Make `openssl x509 -noout -modulus' functional also for DSA certificates (in

addition to RSA certificates) to match the behaviour of `openssl dsa -noout
-modulus' as it's already the case for `openssl rsa -noout -modulus'.  For RSA
the -modulus is the real "modulus" while for DSA currently the public key is
printed (a decision which was already done by `openssl dsa -modulus' in the
past) which serves a similar purpose.  Additionally the NO_RSA no longer
completely removes the whole -modulus option; it now only avoids using the RSA
stuff. Same applies to NO_DSA now, too.

CHANGES

@@ -5,6 +5,17 @@
 
  Changes between 0.9.1c and 0.9.2
 
+  *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
+     (in addition to RSA certificates) to match the behaviour of `openssl dsa
+     -noout -modulus' as it's already the case for `openssl rsa -noout
+     -modulus'.  For RSA the -modulus is the real "modulus" while for DSA
+     currently the public key is printed (a decision which was already done by
+     `openssl dsa -modulus' in the past) which serves a similar purpose.
+     Additionally the NO_RSA no longer completely removes the whole -modulus
+     option; it now only avoids using the RSA stuff. Same applies to NO_DSA
+     now, too.
+     [Ralf S.  Engelschall]
+
   *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
      BIO. See the source (crypto/evp/bio_ok.c) for more info.
      [Arne Ansper <arne@ats.cyber.ee>]

apps/x509.c

@@ -468,7 +468,6 @@ bad:
 				BIO_printf(STDout,"%08lx\n",X509_subject_name_hash(x));
 				}
 			else
-#ifndef NO_RSA
 				if (modulus == i)
 				{
 				EVP_PKEY *pkey;
@@ -481,15 +480,21 @@ bad:
 					goto end;
 					}
 				BIO_printf(STDout,"Modulus=");
+#ifndef NO_RSA
 				if (pkey->type == EVP_PKEY_RSA)
 					BN_print(STDout,pkey->pkey.rsa->n);
 				else
+#endif
+#ifndef NO_DSA
+				if (pkey->type == EVP_PKEY_DSA)
+					BN_print(STDout,pkey->pkey.dsa->pub_key);
+				else
+#endif
 					BIO_printf(STDout,"Wrong Algorithm type");
 				BIO_printf(STDout,"\n");
 				EVP_PKEY_free(pkey);
 				}
 			else
-#endif
 				if (C == i)
 				{
 				unsigned char *d;