g10/keyedit.c

   1 /* keyedit.c - keyedit stuff
   2  * Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
   3  *               2008 Free Software Foundation, Inc.
   4  *
   5  * This file is part of GnuPG.
   6  *
   7  * GnuPG is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 3 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * GnuPG is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #include <config.h>
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24 #include <string.h>
  25 #include <errno.h>
  26 #include <assert.h>
  27 #include <ctype.h>
  28 #ifdef HAVE_LIBREADLINE
  29 #define GNUPG_LIBREADLINE_H_INCLUDED
  30 #include <readline/readline.h>
  31 #endif
  32
  33 #include "gpg.h"
  34 #include "options.h"
  35 #include "packet.h"
  36 #include "status.h"
  37 #include "iobuf.h"
  38 #include "keydb.h"
  39 #include "photoid.h"
  40 #include "util.h"
  41 #include "main.h"
  42 #include "trustdb.h"
  43 #include "filter.h"
  44 #include "ttyio.h"
  45 #include "status.h"
  46 #include "i18n.h"
  47 #include "keyserver-internal.h"
  48
  49 static void show_prefs( PKT_user_id *uid, PKT_signature *selfsig, int verbose);
  50 static void show_names(KBNODE keyblock,PKT_public_key *pk,
  51                        unsigned int flag,int with_prefs);
  52 static void show_key_with_all_names( KBNODE keyblock, int only_marked,
  53             int with_revoker, int with_fpr, int with_subkeys, int with_prefs );
  54 static void show_key_and_fingerprint( KBNODE keyblock );
  55 static int menu_adduid( KBNODE keyblock, KBNODE sec_keyblock,
  56                         int photo, const char *photo_name );
  57 static void menu_deluid( KBNODE pub_keyblock, KBNODE sec_keyblock );
  58 static int menu_delsig( KBNODE pub_keyblock );
  59 static int menu_clean(KBNODE keyblock,int self_only);
  60 static void menu_delkey( KBNODE pub_keyblock, KBNODE sec_keyblock );
  61 static int menu_addrevoker( KBNODE pub_keyblock,
  62                             KBNODE sec_keyblock, int sensitive );
  63 static int menu_expire( KBNODE pub_keyblock, KBNODE sec_keyblock );
  64 static int menu_backsign(KBNODE pub_keyblock,KBNODE sec_keyblock);
  65 static int menu_set_primary_uid( KBNODE pub_keyblock, KBNODE sec_keyblock );
  66 static int menu_set_preferences( KBNODE pub_keyblock, KBNODE sec_keyblock );
  67 static int menu_set_keyserver_url (const char *url,
  68                                    KBNODE pub_keyblock, KBNODE sec_keyblock );
  69 static int menu_set_notation(const char *string,
  70                              KBNODE pub_keyblock,KBNODE sec_keyblock);
  71 static int menu_select_uid( KBNODE keyblock, int idx );
  72 static int menu_select_uid_namehash( KBNODE keyblock, const char *namehash );
  73 static int menu_select_key( KBNODE keyblock, int idx );
  74 static int count_uids( KBNODE keyblock );
  75 static int count_uids_with_flag( KBNODE keyblock, unsigned flag );
  76 static int count_keys_with_flag( KBNODE keyblock, unsigned flag );
  77 static int count_selected_uids( KBNODE keyblock );
  78 static int real_uids_left( KBNODE keyblock );
  79 static int count_selected_keys( KBNODE keyblock );
  80 static int menu_revsig( KBNODE keyblock );
  81 static int menu_revuid( KBNODE keyblock, KBNODE sec_keyblock );
  82 static int menu_revkey( KBNODE pub_keyblock, KBNODE sec_keyblock );
  83 static int menu_revsubkey( KBNODE pub_keyblock, KBNODE sec_keyblock );
  84 static int enable_disable_key( KBNODE keyblock, int disable );
  85 static void menu_showphoto( KBNODE keyblock );
  86
  87 static int update_trust=0;
  88
  89 #define CONTROL_D ('D' - 'A' + 1)
  90
  91 #define NODFLG_BADSIG (1<<0)  /* bad signature */
  92 #define NODFLG_NOKEY  (1<<1)  /* no public key */
  93 #define NODFLG_SIGERR (1<<2)  /* other sig error */
  94
  95 #define NODFLG_MARK_A (1<<4)  /* temporary mark */
  96 #define NODFLG_DELSIG (1<<5)  /* to be deleted */
  97
  98 #define NODFLG_SELUID (1<<8)  /* indicate the selected userid */
  99 #define NODFLG_SELKEY (1<<9)  /* indicate the selected key */
 100 #define NODFLG_SELSIG (1<<10) /* indicate a selected signature */
 101
 102 struct sign_attrib {
 103     int non_exportable,non_revocable;
 104     struct revocation_reason_info *reason;
 105     byte trust_depth,trust_value;
 106     char *trust_regexp;
 107 };
 108
 109
 110 #ifdef ENABLE_CARD_SUPPORT
 111 /* Given a node SEC_NODE with a secret key or subkey, locate the
 112    corresponding public key from pub_keyblock. */
 113 static PKT_public_key *
 114 find_pk_from_sknode (KBNODE pub_keyblock, KBNODE sec_node)
 115 {
 116   KBNODE node = pub_keyblock;
 117   PKT_secret_key *sk;
 118   PKT_public_key *pk;
 119
 120   if (sec_node->pkt->pkttype == PKT_SECRET_KEY
 121       && node->pkt->pkttype == PKT_PUBLIC_KEY)
 122     return node->pkt->pkt.public_key;
 123   if (sec_node->pkt->pkttype != PKT_SECRET_SUBKEY)
 124     return NULL;
 125   sk = sec_node->pkt->pkt.secret_key;
 126   for (; node; node = node->next)
 127     if (node->pkt->pkttype == PKT_PUBLIC_SUBKEY)
 128       {
 129         pk = node->pkt->pkt.public_key;
 130         if (pk->keyid[0] == sk->keyid[0] && pk->keyid[1] == sk->keyid[1])
 131           return pk;
 132       }
 133
 134   return NULL;
 135 }
 136 #endif /* ENABLE_CARD_SUPPORT */
 137
 138
 139 /* TODO: Fix duplicated code between here and the check-sigs/list-sigs
 140    code in keylist.c. */
 141 static int
 142 print_and_check_one_sig_colon( KBNODE keyblock, KBNODE node,
 143                                int *inv_sigs, int *no_key, int *oth_err,
 144                                int *is_selfsig, int print_without_key )
 145 {
 146   PKT_signature *sig = node->pkt->pkt.signature;
 147   int rc, sigrc;
 148
 149   /* TODO: Make sure a cached sig record here still has the pk that
 150      issued it.  See also keylist.c:list_keyblock_print */
 151
 152   switch((rc=check_key_signature(keyblock,node,is_selfsig)))
 153     {
 154     case 0:
 155       node->flag &= ~(NODFLG_BADSIG|NODFLG_NOKEY|NODFLG_SIGERR);
 156       sigrc = '!';
 157       break;
 158     case G10ERR_BAD_SIGN:
 159       node->flag = NODFLG_BADSIG;
 160       sigrc = '-';
 161       if( inv_sigs )
 162         ++*inv_sigs;
 163       break;
 164     case G10ERR_NO_PUBKEY:
 165     case G10ERR_UNU_PUBKEY:
 166       node->flag = NODFLG_NOKEY;
 167       sigrc = '?';
 168       if( no_key )
 169         ++*no_key;
 170       break;
 171     default:
 172       node->flag = NODFLG_SIGERR;
 173       sigrc = '%';
 174       if( oth_err )
 175         ++*oth_err;
 176       break;
 177     }
 178
 179   if( sigrc != '?' || print_without_key )
 180     {
 181       printf("sig:%c::%d:%08lX%08lX:%lu:%lu:",
 182              sigrc,sig->pubkey_algo,(ulong)sig->keyid[0],(ulong)sig->keyid[1],
 183              (ulong)sig->timestamp,(ulong)sig->expiredate);
 184
 185       if(sig->trust_depth || sig->trust_value)
 186         printf("%d %d",sig->trust_depth,sig->trust_value);
 187
 188       printf(":");
 189
 190       if(sig->trust_regexp)
 191         print_string(stdout,sig->trust_regexp,strlen(sig->trust_regexp),':');
 192
 193       printf("::%02x%c\n",sig->sig_class,sig->flags.exportable?'x':'l');
 194
 195       if(opt.show_subpackets)
 196         print_subpackets_colon(sig);
 197     }
 198
 199   return (sigrc == '!');
 200 }
 201
 202
 203 /****************
 204  * Print information about a signature, check it and return true
 205  * if the signature is okay. NODE must be a signature packet.
 206  */
 207 static int
 208 print_and_check_one_sig( KBNODE keyblock, KBNODE node,
 209                          int *inv_sigs, int *no_key, int *oth_err,
 210                         int *is_selfsig, int print_without_key )
 211 {
 212     PKT_signature *sig = node->pkt->pkt.signature;
 213     int rc, sigrc;
 214     int is_rev = sig->sig_class == 0x30;
 215
 216     /* TODO: Make sure a cached sig record here still has the pk that
 217        issued it.  See also keylist.c:list_keyblock_print */
 218
 219     switch( (rc = check_key_signature( keyblock, node, is_selfsig)) ) {
 220       case 0:
 221         node->flag &= ~(NODFLG_BADSIG|NODFLG_NOKEY|NODFLG_SIGERR);
 222         sigrc = '!';
 223         break;
 224       case G10ERR_BAD_SIGN:
 225         node->flag = NODFLG_BADSIG;
 226         sigrc = '-';
 227         if( inv_sigs )
 228             ++*inv_sigs;
 229         break;
 230       case G10ERR_NO_PUBKEY:
 231       case G10ERR_UNU_PUBKEY:
 232         node->flag = NODFLG_NOKEY;
 233         sigrc = '?';
 234         if( no_key )
 235             ++*no_key;
 236         break;
 237       default:
 238         node->flag = NODFLG_SIGERR;
 239         sigrc = '%';
 240         if( oth_err )
 241             ++*oth_err;
 242         break;
 243     }
 244     if( sigrc != '?' || print_without_key ) {
 245         tty_printf("%s%c%c %c%c%c%c%c%c %s %s",
 246                    is_rev? "rev":"sig",sigrc,
 247                    (sig->sig_class-0x10>0 &&
 248                     sig->sig_class-0x10<4)?'0'+sig->sig_class-0x10:' ',
 249                    sig->flags.exportable?' ':'L',
 250                    sig->flags.revocable?' ':'R',
 251                    sig->flags.policy_url?'P':' ',
 252                    sig->flags.notation?'N':' ',
 253                    sig->flags.expired?'X':' ',
 254                    (sig->trust_depth>9)?'T':
 255                    (sig->trust_depth>0)?'0'+sig->trust_depth:' ',
 256                    keystr(sig->keyid),datestr_from_sig(sig));
 257         if(opt.list_options&LIST_SHOW_SIG_EXPIRE)
 258           tty_printf(" %s",expirestr_from_sig(sig));
 259         tty_printf("  ");
 260         if( sigrc == '%' )
 261             tty_printf("[%s] ", g10_errstr(rc) );
 262         else if( sigrc == '?' )
 263             ;
 264         else if( *is_selfsig ) {
 265             tty_printf( is_rev? _("[revocation]")
 266                               : _("[self-signature]") );
 267         }
 268         else
 269           {
 270             size_t n;
 271             char *p = get_user_id( sig->keyid, &n );
 272             tty_print_utf8_string2(p, n, opt.screen_columns-keystrlen()-26-
 273                                ((opt.list_options&LIST_SHOW_SIG_EXPIRE)?11:0));
 274             xfree(p);
 275           }
 276         tty_printf("\n");
 277
 278         if(sig->flags.policy_url && (opt.list_options&LIST_SHOW_POLICY_URLS))
 279           show_policy_url(sig,3,0);
 280
 281         if(sig->flags.notation && (opt.list_options&LIST_SHOW_NOTATIONS))
 282           show_notation(sig,3,0,
 283                         ((opt.list_options&LIST_SHOW_STD_NOTATIONS)?1:0)+
 284                         ((opt.list_options&LIST_SHOW_USER_NOTATIONS)?2:0));
 285
 286         if(sig->flags.pref_ks && (opt.list_options&LIST_SHOW_KEYSERVER_URLS))
 287           show_keyserver_url(sig,3,0);
 288     }
 289
 290     return (sigrc == '!');
 291 }
 292
 293
 294
 295 /****************
 296  * Check the keysigs and set the flags to indicate errors.
 297  * Returns true if error found.
 298  */
 299 static int
 300 check_all_keysigs( KBNODE keyblock, int only_selected )
 301 {
 302     KBNODE kbctx;
 303     KBNODE node;
 304     int inv_sigs = 0;
 305     int no_key = 0;
 306     int oth_err = 0;
 307     int has_selfsig = 0;
 308     int mis_selfsig = 0;
 309     int selected = !only_selected;
 310     int anyuid = 0;
 311
 312     for( kbctx=NULL; (node=walk_kbnode( keyblock, &kbctx, 0)) ; ) {
 313         if( node->pkt->pkttype == PKT_USER_ID ) {
 314             PKT_user_id *uid = node->pkt->pkt.user_id;
 315
 316             if( only_selected )
 317                 selected = (node->flag & NODFLG_SELUID);
 318             if( selected ) {
 319                 tty_printf("uid  ");
 320                 tty_print_utf8_string( uid->name, uid->len );
 321                 tty_printf("\n");
 322                 if( anyuid && !has_selfsig )
 323                     mis_selfsig++;
 324                 has_selfsig = 0;
 325                 anyuid = 1;
 326             }
 327         }
 328         else if( selected && node->pkt->pkttype == PKT_SIGNATURE
 329                  && ( (node->pkt->pkt.signature->sig_class&~3) == 0x10
 330                      || node->pkt->pkt.signature->sig_class == 0x30 )  ) {
 331             int selfsig;
 332
 333             if( print_and_check_one_sig( keyblock, node, &inv_sigs,
 334                                         &no_key, &oth_err, &selfsig, 0 ) ) {
 335                 if( selfsig )
 336                     has_selfsig = 1;
 337             }
 338             /* Hmmm: should we update the trustdb here? */
 339         }
 340     }
 341     if( !has_selfsig )
 342         mis_selfsig++;
 343     if( inv_sigs == 1 )
 344         tty_printf(_("1 bad signature\n") );
 345     else if( inv_sigs )
 346         tty_printf(_("%d bad signatures\n"), inv_sigs );
 347     if( no_key == 1 )
 348         tty_printf(_("1 signature not checked due to a missing key\n") );
 349     else if( no_key )
 350         tty_printf(_("%d signatures not checked due to missing keys\n"), no_key );
 351     if( oth_err == 1 )
 352         tty_printf(_("1 signature not checked due to an error\n") );
 353     else if( oth_err )
 354         tty_printf(_("%d signatures not checked due to errors\n"), oth_err );
 355     if( mis_selfsig == 1 )
 356         tty_printf(_("1 user ID without valid self-signature detected\n"));
 357     else if( mis_selfsig  )
 358         tty_printf(_("%d user IDs without valid self-signatures detected\n"),
 359                                                                     mis_selfsig);
 360
 361     return inv_sigs || no_key || oth_err || mis_selfsig;
 362 }
 363
 364
 365 static int
 366 sign_mk_attrib( PKT_signature *sig, void *opaque )
 367 {
 368     struct sign_attrib *attrib = opaque;
 369     byte buf[8];
 370
 371     if( attrib->non_exportable ) {
 372         buf[0] = 0; /* not exportable */
 373         build_sig_subpkt( sig, SIGSUBPKT_EXPORTABLE, buf, 1 );
 374     }
 375
 376     if( attrib->non_revocable ) {
 377         buf[0] = 0; /* not revocable */
 378         build_sig_subpkt( sig, SIGSUBPKT_REVOCABLE, buf, 1 );
 379     }
 380
 381     if( attrib->reason )
 382         revocation_reason_build_cb( sig, attrib->reason );
 383
 384     if(attrib->trust_depth)
 385       {
 386         /* Not critical.  If someone doesn't understand trust sigs,
 387            this can still be a valid regular signature. */
 388         buf[0] = attrib->trust_depth;
 389         buf[1] = attrib->trust_value;
 390         build_sig_subpkt(sig,SIGSUBPKT_TRUST,buf,2);
 391
 392         /* Critical.  If someone doesn't understands regexps, this
 393            whole sig should be invalid.  Note the +1 for the length -
 394            regexps are null terminated. */
 395         if(attrib->trust_regexp)
 396           build_sig_subpkt(sig,SIGSUBPKT_FLAG_CRITICAL|SIGSUBPKT_REGEXP,
 397                            attrib->trust_regexp,
 398                            strlen(attrib->trust_regexp)+1);
 399       }
 400
 401     return 0;
 402 }
 403
 404 static void
 405 trustsig_prompt(byte *trust_value,byte *trust_depth,char **regexp)
 406 {
 407   char *p;
 408
 409   *trust_value=0;
 410   *trust_depth=0;
 411   *regexp=NULL;
 412
 413   /* Same string as pkclist.c:do_edit_ownertrust */
 414   tty_printf(_("Please decide how far you trust this user to correctly verify"
 415                " other users' keys\n(by looking at passports, checking"
 416                " fingerprints from different sources, etc.)\n"));
 417   tty_printf("\n");
 418   tty_printf (_("  %d = I trust marginally\n"), 1);
 419   tty_printf (_("  %d = I trust fully\n"), 2);
 420   tty_printf("\n");
 421
 422   while(*trust_value==0)
 423     {
 424       p = cpr_get("trustsig_prompt.trust_value",_("Your selection? "));
 425       trim_spaces(p);
 426       cpr_kill_prompt();
 427       /* 60 and 120 are as per RFC2440 */
 428       if(p[0]=='1' && !p[1])
 429         *trust_value=60;
 430       else if(p[0]=='2' && !p[1])
 431         *trust_value=120;
 432       xfree(p);
 433     }
 434
 435   tty_printf("\n");
 436
 437   tty_printf(_(
 438               "Please enter the depth of this trust signature.\n"
 439               "A depth greater than 1 allows the key you are signing to make\n"
 440               "trust signatures on your behalf.\n"));
 441   tty_printf("\n");
 442
 443   while(*trust_depth==0)
 444     {
 445       p = cpr_get("trustsig_prompt.trust_depth",_("Your selection? "));
 446       trim_spaces(p);
 447       cpr_kill_prompt();
 448       *trust_depth=atoi(p);
 449       xfree(p);
 450     }
 451
 452   tty_printf("\n");
 453
 454   tty_printf(_("Please enter a domain to restrict this signature, "
 455                "or enter for none.\n"));
 456
 457   tty_printf("\n");
 458
 459   p=cpr_get("trustsig_prompt.trust_regexp",_("Your selection? "));
 460   trim_spaces(p);
 461   cpr_kill_prompt();
 462
 463   if(strlen(p)>0)
 464     {
 465       char *q=p;
 466       int regexplen=100,ind;
 467
 468       *regexp=xmalloc(regexplen);
 469
 470       /* Now mangle the domain the user entered into a regexp.  To do
 471          this, \-escape everything that isn't alphanumeric, and attach
 472          "<[^>]+[@.]" to the front, and ">$" to the end. */
 473
 474       strcpy(*regexp,"<[^>]+[@.]");
 475       ind=strlen(*regexp);
 476
 477       while(*q)
 478         {
 479           if(!((*q>='A' && *q<='Z')
 480                || (*q>='a' && *q<='z') || (*q>='0' && *q<='9')))
 481             (*regexp)[ind++]='\\';
 482
 483           (*regexp)[ind++]=*q;
 484
 485           if((regexplen-ind)<3)
 486             {
 487               regexplen+=100;
 488               *regexp=xrealloc(*regexp,regexplen);
 489             }
 490
 491           q++;
 492         }
 493
 494       (*regexp)[ind]='\0';
 495       strcat(*regexp,">$");
 496     }
 497
 498   xfree(p);
 499   tty_printf("\n");
 500 }
 501
 502 /****************
 503  * Loop over all locusr and and sign the uids after asking.
 504  * If no user id is marked, all user ids will be signed;
 505  * if some user_ids are marked those will be signed.
 506  */
 507 static int
 508 sign_uids( KBNODE keyblock, strlist_t locusr, int *ret_modified,
 509            int local, int nonrevocable, int trust, int interactive )
 510 {
 511     int rc = 0;
 512     SK_LIST sk_list = NULL;
 513     SK_LIST sk_rover = NULL;
 514     PKT_secret_key *sk = NULL;
 515     KBNODE node, uidnode;
 516     PKT_public_key *primary_pk=NULL;
 517     int select_all = !count_selected_uids(keyblock) || interactive;
 518     int all_v3=1;
 519
 520     /* Are there any non-v3 sigs on this key already? */
 521     if(PGP2)
 522       for(node=keyblock;node;node=node->next)
 523         if(node->pkt->pkttype==PKT_SIGNATURE &&
 524            node->pkt->pkt.signature->version>3)
 525           {
 526             all_v3=0;
 527             break;
 528           }
 529
 530     /* build a list of all signators.
 531      *
 532      * We use the CERT flag to request the primary which must always
 533      * be one which is capable of signing keys.  I can't see a reason
 534      * why to sign keys using a subkey.  Implementation of USAGE_CERT
 535      * is just a hack in getkey.c and does not mean that a subkey
 536      * marked as certification capable will be used. */
 537     rc=build_sk_list( locusr, &sk_list, 0, PUBKEY_USAGE_CERT);
 538     if( rc )
 539         goto leave;
 540
 541     /* loop over all signators */
 542     for( sk_rover = sk_list; sk_rover; sk_rover = sk_rover->next ) {
 543         u32 sk_keyid[2],pk_keyid[2];
 544         char *p,*trust_regexp=NULL;
 545         int force_v4=0,class=0,selfsig=0;
 546         u32 duration=0,timestamp=0;
 547         byte trust_depth=0,trust_value=0;
 548
 549         if(local || nonrevocable || trust ||
 550            opt.cert_policy_url || opt.cert_notations)
 551           force_v4=1;
 552
 553         /* we have to use a copy of the sk, because make_keysig_packet
 554          * may remove the protection from sk and if we did other
 555          * changes to the secret key, we would save the unprotected
 556          * version */
 557         if( sk )
 558             free_secret_key(sk);
 559         sk = copy_secret_key( NULL, sk_rover->sk );
 560         keyid_from_sk( sk, sk_keyid );
 561         /* set mark A for all selected user ids */
 562         for( node=keyblock; node; node = node->next ) {
 563             if( select_all || (node->flag & NODFLG_SELUID) )
 564                 node->flag |= NODFLG_MARK_A;
 565             else
 566                 node->flag &= ~NODFLG_MARK_A;
 567         }
 568         /* reset mark for uids which are already signed */
 569         uidnode = NULL;
 570         for( node=keyblock; node; node = node->next ) {
 571             if( node->pkt->pkttype == PKT_PUBLIC_KEY ) {
 572                 primary_pk=node->pkt->pkt.public_key;
 573                 keyid_from_pk( primary_pk, pk_keyid );
 574
 575                 /* Is this a self-sig? */
 576                 if(pk_keyid[0]==sk_keyid[0] && pk_keyid[1]==sk_keyid[1])
 577                   {
 578                     selfsig=1;
 579                     /* Do not force a v4 sig here, otherwise it would
 580                        be difficult to remake a v3 selfsig.  If this
 581                        is a v3->v4 promotion case, then we set
 582                        force_v4 later anyway. */
 583                     force_v4=0;
 584                   }
 585             }
 586             else if( node->pkt->pkttype == PKT_USER_ID )
 587               {
 588                 uidnode = (node->flag & NODFLG_MARK_A)? node : NULL;
 589                 if(uidnode)
 590                   {
 591                     int yesreally=0;
 592                     char *user=utf8_to_native(uidnode->pkt->pkt.user_id->name,
 593                                               uidnode->pkt->pkt.user_id->len,
 594                                               0);
 595
 596                     if(uidnode->pkt->pkt.user_id->is_revoked)
 597                       {
 598                         tty_printf(_("User ID \"%s\" is revoked."),user);
 599
 600                         if(selfsig)
 601                           tty_printf("\n");
 602                         else if(opt.expert)
 603                           {
 604                             tty_printf("\n");
 605                             /* No, so remove the mark and continue */
 606                             if(!cpr_get_answer_is_yes("sign_uid.revoke_okay",
 607                                                       _("Are you sure you "
 608                                                         "still want to sign "
 609                                                         "it? (y/N) ")))
 610                               {
 611                                 uidnode->flag &= ~NODFLG_MARK_A;
 612                                 uidnode=NULL;
 613                               }
 614                             else if(interactive)
 615                               yesreally=1;
 616                           }
 617                         else
 618                           {
 619                             uidnode->flag &= ~NODFLG_MARK_A;
 620                             uidnode=NULL;
 621                             tty_printf(_("  Unable to sign.\n"));
 622                           }
 623                       }
 624                     else if(uidnode->pkt->pkt.user_id->is_expired)
 625                       {
 626                         tty_printf(_("User ID \"%s\" is expired."),user);
 627
 628                         if(selfsig)
 629                           tty_printf("\n");
 630                         else if(opt.expert)
 631                           {
 632                             tty_printf("\n");
 633                             /* No, so remove the mark and continue */
 634                             if(!cpr_get_answer_is_yes("sign_uid.expire_okay",
 635                                                       _("Are you sure you "
 636                                                         "still want to sign "
 637                                                         "it? (y/N) ")))
 638                               {
 639                                 uidnode->flag &= ~NODFLG_MARK_A;
 640                                 uidnode=NULL;
 641                               }
 642                             else if(interactive)
 643                               yesreally=1;
 644                           }
 645                         else
 646                           {
 647                             uidnode->flag &= ~NODFLG_MARK_A;
 648                             uidnode=NULL;
 649                             tty_printf(_("  Unable to sign.\n"));
 650                           }
 651                       }
 652                     else if(!uidnode->pkt->pkt.user_id->created && !selfsig)
 653                       {
 654                         tty_printf(_("User ID \"%s\" is not self-signed."),
 655                                    user);
 656
 657                         if(opt.expert)
 658                           {
 659                             tty_printf("\n");
 660                             /* No, so remove the mark and continue */
 661                             if(!cpr_get_answer_is_yes("sign_uid.nosig_okay",
 662                                                       _("Are you sure you "
 663                                                         "still want to sign "
 664                                                         "it? (y/N) ")))
 665                               {
 666                                 uidnode->flag &= ~NODFLG_MARK_A;
 667                                 uidnode=NULL;
 668                               }
 669                             else if(interactive)
 670                               yesreally=1;
 671                           }
 672                         else
 673                           {
 674                             uidnode->flag &= ~NODFLG_MARK_A;
 675                             uidnode=NULL;
 676                             tty_printf(_("  Unable to sign.\n"));
 677                           }
 678                       }
 679
 680                     if(uidnode && interactive && !yesreally)
 681                       {
 682                         tty_printf(_("User ID \"%s\" is signable.  "),user);
 683                         if(!cpr_get_answer_is_yes("sign_uid.sign_okay",
 684                                                   _("Sign it? (y/N) ")))
 685                           {
 686                             uidnode->flag &= ~NODFLG_MARK_A;
 687                             uidnode=NULL;
 688                           }
 689                       }
 690
 691                     xfree(user);
 692                   }
 693               }
 694             else if( uidnode && node->pkt->pkttype == PKT_SIGNATURE
 695                 && (node->pkt->pkt.signature->sig_class&~3) == 0x10 ) {
 696                 if( sk_keyid[0] == node->pkt->pkt.signature->keyid[0]
 697                     && sk_keyid[1] == node->pkt->pkt.signature->keyid[1] ) {
 698                     char buf[50];
 699                     char *user=utf8_to_native(uidnode->pkt->pkt.user_id->name,
 700                                               uidnode->pkt->pkt.user_id->len,
 701                                               0);
 702
 703                     /* It's a v3 self-sig.  Make it into a v4 self-sig? */
 704                     if(node->pkt->pkt.signature->version<4 && selfsig)
 705                       {
 706                         tty_printf(_("The self-signature on \"%s\"\n"
 707                                      "is a PGP 2.x-style signature.\n"),user);
 708
 709                         /* Note that the regular PGP2 warning below
 710                            still applies if there are no v4 sigs on
 711                            this key at all. */
 712
 713                         if(opt.expert)
 714                           if(cpr_get_answer_is_yes("sign_uid.v4_promote_okay",
 715                                                    _("Do you want to promote "
 716                                                      "it to an OpenPGP self-"
 717                                                      "signature? (y/N) ")))
 718                             {
 719                               force_v4=1;
 720                               node->flag|=NODFLG_DELSIG;
 721                               xfree(user);
 722                               continue;
 723                             }
 724                       }
 725
 726                     /* Is the current signature expired? */
 727                     if(node->pkt->pkt.signature->flags.expired)
 728                       {
 729                         tty_printf(_("Your current signature on \"%s\"\n"
 730                                      "has expired.\n"),user);
 731
 732                         if(cpr_get_answer_is_yes("sign_uid.replace_expired_okay",
 733                                                  _("Do you want to issue a "
 734                                                    "new signature to replace "
 735                                                    "the expired one? (y/N) ")))
 736                           {
 737                             /* Mark these for later deletion.  We
 738                                don't want to delete them here, just in
 739                                case the replacement signature doesn't
 740                                happen for some reason.  We only delete
 741                                these after the replacement is already
 742                                in place. */
 743
 744                             node->flag|=NODFLG_DELSIG;
 745                             xfree(user);
 746                             continue;
 747                           }
 748                       }
 749
 750                     if(!node->pkt->pkt.signature->flags.exportable && !local)
 751                       {
 752                         /* It's a local sig, and we want to make a
 753                            exportable sig. */
 754                         tty_printf(_("Your current signature on \"%s\"\n"
 755                                      "is a local signature.\n"),user);
 756
 757                         if(cpr_get_answer_is_yes("sign_uid.local_promote_okay",
 758                                                  _("Do you want to promote "
 759                                                    "it to a full exportable "
 760                                                    "signature? (y/N) ")))
 761                           {
 762                             /* Mark these for later deletion.  We
 763                                don't want to delete them here, just in
 764                                case the replacement signature doesn't
 765                                happen for some reason.  We only delete
 766                                these after the replacement is already
 767                                in place. */
 768
 769                             node->flag|=NODFLG_DELSIG;
 770                             xfree(user);
 771                             continue;
 772                           }
 773                       }
 774
 775                     /* Fixme: see whether there is a revocation in which
 776                      * case we should allow to sign it again. */
 777                     if (!node->pkt->pkt.signature->flags.exportable && local)
 778                       tty_printf(_(
 779                               "\"%s\" was already locally signed by key %s\n"),
 780                                  user,keystr_from_sk(sk));
 781                     else
 782                       tty_printf(_("\"%s\" was already signed by key %s\n"),
 783                                  user,keystr_from_sk(sk));
 784
 785                     if(opt.expert
 786                        && cpr_get_answer_is_yes("sign_uid.dupe_okay",
 787                                                 _("Do you want to sign it "
 788                                                   "again anyway? (y/N) ")))
 789                       {
 790                         /* Don't delete the old sig here since this is
 791                            an --expert thing. */
 792                         xfree(user);
 793                         continue;
 794                       }
 795
 796                     sprintf (buf, "%08lX%08lX",
 797                              (ulong)sk->keyid[0], (ulong)sk->keyid[1] );
 798                     write_status_text (STATUS_ALREADY_SIGNED, buf);
 799                     uidnode->flag &= ~NODFLG_MARK_A; /* remove mark */
 800
 801                     xfree(user);
 802                 }
 803             }
 804         }
 805
 806         /* check whether any uids are left for signing */
 807         if( !count_uids_with_flag(keyblock, NODFLG_MARK_A) )
 808           {
 809             tty_printf(_("Nothing to sign with key %s\n"),keystr_from_sk(sk));
 810             continue;
 811           }
 812
 813         /* Ask whether we really should sign these user id(s) */
 814         tty_printf("\n");
 815         show_key_with_all_names( keyblock, 1, 0, 1, 0, 0 );
 816         tty_printf("\n");
 817
 818         if(primary_pk->expiredate && !selfsig)
 819           {
 820             u32 now=make_timestamp();
 821
 822             if(primary_pk->expiredate<=now)
 823               {
 824                 tty_printf(_("This key has expired!"));
 825
 826                 if(opt.expert)
 827                   {
 828                     tty_printf("  ");
 829                     if(!cpr_get_answer_is_yes("sign_uid.expired_okay",
 830                                               _("Are you sure you still "
 831                                                 "want to sign it? (y/N) ")))
 832                       continue;
 833                   }
 834                 else
 835                   {
 836                     tty_printf(_("  Unable to sign.\n"));
 837                     continue;
 838                   }
 839               }
 840             else
 841               {
 842                 tty_printf(_("This key is due to expire on %s.\n"),
 843                            expirestr_from_pk(primary_pk));
 844
 845                 if(opt.ask_cert_expire)
 846                   {
 847                     char *answer=cpr_get("sign_uid.expire",
 848                                          _("Do you want your signature to "
 849                                            "expire at the same time? (Y/n) "));
 850                     if(answer_is_yes_no_default(answer,1))
 851                       {
 852                         /* This fixes the signature timestamp we're
 853                            going to make as now.  This is so the
 854                            expiration date is exactly correct, and not
 855                            a few seconds off (due to the time it takes
 856                            to answer the questions, enter the
 857                            passphrase, etc). */
 858                         timestamp=now;
 859                         duration=primary_pk->expiredate-now;
 860                         force_v4=1;
 861                       }
 862
 863                     cpr_kill_prompt();
 864                     xfree(answer);
 865                   }
 866               }
 867           }
 868
 869         /* Only ask for duration if we haven't already set it to match
 870            the expiration of the pk */
 871         if(!duration && !selfsig)
 872           {
 873             if(opt.ask_cert_expire)
 874               duration=ask_expire_interval(1,opt.def_cert_expire);
 875             else
 876               duration=parse_expire_string(opt.def_cert_expire);
 877           }
 878
 879         if(duration)
 880           force_v4=1;
 881
 882         /* Is --pgp2 on, it's a v3 key, all the sigs on the key are
 883            currently v3 and we're about to sign it with a v4 sig?  If
 884            so, danger! */
 885         if(PGP2 && all_v3 &&
 886            (sk->version>3 || force_v4) && primary_pk->version<=3)
 887           {
 888             tty_printf(_("You may not make an OpenPGP signature on a "
 889                          "PGP 2.x key while in --pgp2 mode.\n"));
 890             tty_printf(_("This would make the key unusable in PGP 2.x.\n"));
 891
 892             if(opt.expert)
 893               {
 894                 if(!cpr_get_answer_is_yes("sign_uid.v4_on_v3_okay",
 895                                           _("Are you sure you still "
 896                                             "want to sign it? (y/N) ")))
 897                   continue;
 898
 899                 all_v3=0;
 900               }
 901             else
 902               continue;
 903           }
 904
 905         if(selfsig)
 906           ;
 907         else
 908           {
 909             if(opt.batch || !opt.ask_cert_level)
 910               class=0x10+opt.def_cert_level;
 911             else
 912               {
 913                 char *answer;
 914
 915                 tty_printf(_("How carefully have you verified the key you are "
 916                              "about to sign actually belongs\nto the person "
 917                              "named above?  If you don't know what to "
 918                              "answer, enter \"0\".\n"));
 919                 tty_printf("\n");
 920                 tty_printf(_("   (0) I will not answer.%s\n"),
 921                            opt.def_cert_level==0?" (default)":"");
 922                 tty_printf(_("   (1) I have not checked at all.%s\n"),
 923                            opt.def_cert_level==1?" (default)":"");
 924                 tty_printf(_("   (2) I have done casual checking.%s\n"),
 925                            opt.def_cert_level==2?" (default)":"");
 926                 tty_printf(_("   (3) I have done very careful checking.%s\n"),
 927                            opt.def_cert_level==3?" (default)":"");
 928                 tty_printf("\n");
 929
 930                 while(class==0)
 931                   {
 932                     answer = cpr_get("sign_uid.class",_("Your selection? "
 933                                         "(enter `?' for more information): "));
 934                     if(answer[0]=='\0')
 935                       class=0x10+opt.def_cert_level; /* Default */
 936                     else if(ascii_strcasecmp(answer,"0")==0)
 937                       class=0x10; /* Generic */
 938                     else if(ascii_strcasecmp(answer,"1")==0)
 939                       class=0x11; /* Persona */
 940                     else if(ascii_strcasecmp(answer,"2")==0)
 941                       class=0x12; /* Casual */
 942                     else if(ascii_strcasecmp(answer,"3")==0)
 943                       class=0x13; /* Positive */
 944                     else
 945                       tty_printf(_("Invalid selection.\n"));
 946
 947                     xfree(answer);
 948                   }
 949               }
 950
 951             if(trust)
 952               trustsig_prompt(&trust_value,&trust_depth,&trust_regexp);
 953           }
 954
 955         p=get_user_id_native(sk_keyid);
 956         tty_printf(_("Are you sure that you want to sign this key with your\n"
 957                      "key \"%s\" (%s)\n"),p,keystr_from_sk(sk));
 958         xfree(p);
 959
 960         if(selfsig)
 961           {
 962             tty_printf("\n");
 963             tty_printf(_("This will be a self-signature.\n"));
 964
 965             if( local )
 966               {
 967                 tty_printf("\n");
 968                 tty_printf(
 969                          _("WARNING: the signature will not be marked "
 970                            "as non-exportable.\n"));
 971               }
 972
 973             if( nonrevocable )
 974               {
 975                 tty_printf("\n");
 976                 tty_printf(
 977                          _("WARNING: the signature will not be marked "
 978                            "as non-revocable.\n"));
 979               }
 980           }
 981         else
 982           {
 983             if( local )
 984               {
 985                 tty_printf("\n");
 986                 tty_printf(
 987                      _("The signature will be marked as non-exportable.\n"));
 988               }
 989
 990             if( nonrevocable )
 991               {
 992                 tty_printf("\n");
 993                 tty_printf(
 994                       _("The signature will be marked as non-revocable.\n"));
 995               }
 996
 997             switch(class)
 998               {
 999               case 0x11:
1000                 tty_printf("\n");
1001                 tty_printf(_("I have not checked this key at all.\n"));
1002                 break;
1003
1004               case 0x12:
1005                 tty_printf("\n");
1006                 tty_printf(_("I have checked this key casually.\n"));
1007                 break;
1008
1009               case 0x13:
1010                 tty_printf("\n");
1011                 tty_printf(_("I have checked this key very carefully.\n"));
1012                 break;
1013               }
1014           }
1015
1016         tty_printf("\n");
1017
1018         if( opt.batch && opt.answer_yes )
1019           ;
1020         else if( !cpr_get_answer_is_yes("sign_uid.okay",
1021                                         _("Really sign? (y/N) ")) )
1022             continue;
1023
1024         /* now we can sign the user ids */
1025       reloop: /* (must use this, because we are modifing the list) */
1026         primary_pk = NULL;
1027         for( node=keyblock; node; node = node->next ) {
1028             if( node->pkt->pkttype == PKT_PUBLIC_KEY )
1029                 primary_pk = node->pkt->pkt.public_key;
1030             else if( node->pkt->pkttype == PKT_USER_ID
1031                      && (node->flag & NODFLG_MARK_A) ) {
1032                 PACKET *pkt;
1033                 PKT_signature *sig;
1034                 struct sign_attrib attrib;
1035
1036                 assert( primary_pk );
1037                 memset( &attrib, 0, sizeof attrib );
1038                 attrib.non_exportable = local;
1039                 attrib.non_revocable = nonrevocable;
1040                 attrib.trust_depth = trust_depth;
1041                 attrib.trust_value = trust_value;
1042                 attrib.trust_regexp = trust_regexp;
1043                 node->flag &= ~NODFLG_MARK_A;
1044
1045                 /* we force creation of a v4 signature for local
1046                  * signatures, otherwise we would not generate the
1047                  * subpacket with v3 keys and the signature becomes
1048                  * exportable */
1049
1050                 if(selfsig)
1051                   rc = make_keysig_packet( &sig, primary_pk,
1052                                            node->pkt->pkt.user_id,
1053                                            NULL,
1054                                            sk,
1055                                            0x13, 0, force_v4?4:0, 0, 0,
1056                                            keygen_add_std_prefs, primary_pk);
1057                 else
1058                   rc = make_keysig_packet( &sig, primary_pk,
1059                                            node->pkt->pkt.user_id,
1060                                            NULL,
1061                                            sk,
1062                                            class, 0, force_v4?4:0,
1063                                            timestamp, duration,
1064                                            sign_mk_attrib, &attrib );
1065                 if( rc ) {
1066                     log_error(_("signing failed: %s\n"), g10_errstr(rc));
1067                     goto leave;
1068                 }
1069
1070                 *ret_modified = 1; /* we changed the keyblock */
1071                 update_trust = 1;
1072
1073                 pkt = xmalloc_clear( sizeof *pkt );
1074                 pkt->pkttype = PKT_SIGNATURE;
1075                 pkt->pkt.signature = sig;
1076                 insert_kbnode( node, new_kbnode(pkt), PKT_SIGNATURE );
1077                 goto reloop;
1078             }
1079         }
1080
1081         /* Delete any sigs that got promoted */
1082         for( node=keyblock; node; node = node->next )
1083           if( node->flag & NODFLG_DELSIG)
1084             delete_kbnode(node);
1085     } /* end loop over signators */
1086
1087   leave:
1088     release_sk_list( sk_list );
1089     if( sk )
1090         free_secret_key(sk);
1091     return rc;
1092 }
1093
1094
1095
1096 /****************
1097  * Change the passphrase of the primary and all secondary keys.
1098  * We use only one passphrase for all keys.
1099  */
1100 static int
1101 change_passphrase( KBNODE keyblock )
1102 {
1103     int rc = 0;
1104     int changed=0;
1105     KBNODE node;
1106     PKT_secret_key *sk;
1107     char *passphrase = NULL;
1108     int no_primary_secrets = 0;
1109     int any;
1110
1111     node = find_kbnode( keyblock, PKT_SECRET_KEY );
1112     if( !node ) {
1113         log_error("Oops; secret key not found anymore!\n");
1114         goto leave;
1115     }
1116     sk = node->pkt->pkt.secret_key;
1117
1118     for (any = 0, node=keyblock; node; node = node->next) {
1119         if (node->pkt->pkttype == PKT_SECRET_KEY
1120             || node->pkt->pkttype == PKT_SECRET_SUBKEY) {
1121             PKT_secret_key *tmpsk = node->pkt->pkt.secret_key;
1122             if (!(tmpsk->is_protected
1123                   && (tmpsk->protect.s2k.mode == 1001
1124                       || tmpsk->protect.s2k.mode == 1002))) {
1125                 any = 1;
1126                 break;
1127             }
1128         }
1129     }
1130     if (!any) {
1131         tty_printf (_("Key has only stub or on-card key items - "
1132                       "no passphrase to change.\n"));
1133         goto leave;
1134     }
1135
1136     /* See how to handle this key.  */
1137     switch( is_secret_key_protected( sk ) ) {
1138       case -1:
1139         rc = G10ERR_PUBKEY_ALGO;
1140         break;
1141       case 0:
1142         tty_printf(_("This key is not protected.\n"));
1143         break;
1144       default:
1145         if( sk->protect.s2k.mode == 1001 ) {
1146             tty_printf(_("Secret parts of primary key are not available.\n"));
1147             no_primary_secrets = 1;
1148         }
1149         else if( sk->protect.s2k.mode == 1002 ) {
1150             tty_printf(_("Secret parts of primary key are stored on-card.\n"));
1151             no_primary_secrets = 1;
1152         }
1153         else {
1154             u32 keyid[2];
1155
1156             tty_printf(_("Key is protected.\n"));
1157
1158             /* Clear the passphrase cache so that the user is required
1159                to enter the old passphrase.  */
1160             keyid_from_sk (sk, keyid);
1161             passphrase_clear_cache (keyid, NULL, 0);
1162
1163             rc = check_secret_key( sk, 0 );
1164             if( !rc )
1165                 passphrase = get_last_passphrase();
1166         }
1167         break;
1168     }
1169
1170     /* Unprotect all subkeys (use the supplied passphrase or ask)*/
1171     for(node=keyblock; !rc && node; node = node->next ) {
1172         if( node->pkt->pkttype == PKT_SECRET_SUBKEY ) {
1173             PKT_secret_key *subsk = node->pkt->pkt.secret_key;
1174             if ( !(subsk->is_protected
1175                    && (subsk->protect.s2k.mode == 1001
1176                        || subsk->protect.s2k.mode == 1002))) {
1177                 set_next_passphrase( passphrase );
1178                 rc = check_secret_key( subsk, 0 );
1179                 if( !rc && !passphrase )
1180                     passphrase = get_last_passphrase();
1181             }
1182         }
1183     }
1184
1185     if( rc )
1186         tty_printf(_("Can't edit this key: %s\n"), g10_errstr(rc));
1187     else {
1188         DEK *dek = NULL;
1189         STRING2KEY *s2k = xmalloc_secure( sizeof *s2k );
1190         const char *errtext = NULL;
1191
1192         tty_printf(_("Enter the new passphrase for this secret key.\n\n") );
1193
1194         set_next_passphrase( NULL );
1195         for(;;) {
1196             int canceled;
1197
1198             s2k->mode = opt.s2k_mode;
1199             s2k->hash_algo = S2K_DIGEST_ALGO;
1200             dek = passphrase_to_dek( NULL, 0, opt.s2k_cipher_algo,
1201                                      s2k, 2, errtext, &canceled);
1202             if (!dek && canceled) {
1203                 rc = GPG_ERR_CANCELED;
1204                 break;
1205             }
1206             else if( !dek ) {
1207                 errtext = N_("passphrase not correctly repeated; try again");
1208                 tty_printf ("%s.\n", _(errtext));
1209             }
1210             else if( !dek->keylen ) {
1211                 rc = 0;
1212                 tty_printf(_( "You don't want a passphrase -"
1213                             " this is probably a *bad* idea!\n\n"));
1214                 if( cpr_get_answer_is_yes("change_passwd.empty.okay",
1215                                _("Do you really want to do this? (y/N) ")))
1216                   {
1217                     changed++;
1218                     break;
1219                   }
1220             }
1221             else { /* okay */
1222                 rc = 0;
1223                 if( !no_primary_secrets ) {
1224                     sk->protect.algo = dek->algo;
1225                     sk->protect.s2k = *s2k;
1226                     rc = protect_secret_key( sk, dek );
1227                 }
1228                 for(node=keyblock; !rc && node; node = node->next ) {
1229                     if( node->pkt->pkttype == PKT_SECRET_SUBKEY ) {
1230                         PKT_secret_key *subsk = node->pkt->pkt.secret_key;
1231                         if ( !(subsk->is_protected
1232                                && (subsk->protect.s2k.mode == 1001
1233                                    || subsk->protect.s2k.mode == 1002))) {
1234                             subsk->protect.algo = dek->algo;
1235                             subsk->protect.s2k = *s2k;
1236                             rc = protect_secret_key( subsk, dek );
1237                         }
1238                     }
1239                 }
1240                 if( rc )
1241                     log_error("protect_secret_key failed: %s\n",
1242                               g10_errstr(rc) );
1243                 else
1244                   {
1245                     u32 keyid[2];
1246
1247                     /* Clear the cahce again so that the user is
1248                        required to enter the new passphrase at the
1249                        next operation.  */
1250                     keyid_from_sk (sk, keyid);
1251                     passphrase_clear_cache (keyid, NULL, 0);
1252
1253                     changed++;
1254                   }
1255                 break;
1256             }
1257         }
1258         xfree(s2k);
1259         xfree(dek);
1260     }
1261
1262   leave:
1263     xfree( passphrase );
1264     set_next_passphrase( NULL );
1265     return changed && !rc;
1266 }
1267
1268
1269 /****************
1270  * There are some keys out (due to a bug in gnupg), where the sequence
1271  * of the packets is wrong.  This function fixes that.
1272  * Returns: true if the keyblock has been fixed.
1273  *
1274  * Note:  This function does not work if there is more than one user ID.
1275  */
1276 static int
1277 fix_keyblock( KBNODE keyblock )
1278 {
1279     KBNODE node, last, subkey;
1280     int fixed=0;
1281
1282     /* locate key signatures of class 0x10..0x13 behind sub key packets */
1283     for( subkey=last=NULL, node = keyblock; node;
1284                                             last=node, node = node->next ) {
1285         switch( node->pkt->pkttype ) {
1286           case PKT_PUBLIC_SUBKEY:
1287           case PKT_SECRET_SUBKEY:
1288             if( !subkey )
1289                 subkey = last; /* actually it is the one before the subkey */
1290             break;
1291           case PKT_SIGNATURE:
1292             if( subkey ) {
1293                 PKT_signature *sig = node->pkt->pkt.signature;
1294                 if( sig->sig_class >= 0x10 && sig->sig_class <= 0x13 ) {
1295                     log_info(_(
1296                         "moving a key signature to the correct place\n"));
1297                     last->next = node->next;
1298                     node->next = subkey->next;
1299                     subkey->next = node;
1300                     node = last;
1301                     fixed=1;
1302                 }
1303             }
1304             break;
1305           default: break;
1306         }
1307     }
1308
1309     return fixed;
1310 }
1311
1312 static int
1313 parse_sign_type(const char *str,int *localsig,int *nonrevokesig,int *trustsig)
1314 {
1315   const char *p=str;
1316
1317   while(*p)
1318     {
1319       if(ascii_strncasecmp(p,"l",1)==0)
1320         {
1321           *localsig=1;
1322           p++;
1323         }
1324       else if(ascii_strncasecmp(p,"nr",2)==0)
1325         {
1326           *nonrevokesig=1;
1327           p+=2;
1328         }
1329       else if(ascii_strncasecmp(p,"t",1)==0)
1330         {
1331           *trustsig=1;
1332           p++;
1333         }
1334       else
1335         return 0;
1336     }
1337
1338   return 1;
1339 }
1340
1341 \f
1342 /****************
1343  * Menu driven key editor.  If seckey_check is true, then a secret key
1344  * that matches username will be looked for.  If it is false, not all
1345  * commands will be available.
1346  *
1347  * Note: to keep track of some selection we use node->mark MARKBIT_xxxx.
1348  */
1349
1350 /* Need an SK for this command */
1351 #define KEYEDIT_NEED_SK 1
1352 /* Cannot be viewing the SK for this command */
1353 #define KEYEDIT_NOT_SK  2
1354 /* Must be viewing the SK for this command */
1355 #define KEYEDIT_ONLY_SK 4
1356 /* Match the tail of the string */
1357 #define KEYEDIT_TAIL_MATCH 8
1358
1359 enum cmdids
1360   {
1361     cmdNONE = 0,
1362     cmdQUIT, cmdHELP, cmdFPR, cmdLIST, cmdSELUID, cmdCHECK, cmdSIGN,
1363     cmdREVSIG, cmdREVKEY, cmdREVUID, cmdDELSIG, cmdPRIMARY, cmdDEBUG,
1364     cmdSAVE, cmdADDUID, cmdADDPHOTO, cmdDELUID, cmdADDKEY, cmdDELKEY,
1365     cmdADDREVOKER, cmdTOGGLE, cmdSELKEY, cmdPASSWD, cmdTRUST, cmdPREF,
1366     cmdEXPIRE, cmdBACKSIGN, cmdENABLEKEY, cmdDISABLEKEY, cmdSHOWPREF,
1367     cmdSETPREF, cmdPREFKS, cmdNOTATION, cmdINVCMD, cmdSHOWPHOTO, cmdUPDTRUST,
1368     cmdCHKTRUST, cmdADDCARDKEY, cmdKEYTOCARD, cmdBKUPTOCARD, cmdCLEAN,
1369     cmdMINIMIZE, cmdNOP
1370   };
1371
1372 static struct
1373 {
1374   const char *name;
1375   enum cmdids id;
1376   int flags;
1377   const char *desc;
1378 } cmds[] =
1379   {
1380     { "quit"    , cmdQUIT      , 0, N_("quit this menu") },
1381     { "q"       , cmdQUIT      , 0, NULL   },
1382     { "save"    , cmdSAVE      , 0, N_("save and quit") },
1383     { "help"    , cmdHELP      , 0, N_("show this help") },
1384     { "?"       , cmdHELP      , 0, NULL   },
1385     { "fpr"     , cmdFPR       , 0, N_("show key fingerprint") },
1386     { "list"    , cmdLIST      , 0, N_("list key and user IDs") },
1387     { "l"       , cmdLIST      , 0, NULL   },
1388     { "uid"     , cmdSELUID    , 0, N_("select user ID N") },
1389     { "key"     , cmdSELKEY    , 0, N_("select subkey N") },
1390     { "check"   , cmdCHECK     , 0, N_("check signatures") },
1391     { "c"       , cmdCHECK     , 0, NULL },
1392     { "cross-certify", cmdBACKSIGN  , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK, NULL },
1393     { "backsign", cmdBACKSIGN  , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK, NULL },
1394     { "sign"    , cmdSIGN      , KEYEDIT_NOT_SK|KEYEDIT_TAIL_MATCH,
1395       N_("sign selected user IDs [* see below for related commands]") },
1396     { "s"       , cmdSIGN      , KEYEDIT_NOT_SK, NULL },
1397     /* "lsign" and friends will never match since "sign" comes first
1398        and it is a tail match.  They are just here so they show up in
1399        the help menu. */
1400     { "lsign"   , cmdNOP       , 0, N_("sign selected user IDs locally") },
1401     { "tsign"   , cmdNOP       , 0,
1402       N_("sign selected user IDs with a trust signature") },
1403     { "nrsign"  , cmdNOP       , 0,
1404       N_("sign selected user IDs with a non-revocable signature") },
1405
1406     { "debug"   , cmdDEBUG     , 0, NULL },
1407     { "adduid"  , cmdADDUID    , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK,
1408       N_("add a user ID") },
1409     { "addphoto", cmdADDPHOTO  , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK,
1410       N_("add a photo ID") },
1411     { "deluid"  , cmdDELUID    , KEYEDIT_NOT_SK,
1412       N_("delete selected user IDs") },
1413     /* delphoto is really deluid in disguise */
1414     { "delphoto", cmdDELUID    , KEYEDIT_NOT_SK, NULL },
1415
1416     { "addkey"  , cmdADDKEY    , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK,
1417       N_("add a subkey") },
1418
1419 #ifdef ENABLE_CARD_SUPPORT
1420     { "addcardkey", cmdADDCARDKEY , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK,
1421       N_("add a key to a smartcard") },
1422     { "keytocard", cmdKEYTOCARD , KEYEDIT_NEED_SK|KEYEDIT_ONLY_SK,
1423       N_("move a key to a smartcard")},
1424     { "bkuptocard", cmdBKUPTOCARD , KEYEDIT_NEED_SK|KEYEDIT_ONLY_SK,
1425       N_("move a backup key to a smartcard")},
1426 #endif /*ENABLE_CARD_SUPPORT*/
1427
1428     { "delkey"  , cmdDELKEY    , KEYEDIT_NOT_SK,
1429       N_("delete selected subkeys") },
1430     { "addrevoker",cmdADDREVOKER,KEYEDIT_NOT_SK|KEYEDIT_NEED_SK,
1431       N_("add a revocation key") },
1432     { "delsig"  , cmdDELSIG    , KEYEDIT_NOT_SK,
1433       N_("delete signatures from the selected user IDs") },
1434     { "expire"  , cmdEXPIRE    , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK,
1435       N_("change the expiration date for the key or selected subkeys") },
1436     { "primary" , cmdPRIMARY   , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK,
1437       N_("flag the selected user ID as primary")},
1438     { "toggle"  , cmdTOGGLE    , KEYEDIT_NEED_SK,
1439       N_("toggle between the secret and public key listings") },
1440     { "t"       , cmdTOGGLE    , KEYEDIT_NEED_SK, NULL },
1441     { "pref"    , cmdPREF      , KEYEDIT_NOT_SK,
1442       N_("list preferences (expert)")},
1443     { "showpref", cmdSHOWPREF  , KEYEDIT_NOT_SK,
1444       N_("list preferences (verbose)") },
1445     { "setpref" , cmdSETPREF   , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK,
1446       N_("set preference list for the selected user IDs") },
1447     /* Alias */
1448     { "updpref" , cmdSETPREF   , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK, NULL },
1449
1450     { "keyserver",cmdPREFKS    , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK,
1451       N_("set the preferred keyserver URL for the selected user IDs")},
1452     { "notation", cmdNOTATION  , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK,
1453       N_("set a notation for the selected user IDs")},
1454     { "passwd"  , cmdPASSWD    , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK,
1455       N_("change the passphrase") },
1456     /* Alias */
1457     { "password", cmdPASSWD    , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK, NULL },
1458
1459     { "trust"   , cmdTRUST     , KEYEDIT_NOT_SK, N_("change the ownertrust") },
1460     { "revsig"  , cmdREVSIG    , KEYEDIT_NOT_SK,
1461       N_("revoke signatures on the selected user IDs") },
1462     { "revuid"  , cmdREVUID    , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK,
1463       N_("revoke selected user IDs") },
1464     /* Alias */
1465     { "revphoto", cmdREVUID    , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK, NULL },
1466
1467     { "revkey"  , cmdREVKEY    , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK,
1468       N_("revoke key or selected subkeys") },
1469     { "enable"  , cmdENABLEKEY , KEYEDIT_NOT_SK, N_("enable key") },
1470     { "disable" , cmdDISABLEKEY, KEYEDIT_NOT_SK, N_("disable key") },
1471     { "showphoto",cmdSHOWPHOTO , 0, N_("show selected photo IDs") },
1472     { "clean",    cmdCLEAN     , KEYEDIT_NOT_SK,
1473       N_("compact unusable user IDs and remove unusable signatures from key")},
1474     { "minimize", cmdMINIMIZE  , KEYEDIT_NOT_SK,
1475       N_("compact unusable user IDs and remove all signatures from key") },
1476     { NULL, cmdNONE, 0, NULL }
1477   };
1478
1479 #ifdef HAVE_LIBREADLINE
1480
1481 /* These two functions are used by readline for command completion. */
1482
1483 static char *
1484 command_generator(const char *text,int state)
1485 {
1486   static int list_index,len;
1487   const char *name;
1488
1489   /* If this is a new word to complete, initialize now.  This includes
1490      saving the length of TEXT for efficiency, and initializing the
1491      index variable to 0. */
1492   if(!state)
1493     {
1494       list_index=0;
1495       len=strlen(text);
1496     }
1497
1498   /* Return the next partial match */
1499   while((name=cmds[list_index].name))
1500     {
1501       /* Only complete commands that have help text */
1502       if(cmds[list_index++].desc && strncmp(name,text,len)==0)
1503         return strdup(name);
1504     }
1505
1506   return NULL;
1507 }
1508
1509 static char **
1510 keyedit_completion(const char *text, int start, int end)
1511 {
1512   /* If we are at the start of a line, we try and command-complete.
1513      If not, just do nothing for now. */
1514
1515   (void)end;
1516
1517   if(start==0)
1518     return rl_completion_matches(text,command_generator);
1519
1520   rl_attempted_completion_over=1;
1521
1522   return NULL;
1523 }
1524 #endif /* HAVE_LIBREADLINE */
1525
1526
1527 void
1528 keyedit_menu( const char *username, strlist_t locusr,
1529               strlist_t commands, int quiet, int seckey_check )
1530 {
1531     enum cmdids cmd = 0;
1532     int rc = 0;
1533     KBNODE keyblock = NULL;
1534     KEYDB_HANDLE kdbhd = NULL;
1535     KBNODE sec_keyblock = NULL;
1536     KEYDB_HANDLE sec_kdbhd = NULL;
1537     KBNODE cur_keyblock;
1538     char *answer = NULL;
1539     int redisplay = 1;
1540     int modified = 0;
1541     int sec_modified = 0;
1542     int toggle;
1543     int have_commands = !!commands;
1544
1545     if ( opt.command_fd != -1 )
1546         ;
1547     else if( opt.batch && !have_commands )
1548       {
1549         log_error(_("can't do this in batch mode\n"));
1550         goto leave;
1551       }
1552
1553 #ifdef HAVE_W32_SYSTEM
1554     /* Due to Windows peculiarities we need to make sure that the
1555        trustdb stale check is done before we open another file
1556        (i.e. by searching for a key).  In theory we could make sure
1557        that the files are closed after use but the open/close caches
1558        inhibits that and flushing the cache right before the stale
1559        check is not easy to implement.  Thus we take the easy way out
1560        and run the stale check as early as possible.  Note, that for
1561        non- W32 platforms it is run indirectly trough a call to
1562        get_validity ().  */
1563     check_trustdb_stale ();
1564 #endif
1565
1566     /* Get the public key */
1567     rc = get_pubkey_byname (NULL, NULL, username, &keyblock, &kdbhd, 1, 1);
1568     if( rc )
1569         goto leave;
1570     if( fix_keyblock( keyblock ) )
1571         modified++;
1572     if( collapse_uids( &keyblock ) )
1573         modified++;
1574     reorder_keyblock(keyblock);
1575     /* We modified the keyblock, so let's make sure the flags are
1576        right. */
1577     if (modified)
1578       merge_keys_and_selfsig (keyblock);
1579
1580     if(seckey_check)
1581       {/* see whether we have a matching secret key */
1582         PKT_public_key *pk = keyblock->pkt->pkt.public_key;
1583
1584         sec_kdbhd = keydb_new (1);
1585         {
1586             byte afp[MAX_FINGERPRINT_LEN];
1587             size_t an;
1588
1589             fingerprint_from_pk (pk, afp, &an);
1590             while (an < MAX_FINGERPRINT_LEN)
1591                 afp[an++] = 0;
1592             rc = keydb_search_fpr (sec_kdbhd, afp);
1593         }
1594         if (!rc)
1595           {
1596             rc = keydb_get_keyblock (sec_kdbhd, &sec_keyblock);
1597             if (rc)
1598               {
1599                 log_error (_("error reading secret keyblock \"%s\": %s\n"),
1600                            username, g10_errstr(rc));
1601               }
1602             else
1603               {
1604                 merge_keys_and_selfsig( sec_keyblock );
1605                 if( fix_keyblock( sec_keyblock ) )
1606                   sec_modified++;
1607               }
1608           }
1609
1610         if (rc) {
1611             sec_keyblock = NULL;
1612             keydb_release (sec_kdbhd); sec_kdbhd = NULL;
1613             rc = 0;
1614         }
1615
1616         if( sec_keyblock && !quiet )
1617           tty_printf(_("Secret key is available.\n"));
1618     }
1619
1620     toggle = 0;
1621     cur_keyblock = keyblock;
1622     for(;;) { /* main loop */
1623         int i, arg_number, photo;
1624         const char *arg_string = "";
1625         char *p;
1626         PKT_public_key *pk=keyblock->pkt->pkt.public_key;
1627
1628         tty_printf("\n");
1629
1630         if( redisplay && !quiet )
1631           {
1632             show_key_with_all_names( cur_keyblock, 0, 1, 0, 1, 0 );
1633             tty_printf("\n");
1634             redisplay = 0;
1635           }
1636         do {
1637             xfree(answer);
1638             if( have_commands ) {
1639                 if( commands ) {
1640                     answer = xstrdup( commands->d );
1641                     commands = commands->next;
1642                 }
1643                 else if( opt.batch ) {
1644                     answer = xstrdup("quit");
1645                 }
1646                 else
1647                     have_commands = 0;
1648             }
1649             if( !have_commands )
1650               {
1651 #ifdef HAVE_LIBREADLINE
1652                 tty_enable_completion(keyedit_completion);
1653 #endif
1654                 answer = cpr_get_no_help("keyedit.prompt", _("Command> "));
1655                 cpr_kill_prompt();
1656                 tty_disable_completion();
1657               }
1658             trim_spaces(answer);
1659         } while( *answer == '#' );
1660
1661         arg_number = 0; /* Yes, here is the init which egcc complains about */
1662         photo = 0; /* This too */
1663         if( !*answer )
1664             cmd = cmdLIST;
1665         else if( *answer == CONTROL_D )
1666             cmd = cmdQUIT;
1667         else if( digitp(answer ) ) {
1668             cmd = cmdSELUID;
1669             arg_number = atoi(answer);
1670         }
1671         else {
1672             if( (p=strchr(answer,' ')) ) {
1673                 *p++ = 0;
1674                 trim_spaces(answer);
1675                 trim_spaces(p);
1676                 arg_number = atoi(p);
1677                 arg_string = p;
1678             }
1679
1680             for(i=0; cmds[i].name; i++ )
1681               {
1682                 if(cmds[i].flags & KEYEDIT_TAIL_MATCH)
1683                   {
1684                     size_t l=strlen(cmds[i].name);
1685                     size_t a=strlen(answer);
1686                     if(a>=l)
1687                       {
1688                         if(ascii_strcasecmp(&answer[a-l],cmds[i].name)==0)
1689                           {
1690                             answer[a-l]='\0';
1691                             break;
1692                           }
1693                       }
1694                   }
1695                 else if( !ascii_strcasecmp( answer, cmds[i].name ) )
1696                   break;
1697               }
1698             if((cmds[i].flags & KEYEDIT_NEED_SK) && !sec_keyblock )
1699               {
1700                 tty_printf(_("Need the secret key to do this.\n"));
1701                 cmd = cmdNOP;
1702               }
1703             else if(((cmds[i].flags & KEYEDIT_NOT_SK) && sec_keyblock
1704                      && toggle)
1705                     ||((cmds[i].flags & KEYEDIT_ONLY_SK) && sec_keyblock
1706                        && !toggle))
1707               {
1708                 tty_printf(_("Please use the command \"toggle\" first.\n"));
1709                 cmd = cmdNOP;
1710               }
1711             else
1712               cmd = cmds[i].id;
1713         }
1714         switch( cmd )
1715           {
1716           case cmdHELP:
1717             for(i=0; cmds[i].name; i++ )
1718               {
1719                 if((cmds[i].flags & KEYEDIT_NEED_SK) && !sec_keyblock )
1720                   ; /* skip if we do not have the secret key */
1721                 else if( cmds[i].desc )
1722                   tty_printf("%-11s %s\n", cmds[i].name, _(cmds[i].desc) );
1723               }
1724
1725             tty_printf("\n");
1726             tty_printf(_(
1727 "* The `sign' command may be prefixed with an `l' for local "
1728 "signatures (lsign),\n"
1729 "  a `t' for trust signatures (tsign), an `nr' for non-revocable signatures\n"
1730 "  (nrsign), or any combination thereof (ltsign, tnrsign, etc.).\n"));
1731
1732             break;
1733
1734           case cmdLIST:
1735             redisplay = 1;
1736             break;
1737
1738           case cmdFPR:
1739             show_key_and_fingerprint( keyblock );
1740             break;
1741
1742           case cmdSELUID:
1743             if(strlen(arg_string)==NAMEHASH_LEN*2)
1744               redisplay=menu_select_uid_namehash(cur_keyblock,arg_string);
1745             else
1746               redisplay=menu_select_uid(cur_keyblock,arg_number);
1747             break;
1748
1749           case cmdSELKEY:
1750             if( menu_select_key( cur_keyblock, arg_number ) )
1751                 redisplay = 1;
1752             break;
1753
1754           case cmdCHECK:
1755             /* we can only do this with the public key becuase the
1756              * check functions can't cope with secret keys and it
1757              * is questionable whether this would make sense at all */
1758             check_all_keysigs( keyblock, count_selected_uids(keyblock) );
1759             break;
1760
1761           case cmdSIGN: /* sign (only the public key) */
1762             {
1763               int localsig=0,nonrevokesig=0,trustsig=0,interactive=0;
1764
1765               if( pk->is_revoked )
1766                 {
1767                   tty_printf(_("Key is revoked."));
1768
1769                   if(opt.expert)
1770                     {
1771                       tty_printf("  ");
1772                       if(!cpr_get_answer_is_yes("keyedit.sign_revoked.okay",
1773                                                 _("Are you sure you still want"
1774                                                   " to sign it? (y/N) ")))
1775                         break;
1776                     }
1777                   else
1778                     {
1779                       tty_printf(_("  Unable to sign.\n"));
1780                       break;
1781                     }
1782                 }
1783
1784               if(count_uids(keyblock) > 1 && !count_selected_uids(keyblock)
1785                  && !cpr_get_answer_is_yes("keyedit.sign_all.okay",
1786                                            _("Really sign all user IDs?"
1787                                              " (y/N) ")))
1788                 {
1789                   if(opt.interactive)
1790                     interactive=1;
1791                   else
1792                     {
1793                       tty_printf(_("Hint: Select the user IDs to sign\n"));
1794                       have_commands = 0;
1795                       break;
1796                     }
1797
1798                 }
1799               /* What sort of signing are we doing? */
1800               if(!parse_sign_type(answer,&localsig,&nonrevokesig,&trustsig))
1801                 {
1802                   tty_printf(_("Unknown signature type `%s'\n"),answer);
1803                   break;
1804                 }
1805
1806               sign_uids(keyblock, locusr, &modified,
1807                         localsig, nonrevokesig, trustsig, interactive);
1808             }
1809             break;
1810
1811           case cmdDEBUG:
1812             dump_kbnode( cur_keyblock );
1813             break;
1814
1815           case cmdTOGGLE:
1816             toggle = !toggle;
1817             cur_keyblock = toggle? sec_keyblock : keyblock;
1818             redisplay = 1;
1819             break;
1820
1821           case cmdADDPHOTO:
1822             if (RFC2440 || RFC1991 || PGP2)
1823               {
1824                 tty_printf(
1825                    _("This command is not allowed while in %s mode.\n"),
1826                    compliance_option_string());
1827                 break;
1828               }
1829             photo=1;
1830             /* fall through */
1831
1832           case cmdADDUID:
1833             if( menu_adduid( keyblock, sec_keyblock, photo, arg_string ) )
1834               {
1835                 update_trust = 1;
1836                 redisplay = 1;
1837                 sec_modified = modified = 1;
1838                 merge_keys_and_selfsig( sec_keyblock );
1839                 merge_keys_and_selfsig( keyblock );
1840               }
1841             break;
1842
1843           case cmdDELUID: {
1844                 int n1;
1845
1846                 if( !(n1=count_selected_uids(keyblock)) )
1847                     tty_printf(_("You must select at least one user ID.\n"));
1848                 else if( real_uids_left(keyblock) < 1 )
1849                     tty_printf(_("You can't delete the last user ID!\n"));
1850                 else if( cpr_get_answer_is_yes("keyedit.remove.uid.okay",
1851                 n1 > 1? _("Really remove all selected user IDs? (y/N) ")
1852                             : _("Really remove this user ID? (y/N) ")
1853                        ) ) {
1854                     menu_deluid( keyblock, sec_keyblock );
1855                     redisplay = 1;
1856                     modified = 1;
1857                     if( sec_keyblock )
1858                        sec_modified = 1;
1859                 }
1860             }
1861             break;
1862
1863           case cmdDELSIG: {
1864                 int n1;
1865
1866                 if( !(n1=count_selected_uids(keyblock)) )
1867                     tty_printf(_("You must select at least one user ID.\n"));
1868                 else if( menu_delsig( keyblock ) ) {
1869                     /* no redisplay here, because it may scroll away some
1870                      * status output of delsig */
1871                     modified = 1;
1872                 }
1873             }
1874             break;
1875
1876           case cmdADDKEY:
1877             if( generate_subkeypair( keyblock, sec_keyblock ) ) {
1878                 redisplay = 1;
1879                 sec_modified = modified = 1;
1880                 merge_keys_and_selfsig( sec_keyblock );
1881                 merge_keys_and_selfsig( keyblock );
1882             }
1883             break;
1884
1885 #ifdef ENABLE_CARD_SUPPORT
1886           case cmdADDCARDKEY:
1887             if (card_generate_subkey (keyblock, sec_keyblock)) {
1888                 redisplay = 1;
1889                 sec_modified = modified = 1;
1890                 merge_keys_and_selfsig( sec_keyblock );
1891                 merge_keys_and_selfsig( keyblock );
1892             }
1893             break;
1894
1895         case cmdKEYTOCARD:
1896           {
1897             KBNODE node=NULL;
1898             switch ( count_selected_keys (sec_keyblock) )
1899               {
1900               case 0:
1901                 if (cpr_get_answer_is_yes("keyedit.keytocard.use_primary",
1902                                      _("Really move the primary key? (y/N) ")))
1903                   node = sec_keyblock;
1904                 break;
1905               case 1:
1906                 for (node = sec_keyblock; node; node = node->next )
1907                   {
1908                     if (node->pkt->pkttype == PKT_SECRET_SUBKEY
1909                         && node->flag & NODFLG_SELKEY)
1910                       break;
1911                   }
1912                 break;
1913               default:
1914                 tty_printf(_("You must select exactly one key.\n"));
1915                 break;
1916               }
1917             if (node)
1918               {
1919                 PKT_public_key *xxpk = find_pk_from_sknode (keyblock, node);
1920                 if (card_store_subkey (node, xxpk?xxpk->pubkey_usage:0))
1921                   {
1922                     redisplay = 1;
1923                     sec_modified = 1;
1924                   }
1925               }
1926           }
1927           break;
1928
1929         case cmdBKUPTOCARD:
1930           {
1931             /* Ask for a filename, check whether this is really a
1932                backup key as generated by the card generation, parse
1933                that key and store it on card. */
1934             KBNODE node;
1935             const char *fname;
1936             PACKET *pkt;
1937             IOBUF a;
1938
1939             fname = arg_string;
1940             if (!*fname)
1941               {
1942                 tty_printf (_("Command expects a filename argument\n"));
1943                 break;
1944               }
1945
1946             /* Open that file.  */
1947             a = iobuf_open (fname);
1948             if (a && is_secured_file (iobuf_get_fd (a)))
1949               {
1950                 iobuf_close (a);
1951                 a = NULL;
1952                 errno = EPERM;
1953               }
1954             if (!a)
1955               {
1956                 tty_printf (_("Can't open `%s': %s\n"),
1957                             fname, strerror(errno));
1958                 break;
1959               }
1960
1961             /* Parse and check that file.  */
1962             pkt = xmalloc (sizeof *pkt);
1963             init_packet (pkt);
1964             rc = parse_packet (a, pkt);
1965             iobuf_close (a);
1966             iobuf_ioctl (NULL, 2, 0, (char*)fname); /* (invalidate cache).  */
1967             if (!rc
1968                 && pkt->pkttype != PKT_SECRET_KEY
1969                 && pkt->pkttype != PKT_SECRET_SUBKEY)
1970               rc = G10ERR_NO_SECKEY;
1971             if (rc)
1972               {
1973                 tty_printf(_("Error reading backup key from `%s': %s\n"),
1974                            fname, g10_errstr (rc));
1975                 free_packet (pkt);
1976                 xfree (pkt);
1977                 break;
1978               }
1979             node = new_kbnode (pkt);
1980
1981             /* Store it.  */
1982             if (card_store_subkey (node, 0))
1983               {
1984                 redisplay = 1;
1985                 sec_modified = 1;
1986               }
1987             release_kbnode (node);
1988           }
1989           break;
1990
1991 #endif /* ENABLE_CARD_SUPPORT */
1992
1993           case cmdDELKEY: {
1994                 int n1;
1995
1996                 if( !(n1=count_selected_keys( keyblock )) )
1997                     tty_printf(_("You must select at least one key.\n"));
1998                 else if( !cpr_get_answer_is_yes( "keyedit.remove.subkey.okay",
1999                        n1 > 1?
2000                    _("Do you really want to delete the selected keys? (y/N) "):
2001                         _("Do you really want to delete this key? (y/N) ")
2002                        ))
2003                     ;
2004                 else {
2005                     menu_delkey( keyblock, sec_keyblock );
2006                     redisplay = 1;
2007                     modified = 1;
2008                     if( sec_keyblock )
2009                        sec_modified = 1;
2010                 }
2011             }
2012             break;
2013
2014           case cmdADDREVOKER:
2015             {
2016               int sensitive=0;
2017
2018               if(ascii_strcasecmp(arg_string,"sensitive")==0)
2019                 sensitive=1;
2020               if( menu_addrevoker( keyblock, sec_keyblock, sensitive ) ) {
2021                 redisplay = 1;
2022                 sec_modified = modified = 1;
2023                 merge_keys_and_selfsig( sec_keyblock );
2024                 merge_keys_and_selfsig( keyblock );
2025               }
2026             }
2027             break;
2028
2029           case cmdREVUID: {
2030                 int n1;
2031
2032                 if( !(n1=count_selected_uids(keyblock)) )
2033                     tty_printf(_("You must select at least one user ID.\n"));
2034                 else if( cpr_get_answer_is_yes(
2035                             "keyedit.revoke.uid.okay",
2036                        n1 > 1? _("Really revoke all selected user IDs? (y/N) ")
2037                              : _("Really revoke this user ID? (y/N) ")
2038                        ) ) {
2039                   if(menu_revuid(keyblock,sec_keyblock))
2040                     {
2041                       modified=1;
2042                       redisplay=1;
2043                     }
2044                 }
2045             }
2046             break;
2047
2048           case cmdREVKEY:
2049             {
2050               int n1;
2051
2052               if( !(n1=count_selected_keys( keyblock )) )
2053                 {
2054                   if(cpr_get_answer_is_yes("keyedit.revoke.subkey.okay",
2055                                            _("Do you really want to revoke"
2056                                              " the entire key? (y/N) ")))
2057                     {
2058                       if(menu_revkey(keyblock,sec_keyblock))
2059                         modified=1;
2060
2061                       redisplay=1;
2062                     }
2063                 }
2064               else if(cpr_get_answer_is_yes("keyedit.revoke.subkey.okay",
2065                                             n1 > 1?
2066                                             _("Do you really want to revoke"
2067                                               " the selected subkeys? (y/N) "):
2068                                             _("Do you really want to revoke"
2069                                               " this subkey? (y/N) ")))
2070                 {
2071                   if( menu_revsubkey( keyblock, sec_keyblock ) )
2072                     modified = 1;
2073
2074                   redisplay = 1;
2075                 }
2076
2077               if(modified)
2078                 merge_keys_and_selfsig( keyblock );
2079             }
2080             break;
2081
2082           case cmdEXPIRE:
2083             if( menu_expire( keyblock, sec_keyblock ) )
2084               {
2085                 merge_keys_and_selfsig( sec_keyblock );
2086                 merge_keys_and_selfsig( keyblock );
2087                 sec_modified = 1;
2088                 modified = 1;
2089                 redisplay = 1;
2090               }
2091             break;
2092
2093           case cmdBACKSIGN:
2094             if(menu_backsign(keyblock,sec_keyblock))
2095               {
2096                 sec_modified = 1;
2097                 modified = 1;
2098                 redisplay = 1;
2099               }
2100             break;
2101
2102           case cmdPRIMARY:
2103             if( menu_set_primary_uid ( keyblock, sec_keyblock ) ) {
2104                 merge_keys_and_selfsig( keyblock );
2105                 modified = 1;
2106                 redisplay = 1;
2107             }
2108             break;
2109
2110           case cmdPASSWD:
2111             if( change_passphrase( sec_keyblock ) )
2112                 sec_modified = 1;
2113             break;
2114
2115           case cmdTRUST:
2116             if(opt.trust_model==TM_EXTERNAL)
2117               {
2118                 tty_printf (_("Owner trust may not be set while "
2119                               "using a user provided trust database\n"));
2120                 break;
2121               }
2122
2123             show_key_with_all_names( keyblock, 0, 0, 0, 1, 0 );
2124             tty_printf("\n");
2125             if( edit_ownertrust( find_kbnode( keyblock,
2126                                  PKT_PUBLIC_KEY )->pkt->pkt.public_key, 1 ) ) {
2127                 redisplay = 1;
2128                 /* No real need to set update_trust here as
2129                    edit_ownertrust() calls revalidation_mark()
2130                    anyway. */
2131                 update_trust=1;
2132             }
2133             break;
2134
2135           case cmdPREF:
2136             {
2137               int count=count_selected_uids(keyblock);
2138               assert(keyblock->pkt->pkttype==PKT_PUBLIC_KEY);
2139               show_names(keyblock,keyblock->pkt->pkt.public_key,
2140                          count?NODFLG_SELUID:0,1);
2141             }
2142             break;
2143
2144           case cmdSHOWPREF:
2145             {
2146               int count=count_selected_uids(keyblock);
2147               assert(keyblock->pkt->pkttype==PKT_PUBLIC_KEY);
2148               show_names(keyblock,keyblock->pkt->pkt.public_key,
2149                          count?NODFLG_SELUID:0,2);
2150             }
2151             break;
2152
2153           case cmdSETPREF:
2154             {
2155               PKT_user_id *tempuid;
2156
2157               keygen_set_std_prefs(!*arg_string?"default" : arg_string, 0);
2158
2159               tempuid=keygen_get_std_prefs();
2160               tty_printf(_("Set preference list to:\n"));
2161               show_prefs(tempuid,NULL,1);
2162               free_user_id(tempuid);
2163
2164               if(cpr_get_answer_is_yes("keyedit.setpref.okay",
2165                                        count_selected_uids (keyblock)?
2166                                        _("Really update the preferences"
2167                                          " for the selected user IDs? (y/N) "):
2168                                        _("Really update the preferences? (y/N) ")))
2169                 {
2170                   if ( menu_set_preferences (keyblock, sec_keyblock) )
2171                     {
2172                       merge_keys_and_selfsig (keyblock);
2173                       modified = 1;
2174                       redisplay = 1;
2175                     }
2176                 }
2177             }
2178             break;
2179
2180           case cmdPREFKS:
2181             if( menu_set_keyserver_url ( *arg_string?arg_string:NULL,
2182                                          keyblock, sec_keyblock ) )
2183               {
2184                 merge_keys_and_selfsig( keyblock );
2185                 modified = 1;
2186                 redisplay = 1;
2187               }
2188             break;
2189
2190           case cmdNOTATION:
2191             if( menu_set_notation ( *arg_string?arg_string:NULL,
2192                                     keyblock, sec_keyblock ) )
2193               {
2194                 merge_keys_and_selfsig( keyblock );
2195                 modified = 1;
2196                 redisplay = 1;
2197               }
2198             break;
2199
2200           case cmdNOP:
2201             break;
2202
2203           case cmdREVSIG:
2204             if( menu_revsig( keyblock ) ) {
2205                 redisplay = 1;
2206                 modified = 1;
2207             }
2208             break;
2209
2210           case cmdENABLEKEY:
2211           case cmdDISABLEKEY:
2212             if( enable_disable_key( keyblock, cmd == cmdDISABLEKEY ) ) {
2213                 redisplay = 1;
2214                 modified = 1;
2215             }
2216             break;
2217
2218           case cmdSHOWPHOTO:
2219             menu_showphoto(keyblock);
2220             break;
2221
2222           case cmdCLEAN:
2223             if(menu_clean(keyblock,0))
2224               redisplay=modified=1;
2225             break;
2226
2227           case cmdMINIMIZE:
2228             if(menu_clean(keyblock,1))
2229               redisplay=modified=1;
2230             break;
2231
2232           case cmdQUIT:
2233             if( have_commands )
2234                 goto leave;
2235             if( !modified && !sec_modified )
2236                 goto leave;
2237             if( !cpr_get_answer_is_yes("keyedit.save.okay",
2238                                         _("Save changes? (y/N) ")) ) {
2239                 if( cpr_enabled()
2240                     || cpr_get_answer_is_yes("keyedit.cancel.okay",
2241                                              _("Quit without saving? (y/N) ")))
2242                     goto leave;
2243                 break;
2244             }
2245             /* fall thru */
2246           case cmdSAVE:
2247             if( modified || sec_modified  ) {
2248                 if( modified ) {
2249                     rc = keydb_update_keyblock (kdbhd, keyblock);
2250                     if( rc ) {
2251                         log_error(_("update failed: %s\n"), g10_errstr(rc) );
2252                         break;
2253                     }
2254                 }
2255                 if( sec_modified ) {
2256                     rc = keydb_update_keyblock (sec_kdbhd, sec_keyblock );
2257                     if( rc ) {
2258                         log_error( _("update secret failed: %s\n"),
2259                                    g10_errstr(rc) );
2260                         break;
2261                     }
2262                 }
2263             }
2264             else
2265                 tty_printf(_("Key not changed so no update needed.\n"));
2266
2267             if( update_trust )
2268               {
2269                 revalidation_mark ();
2270                 update_trust=0;
2271               }
2272             goto leave;
2273
2274           case cmdINVCMD:
2275           default:
2276             tty_printf("\n");
2277             tty_printf(_("Invalid command  (try \"help\")\n"));
2278             break;
2279         }
2280     } /* end main loop */
2281
2282   leave:
2283     release_kbnode( keyblock );
2284     release_kbnode( sec_keyblock );
2285     keydb_release (kdbhd);
2286     xfree(answer);
2287 }
2288
2289 static void
2290 tty_print_notations(int indent,PKT_signature *sig)
2291 {
2292   int first=1;
2293   struct notation *notation,*nd;
2294
2295   if(indent<0)
2296     {
2297       first=0;
2298       indent=-indent;
2299     }
2300
2301   notation=sig_to_notation(sig);
2302
2303   for(nd=notation;nd;nd=nd->next)
2304     {
2305       if(!first)
2306         tty_printf("%*s",indent,"");
2307       else
2308         first=0;
2309
2310       tty_print_utf8_string(nd->name,strlen(nd->name));
2311       tty_printf("=");
2312       tty_print_utf8_string(nd->value,strlen(nd->value));
2313       tty_printf("\n");
2314     }
2315
2316   free_notation(notation);
2317 }
2318
2319 /****************
2320  * show preferences of a public keyblock.
2321  */
2322 static void
2323 show_prefs (PKT_user_id *uid, PKT_signature *selfsig, int verbose)
2324 {
2325     const prefitem_t fake={0,0};
2326     const prefitem_t *prefs;
2327     int i;
2328
2329     if( !uid )
2330         return;
2331
2332     if( uid->prefs )
2333         prefs=uid->prefs;
2334     else if(verbose)
2335         prefs=&fake;
2336     else
2337       return;
2338
2339     if (verbose) {
2340         int any, des_seen=0, sha1_seen=0, uncomp_seen=0;
2341
2342         tty_printf ("     ");
2343         tty_printf (_("Cipher: "));
2344         for(i=any=0; prefs[i].type; i++ ) {
2345             if( prefs[i].type == PREFTYPE_SYM ) {
2346                 if (any)
2347                     tty_printf (", ");
2348                 any = 1;
2349                 /* We don't want to display strings for experimental algos */
2350                 if (!openpgp_cipher_test_algo (prefs[i].value)
2351                     && prefs[i].value < 100 )
2352                     tty_printf ("%s",
2353                                 openpgp_cipher_algo_name (prefs[i].value));
2354                 else
2355                     tty_printf ("[%d]", prefs[i].value);
2356                 if (prefs[i].value == CIPHER_ALGO_3DES )
2357                     des_seen = 1;
2358             }
2359         }
2360         if (!des_seen) {
2361             if (any)
2362                 tty_printf (", ");
2363             tty_printf ("%s", openpgp_cipher_algo_name (CIPHER_ALGO_3DES));
2364         }
2365         tty_printf ("\n     ");
2366         tty_printf (_("Digest: "));
2367         for(i=any=0; prefs[i].type; i++ ) {
2368             if( prefs[i].type == PREFTYPE_HASH ) {
2369                 if (any)
2370                     tty_printf (", ");
2371                 any = 1;
2372                 /* We don't want to display strings for experimental algos */
2373                 if (!gcry_md_test_algo (prefs[i].value)
2374                     && prefs[i].value < 100 )
2375                     tty_printf ("%s", gcry_md_algo_name (prefs[i].value) );
2376                 else
2377                     tty_printf ("[%d]", prefs[i].value);
2378                 if (prefs[i].value == DIGEST_ALGO_SHA1 )
2379                     sha1_seen = 1;
2380             }
2381         }
2382         if (!sha1_seen) {
2383             if (any)
2384                 tty_printf (", ");
2385             tty_printf ("%s", gcry_md_algo_name (DIGEST_ALGO_SHA1));
2386         }
2387         tty_printf ("\n     ");
2388         tty_printf (_("Compression: "));
2389         for(i=any=0; prefs[i].type; i++ ) {
2390             if( prefs[i].type == PREFTYPE_ZIP ) {
2391                 const char *s=compress_algo_to_string(prefs[i].value);
2392
2393                 if (any)
2394                     tty_printf (", ");
2395                 any = 1;
2396                 /* We don't want to display strings for experimental algos */
2397                 if (s && prefs[i].value < 100 )
2398                     tty_printf ("%s", s );
2399                 else
2400                     tty_printf ("[%d]", prefs[i].value);
2401                 if (prefs[i].value == COMPRESS_ALGO_NONE )
2402                     uncomp_seen = 1;
2403             }
2404         }
2405         if (!uncomp_seen) {
2406             if (any)
2407                 tty_printf (", ");
2408             else {
2409               tty_printf ("%s",compress_algo_to_string(COMPRESS_ALGO_ZIP));
2410               tty_printf (", ");
2411             }
2412             tty_printf ("%s",compress_algo_to_string(COMPRESS_ALGO_NONE));
2413         }
2414         if(uid->flags.mdc || !uid->flags.ks_modify)
2415           {
2416             tty_printf ("\n     ");
2417             tty_printf (_("Features: "));
2418             any=0;
2419             if(uid->flags.mdc)
2420               {
2421                 tty_printf ("MDC");
2422                 any=1;
2423               }
2424             if(!uid->flags.ks_modify)
2425               {
2426                 if(any)
2427                   tty_printf (", ");
2428                 tty_printf (_("Keyserver no-modify"));
2429               }
2430           }
2431         tty_printf("\n");
2432
2433         if(selfsig)
2434           {
2435             const byte *pref_ks;
2436             size_t pref_ks_len;
2437
2438             pref_ks=parse_sig_subpkt(selfsig->hashed,
2439                                      SIGSUBPKT_PREF_KS,&pref_ks_len);
2440             if(pref_ks && pref_ks_len)
2441               {
2442                 tty_printf ("     ");
2443                 tty_printf(_("Preferred keyserver: "));
2444                 tty_print_utf8_string(pref_ks,pref_ks_len);
2445                 tty_printf("\n");
2446               }
2447
2448             if(selfsig->flags.notation)
2449               {
2450                 tty_printf ("     ");
2451                 tty_printf(_("Notations: "));
2452                 tty_print_notations(5+strlen(_("Notations: ")),selfsig);
2453               }
2454           }
2455     }
2456     else {
2457         tty_printf("    ");
2458         for(i=0; prefs[i].type; i++ ) {
2459             tty_printf( " %c%d", prefs[i].type == PREFTYPE_SYM   ? 'S' :
2460                                  prefs[i].type == PREFTYPE_HASH  ? 'H' :
2461                                  prefs[i].type == PREFTYPE_ZIP ? 'Z':'?',
2462                                  prefs[i].value);
2463         }
2464         if (uid->flags.mdc)
2465             tty_printf (" [mdc]");
2466         if (!uid->flags.ks_modify)
2467             tty_printf (" [no-ks-modify]");
2468         tty_printf("\n");
2469     }
2470 }
2471
2472 /* This is the version of show_key_with_all_names used when
2473    opt.with_colons is used.  It prints all available data in a easy to
2474    parse format and does not translate utf8 */
2475 static void
2476 show_key_with_all_names_colon (KBNODE keyblock)
2477 {
2478   KBNODE node;
2479   int i, j, ulti_hack=0;
2480   byte pk_version=0;
2481   PKT_public_key *primary=NULL;
2482
2483   /* the keys */
2484   for ( node = keyblock; node; node = node->next )
2485     {
2486       if (node->pkt->pkttype == PKT_PUBLIC_KEY
2487           || (node->pkt->pkttype == PKT_PUBLIC_SUBKEY) )
2488         {
2489           PKT_public_key *pk = node->pkt->pkt.public_key;
2490           u32 keyid[2];
2491
2492           if (node->pkt->pkttype == PKT_PUBLIC_KEY)
2493             {
2494               pk_version = pk->version;
2495               primary=pk;
2496             }
2497
2498           keyid_from_pk (pk, keyid);
2499
2500           fputs (node->pkt->pkttype == PKT_PUBLIC_KEY?"pub:":"sub:", stdout);
2501           if (!pk->is_valid)
2502             putchar ('i');
2503           else if (pk->is_revoked)
2504             putchar ('r');
2505           else if (pk->has_expired)
2506             putchar ('e');
2507           else if (!(opt.fast_list_mode || opt.no_expensive_trust_checks ))
2508             {
2509               int trust = get_validity_info (pk, NULL);
2510               if(trust=='u')
2511                 ulti_hack=1;
2512               putchar (trust);
2513             }
2514
2515           printf (":%u:%d:%08lX%08lX:%lu:%lu::",
2516                   nbits_from_pk (pk),
2517                   pk->pubkey_algo,
2518                   (ulong)keyid[0], (ulong)keyid[1],
2519                   (ulong)pk->timestamp,
2520                   (ulong)pk->expiredate );
2521           if (node->pkt->pkttype==PKT_PUBLIC_KEY
2522               && !(opt.fast_list_mode || opt.no_expensive_trust_checks ))
2523             putchar(get_ownertrust_info (pk));
2524           putchar(':');
2525           putchar('\n');
2526
2527           print_fingerprint (pk, NULL, 0);
2528           print_revokers(pk);
2529         }
2530     }
2531
2532     /* the user ids */
2533     i = 0;
2534     for (node = keyblock; node; node = node->next)
2535       {
2536         if ( node->pkt->pkttype == PKT_USER_ID )
2537           {
2538             PKT_user_id *uid = node->pkt->pkt.user_id;
2539
2540             ++i;
2541
2542             if(uid->attrib_data)
2543               printf("uat:");
2544             else
2545               printf("uid:");
2546
2547             if ( uid->is_revoked )
2548               printf("r::::::::");
2549             else if ( uid->is_expired )
2550               printf("e::::::::");
2551             else if ( opt.fast_list_mode || opt.no_expensive_trust_checks )
2552               printf("::::::::");
2553             else
2554               {
2555                 int uid_validity;
2556
2557                 if( primary && !ulti_hack )
2558                   uid_validity = get_validity_info( primary, uid );
2559                 else
2560                   uid_validity = 'u';
2561                 printf("%c::::::::",uid_validity);
2562               }
2563
2564             if(uid->attrib_data)
2565               printf ("%u %lu",uid->numattribs,uid->attrib_len);
2566             else
2567               print_string (stdout, uid->name, uid->len, ':');
2568
2569             putchar (':');
2570             /* signature class */
2571             putchar (':');
2572             /* capabilities */
2573             putchar (':');
2574             /* preferences */
2575             if (pk_version>3 || uid->selfsigversion>3)
2576               {
2577                 const prefitem_t *prefs = uid->prefs;
2578
2579                 for (j=0; prefs && prefs[j].type; j++)
2580                   {
2581                     if (j)
2582                       putchar (' ');
2583                     printf ("%c%d", prefs[j].type == PREFTYPE_SYM   ? 'S' :
2584                             prefs[j].type == PREFTYPE_HASH  ? 'H' :
2585                             prefs[j].type == PREFTYPE_ZIP ? 'Z':'?',
2586                             prefs[j].value);
2587                   }
2588                 if (uid->flags.mdc)
2589                   printf (",mdc");
2590                 if (!uid->flags.ks_modify)
2591                   printf (",no-ks-modify");
2592               }
2593             putchar (':');
2594             /* flags */
2595             printf ("%d,", i);
2596             if (uid->is_primary)
2597               putchar ('p');
2598             if (uid->is_revoked)
2599               putchar ('r');
2600             if (uid->is_expired)
2601               putchar ('e');
2602             if ((node->flag & NODFLG_SELUID))
2603               putchar ('s');
2604             if ((node->flag & NODFLG_MARK_A))
2605               putchar ('m');
2606             putchar (':');
2607             putchar('\n');
2608           }
2609       }
2610 }
2611
2612 static void
2613 show_names(KBNODE keyblock,PKT_public_key *pk,unsigned int flag,int with_prefs)
2614 {
2615   KBNODE node;
2616   int i=0;
2617
2618   for( node = keyblock; node; node = node->next )
2619     {
2620       if( node->pkt->pkttype == PKT_USER_ID
2621           && !is_deleted_kbnode(node))
2622         {
2623           PKT_user_id *uid = node->pkt->pkt.user_id;
2624           ++i;
2625           if(!flag || (flag && (node->flag & flag)))
2626             {
2627               if(!(flag&NODFLG_MARK_A) && pk)
2628                 tty_printf("%s ",uid_trust_string_fixed(pk,uid));
2629
2630               if( flag & NODFLG_MARK_A )
2631                 tty_printf("     ");
2632               else if( node->flag & NODFLG_SELUID )
2633                 tty_printf("(%d)* ", i);
2634               else if( uid->is_primary )
2635                 tty_printf("(%d). ", i);
2636               else
2637                 tty_printf("(%d)  ", i);
2638               tty_print_utf8_string( uid->name, uid->len );
2639               tty_printf("\n");
2640               if(with_prefs && pk)
2641                 {
2642                   if(pk->version>3 || uid->selfsigversion>3)
2643                     {
2644                       PKT_signature *selfsig=NULL;
2645                       KBNODE signode;
2646
2647                       for(signode=node->next;
2648                           signode && signode->pkt->pkttype==PKT_SIGNATURE;
2649                           signode=signode->next)
2650                         {
2651                           if(signode->pkt->pkt.signature->
2652                              flags.chosen_selfsig)
2653                             {
2654                               selfsig=signode->pkt->pkt.signature;
2655                               break;
2656                             }
2657                         }
2658
2659                       show_prefs (uid, selfsig, with_prefs == 2);
2660                     }
2661                   else
2662                     tty_printf(_("There are no preferences on a"
2663                                  " PGP 2.x-style user ID.\n"));
2664                 }
2665             }
2666         }
2667     }
2668 }
2669
2670 /****************
2671  * Display the key a the user ids, if only_marked is true, do only
2672  * so for user ids with mark A flag set and dont display the index number
2673  */
2674 static void
2675 show_key_with_all_names( KBNODE keyblock, int only_marked, int with_revoker,
2676                          int with_fpr, int with_subkeys, int with_prefs )
2677 {
2678     KBNODE node;
2679     int i;
2680     int do_warn = 0;
2681     byte pk_version=0;
2682     PKT_public_key *primary=NULL;
2683
2684     if (opt.with_colons)
2685       {
2686         show_key_with_all_names_colon (keyblock);
2687         return;
2688       }
2689
2690     /* the keys */
2691     for( node = keyblock; node; node = node->next ) {
2692         if( node->pkt->pkttype == PKT_PUBLIC_KEY
2693             || (with_subkeys && node->pkt->pkttype == PKT_PUBLIC_SUBKEY
2694                 && !is_deleted_kbnode(node)) ) {
2695             PKT_public_key *pk = node->pkt->pkt.public_key;
2696             const char *otrust="err",*trust="err";
2697
2698             if( node->pkt->pkttype == PKT_PUBLIC_KEY ) {
2699                 /* do it here, so that debug messages don't clutter the
2700                  * output */
2701                 static int did_warn = 0;
2702
2703                 trust = get_validity_string (pk, NULL);
2704                 otrust = get_ownertrust_string (pk);
2705
2706                 /* Show a warning once */
2707                 if (!did_warn
2708                     && (get_validity (pk, NULL) & TRUST_FLAG_PENDING_CHECK)) {
2709                     did_warn = 1;
2710                     do_warn = 1;
2711                 }
2712
2713                 pk_version=pk->version;
2714                 primary=pk;
2715             }
2716
2717             if(pk->is_revoked)
2718               {
2719                 char *user=get_user_id_string_native(pk->revoked.keyid);
2720                 const char *algo = gcry_pk_algo_name (pk->revoked.algo);
2721                 tty_printf(_("This key was revoked on %s by %s key %s\n"),
2722                            revokestr_from_pk(pk),algo?algo:"?",user);
2723                 xfree(user);
2724               }
2725
2726             if(with_revoker)
2727               {
2728                 if( !pk->revkey && pk->numrevkeys )
2729                   BUG();
2730                 else
2731                   for(i=0;i<pk->numrevkeys;i++)
2732                     {
2733                       u32 r_keyid[2];
2734                       char *user;
2735                       const char *algo;
2736
2737                       algo = gcry_pk_algo_name (pk->revkey[i].algid);
2738                       keyid_from_fingerprint(pk->revkey[i].fpr,
2739                                              MAX_FINGERPRINT_LEN,r_keyid);
2740
2741                       user=get_user_id_string_native(r_keyid);
2742                       tty_printf(_("This key may be revoked by %s key %s"),
2743                                  algo?algo:"?",user);
2744
2745                       if(pk->revkey[i].class&0x40)
2746                         {
2747                           tty_printf(" ");
2748                           tty_printf(_("(sensitive)"));
2749                         }
2750
2751                       tty_printf ("\n");
2752                       xfree(user);
2753                     }
2754               }
2755
2756             keyid_from_pk(pk,NULL);
2757             tty_printf("%s%c %4u%c/%s  ",
2758                        node->pkt->pkttype == PKT_PUBLIC_KEY? "pub":"sub",
2759                        (node->flag & NODFLG_SELKEY)? '*':' ',
2760                        nbits_from_pk( pk ),
2761                        pubkey_letter( pk->pubkey_algo ),
2762                        keystr(pk->keyid));
2763
2764             tty_printf(_("created: %s"),datestr_from_pk(pk));
2765             tty_printf("  ");
2766             if(pk->is_revoked)
2767               tty_printf(_("revoked: %s"),revokestr_from_pk(pk));
2768             else if(pk->has_expired)
2769               tty_printf(_("expired: %s"),expirestr_from_pk(pk));
2770             else
2771               tty_printf(_("expires: %s"),expirestr_from_pk(pk));
2772             tty_printf("  ");
2773             tty_printf(_("usage: %s"),usagestr_from_pk(pk));
2774             tty_printf("\n");
2775
2776             if( node->pkt->pkttype == PKT_PUBLIC_KEY )
2777               {
2778                 if(opt.trust_model!=TM_ALWAYS)
2779                   {
2780                     tty_printf("%*s", (int)keystrlen()+13,"");
2781                     /* Ownertrust is only meaningful for the PGP or
2782                        classic trust models */
2783                     if(opt.trust_model==TM_PGP || opt.trust_model==TM_CLASSIC)
2784                       {
2785                         int width=14-strlen(otrust);
2786                         if(width<=0)
2787                           width=1;
2788                         tty_printf(_("trust: %s"), otrust);
2789                         tty_printf("%*s",width,"");
2790                       }
2791
2792                     tty_printf(_("validity: %s"), trust );
2793                     tty_printf("\n");
2794                   }
2795                 if( node->pkt->pkttype == PKT_PUBLIC_KEY
2796                     && (get_ownertrust (pk)&TRUST_FLAG_DISABLED))
2797                   {
2798                     tty_printf("*** ");
2799                     tty_printf(_("This key has been disabled"));
2800                     tty_printf("\n");
2801                   }
2802               }
2803
2804             if( node->pkt->pkttype == PKT_PUBLIC_KEY && with_fpr )
2805               {
2806                 print_fingerprint ( pk, NULL, 2 );
2807                 tty_printf("\n");
2808               }
2809         }
2810         else if( node->pkt->pkttype == PKT_SECRET_KEY
2811             || (with_subkeys && node->pkt->pkttype == PKT_SECRET_SUBKEY) )
2812           {
2813             PKT_secret_key *sk = node->pkt->pkt.secret_key;
2814             tty_printf("%s%c %4u%c/%s  ",
2815                        node->pkt->pkttype == PKT_SECRET_KEY? "sec":"ssb",
2816                        (node->flag & NODFLG_SELKEY)? '*':' ',
2817                        nbits_from_sk( sk ),
2818                        pubkey_letter( sk->pubkey_algo ),
2819                        keystr_from_sk(sk));
2820             tty_printf(_("created: %s"),datestr_from_sk(sk));
2821             tty_printf("  ");
2822             tty_printf(_("expires: %s"),expirestr_from_sk(sk));
2823             tty_printf("\n");
2824             if (sk->is_protected && sk->protect.s2k.mode == 1002)
2825               {
2826                 tty_printf("                     ");
2827                 tty_printf(_("card-no: "));
2828                 if (sk->protect.ivlen == 16
2829                     && !memcmp (sk->protect.iv, "\xD2\x76\x00\x01\x24\x01", 6))
2830                   { /* This is an OpenPGP card. */
2831                     for (i=8; i < 14; i++)
2832                       {
2833                         if (i == 10)
2834                           tty_printf (" ");
2835                         tty_printf ("%02X", sk->protect.iv[i]);
2836                       }
2837                   }
2838                 else
2839                   { /* Something is wrong: Print all. */
2840                     for (i=0; i < sk->protect.ivlen; i++)
2841                       tty_printf ("%02X", sk->protect.iv[i]);
2842                   }
2843                 tty_printf ("\n");
2844               }
2845           }
2846     }
2847
2848     show_names(keyblock,primary,only_marked?NODFLG_MARK_A:0,with_prefs);
2849
2850     if (do_warn)
2851         tty_printf (_("Please note that the shown key validity"
2852                       " is not necessarily correct\n"
2853                       "unless you restart the program.\n"));
2854 }
2855
2856
2857 /* Display basic key information.  This function is suitable to show
2858    information on the key without any dependencies on the trustdb or
2859    any other internal GnuPG stuff.  KEYBLOCK may either be a public or
2860    a secret key.*/
2861 void
2862 show_basic_key_info ( KBNODE keyblock )
2863 {
2864   KBNODE node;
2865   int i;
2866
2867   /* The primary key */
2868   for (node = keyblock; node; node = node->next)
2869     {
2870       if (node->pkt->pkttype == PKT_PUBLIC_KEY)
2871         {
2872           PKT_public_key *pk = node->pkt->pkt.public_key;
2873
2874           /* Note, we use the same format string as in other show
2875              functions to make the translation job easier. */
2876           tty_printf ("%s  %4u%c/%s  ",
2877                       node->pkt->pkttype == PKT_PUBLIC_KEY? "pub":"sub",
2878                       nbits_from_pk( pk ),
2879                       pubkey_letter( pk->pubkey_algo ),
2880                       keystr_from_pk(pk));
2881           tty_printf(_("created: %s"),datestr_from_pk(pk));
2882           tty_printf("  ");
2883           tty_printf(_("expires: %s"),expirestr_from_pk(pk));
2884           tty_printf("\n");
2885           print_fingerprint ( pk, NULL, 3 );
2886           tty_printf("\n");
2887         }
2888       else if (node->pkt->pkttype == PKT_SECRET_KEY)
2889         {
2890           PKT_secret_key *sk = node->pkt->pkt.secret_key;
2891           tty_printf("%s  %4u%c/%s",
2892                      node->pkt->pkttype == PKT_SECRET_KEY? "sec":"ssb",
2893                      nbits_from_sk( sk ),
2894                      pubkey_letter( sk->pubkey_algo ),
2895                      keystr_from_sk(sk));
2896           tty_printf(_("created: %s"),datestr_from_sk(sk));
2897           tty_printf("  ");
2898           tty_printf(_("expires: %s"),expirestr_from_sk(sk));
2899           tty_printf("\n");
2900           print_fingerprint (NULL, sk, 3 );
2901           tty_printf("\n");
2902         }
2903     }
2904
2905   /* The user IDs. */
2906   for (i=0, node = keyblock; node; node = node->next)
2907     {
2908       if (node->pkt->pkttype == PKT_USER_ID)
2909         {
2910           PKT_user_id *uid = node->pkt->pkt.user_id;
2911           ++i;
2912
2913           tty_printf ("     ");
2914           if (uid->is_revoked)
2915             tty_printf("[%s] ",_("revoked"));
2916           else if ( uid->is_expired )
2917             tty_printf("[%s] ",_("expired"));
2918           tty_print_utf8_string (uid->name, uid->len);
2919           tty_printf ("\n");
2920         }
2921     }
2922 }
2923
2924 static void
2925 show_key_and_fingerprint( KBNODE keyblock )
2926 {
2927   KBNODE node;
2928   PKT_public_key *pk = NULL;
2929
2930   for( node = keyblock; node; node = node->next )
2931     {
2932       if( node->pkt->pkttype == PKT_PUBLIC_KEY )
2933         {
2934           pk = node->pkt->pkt.public_key;
2935           tty_printf("pub   %4u%c/%s %s ",
2936                      nbits_from_pk( pk ),
2937                      pubkey_letter( pk->pubkey_algo ),
2938                      keystr_from_pk(pk),
2939                      datestr_from_pk(pk) );
2940         }
2941       else if( node->pkt->pkttype == PKT_USER_ID )
2942         {
2943           PKT_user_id *uid = node->pkt->pkt.user_id;
2944           tty_print_utf8_string( uid->name, uid->len );
2945           break;
2946         }
2947     }
2948   tty_printf("\n");
2949   if( pk )
2950     print_fingerprint( pk, NULL, 2 );
2951 }
2952
2953
2954 /* Show a warning if no uids on the key have the primary uid flag
2955    set. */
2956 static void
2957 no_primary_warning(KBNODE keyblock)
2958 {
2959   KBNODE node;
2960   int have_primary=0,uid_count=0;
2961
2962   /* TODO: if we ever start behaving differently with a primary or
2963      non-primary attribute ID, we will need to check for attributes
2964      here as well. */
2965
2966   for(node=keyblock; node; node = node->next)
2967     {
2968       if(node->pkt->pkttype==PKT_USER_ID
2969          && node->pkt->pkt.user_id->attrib_data==NULL)
2970         {
2971           uid_count++;
2972
2973           if(node->pkt->pkt.user_id->is_primary==2)
2974             {
2975               have_primary=1;
2976               break;
2977             }
2978         }
2979     }
2980
2981   if(uid_count>1 && !have_primary)
2982     log_info(_("WARNING: no user ID has been marked as primary.  This command"
2983                " may\n              cause a different user ID to become"
2984                " the assumed primary.\n"));
2985 }
2986
2987 /****************
2988  * Ask for a new user id, do the selfsignature and put it into
2989  * both keyblocks.
2990  * Return true if there is a new user id
2991  */
2992 static int
2993 menu_adduid( KBNODE pub_keyblock, KBNODE sec_keyblock,
2994              int photo, const char *photo_name)
2995 {
2996     PKT_user_id *uid;
2997     PKT_public_key *pk=NULL;
2998     PKT_secret_key *sk=NULL;
2999     PKT_signature *sig=NULL;
3000     PACKET *pkt;
3001     KBNODE node;
3002     KBNODE pub_where=NULL, sec_where=NULL;
3003     int rc;
3004
3005     for( node = pub_keyblock; node; pub_where = node, node = node->next ) {
3006         if( node->pkt->pkttype == PKT_PUBLIC_KEY )
3007             pk = node->pkt->pkt.public_key;
3008         else if( node->pkt->pkttype == PKT_PUBLIC_SUBKEY )
3009             break;
3010     }
3011     if( !node ) /* no subkey */
3012         pub_where = NULL;
3013     for( node = sec_keyblock; node; sec_where = node, node = node->next ) {
3014         if( node->pkt->pkttype == PKT_SECRET_KEY )
3015             sk = copy_secret_key( NULL, node->pkt->pkt.secret_key);
3016         else if( node->pkt->pkttype == PKT_SECRET_SUBKEY )
3017             break;
3018     }
3019     if( !node ) /* no subkey */
3020         sec_where = NULL;
3021     assert(pk && sk);
3022
3023     if(photo) {
3024       int hasattrib=0;
3025
3026       for( node = pub_keyblock; node; node = node->next )
3027         if( node->pkt->pkttype == PKT_USER_ID &&
3028             node->pkt->pkt.user_id->attrib_data!=NULL)
3029           {
3030             hasattrib=1;
3031             break;
3032           }
3033
3034       /* It is legal but bad for compatibility to add a photo ID to a
3035          v3 key as it means that PGP2 will not be able to use that key
3036          anymore.  Also, PGP may not expect a photo on a v3 key.
3037          Don't bother to ask this if the key already has a photo - any
3038          damage has already been done at that point. -dms */
3039       if(pk->version==3 && !hasattrib)
3040         {
3041           if(opt.expert)
3042             {
3043               tty_printf(_("WARNING: This is a PGP2-style key.  "
3044                            "Adding a photo ID may cause some versions\n"
3045                            "         of PGP to reject this key.\n"));
3046
3047               if(!cpr_get_answer_is_yes("keyedit.v3_photo.okay",
3048                                         _("Are you sure you still want "
3049                                           "to add it? (y/N) ")))
3050                 return 0;
3051             }
3052           else
3053             {
3054               tty_printf(_("You may not add a photo ID to "
3055                            "a PGP2-style key.\n"));
3056               return 0;
3057             }
3058         }
3059
3060       uid = generate_photo_id(pk,photo_name);
3061     } else
3062       uid = generate_user_id();
3063     if( !uid )
3064         return 0;
3065
3066     rc = make_keysig_packet( &sig, pk, uid, NULL, sk, 0x13, 0, 0, 0, 0,
3067                              keygen_add_std_prefs, pk );
3068     free_secret_key( sk );
3069     if( rc ) {
3070         log_error("signing failed: %s\n", g10_errstr(rc) );
3071         free_user_id(uid);
3072         return 0;
3073     }
3074
3075     /* insert/append to secret keyblock */
3076     pkt = xmalloc_clear( sizeof *pkt );
3077     pkt->pkttype = PKT_USER_ID;
3078     pkt->pkt.user_id = scopy_user_id(uid);
3079     node = new_kbnode(pkt);
3080     if( sec_where )
3081         insert_kbnode( sec_where, node, 0 );
3082     else
3083         add_kbnode( sec_keyblock, node );
3084     pkt = xmalloc_clear( sizeof *pkt );
3085     pkt->pkttype = PKT_SIGNATURE;
3086     pkt->pkt.signature = copy_signature(NULL, sig);
3087     if( sec_where )
3088         insert_kbnode( node, new_kbnode(pkt), 0 );
3089     else
3090         add_kbnode( sec_keyblock, new_kbnode(pkt) );
3091     /* insert/append to public keyblock */
3092     pkt = xmalloc_clear( sizeof *pkt );
3093     pkt->pkttype = PKT_USER_ID;
3094     pkt->pkt.user_id = uid;
3095     node = new_kbnode(pkt);
3096     if( pub_where )
3097         insert_kbnode( pub_where, node, 0 );
3098     else
3099         add_kbnode( pub_keyblock, node );
3100     pkt = xmalloc_clear( sizeof *pkt );
3101     pkt->pkttype = PKT_SIGNATURE;
3102     pkt->pkt.signature = copy_signature(NULL, sig);
3103     if( pub_where )
3104         insert_kbnode( node, new_kbnode(pkt), 0 );
3105     else
3106         add_kbnode( pub_keyblock, new_kbnode(pkt) );
3107     return 1;
3108 }
3109
3110
3111 /****************
3112  * Remove all selected userids from the keyrings
3113  */
3114 static void
3115 menu_deluid( KBNODE pub_keyblock, KBNODE sec_keyblock )
3116 {
3117     KBNODE node;
3118     int selected=0;
3119
3120     for( node = pub_keyblock; node; node = node->next ) {
3121         if( node->pkt->pkttype == PKT_USER_ID ) {
3122             selected = node->flag & NODFLG_SELUID;
3123             if( selected ) {
3124                 /* Only cause a trust update if we delete a
3125                    non-revoked user id */
3126                 if(!node->pkt->pkt.user_id->is_revoked)
3127                   update_trust=1;
3128                 delete_kbnode( node );
3129                 if( sec_keyblock ) {
3130                     KBNODE snode;
3131                     int s_selected = 0;
3132                     PKT_user_id *uid = node->pkt->pkt.user_id;
3133                     for( snode = sec_keyblock; snode; snode = snode->next ) {
3134                         if( snode->pkt->pkttype == PKT_USER_ID ) {
3135                             PKT_user_id *suid = snode->pkt->pkt.user_id;
3136
3137                             s_selected =
3138                                 (uid->len == suid->len
3139                                  && !memcmp( uid->name, suid->name, uid->len));
3140                             if( s_selected )
3141                                 delete_kbnode( snode );
3142                         }
3143                         else if( s_selected
3144                                  && snode->pkt->pkttype == PKT_SIGNATURE )
3145                             delete_kbnode( snode );
3146                         else if( snode->pkt->pkttype == PKT_SECRET_SUBKEY )
3147                             s_selected = 0;
3148                     }
3149                 }
3150             }
3151         }
3152         else if( selected && node->pkt->pkttype == PKT_SIGNATURE )
3153             delete_kbnode( node );
3154         else if( node->pkt->pkttype == PKT_PUBLIC_SUBKEY )
3155             selected = 0;
3156     }
3157     commit_kbnode( &pub_keyblock );
3158     if( sec_keyblock )
3159         commit_kbnode( &sec_keyblock );
3160 }
3161
3162
3163 static int
3164 menu_delsig( KBNODE pub_keyblock )
3165 {
3166     KBNODE node;
3167     PKT_user_id *uid = NULL;
3168     int changed=0;
3169
3170     for( node = pub_keyblock; node; node = node->next ) {
3171         if( node->pkt->pkttype == PKT_USER_ID ) {
3172             uid = (node->flag & NODFLG_SELUID)? node->pkt->pkt.user_id : NULL;
3173         }
3174         else if( uid && node->pkt->pkttype == PKT_SIGNATURE ) {
3175            int okay, valid, selfsig, inv_sig, no_key, other_err;
3176
3177             tty_printf("uid  ");
3178             tty_print_utf8_string( uid->name, uid->len );
3179             tty_printf("\n");
3180
3181             okay = inv_sig = no_key = other_err = 0;
3182             if(opt.with_colons)
3183               valid = print_and_check_one_sig_colon( pub_keyblock, node,
3184                                                &inv_sig, &no_key, &other_err,
3185                                                &selfsig, 1 );
3186             else
3187               valid = print_and_check_one_sig( pub_keyblock, node,
3188                                                &inv_sig, &no_key, &other_err,
3189                                                &selfsig, 1 );
3190
3191            if( valid ) {
3192                okay = cpr_get_answer_yes_no_quit(
3193                    "keyedit.delsig.valid",
3194                    _("Delete this good signature? (y/N/q)"));
3195
3196                /* Only update trust if we delete a good signature.
3197                   The other two cases do not affect trust. */
3198                if(okay)
3199                  update_trust=1;
3200            }
3201            else if( inv_sig || other_err )
3202                okay = cpr_get_answer_yes_no_quit(
3203                    "keyedit.delsig.invalid",
3204                    _("Delete this invalid signature? (y/N/q)"));
3205            else if( no_key )
3206                okay = cpr_get_answer_yes_no_quit(
3207                    "keyedit.delsig.unknown",
3208                    _("Delete this unknown signature? (y/N/q)"));
3209
3210             if( okay == -1 )
3211                 break;
3212            if( okay && selfsig && !cpr_get_answer_is_yes(
3213                                "keyedit.delsig.selfsig",
3214                               _("Really delete this self-signature? (y/N)") ))
3215                 okay = 0;
3216             if( okay ) {
3217                 delete_kbnode( node );
3218                 changed++;
3219             }
3220
3221         }
3222         else if( node->pkt->pkttype == PKT_PUBLIC_SUBKEY )
3223             uid = NULL;
3224     }
3225
3226     if( changed ) {
3227         commit_kbnode( &pub_keyblock );
3228         tty_printf( changed == 1? _("Deleted %d signature.\n")
3229                                 : _("Deleted %d signatures.\n"), changed );
3230     }
3231     else
3232         tty_printf( _("Nothing deleted.\n") );
3233
3234     return changed;
3235 }
3236
3237 static int
3238 menu_clean(KBNODE keyblock,int self_only)
3239 {
3240   KBNODE uidnode;
3241   int modified=0,select_all=!count_selected_uids(keyblock);
3242
3243   for(uidnode=keyblock->next;
3244       uidnode && uidnode->pkt->pkttype!=PKT_PUBLIC_SUBKEY;
3245       uidnode=uidnode->next)
3246     {
3247       if(uidnode->pkt->pkttype==PKT_USER_ID
3248          && (uidnode->flag&NODFLG_SELUID || select_all))
3249         {
3250           int uids=0,sigs=0;
3251           char *user=utf8_to_native(uidnode->pkt->pkt.user_id->name,
3252                                     uidnode->pkt->pkt.user_id->len,
3253                                     0);
3254
3255           clean_one_uid(keyblock,uidnode,opt.verbose,self_only,&uids,&sigs);
3256           if(uids)
3257             {
3258               const char *reason;
3259
3260               if(uidnode->pkt->pkt.user_id->is_revoked)
3261                 reason=_("revoked");
3262               else if(uidnode->pkt->pkt.user_id->is_expired)
3263                 reason=_("expired");
3264               else
3265                 reason=_("invalid");
3266
3267               tty_printf (_("User ID \"%s\" compacted: %s\n"), user, reason);
3268
3269               modified=1;
3270             }
3271           else if(sigs)
3272             {
3273               tty_printf(sigs==1?
3274                          _("User ID \"%s\": %d signature removed\n") :
3275                          _("User ID \"%s\": %d signatures removed\n"),
3276                          user,sigs);
3277
3278               modified=1;
3279             }
3280           else
3281             {
3282               tty_printf (self_only==1?
3283                           _("User ID \"%s\": already minimized\n") :
3284                           _("User ID \"%s\": already clean\n"),
3285                           user);
3286             }
3287
3288           xfree(user);
3289         }
3290     }
3291
3292   return modified;
3293 }
3294
3295 /****************
3296  * Remove some of the secondary keys
3297  */
3298 static void
3299 menu_delkey( KBNODE pub_keyblock, KBNODE sec_keyblock )
3300 {
3301     KBNODE node;
3302     int selected=0;
3303
3304     for( node = pub_keyblock; node; node = node->next ) {
3305         if( node->pkt->pkttype == PKT_PUBLIC_SUBKEY ) {
3306             selected = node->flag & NODFLG_SELKEY;
3307             if( selected ) {
3308                 delete_kbnode( node );
3309                 if( sec_keyblock ) {
3310                     KBNODE snode;
3311                     int s_selected = 0;
3312                     u32 ki[2];
3313
3314                     keyid_from_pk( node->pkt->pkt.public_key, ki );
3315                     for( snode = sec_keyblock; snode; snode = snode->next ) {
3316                         if( snode->pkt->pkttype == PKT_SECRET_SUBKEY ) {
3317                             u32 ki2[2];
3318
3319                             keyid_from_sk( snode->pkt->pkt.secret_key, ki2 );
3320                             s_selected = (ki[0] == ki2[0] && ki[1] == ki2[1]);
3321                             if( s_selected )
3322                                 delete_kbnode( snode );
3323                         }
3324                         else if( s_selected
3325                                  && snode->pkt->pkttype == PKT_SIGNATURE )
3326                             delete_kbnode( snode );
3327                         else
3328                             s_selected = 0;
3329                     }
3330                 }
3331             }
3332         }
3333         else if( selected && node->pkt->pkttype == PKT_SIGNATURE )
3334             delete_kbnode( node );
3335         else
3336             selected = 0;
3337     }
3338     commit_kbnode( &pub_keyblock );
3339     if( sec_keyblock )
3340         commit_kbnode( &sec_keyblock );
3341
3342     /* No need to set update_trust here since signing keys are no
3343        longer used to certify other keys, so there is no change in
3344        trust when revoking/removing them */
3345 }
3346
3347
3348 /****************
3349  * Ask for a new revoker, do the selfsignature and put it into
3350  * both keyblocks.
3351  * Return true if there is a new revoker
3352  */
3353 static int
3354 menu_addrevoker( KBNODE pub_keyblock, KBNODE sec_keyblock, int sensitive )
3355 {
3356   PKT_public_key *pk=NULL,*revoker_pk=NULL;
3357   PKT_secret_key *sk=NULL;
3358   PKT_signature *sig=NULL;
3359   PACKET *pkt;
3360   struct revocation_key revkey;
3361   size_t fprlen;
3362   int rc;
3363
3364   assert(pub_keyblock->pkt->pkttype==PKT_PUBLIC_KEY);
3365   assert(sec_keyblock->pkt->pkttype==PKT_SECRET_KEY);
3366
3367   pk=pub_keyblock->pkt->pkt.public_key;
3368
3369   if(pk->numrevkeys==0 && pk->version==3)
3370     {
3371       /* It is legal but bad for compatibility to add a revoker to a
3372          v3 key as it means that PGP2 will not be able to use that key
3373          anymore.  Also, PGP may not expect a revoker on a v3 key.
3374          Don't bother to ask this if the key already has a revoker -
3375          any damage has already been done at that point. -dms */
3376       if(opt.expert)
3377         {
3378           tty_printf(_("WARNING: This is a PGP 2.x-style key.  "
3379                        "Adding a designated revoker may cause\n"
3380                        "         some versions of PGP to reject this key.\n"));
3381
3382           if(!cpr_get_answer_is_yes("keyedit.v3_revoker.okay",
3383                                     _("Are you sure you still want "
3384                                       "to add it? (y/N) ")))
3385             return 0;
3386         }
3387       else
3388         {
3389           tty_printf(_("You may not add a designated revoker to "
3390                        "a PGP 2.x-style key.\n"));
3391           return 0;
3392         }
3393     }
3394
3395   sk=copy_secret_key(NULL,sec_keyblock->pkt->pkt.secret_key);
3396
3397   for(;;)
3398     {
3399       char *answer;
3400
3401       if(revoker_pk)
3402         free_public_key(revoker_pk);
3403
3404       revoker_pk=xmalloc_clear(sizeof(*revoker_pk));
3405
3406       tty_printf("\n");
3407
3408       answer=cpr_get_utf8("keyedit.add_revoker",
3409                           _("Enter the user ID of the designated revoker: "));
3410       if(answer[0]=='\0' || answer[0]=='\004')
3411         {
3412           xfree(answer);
3413           goto fail;
3414         }
3415
3416       /* Note that I'm requesting CERT here, which usually implies
3417          primary keys only, but some casual testing shows that PGP and
3418          GnuPG both can handle a designated revokation from a
3419          subkey. */
3420       revoker_pk->req_usage=PUBKEY_USAGE_CERT;
3421       rc=get_pubkey_byname (NULL, revoker_pk,answer,NULL,NULL,1, 1);
3422       if(rc)
3423         {
3424           log_error (_("key \"%s\" not found: %s\n"),answer,g10_errstr(rc));
3425           xfree(answer);
3426           continue;
3427         }
3428
3429       xfree(answer);
3430
3431       fingerprint_from_pk(revoker_pk,revkey.fpr,&fprlen);
3432       if(fprlen!=20)
3433         {
3434           log_error(_("cannot appoint a PGP 2.x style key as a "
3435                       "designated revoker\n"));
3436           continue;
3437         }
3438
3439       revkey.class=0x80;
3440       if(sensitive)
3441         revkey.class|=0x40;
3442       revkey.algid=revoker_pk->pubkey_algo;
3443
3444       if(cmp_public_keys(revoker_pk,pk)==0)
3445         {
3446           /* This actually causes no harm (after all, a key that
3447              designates itself as a revoker is the same as a
3448              regular key), but it's easy enough to check. */
3449           log_error(_("you cannot appoint a key as its own "
3450                       "designated revoker\n"));
3451
3452           continue;
3453         }
3454
3455       keyid_from_pk(pk,NULL);
3456
3457       /* Does this revkey already exist? */
3458       if(!pk->revkey && pk->numrevkeys)
3459         BUG();
3460       else
3461         {
3462           int i;
3463
3464           for(i=0;i<pk->numrevkeys;i++)
3465             {
3466               if(memcmp(&pk->revkey[i],&revkey,
3467                         sizeof(struct revocation_key))==0)
3468                 {
3469                   char buf[50];
3470
3471                   log_error(_("this key has already been designated "
3472                               "as a revoker\n"));
3473
3474                   sprintf(buf,"%08lX%08lX",
3475                           (ulong)pk->keyid[0],(ulong)pk->keyid[1]);
3476                   write_status_text(STATUS_ALREADY_SIGNED,buf);
3477
3478                   break;
3479                 }
3480             }
3481
3482           if(i<pk->numrevkeys)
3483             continue;
3484         }
3485
3486       print_pubkey_info(NULL,revoker_pk);
3487       print_fingerprint(revoker_pk,NULL,2);
3488       tty_printf("\n");
3489
3490       tty_printf(_("WARNING: appointing a key as a designated revoker "
3491                    "cannot be undone!\n"));
3492
3493       tty_printf("\n");
3494
3495       if(!cpr_get_answer_is_yes("keyedit.add_revoker.okay",
3496                                 _("Are you sure you want to appoint this "
3497                                   "key as a designated revoker? (y/N) ")))
3498         continue;
3499
3500       free_public_key(revoker_pk);
3501       revoker_pk=NULL;
3502       break;
3503     }
3504
3505   /* The 1F signature must be at least v4 to carry the revocation key
3506      subpacket. */
3507   rc = make_keysig_packet( &sig, pk, NULL, NULL, sk, 0x1F, 0, 4, 0, 0,
3508                            keygen_add_revkey,&revkey );
3509   if( rc )
3510     {
3511       log_error("signing failed: %s\n", g10_errstr(rc) );
3512       goto fail;
3513     }
3514
3515   free_secret_key(sk);
3516   sk=NULL;
3517
3518   /* insert into secret keyblock */
3519   pkt = xmalloc_clear( sizeof *pkt );
3520   pkt->pkttype = PKT_SIGNATURE;
3521   pkt->pkt.signature = copy_signature(NULL, sig);
3522   insert_kbnode( sec_keyblock, new_kbnode(pkt), PKT_SIGNATURE );
3523
3524   /* insert into public keyblock */
3525   pkt = xmalloc_clear( sizeof *pkt );
3526   pkt->pkttype = PKT_SIGNATURE;
3527   pkt->pkt.signature = sig;
3528   insert_kbnode( pub_keyblock, new_kbnode(pkt), PKT_SIGNATURE );
3529
3530   return 1;
3531
3532  fail:
3533   if(sk)
3534     free_secret_key(sk);
3535   if(sig)
3536     free_seckey_enc(sig);
3537   if(revoker_pk)
3538     free_public_key(revoker_pk);
3539
3540   return 0;
3541 }
3542
3543
3544 static int
3545 menu_expire( KBNODE pub_keyblock, KBNODE sec_keyblock )
3546 {
3547     int n1, signumber, rc;
3548     u32 expiredate;
3549     int mainkey=0;
3550     PKT_secret_key *sk;    /* copy of the main sk */
3551     PKT_public_key *main_pk, *sub_pk;
3552     PKT_user_id *uid;
3553     KBNODE node;
3554     u32 keyid[2];
3555
3556     if( count_selected_keys( sec_keyblock ) ) {
3557         tty_printf(_("Please remove selections from the secret keys.\n"));
3558         return 0;
3559     }
3560
3561     n1 = count_selected_keys( pub_keyblock );
3562     if( n1 > 1 ) {
3563         tty_printf(_("Please select at most one subkey.\n"));
3564         return 0;
3565     }
3566     else if( n1 )
3567         tty_printf(_("Changing expiration time for a subkey.\n"));
3568     else
3569       {
3570         tty_printf(_("Changing expiration time for the primary key.\n"));
3571         mainkey=1;
3572         no_primary_warning(pub_keyblock);
3573       }
3574
3575     expiredate = ask_expiredate();
3576     node = find_kbnode( sec_keyblock, PKT_SECRET_KEY );
3577     sk = copy_secret_key( NULL, node->pkt->pkt.secret_key);
3578
3579     /* Now we can actually change the self signature(s) */
3580     main_pk = sub_pk = NULL;
3581     uid = NULL;
3582     signumber = 0;
3583     for( node=pub_keyblock; node; node = node->next ) {
3584         if( node->pkt->pkttype == PKT_PUBLIC_KEY ) {
3585             main_pk = node->pkt->pkt.public_key;
3586             keyid_from_pk( main_pk, keyid );
3587             main_pk->expiredate = expiredate;
3588         }
3589         else if( node->pkt->pkttype == PKT_PUBLIC_SUBKEY
3590                  && (node->flag & NODFLG_SELKEY ) ) {
3591             sub_pk = node->pkt->pkt.public_key;
3592             sub_pk->expiredate = expiredate;
3593         }
3594         else if( node->pkt->pkttype == PKT_USER_ID )
3595             uid = node->pkt->pkt.user_id;
3596         else if( main_pk && node->pkt->pkttype == PKT_SIGNATURE
3597                  && ( mainkey || sub_pk ) ) {
3598             PKT_signature *sig = node->pkt->pkt.signature;
3599             if( keyid[0] == sig->keyid[0] && keyid[1] == sig->keyid[1]
3600                 && ( (mainkey && uid
3601                       && uid->created && (sig->sig_class&~3) == 0x10)
3602                      || (!mainkey && sig->sig_class == 0x18)  )
3603                 && sig->flags.chosen_selfsig )
3604               {
3605                 /* this is a selfsignature which is to be replaced */
3606                 PKT_signature *newsig;
3607                 PACKET *newpkt;
3608                 KBNODE sn;
3609                 int signumber2 = 0;
3610
3611                 signumber++;
3612
3613                 if( (mainkey && main_pk->version < 4)
3614                     || (!mainkey && sub_pk->version < 4 ) ) {
3615                     log_info(_(
3616                         "You can't change the expiration date of a v3 key\n"));
3617                     free_secret_key( sk );
3618                     return 0;
3619                 }
3620
3621                 /* find the corresponding secret self-signature */
3622                 for( sn=sec_keyblock; sn; sn = sn->next ) {
3623                     if( sn->pkt->pkttype == PKT_SIGNATURE ) {
3624                         PKT_signature *b = sn->pkt->pkt.signature;
3625                         if( keyid[0] == b->keyid[0] && keyid[1] == b->keyid[1]
3626                             && sig->sig_class == b->sig_class
3627                             && ++signumber2 == signumber )
3628                             break;
3629                     }
3630                 }
3631                 if( !sn )
3632                     log_info(_("No corresponding signature in secret ring\n"));
3633
3634                 if( mainkey )
3635                   rc = update_keysig_packet(&newsig, sig, main_pk, uid, NULL,
3636                                             sk, keygen_add_key_expire, main_pk);
3637                 else
3638                   rc = update_keysig_packet(&newsig, sig, main_pk, NULL, sub_pk,
3639                                             sk, keygen_add_key_expire, sub_pk );
3640                 if( rc ) {
3641                     log_error("make_keysig_packet failed: %s\n",
3642                                                     g10_errstr(rc));
3643                     free_secret_key( sk );
3644                     return 0;
3645                 }
3646                 /* replace the packet */
3647                 newpkt = xmalloc_clear( sizeof *newpkt );
3648                 newpkt->pkttype = PKT_SIGNATURE;
3649                 newpkt->pkt.signature = newsig;
3650                 free_packet( node->pkt );
3651                 xfree( node->pkt );
3652                 node->pkt = newpkt;
3653                 if( sn ) {
3654                     newpkt = xmalloc_clear( sizeof *newpkt );
3655                     newpkt->pkttype = PKT_SIGNATURE;
3656                     newpkt->pkt.signature = copy_signature( NULL, newsig );
3657                     free_packet( sn->pkt );
3658                     xfree( sn->pkt );
3659                     sn->pkt = newpkt;
3660                 }
3661                 sub_pk = NULL;
3662             }
3663         }
3664     }
3665
3666     free_secret_key( sk );
3667     update_trust=1;
3668     return 1;
3669 }
3670
3671 static int
3672 menu_backsign(KBNODE pub_keyblock,KBNODE sec_keyblock)
3673 {
3674   int rc,modified=0;
3675   PKT_public_key *main_pk;
3676   PKT_secret_key *main_sk,*sub_sk=NULL;
3677   KBNODE node;
3678   u32 timestamp;
3679
3680   assert(pub_keyblock->pkt->pkttype==PKT_PUBLIC_KEY);
3681   assert(sec_keyblock->pkt->pkttype==PKT_SECRET_KEY);
3682
3683   merge_keys_and_selfsig(pub_keyblock);
3684   main_pk=pub_keyblock->pkt->pkt.public_key;
3685   main_sk=copy_secret_key(NULL,sec_keyblock->pkt->pkt.secret_key);
3686   keyid_from_pk(main_pk,NULL);
3687
3688   /* We use the same timestamp for all backsigs so that we don't
3689      reveal information about the used machine.  */
3690   timestamp = make_timestamp ();
3691
3692   for(node=pub_keyblock;node;node=node->next)
3693     {
3694       PKT_public_key *sub_pk=NULL;
3695       KBNODE node2,sig_pk=NULL,sig_sk=NULL;
3696       char *passphrase;
3697
3698       if(sub_sk)
3699         {
3700           free_secret_key(sub_sk);
3701           sub_sk=NULL;
3702         }
3703
3704       /* Find a signing subkey with no backsig */
3705       if(node->pkt->pkttype==PKT_PUBLIC_SUBKEY)
3706         {
3707           if(node->pkt->pkt.public_key->pubkey_usage&PUBKEY_USAGE_SIG)
3708             {
3709               if(node->pkt->pkt.public_key->backsig)
3710                 tty_printf(_("signing subkey %s is already cross-certified\n"),
3711                            keystr_from_pk(node->pkt->pkt.public_key));
3712               else
3713                 sub_pk=node->pkt->pkt.public_key;
3714             }
3715           else
3716             tty_printf(_("subkey %s does not sign and so does"
3717                          " not need to be cross-certified\n"),
3718                        keystr_from_pk(node->pkt->pkt.public_key));
3719         }
3720
3721       if(!sub_pk)
3722         continue;
3723
3724       /* Find the selected selfsig on this subkey */
3725       for(node2=node->next;
3726           node2 && node2->pkt->pkttype==PKT_SIGNATURE;
3727           node2=node2->next)
3728         if(node2->pkt->pkt.signature->version>=4
3729            && node2->pkt->pkt.signature->flags.chosen_selfsig)
3730           {
3731             sig_pk=node2;
3732             break;
3733           }
3734
3735       if(!sig_pk)
3736         continue;
3737
3738       /* Find the secret subkey that matches the public subkey */
3739       for(node2=sec_keyblock;node2;node2=node2->next)
3740         if(node2->pkt->pkttype==PKT_SECRET_SUBKEY
3741            && !cmp_public_secret_key(sub_pk,node2->pkt->pkt.secret_key))
3742           {
3743             sub_sk=copy_secret_key(NULL,node2->pkt->pkt.secret_key);
3744             break;
3745           }
3746
3747       if(!sub_sk)
3748         {
3749           tty_printf(_("no secret subkey for public subkey %s - ignoring\n"),
3750                      keystr_from_pk(sub_pk));
3751           continue;
3752         }
3753
3754       /* Now finally find the matching selfsig on the secret subkey.
3755          We can't use chosen_selfsig here (it's not set for secret
3756          keys), so we just pick the selfsig with the right class.
3757          This is what menu_expire does as well. */
3758       for(node2=node2->next;
3759           node2 && node2->pkt->pkttype!=PKT_SECRET_SUBKEY;
3760           node2=node2->next)
3761         if(node2->pkt->pkttype==PKT_SIGNATURE
3762            && node2->pkt->pkt.signature->version>=4
3763            && node2->pkt->pkt.signature->keyid[0]==sig_pk->pkt->pkt.signature->keyid[0]
3764            && node2->pkt->pkt.signature->keyid[1]==sig_pk->pkt->pkt.signature->keyid[1]
3765            && node2->pkt->pkt.signature->sig_class==sig_pk->pkt->pkt.signature->sig_class)
3766           {
3767             sig_sk=node2;
3768             break;
3769           }
3770
3771       /* Now we can get to work.  We have a main key and secret part,
3772          a signing subkey with signature and secret part possibly with
3773          signature. */
3774
3775       passphrase=get_last_passphrase();
3776       set_next_passphrase(passphrase);
3777       xfree(passphrase);
3778
3779       rc = make_backsig (sig_pk->pkt->pkt.signature, main_pk, sub_pk, sub_sk,
3780                          timestamp);
3781       if(rc==0)
3782         {
3783           PKT_signature *newsig;
3784           PACKET *newpkt;
3785
3786           passphrase=get_last_passphrase();
3787           set_next_passphrase(passphrase);
3788           xfree(passphrase);
3789
3790           rc=update_keysig_packet(&newsig,sig_pk->pkt->pkt.signature,main_pk,
3791                                   NULL,sub_pk,main_sk,NULL,NULL);
3792           if(rc==0)
3793             {
3794               /* Put the new sig into place on the pubkey */
3795               newpkt=xmalloc_clear(sizeof(*newpkt));
3796               newpkt->pkttype=PKT_SIGNATURE;
3797               newpkt->pkt.signature=newsig;
3798               free_packet(sig_pk->pkt);
3799               xfree(sig_pk->pkt);
3800               sig_pk->pkt=newpkt;
3801
3802               if(sig_sk)
3803                 {
3804                   /* Put the new sig into place on the seckey */
3805                   newpkt=xmalloc_clear(sizeof(*newpkt));
3806                   newpkt->pkttype=PKT_SIGNATURE;
3807                   newpkt->pkt.signature=copy_signature(NULL,newsig);
3808                   free_packet(sig_sk->pkt);
3809                   xfree(sig_sk->pkt);
3810                   sig_sk->pkt=newpkt;
3811                 }
3812
3813               modified=1;
3814             }
3815           else
3816             {
3817               log_error("update_keysig_packet failed: %s\n",g10_errstr(rc));
3818               break;
3819             }
3820         }
3821       else
3822         {
3823           log_error("make_backsig failed: %s\n",g10_errstr(rc));
3824           break;
3825         }
3826     }
3827
3828   set_next_passphrase(NULL);
3829
3830   free_secret_key(main_sk);
3831   if(sub_sk)
3832     free_secret_key(sub_sk);
3833
3834   return modified;
3835 }
3836
3837
3838 static int
3839 change_primary_uid_cb ( PKT_signature *sig, void *opaque )
3840 {
3841     byte buf[1];
3842
3843     /* first clear all primary uid flags so that we are sure none are
3844      * lingering around */
3845     delete_sig_subpkt (sig->hashed,   SIGSUBPKT_PRIMARY_UID);
3846     delete_sig_subpkt (sig->unhashed, SIGSUBPKT_PRIMARY_UID);
3847
3848     /* if opaque is set,we want to set the primary id */
3849     if (opaque) {
3850         buf[0] = 1;
3851         build_sig_subpkt (sig, SIGSUBPKT_PRIMARY_UID, buf, 1 );
3852     }
3853
3854     return 0;
3855 }
3856
3857
3858 /*
3859  * Set the primary uid flag for the selected UID.  We will also reset
3860  * all other primary uid flags.  For this to work with have to update
3861  * all the signature timestamps.  If we would do this with the current
3862  * time, we lose quite a lot of information, so we use a a kludge to
3863  * do this: Just increment the timestamp by one second which is
3864  * sufficient to updated a signature during import.
3865  */
3866 static int
3867 menu_set_primary_uid ( KBNODE pub_keyblock, KBNODE sec_keyblock )
3868 {
3869     PKT_secret_key *sk;    /* copy of the main sk */
3870     PKT_public_key *main_pk;
3871     PKT_user_id *uid;
3872     KBNODE node;
3873     u32 keyid[2];
3874     int selected;
3875     int attribute = 0;
3876     int modified = 0;
3877
3878     if ( count_selected_uids (pub_keyblock) != 1 ) {
3879         tty_printf(_("Please select exactly one user ID.\n"));
3880         return 0;
3881     }
3882
3883     node = find_kbnode( sec_keyblock, PKT_SECRET_KEY );
3884     sk = copy_secret_key( NULL, node->pkt->pkt.secret_key);
3885
3886     /* Now we can actually change the self signature(s) */
3887     main_pk = NULL;
3888     uid = NULL;
3889     selected = 0;
3890
3891     /* Is our selected uid an attribute packet? */
3892     for ( node=pub_keyblock; node; node = node->next )
3893       if (node->pkt->pkttype == PKT_USER_ID && node->flag & NODFLG_SELUID)
3894         attribute = (node->pkt->pkt.user_id->attrib_data!=NULL);
3895
3896     for ( node=pub_keyblock; node; node = node->next ) {
3897         if ( node->pkt->pkttype == PKT_PUBLIC_SUBKEY )
3898             break; /* ready */
3899
3900         if ( node->pkt->pkttype == PKT_PUBLIC_KEY ) {
3901             main_pk = node->pkt->pkt.public_key;
3902             keyid_from_pk( main_pk, keyid );
3903         }
3904         else if ( node->pkt->pkttype == PKT_USER_ID ) {
3905             uid = node->pkt->pkt.user_id;
3906             selected = node->flag & NODFLG_SELUID;
3907         }
3908         else if ( main_pk && uid && node->pkt->pkttype == PKT_SIGNATURE ) {
3909             PKT_signature *sig = node->pkt->pkt.signature;
3910             if ( keyid[0] == sig->keyid[0] && keyid[1] == sig->keyid[1]
3911                  && (uid && (sig->sig_class&~3) == 0x10)
3912                  && attribute == (uid->attrib_data!=NULL)
3913                  && sig->flags.chosen_selfsig )
3914               {
3915               if(sig->version < 4) {
3916                 char *user=utf8_to_native(uid->name,strlen(uid->name),0);
3917
3918                 log_info(_("skipping v3 self-signature on user ID \"%s\"\n"),
3919                          user);
3920                 xfree(user);
3921               }
3922               else {
3923                 /* This is a selfsignature which is to be replaced.
3924                    We can just ignore v3 signatures because they are
3925                    not able to carry the primary ID flag.  We also
3926                    ignore self-sigs on user IDs that are not of the
3927                    same type that we are making primary.  That is, if
3928                    we are making a user ID primary, we alter user IDs.
3929                    If we are making an attribute packet primary, we
3930                    alter attribute packets. */
3931
3932                 /* FIXME: We must make sure that we only have one
3933                    self-signature per user ID here (not counting
3934                    revocations) */
3935                 PKT_signature *newsig;
3936                 PACKET *newpkt;
3937                 const byte *p;
3938                 int action;
3939
3940                 /* see whether this signature has the primary UID flag */
3941                 p = parse_sig_subpkt (sig->hashed,
3942                                       SIGSUBPKT_PRIMARY_UID, NULL );
3943                 if ( !p )
3944                     p = parse_sig_subpkt (sig->unhashed,
3945                                           SIGSUBPKT_PRIMARY_UID, NULL );
3946                 if ( p && *p ) /* yes */
3947                     action = selected? 0 : -1;
3948                 else /* no */
3949                     action = selected? 1 : 0;
3950
3951                 if (action) {
3952                     int rc = update_keysig_packet (&newsig, sig,
3953                                                main_pk, uid, NULL,
3954                                                sk,
3955                                                change_primary_uid_cb,
3956                                                action > 0? "x":NULL );
3957                     if( rc ) {
3958                         log_error ("update_keysig_packet failed: %s\n",
3959                                    g10_errstr(rc));
3960                         free_secret_key( sk );
3961                         return 0;
3962                     }
3963                     /* replace the packet */
3964                     newpkt = xmalloc_clear( sizeof *newpkt );
3965                     newpkt->pkttype = PKT_SIGNATURE;
3966                     newpkt->pkt.signature = newsig;
3967                     free_packet( node->pkt );
3968                     xfree( node->pkt );
3969                     node->pkt = newpkt;
3970                     modified = 1;
3971                 }
3972               }
3973             }
3974         }
3975     }
3976
3977     free_secret_key( sk );
3978     return modified;
3979 }
3980
3981
3982 /*
3983  * Set preferences to new values for the selected user IDs
3984  */
3985 static int
3986 menu_set_preferences (KBNODE pub_keyblock, KBNODE sec_keyblock )
3987 {
3988     PKT_secret_key *sk;    /* copy of the main sk */
3989     PKT_public_key *main_pk;
3990     PKT_user_id *uid;
3991     KBNODE node;
3992     u32 keyid[2];
3993     int selected, select_all;
3994     int modified = 0;
3995
3996     no_primary_warning(pub_keyblock);
3997
3998     select_all = !count_selected_uids (pub_keyblock);
3999
4000     node = find_kbnode( sec_keyblock, PKT_SECRET_KEY );
4001     sk = copy_secret_key( NULL, node->pkt->pkt.secret_key);
4002
4003     /* Now we can actually change the self signature(s) */
4004     main_pk = NULL;
4005     uid = NULL;
4006     selected = 0;
4007     for ( node=pub_keyblock; node; node = node->next ) {
4008         if ( node->pkt->pkttype == PKT_PUBLIC_SUBKEY )
4009             break; /* ready */
4010
4011         if ( node->pkt->pkttype == PKT_PUBLIC_KEY ) {
4012             main_pk = node->pkt->pkt.public_key;
4013             keyid_from_pk( main_pk, keyid );
4014         }
4015         else if ( node->pkt->pkttype == PKT_USER_ID ) {
4016             uid = node->pkt->pkt.user_id;
4017             selected = select_all || (node->flag & NODFLG_SELUID);
4018         }
4019         else if ( main_pk && uid && selected
4020                   && node->pkt->pkttype == PKT_SIGNATURE ) {
4021             PKT_signature *sig = node->pkt->pkt.signature;
4022             if ( keyid[0] == sig->keyid[0] && keyid[1] == sig->keyid[1]
4023                  && (uid && (sig->sig_class&~3) == 0x10)
4024                  && sig->flags.chosen_selfsig ) {
4025               if( sig->version < 4 ) {
4026                 char *user=utf8_to_native(uid->name,strlen(uid->name),0);
4027
4028                 log_info(_("skipping v3 self-signature on user ID \"%s\"\n"),
4029                          user);
4030                 xfree(user);
4031               }
4032               else {
4033                 /* This is a selfsignature which is to be replaced
4034                  * We have to ignore v3 signatures because they are
4035                  * not able to carry the preferences */
4036                 PKT_signature *newsig;
4037                 PACKET *newpkt;
4038                 int rc;
4039
4040                 rc = update_keysig_packet (&newsig, sig,
4041                                            main_pk, uid, NULL,
4042                                            sk,
4043                                            keygen_upd_std_prefs,
4044                                            NULL );
4045                 if( rc ) {
4046                     log_error ("update_keysig_packet failed: %s\n",
4047                                g10_errstr(rc));
4048                     free_secret_key( sk );
4049                     return 0;
4050                 }
4051                 /* replace the packet */
4052                 newpkt = xmalloc_clear( sizeof *newpkt );
4053                 newpkt->pkttype = PKT_SIGNATURE;
4054                 newpkt->pkt.signature = newsig;
4055                 free_packet( node->pkt );
4056                 xfree( node->pkt );
4057                 node->pkt = newpkt;
4058                 modified = 1;
4059               }
4060             }
4061         }
4062     }
4063
4064     free_secret_key( sk );
4065     return modified;
4066 }
4067
4068
4069 static int
4070 menu_set_keyserver_url (const char *url,
4071                         KBNODE pub_keyblock, KBNODE sec_keyblock )
4072 {
4073   PKT_secret_key *sk;    /* copy of the main sk */
4074   PKT_public_key *main_pk;
4075   PKT_user_id *uid;
4076   KBNODE node;
4077   u32 keyid[2];
4078   int selected, select_all;
4079   int modified = 0;
4080   char *answer,*uri;
4081
4082   no_primary_warning(pub_keyblock);
4083
4084   if(url)
4085     answer=xstrdup(url);
4086   else
4087     {
4088       answer=cpr_get_utf8("keyedit.add_keyserver",
4089                           _("Enter your preferred keyserver URL: "));
4090       if(answer[0]=='\0' || answer[0]=='\004')
4091         {
4092           xfree(answer);
4093           return 0;
4094         }
4095     }
4096
4097   if(ascii_strcasecmp(answer,"none")==0)
4098     uri=NULL;
4099   else
4100     {
4101       struct keyserver_spec *keyserver=NULL;
4102       /* Sanity check the format */
4103       keyserver=parse_keyserver_uri(answer,1,NULL,0);
4104       xfree(answer);
4105       if(!keyserver)
4106         {
4107           log_info(_("could not parse keyserver URL\n"));
4108           return 0;
4109         }
4110       uri=xstrdup(keyserver->uri);
4111       free_keyserver_spec(keyserver);
4112     }
4113
4114   select_all = !count_selected_uids (pub_keyblock);
4115
4116   node = find_kbnode( sec_keyblock, PKT_SECRET_KEY );
4117   sk = copy_secret_key( NULL, node->pkt->pkt.secret_key);
4118
4119   /* Now we can actually change the self signature(s) */
4120   main_pk = NULL;
4121   uid = NULL;
4122   selected = 0;
4123   for ( node=pub_keyblock; node; node = node->next )
4124     {
4125       if ( node->pkt->pkttype == PKT_PUBLIC_SUBKEY )
4126         break; /* ready */
4127
4128       if ( node->pkt->pkttype == PKT_PUBLIC_KEY )
4129         {
4130           main_pk = node->pkt->pkt.public_key;
4131           keyid_from_pk( main_pk, keyid );
4132         }
4133       else if ( node->pkt->pkttype == PKT_USER_ID )
4134         {
4135           uid = node->pkt->pkt.user_id;
4136           selected = select_all || (node->flag & NODFLG_SELUID);
4137         }
4138       else if ( main_pk && uid && selected
4139                 && node->pkt->pkttype == PKT_SIGNATURE )
4140         {
4141           PKT_signature *sig = node->pkt->pkt.signature;
4142           if ( keyid[0] == sig->keyid[0] && keyid[1] == sig->keyid[1]
4143                && (uid && (sig->sig_class&~3) == 0x10)
4144                && sig->flags.chosen_selfsig)
4145             {
4146               char *user=utf8_to_native(uid->name,strlen(uid->name),0);
4147               if( sig->version < 4 )
4148                 log_info(_("skipping v3 self-signature on user ID \"%s\"\n"),
4149                          user);
4150               else
4151                 {
4152                   /* This is a selfsignature which is to be replaced
4153                    * We have to ignore v3 signatures because they are
4154                    * not able to carry the subpacket. */
4155                   PKT_signature *newsig;
4156                   PACKET *newpkt;
4157                   int rc;
4158                   const byte *p;
4159                   size_t plen;
4160
4161                   p=parse_sig_subpkt(sig->hashed,SIGSUBPKT_PREF_KS,&plen);
4162                   if(p && plen)
4163                     {
4164                       tty_printf("Current preferred keyserver for user"
4165                                  " ID \"%s\": ",user);
4166                       tty_print_utf8_string(p,plen);
4167                       tty_printf("\n");
4168                       if(!cpr_get_answer_is_yes("keyedit.confirm_keyserver",
4169                          uri?_("Are you sure you want to replace it? (y/N) "):
4170                              _("Are you sure you want to delete it? (y/N) ")))
4171                         continue;
4172                     }
4173                   else if(uri==NULL)
4174                     {
4175                       /* There is no current keyserver URL, so there
4176                          is no point in trying to un-set it. */
4177                       continue;
4178                     }
4179
4180                   rc = update_keysig_packet (&newsig, sig,
4181                                              main_pk, uid, NULL,
4182                                              sk,
4183                                              keygen_add_keyserver_url, uri );
4184                   if( rc )
4185                     {
4186                       log_error ("update_keysig_packet failed: %s\n",
4187                                  g10_errstr(rc));
4188                       free_secret_key( sk );
4189                       xfree(uri);
4190                       return 0;
4191                     }
4192                   /* replace the packet */
4193                   newpkt = xmalloc_clear( sizeof *newpkt );
4194                   newpkt->pkttype = PKT_SIGNATURE;
4195                   newpkt->pkt.signature = newsig;
4196                   free_packet( node->pkt );
4197                   xfree( node->pkt );
4198                   node->pkt = newpkt;
4199                   modified = 1;
4200                 }
4201
4202               xfree(user);
4203             }
4204         }
4205     }
4206
4207   xfree(uri);
4208   free_secret_key( sk );
4209   return modified;
4210 }
4211
4212 static int
4213 menu_set_notation(const char *string,KBNODE pub_keyblock,KBNODE sec_keyblock)
4214 {
4215   PKT_secret_key *sk;    /* copy of the main sk */
4216   PKT_public_key *main_pk;
4217   PKT_user_id *uid;
4218   KBNODE node;
4219   u32 keyid[2];
4220   int selected, select_all;
4221   int modified = 0;
4222   char *answer;
4223   struct notation *notation;
4224
4225   no_primary_warning(pub_keyblock);
4226
4227   if(string)
4228     answer=xstrdup(string);
4229   else
4230     {
4231       answer=cpr_get_utf8("keyedit.add_notation",
4232                           _("Enter the notation: "));
4233       if(answer[0]=='\0' || answer[0]=='\004')
4234         {
4235           xfree(answer);
4236           return 0;
4237         }
4238     }
4239
4240   if(ascii_strcasecmp(answer,"none")==0
4241      || ascii_strcasecmp(answer,"-")==0)
4242     notation=NULL; /* delete them all */
4243   else
4244     {
4245       notation=string_to_notation(answer,0);
4246       if(!notation)
4247         {
4248           xfree(answer);
4249           return 0;
4250         }
4251     }
4252
4253   xfree(answer);
4254
4255   select_all = !count_selected_uids (pub_keyblock);
4256
4257   node = find_kbnode( sec_keyblock, PKT_SECRET_KEY );
4258   sk = copy_secret_key( NULL, node->pkt->pkt.secret_key);
4259
4260   /* Now we can actually change the self signature(s) */
4261   main_pk = NULL;
4262   uid = NULL;
4263   selected = 0;
4264   for ( node=pub_keyblock; node; node = node->next )
4265     {
4266       if ( node->pkt->pkttype == PKT_PUBLIC_SUBKEY )
4267         break; /* ready */
4268
4269       if ( node->pkt->pkttype == PKT_PUBLIC_KEY )
4270         {
4271           main_pk = node->pkt->pkt.public_key;
4272           keyid_from_pk( main_pk, keyid );
4273         }
4274       else if ( node->pkt->pkttype == PKT_USER_ID )
4275         {
4276           uid = node->pkt->pkt.user_id;
4277           selected = select_all || (node->flag & NODFLG_SELUID);
4278         }
4279       else if ( main_pk && uid && selected
4280                 && node->pkt->pkttype == PKT_SIGNATURE )
4281         {
4282           PKT_signature *sig = node->pkt->pkt.signature;
4283           if ( keyid[0] == sig->keyid[0] && keyid[1] == sig->keyid[1]
4284                && (uid && (sig->sig_class&~3) == 0x10)
4285                && sig->flags.chosen_selfsig)
4286             {
4287               char *user=utf8_to_native(uid->name,strlen(uid->name),0);
4288               if( sig->version < 4 )
4289                 log_info(_("skipping v3 self-signature on user ID \"%s\"\n"),
4290                          user);
4291               else
4292                 {
4293                   PKT_signature *newsig;
4294                   PACKET *newpkt;
4295                   int rc,skip=0,addonly=1;
4296
4297                   if(sig->flags.notation)
4298                     {
4299                       tty_printf("Current notations for user ID \"%s\":\n",
4300                                  user);
4301                       tty_print_notations(-9,sig);
4302                     }
4303                   else
4304                     {
4305                       tty_printf("No notations on user ID \"%s\"\n",user);
4306                       if(notation==NULL)
4307                         {
4308                           /* There are no current notations, so there
4309                              is no point in trying to un-set them. */
4310                           continue;
4311                         }
4312                     }
4313
4314                   if(notation)
4315                     {
4316                       struct notation *n;
4317                       int deleting=0;
4318
4319                       notation->next=sig_to_notation(sig);
4320
4321                       for(n=notation->next;n;n=n->next)
4322                         if(strcmp(n->name,notation->name)==0)
4323                           {
4324                             if(notation->value)
4325                               {
4326                                 if(strcmp(n->value,notation->value)==0)
4327                                   {
4328                                     if(notation->flags.ignore)
4329                                       {
4330                                         /* Value match with a delete
4331                                            flag. */
4332                                         n->flags.ignore=1;
4333                                         deleting=1;
4334                                       }
4335                                     else
4336                                       {
4337                                         /* Adding the same notation
4338                                            twice, so don't add it at
4339                                            all. */
4340                                         skip=1;
4341                                         tty_printf("Skipping notation:"
4342                                                    " %s=%s\n",
4343                                                    notation->name,
4344                                                    notation->value);
4345                                         break;
4346                                       }
4347                                   }
4348                               }
4349                             else
4350                               {
4351                                 /* No value, so it means delete. */
4352                                 n->flags.ignore=1;
4353                                 deleting=1;
4354                               }
4355
4356                             if(n->flags.ignore)
4357                               {
4358                                 tty_printf("Removing notation: %s=%s\n",
4359                                            n->name,n->value);
4360                                 addonly=0;
4361                               }
4362                           }
4363
4364                       if(!notation->flags.ignore && !skip)
4365                         tty_printf("Adding notation: %s=%s\n",
4366                                    notation->name,notation->value);
4367
4368                       /* We tried to delete, but had no matches */
4369                       if(notation->flags.ignore && !deleting)
4370                         continue;
4371                     }
4372                   else
4373                     {
4374                       tty_printf("Removing all notations\n");
4375                       addonly=0;
4376                     }
4377
4378                   if(skip
4379                      || (!addonly
4380                          && !cpr_get_answer_is_yes("keyedit.confirm_notation",
4381                                                    _("Proceed? (y/N) "))))
4382                     continue;
4383
4384                   rc = update_keysig_packet (&newsig, sig,
4385                                              main_pk, uid, NULL,
4386                                              sk,
4387                                              keygen_add_notations, notation );
4388                   if( rc )
4389                     {
4390                       log_error ("update_keysig_packet failed: %s\n",
4391                                  g10_errstr(rc));
4392                       free_secret_key( sk );
4393                       free_notation(notation);
4394                       xfree(user);
4395                       return 0;
4396                     }
4397
4398                   /* replace the packet */
4399                   newpkt = xmalloc_clear( sizeof *newpkt );
4400                   newpkt->pkttype = PKT_SIGNATURE;
4401                   newpkt->pkt.signature = newsig;
4402                   free_packet( node->pkt );
4403                   xfree( node->pkt );
4404                   node->pkt = newpkt;
4405                   modified = 1;
4406
4407                   if(notation)
4408                     {
4409                       /* Snip off the notation list from the sig */
4410                       free_notation(notation->next);
4411                       notation->next=NULL;
4412                     }
4413
4414                   xfree(user);
4415                 }
4416             }
4417         }
4418     }
4419
4420   free_notation(notation);
4421   free_secret_key( sk );
4422   return modified;
4423 }
4424
4425
4426 /****************
4427  * Select one user id or remove all selection if index is 0.
4428  * Returns: True if the selection changed;
4429  */
4430 static int
4431 menu_select_uid( KBNODE keyblock, int idx )
4432 {
4433     KBNODE node;
4434     int i;
4435
4436     /* first check that the index is valid */
4437     if( idx ) {
4438         for( i=0, node = keyblock; node; node = node->next ) {
4439             if( node->pkt->pkttype == PKT_USER_ID ) {
4440                 if( ++i == idx )
4441                     break;
4442             }
4443         }
4444         if( !node ) {
4445             tty_printf(_("No user ID with index %d\n"), idx );
4446             return 0;
4447         }
4448     }
4449     else { /* reset all */
4450         for( i=0, node = keyblock; node; node = node->next ) {
4451             if( node->pkt->pkttype == PKT_USER_ID )
4452                 node->flag &= ~NODFLG_SELUID;
4453         }
4454         return 1;
4455     }
4456     /* and toggle the new index */
4457     for( i=0, node = keyblock; node; node = node->next ) {
4458         if( node->pkt->pkttype == PKT_USER_ID ) {
4459             if( ++i == idx ) {
4460                 if( (node->flag & NODFLG_SELUID) )
4461                     node->flag &= ~NODFLG_SELUID;
4462                 else
4463                     node->flag |= NODFLG_SELUID;
4464             }
4465         }
4466     }
4467
4468     return 1;
4469 }
4470
4471 /* Search in the keyblock for a uid that matches namehash */
4472 static int
4473 menu_select_uid_namehash( KBNODE keyblock, const char *namehash )
4474 {
4475   byte hash[NAMEHASH_LEN];
4476   KBNODE node;
4477   int i;
4478
4479   assert(strlen(namehash)==NAMEHASH_LEN*2);
4480
4481   for(i=0;i<NAMEHASH_LEN;i++)
4482     hash[i]=hextobyte(&namehash[i*2]);
4483
4484   for(node=keyblock->next;node;node=node->next)
4485     {
4486       if(node->pkt->pkttype==PKT_USER_ID)
4487         {
4488           namehash_from_uid(node->pkt->pkt.user_id);
4489           if(memcmp(node->pkt->pkt.user_id->namehash,hash,NAMEHASH_LEN)==0)
4490             {
4491               if(node->flag&NODFLG_SELUID)
4492                 node->flag &= ~NODFLG_SELUID;
4493               else
4494                 node->flag |= NODFLG_SELUID;
4495
4496               break;
4497             }
4498         }
4499     }
4500
4501     if(!node)
4502       {
4503         tty_printf(_("No user ID with hash %s\n"),namehash);
4504         return 0;
4505       }
4506
4507   return 1;
4508 }
4509
4510 /****************
4511  * Select secondary keys
4512  * Returns: True if the selection changed;
4513  */
4514 static int
4515 menu_select_key( KBNODE keyblock, int idx )
4516 {
4517     KBNODE node;
4518     int i;
4519
4520     /* first check that the index is valid */
4521     if( idx ) {
4522         for( i=0, node = keyblock; node; node = node->next ) {
4523             if( node->pkt->pkttype == PKT_PUBLIC_SUBKEY
4524                 || node->pkt->pkttype == PKT_SECRET_SUBKEY ) {
4525                 if( ++i == idx )
4526                     break;
4527             }
4528         }
4529         if( !node ) {
4530             tty_printf(_("No subkey with index %d\n"), idx );
4531             return 0;
4532         }
4533     }
4534     else { /* reset all */
4535         for( i=0, node = keyblock; node; node = node->next ) {
4536             if( node->pkt->pkttype == PKT_PUBLIC_SUBKEY
4537                 || node->pkt->pkttype == PKT_SECRET_SUBKEY )
4538                 node->flag &= ~NODFLG_SELKEY;
4539         }
4540         return 1;
4541     }
4542     /* and set the new index */
4543     for( i=0, node = keyblock; node; node = node->next ) {
4544         if( node->pkt->pkttype == PKT_PUBLIC_SUBKEY
4545             || node->pkt->pkttype == PKT_SECRET_SUBKEY ) {
4546             if( ++i == idx ) {
4547                 if( (node->flag & NODFLG_SELKEY) )
4548                     node->flag &= ~NODFLG_SELKEY;
4549                 else
4550                     node->flag |= NODFLG_SELKEY;
4551             }
4552         }
4553     }
4554
4555     return 1;
4556 }
4557
4558
4559 static int
4560 count_uids_with_flag( KBNODE keyblock, unsigned flag )
4561 {
4562     KBNODE node;
4563     int i=0;
4564
4565     for( node = keyblock; node; node = node->next )
4566         if( node->pkt->pkttype == PKT_USER_ID && (node->flag & flag) )
4567             i++;
4568     return i;
4569 }
4570
4571 static int
4572 count_keys_with_flag( KBNODE keyblock, unsigned flag )
4573 {
4574     KBNODE node;
4575     int i=0;
4576
4577     for( node = keyblock; node; node = node->next )
4578         if( ( node->pkt->pkttype == PKT_PUBLIC_SUBKEY
4579               || node->pkt->pkttype == PKT_SECRET_SUBKEY)
4580             && (node->flag & flag) )
4581             i++;
4582     return i;
4583 }
4584
4585 static int
4586 count_uids( KBNODE keyblock )
4587 {
4588     KBNODE node;
4589     int i=0;
4590
4591     for( node = keyblock; node; node = node->next )
4592         if( node->pkt->pkttype == PKT_USER_ID )
4593             i++;
4594     return i;
4595 }
4596
4597
4598 /****************
4599  * Returns true if there is at least one selected user id
4600  */
4601 static int
4602 count_selected_uids( KBNODE keyblock )
4603 {
4604     return count_uids_with_flag( keyblock, NODFLG_SELUID);
4605 }
4606
4607 static int
4608 count_selected_keys( KBNODE keyblock )
4609 {
4610     return count_keys_with_flag( keyblock, NODFLG_SELKEY);
4611 }
4612
4613 /* returns how many real (i.e. not attribute) uids are unmarked */
4614 static int
4615 real_uids_left( KBNODE keyblock )
4616 {
4617   KBNODE node;
4618   int real=0;
4619
4620   for(node=keyblock;node;node=node->next)
4621     if(node->pkt->pkttype==PKT_USER_ID && !(node->flag&NODFLG_SELUID) &&
4622        !node->pkt->pkt.user_id->attrib_data)
4623       real++;
4624
4625   return real;
4626 }
4627
4628 /*
4629  * Ask whether the signature should be revoked.  If the user commits this,
4630  * flag bit MARK_A is set on the signature and the user ID.
4631  */
4632 static void
4633 ask_revoke_sig( KBNODE keyblock, KBNODE node )
4634 {
4635     int doit=0;
4636     PKT_user_id *uid;
4637     PKT_signature *sig = node->pkt->pkt.signature;
4638     KBNODE unode = find_prev_kbnode( keyblock, node, PKT_USER_ID );
4639
4640     if( !unode ) {
4641         log_error("Oops: no user ID for signature\n");
4642         return;
4643     }
4644
4645     uid=unode->pkt->pkt.user_id;
4646
4647     if(opt.with_colons)
4648       {
4649         if(uid->attrib_data)
4650           printf("uat:::::::::%u %lu",uid->numattribs,uid->attrib_len);
4651         else
4652           {
4653             printf("uid:::::::::");
4654             print_string (stdout, uid->name, uid->len, ':');
4655           }
4656
4657         printf("\n");
4658
4659         print_and_check_one_sig_colon(keyblock,node,NULL,NULL,NULL,NULL,1);
4660       }
4661     else
4662       {
4663         char *p=utf8_to_native(unode->pkt->pkt.user_id->name,
4664                          unode->pkt->pkt.user_id->len,0);
4665         tty_printf(_("user ID: \"%s\"\n"),p);
4666         xfree(p);
4667
4668         tty_printf(_("signed by your key %s on %s%s%s\n"),
4669                    keystr(sig->keyid),datestr_from_sig(sig),
4670                    sig->flags.exportable?"":_(" (non-exportable)"),"");
4671       }
4672     if(sig->flags.expired)
4673       {
4674         tty_printf(_("This signature expired on %s.\n"),
4675                    expirestr_from_sig(sig));
4676         /* Use a different question so we can have different help text */
4677         doit=cpr_get_answer_is_yes("ask_revoke_sig.expired",
4678                         _("Are you sure you still want to revoke it? (y/N) "));
4679       }
4680     else
4681       doit=cpr_get_answer_is_yes("ask_revoke_sig.one",
4682               _("Create a revocation certificate for this signature? (y/N) "));
4683
4684     if(doit) {
4685       node->flag |= NODFLG_MARK_A;
4686       unode->flag |= NODFLG_MARK_A;
4687     }
4688 }
4689
4690 /****************
4691  * Display all user ids of the current public key together with signatures
4692  * done by one of our keys.  Then walk over all this sigs and ask the user
4693  * whether he wants to revoke this signature.
4694  * Return: True when the keyblock has changed.
4695  */
4696 static int
4697 menu_revsig( KBNODE keyblock )
4698 {
4699     PKT_signature *sig;
4700     PKT_public_key *primary_pk;
4701     KBNODE node;
4702     int changed = 0;
4703     int rc, any, skip=1, all=!count_selected_uids(keyblock);
4704     struct revocation_reason_info *reason = NULL;
4705
4706     assert(keyblock->pkt->pkttype==PKT_PUBLIC_KEY);
4707
4708     /* FIXME: detect duplicates here  */
4709     tty_printf(_("You have signed these user IDs on key %s:\n"),
4710                keystr_from_pk(keyblock->pkt->pkt.public_key));
4711     for( node = keyblock; node; node = node->next ) {
4712         node->flag &= ~(NODFLG_SELSIG | NODFLG_MARK_A);
4713         if( node->pkt->pkttype == PKT_USER_ID ) {
4714             if( node->flag&NODFLG_SELUID || all ) {
4715               PKT_user_id *uid = node->pkt->pkt.user_id;
4716               /* Hmmm: Should we show only UIDs with a signature? */
4717               tty_printf("     ");
4718               tty_print_utf8_string( uid->name, uid->len );
4719               tty_printf("\n");
4720               skip=0;
4721             }
4722             else
4723               skip=1;
4724         }
4725         else if( !skip && node->pkt->pkttype == PKT_SIGNATURE
4726                 && ((sig = node->pkt->pkt.signature),
4727                      !seckey_available(sig->keyid)  ) )
4728           {
4729             if( (sig->sig_class&~3) == 0x10 )
4730               {
4731                 tty_printf("   ");
4732                 tty_printf(_("signed by your key %s on %s%s%s\n"),
4733                            keystr(sig->keyid), datestr_from_sig(sig),
4734                            sig->flags.exportable?"":_(" (non-exportable)"),
4735                            sig->flags.revocable?"":_(" (non-revocable)"));
4736                 if(sig->flags.revocable)
4737                   node->flag |= NODFLG_SELSIG;
4738               }
4739             else if( sig->sig_class == 0x30 )
4740               {
4741                 tty_printf("   ");
4742                 tty_printf(_("revoked by your key %s on %s\n"),
4743                            keystr(sig->keyid),datestr_from_sig(sig));
4744               }
4745           }
4746     }
4747
4748     tty_printf("\n");
4749
4750     /* ask */
4751     for( node = keyblock; node; node = node->next ) {
4752         if( !(node->flag & NODFLG_SELSIG) )
4753             continue;
4754         ask_revoke_sig( keyblock, node );
4755     }
4756
4757     /* present selected */
4758     any = 0;
4759     for( node = keyblock; node; node = node->next ) {
4760         if( !(node->flag & NODFLG_MARK_A) )
4761             continue;
4762         if( !any ) {
4763             any = 1;
4764             tty_printf(_("You are about to revoke these signatures:\n"));
4765         }
4766         if( node->pkt->pkttype == PKT_USER_ID ) {
4767             PKT_user_id *uid = node->pkt->pkt.user_id;
4768             tty_printf("     ");
4769             tty_print_utf8_string( uid->name, uid->len );
4770             tty_printf("\n");
4771         }
4772         else if( node->pkt->pkttype == PKT_SIGNATURE ) {
4773             sig = node->pkt->pkt.signature;
4774             tty_printf("   ");
4775             tty_printf(_("signed by your key %s on %s%s%s\n"),
4776                        keystr(sig->keyid), datestr_from_sig(sig),"",
4777                        sig->flags.exportable?"":_(" (non-exportable)") );
4778         }
4779     }
4780     if( !any )
4781         return 0; /* none selected */
4782
4783     if( !cpr_get_answer_is_yes("ask_revoke_sig.okay",
4784          _("Really create the revocation certificates? (y/N) ")) )
4785         return 0; /* forget it */
4786
4787     reason = ask_revocation_reason( 0, 1, 0 );
4788     if( !reason ) { /* user decided to cancel */
4789         return 0;
4790     }
4791
4792     /* now we can sign the user ids */
4793   reloop: /* (must use this, because we are modifing the list) */
4794     primary_pk = keyblock->pkt->pkt.public_key;
4795     for( node=keyblock; node; node = node->next ) {
4796         KBNODE unode;
4797         PACKET *pkt;
4798         struct sign_attrib attrib;
4799         PKT_secret_key *sk;
4800
4801         if( !(node->flag & NODFLG_MARK_A)
4802             || node->pkt->pkttype != PKT_SIGNATURE )
4803             continue;
4804         unode = find_prev_kbnode( keyblock, node, PKT_USER_ID );
4805         assert( unode ); /* we already checked this */
4806
4807         memset( &attrib, 0, sizeof attrib );
4808         attrib.reason = reason;
4809         attrib.non_exportable=!node->pkt->pkt.signature->flags.exportable;
4810
4811         node->flag &= ~NODFLG_MARK_A;
4812         sk = xmalloc_secure_clear( sizeof *sk );
4813         if( get_seckey( sk, node->pkt->pkt.signature->keyid ) ) {
4814             log_info(_("no secret key\n"));
4815             continue;
4816         }
4817         rc = make_keysig_packet( &sig, primary_pk,
4818                                        unode->pkt->pkt.user_id,
4819                                        NULL,
4820                                        sk,
4821                                        0x30, 0, 0, 0, 0,
4822                                        sign_mk_attrib,
4823                                        &attrib );
4824         free_secret_key(sk);
4825         if( rc ) {
4826             log_error(_("signing failed: %s\n"), g10_errstr(rc));
4827             release_revocation_reason_info( reason );
4828             return changed;
4829         }
4830         changed = 1; /* we changed the keyblock */
4831         update_trust = 1;
4832         /* Are we revoking our own uid? */
4833         if(primary_pk->keyid[0]==sig->keyid[0] &&
4834            primary_pk->keyid[1]==sig->keyid[1])
4835           unode->pkt->pkt.user_id->is_revoked=1;
4836         pkt = xmalloc_clear( sizeof *pkt );
4837         pkt->pkttype = PKT_SIGNATURE;
4838         pkt->pkt.signature = sig;
4839         insert_kbnode( unode, new_kbnode(pkt), 0 );
4840         goto reloop;
4841     }
4842
4843     release_revocation_reason_info( reason );
4844     return changed;
4845 }
4846
4847 /* Revoke a user ID (i.e. revoke a user ID selfsig).  Return true if
4848    keyblock changed. */
4849 static int
4850 menu_revuid( KBNODE pub_keyblock, KBNODE sec_keyblock )
4851 {
4852   PKT_public_key *pk = pub_keyblock->pkt->pkt.public_key;
4853   PKT_secret_key *sk = copy_secret_key( NULL,
4854                                         sec_keyblock->pkt->pkt.secret_key );
4855   KBNODE node;
4856   int changed = 0;
4857   int rc;
4858   struct revocation_reason_info *reason = NULL;
4859
4860   /* Note that this is correct as per the RFCs, but nevertheless
4861      somewhat meaningless in the real world.  1991 did define the 0x30
4862      sig class, but PGP 2.x did not actually implement it, so it would
4863      probably be safe to use v4 revocations everywhere. -ds */
4864
4865   for( node = pub_keyblock; node; node = node->next )
4866     if(pk->version>3 || (node->pkt->pkttype==PKT_USER_ID &&
4867                          node->pkt->pkt.user_id->selfsigversion>3))
4868       {
4869         if((reason = ask_revocation_reason( 0, 1, 4 )))
4870           break;
4871         else
4872           goto leave;
4873       }
4874
4875  reloop: /* (better this way because we are modifing the keyring) */
4876   for( node = pub_keyblock; node; node = node->next )
4877     if(node->pkt->pkttype == PKT_USER_ID && (node->flag & NODFLG_SELUID))
4878       {
4879         PKT_user_id *uid=node->pkt->pkt.user_id;
4880
4881         if(uid->is_revoked)
4882           {
4883             char *user=utf8_to_native(uid->name,uid->len,0);
4884             log_info(_("user ID \"%s\" is already revoked\n"),user);
4885             xfree(user);
4886           }
4887         else
4888           {
4889             PACKET *pkt;
4890             PKT_signature *sig;
4891             struct sign_attrib attrib;
4892             u32 timestamp=make_timestamp();
4893
4894             if(uid->created>=timestamp)
4895               {
4896                 /* Okay, this is a problem.  The user ID selfsig was
4897                    created in the future, so we need to warn the user and
4898                    set our revocation timestamp one second after that so
4899                    everything comes out clean. */
4900
4901                 log_info(_("WARNING: a user ID signature is dated %d"
4902                            " seconds in the future\n"),uid->created-timestamp);
4903
4904                 timestamp=uid->created+1;
4905               }
4906
4907             memset( &attrib, 0, sizeof attrib );
4908             attrib.reason = reason;
4909
4910             node->flag &= ~NODFLG_SELUID;
4911
4912             rc = make_keysig_packet( &sig, pk, uid, NULL, sk, 0x30, 0,
4913                                      (reason==NULL)?3:0, timestamp, 0,
4914                                      sign_mk_attrib, &attrib );
4915             if( rc )
4916               {
4917                 log_error(_("signing failed: %s\n"), g10_errstr(rc));
4918                 goto leave;
4919               }
4920             else
4921               {
4922                 pkt = xmalloc_clear( sizeof *pkt );
4923                 pkt->pkttype = PKT_SIGNATURE;
4924                 pkt->pkt.signature = sig;
4925                 insert_kbnode( node, new_kbnode(pkt), 0 );
4926
4927                 /* If the trustdb has an entry for this key+uid then the
4928                    trustdb needs an update. */
4929                 if(!update_trust
4930                    && (get_validity(pk,uid)&TRUST_MASK)>=TRUST_UNDEFINED)
4931                   update_trust=1;
4932
4933                 changed = 1;
4934                 node->pkt->pkt.user_id->is_revoked=1;
4935
4936                 goto reloop;
4937               }
4938           }
4939       }
4940
4941   if(changed)
4942     commit_kbnode( &pub_keyblock );
4943
4944  leave:
4945   free_secret_key(sk);
4946   release_revocation_reason_info( reason );
4947   return changed;
4948 }
4949
4950 /****************
4951  * Revoke the whole key.
4952  */
4953 static int
4954 menu_revkey( KBNODE pub_keyblock, KBNODE sec_keyblock )
4955 {
4956   PKT_public_key *pk=pub_keyblock->pkt->pkt.public_key;
4957   PKT_secret_key *sk;
4958   int rc,changed = 0;
4959   struct revocation_reason_info *reason;
4960   PACKET *pkt;
4961   PKT_signature *sig;
4962
4963   if(pk->is_revoked)
4964     {
4965       tty_printf(_("Key %s is already revoked.\n"),keystr_from_pk(pk));
4966       return 0;
4967     }
4968
4969   reason = ask_revocation_reason( 1, 0, 0 );
4970   /* user decided to cancel */
4971   if( !reason )
4972     return 0;
4973
4974   sk = copy_secret_key( NULL, sec_keyblock->pkt->pkt.secret_key );
4975   rc = make_keysig_packet( &sig, pk, NULL, NULL, sk,
4976                            0x20, 0, opt.force_v4_certs?4:0, 0, 0,
4977                            revocation_reason_build_cb, reason );
4978   free_secret_key(sk);
4979   if( rc )
4980     {
4981       log_error(_("signing failed: %s\n"), g10_errstr(rc));
4982       goto scram;
4983     }
4984
4985   changed = 1; /* we changed the keyblock */
4986
4987   pkt = xmalloc_clear( sizeof *pkt );
4988   pkt->pkttype = PKT_SIGNATURE;
4989   pkt->pkt.signature = sig;
4990   insert_kbnode( pub_keyblock, new_kbnode(pkt), 0 );
4991   commit_kbnode( &pub_keyblock );
4992
4993   update_trust=1;
4994
4995  scram:
4996   release_revocation_reason_info( reason );
4997   return changed;
4998 }
4999
5000 static int
5001 menu_revsubkey( KBNODE pub_keyblock, KBNODE sec_keyblock )
5002 {
5003     PKT_public_key *mainpk;
5004     KBNODE node;
5005     int changed = 0;
5006     int rc;
5007     struct revocation_reason_info *reason = NULL;
5008
5009     reason = ask_revocation_reason( 1, 0, 0 );
5010     if( !reason ) { /* user decided to cancel */
5011         return 0;
5012     }
5013
5014   reloop: /* (better this way because we are modifing the keyring) */
5015     mainpk = pub_keyblock->pkt->pkt.public_key;
5016     for( node = pub_keyblock; node; node = node->next ) {
5017         if( node->pkt->pkttype == PKT_PUBLIC_SUBKEY
5018             && (node->flag & NODFLG_SELKEY) ) {
5019             PACKET *pkt;
5020             PKT_signature *sig;
5021             PKT_secret_key *sk;
5022             PKT_public_key *subpk = node->pkt->pkt.public_key;
5023             struct sign_attrib attrib;
5024
5025             if(subpk->is_revoked)
5026               {
5027                 tty_printf(_("Subkey %s is already revoked.\n"),
5028                            keystr_from_pk(subpk));
5029                 continue;
5030               }
5031
5032             memset( &attrib, 0, sizeof attrib );
5033             attrib.reason = reason;
5034
5035             node->flag &= ~NODFLG_SELKEY;
5036             sk = copy_secret_key( NULL, sec_keyblock->pkt->pkt.secret_key );
5037             rc = make_keysig_packet( &sig, mainpk, NULL, subpk, sk,
5038                                      0x28, 0, 0, 0, 0,
5039                                      sign_mk_attrib, &attrib );
5040             free_secret_key(sk);
5041             if( rc ) {
5042                 log_error(_("signing failed: %s\n"), g10_errstr(rc));
5043                 release_revocation_reason_info( reason );
5044                 return changed;
5045             }
5046             changed = 1; /* we changed the keyblock */
5047
5048             pkt = xmalloc_clear( sizeof *pkt );
5049             pkt->pkttype = PKT_SIGNATURE;
5050             pkt->pkt.signature = sig;
5051             insert_kbnode( node, new_kbnode(pkt), 0 );
5052             goto reloop;
5053         }
5054     }
5055     commit_kbnode( &pub_keyblock );
5056     /*commit_kbnode( &sec_keyblock );*/
5057
5058     /* No need to set update_trust here since signing keys no longer
5059        are used to certify other keys, so there is no change in trust
5060        when revoking/removing them */
5061
5062     release_revocation_reason_info( reason );
5063     return changed;
5064 }
5065
5066 /* Note that update_ownertrust is going to mark the trustdb dirty when
5067    enabling or disabling a key.  This is arguably sub-optimal as
5068    disabled keys are still counted in the web of trust, but perhaps
5069    not worth adding extra complexity to change. -ds */
5070 static int
5071 enable_disable_key( KBNODE keyblock, int disable )
5072 {
5073     PKT_public_key *pk = find_kbnode( keyblock, PKT_PUBLIC_KEY )
5074                             ->pkt->pkt.public_key;
5075     unsigned int trust, newtrust;
5076
5077     trust = newtrust = get_ownertrust (pk);
5078     newtrust &= ~TRUST_FLAG_DISABLED;
5079     if( disable )
5080         newtrust |= TRUST_FLAG_DISABLED;
5081     if( trust == newtrust )
5082         return 0; /* already in that state */
5083     update_ownertrust(pk, newtrust );
5084     return 0;
5085 }
5086
5087
5088 static void
5089 menu_showphoto( KBNODE keyblock )
5090 {
5091   KBNODE node;
5092   int select_all = !count_selected_uids(keyblock);
5093   int count=0;
5094   PKT_public_key *pk=NULL;
5095
5096   /* Look for the public key first.  We have to be really, really,
5097      explicit as to which photo this is, and what key it is a UID on
5098      since people may want to sign it. */
5099
5100   for( node = keyblock; node; node = node->next )
5101     {
5102       if( node->pkt->pkttype == PKT_PUBLIC_KEY )
5103         pk = node->pkt->pkt.public_key;
5104       else if( node->pkt->pkttype == PKT_USER_ID )
5105         {
5106           PKT_user_id *uid = node->pkt->pkt.user_id;
5107           count++;
5108
5109           if((select_all || (node->flag & NODFLG_SELUID)) &&
5110              uid->attribs!=NULL)
5111             {
5112               int i;
5113
5114               for(i=0;i<uid->numattribs;i++)
5115                 {
5116                   byte type;
5117                   u32 size;
5118
5119                   if(uid->attribs[i].type==ATTRIB_IMAGE &&
5120                      parse_image_header(&uid->attribs[i],&type,&size))
5121                     {
5122                       tty_printf(_("Displaying %s photo ID of size %ld for "
5123                                    "key %s (uid %d)\n"),
5124                                  image_type_to_string(type,1),
5125                                  (ulong)size,keystr_from_pk(pk),count);
5126                       show_photos(&uid->attribs[i],1,pk,NULL,uid);
5127                     }
5128                 }
5129             }
5130         }
5131     }
5132 }