TestFopenUsage.cpp (4649B)
1 #include <stdio.h> 2 #include <io.h> 3 #include <fcntl.h> 4 #include <fstream> 5 #include <windows.h> 6 7 void func_fopen() { 8 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.}} 9 FILE *f2; 10 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.}} 11 12 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.}} 13 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.}} 14 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.}} 15 int fd4; 16 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.}} 17 18 std::fstream fs1; 19 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.}} 20 std::ifstream ifs1; 21 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.}} 22 std::ofstream ofs1; 23 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.}} 24 #ifdef _MSC_VER 25 std::fstream fs2; 26 fs2.open(L"dummy.txt"); 27 std::ifstream ifs2; 28 ifs2.open(L"dummy.txt"); 29 std::ofstream ofs2; 30 ofs2.open(L"dummy.txt"); 31 #endif 32 33 LPOFSTRUCT buffer; 34 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.}} 35 36 #ifndef UNICODE 37 // CreateFile is just an alias of CreateFileA 38 LPCSTR buffer2; 39 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.}} 40 FILE_ATTRIBUTE_NORMAL, NULL); 41 #else 42 // CreateFile is just an alias of CreateFileW and should not be matched 43 LPCWSTR buffer2; 44 HANDLE hFile2 = CreateFile(buffer2, GENERIC_WRITE, 0, NULL, CREATE_NEW, 45 FILE_ATTRIBUTE_NORMAL, NULL); 46 #endif 47 LPCSTR buffer3; 48 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.}} 49 FILE_ATTRIBUTE_NORMAL, NULL); 50 }