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94 lines
2.7 KiB
94 lines
2.7 KiB
// Copyright (c) 2016 The WebM project authors. All Rights Reserved.
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//
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// Use of this source code is governed by a BSD-style license
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// that can be found in the LICENSE file in the root of the source
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// tree. An additional intellectual property rights grant can be found
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// in the file PATENTS. All contributing project authors may
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// be found in the AUTHORS file in the root of the source tree.
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#include "common/file_util.h"
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#include <sys/stat.h>
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#ifndef _MSC_VER
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#include <unistd.h> // close()
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#endif
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#include <cstdio>
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#include <cstdlib>
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#include <cstring>
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#include <fstream>
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#include <ios>
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#include <string>
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namespace libwebm {
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std::string GetTempFileName() {
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#if !defined _MSC_VER && !defined __MINGW32__
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std::string temp_file_name_template_str =
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std::string(std::getenv("TEST_TMPDIR") ? std::getenv("TEST_TMPDIR")
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: ".") +
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"/libwebm_temp.XXXXXX";
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char* temp_file_name_template =
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new char[temp_file_name_template_str.length() + 1];
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memset(temp_file_name_template, 0, temp_file_name_template_str.length() + 1);
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temp_file_name_template_str.copy(temp_file_name_template,
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temp_file_name_template_str.length(), 0);
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int fd = mkstemp(temp_file_name_template);
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std::string temp_file_name =
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(fd != -1) ? std::string(temp_file_name_template) : std::string();
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delete[] temp_file_name_template;
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if (fd != -1) {
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close(fd);
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}
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return temp_file_name;
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#else
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char tmp_file_name[_MAX_PATH];
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#if defined _MSC_VER || defined MINGW_HAS_SECURE_API
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errno_t err = tmpnam_s(tmp_file_name);
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#else
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char* fname_pointer = tmpnam(tmp_file_name);
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int err = (fname_pointer == &tmp_file_name[0]) ? 0 : -1;
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#endif
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if (err == 0) {
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return std::string(tmp_file_name);
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}
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return std::string();
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#endif
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}
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uint64_t GetFileSize(const std::string& file_name) {
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uint64_t file_size = 0;
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#ifndef _MSC_VER
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struct stat st;
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st.st_size = 0;
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if (stat(file_name.c_str(), &st) == 0) {
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#else
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struct _stat st;
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st.st_size = 0;
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if (_stat(file_name.c_str(), &st) == 0) {
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#endif
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file_size = st.st_size;
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}
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return file_size;
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}
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bool GetFileContents(const std::string& file_name, std::string* contents) {
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std::ifstream file(file_name.c_str());
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*contents = std::string(static_cast<size_t>(GetFileSize(file_name)), 0);
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if (file.good() && contents->size()) {
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file.read(&(*contents)[0], contents->size());
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}
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return !file.fail();
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}
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TempFileDeleter::TempFileDeleter() { file_name_ = GetTempFileName(); }
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TempFileDeleter::~TempFileDeleter() {
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std::ifstream file(file_name_.c_str());
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if (file.good()) {
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file.close();
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std::remove(file_name_.c_str());
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}
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}
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} // namespace libwebm
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