Avoid some core dumps in X session management

Derived from a bug report by Nicolas Richard in:
http://bugs.gnu.org/20191#20
* xsmfns.c (smc_save_yourself_CB): Don't dump core if
invocation-name is not a string.  Initialize user-login-name if it
is not already initialized, and don't dump core if it is not a
string.
(create_client_leader_window): Don't dump core if x-resource-name
and x-resource-class are not both strings.
(x_session_initialize): Don't dump core if x-session-previous-id,
invocation-directory, and invocation-name are not strings.

1 files changed, 14 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 61f2a84a9f9..db3056ce6bd 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,6 +1,20 @@
 2015-03-27  Paul Eggert  <eggert@cs.ucla.edu>
 
+        Avoid some core dumps in X session management
+        Derived from a bug report by Nicolas Richard in:
+        http://bugs.gnu.org/20191#20
+        * xsmfns.c (smc_save_yourself_CB): Don't dump core if
+        invocation-name is not a string.  Initialize user-login-name if it
+        is not already initialized, and don't dump core if it is not a
+        string.
+        (create_client_leader_window): Don't dump core if x-resource-name
+        and x-resource-class are not both strings.
+        (x_session_initialize): Don't dump core if x-session-previous-id,
+        invocation-directory, and invocation-name are not strings.
+
         Port user-login-name initialization to Qnil == 0
+        Derived from a bug report by Nicolas Richard in:
+        http://bugs.gnu.org/20191#20
         * editfns.c (Fuser_login_name, Fuser_real_login_name)
         (syms_of_editfns): Don't rely on all-bits-zero being an Elisp integer,
         as this is no longer true now that Qnil == 0.