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Atmosphere/stratosphere/ams_mitm/source/dns_mitm/dnsmitm_debug.cpp

77 lines
2.4 KiB
C++

/*
* Copyright (c) Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stratosphere.hpp>
#include "../amsmitm_fs_utils.hpp"
#include "dnsmitm_debug.hpp"
namespace ams::mitm::socket::resolver {
namespace {
constinit os::SdkMutex g_log_mutex;
constinit bool g_log_enabled;
constinit ::FsFile g_log_file;
constinit s64 g_log_ofs;
constinit char g_log_buf[0x400];
}
void InitializeDebug(bool enable_log) {
{
std::scoped_lock lk(g_log_mutex);
g_log_enabled = enable_log;
if (g_log_enabled) {
/* Create the logs directory. */
mitm::fs::CreateAtmosphereSdDirectory("/logs");
/* Create the log file. */
mitm::fs::CreateAtmosphereSdFile("/logs/dns_mitm_debug.log", 0, ams::fs::CreateOption_None);
/* Open the log file. */
R_ABORT_UNLESS(mitm::fs::OpenAtmosphereSdFile(std::addressof(g_log_file), "/logs/dns_mitm_debug.log", ams::fs::OpenMode_ReadWrite | ams::fs::OpenMode_AllowAppend));
/* Get the current log offset. */
R_ABORT_UNLESS(::fsFileGetSize(std::addressof(g_log_file), std::addressof(g_log_ofs)));
}
}
/* Start a new log. */
LogDebug("\n---\n");
}
void LogDebug(const char *fmt, ...) {
std::scoped_lock lk(g_log_mutex);
if (g_log_enabled) {
int len = 0;
{
std::va_list vl;
va_start(vl, fmt);
len = util::VSNPrintf(g_log_buf, sizeof(g_log_buf), fmt, vl);
va_end(vl);
}
R_ABORT_UNLESS(::fsFileWrite(std::addressof(g_log_file), g_log_ofs, g_log_buf, len, FsWriteOption_Flush));
g_log_ofs += len;
}
}
}