Re: [PATCH v2 0/2] MR8588: cmd: Fix del builtin's behavior

[Alfred Agrell (＠Alcaro)]

On Fri Jul 18 10:19:43 2025 +0000, Alfred Agrell wrote:
> I completely agree find shouldn't touch stdin unless arguments say it should
> but it does
> #include <windows.h>
> int main(int argc, char** argv)
> {
>    SECURITY_ATTRIBUTES sa = { sizeof(sa), 0, TRUE };
>    STARTUPINFOA si = { sizeof(si) };
>    PROCESS_INFORMATION pi;
>    HANDLE stdout = GetStdHandle(STD_OUTPUT_HANDLE);
>    HANDLE nul = CreateFileA("NUL", GENERIC_READ,
> FILE_SHARE_WRITE|FILE_SHARE_READ, &sa, OPEN_EXISTING,
> FILE_ATTRIBUTE_NORMAL, NULL);
>    DWORD dummy;
>
>    WriteFile(stdout, "first\r\n", strlen("first\r\n"), &dummy, NULL);
>    si.dwFlags = STARTF_USESTDHANDLES;
>    si.hStdInput = NULL;
>    si.hStdOutput = stdout;
>    si.hStdError = stdout;
>    CreateProcessA(NULL, "cmd /c find /?", NULL, NULL, TRUE, 0, NULL, NULL,
> &si, &pi);
>    WaitForSingleObject(pi.hProcess, INFINITE);
>
>    WriteFile(stdout, "second\r\n", strlen("second\r\n"), &dummy, NULL);
>    si.hStdInput = nul;
>    CreateProcessA(NULL, "cmd /c find /?", NULL, NULL, TRUE, 0, NULL, NULL,
> &si, &pi);
>    WaitForSingleObject(pi.hProcess, INFINITE);
>    WriteFile(stdout, "done\r\n", strlen("done\r\n"), &dummy, NULL);
>
>    return 0;
> }

on wine, this returns unknown argument twice. On native, the second call returns usage, first returns a blank string.