From 6488dc693fa10496ea4d911640db490ee08a7cb3 Mon Sep 17 00:00:00 2001
From: liangyingjian <liangyingjian@rt-thread.com>
Date: Thu, 21 Nov 2019 18:05:04 +0800
Subject: [PATCH] =?UTF-8?q?[update]=E4=BF=AE=E6=94=B9=E4=BD=BF=E7=94=A8?=
 =?UTF-8?q?=E7=9A=84=E5=AD=97=E7=AC=A6=E8=BD=AC=E6=8D=A2=E5=87=BD=E6=95=B0?=
 =?UTF-8?q?=E4=B8=BA=20clib=20=E4=B8=AD=E7=9A=84=20tolower()=EF=BC=8C?=
 =?UTF-8?q?=E5=87=8F=E5=B0=8F=E4=BB=A3=E7=A0=81=E7=A9=BA=E9=97=B4=E3=80=82?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/webclient.c | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/src/webclient.c b/src/webclient.c
index 10b70e9..d78e9f5 100644
--- a/src/webclient.c
+++ b/src/webclient.c
@@ -46,21 +46,14 @@
 
 extern long int strtol(const char *nptr, char **endptr, int base);
 
-static int _tolower(int c)
-{
-    if (c >= 'A' && c <= 'Z')
-        c ^= 0x20;
-    return c;
-}
-
 static int webclient_strncasecmp(const char *a, const char *b, size_t n)
 {
     uint8_t c1, c2;
     if (n <= 0)
         return 0;
     do {
-        c1 = _tolower(*a++);
-        c2 = _tolower(*b++);
+        c1 = tolower(*a++);
+        c2 = tolower(*b++);
     } while (--n && c1 && c1 == c2);
     return c1 - c2;
 }