ifdef __OpenBSD__
+        Atom type;
+        int format;
+        unsigned long len, bytes;
+        unsigned char *prop;
+        pid_t ret;
+
+        if (XGetWindowProperty(dpy, w, XInternAtom(dpy, "_NET_WM_PID", 0), 0, 1, False, AnyPropertyType, &type, &format, &len, &bytes, &prop) != Success || !prop)
+               return 0;
+
+        ret = *(pid_t*)prop;
+        XFree(prop);
+        result = ret;
+
+#endif /* __OpenBSD__ */
+	return result;
+}
+
+pid_t
+getparentprocess(pid_t p)
+{
+	unsigned int v = 0;
+
+#ifdef __linux__
+	FILE *f;
+	char buf[256];
+	snprintf(buf, sizeof(buf) - 1, "/proc/%u/stat", (unsigned)p);
+
+	if (!(f = fopen(buf, "r")))
+		return 0;
+
+	fscanf(f, "%*u %*s %*c %u", &v);
+	fclose(f);
+#endif /* __linux__*/
+
+#ifdef __OpenBSD__
+	int n;
+	kvm_t *kd;
+	struct kinfo_proc *kp;
+
+	kd = kvm_openfiles(NULL, NULL, NULL, KVM_NO_FILES, NULL);
+	if (!kd)
+		return 0;
+
+	kp = kvm_getprocs(kd, KERN_PROC_PID, p, sizeof(*kp), &n);
+	v = kp->p_ppid;
+#endif /* __OpenBSD__ */
+
+	return (pid_t)v;
+}
+
+int
+isdescprocess(pid_t p, pid_t c)
+{
+	while (p != c && c != 0)
+		c = getparentprocess(c);
+
+	return (int)c;
+}
+
+Client *
+termforwin(const Client *w)
+{
+	Client *c;
+	Monitor *m;
+
+	if (!w->pid || w->isterminal)
+		return NULL;
+
+	for (m = mons; m; m = m->next) {
+		for (c = m->clients; c; c = c->next) {
+			if (c->isterminal && !c->swallowing && c->pid && isdescprocess(c->pid, w->pid))
+				return c;
+		}
+	}
+
+	return NULL;
+}
+
+Client *
+swallowingclient(Window w)
+{
+	Client *c;
+	Monitor *m;
+
+	for (m = mons; m; m = m->next) {
+		for (c = m->clients; c; c = c->next) {
+			if (c->swallowing && c->swallowing->win == w)
+				return c;
+		}
+	}
+
+	return NULL;
+}
+
 Client *
 wintoclient(Window w)
 {
@@ -2639,10 +2860,12 @@ main(int argc, char *argv[])
 		fputs("warning: no locale support\n", stderr);
 	if (!(dpy = XOpenDisplay(NULL)))
 		die("dwm: cannot open display");
+	if (!(xcon = XGetXCBConnection(dpy)))
+		die("dwm: cannot get xcb connection\n");
 	checkotherwm();
 	setup();
 #ifdef __OpenBSD__
-	if (pledge("stdio rpath proc exec", NULL) == -1)
+	if (pledge("stdio rpath proc exec ps", NULL) == -1)
 		die("pledge");
 #endif /* __OpenBSD__ */
 	scan();
diff --git a/patches/behavior/dwm-swallow-6.3.diff b/patches/behavior/dwm-swallow-6.3.diff
new file mode 100644
index 0000000..47586a0
--- /dev/null
+++ b/patches/behavior/dwm-swallow-6.3.diff
@@ -0,0 +1,412 @@
+From 0cf9a007511f7dfd7dd94171b172562ebac9b6d5 Mon Sep 17 00:00:00 2001
+From: Tom Schwindl <schwindl@posteo.de>
+Date: Sat, 10 Sep 2022 12:51:09 +0200
+Subject: [PATCH] 6.3 swallow patch
+
+---
+ config.def.h |   9 +-
+ config.mk    |   3 +-
+ dwm.c        | 235 +++++++++++++++++++++++++++++++++++++++++++++++++--
+ 3 files changed, 237 insertions(+), 10 deletions(-)
+
+diff --git a/config.def.h b/config.def.h
+index 061ad662f82a..0b2b8ffd30d5 100644
+--- a/config.def.h
++++ b/config.def.h
+@@ -3,6 +3,7 @@
+ /* appearance */
+ static const unsigned int borderpx  = 1;        /* border pixel of windows */
+ static const unsigned int snap      = 32;       /* snap pixel */
++static const int swallowfloating    = 0;        /* 1 means swallow floating windows by default */
+ static const int showbar            = 1;        /* 0 means no bar */
+ static const int topbar             = 1;        /* 0 means bottom bar */
+ static const char *fonts[]          = { "monospace:size=10" };
+@@ -26,9 +27,11 @@ static const Rule rules[] = {
+ 	 *	WM_CLASS(STRING) = instance, class
+ 	 *	WM_NAME(STRING) = title
+ 	 */
+-	/* class      instance    title       tags mask     isfloating   monitor */
+-	{ "Gimp",     NULL,       NULL,       0,            1,           -1 },
+-	{ "Firefox",  NULL,       NULL,       1 << 8,       0,           -1 },
++	/* class     instance  title           tags mask  isfloating  isterminal  noswallow  monitor */
++	{ "Gimp",    NULL,     NULL,           0,         1,          0,           0,        -1 },
++	{ "Firefox", NULL,     NULL,           1 << 8,    0,          0,          -1,        -1 },
++	{ "St",      NULL,     NULL,           0,         0,          1,           0,        -1 },
++	{ NULL,      NULL,     "Event Tester", 0,         0,          0,           1,        -1 }, /* xev */
+ };
+ 
+ /* layout(s) */
+diff --git a/config.mk b/config.mk
+index 81c493ef4aff..52d1ebf30bec 100644
+--- a/config.mk
++++ b/config.mk
+@@ -20,10 +20,11 @@ FREETYPEINC = /usr/include/freetype2
+ # OpenBSD (uncomment)
+ #FREETYPEINC = ${X11INC}/freetype2
+ #MANPREFIX = ${PREFIX}/man
++#KVMLIB = -lkvm
+ 
+ # includes and libs
+ INCS = -I${X11INC} -I${FREETYPEINC}
+-LIBS = -L${X11LIB} -lX11 ${XINERAMALIBS} ${FREETYPELIBS}
++LIBS = -L${X11LIB} -lX11 ${XINERAMALIBS} ${FREETYPELIBS} -lX11-xcb -lxcb -lxcb-res ${KVMLIB}
+ 
+ # flags
+ CPPFLAGS = -D_DEFAULT_SOURCE -D_BSD_SOURCE -D_POSIX_C_SOURCE=200809L -DVERSION=\"${VERSION}\" ${XINERAMAFLAGS}
+diff --git a/dwm.c b/dwm.c
+index e5efb6a22806..e68294b6b679 100644
+--- a/dwm.c
++++ b/dwm.c
+@@ -40,6 +40,12 @@
+ #include <X11/extensions/Xinerama.h>
+ #endif /* XINERAMA */
+ #include <X11/Xft/Xft.h>
++#include <X11/Xlib-xcb.h>
++#include <xcb/res.h>
++#ifdef __OpenBSD__
++#include <sys/sysctl.h>
++#include <kvm.h>
++#endif /* __OpenBSD */
+ 
+ #include "drw.h"
+ #include "util.h"
+@@ -92,9 +98,11 @@ struct Client {
+ 	int basew, baseh, incw, inch, maxw, maxh, minw, minh, hintsvalid;
+ 	int bw, oldbw;
+ 	unsigned int tags;
+-	int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen;
++	int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen, isterminal, noswallow;
++	pid_t pid;
+ 	Client *next;
+ 	Client *snext;
++	Client *swallowing;
+ 	Monitor *mon;
+ 	Window win;
+ };
+@@ -138,6 +146,8 @@ typedef struct {
+ 	const char *title;
+ 	unsigned int tags;
+ 	int isfloating;
++	int isterminal;
++	int noswallow;
+ 	int monitor;
+ } Rule;
+ 
+@@ -235,6 +245,12 @@ static int xerrordummy(Display *dpy, XErrorEvent *ee);
+ static int xerrorstart(Display *dpy, XErrorEvent *ee);
+ static void zoom(const Arg *arg);
+ 
++static pid_t getparentprocess(pid_t p);
++static int isdescprocess(pid_t p, pid_t c);
++static Client *swallowingclient(Window w);
++static Client *termforwin(const Client *c);
++static pid_t winpid(Window w);
++
+ /* variables */
+ static const char broken[] = "broken";
+ static char stext[256];
+@@ -269,6 +285,8 @@ static Drw *drw;
+ static Monitor *mons, *selmon;
+ static Window root, wmcheckwin;
+ 
++static xcb_connection_t *xcon;
++
+ /* configuration, allows nested code to access above variables */
+ #include "config.h"
+ 
+@@ -298,6 +316,8 @@ applyrules(Client *c)
+ 		&& (!r->class || strstr(class, r->class))
+ 		&& (!r->instance || strstr(instance, r->instance)))
+ 		{
++			c->isterminal = r->isterminal;
++			c->noswallow  = r->noswallow;
+ 			c->isfloating = r->isfloating;
+ 			c->tags |= r->tags;
+ 			for (m = mons; m && m->num != r->monitor; m = m->next);
+@@ -416,6 +436,53 @@ attachstack(Client *c)
+ 	c->mon->stack = c;
+ }
+ 
++void
++swallow(Client *p, Client *c)
++{
++
++	if (c->noswallow || c->isterminal)
++		return;
++	if (c->noswallow && !swallowfloating && c->isfloating)
++		return;
++
++	detach(c);
++	detachstack(c);
++
++	setclientstate(c, WithdrawnState);
++	XUnmapWindow(dpy, p->win);
++
++	p->swallowing = c;
++	c->mon = p->mon;
++
++	Window w = p->win;
++	p->win = c->win;
++	c->win = w;
++	updatetitle(p);
++	XMoveResizeWindow(dpy, p->win, p->x, p->y, p->w, p->h);
++	arrange(p->mon);
++	configure(p);
++	updateclientlist();
++}
++
++void
++unswallow(Client *c)
++{
++	c->win = c->swallowing->win;
++
++	free(c->swallowing);
++	c->swallowing = NULL;
++
++	/* unfullscreen the client */
++	setfullscreen(c, 0);
++	updatetitle(c);
++	arrange(c->mon);
++	XMapWindow(dpy, c->win);
++	XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
++	setclientstate(c, NormalState);
++	focus(NULL);
++	arrange(c->mon);
++}
++
+ void
+ buttonpress(XEvent *e)
+ {
+@@ -656,6 +723,9 @@ destroynotify(XEvent *e)
+ 
+ 	if ((c = wintoclient(ev->window)))
+ 		unmanage(c, 1);
++
++	else if ((c = swallowingclient(ev->window)))
++		unmanage(c->swallowing, 1);
+ }
+ 
+ void
+@@ -1022,12 +1092,13 @@ killclient(const Arg *arg)
+ void
+ manage(Window w, XWindowAttributes *wa)
+ {
+-	Client *c, *t = NULL;
++	Client *c, *t = NULL, *term = NULL;
+ 	Window trans = None;
+ 	XWindowChanges wc;
+ 
+ 	c = ecalloc(1, sizeof(Client));
+ 	c->win = w;
++	c->pid = winpid(w);
+ 	/* geometry */
+ 	c->x = c->oldx = wa->x;
+ 	c->y = c->oldy = wa->y;
+@@ -1042,6 +1113,7 @@ manage(Window w, XWindowAttributes *wa)
+ 	} else {
+ 		c->mon = selmon;
+ 		applyrules(c);
++		term = termforwin(c);
+ 	}
+ 
+ 	if (c->x + WIDTH(c) > c->mon->wx + c->mon->ww)
+@@ -1076,6 +1148,8 @@ manage(Window w, XWindowAttributes *wa)
+ 	c->mon->sel = c;
+ 	arrange(c->mon);
+ 	XMapWindow(dpy, c->win);
++	if (term)
++		swallow(term, c);
+ 	focus(NULL);
+ }
+ 
+@@ -1763,6 +1837,20 @@ unmanage(Client *c, int destroyed)
+ 	Monitor *m = c->mon;
+ 	XWindowChanges wc;
+ 
++	if (c->swallowing) {
++		unswallow(c);
++		return;
++	}
++
++	Client *s = swallowingclient(c->win);
++	if (s) {
++		free(s->swallowing);
++		s->swallowing = NULL;
++		arrange(m);
++		focus(NULL);
++		return;
++	}
++
+ 	detach(c);
+ 	detachstack(c);
+ 	if (!destroyed) {
+@@ -1778,9 +1866,12 @@ unmanage(Client *c, int destroyed)
+ 		XUngrabServer(dpy);
+ 	}
+ 	free(c);
+-	focus(NULL);
+-	updateclientlist();
+-	arrange(m);
++
++	if (!s) {
++		arrange(m);
++		focus(NULL);
++		updateclientlist();
++	}
+ }
+ 
+ void
+@@ -2044,6 +2135,136 @@ view(const Arg *arg)
+ 	arrange(selmon);
+ }
+ 
++pid_t
++winpid(Window w)
++{
++
++	pid_t result = 0;
++
++#ifdef __linux__
++	xcb_res_client_id_spec_t spec = {0};
++	spec.client = w;
++	spec.mask = XCB_RES_CLIENT_ID_MASK_LOCAL_CLIENT_PID;
++
++	xcb_generic_error_t *e = NULL;
++	xcb_res_query_client_ids_cookie_t c = xcb_res_query_client_ids(xcon, 1, &spec);
++	xcb_res_query_client_ids_reply_t *r = xcb_res_query_client_ids_reply(xcon, c, &e);
++
++	if (!r)
++		return (pid_t)0;
++
++	xcb_res_client_id_value_iterator_t i = xcb_res_query_client_ids_ids_iterator(r);
++	for (; i.rem; xcb_res_client_id_value_next(&i)) {
++		spec = i.data->spec;
++		if (spec.mask & XCB_RES_CLIENT_ID_MASK_LOCAL_CLIENT_PID) {
++			uint32_t *t = xcb_res_client_id_value_value(i.data);
++			result = *t;
++			break;
++		}
++	}
++
++	free(r);
++
++	if (result == (pid_t)-1)
++		result = 0;
++
++#endif /* __linux__ */
++
++#ifdef __OpenBSD__
++        Atom type;
++        int format;
++        unsigned long len, bytes;
++        unsigned char *prop;
++        pid_t ret;
++
++        if (XGetWindowProperty(dpy, w, XInternAtom(dpy, "_NET_WM_PID", 0), 0, 1, False, AnyPropertyType, &type, &format, &len, &bytes, &prop) != Success || !prop)
++               return 0;
++
++        ret = *(pid_t*)prop;
++        XFree(prop);
++        result = ret;
++
++#endif /* __OpenBSD__ */
++	return result;
++}
++
++pid_t
++getparentprocess(pid_t p)
++{
++	unsigned int v = 0;
++
++#ifdef __linux__
++	FILE *f;
++	char buf[256];
++	snprintf(buf, sizeof(buf) - 1, "/proc/%u/stat", (unsigned)p);
++
++	if (!(f = fopen(buf, "r")))
++		return 0;
++
++	fscanf(f, "%*u %*s %*c %u", &v);
++	fclose(f);
++#endif /* __linux__*/
++
++#ifdef __OpenBSD__
++	int n;
++	kvm_t *kd;
++	struct kinfo_proc *kp;
++
++	kd = kvm_openfiles(NULL, NULL, NULL, KVM_NO_FILES, NULL);
++	if (!kd)
++		return 0;
++
++	kp = kvm_getprocs(kd, KERN_PROC_PID, p, sizeof(*kp), &n);
++	v = kp->p_ppid;
++#endif /* __OpenBSD__ */
++
++	return (pid_t)v;
++}
++
++int
++isdescprocess(pid_t p, pid_t c)
++{
++	while (p != c && c != 0)
++		c = getparentprocess(c);
++
++	return (int)c;
++}
++
++Client *
++termforwin(const Client *w)
++{
++	Client *c;
++	Monitor *m;
++
++	if (!w->pid || w->isterminal)
++		return NULL;
++
++	for (m = mons; m; m = m->next) {
++		for (c = m->clients; c; c = c->next) {
++			if (c->isterminal && !c->swallowing && c->pid && isdescprocess(c->pid, w->pid))
++				return c;
++		}
++	}
++
++	return NULL;
++}
++
++Client *
++swallowingclient(Window w)
++{
++	Client *c;
++	Monitor *m;
++
++	for (m = mons; m; m = m->next) {
++		for (c = m->clients; c; c = c->next) {
++			if (c->swallowing && c->swallowing->win == w)
++				return c;
++		}
++	}
++
++	return NULL;
++}
++
+ Client *
+ wintoclient(Window w)
+ {
+@@ -2133,10 +2354,12 @@ main(int argc, char *argv[])
+ 		fputs("warning: no locale support\n", stderr);
+ 	if (!(dpy = XOpenDisplay(NULL)))
+ 		die("dwm: cannot open display");
++	if (!(xcon = XGetXCBConnection(dpy)))
++		die("dwm: cannot get xcb connection\n");
+ 	checkotherwm();
+ 	setup();
+ #ifdef __OpenBSD__
+-	if (pledge("stdio rpath proc exec", NULL) == -1)
++	if (pledge("stdio rpath proc exec ps", NULL) == -1)
+ 		die("pledge");
+ #endif /* __OpenBSD__ */
+ 	scan();
+-- 
+2.37.2
+