MINOR: vars: make get_vars() allow the session to be null

In order to support manipulating variables from outside a session,
let's make get_vars() not assume that the session is always set.

diff --git a/src/vars.c b/src/vars.c
index 3390d24..3c19ec8 100644 (file)
--- a/src/vars.c
+++ b/src/vars.c
@@ -47,7 +47,7 @@ static inline struct vars *get_vars(struct session *sess, struct stream *strm, e
        case SCOPE_PROC:
                return &global.vars;
        case SCOPE_SESS:
-               return &sess->vars;
+               return sess ? &sess->vars : NULL;
        case SCOPE_CHECK: {
                        struct check *check = objt_check(sess->origin);