# HG changeset patch
# User Yunbin Liu yunbinliu@outlook.com
# Date 1554925873 -28800
# Thu Apr 11 03:51:13 2019 +0800
# Node ID 228b945cf5f8c30356fc5760f696e49545075f00
# Parent a6e23e343081b79eb924da985a414909310aa7a3
Fix bug of n in function of ngx_utf8_length

diff -r a6e23e343081 -r 228b945cf5f8 src/core/ngx_string.c
--- a/src/core/ngx_string.c Tue Apr 09 16:00:30 2019 +0300
+++ b/src/core/ngx_string.c Thu Apr 11 03:51:13 2019 +0800
@@ -1369,6 +1369,7 @@
{
u_char c, *last;
size_t len;
+ u_char *current_point;

last = p + n;

@@ -1378,13 +1379,16 @@

if (c < 0x80) {
p++;
+ n--;
continue;
}

+ current_point = p;
if (ngx_utf8_decode(&p, n) > 0x10ffff) {
/* invalid UTF-8 */
return n;
}
+ n -= p - current_point;
}

return len;
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