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-rw-r--r--src/core/ngx_string.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/core/ngx_string.h b/src/core/ngx_string.h
index b4a96c543..42d50a46c 100644
--- a/src/core/ngx_string.h
+++ b/src/core/ngx_string.h
@@ -155,6 +155,7 @@ u_char *ngx_utf_cpystrn(u_char *dst, u_char *src, size_t n);
#define NGX_ESCAPE_HTML 2
#define NGX_ESCAPE_REFRESH 3
#define NGX_ESCAPE_MEMCACHED 4
+#define NGX_ESCAPE_MAIL_AUTH 5
#define NGX_UNESCAPE_URI 1