recv will return a WSEWOULDBLOCK error in there is no data available and the
socket is non-blocking.
> -----Original Message-----
> From: Paul Kudlawiec [mailto:[EMAIL PROTECTED]]
> Sent: Monday, October 23, 2000 10:41 AM
> To: [EMAIL PROTECTED]
> Subject: Receiving WSAEWOULDBLOCK on Windows NT only
>
>
> I have a problem with the 0.9.4 version of openSSL on Windows
> NT (this does
> not appear to be a problem on Unix). It looks like a similar problem
> mentioned in earlier postings by Steven Reddie (see: [BUG?]
> BIO_sock_should_retry() on Win32); one major difference is
> that we are not
> using pthreads in our NT application.
>
> While using SSL_write, it returns a -1 for the number of
> bytes written. I
> tracked down the line generating the error; it occurs during the
> get_server_hello process:
> ret=readsocket(b->num,out,outl);
> (located in bss_sock.c: line 190)
> "readsocket" is actually a macro for "recv". A WSAEWOULDBLOCK error is
> generated here meaning that the receive operation would block
> even though
> the
> socket is marked as nonblocking.
>
> In one of the earlier postings, Steven mentioned he made his
> openSSL work
> temporarily by simply removing the characters "&& 0" from the
> following line
> of
> code:
> #if defined(WINDOWS) && 0 /* more microsoft stupidity?
> perhaps not? Ben
> 4/1/99 */
> (located in bss_sock.c: line 347)
> This unfortuneately does not work for me--I get the same errors.
>
> I used Purify to see if there are any memory leaks etc. I
> don't know if this
> is the cause, but there were a number of warnings generated before it
> reached
> this line, occurring mostly around the following sections of code:
>
> Uninitialized Memory Reads:
> SHA1Update [sha1dgst.c:167]
> SHA1Update [sha1dgst.c:168]
> SHA1Update [sha1dgst.c:171]
> SHA1Update [sha1dgst.c:140]
> SHA1Final [sha1dgst.c:461]
>
> I tried the 0.9.6 version of openSSL, but I still have the
> same problem.
>
> Does anyone have any suggestions about how I can fix this?
>
> Paul Kudlawiec
> Software Engineer
> Transnexus
> [EMAIL PROTECTED]
>
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