[nginx] Fixed invalid access to location defined as an empty string.

[Ruslan Ermilov]

details:   http://hg.nginx.org/nginx/rev/45e513c3540d
branches:  
changeset: 7321:45e513c3540d
user:      Ruslan Ermilov <ru at nginx.com>
date:      Tue Jul 17 15:30:43 2018 +0300
description:
Fixed invalid access to location defined as an empty string.

diffstat:

 src/http/modules/ngx_http_fastcgi_module.c   |  2 +-
 src/http/modules/ngx_http_grpc_module.c      |  2 +-
 src/http/modules/ngx_http_memcached_module.c |  2 +-
 src/http/modules/ngx_http_proxy_module.c     |  2 +-
 src/http/modules/ngx_http_scgi_module.c      |  2 +-
 src/http/modules/ngx_http_uwsgi_module.c     |  2 +-
 6 files changed, 6 insertions(+), 6 deletions(-)

diffs (72 lines):

diff -r 696df3ac27ac -r 45e513c3540d src/http/modules/ngx_http_fastcgi_module.c
--- a/src/http/modules/ngx_http_fastcgi_module.c	Tue Jul 17 12:53:23 2018 +0300
+++ b/src/http/modules/ngx_http_fastcgi_module.c	Tue Jul 17 15:30:43 2018 +0300
@@ -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 -r 696df3ac27ac -r 45e513c3540d src/http/modules/ngx_http_grpc_module.c
--- a/src/http/modules/ngx_http_grpc_module.c	Tue Jul 17 12:53:23 2018 +0300
+++ b/src/http/modules/ngx_http_grpc_module.c	Tue Jul 17 15:30:43 2018 +0300
@@ -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 -r 696df3ac27ac -r 45e513c3540d src/http/modules/ngx_http_memcached_module.c
--- a/src/http/modules/ngx_http_memcached_module.c	Tue Jul 17 12:53:23 2018 +0300
+++ b/src/http/modules/ngx_http_memcached_module.c	Tue Jul 17 15:30:43 2018 +0300
@@ -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 -r 696df3ac27ac -r 45e513c3540d src/http/modules/ngx_http_proxy_module.c
--- a/src/http/modules/ngx_http_proxy_module.c	Tue Jul 17 12:53:23 2018 +0300
+++ b/src/http/modules/ngx_http_proxy_module.c	Tue Jul 17 15:30:43 2018 +0300
@@ -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 -r 696df3ac27ac -r 45e513c3540d src/http/modules/ngx_http_scgi_module.c
--- a/src/http/modules/ngx_http_scgi_module.c	Tue Jul 17 12:53:23 2018 +0300
+++ b/src/http/modules/ngx_http_scgi_module.c	Tue Jul 17 15:30:43 2018 +0300
@@ -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 -r 696df3ac27ac -r 45e513c3540d src/http/modules/ngx_http_uwsgi_module.c
--- a/src/http/modules/ngx_http_uwsgi_module.c	Tue Jul 17 12:53:23 2018 +0300
+++ b/src/http/modules/ngx_http_uwsgi_module.c	Tue Jul 17 15:30:43 2018 +0300
@@ -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;
     }