Correct setting of _NET_WM_PID
The property _NET_WM_PID is a CARDINAL which per definition has format 32, whatever the size of pid_t may be. CARDINALS (and other format 32 items) must always be passed to Xlib in long's, whatever the size of long may be.
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window.c
4
window.c
@ -189,7 +189,7 @@ void win_open(win_t *win)
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int gmask;
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XSizeHints sizehints;
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XWMHints hints;
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pid_t pid;
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long pid;
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char hostname[256];
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XSetWindowAttributes attrs;
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char res_class[] = RES_CLASS;
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@ -247,7 +247,7 @@ void win_open(win_t *win)
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/* set the _NET_WM_PID */
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pid = getpid();
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XChangeProperty(e->dpy, win->xwin, atoms[ATOM__NET_WM_PID], XA_CARDINAL,
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sizeof(pid_t) * 8, PropModeReplace, (unsigned char *) &pid, 1);
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32, PropModeReplace, (unsigned char *) &pid, 1);
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if (gethostname(hostname, ARRLEN(hostname)) == 0) {
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XTextProperty tp;
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tp.value = (unsigned char *)hostname;
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