A null set of macros seems reasonable, so tolerate it.
Signed-off-by: Ben Pfaff <b...@ovn.org>
---
ovn/lib/expr.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/ovn/lib/expr.c b/ovn/lib/expr.c
index cb61b5d..050e694 100644
--- a/ovn/lib/expr.c
+++ b/ovn/lib/expr.c
@@ -735,7 +735,9 @@ parse_macros(struct expr_context *ctx, struct
expr_constant_set *cs,
size_t *allocated_values)
{
struct expr_constant_set *addr_set
- = shash_find_data(ctx->macros, ctx->lexer->token.s);
+ = (ctx->macros
+ ? shash_find_data(ctx->macros, ctx->lexer->token.s)
+ : NULL);
if (!addr_set) {
expr_syntax_error(ctx, "expecting address set name.");
return false;
--
2.1.3
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