Re: errno from open(<directory>) ?

[Tim Rühsen]

On 05/22/2017 02:04 PM, Gisle Vanem wrote:
> Tim Rühsen wrote:
> 
>> Built on MinGW / Win32 the same open sets errno to EACCES.
>>
>>
>> We currently use a work-around like
>> +    int rc = open(pathname, flags, mode);
>> +#ifdef _WIN32
>> +    if (rc < 0 && errno == EACCES) {
>> +        DWORD attrs = GetFileAttributes(pathname);
>> +        if (attrs & FILE_ATTRIBUTE_DIRECTORY)
>> +            errno = EISDIR;
>> +    }
>> +#endif
> 
> MSDN says:
>   If the function fails, the return value is INVALID_FILE_ATTRIBUTES.
> 
> which is ((DWORD)-1). So the test should better be:
> 
>   if (attr != INVALID_FILE_ATTRIBUTES && (attrs &
> FILE_ATTRIBUTE_DIRECTORY))
>     errno = EISDIR;
> 

Thanks for your correction. I'll amend the code for Wget2 respectively.

With Best Regards, Tim

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