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<tt>Showing the contents of the error queue would help, but it seems
most likely that what is going on is that I overlooked the fact
that BIO_new_mem_buf() makes a read-only BIO. I'm not sure
offhand that there's a way to get a writeable BIO using
application-supplied buffers; maybe someone else on the list
knows.<br>
<br>
-Ben<br>
</tt><br>
<div class="moz-cite-prefix">On 10/13/2016 05:04 AM, Ajay Garg
wrote:<br>
</div>
<blockquote
cite="mid:CAHP4M8UV8k1SbX7cunY+snWBimcO2bJ_2Gxf4-LxuCG9qhp7Sw@mail.gmail.com"
type="cite">
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<div>
<div>Thanks Ben for the reply.<br>
<br>
</div>
I tried the following, and the code hits the block as
commented ::<br>
<br>
<br>
###########################################################################<br>
static char inter_bio_buf[1000];<br>
static char network_bio_buf[1000];<br>
<br>
{<br>
BIO *inter_bio_buf_bio = NULL, *network_bio_buf_bio =
NULL;<br>
<br>
inter_bio_buf_bio = BIO_new_mem_buf(inter_bio_buf,
sizeof(inter_bio_buf));<br>
if(inter_bio_buf_bio == NULL)<br>
{<br>
</div>
/* Control does not reach here. */<br>
<div> }<br>
<br>
network_bio_buf_bio = BIO_new_mem_buf(network_bio_buf,
sizeof(network_bio_buf));<br>
if(network_bio_buf_bio == NULL)<br>
{<br>
/* Control does not reach here. */<br>
}<br>
<br>
if(!BIO_make_bio_pair(inter_bio_buf_bio,
network_bio_buf_bio))<br>
{<br>
/* CONTROL REACHES HERE. */<br>
}<br>
}<br>
############################################################################<br>
<br>
</div>
<div>What am I doing wrong?<br>
</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Wed, Oct 12, 2016 at 12:59 AM,
Benjamin Kaduk <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:bkaduk@akamai.com" target="_blank">bkaduk@akamai.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000"><span class=""> On
10/11/2016 02:06 PM, Ajay Garg wrote:<br>
<blockquote type="cite">
<div dir="ltr"><span
style="font-family:arial,helvetica,sans-serif">Hi
All.<br>
<br>
</span>
<div><span
style="font-family:arial,helvetica,sans-serif"><br>
</span></div>
<div><span
style="font-family:arial,helvetica,sans-serif">a)<br>
</span></div>
<div><span
style="font-family:arial,helvetica,sans-serif">In
the call,<br>
</span>
<pre class="m_8947789158244903202gmail-code"><span style="font-family:arial,helvetica,sans-serif"> int BIO_new_bio_pair(BIO **bio1, size_t writebuf1, BIO **bio2, size_t writebuf2);
are internal-buffers malloc'ed for each of "bio1" and "bio2"?
</span></pre>
<pre class="m_8947789158244903202gmail-code"><span style="font-family:arial,helvetica,sans-serif">If yes, is there a way to pass buffers from the application-layer?
I ask this, because not all systems possess dynamic-memory allocation (or at least "malloc" is not available on all systems).
</span></pre>
<pre class="m_8947789158244903202gmail-code"><span style="font-family:arial,helvetica,sans-serif">b)
Irrespective of the values of "writebuf1" and "writebuf2" in a), I see that everything works perfect.
So, there's got to be some internal-buffer that manages the complete ssl-packet, most probably instantiated via the call
BIO* BIO_new(BIO_f_ssl());
</span></pre>
<pre class="m_8947789158244903202gmail-code"><span style="font-family:arial,helvetica,sans-serif">Here too, is it possible to pass the buffer from application-layer (because of same reasons as above)?</span>
</pre>
</div>
</div>
</blockquote>
<br>
<br>
</span> You should be able to produce the desired effect
with BIO_new_mem_buf() (twice) and attaching the resulting
BIOs to each other with BIO_make_bio_pair().<br>
<br>
-Ben<br>
</div>
<br>
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<br>
-- <br>
<div class="gmail_signature" data-smartmail="gmail_signature">Regards,<br>
Ajay<br>
</div>
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