> Hi SSL experts, > I am using the s_client.c and the s_server.c for my ssl client and > server. I need to find the socket calls such as send and recv. ie > SSL_write( ), SSL_read( ), bio_read( ), bio( ) write etc will > finally have to make a call to the socket calls such as send and > recv as I guess. I need to access these socket calls. But I dont > know how to find them. Can anyone please could help me?
> Thanks, > Prashanth Is your question, "How can I use OpenSSL but not have it do the socket operations?" If so, look into "bio pairs". The 'ssltest.c' program in the 'ssl' directory is an example of how to do this. It looks like this: Other SSL connection <-> IO bio <-> SSL state <-> SSL bio <-> Application And the terms means: Other SSL connection: The other end of the SSL connection. IO bio: Whatever you have to do to act like a socket connected to the other SSL connection. SSL state: The SSL connection on your end. SSL bio: The buffer between the SSL engine and the application. Application: The part that sends and receives plaintext that needs to be exchanged with the other end. Just remember, if you use BIO pairs, there are four things you have to do: 1) If you receive anything from the other SSL endpoint, you need to give it to the IO BIO. 2) If any data appears on the IO BIO, you have to send it to the other SSL endpoint. 3) If your application wants to send anything to the other SSL endpoint, you need to give it to the SSL bio. 4) If any data appears on the SSL bio, you need to process it as received data. Do not assume that these operations will associate. That is, do not assume that just because you received data from the other SSL endpoint and gave it to the IO BIO, data will appear on the SSL bio. In this case, OpenSSL manages the SSL connection as a state machine hooked up to two BIOs. You are responsible for sending to and receiving from both BIOs as the SSL engine operates between them. DS ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List openssl-users@openssl.org Automated List Manager [EMAIL PROTECTED]
