Cygwin + OS X SMB reparse point test 3

#include <windows.h>
#include <stdio.h>

void scream_and_die(const char* complaint, ...)
{
    va_list args = NULL;

    char format[80];
    snprintf(format, sizeof(format), "%s: %%s (0x%x)\n",
            complaint, GetLastError());

    LPTSTR syserr = 0;
    FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM |
            FORMAT_MESSAGE_ALLOCATE_BUFFER, 0, GetLastError(),
            MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
            (LPTSTR)&syserr, 0, 0);

    fprintf(stderr, format, syserr);
    exit(1);
}

int main()
{
    const char* path = "P:\\";
    HANDLE handle = CreateFile (path, GENERIC_READ, 0, 0,
            OPEN_EXISTING,
            FILE_ATTRIBUTE_NORMAL | FILE_FLAG_BACKUP_SEMANTICS |
            FILE_FLAG_OPEN_REPARSE_POINT,
            0);
    if (handle == INVALID_HANDLE_VALUE) {
        scream_and_die("Bad handle");
    }
    else {
        BY_HANDLE_FILE_INFORMATION fi;
        if (GetFileInformationByHandle(handle, &fi) &&
                (fi.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT)) {
            char buf[32000];
            DWORD len;

            if (!DeviceIoControl(handle,
                    FSCTL_GET_REPARSE_POINT, NULL, 0,
                    buf, 32000, &len, NULL)) {
                scream_and_die("Failed to get reparse point");
            }
            else {
                printf("No error\n");
            }
        }
        else {
            printf("Reparse flag not set\n");
        }

        return 0;
    }
}