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diff src/core/ngx_string.c @ 3116:98e288c6dac3

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If .domain.com, .sub.domain.com, and .domain-some.com were defined, then .sub.domain.com was matched by .domain.com: wildcard names hash was built incorrectly due to sorting order issue of "." vs "-". They were sorted as com.domain com.domain-some com.domain.sub while they should be sorted as com.domain com.domain.sub com.domain-some for correct hash building
author Igor Sysoev <igor@sysoev.ru>
date Sat, 12 Sep 2009 09:28:37 +0000
parents 204ea173234f
children b344b68da8c5
line wrap: on
line diff
--- a/src/core/ngx_string.c
+++ b/src/core/ngx_string.c
@@ -820,6 +820,37 @@ ngx_memn2cmp(u_char *s1, u_char *s2, siz
 
 
 ngx_int_t
+ngx_dns_strcmp(u_char *s1, u_char *s2)
+{
+    ngx_uint_t  c1, c2;
+
+    for ( ;; ) {
+        c1 = (ngx_uint_t) *s1++;
+        c2 = (ngx_uint_t) *s2++;
+
+        c1 = (c1 >= 'A' && c1 <= 'Z') ? (c1 | 0x20) : c1;
+        c2 = (c2 >= 'A' && c2 <= 'Z') ? (c2 | 0x20) : c2;
+
+        if (c1 == c2) {
+
+            if (c1) {
+                continue;
+            }
+
+            return 0;
+        }
+
+        /* in ASCII '.' > '-', but we need '.' to be the lowest character */
+
+        c1 = (c1 == '.') ? ' ' : c1;
+        c2 = (c2 == '.') ? ' ' : c2;
+
+        return c1 - c2;
+    }
+}
+
+
+ngx_int_t
 ngx_atoi(u_char *line, size_t n)
 {
     ngx_int_t  value;