gpg: Print designated revokers also in a standard listing.

* g10/keylist.c (print_revokers): Add arg with_colon, adjust callers,
add human printable format.
(list_keyblock_print): Call print_revokers.
--

Designated revokers were only printed in --with-colons mode.  For
quick inspection of a key it is useful to see them right away.

(cherry picked from commit 9d618d1273)

g10/keyedit.c

@@ -3724,7 +3724,7 @@ show_key_with_all_names_colon (ctrl_t ctrl, estream_t fp, kbnode_t keyblock)
 	  es_putc ('\n', fp);
 
 	  print_fingerprint (ctrl, fp, pk, 0);
-	  print_revokers (fp, pk);
+	  print_revokers (fp, 1, pk);
 	}
     }
 

g10/keygen.c

@@ -1112,6 +1112,35 @@ make_backsig (ctrl_t ctrl, PKT_signature *sig, PKT_public_key *pk,
 }
 
 
+/* This function should be called to make sure that
+ * opt.def_new_key_adsks has no duplicates and that tehre is no '!'
+ * suffix.  We don't do this during normal option processing because
+ * this list is only needed for a very few operations.  Callingit
+ * twice does not harm.  Users of the option list should skip empty
+ * items.  */
+void
+keygen_prepare_new_key_adsks (void)
+{
+  strlist_t sl, slr;
+  char *p;
+
+  for (sl = opt.def_new_key_adsks; sl; sl = sl->next)
+    {
+      if (!*sl->d)
+        continue;
+      p = strchr (sl->d, '!');
+      if (p)
+        *p = 0;
+      for (slr = opt.def_new_key_adsks; slr != sl; slr = slr->next)
+        if (!ascii_strcasecmp (sl->d, slr->d))
+          {
+            *sl->d = 0; /* clear fpr to mark this as a duplicate.  */
+            break;
+          }
+    }
+}
+
+
 /* Write a direct key signature to the first key in ROOT using the key
    PSK.  REVKEY is describes the direct key signature and TIMESTAMP is
    the timestamp to set on the signature.  */
@@ -4167,7 +4196,7 @@ prepare_desig_revoker (ctrl_t ctrl, const char *name)
 }
 
 
-/* Parse asn ADSK specified by NAME, check that the public key exists
+/* Parse an ADSK specified by NAME, check that the public key exists
  * and return a parameter with the adsk information.  On error print a
  * diagnostic and return NULL.  */
 static struct para_data_s *
@@ -4333,7 +4362,7 @@ proc_parameter_file (ctrl_t ctrl, struct para_data_s *para, const char *fname,
   const char *s1, *s2, *s3;
   size_t n;
   char *p;
-  strlist_t sl, slr;
+  strlist_t sl;
   int is_default = 0;
   int have_user_id = 0;
   int err, algo;
@@ -4500,21 +4529,11 @@ proc_parameter_file (ctrl_t ctrl, struct para_data_s *para, const char *fname,
    * also check for duplicate specifications.  In addition we remove
    * an optional '!' suffix for easier comparing; the suffix is anyway
    * re-added later.  */
+  keygen_prepare_new_key_adsks ();
   for (sl = opt.def_new_key_adsks; sl; sl = sl->next)
     {
       if (!*sl->d)
         continue;
-      p = strchr (sl->d, '!');
-      if (p)
-        *p = 0;
-      for (slr = opt.def_new_key_adsks; slr != sl; slr = slr->next)
-        if (!ascii_strcasecmp (sl->d, slr->d))
-          {
-            *sl->d = 0; /* clear fpr to mark this as a duplicate.  */
-            break;
-          }
-      if (!*sl->d)
-        continue;
 
       r = prepare_adsk (ctrl, sl->d);
       if (!r)

g10/keylist.c

@@ -1462,6 +1462,8 @@ list_keyblock_print (ctrl_t ctrl, kbnode_t keyblock, int secret, int fpr,
       es_putc ('\n', es_stdout);
     }
 
+  print_revokers (es_stdout, 0, pk);
+
   for (node = keyblock; node; node = node->next)
     {
       if (is_deleted_kbnode (node))
@@ -1687,28 +1689,43 @@ list_keyblock_simple (ctrl_t ctrl, kbnode_t keyblock)
 }
 
 
+/* Print the revoker records. */
 void
-print_revokers (estream_t fp, PKT_public_key * pk)
+print_revokers (estream_t fp, int colon_mode, PKT_public_key * pk)
 {
-  /* print the revoker record */
+  int i, j;
+  const byte *p;
+
   if (!pk->revkey && pk->numrevkeys)
     BUG ();
-  else
+
+  for (i = 0; i < pk->numrevkeys; i++)
     {
-      int i, j;
-
-      for (i = 0; i < pk->numrevkeys; i++)
-	{
-	  byte *p;
-
-	  es_fprintf (fp, "rvk:::%d::::::", pk->revkey[i].algid);
-	  p = pk->revkey[i].fpr;
-	  for (j = 0; j < pk->revkey[i].fprlen; j++, p++)
-	    es_fprintf (fp, "%02X", *p);
-	  es_fprintf (fp, ":%02x%s:\n",
+      if (colon_mode)
+        {
+          es_fprintf (fp, "rvk:::%d::::::", pk->revkey[i].algid);
+          p = pk->revkey[i].fpr;
+          for (j = 0; j < pk->revkey[i].fprlen; j++, p++)
+            es_fprintf (fp, "%02X", *p);
+          es_fprintf (fp, ":%02x%s:\n",
                       pk->revkey[i].class,
                       (pk->revkey[i].class & 0x40) ? "s" : "");
-	}
+        }
+      else
+        {
+          es_fprintf (fp, "%*s%s", 6, "", _("Revocable by: "));
+          p = pk->revkey[i].fpr;
+          es_write_hexstring (fp, pk->revkey[i].fpr, pk->revkey[i].fprlen,
+                              0, NULL);
+          if ((pk->revkey[i].class & 0x40))
+            es_fprintf (fp, " %s", _("(sensitive)"));
+          /* Class bit 7 must always be set, bit 6 indicates sensitive
+           * and all others bits are reserved.  */
+          if (!(pk->revkey[i].class & ~0x40)
+              || (pk->revkey[i].class & ~(0x40|0x80)))
+            es_fprintf (fp, " (unknown class %02x)", pk->revkey[i].class);
+	  es_fprintf (fp, "\n");
+        }
     }
 }
 
@@ -1870,7 +1887,7 @@ list_keyblock_colon (ctrl_t ctrl, kbnode_t keyblock,
   es_putc (':', es_stdout);		/* End of field 20 (origin). */
   es_putc ('\n', es_stdout);
 
-  print_revokers (es_stdout, pk);
+  print_revokers (es_stdout, 1, pk);
   print_fingerprint (ctrl, NULL, pk, 0);
   if (hexgrip)
     es_fprintf (es_stdout, "grp:::::::::%s:\n", hexgrip);

g10/main.h

@@ -476,7 +476,7 @@ void list_keyblock_direct (ctrl_t ctrl, kbnode_t keyblock, int secret,
 int  cmp_signodes (const void *av, const void *bv);
 void print_fingerprint (ctrl_t ctrl, estream_t fp,
                         PKT_public_key *pk, int mode);
-void print_revokers (estream_t fp, PKT_public_key *pk);
+void print_revokers (estream_t fp, int colon_mode, PKT_public_key *pk);
 void show_preferences (PKT_user_id *uid, int indent, int mode, int verbose);
 void show_policy_url(PKT_signature *sig,int indent,int mode);
 void show_keyserver_url(PKT_signature *sig,int indent,int mode);