mirror of
https://github.com/DrKLO/Telegram.git
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50 lines
1.4 KiB
C++
50 lines
1.4 KiB
C++
/* Copyright (c) 2017, Google Inc.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
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#include <stdio.h>
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#include <algorithm>
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#include <vector>
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#include "internal.h"
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bool ReadAll(std::vector<uint8_t> *out, FILE *file) {
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out->clear();
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constexpr size_t kMaxSize = 1024 * 1024;
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size_t len = 0;
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out->resize(128);
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for (;;) {
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len += fread(out->data() + len, 1, out->size() - len, file);
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if (feof(file)) {
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out->resize(len);
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return true;
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}
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if (ferror(file)) {
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return false;
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}
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if (len == out->size()) {
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if (out->size() == kMaxSize) {
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fprintf(stderr, "Input too large.\n");
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return false;
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}
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size_t cap = std::min(out->size() * 2, kMaxSize);
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out->resize(cap);
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}
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}
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}
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