Fix engine key support in cms and req utilities.

PR#4246 and PR#4266

Reviewed-by: Rich Salz <rsalz@openssl.org>

apps/cms.c

@@ -206,7 +206,7 @@ OPTIONS cms_options[] = {
     {"recip", OPT_RECIP, '<', "Recipient cert file for decryption"},
     {"certsout", OPT_CERTSOUT, '>', "Certificate output file"},
     {"md", OPT_MD, 's'},
-    {"inkey", OPT_INKEY, '<',
+    {"inkey", OPT_INKEY, 's',
      "Input private key (if not signer or recipient)"},
     {"keyform", OPT_KEYFORM, 'f', "Input private key format (PEM or ENGINE)"},
     {"keyopt", OPT_KEYOPT, 's', "Set public key parameters as n:v pairs"},

apps/req.c

@@ -136,8 +136,8 @@ OPTIONS req_options[] = {
     {"outform", OPT_OUTFORM, 'F', "Output format - DER or PEM"},
     {"in", OPT_IN, '<', "Input file"},
     {"out", OPT_OUT, '>', "Output file"},
-    {"key", OPT_KEY, '<', "Use the private key contained in file"},
-    {"keyform", OPT_KEYFORM, 'F', "Key file format"},
+    {"key", OPT_KEY, 's', "Private key to use"},
+    {"keyform", OPT_KEYFORM, 'f', "Key file format"},
     {"pubkey", OPT_PUBKEY, '-', "Output public key"},
     {"new", OPT_NEW, '-', "New request"},
     {"config", OPT_CONFIG, '<', "Request template file"},
@@ -235,7 +235,7 @@ int req_main(int argc, char **argv)
                 goto opthelp;
             break;
         case OPT_ENGINE:
-            (void)setup_engine(opt_arg(), 0);
+            e = setup_engine(opt_arg(), 0);
             break;
         case OPT_KEYGEN_ENGINE:
 #ifndef OPENSSL_NO_ENGINE
@@ -259,7 +259,7 @@ int req_main(int argc, char **argv)
             template = opt_arg();
             break;
         case OPT_KEYFORM:
-            if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &keyform))
+            if (!opt_format(opt_arg(), OPT_FMT_ANY, &keyform))
                 goto opthelp;
             break;
         case OPT_IN: