Properly initialize list elements

Author: oxpa

src/ngx_http_lua_control.c

@@ -280,6 +280,7 @@ ngx_http_lua_ngx_redirect(lua_State *L)
 
     h->value.len = len;
     h->value.data = uri;
+    h->next = NULL;
     ngx_str_set(&h->key, "Location");
 
     r->headers_out.status = rc;

src/ngx_http_lua_headers_in.c

@@ -280,6 +280,7 @@ ngx_http_set_header_helper(ngx_http_request_t *r, ngx_http_lua_header_val_t *hv,
 
     h->key = hv->key;
     h->value = *value;
+    h->next = NULL;
 
     h->lowcase_key = ngx_pnalloc(r->pool, h->key.len);
     if (h->lowcase_key == NULL) {

src/ngx_http_lua_headers_out.c

@@ -229,6 +229,7 @@ ngx_http_set_header_helper(ngx_http_request_t *r, ngx_http_lua_header_val_t *hv,
 
     h->key = hv->key;
     h->value = *value;
+    h->next = NULL;
 
     h->lowcase_key = ngx_pnalloc(r->pool, h->key.len);
     if (h->lowcase_key == NULL) {
@@ -444,6 +445,7 @@ ngx_http_set_builtin_multi_header(ngx_http_request_t *r,
     }
 
     ho->key = hv->key;
+    ho->next = NULL;
     *ph = ho;
 
     return NGX_OK;