1 /* Copyright (c) 2017, Google Inc. 2 * 3 * Permission to use, copy, modify, and/or distribute this software for any 4 * purpose with or without fee is hereby granted, provided that the above 5 * copyright notice and this permission notice appear in all copies. 6 * 7 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 8 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 9 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 10 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 11 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION 12 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN 13 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ 14 15 #include <stdio.h> 16 17 #include <algorithm> 18 #include <vector> 19 20 #include "internal.h" 21 22 23 bool ReadAll(std::vector<uint8_t> *out, FILE *file) { 24 out->clear(); 25 26 constexpr size_t kMaxSize = 1024 * 1024; 27 size_t len = 0; 28 out->resize(128); 29 30 for (;;) { 31 len += fread(out->data() + len, 1, out->size() - len, file); 32 33 if (feof(file)) { 34 out->resize(len); 35 return true; 36 } 37 if (ferror(file)) { 38 return false; 39 } 40 41 if (len == out->size()) { 42 if (out->size() == kMaxSize) { 43 fprintf(stderr, "Input too large.\n"); 44 return false; 45 } 46 size_t cap = std::min(out->size() * 2, kMaxSize); 47 out->resize(cap); 48 } 49 } 50 } 51
