[master] 873c615be Add a function to dump just a subtree

[Poul-Henning Kamp]

commit 873c615be1b07d15e27cba60f9200b90598af644
Author: Poul-Henning Kamp <phk at FreeBSD.org>
Date:   Wed May 22 08:39:17 2019 +0000

    Add a function to dump just a subtree

diff --git a/include/vjsn.h b/include/vjsn.h
index ebd4cafc5..5051a6cfa 100644
--- a/include/vjsn.h
+++ b/include/vjsn.h
@@ -58,4 +58,5 @@ struct vjsn *vjsn_parse_end(const char *, const char *, const char **);
 struct vjsn *vjsn_parse(const char *, const char **);
 void vjsn_delete(struct vjsn **);
 void vjsn_dump(const struct vjsn *js, FILE *fo);
+void vjsn_dump_val(const struct vjsn_val *jsv, FILE *fo);
 struct vjsn_val *vjsn_child(const struct vjsn_val *, const char *);
diff --git a/lib/libvarnish/vjsn.c b/lib/libvarnish/vjsn.c
index 653fb340d..d9c1a1e53 100644
--- a/lib/libvarnish/vjsn.c
+++ b/lib/libvarnish/vjsn.c
@@ -465,6 +465,7 @@ vjsn_dump_i(const struct vjsn_val *jsv, FILE *fo, int indent)
 {
 	struct vjsn_val *jsve;
 
+	CHECK_OBJ_NOTNULL(jsv, VJSN_VAL_MAGIC);
 	printf("%*s", indent, "");
 	if (jsv->name != NULL)
 		printf("[\"%s\"]: ", jsv->name);
@@ -482,6 +483,13 @@ vjsn_dump_i(const struct vjsn_val *jsv, FILE *fo, int indent)
 		vjsn_dump_i(jsve, fo, indent + 2);
 }
 
+void
+vjsn_dump_val(const struct vjsn_val *jsv, FILE *fo)
+{
+	CHECK_OBJ_NOTNULL(jsv, VJSN_VAL_MAGIC);
+	vjsn_dump_i(jsv, fo, 0);
+}
+
 void
 vjsn_dump(const struct vjsn *js, FILE *fo)
 {