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Prevent win_eventlog_sink from silently discarding errors when wide support is enabled

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This commit is contained in:
Charles Milette 2021-01-06 22:17:09 -05:00
parent f39ccccc0c
commit fc594b551a
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GPG Key ID: 1A5AE81377AD973A
4 changed files with 11 additions and 23 deletions
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1
include/spdlog/common.h
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@ -103,6 +103,7 @@ using err_handler = std::function<void(const std::string &err_msg)>;
using string_view_t = fmt::basic_string_view<char>;
using wstring_view_t = fmt::basic_string_view<wchar_t>;
using memory_buf_t = fmt::basic_memory_buffer<char, 250>;
using wmemory_buf_t = fmt::basic_memory_buffer<wchar_t, 250>;
using filename_memory_buf_t = fmt::basic_memory_buffer<filename_t::value_type, 250>;
#ifdef SPDLOG_WCHAR_TO_UTF8_SUPPORT

6
include/spdlog/details/os-inl.h
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@ -469,7 +469,7 @@ SPDLOG_INLINE void wstr_to_utf8buf(wstring_view_t wstr, memory_buf_t &target)
throw_spdlog_ex(fmt::format("WideCharToMultiByte failed. Last error: {}", ::GetLastError()));
}
SPDLOG_INLINE void utf8_to_wstrbuf(string_view_t str, memory_buf_t &target)
SPDLOG_INLINE void utf8_to_wstrbuf(string_view_t str, wmemory_buf_t &target)
{
if (str.size() > static_cast<size_t>((std::numeric_limits<int>::max)()))
{
@ -484,7 +484,7 @@ SPDLOG_INLINE void utf8_to_wstrbuf(string_view_t str, memory_buf_t &target)
}
int result_size = static_cast<int>(target.capacity());
if ((str_size + 1) * 2 < result_size)
if (str_size + 1 > result_size)
{
result_size = ::MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, str.data(), str_size, NULL, 0);
}
@ -492,7 +492,7 @@ SPDLOG_INLINE void utf8_to_wstrbuf(string_view_t str, memory_buf_t &target)
if (result_size > 0)
{
target.resize(result_size);
result_size = ::MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, str.data(), str_size, (LPWSTR)target.data(), result_size);
result_size = ::MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, str.data(), str_size, target.data(), result_size);
if (result_size > 0)
{

2
include/spdlog/details/os.h
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@ -91,7 +91,7 @@ SPDLOG_API bool in_terminal(FILE *file) SPDLOG_NOEXCEPT;
#if (defined(SPDLOG_WCHAR_TO_UTF8_SUPPORT) || defined(SPDLOG_WCHAR_FILENAMES)) && defined(_WIN32)
SPDLOG_API void wstr_to_utf8buf(wstring_view_t wstr, memory_buf_t &target);
SPDLOG_API void utf8_to_wstrbuf(string_view_t str, memory_buf_t &target);
SPDLOG_API void utf8_to_wstrbuf(string_view_t str, wmemory_buf_t &target);
#endif
// Return directory name from given path or empty string

25
include/spdlog/sinks/win_eventlog_sink.h
View File

@ -224,35 +224,22 @@ protected:
formatted.push_back('\0');
#ifdef SPDLOG_WCHAR_TO_UTF8_SUPPORT
try
{
memory_buf_t buf;
details::os::utf8_to_wstrbuf(string_view_t(formatted.data(), formatted.size()), buf);
wmemory_buf_t buf;
details::os::utf8_to_wstrbuf(string_view_t(formatted.data(), formatted.size()), buf);
LPCWSTR lp_wstr = reinterpret_cast<LPCWSTR>(buf.data());
succeeded = ::ReportEventW(event_log_handle(), eventlog::get_event_type(msg), eventlog::get_event_category(msg), event_id_,
LPCWSTR lp_wstr = buf.data();
succeeded = ::ReportEventW(event_log_handle(), eventlog::get_event_type(msg), eventlog::get_event_category(msg), event_id_,
current_user_sid_.as_sid(), 1, 0, &lp_wstr, nullptr);
if (!succeeded)
{
SPDLOG_THROW(win32_error("ReportEvent"));
}
}
catch (...)
{
// WCHAR string conversion can fail and if it does, we shouldn't call to report event function.
}
#else
LPCSTR lp_str = reinterpret_cast<LPCSTR>(formatted.data());
LPCSTR lp_str = formatted.data();
succeeded = ::ReportEventA(event_log_handle(), eventlog::get_event_type(msg), eventlog::get_event_category(msg), event_id_,
current_user_sid_.as_sid(), 1, 0, &lp_str, nullptr);
#endif
if (!succeeded)
{
SPDLOG_THROW(win32_error("ReportEvent"));
}
#endif
}
void flush_() override {}