Viewing file:  lws-sha1-base64.h (2.8 KB) -rw-rw-r--
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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);
///@}
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