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#include <stdio.h>
#include <io.h>
#include <fcntl.h>
#include <fstream>
#include <windows.h>
void func_fopen() {
FILE *f1 = fopen("dummy.txt", "rt"); // expected-warning {{Usage of ASCII file functions (here fopen) is forbidden on Windows.}} expected-note {{On Windows executed functions: fopen, fopen_s, open, _open, _sopen, _sopen_s, OpenFile, CreateFileA should never be used due to lossy conversion from UTF8 to ANSI.}}
FILE *f2;
fopen_s(&f2, "dummy.txt", "rt"); // expected-warning {{Usage of ASCII file functions (here fopen_s) is forbidden on Windows.}} expected-note {{On Windows executed functions: fopen, fopen_s, open, _open, _sopen, _sopen_s, OpenFile, CreateFileA should never be used due to lossy conversion from UTF8 to ANSI.}}
int fh1 = _open("dummy.txt", _O_RDONLY); // expected-warning {{Usage of ASCII file functions (here _open) is forbidden on Windows.}} expected-note {{On Windows executed functions: fopen, fopen_s, open, _open, _sopen, _sopen_s, OpenFile, CreateFileA should never be used due to lossy conversion from UTF8 to ANSI.}}
int fh2 = open("dummy.txt", _O_RDONLY); // expected-warning {{Usage of ASCII file functions (here open) is forbidden on Windows.}} expected-note {{On Windows executed functions: fopen, fopen_s, open, _open, _sopen, _sopen_s, OpenFile, CreateFileA should never be used due to lossy conversion from UTF8 to ANSI.}}
int fh3 = _sopen("dummy.txt", _O_RDONLY, _SH_DENYRW); // expected-warning {{Usage of ASCII file functions (here _sopen) is forbidden on Windows.}} expected-note {{On Windows executed functions: fopen, fopen_s, open, _open, _sopen, _sopen_s, OpenFile, CreateFileA should never be used due to lossy conversion from UTF8 to ANSI.}}
int fd4;
errno_t err = _sopen_s(&fd4, "dummy.txt", _O_RDONLY, _SH_DENYRW, 0); // expected-warning {{Usage of ASCII file functions (here _sopen_s) is forbidden on Windows.}} expected-note {{On Windows executed functions: fopen, fopen_s, open, _open, _sopen, _sopen_s, OpenFile, CreateFileA should never be used due to lossy conversion from UTF8 to ANSI.}}
std::fstream fs1;
fs1.open("dummy.txt"); // expected-warning {{Usage of ASCII file functions (here open) is forbidden on Windows.}} expected-note {{On Windows executed functions: fopen, fopen_s, open, _open, _sopen, _sopen_s, OpenFile, CreateFileA should never be used due to lossy conversion from UTF8 to ANSI.}}
std::ifstream ifs1;
ifs1.open("dummy.txt"); // expected-warning {{Usage of ASCII file functions (here open) is forbidden on Windows.}} expected-note {{On Windows executed functions: fopen, fopen_s, open, _open, _sopen, _sopen_s, OpenFile, CreateFileA should never be used due to lossy conversion from UTF8 to ANSI.}}
std::ofstream ofs1;
ofs1.open("dummy.txt"); // expected-warning {{Usage of ASCII file functions (here open) is forbidden on Windows.}} expected-note {{On Windows executed functions: fopen, fopen_s, open, _open, _sopen, _sopen_s, OpenFile, CreateFileA should never be used due to lossy conversion from UTF8 to ANSI.}}
#ifdef _MSC_VER
std::fstream fs2;
fs2.open(L"dummy.txt");
std::ifstream ifs2;
ifs2.open(L"dummy.txt");
std::ofstream ofs2;
ofs2.open(L"dummy.txt");
#endif
LPOFSTRUCT buffer;
HFILE hFile1 = OpenFile("dummy.txt", buffer, OF_READ); // expected-warning {{Usage of ASCII file functions (here OpenFile) is forbidden on Windows.}} expected-note {{On Windows executed functions: fopen, fopen_s, open, _open, _sopen, _sopen_s, OpenFile, CreateFileA should never be used due to lossy conversion from UTF8 to ANSI.}}
#ifndef UNICODE
// CreateFile is just an alias of CreateFileA
LPCSTR buffer2;
HANDLE hFile2 = CreateFile(buffer2, GENERIC_WRITE, 0, NULL, CREATE_NEW, // expected-warning {{Usage of ASCII file functions (here CreateFileA) is forbidden on Windows.}} expected-note {{On Windows executed functions: fopen, fopen_s, open, _open, _sopen, _sopen_s, OpenFile, CreateFileA should never be used due to lossy conversion from UTF8 to ANSI.}}
FILE_ATTRIBUTE_NORMAL, NULL);
#else
// CreateFile is just an alias of CreateFileW and should not be matched
LPCWSTR buffer2;
HANDLE hFile2 = CreateFile(buffer2, GENERIC_WRITE, 0, NULL, CREATE_NEW,
FILE_ATTRIBUTE_NORMAL, NULL);
#endif
LPCSTR buffer3;
HANDLE hFile3 = CreateFileA(buffer3, GENERIC_WRITE, 0, NULL, CREATE_NEW, // expected-warning {{Usage of ASCII file functions (here CreateFileA) is forbidden on Windows.}} expected-note {{On Windows executed functions: fopen, fopen_s, open, _open, _sopen, _sopen_s, OpenFile, CreateFileA should never be used due to lossy conversion from UTF8 to ANSI.}}
FILE_ATTRIBUTE_NORMAL, NULL);
}