wks: Add option --realclean to gpg-wks-client.

* tools/gpg-wks-client.c (oRealClean): New.
(opts): Add "realclean".
(parse_arguments): Implement.
(main): Take a copy of the module name to fix bad assignment from a
former patch.
* tools/gpg-wks-server.c (main): Ditto.
* tools/gpg-wks.h (opt): Add field realclean.
* tools/wks-util.c (wks_get_key): Call gpg with export-realclean
depending on the new option.
--

The default for gpg-wks-client is to install keys with all valid key
signatures.  The new option will eventually allow to install the keys
only with key signatures done by trusted-keys.  Also the export-option
is in gpg, it requires one more gpg patch to make it actually work.

tools/gpg-wks-client.c

@@ -78,6 +78,7 @@ enum cmd_and_opt_values
     oNoAutostart,
     oAddRevocs,
     oNoAddRevocs,
+    oRealClean,
 
     oDummy
   };
@@ -121,8 +122,9 @@ static gpgrt_opt_t opts[] = {
   ARGPARSE_s_n (oWithColons, "with-colons", "@"),
   ARGPARSE_s_s (oBlacklist, "blacklist", "@"),
   ARGPARSE_s_s (oDirectory, "directory", "@"),
-  ARGPARSE_s_n (oAddRevocs, "add-revocs", "add revocation certificates"),
+  ARGPARSE_s_n (oAddRevocs, "add-revocs", "@"),
   ARGPARSE_s_n (oNoAddRevocs, "no-add-revocs", "do not add revocation certificates"),
+  ARGPARSE_s_n (oRealClean, "realclean", "remove most key signatures"),
 
   ARGPARSE_s_s (oFakeSubmissionAddr, "fake-submission-addr", "@"),
 
@@ -273,6 +275,10 @@ parse_arguments (gpgrt_argparse_t *pargs, gpgrt_opt_t *popts)
           opt.add_revocs = 0;
           break;
 
+        case oRealClean:
+          opt.realclean = 1;
+          break;
+
 	case aSupported:
 	case aCreate:
 	case aReceive:
@@ -358,7 +364,7 @@ main (int argc, char **argv)
 
   /* Set defaults for non given options.  */
   if (!opt.gpg_program)
-    opt.gpg_program = gnupg_module_name (GNUPG_MODULE_NAME_GPG);
+    opt.gpg_program = xstrdup (gnupg_module_name (GNUPG_MODULE_NAME_GPG));
 
   if (!opt.directory)
     opt.directory = "openpgpkey";

tools/gpg-wks-server.c

@@ -308,7 +308,7 @@ main (int argc, char **argv)
 
   /* Set defaults for non given options.  */
   if (!opt.gpg_program)
-    opt.gpg_program = gnupg_module_name (GNUPG_MODULE_NAME_GPG);
+    opt.gpg_program = xstrdup (gnupg_module_name (GNUPG_MODULE_NAME_GPG));
 
   if (!opt.directory)
     opt.directory = "/var/lib/gnupg/wks";

tools/gpg-wks.h

@@ -40,6 +40,7 @@ struct
   int with_colons;
   int no_autostart;
   int add_revocs;
+  int realclean;
   char *output;
   char *gpg_program;
   char *directory;

tools/wks-util.c

@@ -246,7 +246,8 @@ wks_get_key (estream_t *r_key, const char *fingerprint, const char *addrspec,
   ccparray_put (&ccp, "--always-trust");
   if (!binary)
     ccparray_put (&ccp, "--armor");
-  ccparray_put (&ccp, "--export-options=export-clean");
+  ccparray_put (&ccp, opt.realclean? "--export-options=export-realclean"
+                /* */              : "--export-options=export-clean");
   ccparray_put (&ccp, "--export-filter");
   ccparray_put (&ccp, filterexp);
   ccparray_put (&ccp, "--export");