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diff src/core/ngx_string.c @ 286:5bef04fc3fd5 NGINX_0_5_13

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nginx 0.5.13 *) Feature: the COPY and MOVE methods. *) Bugfix: the ngx_http_realip_module set garbage for requests passed via keep-alive connection. *) Bugfix: nginx did not work on big-endian 64-bit Linux. Thanks to Andrei Nigmatulin. *) Bugfix: now when IMAP/POP3 proxy receives too long command it closes the connection right away, but not after timeout. *) Bugfix: if the "epoll" method was used and a client closed a connection prematurely, then nginx closed the connection after a send timeout only. *) Bugfix: nginx could not be built on platforms different from i386, amd64, sparc and ppc; bug appeared in 0.5.8.
author Igor Sysoev <http://sysoev.ru>
date Mon, 19 Feb 2007 00:00:00 +0300
parents 052a7b1d40e5
children 9b7db0df50f0
line wrap: on
line diff
--- a/src/core/ngx_string.c
+++ b/src/core/ngx_string.c
@@ -428,6 +428,68 @@ ngx_vsnprintf(u_char *buf, size_t max, c
 }
 
 
+/*
+ * We use ngx_strcasecmp()/ngx_strncasecmp() for 7-bit ASCII string only,
+ * and implement our own ngx_strcasecmp()/ngx_strncasecmp()
+ * to avoid libc locale overhead.  Besides, we use the ngx_uint_t's
+ * instead of the u_char's, because they are slightly faster.
+ */
+
+ngx_int_t
+ngx_strcasecmp(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;
+        }
+
+        return c1 - c2;
+    }
+}
+
+
+ngx_int_t
+ngx_strncasecmp(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++;
+
+        c1  = (c1 >= 'A' && c1 <= 'Z') ? (c1 | 0x20) : c1;
+        c2  = (c2 >= 'A' && c2 <= 'Z') ? (c2 | 0x20) : c2;
+
+        if (c1 == c2) {
+
+            if (c1) {
+                n--;
+                continue;
+            }
+
+            return 0;
+        }
+
+        return c1 - c2;
+    }
+
+    return 0;
+}
+
+
 ngx_int_t
 ngx_rstrncmp(u_char *s1, u_char *s2, size_t n)
 {