Fix a few crashes and leaks when cloning C strings.

* alloc.c, lisp.h (dupstring): New function.
* gtkutil.c (xg_get_font):
* term.c (tty_default_color_capabilities):
* xsettings.c (store_monospaced_changed)
(store_font_name_changed, parse_settings)
(read_and_apply_settings, init_gsettings, init_gconf): Use it.
This avoids some unlikely crashes due to accessing freed storage,
and avoids some minor memory leaks in the more-typical case.

1 files changed, 12 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index d2eeab33e4f..704ac68b67e 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,15 @@
+2014-02-28  Paul Eggert  <eggert@penguin.cs.ucla.edu>
+
+        Fix a few crashes and leaks when cloning C strings.
+        * alloc.c, lisp.h (dupstring): New function.
+        * gtkutil.c (xg_get_font):
+        * term.c (tty_default_color_capabilities):
+        * xsettings.c (store_monospaced_changed)
+        (store_font_name_changed, parse_settings)
+        (read_and_apply_settings, init_gsettings, init_gconf): Use it.
+        This avoids some unlikely crashes due to accessing freed storage,
+        and avoids some minor memory leaks in the more-typical case.
+
 2014-02-28  Martin Rudalics  <rudalics@gmx.at>
 
         * xdisp.c (note_mode_line_or_margin_highlight): Don't show drag