Hi,
dwm 6.1-3 on ArchLinux sets WM_NAME hint on one of its windows to:
"dwm\0"
(with \0 being a null byte). Not certain of this, but it's what xwininfo
reports:
$ xwininfo -root -all
Root window id: 0x126 (the root window) " X 62% | us | 59°C |
0.31 | 3725MB | ac 100% | Dec 26 12:42 "
Parent window id: 0x0 (none)
42 children:
...
0xa0001e "dwm^@": () 1x1+0+0 +0+0
0xa0000d (has no name): ("dwm" "dwm") 2560x19+0+0 +0+0
...
(^@ is null character in caret notation.)
This makes a particular program that uses libwnck [1] fail after:
Wnck-WARNING **: Property _NET_WM_NAME contained invalid UTF-8
in this code [2] because the returned string contains a '\0' and the
documentation for g_utf8_validate() [3] explicitly states that when
string length is provided, no nul bytes are allowed.
Maybe libwnck's atom string handling should be more robust, but
since no other window ever seems to do this, I dare ask:
*Why* does dwm set the title on one of its windows to "dwm\0" ?
[1]: https://developer.gnome.org/libwnck/3.24/
[2]:
https://github.com/GNOME/libwnck/blob/4626e0290a918900da9e29b730c672950daa52db/libwnck/xutils.c#L383-L416
[3]:
https://developer.gnome.org/glib/stable/glib-Unicode-Manipulation.html#g-utf8-validate
