ngx_path_separator()

src/http/ngx_http_parse.c

diff --git a/src/http/ngx_http_parse.c b/src/http/ngx_http_parse.c
index 11e62e6..4aa1be8 100644
--- a/src/http/ngx_http_parse.c
+++ b/src/http/ngx_http_parse.c
@@ -1337,12 +1337,7 @@
         goto unsafe;
     }
 
-    if (p[0] == '.' && len == 3 && p[1] == '.' && (p[2] == '/'
-#if (NGX_WIN32)
-                                                   || p[2] == '\\'
-#endif
-        ))
-    {
+    if (p[0] == '.' && len == 3 && p[1] == '.' && (ngx_path_separator(p[2]))) {
         goto unsafe;
     }
 
@@ -1367,30 +1362,22 @@
             continue;
         }
 
-        if ((ch == '/'
-#if (NGX_WIN32)
-             || ch == '\\'
-#endif
-            ) && len > 2)
-        {
+        if (ngx_path_separator(ch) && len > 2) {
+
             /* detect "/../" */
 
-            if (p[0] == '.' && p[1] == '.' && p[2] == '/') {
+            if (p[0] == '.' && p[1] == '.' && ngx_path_separator(p[2])) {
                 goto unsafe;
             }
 
 #if (NGX_WIN32)
 
-            if (p[2] == '\\') {
-                goto unsafe;
-            }
-
             if (len > 3) {
 
                 /* detect "/.../" */
 
                 if (p[0] == '.' && p[1] == '.' && p[2] == '.'
-                    && (p[3] == '/' || p[3] == '\\'))
+                    && ngx_path_separator(p[3]))
                 {
                     goto unsafe;
                 }

src/http/ngx_http_request.c

diff --git a/src/http/ngx_http_request.c b/src/http/ngx_http_request.c
index 31ab640..d06c6dd 100644
--- a/src/http/ngx_http_request.c
+++ b/src/http/ngx_http_request.c
@@ -1587,15 +1587,9 @@
             continue;
         }
 
-        if (ch == '/' || ch == '\0') {
+        if (ngx_path_separator(ch) || ch == '\0') {
             return -1;
         }
-
-#if (NGX_WIN32)
-        if (ch == '\\') {
-            return -1;
-        }
-#endif
     }
 
     if (dot) {

src/os/unix/ngx_files.h

diff --git a/src/os/unix/ngx_files.h b/src/os/unix/ngx_files.h
index 63d080b..7d83b04 100644
--- a/src/os/unix/ngx_files.h
+++ b/src/os/unix/ngx_files.h
@@ -160,6 +160,8 @@
 #define ngx_realpath_n           "realpath()"
 #define ngx_getcwd(buf, size)    (getcwd(buf, size) != NULL)
 #define ngx_getcwd_n             "getcwd()"
+#define ngx_path_separator(c)    ((c) == '/')
+
 #define NGX_MAX_PATH             PATH_MAX
 
 #define NGX_DIR_MASK_LEN         0

src/os/win32/ngx_files.h

diff --git a/src/os/win32/ngx_files.h b/src/os/win32/ngx_files.h
index f3561d9..1e2c630 100644
--- a/src/os/win32/ngx_files.h
+++ b/src/os/win32/ngx_files.h
@@ -154,6 +154,8 @@
 #define ngx_realpath_n              ""
 #define ngx_getcwd(buf, size)       GetCurrentDirectory(size, buf)
 #define ngx_getcwd_n                "GetCurrentDirectory()"
+#define ngx_path_separator(c)       ((c) == '/' || (c) == '\\')
+
 #define NGX_MAX_PATH                MAX_PATH