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postgres/src/backend/libpq
Peter Eisentraut acd5803053 Standardize spelling of "nonblocking"
Only adjusted the user-exposed messages and documentation,  not all
source code comments.
2013-04-18 23:35:19 -04:00
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2013-01-01 17:15:01 -05:00
2013-01-01 17:15:01 -05:00
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2013-01-01 17:15:01 -05:00
2010-09-20 22:08:53 +02:00
2013-01-01 17:15:01 -05:00
2013-04-18 23:35:19 -04:00
2013-01-01 17:15:01 -05:00
2013-03-17 12:06:42 -04:00

src/backend/libpq/README.SSL

SSL
===

>From the servers perspective:


  Receives StartupPacket
           |
           |
 (Is SSL_NEGOTIATE_CODE?) -----------  Normal startup
           |                  No
           |
           | Yes
           |
           |
 (Server compiled with USE_SSL?) ------- Send 'N'
           |                       No        |
           |                                 |
           | Yes                         Normal startup
           |
           |
        Send 'S'
           |
           |
      Establish SSL
           |
           |
      Normal startup





>From the clients perspective (v6.6 client _with_ SSL):


      Connect
         |
         |
  Send packet with SSL_NEGOTIATE_CODE
         |
         |
  Receive single char  ------- 'S' -------- Establish SSL
         |                                       |
         | '<else>'                              |
         |                                  Normal startup
         |
         |
   Is it 'E' for error  ------------------- Retry connection
         |                  Yes             without SSL
         | No
         |
   Is it 'N' for normal ------------------- Normal startup
         |                  Yes
         |
   Fail with unknown

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