dirmngr: Fix error handling.

[gnupg2.git] / g10 / keylist.c

/* keylist.c - Print information about OpenPGP keys
 * Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
 *               2008, 2010, 2012 Free Software Foundation, Inc.
 * Copyright (C) 2013, 2014  Werner Koch
 *
 * This file is part of GnuPG.
 *
 * GnuPG is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * GnuPG is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see <https://www.gnu.org/licenses/>.
 */

#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#ifdef HAVE_DOSISH_SYSTEM
# include <fcntl.h>             /* for setmode() */
#endif

#include "gpg.h"
#include "options.h"
#include "packet.h"
#include "status.h"
#include "keydb.h"
#include "photoid.h"
#include "util.h"
#include "ttyio.h"
#include "trustdb.h"
#include "main.h"
#include "i18n.h"
#include "status.h"
#include "call-agent.h"
#include "mbox-util.h"
#include "zb32.h"
#include "tofu.h"


static void list_all (ctrl_t, int, int);
static void list_one (ctrl_t ctrl,
                      strlist_t names, int secret, int mark_secret);
static void locate_one (ctrl_t ctrl, strlist_t names);
static void print_card_serialno (const char *serialno);

struct keylist_context
{
  int check_sigs;  /* If set signatures shall be verified.  */
  int good_sigs;   /* Counter used if CHECK_SIGS is set.  */
  int inv_sigs;    /* Counter used if CHECK_SIGS is set.  */
  int no_key;      /* Counter used if CHECK_SIGS is set.  */
  int oth_err;     /* Counter used if CHECK_SIGS is set.  */
  int no_validity; /* Do not show validity.  */
};


static void list_keyblock (ctrl_t ctrl,
                           kbnode_t keyblock, int secret, int has_secret,
                           int fpr, struct keylist_context *listctx);


/* The stream used to write attribute packets to.  */
static estream_t attrib_fp;


/* Release resources from a keylist context.  */
static void
keylist_context_release (struct keylist_context *listctx)
{
  (void)listctx; /* Nothing to release.  */
}


/* List the keys.  If list is NULL, all available keys are listed.
   With LOCATE_MODE set the locate algorithm is used to find a
   key.  */
void
public_key_list (ctrl_t ctrl, strlist_t list, int locate_mode)
{
#ifndef NO_TRUST_MODELS
  if (opt.with_colons)
    {
      byte trust_model, marginals, completes, cert_depth, min_cert_level;
      ulong created, nextcheck;

      read_trust_options (&trust_model, &created, &nextcheck,
                          &marginals, &completes, &cert_depth, &min_cert_level);

      es_fprintf (es_stdout, "tru:");

      if (nextcheck && nextcheck <= make_timestamp ())
        es_fprintf (es_stdout, "o");
      if (trust_model != opt.trust_model)
        es_fprintf (es_stdout, "t");
      if (opt.trust_model == TM_PGP || opt.trust_model == TM_CLASSIC
          || opt.trust_model == TM_TOFU_PGP)
        {
          if (marginals != opt.marginals_needed)
            es_fprintf (es_stdout, "m");
          if (completes != opt.completes_needed)
            es_fprintf (es_stdout, "c");
          if (cert_depth != opt.max_cert_depth)
            es_fprintf (es_stdout, "d");
          if (min_cert_level != opt.min_cert_level)
            es_fprintf (es_stdout, "l");
        }

      es_fprintf (es_stdout, ":%d:%lu:%lu", trust_model, created, nextcheck);

      /* Only show marginals, completes, and cert_depth in the classic
         or PGP trust models since they are not meaningful
         otherwise. */

      if (trust_model == TM_PGP || trust_model == TM_CLASSIC)
        es_fprintf (es_stdout, ":%d:%d:%d", marginals, completes, cert_depth);
      es_fprintf (es_stdout, "\n");
    }
#endif /*!NO_TRUST_MODELS*/

  /* We need to do the stale check right here because it might need to
     update the keyring while we already have the keyring open.  This
     is very bad for W32 because of a sharing violation. For real OSes
     it might lead to false results if we are later listing a keyring
     which is associated with the inode of a deleted file.  */
  check_trustdb_stale (ctrl);

#ifdef USE_TOFU
  tofu_begin_batch_update (ctrl);
#endif

  if (locate_mode)
    locate_one (ctrl, list);
  else if (!list)
    list_all (ctrl, 0, opt.with_secret);
  else
    list_one (ctrl, list, 0, opt.with_secret);

#ifdef USE_TOFU
  tofu_end_batch_update (ctrl);
#endif
}


void
secret_key_list (ctrl_t ctrl, strlist_t list)
{
  (void)ctrl;

  check_trustdb_stale (ctrl);

  if (!list)
    list_all (ctrl, 1, 0);
  else                          /* List by user id */
    list_one (ctrl, list, 1, 0);
}

char *
format_seckey_info (PKT_public_key *pk)
{
  u32 keyid[2];
  char *p;
  char pkstrbuf[PUBKEY_STRING_SIZE];
  char *info;

  keyid_from_pk (pk, keyid);
  p = get_user_id_native (keyid);

  info = xtryasprintf ("sec  %s/%s %s %s",
                       pubkey_string (pk, pkstrbuf, sizeof pkstrbuf),
                       keystr (keyid), datestr_from_pk (pk), p);

  xfree (p);

  return info;
}

void
print_seckey_info (PKT_public_key *pk)
{
  char *p = format_seckey_info (pk);
  tty_printf ("\n%s\n", p);
  xfree (p);
}

/* Print information about the public key.  With FP passed as NULL,
   the tty output interface is used, otherwise output is directted to
   the given stream.  */
void
print_pubkey_info (estream_t fp, PKT_public_key *pk)
{
  u32 keyid[2];
  char *p;
  char pkstrbuf[PUBKEY_STRING_SIZE];

  keyid_from_pk (pk, keyid);

  /* If the pk was chosen by a particular user ID, that is the one to
     print.  */
  if (pk->user_id)
    p = utf8_to_native (pk->user_id->name, pk->user_id->len, 0);
  else
    p = get_user_id_native (keyid);

  if (fp)
    tty_printf ("\n");
  tty_fprintf (fp, "%s  %s/%s %s %s\n",
               pk->flags.primary? "pub":"sub",
               pubkey_string (pk, pkstrbuf, sizeof pkstrbuf),
               keystr (keyid), datestr_from_pk (pk), p);
  xfree (p);
}


/* Print basic information of a secret key including the card serial
   number information.  */
#ifdef ENABLE_CARD_SUPPORT
void
print_card_key_info (estream_t fp, kbnode_t keyblock)
{
  kbnode_t node;
  char *hexgrip;
  char *serialno;
  int s2k_char;
  char pkstrbuf[PUBKEY_STRING_SIZE];
  int indent;

  for (node = keyblock; node; node = node->next)
    {
      if (node->pkt->pkttype == PKT_PUBLIC_KEY
          || node->pkt->pkttype == PKT_PUBLIC_SUBKEY)
        {
          int rc;
          PKT_public_key *pk = node->pkt->pkt.public_key;

          serialno = NULL;
          rc = hexkeygrip_from_pk (pk, &hexgrip);
          if (rc)
            {
              log_error ("error computing a keygrip: %s\n", gpg_strerror (rc));
              s2k_char = '?';
            }
          else if (!agent_get_keyinfo (NULL, hexgrip, &serialno, NULL))
            s2k_char = serialno? '>':' ';
          else
            s2k_char = '#';  /* Key not found.  */

          tty_fprintf (fp, "%s%c  %s/%s  %n",
                       node->pkt->pkttype == PKT_PUBLIC_KEY ? "sec" : "ssb",
                       s2k_char,
                       pubkey_string (pk, pkstrbuf, sizeof pkstrbuf),
                       keystr_from_pk (pk),
                       &indent);
          tty_fprintf (fp, _("created: %s"), datestr_from_pk (pk));
          tty_fprintf (fp, "  ");
          tty_fprintf (fp, _("expires: %s"), expirestr_from_pk (pk));
          if (serialno)
            {
              tty_fprintf (fp, "\n%*s%s", indent, "", _("card-no: "));
              if (strlen (serialno) == 32
                  && !strncmp (serialno, "D27600012401", 12))
                {
                  /* This is an OpenPGP card.  Print the relevant part.  */
                  /* Example: D2760001240101010001000003470000 */
                  /*                          xxxxyyyyyyyy     */
                  tty_fprintf (fp, "%.*s %.*s", 4, serialno+16, 8, serialno+20);
                }
              else
                tty_fprintf (fp, "%s", serialno);
            }
          tty_fprintf (fp, "\n");
          xfree (hexgrip);
          xfree (serialno);
        }
    }
}
#endif /*ENABLE_CARD_SUPPORT*/


/* Flags = 0x01 hashed 0x02 critical.  */
static void
status_one_subpacket (sigsubpkttype_t type, size_t len, int flags,
                      const byte * buf)
{
  char status[40];

  /* Don't print these. */
  if (len > 256)
    return;

  snprintf (status, sizeof status,
            "%d %u %u ", type, flags, (unsigned int) len);

  write_status_text_and_buffer (STATUS_SIG_SUBPACKET, status, buf, len, 0);
}


/* Print a policy URL.  Allowed values for MODE are:
 *  -1 - print to the TTY
 *   0 - print to stdout.
 *   1 - use log_info and emit status messages.
 *   2 - emit only status messages.
 */
void
show_policy_url (PKT_signature * sig, int indent, int mode)
{
  const byte *p;
  size_t len;
  int seq = 0, crit;
  estream_t fp = mode < 0? NULL : mode ? log_get_stream () : es_stdout;

  while ((p =
          enum_sig_subpkt (sig->hashed, SIGSUBPKT_POLICY, &len, &seq, &crit)))
    {
      if (mode != 2)
        {
          const char *str;

          tty_fprintf (fp, "%*s", indent, "");

          if (crit)
            str = _("Critical signature policy: ");
          else
            str = _("Signature policy: ");
          if (mode > 0)
            log_info ("%s", str);
          else
            tty_fprintf (fp, "%s", str);
          tty_print_utf8_string2 (fp, p, len, 0);
          tty_fprintf (fp, "\n");
        }

      if (mode > 0)
        write_status_buffer (STATUS_POLICY_URL, p, len, 0);
    }
}


/* Print a keyserver URL.  Allowed values for MODE are:
 *  -1 - print to the TTY
 *   0 - print to stdout.
 *   1 - use log_info and emit status messages.
 *   2 - emit only status messages.
 */
void
show_keyserver_url (PKT_signature * sig, int indent, int mode)
{
  const byte *p;
  size_t len;
  int seq = 0, crit;
  estream_t fp = mode < 0? NULL : mode ? log_get_stream () : es_stdout;

  while ((p =
          enum_sig_subpkt (sig->hashed, SIGSUBPKT_PREF_KS, &len, &seq,
                           &crit)))
    {
      if (mode != 2)
        {
          const char *str;

          tty_fprintf (fp, "%*s", indent, "");

          if (crit)
            str = _("Critical preferred keyserver: ");
          else
            str = _("Preferred keyserver: ");
          if (mode > 0)
            log_info ("%s", str);
          else
            tty_fprintf (es_stdout, "%s", str);
          tty_print_utf8_string2 (fp, p, len, 0);
          tty_fprintf (fp, "\n");
        }

      if (mode > 0)
        status_one_subpacket (SIGSUBPKT_PREF_KS, len,
                              (crit ? 0x02 : 0) | 0x01, p);
    }
}


/* Print notation data.  Allowed values for MODE are:
 *  -1 - print to the TTY
 *   0 - print to stdout.
 *   1 - use log_info and emit status messages.
 *   2 - emit only status messages.
 *
 * Defined bits in WHICH:
 *   1 - standard notations
 *   2 - user notations
 */
void
show_notation (PKT_signature * sig, int indent, int mode, int which)
{
  estream_t fp = mode < 0? NULL : mode ? log_get_stream () : es_stdout;
  notation_t nd, notations;

  if (which == 0)
    which = 3;

  notations = sig_to_notation (sig);

  /* There may be multiple notations in the same sig. */
  for (nd = notations; nd; nd = nd->next)
    {
      if (mode != 2)
        {
          int has_at = !!strchr (nd->name, '@');

          if ((which & 1 && !has_at) || (which & 2 && has_at))
            {
              const char *str;

              tty_fprintf (fp, "%*s", indent, "");

              if (nd->flags.critical)
                str = _("Critical signature notation: ");
              else
                str = _("Signature notation: ");
              if (mode > 0)
                log_info ("%s", str);
              else
                tty_fprintf (es_stdout, "%s", str);
              /* This is all UTF8 */
              tty_print_utf8_string2 (fp, nd->name, strlen (nd->name), 0);
              tty_fprintf (fp, "=");
              tty_print_utf8_string2 (fp, nd->value, strlen (nd->value), 0);
              /* (We need to use log_printf so that the next call to a
                  log function does not insert an extra LF.)  */
              if (mode > 0)
                log_printf ("\n");
              else
                tty_fprintf (fp, "\n");
            }
        }

      if (mode > 0)
        {
          write_status_buffer (STATUS_NOTATION_NAME,
                               nd->name, strlen (nd->name), 0);
          if (nd->flags.critical || nd->flags.human)
            write_status_text (STATUS_NOTATION_FLAGS,
                               nd->flags.critical && nd->flags.human? "1 1" :
                               nd->flags.critical? "1 0" : "0 1");
          write_status_buffer (STATUS_NOTATION_DATA,
                               nd->value, strlen (nd->value), 50);
        }
    }

  free_notation (notations);
}


static void
print_signature_stats (struct keylist_context *s)
{
  if (!s->check_sigs)
    return;  /* Signature checking was not requested.  */

  /* Better flush stdout so that the stats are always printed after
   * the output.  */
  es_fflush (es_stdout);

  if (s->good_sigs)
    log_info (ngettext("%d good signature\n",
                       "%d good signatures\n", s->good_sigs), s->good_sigs);

  if (s->inv_sigs)
    log_info (ngettext("%d bad signature\n",
                       "%d bad signatures\n", s->inv_sigs), s->inv_sigs);

  if (s->no_key)
    log_info (ngettext("%d signature not checked due to a missing key\n",
                       "%d signatures not checked due to missing keys\n",
                       s->no_key), s->no_key);

  if (s->oth_err)
    log_info (ngettext("%d signature not checked due to an error\n",
                       "%d signatures not checked due to errors\n",
                       s->oth_err), s->oth_err);
}


/* List all keys.  If SECRET is true only secret keys are listed.  If
   MARK_SECRET is true secret keys are indicated in a public key
   listing.  */
static void
list_all (ctrl_t ctrl, int secret, int mark_secret)
{
  KEYDB_HANDLE hd;
  KBNODE keyblock = NULL;
  int rc = 0;
  int any_secret;
  const char *lastresname, *resname;
  struct keylist_context listctx;

  memset (&listctx, 0, sizeof (listctx));
  if (opt.check_sigs)
    listctx.check_sigs = 1;

  hd = keydb_new ();
  if (!hd)
    rc = gpg_error_from_syserror ();
  else
    rc = keydb_search_first (hd);
  if (rc)
    {
      if (gpg_err_code (rc) != GPG_ERR_NOT_FOUND)
        log_error ("keydb_search_first failed: %s\n", gpg_strerror (rc));
      goto leave;
    }

  lastresname = NULL;
  do
    {
      rc = keydb_get_keyblock (hd, &keyblock);
      if (rc)
        {
          if (gpg_err_code (rc) == GPG_ERR_LEGACY_KEY)
            continue;  /* Skip legacy keys.  */
          log_error ("keydb_get_keyblock failed: %s\n", gpg_strerror (rc));
          goto leave;
        }

      if (secret || mark_secret)
        any_secret = !agent_probe_any_secret_key (NULL, keyblock);
      else
        any_secret = 0;

      if (secret && !any_secret)
        ; /* Secret key listing requested but this isn't one.  */
      else
        {
          if (!opt.with_colons)
            {
              resname = keydb_get_resource_name (hd);
              if (lastresname != resname)
                {
                  int i;

                  es_fprintf (es_stdout, "%s\n", resname);
                  for (i = strlen (resname); i; i--)
                    es_putc ('-', es_stdout);
                  es_putc ('\n', es_stdout);
                  lastresname = resname;
                }
            }
          merge_keys_and_selfsig (keyblock);
          list_keyblock (ctrl, keyblock, secret, any_secret, opt.fingerprint,
                         &listctx);
        }
      release_kbnode (keyblock);
      keyblock = NULL;
    }
  while (!(rc = keydb_search_next (hd)));
  es_fflush (es_stdout);
  if (rc && gpg_err_code (rc) != GPG_ERR_NOT_FOUND)
    log_error ("keydb_search_next failed: %s\n", gpg_strerror (rc));
  if (keydb_get_skipped_counter (hd))
    log_info (ngettext("Warning: %lu key skipped due to its large size\n",
                       "Warning: %lu keys skipped due to their large sizes\n",
                       keydb_get_skipped_counter (hd)),
              keydb_get_skipped_counter (hd));

  if (opt.check_sigs && !opt.with_colons)
    print_signature_stats (&listctx);

 leave:
  keylist_context_release (&listctx);
  release_kbnode (keyblock);
  keydb_release (hd);
}


static void
list_one (ctrl_t ctrl, strlist_t names, int secret, int mark_secret)
{
  int rc = 0;
  KBNODE keyblock = NULL;
  GETKEY_CTX ctx;
  const char *resname;
  const char *keyring_str = _("Keyring");
  int i;
  struct keylist_context listctx;

  memset (&listctx, 0, sizeof (listctx));
  if (!secret && opt.check_sigs)
    listctx.check_sigs = 1;

  /* fixme: using the bynames function has the disadvantage that we
   * don't know wether one of the names given was not found.  OTOH,
   * this function has the advantage to list the names in the
   * sequence as defined by the keyDB and does not duplicate
   * outputs.  A solution could be do test whether all given have
   * been listed (this needs a way to use the keyDB search
   * functions) or to have the search function return indicators for
   * found names.  Yet another way is to use the keydb search
   * facilities directly. */
  rc = getkey_bynames (&ctx, NULL, names, secret, &keyblock);
  if (rc)
    {
      log_error ("error reading key: %s\n", gpg_strerror (rc));
      getkey_end (ctx);
      return;
    }

  do
    {
      if ((opt.list_options & LIST_SHOW_KEYRING) && !opt.with_colons)
        {
          resname = keydb_get_resource_name (get_ctx_handle (ctx));
          es_fprintf (es_stdout, "%s: %s\n", keyring_str, resname);
          for (i = strlen (resname) + strlen (keyring_str) + 2; i; i--)
            es_putc ('-', es_stdout);
          es_putc ('\n', es_stdout);
        }
      list_keyblock (ctrl,
                     keyblock, secret, mark_secret, opt.fingerprint, &listctx);
      release_kbnode (keyblock);
    }
  while (!getkey_next (ctx, NULL, &keyblock));
  getkey_end (ctx);

  if (opt.check_sigs && !opt.with_colons)
    print_signature_stats (&listctx);

  keylist_context_release (&listctx);
}


static void
locate_one (ctrl_t ctrl, strlist_t names)
{
  int rc = 0;
  strlist_t sl;
  GETKEY_CTX ctx = NULL;
  KBNODE keyblock = NULL;
  struct keylist_context listctx;

  memset (&listctx, 0, sizeof (listctx));
  if (opt.check_sigs)
    listctx.check_sigs = 1;

  for (sl = names; sl; sl = sl->next)
    {
      rc = get_best_pubkey_byname (ctrl, &ctx, NULL, sl->d, &keyblock, 1, 0);
      if (rc)
        {
          if (gpg_err_code (rc) != GPG_ERR_NO_PUBKEY)
            log_error ("error reading key: %s\n", gpg_strerror (rc));
          else if (opt.verbose)
            log_info (_("key \"%s\" not found: %s\n"),
                      sl->d, gpg_strerror (rc));
        }
      else
        {
          do
            {
              list_keyblock (ctrl, keyblock, 0, 0, opt.fingerprint, &listctx);
              release_kbnode (keyblock);
            }
          while (ctx && !getkey_next (ctx, NULL, &keyblock));
          getkey_end (ctx);
          ctx = NULL;
        }
    }

  if (opt.check_sigs && !opt.with_colons)
    print_signature_stats (&listctx);

  keylist_context_release (&listctx);
}


static void
print_key_data (PKT_public_key * pk)
{
  int n = pk ? pubkey_get_npkey (pk->pubkey_algo) : 0;
  int i;

  for (i = 0; i < n; i++)
    {
      es_fprintf (es_stdout, "pkd:%d:%u:", i, mpi_get_nbits (pk->pkey[i]));
      mpi_print (es_stdout, pk->pkey[i], 1);
      es_putc (':', es_stdout);
      es_putc ('\n', es_stdout);
    }
}

static void
print_capabilities (PKT_public_key *pk, KBNODE keyblock)
{
  unsigned int use = pk->pubkey_usage;
  int c_printed = 0;

  if (use & PUBKEY_USAGE_ENC)
    es_putc ('e', es_stdout);

  if (use & PUBKEY_USAGE_SIG)
    {
      es_putc ('s', es_stdout);
      if (pk->flags.primary)
        {
          es_putc ('c', es_stdout);
          /* The PUBKEY_USAGE_CERT flag was introduced later and we
             used to always print 'c' for a primary key.  To avoid any
             regression here we better track whether we printed 'c'
             already.  */
          c_printed = 1;
        }
    }

  if ((use & PUBKEY_USAGE_CERT) && !c_printed)
    es_putc ('c', es_stdout);

  if ((use & PUBKEY_USAGE_AUTH))
    es_putc ('a', es_stdout);

  if ((use & PUBKEY_USAGE_UNKNOWN))
    es_putc ('?', es_stdout);

  if (keyblock)
    {
      /* Figure out the usable capabilities.  */
      KBNODE k;
      int enc = 0, sign = 0, cert = 0, auth = 0, disabled = 0;

      for (k = keyblock; k; k = k->next)
        {
          if (k->pkt->pkttype == PKT_PUBLIC_KEY
              || k->pkt->pkttype == PKT_PUBLIC_SUBKEY)
            {
              pk = k->pkt->pkt.public_key;

              if (pk->flags.primary)
                disabled = pk_is_disabled (pk);

              if (pk->flags.valid && !pk->flags.revoked && !pk->has_expired)
                {
                  if (pk->pubkey_usage & PUBKEY_USAGE_ENC)
                    enc = 1;
                  if (pk->pubkey_usage & PUBKEY_USAGE_SIG)
                    {
                      sign = 1;
                      if (pk->flags.primary)
                        cert = 1;
                    }
                  if (pk->pubkey_usage & PUBKEY_USAGE_CERT)
                    cert = 1;
                  if ((pk->pubkey_usage & PUBKEY_USAGE_AUTH))
                    auth = 1;
                }
            }
        }
      if (enc)
        es_putc ('E', es_stdout);
      if (sign)
        es_putc ('S', es_stdout);
      if (cert)
        es_putc ('C', es_stdout);
      if (auth)
        es_putc ('A', es_stdout);
      if (disabled)
        es_putc ('D', es_stdout);
    }

  es_putc (':', es_stdout);
}


/* FLAGS: 0x01 hashed
          0x02 critical  */
static void
print_one_subpacket (sigsubpkttype_t type, size_t len, int flags,
                     const byte * buf)
{
  size_t i;

  es_fprintf (es_stdout, "spk:%d:%u:%u:", type, flags, (unsigned int) len);

  for (i = 0; i < len; i++)
    {
      /* printable ascii other than : and % */
      if (buf[i] >= 32 && buf[i] <= 126 && buf[i] != ':' && buf[i] != '%')
        es_fprintf (es_stdout, "%c", buf[i]);
      else
        es_fprintf (es_stdout, "%%%02X", buf[i]);
    }

  es_fprintf (es_stdout, "\n");
}


void
print_subpackets_colon (PKT_signature * sig)
{
  byte *i;

  log_assert (opt.show_subpackets);

  for (i = opt.show_subpackets; *i; i++)
    {
      const byte *p;
      size_t len;
      int seq, crit;

      seq = 0;

      while ((p = enum_sig_subpkt (sig->hashed, *i, &len, &seq, &crit)))
        print_one_subpacket (*i, len, 0x01 | (crit ? 0x02 : 0), p);

      seq = 0;

      while ((p = enum_sig_subpkt (sig->unhashed, *i, &len, &seq, &crit)))
        print_one_subpacket (*i, len, 0x00 | (crit ? 0x02 : 0), p);
    }
}


void
dump_attribs (const PKT_user_id *uid, PKT_public_key *pk)
{
  int i;

  if (!attrib_fp)
    return;

  for (i = 0; i < uid->numattribs; i++)
    {
      if (is_status_enabled ())
        {
          byte array[MAX_FINGERPRINT_LEN], *p;
          char buf[(MAX_FINGERPRINT_LEN * 2) + 90];
          size_t j, n;

          if (!pk)
            BUG ();
          fingerprint_from_pk (pk, array, &n);

          p = array;
          for (j = 0; j < n; j++, p++)
            sprintf (buf + 2 * j, "%02X", *p);

          sprintf (buf + strlen (buf), " %lu %u %u %u %lu %lu %u",
                   (ulong) uid->attribs[i].len, uid->attribs[i].type, i + 1,
                   uid->numattribs, (ulong) uid->created,
                   (ulong) uid->expiredate,
                   ((uid->is_primary ? 0x01 : 0) | (uid->
                                                    is_revoked ? 0x02 : 0) |
                    (uid->is_expired ? 0x04 : 0)));
          write_status_text (STATUS_ATTRIBUTE, buf);
        }

      es_fwrite (uid->attribs[i].data, uid->attribs[i].len, 1, attrib_fp);
      es_fflush (attrib_fp);
    }
}


static void
list_keyblock_print (ctrl_t ctrl, kbnode_t keyblock, int secret, int fpr,
                     struct keylist_context *listctx)
{
  int rc;
  KBNODE kbctx;
  KBNODE node;
  PKT_public_key *pk;
  int skip_sigs = 0;
  char *hexgrip = NULL;
  char *serialno = NULL;

  /* Get the keyid from the keyblock.  */
  node = find_kbnode (keyblock, PKT_PUBLIC_KEY);
  if (!node)
    {
      log_error ("Oops; key lost!\n");
      dump_kbnode (keyblock);
      return;
    }

  pk = node->pkt->pkt.public_key;

  if (secret || opt.with_keygrip)
    {
      rc = hexkeygrip_from_pk (pk, &hexgrip);
      if (rc)
        log_error ("error computing a keygrip: %s\n", gpg_strerror (rc));
    }

  if (secret)
    {
      /* Encode some info about the secret key in SECRET.  */
      if (!agent_get_keyinfo (NULL, hexgrip, &serialno, NULL))
        secret = serialno? 3 : 1;
      else
        secret = 2;  /* Key not found.  */
    }

  if (!listctx->no_validity)
    check_trustdb_stale (ctrl);

  /* Print the "pub" line and in KF_NONE mode the fingerprint.  */
  print_key_line (es_stdout, pk, secret);

  if (fpr)
    print_fingerprint (NULL, pk, 0);

  if (opt.with_keygrip && hexgrip)
    es_fprintf (es_stdout, "      Keygrip = %s\n", hexgrip);

  if (serialno)
    print_card_serialno (serialno);

  if (opt.with_key_data)
    print_key_data (pk);

  for (kbctx = NULL; (node = walk_kbnode (keyblock, &kbctx, 0));)
    {
      if (node->pkt->pkttype == PKT_USER_ID)
        {
          PKT_user_id *uid = node->pkt->pkt.user_id;
          int indent;
          int kl = opt.keyid_format == KF_NONE? 10 : keystrlen ();

          if ((uid->is_expired || uid->is_revoked)
              && !(opt.list_options & LIST_SHOW_UNUSABLE_UIDS))
            {
              skip_sigs = 1;
              continue;
            }
          else
            skip_sigs = 0;

          if (attrib_fp && uid->attrib_data != NULL)
            dump_attribs (uid, pk);

          if ((uid->is_revoked || uid->is_expired)
              || ((opt.list_options & LIST_SHOW_UID_VALIDITY)
                  && !listctx->no_validity))
            {
              const char *validity;

              validity = uid_trust_string_fixed (ctrl, pk, uid);
              indent = ((kl + (opt.legacy_list_mode? 9:11))
                        - atoi (uid_trust_string_fixed (ctrl, NULL, NULL)));
              if (indent < 0 || indent > 40)
                indent = 0;

              es_fprintf (es_stdout, "uid%*s%s ", indent, "", validity);
            }
          else
            {
              indent = kl + (opt.legacy_list_mode? 10:12);
              es_fprintf (es_stdout, "uid%*s", indent, "");
            }

          print_utf8_buffer (es_stdout, uid->name, uid->len);
          es_putc ('\n', es_stdout);

          if (opt.with_wkd_hash)
            {
              char *mbox, *hash, *p;
              char hashbuf[32];

              mbox = mailbox_from_userid (uid->name);
              if (mbox && (p = strchr (mbox, '@')))
                {
                  *p++ = 0;
                  gcry_md_hash_buffer (GCRY_MD_SHA1, hashbuf,
                                       mbox, strlen (mbox));
                  hash = zb32_encode (hashbuf, 8*20);
                  if (hash)
                    {
                      es_fprintf (es_stdout, "   %*s%s@%s\n",
                                  indent, "", hash, p);
                      xfree (hash);
                    }
                }
              xfree (mbox);
            }

          if ((opt.list_options & LIST_SHOW_PHOTOS) && uid->attribs != NULL)
            show_photos (ctrl, uid->attribs, uid->numattribs, pk, uid);
        }
      else if (node->pkt->pkttype == PKT_PUBLIC_SUBKEY)
        {
          PKT_public_key *pk2 = node->pkt->pkt.public_key;

          if ((pk2->flags.revoked || pk2->has_expired)
              && !(opt.list_options & LIST_SHOW_UNUSABLE_SUBKEYS))
            {
              skip_sigs = 1;
              continue;
            }
          else
            skip_sigs = 0;

          xfree (serialno); serialno = NULL;
          xfree (hexgrip); hexgrip = NULL;
          if (secret || opt.with_keygrip)
            {
              rc = hexkeygrip_from_pk (pk2, &hexgrip);
              if (rc)
                log_error ("error computing a keygrip: %s\n",
                           gpg_strerror (rc));
            }
          if (secret)
            {
              if (!agent_get_keyinfo (NULL, hexgrip, &serialno, NULL))
                secret = serialno? 3 : 1;
              else
                secret = '2';  /* Key not found.  */
            }

          /* Print the "sub" line.  */
          print_key_line (es_stdout, pk2, secret);
          if (fpr > 1 || opt.with_subkey_fingerprint)
            {
              print_fingerprint (NULL, pk2, 0);
              if (serialno)
                print_card_serialno (serialno);
            }
          if (opt.with_keygrip && hexgrip)
            es_fprintf (es_stdout, "      Keygrip = %s\n", hexgrip);
          if (opt.with_key_data)
            print_key_data (pk2);
        }
      else if (opt.list_sigs
               && node->pkt->pkttype == PKT_SIGNATURE && !skip_sigs)
        {
          PKT_signature *sig = node->pkt->pkt.signature;
          int sigrc;
          char *sigstr;

          if (listctx->check_sigs)
            {
              rc = check_key_signature (keyblock, node, NULL);
              switch (gpg_err_code (rc))
                {
                case 0:
                  listctx->good_sigs++;
                  sigrc = '!';
                  break;
                case GPG_ERR_BAD_SIGNATURE:
                  listctx->inv_sigs++;
                  sigrc = '-';
                  break;
                case GPG_ERR_NO_PUBKEY:
                case GPG_ERR_UNUSABLE_PUBKEY:
                  listctx->no_key++;
                  continue;
                default:
                  listctx->oth_err++;
                  sigrc = '%';
                  break;
                }

              /* TODO: Make sure a cached sig record here still has
                 the pk that issued it.  See also
                 keyedit.c:print_and_check_one_sig */
            }
          else
            {
              rc = 0;
              sigrc = ' ';
            }

          if (sig->sig_class == 0x20 || sig->sig_class == 0x28
              || sig->sig_class == 0x30)
            sigstr = "rev";
          else if ((sig->sig_class & ~3) == 0x10)
            sigstr = "sig";
          else if (sig->sig_class == 0x18)
            sigstr = "sig";
          else if (sig->sig_class == 0x1F)
            sigstr = "sig";
          else
            {
              es_fprintf (es_stdout, "sig                             "
                      "[unexpected signature class 0x%02x]\n",
                      sig->sig_class);
              continue;
            }

          es_fputs (sigstr, es_stdout);
          es_fprintf (es_stdout, "%c%c %c%c%c%c%c%c %s %s",
                  sigrc, (sig->sig_class - 0x10 > 0 &&
                          sig->sig_class - 0x10 <
                          4) ? '0' + sig->sig_class - 0x10 : ' ',
                  sig->flags.exportable ? ' ' : 'L',
                  sig->flags.revocable ? ' ' : 'R',
                  sig->flags.policy_url ? 'P' : ' ',
                  sig->flags.notation ? 'N' : ' ',
                  sig->flags.expired ? 'X' : ' ',
                  (sig->trust_depth > 9) ? 'T' : (sig->trust_depth >
                                                  0) ? '0' +
                  sig->trust_depth : ' ', keystr (sig->keyid),
                  datestr_from_sig (sig));
          if (opt.list_options & LIST_SHOW_SIG_EXPIRE)
            es_fprintf (es_stdout, " %s", expirestr_from_sig (sig));
          es_fprintf (es_stdout, "  ");
          if (sigrc == '%')
            es_fprintf (es_stdout, "[%s] ", gpg_strerror (rc));
          else if (sigrc == '?')
            ;
          else if (!opt.fast_list_mode)
            {
              size_t n;
              char *p = get_user_id (sig->keyid, &n);
              print_utf8_buffer (es_stdout, p, n);
              xfree (p);
            }
          es_putc ('\n', es_stdout);

          if (sig->flags.policy_url
              && (opt.list_options & LIST_SHOW_POLICY_URLS))
            show_policy_url (sig, 3, 0);

          if (sig->flags.notation && (opt.list_options & LIST_SHOW_NOTATIONS))
            show_notation (sig, 3, 0,
                           ((opt.
                             list_options & LIST_SHOW_STD_NOTATIONS) ? 1 : 0)
                           +
                           ((opt.
                             list_options & LIST_SHOW_USER_NOTATIONS) ? 2 :
                            0));

          if (sig->flags.pref_ks
              && (opt.list_options & LIST_SHOW_KEYSERVER_URLS))
            show_keyserver_url (sig, 3, 0);

          /* fixme: check or list other sigs here */
        }
    }
  es_putc ('\n', es_stdout);
  xfree (serialno);
  xfree (hexgrip);
}

void
print_revokers (estream_t fp, PKT_public_key * pk)
{
  /* print the revoker record */
  if (!pk->revkey && pk->numrevkeys)
    BUG ();
  else
    {
      int i, j;

      for (i = 0; i < pk->numrevkeys; i++)
        {
          byte *p;

          es_fprintf (fp, "rvk:::%d::::::", pk->revkey[i].algid);
          p = pk->revkey[i].fpr;
          for (j = 0; j < 20; j++, p++)
            es_fprintf (fp, "%02X", *p);
          es_fprintf (fp, ":%02x%s:\n",
                      pk->revkey[i].class,
                      (pk->revkey[i].class & 0x40) ? "s" : "");
        }
    }
}


/* List a key in colon mode.  If SECRET is true this is a secret key
   record (i.e. requested via --list-secret-key).  If HAS_SECRET a
   secret key is available even if SECRET is not set.  */
static void
list_keyblock_colon (ctrl_t ctrl, kbnode_t keyblock,
                     int secret, int has_secret)
{
  int rc;
  KBNODE kbctx;
  KBNODE node;
  PKT_public_key *pk;
  u32 keyid[2];
  int trustletter = 0;
  int trustletter_print;
  int ownertrust_print;
  int ulti_hack = 0;
  int i;
  char *hexgrip_buffer = NULL;
  const char *hexgrip = NULL;
  char *serialno = NULL;
  int stubkey;

  /* Get the keyid from the keyblock.  */
  node = find_kbnode (keyblock, PKT_PUBLIC_KEY);
  if (!node)
    {
      log_error ("Oops; key lost!\n");
      dump_kbnode (keyblock);
      return;
    }

  pk = node->pkt->pkt.public_key;
  if (secret || has_secret || opt.with_keygrip || opt.with_key_data)
    {
      rc = hexkeygrip_from_pk (pk, &hexgrip_buffer);
      if (rc)
        log_error ("error computing a keygrip: %s\n", gpg_strerror (rc));
      /* In the error case we print an empty string so that we have a
       * "grp" record for each and subkey - even if it is empty.  This
       * may help to prevent sync problems.  */
      hexgrip = hexgrip_buffer? hexgrip_buffer : "";
    }
  stubkey = 0;
  if ((secret || has_secret)
      && agent_get_keyinfo (NULL, hexgrip, &serialno, NULL))
    stubkey = 1;  /* Key not found.  */

  keyid_from_pk (pk, keyid);
  if (!pk->flags.valid)
    trustletter_print = 'i';
  else if (pk->flags.revoked)
    trustletter_print = 'r';
  else if (pk->has_expired)
    trustletter_print = 'e';
  else if (opt.fast_list_mode || opt.no_expensive_trust_checks)
    trustletter_print = 0;
  else
    {
      trustletter = get_validity_info (ctrl, keyblock, pk, NULL);
      if (trustletter == 'u')
        ulti_hack = 1;
      trustletter_print = trustletter;
    }

  if (!opt.fast_list_mode && !opt.no_expensive_trust_checks)
    ownertrust_print = get_ownertrust_info (pk);
  else
    ownertrust_print = 0;

  es_fputs (secret? "sec:":"pub:", es_stdout);
  if (trustletter_print)
    es_putc (trustletter_print, es_stdout);
  es_fprintf (es_stdout, ":%u:%d:%08lX%08lX:%s:%s::",
          nbits_from_pk (pk),
          pk->pubkey_algo,
          (ulong) keyid[0], (ulong) keyid[1],
          colon_datestr_from_pk (pk), colon_strtime (pk->expiredate));

  if (ownertrust_print)
    es_putc (ownertrust_print, es_stdout);
  es_putc (':', es_stdout);

  es_putc (':', es_stdout);
  es_putc (':', es_stdout);
  print_capabilities (pk, keyblock);
  es_putc (':', es_stdout);             /* End of field 13. */
  es_putc (':', es_stdout);             /* End of field 14. */
  if (secret || has_secret)
    {
      if (stubkey)
        es_putc ('#', es_stdout);
      else if (serialno)
        es_fputs (serialno, es_stdout);
      else if (has_secret)
        es_putc ('+', es_stdout);
    }
  es_putc (':', es_stdout);             /* End of field 15. */
  es_putc (':', es_stdout);             /* End of field 16. */
  if (pk->pubkey_algo == PUBKEY_ALGO_ECDSA
      || pk->pubkey_algo == PUBKEY_ALGO_EDDSA
      || pk->pubkey_algo == PUBKEY_ALGO_ECDH)
    {
      char *curve = openpgp_oid_to_str (pk->pkey[0]);
      const char *name = openpgp_oid_to_curve (curve, 0);
      if (!name)
        name = curve;
      es_fputs (name, es_stdout);
      xfree (curve);
    }
  es_putc (':', es_stdout);             /* End of field 17. */
  es_putc (':', es_stdout);             /* End of field 18. */
  es_putc ('\n', es_stdout);

  print_revokers (es_stdout, pk);
  print_fingerprint (NULL, pk, 0);
  if (hexgrip)
    es_fprintf (es_stdout, "grp:::::::::%s:\n", hexgrip);
  if (opt.with_key_data)
    print_key_data (pk);

  for (kbctx = NULL; (node = walk_kbnode (keyblock, &kbctx, 0));)
    {
      if (node->pkt->pkttype == PKT_USER_ID)
        {
          PKT_user_id *uid = node->pkt->pkt.user_id;
          int uid_validity;

          if (attrib_fp && uid->attrib_data != NULL)
            dump_attribs (uid, pk);

          if (uid->is_revoked)
            uid_validity = 'r';
          else if (uid->is_expired)
            uid_validity = 'e';
          else if (opt.no_expensive_trust_checks)
            uid_validity = 0;
          else if (ulti_hack)
            uid_validity = 'u';
          else
            uid_validity = get_validity_info (ctrl, keyblock, pk, uid);

          es_fputs (uid->attrib_data? "uat:":"uid:", es_stdout);
          if (uid_validity)
            es_putc (uid_validity, es_stdout);
          es_fputs ("::::", es_stdout);

          es_fprintf (es_stdout, "%s:", colon_strtime (uid->created));
          es_fprintf (es_stdout, "%s:", colon_strtime (uid->expiredate));

          namehash_from_uid (uid);

          for (i = 0; i < 20; i++)
            es_fprintf (es_stdout, "%02X", uid->namehash[i]);

          es_fprintf (es_stdout, "::");

          if (uid->attrib_data)
            es_fprintf (es_stdout, "%u %lu", uid->numattribs, uid->attrib_len);
          else
            es_write_sanitized (es_stdout, uid->name, uid->len, ":", NULL);
          es_putc (':', es_stdout);
          es_putc ('\n', es_stdout);
#ifdef USE_TOFU
          if (!uid->attrib_data && opt.with_tofu_info
              && (opt.trust_model == TM_TOFU || opt.trust_model == TM_TOFU_PGP))
            {
              /* Print a "tfs" record.  */
              tofu_write_tfs_record (ctrl, es_stdout, pk, uid->name);
            }
#endif /*USE_TOFU*/
        }
      else if (node->pkt->pkttype == PKT_PUBLIC_SUBKEY)
        {
          u32 keyid2[2];
          PKT_public_key *pk2;
          int need_hexgrip = !!hexgrip;

          pk2 = node->pkt->pkt.public_key;
          xfree (hexgrip_buffer); hexgrip_buffer = NULL; hexgrip = NULL;
          xfree (serialno); serialno = NULL;
          if (need_hexgrip
              || secret || has_secret || opt.with_keygrip || opt.with_key_data)
            {
              rc = hexkeygrip_from_pk (pk2, &hexgrip_buffer);
              if (rc)
                log_error ("error computing a keygrip: %s\n",
                           gpg_strerror (rc));
              hexgrip = hexgrip_buffer? hexgrip_buffer : "";
            }
          stubkey = 0;
          if ((secret||has_secret)
              && agent_get_keyinfo (NULL, hexgrip, &serialno, NULL))
            stubkey = 1;  /* Key not found.  */

          keyid_from_pk (pk2, keyid2);
          es_fputs (secret? "ssb:":"sub:", es_stdout);
          if (!pk2->flags.valid)
            es_putc ('i', es_stdout);
          else if (pk2->flags.revoked)
            es_putc ('r', es_stdout);
          else if (pk2->has_expired)
            es_putc ('e', es_stdout);
          else if (opt.fast_list_mode || opt.no_expensive_trust_checks)
            ;
          else
            {
              /* TRUSTLETTER should always be defined here. */
              if (trustletter)
                es_fprintf (es_stdout, "%c", trustletter);
            }
          es_fprintf (es_stdout, ":%u:%d:%08lX%08lX:%s:%s:::::",
                  nbits_from_pk (pk2),
                  pk2->pubkey_algo,
                  (ulong) keyid2[0], (ulong) keyid2[1],
                  colon_datestr_from_pk (pk2), colon_strtime (pk2->expiredate)
                  /* fixme: add LID and ownertrust here */
            );
          print_capabilities (pk2, NULL);
          es_putc (':', es_stdout);     /* End of field 13. */
          es_putc (':', es_stdout);     /* End of field 14. */
          if (secret || has_secret)
            {
              if (stubkey)
                es_putc ('#', es_stdout);
              else if (serialno)
                es_fputs (serialno, es_stdout);
              else if (has_secret)
                es_putc ('+', es_stdout);
            }
          es_putc (':', es_stdout);     /* End of field 15. */
          es_putc (':', es_stdout);     /* End of field 16. */
          if (pk2->pubkey_algo == PUBKEY_ALGO_ECDSA
              || pk2->pubkey_algo == PUBKEY_ALGO_EDDSA
              || pk2->pubkey_algo == PUBKEY_ALGO_ECDH)
            {
              char *curve = openpgp_oid_to_str (pk2->pkey[0]);
              const char *name = openpgp_oid_to_curve (curve, 0);
              if (!name)
                name = curve;
              es_fputs (name, es_stdout);
              xfree (curve);
            }
          es_putc (':', es_stdout);     /* End of field 17. */
          es_putc ('\n', es_stdout);
          print_fingerprint (NULL, pk2, 0);
          if (hexgrip)
            es_fprintf (es_stdout, "grp:::::::::%s:\n", hexgrip);
          if (opt.with_key_data)
            print_key_data (pk2);
        }
      else if (opt.list_sigs && node->pkt->pkttype == PKT_SIGNATURE)
        {
          PKT_signature *sig = node->pkt->pkt.signature;
          int sigrc, fprokay = 0;
          char *sigstr;
          size_t fplen;
          byte fparray[MAX_FINGERPRINT_LEN];
          char *siguid;
          size_t siguidlen;

          if (sig->sig_class == 0x20 || sig->sig_class == 0x28
              || sig->sig_class == 0x30)
            sigstr = "rev";
          else if ((sig->sig_class & ~3) == 0x10)
            sigstr = "sig";
          else if (sig->sig_class == 0x18)
            sigstr = "sig";
          else if (sig->sig_class == 0x1F)
            sigstr = "sig";
          else
            {
              es_fprintf (es_stdout, "sig::::::::::%02x%c:\n",
                      sig->sig_class, sig->flags.exportable ? 'x' : 'l');
              continue;
            }

          if (opt.check_sigs)
            {
              PKT_public_key *signer_pk = NULL;

              es_fflush (es_stdout);
              if (opt.no_sig_cache)
                signer_pk = xmalloc_clear (sizeof (PKT_public_key));

              rc = check_key_signature2 (keyblock, node, NULL, signer_pk,
                                         NULL, NULL, NULL);
              switch (gpg_err_code (rc))
                {
                case 0:
                  sigrc = '!';
                  break;
                case GPG_ERR_BAD_SIGNATURE:
                  sigrc = '-';
                  break;
                case GPG_ERR_NO_PUBKEY:
                case GPG_ERR_UNUSABLE_PUBKEY:
                  sigrc = '?';
                  break;
                default:
                  sigrc = '%';
                  break;
                }

              if (opt.no_sig_cache)
                {
                  if (!rc)
                    {
                      fingerprint_from_pk (signer_pk, fparray, &fplen);
                      fprokay = 1;
                    }
                  free_public_key (signer_pk);
                }
            }
          else
            {
              rc = 0;
              sigrc = ' ';
            }

          if (sigrc != '%' && sigrc != '?' && !opt.fast_list_mode)
            siguid = get_user_id (sig->keyid, &siguidlen);
          else
            {
              siguid = NULL;
              siguidlen = 0;
            }


          es_fputs (sigstr, es_stdout);
          es_putc (':', es_stdout);
          if (sigrc != ' ')
            es_putc (sigrc, es_stdout);
          es_fprintf (es_stdout, "::%d:%08lX%08lX:%s:%s:", sig->pubkey_algo,
                  (ulong) sig->keyid[0], (ulong) sig->keyid[1],
                  colon_datestr_from_sig (sig),
                  colon_expirestr_from_sig (sig));

          if (sig->trust_depth || sig->trust_value)
            es_fprintf (es_stdout, "%d %d", sig->trust_depth, sig->trust_value);
          es_fprintf (es_stdout, ":");

          if (sig->trust_regexp)
            es_write_sanitized (es_stdout, sig->trust_regexp,
                                strlen (sig->trust_regexp), ":", NULL);
          es_fprintf (es_stdout, ":");

          if (sigrc == '%')
            es_fprintf (es_stdout, "[%s] ", gpg_strerror (rc));
          else if (siguid)
            es_write_sanitized (es_stdout, siguid, siguidlen, ":", NULL);

          es_fprintf (es_stdout, ":%02x%c::", sig->sig_class,
                      sig->flags.exportable ? 'x' : 'l');

          if (opt.no_sig_cache && opt.check_sigs && fprokay)
            {
              for (i = 0; i < fplen; i++)
                es_fprintf (es_stdout, "%02X", fparray[i]);
            }

          es_fprintf (es_stdout, ":::%d:\n", sig->digest_algo);

          if (opt.show_subpackets)
            print_subpackets_colon (sig);

          /* fixme: check or list other sigs here */
          xfree (siguid);
        }
    }

  xfree (hexgrip_buffer);
  xfree (serialno);
}

/*
 * Reorder the keyblock so that the primary user ID (and not attribute
 * packet) comes first.  Fixme: Replace this by a generic sort
 * function.  */
static void
do_reorder_keyblock (KBNODE keyblock, int attr)
{
  KBNODE primary = NULL, primary0 = NULL, primary2 = NULL;
  KBNODE last, node;

  for (node = keyblock; node; primary0 = node, node = node->next)
    {
      if (node->pkt->pkttype == PKT_USER_ID &&
          ((attr && node->pkt->pkt.user_id->attrib_data) ||
           (!attr && !node->pkt->pkt.user_id->attrib_data)) &&
          node->pkt->pkt.user_id->is_primary)
        {
          primary = primary2 = node;
          for (node = node->next; node; primary2 = node, node = node->next)
            {
              if (node->pkt->pkttype == PKT_USER_ID
                  || node->pkt->pkttype == PKT_PUBLIC_SUBKEY
                  || node->pkt->pkttype == PKT_SECRET_SUBKEY)
                {
                  break;
                }
            }
          break;
        }
    }
  if (!primary)
    return; /* No primary key flag found (should not happen).  */

  for (last = NULL, node = keyblock; node; last = node, node = node->next)
    {
      if (node->pkt->pkttype == PKT_USER_ID)
        break;
    }
  log_assert (node);
  log_assert (last);     /* The user ID is never the first packet.  */
  log_assert (primary0); /* Ditto (this is the node before primary).  */
  if (node == primary)
    return; /* Already the first one.  */

  last->next = primary;
  primary0->next = primary2->next;
  primary2->next = node;
}

void
reorder_keyblock (KBNODE keyblock)
{
  do_reorder_keyblock (keyblock, 1);
  do_reorder_keyblock (keyblock, 0);
}

static void
list_keyblock (ctrl_t ctrl,
               KBNODE keyblock, int secret, int has_secret, int fpr,
               struct keylist_context *listctx)
{
  reorder_keyblock (keyblock);

  if (opt.with_colons)
    list_keyblock_colon (ctrl, keyblock, secret, has_secret);
  else
    list_keyblock_print (ctrl, keyblock, secret, fpr, listctx);

  if (secret)
    es_fflush (es_stdout);
}


/* Public function used by keygen to list a keyblock.  If NO_VALIDITY
 * is set the validity of a key is never shown.  */
void
list_keyblock_direct (ctrl_t ctrl,
                      kbnode_t keyblock, int secret, int has_secret, int fpr,
                      int no_validity)
{
  struct keylist_context listctx;

  memset (&listctx, 0, sizeof (listctx));
  listctx.no_validity = !!no_validity;
  list_keyblock (ctrl, keyblock, secret, has_secret, fpr, &listctx);
  keylist_context_release (&listctx);
}


/* Print an hex digit in ICAO spelling.  */
static void
print_icao_hexdigit (estream_t fp, int c)
{
  static const char *list[16] = {
    "Zero", "One", "Two", "Three", "Four", "Five", "Six", "Seven",
    "Eight", "Niner", "Alfa", "Bravo", "Charlie", "Delta", "Echo", "Foxtrot"
  };

  tty_fprintf (fp, "%s", list[c&15]);
}


/*
 * Function to print the finperprint.
 * mode 0: as used in key listings, opt.with_colons is honored
 *      1: print using log_info ()
 *      2: direct use of tty
 *      3: direct use of tty but only primary key.
 *      4: direct use of tty but only subkey.
 *     10: Same as 0 but with_colons etc is ignored.
 *     20: Same as 0 but using a compact format.
 *
 * Modes 1 and 2 will try and print both subkey and primary key
 * fingerprints.  A MODE with bit 7 set is used internally.  If
 * OVERRIDE_FP is not NULL that stream will be used in  0 instead
 * of es_stdout or instead of the TTY in modes 2 and 3.
 */
void
print_fingerprint (estream_t override_fp, PKT_public_key *pk, int mode)
{
  char hexfpr[2*MAX_FINGERPRINT_LEN+1];
  char *p;
  size_t i;
  estream_t fp;
  const char *text;
  int primary = 0;
  int with_colons = opt.with_colons;
  int with_icao   = opt.with_icao_spelling;
  int compact = 0;

  if (mode == 10)
    {
      mode = 0;
      with_colons = 0;
      with_icao = 0;
    }
  else if (mode == 20)
    {
      mode = 0;
      with_colons = 0;
      compact = 1;
    }

  if (!opt.fingerprint && !opt.with_fingerprint
      && opt.with_subkey_fingerprint)
    compact = 1;

  if (pk->main_keyid[0] == pk->keyid[0]
      && pk->main_keyid[1] == pk->keyid[1])
    primary = 1;

  /* Just to be safe */
  if ((mode & 0x80) && !primary)
    {
      log_error ("primary key is not really primary!\n");
      return;
    }

  mode &= ~0x80;

  if (!primary && (mode == 1 || mode == 2))
    {
      PKT_public_key *primary_pk = xmalloc_clear (sizeof (*primary_pk));
      get_pubkey (primary_pk, pk->main_keyid);
      print_fingerprint (override_fp, primary_pk, (mode | 0x80));
      free_public_key (primary_pk);
    }

  if (mode == 1)
    {
      fp = log_get_stream ();
      if (primary)
        text = _("Primary key fingerprint:");
      else
        text = _("     Subkey fingerprint:");
    }
  else if (mode == 2)
    {
      fp = override_fp; /* Use tty or given stream.  */
      if (primary)
        /* TRANSLATORS: this should fit into 24 bytes so that the
         * fingerprint data is properly aligned with the user ID */
        text = _(" Primary key fingerprint:");
      else
        text = _("      Subkey fingerprint:");
    }
  else if (mode == 3)
    {
      fp = override_fp; /* Use tty or given stream.  */
      text = _("      Key fingerprint =");
    }
  else if (mode == 4)
    {
      fp = override_fp; /* Use tty or given stream.  */
      text = _("      Subkey fingerprint:");
    }
  else
    {
      fp = override_fp? override_fp : es_stdout;
      if (opt.keyid_format == KF_NONE)
        {
          text = "     ";  /* To indent ICAO spelling.  */
          compact = 1;
        }
      else
        text = _("      Key fingerprint =");
    }

  hexfingerprint (pk, hexfpr, sizeof hexfpr);
  if (with_colons && !mode)
    {
      es_fprintf (fp, "fpr:::::::::%s:", hexfpr);
    }
  else if (compact && !opt.fingerprint && !opt.with_fingerprint)
    {
      tty_fprintf (fp, "%*s%s", 6, "", hexfpr);
    }
  else
    {
      char fmtfpr[MAX_FORMATTED_FINGERPRINT_LEN + 1];
      format_hexfingerprint (hexfpr, fmtfpr, sizeof fmtfpr);
      if (compact)
        tty_fprintf (fp, "%*s%s", 6, "", fmtfpr);
      else
        tty_fprintf (fp, "%s %s", text, fmtfpr);
    }
  tty_fprintf (fp, "\n");
  if (!with_colons && with_icao)
    {
      ;
      tty_fprintf (fp, "%*s\"", (int)strlen(text)+1, "");
      for (i = 0, p = hexfpr; *p; i++, p++)
        {
          if (!i)
            ;
          else if (!(i%8))
            tty_fprintf (fp, "\n%*s ", (int)strlen(text)+1, "");
          else if (!(i%4))
            tty_fprintf (fp, "  ");
          else
            tty_fprintf (fp, " ");
          print_icao_hexdigit (fp, xtoi_1 (p));
        }
      tty_fprintf (fp, "\"\n");
    }
}

/* Print the serial number of an OpenPGP card if available.  */
static void
print_card_serialno (const char *serialno)
{
  if (!serialno)
    return;
  if (opt.with_colons)
    return; /* Handled elsewhere. */

  es_fputs (_("      Card serial no. ="), es_stdout);
  es_putc (' ', es_stdout);
  if (strlen (serialno) == 32 && !strncmp (serialno, "D27600012401", 12))
    {
      /* This is an OpenPGP card.  Print the relevant part.  */
      /* Example: D2760001240101010001000003470000 */
      /*                          xxxxyyyyyyyy     */
      es_fprintf (es_stdout, "%.*s %.*s", 4, serialno+16, 8, serialno+20);
    }
 else
   es_fputs (serialno, es_stdout);
  es_putc ('\n', es_stdout);
}


/* Print a public or secret (sub)key line.  Example:
 *
 * pub   dsa2048 2007-12-31 [SC] [expires: 2018-12-31]
 *       80615870F5BAD690333686D0F2AD85AC1E42B367
 *
 * Some global options may result in a different output format.  If
 * SECRET is set, "sec" or "ssb" is used instead of "pub" or "sub" and
 * depending on the value a flag character is shown:
 *
 *    1 := ' ' Regular secret key
 *    2 := '#' Stub secret key
 *    3 := '>' Secret key is on a token.
 */
void
print_key_line (estream_t fp, PKT_public_key *pk, int secret)
{
  char pkstrbuf[PUBKEY_STRING_SIZE];

  tty_fprintf (fp, "%s%c  %s",
               pk->flags.primary? (secret? "sec":"pub")
               /**/             : (secret? "ssb":"sub"),
               secret == 2? '#' : secret == 3? '>' : ' ',
               pubkey_string (pk, pkstrbuf, sizeof pkstrbuf));
  if (opt.keyid_format != KF_NONE)
    tty_fprintf (fp, "/%s", keystr_from_pk (pk));
  tty_fprintf (fp, " %s", datestr_from_pk (pk));

  if ((opt.list_options & LIST_SHOW_USAGE))
    {
      tty_fprintf (fp, " [%s]", usagestr_from_pk (pk, 0));
    }
  if (pk->flags.revoked)
    {
      tty_fprintf (fp, " [");
      tty_fprintf (fp, _("revoked: %s"), revokestr_from_pk (pk));
      tty_fprintf (fp, "]");
    }
  else if (pk->has_expired)
    {
      tty_fprintf (fp, " [");
      tty_fprintf (fp, _("expired: %s"), expirestr_from_pk (pk));
      tty_fprintf (fp, "]");
    }
  else if (pk->expiredate)
    {
      tty_fprintf (fp, " [");
      tty_fprintf (fp, _("expires: %s"), expirestr_from_pk (pk));
      tty_fprintf (fp, "]");
    }

#if 0
  /* I need to think about this some more.  It's easy enough to
     include, but it looks sort of confusing in the listing... */
  if (opt.list_options & LIST_SHOW_VALIDITY)
    {
      int validity = get_validity (ctrl, pk, NULL, NULL, 0);
      tty_fprintf (fp, " [%s]", trust_value_to_string (validity));
    }
#endif

  if (pk->pubkey_algo >= 100)
    tty_fprintf (fp, " [experimental algorithm %d]", pk->pubkey_algo);

  tty_fprintf (fp, "\n");

  /* if the user hasn't explicitly asked for human-readable
     fingerprints, show compact fpr of primary key: */
  if (pk->flags.primary &&
      !opt.fingerprint && !opt.with_fingerprint)
    print_fingerprint (fp, pk, 20);
}


void
set_attrib_fd (int fd)
{
  static int last_fd = -1;

  if (fd != -1 && last_fd == fd)
    return;

  /* Fixme: Do we need to check for the log stream here?  */
  if (attrib_fp && attrib_fp != log_get_stream ())
    es_fclose (attrib_fp);
  attrib_fp = NULL;
  if (fd == -1)
    return;

  if (! gnupg_fd_valid (fd))
    log_fatal ("attribute-fd is invalid: %s\n", strerror (errno));

#ifdef HAVE_DOSISH_SYSTEM
  setmode (fd, O_BINARY);
#endif
  if (fd == 1)
    attrib_fp = es_stdout;
  else if (fd == 2)
    attrib_fp = es_stderr;
  else
    attrib_fp = es_fdopen (fd, "wb");
  if (!attrib_fp)
    {
      log_fatal ("can't open fd %d for attribute output: %s\n",
                 fd, strerror (errno));
    }

  last_fd = fd;
}