* delete.c: New.

* gpgsm.c: Made --delete-key work.
* server.c (cmd_delkeys): New.
(register_commands): New command DELKEYS.

* decrypt.c (gpgsm_decrypt): Print a convenience note when RC2 is
used and a STATUS_ERROR with the algorithm oid.

sm/ChangeLog

@@ -1,3 +1,13 @@
+2002-07-22  Werner Koch  <wk@gnupg.org>
+
+	* delete.c: New.
+	* gpgsm.c: Made --delete-key work.
+	* server.c (cmd_delkeys): New.
+	(register_commands): New command DELKEYS.
+
+	* decrypt.c (gpgsm_decrypt): Print a convenience note when RC2 is
+	used and a STATUS_ERROR with the algorithm oid.
+
 2002-07-03  Werner Koch  <wk@gnupg.org>
 
 	* server.c (gpgsm_status2): Insert a blank between all optional

sm/Makefile.am

@@ -44,6 +44,7 @@ gpgsm_SOURCES = \
 	decrypt.c \
 	import.c \
 	export.c \
+	delete.c \
 	certreqgen.c 
 
 

sm/decrypt.c

@@ -320,6 +320,10 @@ gpgsm_decrypt (CTRL ctrl, int in_fd, FILE *out_fp)
           if (!algo || !mode)
             {
               log_error ("unsupported algorithm `%s'\n", algoid? algoid:"?");
+              if (algoid && !strcmp (algoid, "1.2.840.113549.3.2"))
+                log_info (_("(this is the RC2 algorithm)\n"));
+              gpgsm_status2 (ctrl, STATUS_ERROR, "decrypt.algorithm",
+                             gnupg_error_token (rc), algoid, NULL);
               rc = GNUPG_Unsupported_Algorithm;
               goto leave;
             }

sm/delete.c

@@ -0,0 +1,165 @@
+/* delete.c
+ * Copyright (C) 2002 Free Software Foundation, Inc.
+ *
+ * This file is part of GnuPG.
+ *
+ * GnuPG is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * GnuPG is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ */
+
+#include <config.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <unistd.h> 
+#include <time.h>
+#include <assert.h>
+
+#include <gcrypt.h>
+#include <ksba.h>
+
+#include "gpgsm.h"
+#include "keydb.h"
+#include "i18n.h"
+
+
+/* Delete a certificate or an secret key from a key database. */
+static int
+delete_one (CTRL ctrl, const char *username)
+{
+  int rc = 0;
+  KEYDB_SEARCH_DESC desc;
+  KEYDB_HANDLE kh = NULL;
+  KsbaCert cert = NULL;
+  int duplicates = 0;
+  
+  rc = keydb_classify_name (username, &desc);
+  if (rc)
+    {
+      log_error (_("certificate `%s' not found: %s\n"),
+                 username, gnupg_strerror (rc));
+      gpgsm_status2 (ctrl, STATUS_DELETE_PROBLEM, "1", NULL);
+      goto leave;
+    }
+
+  kh = keydb_new (0);
+  if (!kh)
+    {
+      log_error ("keydb_new failed\n");
+      goto leave;
+    }
+
+      
+  rc = keydb_search (kh, &desc, 1);
+  if (!rc)
+    rc = keydb_get_cert (kh, &cert);
+  if (!rc)
+    {
+      char fpr[20];
+
+      gpgsm_get_fingerprint (cert, 0, fpr, NULL);
+
+    next_ambigious:
+      rc = keydb_search (kh, &desc, 1);
+      if (rc == -1)
+        rc = 0;
+      else if (!rc)
+        {
+          KsbaCert cert2 = NULL;
+          char fpr2[20];
+
+          /* We ignore all duplicated certificates which might have
+             been inserted due to program bugs. */
+          if (!keydb_get_cert (kh, &cert2))
+            {
+              gpgsm_get_fingerprint (cert2, 0, fpr2, NULL);
+              ksba_cert_release (cert2);
+              if (!memcmp (fpr, fpr2, 20))
+                {
+                  duplicates++;
+                  goto next_ambigious;
+                }
+            }
+          rc = GNUPG_Ambiguous_Name;
+        }
+    }
+  if (rc)
+    {
+      if (rc == -1)
+        rc = GNUPG_No_Public_Key;
+      log_error (_("certificate `%s' not found: %s\n"),
+                 username, gnupg_strerror (rc));
+      gpgsm_status2 (ctrl, STATUS_DELETE_PROBLEM, "3", NULL);
+      goto leave;
+    }
+
+  /* we need to search again to get back to the right position. */
+  do 
+    {
+      keydb_search_reset (kh);
+      rc = keydb_search (kh, &desc, 1);
+      if (rc)
+        {
+          log_error ("problem re-searching certificate: %s\n",
+                     gnupg_strerror (rc));
+          goto leave;
+        }
+      
+      rc = keydb_delete (kh);
+      if (rc) 
+        goto leave;
+      if (opt.verbose)
+        {
+          if (duplicates)
+            log_info (_("duplicated certificate `%s' deleted\n"), username);
+          else
+            log_info (_("certificate `%s' deleted\n"), username);
+        }
+    }
+  while (duplicates--);
+
+ leave:
+  keydb_release (kh);
+  ksba_cert_release (cert);
+  return rc;
+}
+
+
+
+/* Delete the certificates specified by NAMES. */
+int
+gpgsm_delete (CTRL ctrl, STRLIST names)
+{
+  int rc;
+
+  if (!names)
+    {
+      log_error ("nothing to delete\n");
+      return GNUPG_No_Data;
+    }
+  
+  for (; names; names=names->next )
+    {
+      rc = delete_one (ctrl, names->d);
+      if (rc)
+        {
+          log_error (_("deleting certificate \"%s\" failed: %s\n"),
+                     names->d, gnupg_strerror (rc) );
+          return rc;
+        }
+    }
+  
+  return 0;
+}

sm/fingerprint.c

@@ -36,7 +36,7 @@
    libksba because we need libgcrypt support).  The caller must
    provide an array of sufficient length or NULL so that the function
    allocates the array.  If r_len is not NULL, the length of the
-   digest is return, well, this can also be done by using
+   digest is returned; well, this can also be done by using
    gcry_md_get_algo_dlen().  If algo is 0, a SHA-1 will be used.
    
    If there is a problem , the function does never return NULL but a

sm/gpgsm.c

@@ -742,7 +742,7 @@ main ( int argc, char **argv)
 
         case aDeleteKey:
           set_cmd (&cmd, aDeleteKey);
-          greeting=1;
+          /*greeting=1;*/
           break;
 
         case aDetachedSign:
@@ -1213,13 +1213,10 @@ main ( int argc, char **argv)
       break;
 
     case aDeleteKey:
-      if (argc != 1)
-        wrong_args(_("--delete-key user-id"));
-      log_error ("this command has not yet been implemented\n");
-/*        username = make_username (fname); */
-/*        if( (rc = delete_key(username)) ) */
-/*          log_error ("%s: delete key failed: %s\n", username, gpg_errstr(rc) ); */
-/*        xfree(username); */
+      for (sl=NULL; argc; argc--, argv++)
+        add_to_strlist (&sl, *argv);
+      gpgsm_delete (&ctrl, sl);
+      free_strlist(sl);
       break;
 
     case aListSigs:

sm/gpgsm.h

@@ -210,6 +210,9 @@ int gpgsm_import (CTRL ctrl, int in_fd);
 /*-- export.c --*/
 void gpgsm_export (CTRL ctrl, STRLIST names, FILE *fp);
 
+/*-- delete.c --*/
+int gpgsm_delete (CTRL ctrl, STRLIST names);
+
 /*-- verify.c --*/
 int gpgsm_verify (CTRL ctrl, int in_fd, int data_fd, FILE *out_fp);
 

sm/server.c

@@ -499,6 +499,49 @@ cmd_export (ASSUAN_CONTEXT ctx, char *line)
 }
 
 
+static int 
+cmd_delkeys (ASSUAN_CONTEXT ctx, char *line)
+{
+  CTRL ctrl = assuan_get_pointer (ctx);
+  char *p;
+  STRLIST list, sl;
+  int rc;
+
+  /* break the line down into an STRLIST */
+  list = NULL;
+  for (p=line; *p; line = p)
+    {
+      while (*p && *p != ' ')
+        p++;
+      if (*p)
+        *p++ = 0;
+      if (*line)
+        {
+          sl = xtrymalloc (sizeof *sl + strlen (line));
+          if (!sl)
+            {
+              free_strlist (list);
+              return ASSUAN_Out_Of_Core;
+            }
+          sl->flags = 0;
+          strcpy_escaped_plus (sl->d, line);
+          sl->next = list;
+          list = sl;
+        }
+    }
+
+  rc = gpgsm_delete (ctrl, list);
+  free_strlist (list);
+
+  /* close and reset the fd */
+  close_message_fd (ctrl);
+  assuan_close_input_fd (ctx);
+  assuan_close_output_fd (ctx);
+
+  return map_to_assuan_status (rc);
+}
+
+
 
 /* MESSAGE FD=<n>
 
@@ -645,6 +688,7 @@ register_commands (ASSUAN_CONTEXT ctx)
     { "LISTKEYS",   0,  cmd_listkeys },
     { "LISTSECRETKEYS",  0,  cmd_listsecretkeys },
     { "GENKEY",     0,  cmd_genkey },
+    { "DELKEYS",    0,  cmd_delkeys },
     { NULL }
   };
   int i, j, rc;