pidgin/pidgin

Implement mitigation for GHSL-2021-045
release-2.x.y
2021-02-07, Gary Kramlich
fb2056ce3c58
Implement mitigation for GHSL-2021-045

This add a static inline version of `g_memdup2` if the version of glib we're
compiling against doesn't have the function.

GHSL-2021-045 was originally reported to glib at
https://gitlab.gnome.org/GNOME/glib/-/issues/2319.

More information about the entire situation can be found on the gnome
desktop-devel-list at
https://mail.gnome.org/archives/desktop-devel-list/2021-February/msg00000.html

Testing Done:
Compiled and ran tests locally.

Reviewed at https://reviews.imfreedom.org/r/483/
/** @page connection-signals Connection Signals
@signals
@signal signing-on
@signal signed-on
@signal autojoin
@signal signing-off
@signal signed-off
@signal connection-error
@endsignals
@see connection.h
<hr>
@signaldef signing-on
@signalproto
void (*signing_on)(PurpleConnection *gc);
@endsignalproto
@signaldesc
Emitted when a connection is about to sign on.
@param gc The connection that is about to sign on.
@endsignaldef
@signaldef signed-on
@signalproto
void (*signed_on)(PurpleConnection *gc);
@endsignalproto
@signaldesc
Emitted when a connection has signed on.
@param gc The connection that has signed on.
@endsignaldef
@signaldef autojoin
@signalproto
gboolean (*autojoin)(PurpleConnection *gc);
@endsignalproto
@signaldesc
Emitted when a connection has signed on, after the signed-on signal, to
signal UIs to autojoin chats if they wish. UIs should connect to this
with @c PURPLE_SIGNAL_PRIORITY_HIGHEST to allow plugins to block this
signal before the UI sees it and then re-emit it later.
@param gc The connection that has signed on.
@return @c TRUE if the signal was handled or @c FALSE otherwise. In
practice, the return value is irrelevant, as it really only
exists so plugins can block the UI's autojoin.
@since 2.7.0
@endsignaldef
@signaldef signing-off
@signalproto
void (*signing_off)(PurpleConnection *gc);
@endsignalproto
@signaldesc
Emitted when a connection is about to sign off.
@param gc The connection that is about to sign off.
@endsignaldef
@signaldef signed-off
@signalproto
void (*signed_off)(PurpleConnection *gc);
@endsignalproto
@signaldesc
Emitted when a connection has signed off.
@param gc The connection that has signed off.
@endsignaldef
@signaldef connection-error
@signalproto
void (*connection_error)(PurpleConnection *gc, PurpleConnectionError err, const gchar *desc)
@endsignalproto
@signaldesc
Emitted when a connection error occurs, before @ref signed-off.
@param gc The connection on which the error has occurred
@param err The error that occurred
@param desc A description of the error, giving more information.
@endsignaldef
*/
// vim: syntax=c.doxygen tw=75 et