diff options
Diffstat (limited to 'src/core/ext/transport/chttp2/transport/bin_decoder.h')
| -rw-r--r-- | src/core/ext/transport/chttp2/transport/bin_decoder.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/src/core/ext/transport/chttp2/transport/bin_decoder.h b/src/core/ext/transport/chttp2/transport/bin_decoder.h new file mode 100644 index 0000000000..b9d40c9b74 --- /dev/null +++ b/src/core/ext/transport/chttp2/transport/bin_decoder.h @@ -0,0 +1,66 @@ +/* + * + * Copyright 2016, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_BIN_DECODER_H +#define GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_BIN_DECODER_H + +#include <grpc/support/slice.h> +#include <stdbool.h> + +struct grpc_base64_decode_context { + /* input/output: */ + uint8_t *input_cur; + uint8_t *input_end; + uint8_t *output_cur; + uint8_t *output_end; + /* Indicate if the decoder should handle the tail of input data*/ + bool contains_tail; +}; + +/* base64 decode a grpc_base64_decode_context util either input_end is reached + or output_end is reached. When input_end is reached, (input_end - input_cur) + is less than 4. When output_end is reached, (output_end - output_cur) is less + than 3. Returns false if decoding is failed. */ +bool grpc_base64_decode_partial(struct grpc_base64_decode_context *ctx); + +/* base64 decode a slice with pad chars. Returns a new slice, does not take + ownership of the input. Returns an empty slice if decoding is failed. */ +gpr_slice grpc_chttp2_base64_decode(gpr_slice input); + +/* base64 decode a slice without pad chars, data length is needed. Returns a new + slice, does not take ownership of the input. Returns an empty slice if + decoding is failed. */ +gpr_slice grpc_chttp2_base64_decode_with_length(gpr_slice input, + size_t output_length); + +#endif /* GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_BIN_DECODER_H */ |