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c3dd6a829b
commit 244fa852 (and a9aa0d8) tried to fix overflow by checking the number of items returned. however this is not sufficient since the format may be lower than 32 bits. to reproduce the crash, i used the reproducer given in commit 244fa85 but changed the XChangeProperty line to the following to set the property to a 1 element 16 bit item: short si = 1; XChangeProperty(d, w, net_wm_state, XA_ATOM, 16, PropModeReplace, (unsigned char *)&si, 1); this client reliably crashes dwm under ASAN since dwm is trying to read a 32 bit value from a 16 bit one. fix it by checking for format == 32 as well. also change the access type from Atom to long, on my machine Atom is typedef-ed to long already but that may not be true everywere. the XGetWindowProperty manpage says format == 32 is returned as `long` so use `long` directly. (N.B: it also might be worth checking if the returned type is XA_ATOM as well, but i wasn't able to cause any crashes by setting different types so i'm leaving it out for now.)
dwm - dynamic window manager
============================
dwm is an extremely fast, small, and dynamic window manager for X.
Requirements
------------
In order to build dwm you need the Xlib header files.
Installation
------------
Edit config.mk to match your local setup (dwm is installed into
the /usr/local namespace by default).
Afterwards enter the following command to build and install dwm (if
necessary as root):
make clean install
Running dwm
-----------
Add the following line to your .xinitrc to start dwm using startx:
exec dwm
In order to connect dwm to a specific display, make sure that
the DISPLAY environment variable is set correctly, e.g.:
DISPLAY=foo.bar:1 exec dwm
(This will start dwm on display :1 of the host foo.bar.)
In order to display status info in the bar, you can do something
like this in your .xinitrc:
while xsetroot -name "`date` `uptime | sed 's/.*,//'`"
do
sleep 1
done &
exec dwm
Configuration
-------------
The configuration of dwm is done by creating a custom config.h
and (re)compiling the source code.