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logind: fix crash when shutdown is not issued from a tty

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It's possible that sd_bus_creds_get_tty() fails and thus
scheduled_shutdown_tty is NULL in method_schedule_shutdown().

Fix logind_wall_tty_filter() to get along with that, by showing the message on
all TTYs, instead of crashing in strcmp().

https://launchpad.net/bugs/1553040
This commit is contained in:
Martin Pitt
2016-03-23 08:46:58 +01:00
parent b59f0ecd27
commit b4944d2df2
1 changed files with 1 additions and 1 deletions
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2
src/login/logind-utmp.c
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@@ -65,7 +65,7 @@ bool logind_wall_tty_filter(const char *tty, void *userdata) {
assert(m);
if (!startswith(tty, "/dev/"))
if (!startswith(tty, "/dev/") || !m->scheduled_shutdown_tty)
return true;
return !streq(tty + 5, m->scheduled_shutdown_tty);