Added checks that disallow adding a variable with an empty name.

Added variable name syntax checks to "geo" and "map" directives.

1 files changed, 8 insertions, 1 deletions

diff --git a/src/http/modules/ngx_http_geo_module.c b/src/http/modules/ngx_http_geo_module.c
index 0e0aa0edc..1170cb337 100644
--- a/src/http/modules/ngx_http_geo_module.c
+++ b/src/http/modules/ngx_http_geo_module.c
@@ -325,7 +325,7 @@ ngx_http_geo_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
 
     name = value[1];
 
-    if (name.len < 2 || name.data[0] != '$') {
+    if (name.data[0] != '$') {
         ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
                            "invalid variable name \"%V\"", &name);
         return NGX_CONF_ERROR;
@@ -342,6 +342,13 @@ ngx_http_geo_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
         }
 
         name = value[2];
+
+        if (name.data[0] != '$') {
+            ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
+                               "invalid variable name \"%V\"", &name);
+            return NGX_CONF_ERROR;
+        }
+
         name.len--;
         name.data++;