[clamav-users] Cannot get 'fd' when using API 'cl_scanfile'

[Gao Hui]

Hi there,
I am trying to use API to scan a file with the file's absolute file path under Windows system. But it returns CL_EOPEN, Can't open file or directory. So, I debug step by step. The 'cl_scanfile' calls 'cl_scanfile_callback' and 'cl_scanfile_callback' calls 'safe_open (fname, O_RDONLY | O_BINARY)' , in the 'safe_open', there is a function called '_wopen' and it returns -1. So, the code can't find file descriptor.
I don't know why '_wopen' returns -1 and how to debug it. So, any suggestion could be helpful.
Also, I try to use GetLastError but find nothing.

int safe_open(const char *path, int flags, ...)
{
    wchar_t *wpath = uncpath(path);
    int ret;

    if (!wpath)
        return -1;
    if (flags & O_CREAT) {
        int mode;
        va_list ap;
        va_start(ap, flags);
        mode = va_arg(ap, int);
        va_end(ap);
        ret = _wopen(wpath, flags, mode);
    }
    else {
        ret = _wopen(wpath, flags);
    }
    free(wpath);
    return ret;
}

Thanks!
Jack Gao
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