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/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "android-base/logging.h"
#include "android-base/test_utils.h"
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <unistd.h>
#if defined(_WIN32)
#include <windows.h>
#include <direct.h>
#define OS_PATH_SEPARATOR '\\'
#else
#define OS_PATH_SEPARATOR '/'
#endif
#include <string>
#ifdef _WIN32
int mkstemp(char* template_name) {
if (_mktemp(template_name) == nullptr) {
return -1;
}
// Use open() to match the close() that TemporaryFile's destructor does.
// Use O_BINARY to match base file APIs.
return open(template_name, O_CREAT | O_EXCL | O_RDWR | O_BINARY,
S_IRUSR | S_IWUSR);
}
char* mkdtemp(char* template_name) {
if (_mktemp(template_name) == nullptr) {
return nullptr;
}
if (_mkdir(template_name) == -1) {
return nullptr;
}
return template_name;
}
#endif
static std::string GetSystemTempDir() {
#if defined(__ANDROID__)
return "/data/local/tmp";
#elif defined(_WIN32)
char tmp_dir[MAX_PATH];
DWORD result = GetTempPathA(sizeof(tmp_dir), tmp_dir);
CHECK_NE(result, 0ul) << "GetTempPathA failed, error: " << GetLastError();
CHECK_LT(result, sizeof(tmp_dir)) << "path truncated to: " << result;
// GetTempPath() returns a path with a trailing slash, but init()
// does not expect that, so remove it.
CHECK_EQ(tmp_dir[result - 1], '\\');
tmp_dir[result - 1] = '\0';
return tmp_dir;
#else
return "/tmp";
#endif
}
TemporaryFile::TemporaryFile() {
init(GetSystemTempDir());
}
TemporaryFile::~TemporaryFile() {
close(fd);
unlink(path);
}
void TemporaryFile::init(const std::string& tmp_dir) {
snprintf(path, sizeof(path), "%s%cTemporaryFile-XXXXXX", tmp_dir.c_str(),
OS_PATH_SEPARATOR);
fd = mkstemp(path);
}
TemporaryDir::TemporaryDir() {
init(GetSystemTempDir());
}
TemporaryDir::~TemporaryDir() {
rmdir(path);
}
bool TemporaryDir::init(const std::string& tmp_dir) {
snprintf(path, sizeof(path), "%s%cTemporaryDir-XXXXXX", tmp_dir.c_str(),
OS_PATH_SEPARATOR);
return (mkdtemp(path) != nullptr);
}
CapturedStderr::CapturedStderr() : old_stderr_(-1) {
init();
}
CapturedStderr::~CapturedStderr() {
reset();
}
int CapturedStderr::fd() const {
return temp_file_.fd;
}
void CapturedStderr::init() {
#if defined(_WIN32)
// On Windows, stderr is often buffered, so make sure it is unbuffered so
// that we can immediately read back what was written to stderr.
CHECK_EQ(0, setvbuf(stderr, NULL, _IONBF, 0));
#endif
old_stderr_ = dup(STDERR_FILENO);
CHECK_NE(-1, old_stderr_);
CHECK_NE(-1, dup2(fd(), STDERR_FILENO));
}
void CapturedStderr::reset() {
CHECK_NE(-1, dup2(old_stderr_, STDERR_FILENO));
CHECK_EQ(0, close(old_stderr_));
// Note: cannot restore prior setvbuf() setting.
}
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