Fix formatting bug in print filter function; skip NULL filters (which would be an invalid filter anyways...)

1 files changed, 8 insertions, 2 deletions

diff --git a/helper.c b/helper.c
index 8dec6e4..c938783 100644
--- a/helper.c
+++ b/helper.c
@@ -88,6 +88,8 @@ static void helper_printavaInt(struct AttributeValueAssertion* a,const char* rel
 	printf("[%.*s %s", (int)a->desc.l, a->desc.s, rel);
 	if (a->value.l != 0 && a->value.s != NULL) {
 		printf(" %.*s]", (int)a->value.l,a->value.s);
+	} else {
+		putchar(']');
 	}
 }
 
@@ -111,17 +113,20 @@ void helper_printal(struct AttributeDescriptionList* a)
 
 static void helper_printfilterInt(struct Filter* f)
 {
+	if (f == NULL) {
+		printf("(nullfilter)");
+		return;
+	}
 	switch (f->type) {
 	case AND:
 		printf("&(");
 mergesub:
 		helper_printfilterInt(f->x);
-		printf(")");
+		putchar(')');
 		break;
 	case OR:
 		printf("|(");
 		goto mergesub;
-		break;
 	case NOT:
 		printf("!(");
 		goto mergesub;
@@ -162,6 +167,7 @@ mergesub:
 		helper_printavaInt(&f->ava,"<=");
 		break;
 	case PRESENT:
+		f->ava.value.l = 0;
 		helper_printavaInt(&f->ava,"\\exist");
 		break;
 	case APPROX: