commit 2c84a0e101cb08a9554743f0a6f7777b95978026
author Ruslan Ermilov <ru@nginx.com> Fri Jul 07 14:34:21 2017 +0300
committer Ruslan Ermilov <ru@nginx.com> Fri Jul 07 14:34:21 2017 +0300
tree 1e087502e5f1b1bf5566728faa7c4cd2a5599652
parent 946688b5a0fcbb5e5e965723c4c8fc883b8a2dae

Variables: use ngx_http_variable_null_value where appropriate.

src/http/ngx_http_variables.c

diff --git a/src/http/ngx_http_variables.c b/src/http/ngx_http_variables.c
index cfb538a..fbc9ffa 100644
--- a/src/http/ngx_http_variables.c
+++ b/src/http/ngx_http_variables.c
@@ -1463,17 +1463,15 @@
 ngx_http_variable_is_args(ngx_http_request_t *r,
     ngx_http_variable_value_t *v, uintptr_t data)
 {
-    v->valid = 1;
-    v->no_cacheable = 0;
-    v->not_found = 0;
-
     if (r->args.len == 0) {
-        v->len = 0;
-        v->data = NULL;
+        *v = ngx_http_variable_null_value;
         return NGX_OK;
     }
 
     v->len = 1;
+    v->valid = 1;
+    v->no_cacheable = 0;
+    v->not_found = 0;
     v->data = (u_char *) "?";
 
     return NGX_OK;
@@ -1990,11 +1988,7 @@
         return NGX_OK;
     }
 
-    v->len = 0;
-    v->valid = 1;
-    v->no_cacheable = 0;
-    v->not_found = 0;
-    v->data = (u_char *) "";
+    *v = ngx_http_variable_null_value;
 
     return NGX_OK;
 }