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diff --git a/thirdparty/libwebsockets/include/libwebsockets/lws-sha1-base64.h b/thirdparty/libwebsockets/include/libwebsockets/lws-sha1-base64.h
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+++ b/thirdparty/libwebsockets/include/libwebsockets/lws-sha1-base64.h
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+/*
+ * libwebsockets - small server side websockets and web server implementation
+ *
+ * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License as published by the Free Software Foundation:
+ *  version 2.1 of the License.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ *  MA  02110-1301  USA
+ *
+ * included from libwebsockets.h
+ */
+
+/** \defgroup sha SHA and B64 helpers
+ * ##SHA and B64 helpers
+ *
+ * These provide SHA-1 and B64 helper apis
+ */
+///@{
+#ifdef LWS_SHA1_USE_OPENSSL_NAME
+#define lws_SHA1 SHA1
+#else
+/**
+ * lws_SHA1(): make a SHA-1 digest of a buffer
+ *
+ * \param d: incoming buffer
+ * \param n: length of incoming buffer
+ * \param md: buffer for message digest (must be >= 20 bytes)
+ *
+ * Reduces any size buffer into a 20-byte SHA-1 hash.
+ */
+LWS_VISIBLE LWS_EXTERN unsigned char *
+lws_SHA1(const unsigned char *d, size_t n, unsigned char *md);
+#endif
+/**
+ * lws_b64_encode_string(): encode a string into base 64
+ *
+ * \param in: incoming buffer
+ * \param in_len: length of incoming buffer
+ * \param out: result buffer
+ * \param out_size: length of result buffer
+ *
+ * Encodes a string using b64
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_b64_encode_string(const char *in, int in_len, char *out, int out_size);
+/**
+ * lws_b64_encode_string_url(): encode a string into base 64
+ *
+ * \param in: incoming buffer
+ * \param in_len: length of incoming buffer
+ * \param out: result buffer
+ * \param out_size: length of result buffer
+ *
+ * Encodes a string using b64 with the "URL" variant (+ -> -, and / -> _)
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_b64_encode_string_url(const char *in, int in_len, char *out, int out_size);
+/**
+ * lws_b64_decode_string(): decode a string from base 64
+ *
+ * \param in: incoming buffer
+ * \param out: result buffer
+ * \param out_size: length of result buffer
+ *
+ * Decodes a NUL-terminated string using b64
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_b64_decode_string(const char *in, char *out, int out_size);
+/**
+ * lws_b64_decode_string_len(): decode a string from base 64
+ *
+ * \param in: incoming buffer
+ * \param in_len: length of incoming buffer
+ * \param out: result buffer
+ * \param out_size: length of result buffer
+ *
+ * Decodes a range of chars using b64
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_b64_decode_string_len(const char *in, int in_len, char *out, int out_size);
+///@}
+