openssl: remove SSL_get_session()-using code

It was present for OpenSSL 0.9.5 code but we only support 0.9.7 or
later.

diff --git a/lib/vtls/openssl.c b/lib/vtls/openssl.c
index 240295b6f87eaeea6e3e31823f5942237737ca4a..511efcc750453769666d29fe49a1288cabd3a02b 100644 (file)
--- a/lib/vtls/openssl.c
+++ b/lib/vtls/openssl.c
@@ -83,12 +83,6 @@
 #error "OPENSSL_VERSION_NUMBER not defined"
 #endif
 
-#if OPENSSL_VERSION_NUMBER >= 0x0090581fL
-#define HAVE_SSL_GET1_SESSION 1
-#else
-#undef HAVE_SSL_GET1_SESSION
-#endif
-
 #if OPENSSL_VERSION_NUMBER >= 0x00904100L
 #define HAVE_USERDATA_IN_PWD_CALLBACK 1
 #else
@@ -2814,25 +2808,11 @@ static CURLcode ossl_connect_step3(struct connectdata *conn, int sockindex)
 
   DEBUGASSERT(ssl_connect_3 == connssl->connecting_state);
 
-#ifdef HAVE_SSL_GET1_SESSION
   our_ssl_sessionid = SSL_get1_session(connssl->handle);
 
-  /* SSL_get1_session() will increment the reference
-     count and the session will stay in memory until explicitly freed with
-     SSL_SESSION_free(3), regardless of its state.
-     This function was introduced in openssl 0.9.5a. */
-#else
-  our_ssl_sessionid = SSL_get_session(connssl->handle);
-
-  /* if SSL_get1_session() is unavailable, use SSL_get_session().
-     This is an inferior option because the session can be flushed
-     at any time by openssl. It is included only so curl compiles
-     under versions of openssl < 0.9.5a.
-
-     WARNING: How curl behaves if it's session is flushed is
-     untested.
-  */
-#endif
+  /* SSL_get1_session() will increment the reference count and the session
+     will stay in memory until explicitly freed with SSL_SESSION_free(3),
+     regardless of its state. */
 
   incache = !(Curl_ssl_getsessionid(conn, &old_ssl_sessionid, NULL));
   if(incache) {
@@ -2851,7 +2831,6 @@ static CURLcode ossl_connect_step3(struct connectdata *conn, int sockindex)
       return result;
     }
   }
-#ifdef HAVE_SSL_GET1_SESSION
   else {
     /* Session was incache, so refcount already incremented earlier.
      * Avoid further increments with each SSL_get1_session() call.
@@ -2859,7 +2838,6 @@ static CURLcode ossl_connect_step3(struct connectdata *conn, int sockindex)
      */
     SSL_SESSION_free(our_ssl_sessionid);
   }
-#endif
 
   /*
    * We check certificates to authenticate the server; otherwise we risk