huwcampbell.com
Reactos
1//
2// GetModuleFileNameA.cpp
3//
4// Copyright (c) Microsoft Corporation. All rights reserved.
5//
6// Definition of __acrt_GetModuleFileNameA.
7//
8
9#include <corecrt_internal_win32_buffer.h>
10
11DWORD __cdecl __acrt_GetModuleFileNameA(
12 HMODULE const hModule,
13 char * const lpFilename,
14 DWORD const nSize
15 )
16{
17 size_t const wide_buffer_size = MAX_PATH + 1;
18 wchar_t wide_buffer[wide_buffer_size];
19
20 DWORD const amount_copied = GetModuleFileNameW(
21 hModule,
22 wide_buffer,
23 wide_buffer_size
24 );
25
26 if (amount_copied == 0) {
27 __acrt_errno_map_os_error(GetLastError());
28 return 0;
29 }
30
31 __crt_no_alloc_win32_buffer<char> filename_buffer(lpFilename, static_cast<size_t>(nSize));
32
33 errno_t const cvt = __acrt_wcs_to_mbs_cp(
34 wide_buffer,
35 filename_buffer,
36 __acrt_get_utf8_acp_compatibility_codepage()
37 );
38
39 return static_cast<DWORD>(filename_buffer.size());
40}