2 files changed, 41 insertions, 0 deletions
diff --git a/src/core/ngx_string.c b/src/core/ngx_string.c
index d3ff36855..fe6b1ee71 100644
--- a/src/core/ngx_string.c
+++ b/src/core/ngx_string.c
@@ -853,6 +853,46 @@ ngx_dns_strcmp(u_char *s1, u_char *s2)
 
 
 ngx_int_t
+ngx_filename_cmp(u_char *s1, u_char *s2, size_t n)
+{
+    ngx_uint_t  c1, c2;
+
+    while (n) {
+        c1 = (ngx_uint_t) *s1++;
+        c2 = (ngx_uint_t) *s2++;
+
+#if (NGX_HAVE_CASELESS_FILESYSTEM)
+        c1 = tolower(c1);
+        c2 = tolower(c2);
+#endif
+
+        if (c1 == c2) {
+
+            if (c1) {
+                n--;
+                continue;
+            }
+
+            return 0;
+        }
+
+        /* we need '/' to be the lowest character */
+
+        if (c1 == 0 || c2 == 0) {
+            return c1 - c2;
+        }
+
+        c1 = (c1 == '/') ? 0 : c1;
+        c2 = (c2 == '/') ? 0 : c2;
+
+        return c1 - c2;
+    }
+
+    return 0;
+}
+
+
+ngx_int_t
 ngx_atoi(u_char *line, size_t n)
 {
     ngx_int_t  value;
diff --git a/src/core/ngx_string.h b/src/core/ngx_string.h
index 92d246ebc..99bdbda6f 100644
--- a/src/core/ngx_string.h
+++ b/src/core/ngx_string.h
@@ -167,6 +167,7 @@ ngx_int_t ngx_rstrncmp(u_char *s1, u_char *s2, size_t n);
 ngx_int_t ngx_rstrncasecmp(u_char *s1, u_char *s2, size_t n);
 ngx_int_t ngx_memn2cmp(u_char *s1, u_char *s2, size_t n1, size_t n2);
 ngx_int_t ngx_dns_strcmp(u_char *s1, u_char *s2);
+ngx_int_t ngx_filename_cmp(u_char *s1, u_char *s2, size_t n);
 
 ngx_int_t ngx_atoi(u_char *line, size_t n);
 ngx_int_t ngx_atofp(u_char *line, size_t n, size_t point);