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authorJon Santmyer <jon@jonsantmyer.com>2021-01-24 11:07:17 -0500
committerJon Santmyer <jon@jonsantmyer.com>2021-01-24 11:07:17 -0500
commita1692281245bd150397f22be1346b77ebb501832 (patch)
treeb7aa1dd0bc610836898873258fd34157027cb1cd
parentafccac60825f9b270e95426a69b920ec76d3ba2e (diff)
downloaddwm-a1692281245bd150397f22be1346b77ebb501832.tar.gz
dwm-a1692281245bd150397f22be1346b77ebb501832.tar.bz2
dwm-a1692281245bd150397f22be1346b77ebb501832.zip
add swallow patch
-rw-r--r--config.def.h10
-rw-r--r--config.mk3
-rw-r--r--dwm.c237
-rw-r--r--patches/swallow.diff412
4 files changed, 652 insertions, 10 deletions
diff --git a/config.def.h b/config.def.h
index f0b9a4f..a15c4bf 100644
--- a/config.def.h
+++ b/config.def.h
@@ -12,6 +12,7 @@ static const unsigned int systraypinning = 0; /* 0: sloppy systray follows sel
static const unsigned int systrayspacing = 2; /* systray spacing */
static const int systraypinningfailfirst = 1; /* 1: if pinning fails, display systray on the first monitor, False: display systray on the last monitor*/
static const int showsystray = 1; /* 0 means no systray */
+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 */
@@ -51,9 +52,12 @@ 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 },
+ { "Alacritty",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 7084c33..ff9e508 100644
--- a/config.mk
+++ b/config.mk
@@ -19,10 +19,11 @@ FREETYPELIBS = -lfontconfig -lXft
FREETYPEINC = /usr/include/freetype2
# OpenBSD (uncomment)
#FREETYPEINC = ${X11INC}/freetype2
+#KVMLIB = -lkvm
# includes and libs
INCS = -I${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 bce54e6..70920e6 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"
@@ -112,9 +118,11 @@ struct Client {
int basew, baseh, incw, inch, maxw, maxh, minw, minh;
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;
};
@@ -168,6 +176,8 @@ typedef struct {
const char *title;
unsigned int tags;
int isfloating;
+ int isterminal;
+ int noswallow;
int monitor;
} Rule;
@@ -285,6 +295,12 @@ 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 Systray *systray = NULL;
static const char broken[] = "broken";
@@ -322,6 +338,8 @@ 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"
@@ -380,6 +398,8 @@ 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);
@@ -498,6 +518,53 @@ attachstack(Client *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)
{
unsigned int i, x, click;
@@ -551,6 +618,9 @@ buttonpress(XEvent *e)
XAllowEvents(dpy, ReplayPointer, CurrentTime);
click = ClkClientWin;
}
+ else if ((c = swallowingclient(ev->window)))
+ unmanage(c->swallowing, 1);
+
for (i = 0; i < LENGTH(buttons); i++)
if (click == buttons[i].click && buttons[i].func && buttons[i].button == ev->button
&& CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state)){
@@ -827,6 +897,8 @@ destroynotify(XEvent *e)
resizebarwin(selmon);
updatesystray();
}
+ else if ((c = swallowingclient(ev->window)))
+ unmanage(c->swallowing, 1);
}
void
@@ -1329,12 +1401,13 @@ 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;
@@ -1349,6 +1422,7 @@ manage(Window w, XWindowAttributes *wa)
} else {
c->mon = selmon;
applyrules(c);
+ term = termforwin(c);
}
if (c->x + WIDTH(c) > c->mon->mx + c->mon->mw)
@@ -1385,6 +1459,8 @@ manage(Window w, XWindowAttributes *wa)
c->mon->sel = c;
arrange(c->mon);
XMapWindow(dpy, c->win);
+ if (term)
+ swallow(term, c);
focus(NULL);
}
@@ -2184,6 +2260,20 @@ 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) {
@@ -2198,9 +2288,12 @@ unmanage(Client *c, int destroyed)
XUngrabServer(dpy);
}
free(c);
- focus(NULL);
- updateclientlist();
- arrange(m);
+
+ if (!s) {
+ arrange(m);
+ focus(NULL);
+ updateclientlist();
+ }
}
void
@@ -2612,6 +2705,136 @@ 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)
{
@@ -2729,11 +2952,13 @@ 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();
autostart_exec();
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/swallow.diff b/patches/swallow.diff
new file mode 100644
index 0000000..6bc0a1f
--- /dev/null
+++ b/patches/swallow.diff
@@ -0,0 +1,412 @@
+From f0cdf40e0a7126838d051eb84d84b91421b771d6 Mon Sep 17 00:00:00 2001
+From: 0x1bi <ben@0x1bi.net>
+Date: Fri, 11 Dec 2020 10:16:25 -0500
+Subject: [PATCH] fix swallow for openbsd
+
+---
+ 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 1c0b587..fe51476 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 7084c33..ff9e508 100644
+--- a/config.mk
++++ b/config.mk
+@@ -19,10 +19,11 @@ FREETYPELIBS = -lfontconfig -lXft
+ FREETYPEINC = /usr/include/freetype2
+ # OpenBSD (uncomment)
+ #FREETYPEINC = ${X11INC}/freetype2
++#KVMLIB = -lkvm
+
+ # includes and libs
+ INCS = -I${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 664c527..0b20086 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;
+ 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);
+@@ -414,6 +434,53 @@ 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)
+ {
+@@ -653,6 +720,9 @@ destroynotify(XEvent *e)
+
+ if ((c = wintoclient(ev->window)))
+ unmanage(c, 1);
++
++ else if ((c = swallowingclient(ev->window)))
++ unmanage(c->swallowing, 1);
+ }
+
+ void
+@@ -1018,12 +1088,13 @@ 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;
+@@ -1038,6 +1109,7 @@ manage(Window w, XWindowAttributes *wa)
+ } else {
+ c->mon = selmon;
+ applyrules(c);
++ term = termforwin(c);
+ }
+
+ if (c->x + WIDTH(c) > c->mon->mx + c->mon->mw)
+@@ -1074,6 +1146,8 @@ manage(Window w, XWindowAttributes *wa)
+ c->mon->sel = c;
+ arrange(c->mon);
+ XMapWindow(dpy, c->win);
++ if (term)
++ swallow(term, c);
+ focus(NULL);
+ }
+
+@@ -1768,6 +1842,20 @@ 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) {
+@@ -1782,9 +1870,12 @@ unmanage(Client *c, int destroyed)
+ XUngrabServer(dpy);
+ }
+ free(c);
+- focus(NULL);
+- updateclientlist();
+- arrange(m);
++
++ if (!s) {
++ arrange(m);
++ focus(NULL);
++ updateclientlist();
++ }
+ }
+
+ void
+@@ -2047,6 +2138,136 @@ 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)
+ {
+@@ -2138,10 +2359,12 @@ 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();
+--
+2.28.0
+