Add DTLS support to ssltest

Reviewed-by: NEmilia Käsper <emilia@openssl.org>

ssl/ssltest.c

@@ -788,6 +788,10 @@ static void sv_usage(void)
     fprintf(stderr, " -ssl3         - use SSLv3\n");
 #endif
     fprintf(stderr, " -tls1         - use TLSv1\n");
+#ifndef OPENSSL_NO_DTLS
+    fprintf(stderr, " -dtls1        - use DTLSv1\n");
+    fprintf(stderr, " -dtls12       - use DTLSv1.2\n");
+#endif
     fprintf(stderr, " -CApath arg   - PEM format directory of CA's\n");
     fprintf(stderr, " -CAfile arg   - PEM format file of CA's\n");
     fprintf(stderr, " -cert arg     - Server certificate file\n");
@@ -958,7 +962,7 @@ int main(int argc, char *argv[])
     int badop = 0;
     int bio_pair = 0;
     int force = 0;
-    int tls1 = 0, ssl3 = 0, ret = 1;
+    int dtls1 = 0, dtls12 = 0, tls1 = 0, ssl3 = 0, ret = 1;
     int client_auth = 0;
     int server_auth = 0, i;
     struct app_verify_arg app_verify_arg =
@@ -1136,6 +1140,16 @@ int main(int argc, char *argv[])
             no_protocol = 1;
 #endif
             ssl3 = 1;
+        } else if (strcmp(*argv, "-dtls1") == 0) {
+#ifdef OPENSSL_NO_DTLS
+            no_protocol = 1;
+#endif
+            dtls1 = 1;
+        } else if (strcmp(*argv, "-dtls12") == 0) {
+#ifdef OPENSSL_NO_DTLS
+            no_protocol = 1;
+#endif
+            dtls12 = 1;
         } else if (strncmp(*argv, "-num", 4) == 0) {
             if (--argc < 1)
                 goto bad;
@@ -1309,8 +1323,8 @@ int main(int argc, char *argv[])
         goto end;
     }
 
-    if (ssl3 + tls1 > 1) {
-        fprintf(stderr, "At most one of -ssl3, or -tls1 should "
+    if (ssl3 + tls1 + dtls1 + dtls12 > 1) {
+        fprintf(stderr, "At most one of -ssl3, -tls1, -dtls1 or -dtls12 should "
                 "be requested.\n");
         EXIT(1);
     }
@@ -1327,10 +1341,10 @@ int main(int argc, char *argv[])
         goto end;
     }
 
-    if (!ssl3 && !tls1 && number > 1 && !reuse && !force) {
+    if (!ssl3 && !tls1 && !dtls1 && !dtls12 && number > 1 && !reuse && !force) {
         fprintf(stderr, "This case cannot work.  Use -f to perform "
                 "the test anyway (and\n-d to see what happens), "
-                "or add one of -ssl3, -tls1, -reuse\n"
+                "or add one of -ssl3, -tls1, -dtls1, -dtls12, -reuse\n"
                 "to avoid protocol mismatch.\n");
         EXIT(1);
     }
@@ -1402,6 +1416,13 @@ int main(int argc, char *argv[])
     if (ssl3)
         meth = SSLv3_method();
     else
+#endif
+#ifndef OPENSSL_NO_DTLS
+    if (dtls1)
+        meth = DTLSv1_method();
+    else if (dtls12)
+        meth = DTLSv1_2_method();
+    else
 #endif
     if (tls1)
         meth = TLSv1_method();