apache bench (ab) + ssl3 session-ID support

gistfile1.diff

/* usage: openssl s_client -connect localhost:8081 -sess_out outfile -ssl3 */
/* ab -I outfile ... */
--- support/ab.c	2010-07-12 05:26:29.000000000 -0400
+++ support/ab.c	2011-06-21 15:29:21.961972191 -0400
@@ -340,6 +340,7 @@
 char *ssl_cipher = NULL;
 char *ssl_info = NULL;
 BIO *bio_out,*bio_err;
+char * sess_in = NULL;
 #endif
 
 apr_time_t start, lasttime, stoptime;
@@ -1195,6 +1196,28 @@
             ERR_print_errors(bio_err);
             exit(1);
         }
+
+	if (sess_in != NULL) {
+	    SSL_SESSION * sess;
+	    BIO * sidfile;
+
+	    if (!(sidfile = BIO_new_file(sess_in, "r"))) {
+		fprintf(stderr, "error opening session file %s\n", sess_in);
+		ERR_print_errors_fp(stderr);
+		exit(1);
+	    }
+
+	    if (!(sess = PEM_read_bio_SSL_SESSION(sidfile, NULL, 0, NULL))) {
+		fprintf(stderr, "error reading session file %s\n", sess_in);
+		ERR_print_errors_fp(stderr);
+		exit(1);
+	    }
+
+	    BIO_free(sidfile);
+	    SSL_set_session(c->ssl, sess);
+	    SSL_SESSION_free(sess);
+	}
+
         ssl_rand_seed();
         apr_os_sock_get(&fd, c->aprsock);
         bio = BIO_new_socket(fd, BIO_NOCLOSE);
@@ -1875,6 +1898,7 @@
 #ifdef USE_SSL
     fprintf(stderr, "    -Z ciphersuite  Specify SSL/TLS cipher suite (See openssl ciphers)\n");
     fprintf(stderr, "    -f protocol     Specify SSL/TLS protocol (SSL2, SSL3, TLS1, or ALL)\n");
+    fprintf(stderr, "    -I in_file      Specify file to read SSL session from\n");
 #endif
     exit(EINVAL);
 }
@@ -2040,7 +2064,7 @@
     apr_getopt_init(&opt, cntxt, argc, argv);
     while ((status = apr_getopt(opt, "n:c:t:b:T:p:u:v:rkVhwix:y:z:C:H:P:A:g:X:de:Sq"
 #ifdef USE_SSL
-            "Z:f:"
+            "Z:f:I:"
 #endif
             ,&c, &optarg)) == APR_SUCCESS) {
         switch (c) {
@@ -2215,6 +2239,9 @@
                     meth = TLSv1_client_method();
                 }
                 break;
+	    case 'I':
+		sess_in = strdup(optarg);
+		break;
 #endif
         }
     }