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swallow: upgrading to latest version with OpenBSD support

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This commit is contained in:
bakkeby 2020-09-11 17:21:38 +02:00
parent 4a35cd2704
commit dc9e57a6b6
2 changed files with 39 additions and 8 deletions
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4
dwm.c
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@ -4394,7 +4394,11 @@ main(int argc, char *argv[])
#endif // COOL_AUTOSTART_PATCH
setup();
#ifdef __OpenBSD__
#if SWALLOW_PATCH
if (pledge("stdio rpath proc exec ps", NULL) == -1)
#else
if (pledge("stdio rpath proc exec", NULL) == -1)
#endif // SWALLOW_PATCH
die("pledge");
#endif /* __OpenBSD__ */
scan();

43
patch/swallow.c
View File

@ -1,5 +1,9 @@
#include <X11/Xlib-xcb.h>
#include <xcb/res.h>
#ifdef __OpenBSD__
#include <sys/sysctl.h>
#include <kvm.h>
#endif /* __OpenBSD__ */
static int scanner;
static xcb_connection_t *xcon;
@ -64,6 +68,7 @@ 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;
@ -89,6 +94,23 @@ winpid(Window w)
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", 1), 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;
}
@ -97,7 +119,7 @@ getparentprocess(pid_t p)
{
unsigned int v = 0;
#if defined(__linux__)
#ifdef __linux__
FILE *f;
char buf[256];
snprintf(buf, sizeof(buf) - 1, "/proc/%u/stat", (unsigned)p);
@ -108,14 +130,19 @@ getparentprocess(pid_t p)
if (fscanf(f, "%*u %*s %*c %u", (unsigned *)&v) != 1)
v = (pid_t)0;
fclose(f);
#elif defined(__FreeBSD__)
struct kinfo_proc *proc = kinfo_getproc(p);
if (!proc)
return (pid_t)0;
#endif /* __linux__ */
#ifdef __OpenBSD__
int n;
kvm_t *kd;
struct kinfo_proc *kp;
v = proc->ki_ppid;
free(proc);
#endif
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;
}