http: implement nng_http_next_header

2 files changed, 47 insertions, 0 deletions

diff --git a/src/supplemental/http/http_conn.c b/src/supplemental/http/http_conn.c
index 93068512..6f2ecef6 100644
--- a/src/supplemental/http/http_conn.c
+++ b/src/supplemental/http/http_conn.c
@@ -1372,6 +1372,38 @@ http_get_header(const nni_list *hdrs, const char *key)
 	return (NULL);
 }
 
+static bool
+http_next_header(
+    const nni_list *hdrs, const char **key, const char **val, void **ptr)
+{
+	http_header *h;
+
+	if (*ptr == NULL) {
+		h = nni_list_first(hdrs);
+	} else {
+		h = nni_list_next(hdrs, *ptr);
+	}
+	if (h == NULL) {
+		return (false);
+	}
+
+	*ptr = h;
+	*key = h->name;
+	*val = h->value;
+	return (true);
+}
+
+bool
+nni_http_next_header(
+    nng_http *conn, const char **key, const char **val, void **ptr)
+{
+	if (conn->client) {
+		return (http_next_header(&conn->res.data.hdrs, key, val, ptr));
+	} else {
+		return (http_next_header(&conn->req.data.hdrs, key, val, ptr));
+	}
+}
+
 const char *
 nni_http_get_header(nng_http *conn, const char *key)
 {
diff --git a/src/supplemental/http/http_public.c b/src/supplemental/http/http_public.c
index 5c7d8a77..419632fe 100644
--- a/src/supplemental/http/http_public.c
+++ b/src/supplemental/http/http_public.c
@@ -28,6 +28,21 @@ nng_http_get_header(nng_http *conn, const char *key)
 }
 
 nng_err
+nng_http_next_header(
+    nng_http *conn, const char **key, const char **val, void **ptr)
+{
+#ifdef NNG_SUP_HTTP
+	return (nni_http_next_header(conn, key, val, ptr));
+#else
+	NNI_ARG_UNUSED(conn);
+	NNI_ARG_UNUSED(key);
+	NNI_ARG_UNUSED(val);
+	NNI_ARG_UNUSED(ptr);
+	return (NNG_ENOTSUP);
+#endif
+}
+
+nng_err
 nng_http_set_header(nng_http *conn, const char *key, const char *val)
 {
 #ifdef NNG_SUPP_HTTP