1 /* 2 * 3 * Copyright 2015 gRPC authors. 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 */ 18 19 #ifndef GRPC_CORE_LIB_SLICE_B64_H 20 #define GRPC_CORE_LIB_SLICE_B64_H 21 22 #include <grpc/support/port_platform.h> 23 24 #include <grpc/slice.h> 25 26 /* Encodes data using base64. It is the caller's responsability to free 27 the returned char * using gpr_free. Returns NULL on NULL input. 28 TODO(makdharma) : change the flags to bool from int */ 29 char* grpc_base64_encode(const void* data, size_t data_size, int url_safe, 30 int multiline); 31 32 /* estimate the upper bound on size of base64 encoded data. The actual size 33 * is guaranteed to be less than or equal to the size returned here. */ 34 size_t grpc_base64_estimate_encoded_size(size_t data_size, int url_safe, 35 int multiline); 36 37 /* Encodes data using base64 and write it to memory pointed to by result. It is 38 * the caller's responsiblity to allocate enough memory in |result| to fit the 39 * encoded data. */ 40 void grpc_base64_encode_core(char* result, const void* vdata, size_t data_size, 41 int url_safe, int multiline); 42 43 /* Decodes data according to the base64 specification. Returns an empty 44 slice in case of failure. */ 45 grpc_slice grpc_base64_decode(const char* b64, int url_safe); 46 47 /* Same as above except that the length is provided by the caller. */ 48 grpc_slice grpc_base64_decode_with_len(const char* b64, size_t b64_len, 49 int url_safe); 50 51 #endif /* GRPC_CORE_LIB_SLICE_B64_H */ 52