1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include <new> 18 #include <memory> 19 #include <fstream> 20 #include <iostream> 21 #include <fec/io.h> 22 23 using namespace std; 24 const unsigned bufsize = 2 * 1024 * FEC_BLOCKSIZE; 25 26 int main(int argc, char **argv) 27 { 28 if (argc != 3) { 29 cerr << "usage: " << argv[0] << " input output" << endl; 30 return 1; 31 } 32 33 unique_ptr<uint8_t[]> buffer(new (nothrow) uint8_t[bufsize]); 34 35 if (!buffer) { 36 cerr << "failed to allocate buffer" << endl; 37 return 1; 38 } 39 40 fec::io input(argv[1]); 41 42 if (!input) { 43 return 1; 44 } 45 46 ofstream output(argv[2], ios::binary | ios::trunc); 47 48 if (!output) { 49 cerr << "failed to open " << argv[2] << endl; 50 return 1; 51 } 52 53 ssize_t count; 54 55 do { 56 count = input.read(buffer.get(), bufsize); 57 58 if (count == -1) { 59 return 1; 60 } else if (count > 0) { 61 output.write(reinterpret_cast<const char *>(buffer.get()), count); 62 63 if (!output) { 64 cerr << "write" << endl; 65 return 1; 66 } 67 } 68 } while (count > 0); 69 70 return 0; 71 } 72
