I'm trying to do nonblocking writes via OpenSSL. Initially I cribbed the
following from mod_ssl:
int iostate = 1;
rv = ioctl(sock, FIONBIO, (u_long*)&iostate);
rv = SSL_write(ssl, (char*)buf, len);
...
iostate = 0;
ioctl(sock, FIONBIO, (u_long*)&iostate);
But doing a 4kB write, followed by a ~30kB one, the second attempt would
consistently fail to write and get -1 back from SSL_write().
If I replace the ioctl() calls with fcntl() calls that should be equivalent,
it works every time. That is, set nonblocking as follows:
iostate = fcntl(sock, F_GETFL, 0);
iostate |= O_NDELAY;
rv = fcntl(sock, F_SETFL, iostate);
Why do I get different results here? I dug through the openssl code a bit
and can't see where this should make a difference. Buggy ioctl function,
maybe?
--
Tom Harrington
Cybernetic Entomologist
EMC Colorado Springs
[EMAIL PROTECTED]
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