# HG changeset patch
# User Ruslan Ermilov <ru@nginx.com>
# Date 1531830643 -10800
# Node ID 45e513c3540de18824c7e1c05bd5470a1df652c3
# Parent  696df3ac27ac0b4affbf87692dbc2348ac998d5b
Fixed invalid access to location defined as an empty string.

diff --git a/src/http/modules/ngx_http_fastcgi_module.c b/src/http/modules/ngx_http_fastcgi_module.c
--- a/src/http/modules/ngx_http_fastcgi_module.c
+++ b/src/http/modules/ngx_http_fastcgi_module.c
@@ -3501,7 +3501,7 @@ ngx_http_fastcgi_pass(ngx_conf_t *cf, ng
 
     clcf->handler = ngx_http_fastcgi_handler;
 
-    if (clcf->name.data[clcf->name.len - 1] == '/') {
+    if (clcf->name.len && clcf->name.data[clcf->name.len - 1] == '/') {
         clcf->auto_redirect = 1;
     }
 
diff --git a/src/http/modules/ngx_http_grpc_module.c b/src/http/modules/ngx_http_grpc_module.c
--- a/src/http/modules/ngx_http_grpc_module.c
+++ b/src/http/modules/ngx_http_grpc_module.c
@@ -4525,7 +4525,7 @@ ngx_http_grpc_pass(ngx_conf_t *cf, ngx_c
 
     clcf->handler = ngx_http_grpc_handler;
 
-    if (clcf->name.data[clcf->name.len - 1] == '/') {
+    if (clcf->name.len && clcf->name.data[clcf->name.len - 1] == '/') {
         clcf->auto_redirect = 1;
     }
 
diff --git a/src/http/modules/ngx_http_memcached_module.c b/src/http/modules/ngx_http_memcached_module.c
--- a/src/http/modules/ngx_http_memcached_module.c
+++ b/src/http/modules/ngx_http_memcached_module.c
@@ -707,7 +707,7 @@ ngx_http_memcached_pass(ngx_conf_t *cf, 
 
     clcf->handler = ngx_http_memcached_handler;
 
-    if (clcf->name.data[clcf->name.len - 1] == '/') {
+    if (clcf->name.len && clcf->name.data[clcf->name.len - 1] == '/') {
         clcf->auto_redirect = 1;
     }
 
diff --git a/src/http/modules/ngx_http_proxy_module.c b/src/http/modules/ngx_http_proxy_module.c
--- a/src/http/modules/ngx_http_proxy_module.c
+++ b/src/http/modules/ngx_http_proxy_module.c
@@ -3580,7 +3580,7 @@ ngx_http_proxy_pass(ngx_conf_t *cf, ngx_
 
     clcf->handler = ngx_http_proxy_handler;
 
-    if (clcf->name.data[clcf->name.len - 1] == '/') {
+    if (clcf->name.len && clcf->name.data[clcf->name.len - 1] == '/') {
         clcf->auto_redirect = 1;
     }
 
diff --git a/src/http/modules/ngx_http_scgi_module.c b/src/http/modules/ngx_http_scgi_module.c
--- a/src/http/modules/ngx_http_scgi_module.c
+++ b/src/http/modules/ngx_http_scgi_module.c
@@ -1857,7 +1857,7 @@ ngx_http_scgi_pass(ngx_conf_t *cf, ngx_c
         return NGX_CONF_ERROR;
     }
 
-    if (clcf->name.data[clcf->name.len - 1] == '/') {
+    if (clcf->name.len && clcf->name.data[clcf->name.len - 1] == '/') {
         clcf->auto_redirect = 1;
     }
 
diff --git a/src/http/modules/ngx_http_uwsgi_module.c b/src/http/modules/ngx_http_uwsgi_module.c
--- a/src/http/modules/ngx_http_uwsgi_module.c
+++ b/src/http/modules/ngx_http_uwsgi_module.c
@@ -2144,7 +2144,7 @@ ngx_http_uwsgi_pass(ngx_conf_t *cf, ngx_
         return NGX_CONF_ERROR;
     }
 
-    if (clcf->name.data[clcf->name.len - 1] == '/') {
+    if (clcf->name.len && clcf->name.data[clcf->name.len - 1] == '/') {
         clcf->auto_redirect = 1;
     }