/* keylist.c
 * Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003
 *               2004 Free Software Foundation, Inc.
 *
 * This file is part of GnuPG.
 *
 * GnuPG is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * GnuPG is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
 */

#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <assert.h>

#include "options.h"
#include "packet.h"
#include "errors.h"
#include "keydb.h"
#include "memory.h"
#include "photoid.h"
#include "util.h"
#include "ttyio.h"
#include "trustdb.h"
#include "main.h"
#include "i18n.h"
#include "status.h"

static void list_all(int);
static void list_one( STRLIST names, int secret);

struct sig_stats
{
  int inv_sigs;
  int no_key;
  int oth_err;
};

static FILE *attrib_fp=NULL;

/****************
 * List the keys
 * If list is NULL, all available keys are listed
 */
void
public_key_list( STRLIST list )
{
  if(opt.with_colons)
    {
      byte trust_model,marginals,completes,cert_depth;
      ulong created,nextcheck;

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

      printf("tru:");

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

      printf(":%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)
	printf(":%d:%d:%d",marginals,completes,cert_depth);

      printf("\n");
    }

  if( !list )
    list_all(0);
  else
    list_one( list, 0 );
}

void
secret_key_list( STRLIST list )
{
    if( !list )
	list_all(1);
    else  /* List by user id */
	list_one( list, 1 );
}

void
print_seckey_info (PKT_secret_key *sk)
{
  u32 keyid[2];
  char *p;

  keyid_from_sk (sk, keyid);
  p=get_user_id_printable(keyid);

  tty_printf ("\nsec  %4u%c/%s %s   %s\n",
	      nbits_from_sk (sk),
	      pubkey_letter (sk->pubkey_algo),
	      keystr(keyid), datestr_from_sk (sk), p);
    
  m_free (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 (FILE *fp, PKT_public_key *pk)
{
  u32 keyid[2];
  char *p;

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

  if (fp)
    fprintf (fp, "pub  %4u%c/%s %s   %s\n",
             nbits_from_pk (pk),
             pubkey_letter (pk->pubkey_algo),
             keystr(keyid), datestr_from_pk (pk), p);
  else
    tty_printf ("\npub  %4u%c/%s %s   %s\n",
                nbits_from_pk (pk), pubkey_letter (pk->pubkey_algo),
                keystr(keyid), datestr_from_pk (pk), p);

  m_free (p);
}

/*
  mode=0 for stdout.
  mode=1 for log_info + status messages
  mode=2 for status messages only
*/

void
show_policy_url(PKT_signature *sig,int indent,int mode)
{
  const byte *p;
  size_t len;
  int seq=0,crit;
  FILE *fp=mode?log_stream():stdout;

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

	  for(i=0;i<indent;i++)
	    putchar(' ');

	  if(crit)
	    str=_("Critical signature policy: ");
	  else
	    str=_("Signature policy: ");
	  if(mode)
	    log_info("%s",str);
	  else
	    printf("%s",str);
	  print_utf8_string(fp,p,len);
	  fprintf(fp,"\n");
	}

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

/*
  mode=0 for stdout.
  mode=1 for log_info + status messages
  mode=2 for status messages only
*/
/* TODO: use this */
void
show_keyserver_url(PKT_signature *sig,int indent,int mode)
{
  const byte *p;
  size_t len;
  int seq=0,crit;
  FILE *fp=mode?log_stream():stdout;

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

	  for(i=0;i<indent;i++)
	    putchar(' ');

	  if(crit)
	    str=_("Critical preferred keyserver: ");
	  else
	    str=_("Preferred keyserver: ");
	  if(mode)
	    log_info("%s",str);
	  else
	    printf("%s",str);
	  print_utf8_string(fp,p,len);
	  fprintf(fp,"\n");
	}

      /* TODO: put in a status-fd tag for preferred keyservers */
    }
}

/*
  mode=0 for stdout.
  mode=1 for log_info + status messages
  mode=2 for status messages only
*/

void
show_notation(PKT_signature *sig,int indent,int mode)
{
  const byte *p;
  size_t len;
  int seq=0,crit;
  FILE *fp=mode?log_stream():stdout;

  /* There may be multiple notations in the same sig. */

  while((p=enum_sig_subpkt(sig->hashed,SIGSUBPKT_NOTATION,&len,&seq,&crit)))
    if(len>=8)
      {
	int n1,n2;

	n1=(p[4]<<8)|p[5];
	n2=(p[6]<<8)|p[7];

	if(8+n1+n2!=len)
	  {
	    log_info(_("WARNING: invalid notation data found\n"));
	    return;
	  }

	if(mode!=2)
	  {
	    int i;
	    char *str;

	    for(i=0;i<indent;i++)
	      putchar(' ');

	    /* This is UTF8 */
	    if(crit)
	      str=_("Critical signature notation: ");
	    else
	      str=_("Signature notation: ");
	    if(mode)
	      log_info("%s",str);
	    else
	      printf("%s",str);
	    print_utf8_string(fp,p+8,n1);
	    fprintf(fp,"=");

	    if(*p&0x80)
	      print_utf8_string(fp,p+8+n1,n2);
	    else
	      fprintf(fp,"[ %s ]",_("not human readable"));

	    fprintf(fp,"\n");
	  }

	if(mode)
	  {
	    write_status_buffer ( STATUS_NOTATION_NAME, p+8   , n1, 0 );
	    write_status_buffer ( STATUS_NOTATION_DATA, p+8+n1, n2, 50 );
	  }
      }
  else
    log_info(_("WARNING: invalid notation data found\n"));
}

static void
print_signature_stats(struct sig_stats *s)
{
  if( s->inv_sigs == 1 )
    tty_printf(_("1 bad signature\n") );
  else if( s->inv_sigs )
    tty_printf(_("%d bad signatures\n"), s->inv_sigs );
  if( s->no_key == 1 )
    tty_printf(_("1 signature not checked due to a missing key\n") );
  else if( s->no_key )
    tty_printf(_("%d signatures not checked due to missing keys\n"),s->no_key);
  if( s->oth_err == 1 )
    tty_printf(_("1 signature not checked due to an error\n") );
  else if( s->oth_err )
    tty_printf(_("%d signatures not checked due to errors\n"), s->oth_err );
}

static void
list_all( int secret )
{
    KEYDB_HANDLE hd;
    KBNODE keyblock = NULL;
    int rc=0;
    const char *lastresname, *resname;
    struct sig_stats stats;

    memset(&stats,0,sizeof(stats));

    hd = keydb_new (secret);
    if (!hd)
        rc = G10ERR_GENERAL;
    else
        rc = keydb_search_first (hd);
    if( rc ) {
	if( rc != -1 )
	    log_error("keydb_search_first failed: %s\n", g10_errstr(rc) );
	goto leave;
    }

    lastresname = NULL;
    do {
        rc = keydb_get_keyblock (hd, &keyblock);
        if (rc) {
            log_error ("keydb_get_keyblock failed: %s\n", g10_errstr(rc));
            goto leave;
        }
	if(!opt.with_colons)
	  {
	    resname = keydb_get_resource_name (hd);
	    if (lastresname != resname )
	      {
		int i;

		printf("%s\n", resname );
		for(i=strlen(resname); i; i-- )
		  putchar('-');
		putchar('\n');
		lastresname = resname;
	      }
	  }
        merge_keys_and_selfsig( keyblock );
	list_keyblock( keyblock, secret, opt.fingerprint,
		       opt.check_sigs?&stats:NULL);
	release_kbnode( keyblock ); 
        keyblock = NULL;
    } while (!(rc = keydb_search_next (hd)));
    if( rc && rc != -1 )
	log_error ("keydb_search_next failed: %s\n", g10_errstr(rc));

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

  leave:
    release_kbnode (keyblock);
    keydb_release (hd);
}


static void
list_one( STRLIST names, int secret )
{
    int rc = 0;
    KBNODE keyblock = NULL;
    GETKEY_CTX ctx;
    const char *resname;
    char *keyring_str = _("Keyring");
    int i;
    struct sig_stats stats;

    memset(&stats,0,sizeof(stats));

    /* 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. */
    if( secret ) {
	rc = get_seckey_bynames( &ctx, NULL, names, &keyblock );
	if( rc ) {
	    log_error("error reading key: %s\n",  g10_errstr(rc) );
	    get_seckey_end( ctx );
	    return;
	}
	do {
	    if ((opt.list_options&LIST_SHOW_KEYRING) && !opt.with_colons) {
		resname = keydb_get_resource_name (get_ctx_handle(ctx));
		printf("%s: %s\n", keyring_str, resname);
		for(i = strlen(resname) + strlen(keyring_str) + 2; i; i-- )
		    putchar('-');
		putchar('\n');
	    }
	    list_keyblock( keyblock, 1, opt.fingerprint, NULL );
	    release_kbnode( keyblock );
	} while( !get_seckey_next( ctx, NULL, &keyblock ) );
	get_seckey_end( ctx );
    }
    else {
	rc = get_pubkey_bynames( &ctx, NULL, names, &keyblock );
	if( rc ) {
	    log_error("error reading key: %s\n", g10_errstr(rc) );
	    get_pubkey_end( ctx );
	    return;
	}
	do {
	  if ((opt.list_options&LIST_SHOW_KEYRING) && !opt.with_colons) {
		resname = keydb_get_resource_name (get_ctx_handle(ctx));
		printf("%s: %s\n", keyring_str, resname);
		for(i = strlen(resname) + strlen(keyring_str) + 2; i; i-- )
		    putchar('-');
		putchar('\n');
	    }
	    list_keyblock( keyblock, 0, opt.fingerprint,
			   opt.check_sigs?&stats:NULL );
	    release_kbnode( keyblock );
	} while( !get_pubkey_next( ctx, NULL, &keyblock ) );
	get_pubkey_end( ctx );
    }

    if(opt.check_sigs && !opt.with_colons)
      print_signature_stats(&stats);
}

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++ ) {
	printf("pkd:%d:%u:", i, mpi_get_nbits( pk->pkey[i] ) );
	mpi_print(stdout, pk->pkey[i], 1 );
	putchar(':');
	putchar('\n');
    }
}

static void
print_capabilities (PKT_public_key *pk, PKT_secret_key *sk, KBNODE keyblock)
{
  if(pk || (sk && sk->protect.s2k.mode!=1001))
    {
      unsigned int use = pk? pk->pubkey_usage : sk->pubkey_usage;
    
      if ( use & PUBKEY_USAGE_ENC )
        putchar ('e');

      if ( use & PUBKEY_USAGE_SIG )
	{
	  putchar ('s');
	  if( pk? pk->is_primary : sk->is_primary )
	    putchar ('c');
	}

      if ( (use & PUBKEY_USAGE_AUTH) )
        putchar ('a');
    }

    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->is_primary)
		  disabled=pk_is_disabled(pk);

                if ( pk->is_valid && !pk->is_revoked && !pk->has_expired ) {
                    if ( pk->pubkey_usage & PUBKEY_USAGE_ENC )
                        enc = 1;
                    if ( pk->pubkey_usage & PUBKEY_USAGE_SIG )
		      {
			sign = 1;
			if(pk->is_primary)
			  cert = 1;
		      }
                    if ( (pk->pubkey_usage & PUBKEY_USAGE_AUTH) )
                      auth = 1;
                }
            }
            else if ( k->pkt->pkttype == PKT_SECRET_KEY 
                      || k->pkt->pkttype == PKT_SECRET_SUBKEY ) {
                sk = k->pkt->pkt.secret_key;
                if ( sk->is_valid && !sk->is_revoked && !sk->has_expired
		     && sk->protect.s2k.mode!=1001 ) {
                    if ( sk->pubkey_usage & PUBKEY_USAGE_ENC )
                        enc = 1;
                    if ( sk->pubkey_usage & PUBKEY_USAGE_SIG )
		      {
			sign = 1;
			if(sk->is_primary)
			  cert = 1;
		      }
                    if ( (sk->pubkey_usage & PUBKEY_USAGE_AUTH) )
                        auth = 1;
                }
            }
        }
        if (enc)
            putchar ('E');
        if (sign)
            putchar ('S');
        if (cert)
            putchar ('C');
        if (auth)
            putchar ('A');
        if (disabled)
            putchar ('D');
    }

    putchar(':');
}

void
dump_attribs(const PKT_user_id *uid,PKT_public_key *pk,PKT_secret_key *sk)
{
  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)
	    fingerprint_from_pk( pk, array, &n );
	  else if(sk)
	    fingerprint_from_sk( sk, array, &n );
	  else
	    BUG();

	  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);
	}

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

static void
list_keyblock_print ( KBNODE keyblock, int secret, int fpr, void *opaque )
{
    int rc = 0;
    KBNODE kbctx;
    KBNODE node;
    PKT_public_key *pk;
    PKT_secret_key *sk;
    int any=0;
    struct sig_stats *stats=opaque;
    int skip_sigs=0;
    int newformat=((opt.list_options&LIST_SHOW_VALIDITY) && !secret)
      || (opt.list_options & (LIST_SHOW_UNUSABLE_UIDS
			      | LIST_SHOW_UNUSABLE_SUBKEYS))
      || (keystrlen()>10);

    /* get the keyid from the keyblock */
    node = find_kbnode( keyblock, secret? PKT_SECRET_KEY : PKT_PUBLIC_KEY );
    if( !node ) {
	log_error("Oops; key lost!\n");
	dump_kbnode( keyblock );
	return;
    }

    if( secret )
      {
	pk = NULL;
	sk = node->pkt->pkt.secret_key;

        printf("sec%c  %4u%c/%s %s%s",(sk->protect.s2k.mode==1001)?'#':
	       (sk->protect.s2k.mode==1002)?'>':' ',
	       nbits_from_sk( sk ),pubkey_letter( sk->pubkey_algo ),
	       keystr_from_sk(sk),datestr_from_sk( sk ),newformat?"":" " );

	if(newformat && sk->expiredate )
	  printf(_(" [expires: %s]"), expirestr_from_sk( sk ) );
      }
    else
      {
#if 0
	int validity;
#endif
	pk = node->pkt->pkt.public_key;
	sk = NULL;

#if 0
	validity=get_validity(pk,NULL);
#endif

	check_trustdb_stale();

	printf("pub   %4u%c/%s %s%s",
	       nbits_from_pk(pk),pubkey_letter(pk->pubkey_algo),
	       keystr_from_pk(pk),datestr_from_pk( pk ),newformat?"":" " );

	/* We didn't include this before in the key listing, but there
	   is room in the new format, so why not? */
	if(newformat)
	  {
	    if(pk->is_revoked)
	      printf(_(" [revoked: %s]"), revokestr_from_pk( pk ) );
	    else if(pk->has_expired)
	      printf(_(" [expired: %s]"), expirestr_from_pk( pk ) );
	    else if(pk->expiredate)
	      printf(_(" [expires: %s]"), expirestr_from_pk( pk ) );
	  }

#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)
	  printf(" [%s]",trust_value_to_string(validity));
#endif
      }

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

	    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,sk);

	    if(!any && newformat)
	      printf("\n");

	    if((uid->is_revoked || uid->is_expired)
	       || ((opt.list_options&LIST_SHOW_VALIDITY) && pk))
	      {
		const char *validity;
		int indent;

		if(uid->is_revoked)
		  validity=_("revoked");
		else if(uid->is_expired)
		  validity=_("expired");
		else
		  validity=trust_value_to_string(get_validity(pk,uid));

		indent=(keystrlen()+7)-strlen(validity);

		if(indent<0)
		  indent=0;

		printf("uid%*s[%s] ",indent,"",validity);
	      }
	    else if(newformat)
	      printf("uid%*s",keystrlen()+10,"");
	    else if(any)
	      printf("uid%*s",keystrlen()+21,"");

            print_utf8_string( stdout, uid->name, uid->len );
	    putchar('\n');
	    if( !any ) {
		if( fpr )
		    print_fingerprint( pk, sk, 0 );
		if( opt.with_key_data )
		    print_key_data( pk );
		any = 1;
	    }

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

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

	    if( !any )
	      {
		putchar('\n');
		if( fpr )
		  print_fingerprint( pk, sk, 0 ); /* of the main key */
		any = 1;
	      }

            printf("sub   %4u%c/%s %s",
		   nbits_from_pk( pk2 ),pubkey_letter( pk2->pubkey_algo ),
		   keystr_from_pk(pk2),datestr_from_pk(pk2));
	    if( pk2->is_revoked )
	      printf(_(" [revoked: %s]"), revokestr_from_pk(pk2));
	    else if( pk2->has_expired )
	      printf(_(" [expired: %s]"), expirestr_from_pk( pk2 ) );
	    else if( pk2->expiredate )
	      printf(_(" [expires: %s]"), expirestr_from_pk( pk2 ) );
            putchar('\n');
	    if( fpr > 1 )
	      print_fingerprint( pk2, NULL, 0 );
	    if( opt.with_key_data )
	      print_key_data( pk2 );
	  }
	else if( node->pkt->pkttype == PKT_SECRET_SUBKEY )
	  {
	    PKT_secret_key *sk2 = node->pkt->pkt.secret_key;

	    if( !any )
	      {
		putchar('\n');
		if( fpr )
		  print_fingerprint( pk, sk, 0 ); /* of the main key */
		any = 1;
	      }

            printf("ssb%c  %4u%c/%s %s",
                   (sk->protect.s2k.mode==1001)?'#':
                   (sk->protect.s2k.mode==1002)?'>':' ',
		   nbits_from_sk( sk2 ),pubkey_letter( sk2->pubkey_algo ),
		   keystr_from_sk(sk2),datestr_from_sk( sk2 ) );
            if( sk2->expiredate )
	      printf(_(" [expires: %s]"), expirestr_from_sk( sk2 ) );
	    putchar('\n');
	    if( fpr > 1 )
	      print_fingerprint( NULL, sk2, 0 );
	  }
	else if( opt.list_sigs
		 && node->pkt->pkttype == PKT_SIGNATURE
		 && !skip_sigs ) {
	    PKT_signature *sig = node->pkt->pkt.signature;
	    int sigrc;
            char *sigstr;

	    if( stats ) {
                /*fflush(stdout);*/
		rc = check_key_signature( keyblock, node, NULL );
		switch( rc ) {
		 case 0:		 sigrc = '!'; break;
		 case G10ERR_BAD_SIGN:   stats->inv_sigs++; sigrc = '-'; break;
		 case G10ERR_NO_PUBKEY: 
		 case G10ERR_UNU_PUBKEY: stats->no_key++; continue;
		 default:		 stats->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( !any ) { /* no user id, (maybe a revocation follows)*/
	      /* Check if the pk is really revoked - there could be a
                 0x20 sig packet there even if we are not revoked
                 (say, if a revocation key issued the packet, but the
                 revocation key isn't present to verify it.) */
		if( sig->sig_class == 0x20 && pk->is_revoked )
		    puts("[revoked]");
		else if( sig->sig_class == 0x18 )
		    puts("[key binding]");
		else if( sig->sig_class == 0x28 )
		    puts("[subkey revoked]");
		else
		    putchar('\n');
		if( fpr )
		    print_fingerprint( pk, sk, 0 );
		any=1;
	    }

	    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 {
                printf("sig                             "
		       "[unexpected signature class 0x%02x]\n",sig->sig_class );
		continue;
	    }

            fputs( sigstr, stdout );
	    printf("%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)
	      printf(" %s", expirestr_from_sig(sig));
	    printf("  ");
	    if( sigrc == '%' )
		printf("[%s] ", g10_errstr(rc) );
	    else if( sigrc == '?' )
		;
	    else if ( !opt.fast_list_mode ) {
		size_t n;
		char *p = get_user_id( sig->keyid, &n );
                print_utf8_string( stdout, p, n );
		m_free(p);
	    }
	    putchar('\n');

	    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);

	    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 */
	}
    }
    putchar('\n');
}


static void
list_keyblock_colon( KBNODE keyblock, int secret, int fpr )
{
    int rc = 0;
    KBNODE kbctx;
    KBNODE node;
    PKT_public_key *pk;
    PKT_secret_key *sk;
    u32 keyid[2];
    int any=0;
    int trustletter = 0;
    int ulti_hack = 0;
    int i;

    /* get the keyid from the keyblock */
    node = find_kbnode( keyblock, secret? PKT_SECRET_KEY : PKT_PUBLIC_KEY );
    if( !node ) {
	log_error("Oops; key lost!\n");
	dump_kbnode( keyblock );
	return;
    }

    if( secret ) {
	pk = NULL;
	sk = node->pkt->pkt.secret_key;
	keyid_from_sk( sk, keyid );
        printf("sec::%u:%d:%08lX%08lX:%s:%s:::",
		    nbits_from_sk( sk ),
		    sk->pubkey_algo,
		    (ulong)keyid[0],(ulong)keyid[1],
		    colon_datestr_from_sk( sk ),
		    colon_strtime (sk->expiredate)
		    /* fixme: add LID here */ );
    }
    else {
	pk = node->pkt->pkt.public_key;
	sk = NULL;
	keyid_from_pk( pk, keyid );
        fputs( "pub:", stdout );
        if ( !pk->is_valid )
            putchar ('i');
        else if ( pk->is_revoked )
            putchar ('r');
        else if ( pk->has_expired )
            putchar ('e');
        else if ( opt.fast_list_mode || opt.no_expensive_trust_checks ) 
            ;
        else {
            trustletter = get_validity_info ( pk, NULL );
            if( trustletter == 'u' )
                ulti_hack = 1;
            putchar(trustletter);
        }
        printf(":%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( !opt.fast_list_mode && !opt.no_expensive_trust_checks  )
            putchar( get_ownertrust_info(pk) );
	    putchar(':');
    }
    
    if (opt.fixed_list_mode) {
        /* do not merge the first uid with the primary key */
        putchar(':');
        putchar(':');
        print_capabilities (pk, sk, keyblock);
        if (secret) {
          putchar(':'); /* End of field 13. */
          putchar(':'); /* End of field 14. */
          if (sk->protect.s2k.mode == 1001)
            putchar('#'); /* Key is just a stub. */
          else if (sk->protect.s2k.mode == 1002) {
            /* Key is stored on an external token (card) or handled by
               the gpg-agent.  Print the serial number of that token
               here. */
            for (i=0; i < sk->protect.ivlen; i++)
              printf ("%02X", sk->protect.iv[i]);
          }
          putchar(':'); /* End of field 15. */
        }
        putchar('\n');
        if( fpr )
            print_fingerprint( pk, sk, 0 );
        if( opt.with_key_data )
            print_key_data( pk );
        any = 1;
    }


    for( kbctx=NULL; (node=walk_kbnode( keyblock, &kbctx, 0)) ; ) {
	if( node->pkt->pkttype == PKT_USER_ID && !opt.fast_list_mode ) {
	    PKT_user_id *uid=node->pkt->pkt.user_id;
	    if(attrib_fp && node->pkt->pkt.user_id->attrib_data!=NULL)
	      dump_attribs(node->pkt->pkt.user_id,pk,sk);
            /*
             * Fixme: We need a is_valid flag here too 
             */
	    if( any ) {
	        char *str=uid->attrib_data?"uat":"uid";
		/* If we're listing a secret key, leave out the
		   validity values for now.  This is handled better in
		   1.9. */
		if ( sk )
        	    printf("%s:::::",str);
                else if ( uid->is_revoked )
        	    printf("%s:r::::",str);
                else if ( uid->is_expired )
        	    printf("%s:e::::",str);
		else if ( opt.no_expensive_trust_checks )
        	    printf("%s:::::",str);
                else {
		    int uid_validity;

		    if( pk && !ulti_hack )
		      uid_validity=get_validity_info (pk, uid);
		    else
			uid_validity = 'u';
		    printf("%s:%c::::",str,uid_validity);
                }

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

		namehash_from_uid(uid);

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

		printf("::");
	    }
	    if(uid->attrib_data)
	      printf("%u %lu",uid->numattribs,uid->attrib_len);
            else
	      print_string(stdout,uid->name,uid->len, ':' );
            putchar(':');
	    if (any)
                putchar('\n');
            else {
                putchar(':');
                print_capabilities (pk, sk, keyblock);
                putchar('\n');
		if( fpr )
		    print_fingerprint( pk, sk, 0 );
		if( opt.with_key_data )
		    print_key_data( pk );
		any = 1;
	    }
	}
	else if( node->pkt->pkttype == PKT_PUBLIC_SUBKEY ) {
	    u32 keyid2[2];
	    PKT_public_key *pk2 = node->pkt->pkt.public_key;

	    if( !any ) {
                putchar(':');
                putchar(':');
                print_capabilities (pk, sk, keyblock);
                putchar('\n');
		if( fpr )
		    print_fingerprint( pk, sk, 0 ); /* of the main key */
		any = 1;
	    }

	    keyid_from_pk( pk2, keyid2 );
            fputs ("sub:", stdout );
            if ( !pk2->is_valid )
                putchar ('i');
            else if ( pk2->is_revoked )
                putchar ('r');
            else if ( pk2->has_expired )
                putchar ('e');
            else if ( opt.fast_list_mode || opt.no_expensive_trust_checks )
                ;
            else {
	        /* trustletter should always be defined here */
	        if(trustletter)
		  printf("%c", trustletter );
            }
            printf(":%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, NULL);
            putchar('\n');
	    if( fpr > 1 )
		print_fingerprint( pk2, NULL, 0 );
	    if( opt.with_key_data )
		print_key_data( pk2 );
	}
	else if( node->pkt->pkttype == PKT_SECRET_SUBKEY ) {
	    u32 keyid2[2];
	    PKT_secret_key *sk2 = node->pkt->pkt.secret_key;

	    if( !any ) {
                putchar(':');
                putchar(':');
                print_capabilities (pk, sk, keyblock);
		putchar('\n');
		if( fpr )
		    print_fingerprint( pk, sk, 0 ); /* of the main key */
		any = 1;
	    }

	    keyid_from_sk( sk2, keyid2 );
            printf("ssb::%u:%d:%08lX%08lX:%s:%s:::::",
			nbits_from_sk( sk2 ),
			sk2->pubkey_algo,
			(ulong)keyid2[0],(ulong)keyid2[1],
			colon_datestr_from_sk( sk2 ),
			colon_strtime (sk2->expiredate)
                   /* fixme: add LID */ );
            print_capabilities (NULL, sk2, NULL);
            if (opt.fixed_list_mode) {
              /* We print the serial number only in fixed list mode
                 for the primary key so, so avoid questions we print
                 it for subkeys also only in this mode.  There is no
                 technical reason, though. */
              putchar(':'); /* End of field 13. */
              putchar(':'); /* End of field 14. */
              if (sk2->protect.s2k.mode == 1001)
                putchar('#'); /* Key is just a stub. */
              else if (sk2->protect.s2k.mode == 1002) {
                /* Key is stored on an external token (card) or handled by
                   the gpg-agent.  Print the serial number of that token
                   here. */
                for (i=0; i < sk2->protect.ivlen; i++)
                  printf ("%02X", sk2->protect.iv[i]);
              }
              putchar(':'); /* End of field 15. */
            }
            putchar ('\n');
	    if( fpr > 1 )
              print_fingerprint( NULL, sk2, 0 );
	}
	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];

	    if( !any ) { /* no user id, (maybe a revocation follows)*/
		if( sig->sig_class == 0x20 )
		    fputs("[revoked]:", stdout);
		else if( sig->sig_class == 0x18 )
		    fputs("[key binding]:", stdout);
		else if( sig->sig_class == 0x28 )
		    fputs("[subkey revoked]:", stdout);
                else
                    putchar (':');
                putchar(':');
                print_capabilities (pk, sk, keyblock);
                putchar('\n');
		if( fpr )
		    print_fingerprint( pk, sk, 0 );
		any=1;
	    }

	    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 {
                printf ("sig::::::::::%02x%c:\n",
                        sig->sig_class, sig->flags.exportable?'x':'l');
		continue;
	    }
	    if( opt.check_sigs ) {
	        PKT_public_key *signer_pk=NULL;

		fflush(stdout);
		if(opt.no_sig_cache)
		  signer_pk=m_alloc_clear(sizeof(PKT_public_key));

		rc = check_key_signature2( keyblock, node, NULL, signer_pk,
					   NULL, NULL, NULL );
		switch( rc ) {
		  case 0:		   sigrc = '!'; break;
		  case G10ERR_BAD_SIGN:    sigrc = '-'; break;
		  case G10ERR_NO_PUBKEY: 
		  case G10ERR_UNU_PUBKEY:  sigrc = '?'; break;
		  default:		   sigrc = '%'; break;
		}

		if(opt.no_sig_cache)
		  {
		    if(rc==0)
		      {
			fingerprint_from_pk (signer_pk, fparray, &fplen);
			fprokay=1;
		      }
		    free_public_key(signer_pk);
		  }
	    }
	    else {
		rc = 0;
		sigrc = ' ';
	    }
            fputs( sigstr, stdout );
            putchar(':');
            if( sigrc != ' ' )
                putchar(sigrc);
            printf("::%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)
	      printf("%d %d",sig->trust_depth,sig->trust_value);
	    printf(":");

	    if(sig->trust_regexp)
	      print_string(stdout,sig->trust_regexp,
			   strlen(sig->trust_regexp),':');
	    printf(":");

	    if( sigrc == '%' )
		printf("[%s] ", g10_errstr(rc) );
	    else if( sigrc == '?' )
		;
	    else if ( !opt.fast_list_mode ) {
		size_t n;
		char *p = get_user_id( sig->keyid, &n );
                print_string( stdout, p, n, ':' );
		m_free(p);
	    }
            printf(":%02x%c:", sig->sig_class,sig->flags.exportable?'x':'l');

	    if(opt.no_sig_cache && opt.check_sigs && fprokay)
	      {
		printf(":");

		for (i=0; i < fplen ; i++ )
		  printf ("%02X", fparray[i] );

		printf(":");
	      }

	    printf("\n");

	    /* fixme: check or list other sigs here */
	}
    }
    if( !any ) {/* oops, no user id */
        putchar(':');
        putchar(':');
        print_capabilities (pk, sk, keyblock);
	putchar('\n');
    }
}

/*
 * Reorder the keyblock so that the primary user ID (and not attribute
 * packet) comes first.  Fixme: Replace this by a generic sort
 * function.  */
void
reorder_keyblock (KBNODE keyblock)
{
    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 &&
	    !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;
    }
    assert (node);
    assert (last); /* the user ID is never the first packet */
    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
list_keyblock( KBNODE keyblock, int secret, int fpr, void *opaque )
{
    reorder_keyblock (keyblock);
    if (opt.with_colons)
        list_keyblock_colon (keyblock, secret, fpr );
    else
        list_keyblock_print (keyblock, secret, fpr, opaque );
}

/*
 * standard 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.
 * modes 1 and 2 will try and print both subkey and primary key fingerprints
 */
void
print_fingerprint (PKT_public_key *pk, PKT_secret_key *sk, int mode )
{
    byte array[MAX_FINGERPRINT_LEN], *p;
    size_t i, n;
    FILE *fp;
    const char *text;
    int primary=0;

    if(sk)
      {
	if(sk->main_keyid[0]==sk->keyid[0] && sk->main_keyid[1]==sk->keyid[1])
	  primary=1;
      }
    else
      {
	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))
      {
	if(sk)
	  {
	    PKT_secret_key *primary_sk=m_alloc_clear(sizeof(*primary_sk));
	    get_seckey(primary_sk,sk->main_keyid);
	    print_fingerprint(NULL,primary_sk,mode|0x80);
	    free_secret_key(primary_sk);
	  }
	else
	  {
	    PKT_public_key *primary_pk=m_alloc_clear(sizeof(*primary_pk));
	    get_pubkey(primary_pk,pk->main_keyid);
	    print_fingerprint(primary_pk,NULL,mode|0x80);
	    free_public_key(primary_pk);
	  }
      }

    if (mode == 1) {
        fp = log_stream ();
	if(primary)
	  text = _("Primary key fingerprint:");
	else
	  text = _("     Subkey fingerprint:");
    }
    else if (mode == 2) {
        fp = NULL; /* use tty */
        /* Translators: this should fit into 24 bytes to that the fingerprint
         * data is properly aligned with the user ID */
	if(primary)
	  text = _(" Primary key fingerprint:");
	else
	  text = _("      Subkey fingerprint:");
    }
    else if (mode == 3) {
        fp = NULL; /* use tty */
	text = _("      Key fingerprint =");
    }
    else {
        fp = stdout;
	text = _("      Key fingerprint =");
    }
  
    if (sk)
	fingerprint_from_sk (sk, array, &n);
    else
	fingerprint_from_pk (pk, array, &n);
    p = array;
    if (opt.with_colons && !mode) {
	fprintf (fp, "fpr:::::::::");
	for (i=0; i < n ; i++, p++ )
	    fprintf (fp, "%02X", *p );
	putc(':', fp);
    }
    else {
        if (fp)
            fputs (text, fp);
        else
            tty_printf ("%s", text);
	if (n == 20) {
	    for (i=0; i < n ; i++, i++, p += 2 ) {
                if (fp) {
                    if (i == 10 )
                        putc(' ', fp);
                    fprintf (fp, " %02X%02X", *p, p[1] );
                }
                else {
                    if (i == 10 )
                        tty_printf (" ");
                    tty_printf (" %02X%02X", *p, p[1]);
                }
	    }
	}
	else {
	    for (i=0; i < n ; i++, p++ ) {
                if (fp) {
                    if (i && !(i%8) )
                        putc (' ', fp);
                    fprintf (fp, " %02X", *p );
                }
                else {
                    if (i && !(i%8) )
                        tty_printf (" ");
                    tty_printf (" %02X", *p );
                }
	    }
	}
    }
    if (fp)
        putc ('\n', fp);
    else
        tty_printf ("\n");
}

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

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

  if ( attrib_fp && attrib_fp != stdout && attrib_fp != stderr )
    fclose (attrib_fp);
  attrib_fp = NULL;
  if ( fd == -1 ) 
    return;

  if( fd == 1 )
    attrib_fp = stdout;
  else if( fd == 2 )
    attrib_fp = stderr;
  else
    attrib_fp = fdopen( fd, "wb" );
  if( !attrib_fp ) {
    log_fatal("can't open fd %d for attribute output: %s\n",
	      fd, strerror(errno));
  }

  last_fd = fd;
}