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618 lines
15 KiB
C
618 lines
15 KiB
C
/* keylist.c
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* Copyright (C) 1998, 1999, 2000, 2001, 2003 Free Software Foundation, Inc.
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*
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* This file is part of GnuPG.
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*
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* GnuPG is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* GnuPG is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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#include <config.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <unistd.h>
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#include <time.h>
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#include <assert.h>
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#include "gpgsm.h"
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#include <gcrypt.h>
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#include <ksba.h>
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#include "keydb.h"
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#include "i18n.h"
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struct list_external_parm_s {
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FILE *fp;
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int print_header;
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int with_colons;
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int with_chain;
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};
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static void
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print_key_data (KsbaCert cert, FILE *fp)
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{
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#if 0
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int n = pk ? pubkey_get_npkey( pk->pubkey_algo ) : 0;
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int i;
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for(i=0; i < n; i++ )
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{
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fprintf (fp, "pkd:%d:%u:", i, mpi_get_nbits( pk->pkey[i] ) );
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mpi_print(stdout, pk->pkey[i], 1 );
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putchar(':');
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putchar('\n');
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}
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#endif
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}
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static void
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print_capabilities (KsbaCert cert, FILE *fp)
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{
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KsbaError err;
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unsigned int use;
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err = ksba_cert_get_key_usage (cert, &use);
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if (err == KSBA_No_Data)
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{
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putc ('e', fp);
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putc ('s', fp);
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putc ('c', fp);
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putc ('E', fp);
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putc ('S', fp);
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putc ('C', fp);
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return;
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}
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if (err)
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{
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log_error (_("error getting key usage information: %s\n"),
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ksba_strerror (err));
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return;
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}
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if ((use & (KSBA_KEYUSAGE_KEY_ENCIPHERMENT|KSBA_KEYUSAGE_DATA_ENCIPHERMENT)))
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putc ('e', fp);
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if ((use & (KSBA_KEYUSAGE_DIGITAL_SIGNATURE|KSBA_KEYUSAGE_NON_REPUDIATION)))
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putc ('s', fp);
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if ((use & KSBA_KEYUSAGE_KEY_CERT_SIGN))
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putc ('c', fp);
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if ((use & (KSBA_KEYUSAGE_KEY_ENCIPHERMENT|KSBA_KEYUSAGE_DATA_ENCIPHERMENT)))
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putc ('E', fp);
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if ((use & (KSBA_KEYUSAGE_DIGITAL_SIGNATURE|KSBA_KEYUSAGE_NON_REPUDIATION)))
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putc ('S', fp);
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if ((use & KSBA_KEYUSAGE_KEY_CERT_SIGN))
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putc ('C', fp);
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}
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static void
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print_time (time_t t, FILE *fp)
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{
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if (!t)
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;
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else if ( t == (time_t)(-1) )
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putc ('?', fp);
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else
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fprintf (fp, "%lu", (unsigned long)t);
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}
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/* return an allocated string with the email address extracted from a
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DN */
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static char *
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email_kludge (const char *name)
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{
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const unsigned char *p;
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unsigned char *buf;
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int n;
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if (strncmp (name, "1.2.840.113549.1.9.1=#", 22))
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return NULL;
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/* This looks pretty much like an email address in the subject's DN
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we use this to add an additional user ID entry. This way,
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openSSL generated keys get a nicer and usable listing */
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name += 22;
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for (n=0, p=name; hexdigitp (p) && hexdigitp (p+1); p +=2, n++)
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;
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if (*p != '#' || !n)
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return NULL;
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buf = xtrymalloc (n+3);
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if (!buf)
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return NULL; /* oops, out of core */
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*buf = '<';
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for (n=1, p=name; *p != '#'; p +=2, n++)
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buf[n] = xtoi_2 (p);
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buf[n++] = '>';
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buf[n] = 0;
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return buf;
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}
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/* List one certificate in colon mode */
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static void
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list_cert_colon (KsbaCert cert, FILE *fp, int have_secret)
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{
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int idx, trustletter = 0;
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char *p;
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KsbaSexp sexp;
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char *fpr;
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fputs (have_secret? "crs:":"crt:", fp);
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trustletter = 0;
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#if 0
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if (is_not_valid (cert))
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putc ('i', fp);
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else if ( is_revoked (cert) )
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putc ('r', fp);
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else if ( has_expired (cert))
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putcr ('e', fp);
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else
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#endif
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{
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trustletter = '?'; /*get_validity_info ( pk, NULL );*/
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putc (trustletter, fp);
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}
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fpr = gpgsm_get_fingerprint_hexstring (cert, GCRY_MD_SHA1);
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fprintf (fp, ":%u:%d:%s:",
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/*keylen_of_cert (cert)*/1024,
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/* pubkey_algo_of_cert (cert)*/1,
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fpr+24);
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/* we assume --fixed-list-mode for gpgsm */
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print_time ( ksba_cert_get_validity (cert, 0), fp);
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putc (':', fp);
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print_time ( ksba_cert_get_validity (cert, 1), fp);
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putc (':', fp);
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/* field 8, serial number: */
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if ((sexp = ksba_cert_get_serial (cert)))
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{
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int len;
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const unsigned char *s = sexp;
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if (*s == '(')
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{
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s++;
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for (len=0; *s && *s != ':' && digitp (s); s++)
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len = len*10 + atoi_1 (s);
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if (*s == ':')
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for (s++; len; len--, s++)
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fprintf (fp,"%02X", *s);
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}
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xfree (sexp);
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}
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putc (':', fp);
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/* field 9, ownertrust - not used here */
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putc (':', fp);
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/* field 10, old user ID - we use it here for the issuer DN */
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if ((p = ksba_cert_get_issuer (cert,0)))
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{
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print_sanitized_string (fp, p, ':');
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xfree (p);
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}
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putc (':', fp);
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/* field 11, signature class - not used */
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putc (':', fp);
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/* field 12, capabilities: */
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print_capabilities (cert, fp);
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putc (':', fp);
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putc ('\n', fp);
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/* FPR record */
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fprintf (fp, "fpr:::::::::%s:::", fpr);
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xfree (fpr); fpr = NULL;
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/* print chaining ID (field 13)*/
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{
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KsbaCert next;
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if (!gpgsm_walk_cert_chain (cert, &next))
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{
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p = gpgsm_get_fingerprint_hexstring (next, GCRY_MD_SHA1);
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fputs (p, fp);
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xfree (p);
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ksba_cert_release (next);
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}
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}
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putc (':', fp);
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putc ('\n', fp);
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if (opt.with_key_data)
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{
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if ( (p = gpgsm_get_keygrip_hexstring (cert)))
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{
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fprintf (fp, "grp:::::::::%s:\n", p);
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xfree (p);
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}
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print_key_data (cert, fp);
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}
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for (idx=0; (p = ksba_cert_get_subject (cert,idx)); idx++)
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{
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fprintf (fp, "uid:%c::::::::", trustletter);
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print_sanitized_string (fp, p, ':');
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putc (':', fp);
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putc (':', fp);
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putc ('\n', fp);
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if (!idx)
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{
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/* It would be better to get the faked email address from
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the keydb. But as long as we don't have a way to pass
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the meta data back, we just check it the same way as the
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code used to create the keybox meta data does */
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char *pp = email_kludge (p);
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if (pp)
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{
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fprintf (fp, "uid:%c::::::::", trustletter);
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print_sanitized_string (fp, pp, ':');
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putc (':', fp);
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putc (':', fp);
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putc ('\n', fp);
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xfree (pp);
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}
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}
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xfree (p);
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}
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}
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/* List one certificate in standard mode */
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static void
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list_cert_std (KsbaCert cert, FILE *fp, int have_secret)
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{
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KsbaError kerr;
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KsbaSexp sexp;
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char *dn;
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time_t t;
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int idx;
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int is_ca, chainlen;
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unsigned int kusage;
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char *string, *p;
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sexp = ksba_cert_get_serial (cert);
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fputs ("Serial number: ", fp);
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gpgsm_print_serial (fp, sexp);
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ksba_free (sexp);
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putc ('\n', fp);
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dn = ksba_cert_get_issuer (cert, 0);
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fputs (" Issuer: ", fp);
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gpgsm_print_name (fp, dn);
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ksba_free (dn);
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putc ('\n', fp);
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for (idx=1; (dn = ksba_cert_get_issuer (cert, idx)); idx++)
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{
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fputs (" aka: ", fp);
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gpgsm_print_name (fp, dn);
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ksba_free (dn);
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putc ('\n', fp);
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}
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dn = ksba_cert_get_subject (cert, 0);
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fputs (" Subject: ", fp);
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gpgsm_print_name (fp, dn);
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ksba_free (dn);
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putc ('\n', fp);
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for (idx=1; (dn = ksba_cert_get_subject (cert, idx)); idx++)
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{
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fputs (" aka: ", fp);
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gpgsm_print_name (fp, dn);
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ksba_free (dn);
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putc ('\n', fp);
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}
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t = ksba_cert_get_validity (cert, 0);
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fputs (" validity: ", fp);
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gpgsm_print_time (fp, t);
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fputs (" through ", fp);
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t = ksba_cert_get_validity (cert, 1);
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gpgsm_print_time (fp, t);
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putc ('\n', fp);
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kerr = ksba_cert_get_key_usage (cert, &kusage);
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if (kerr != KSBA_No_Data)
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{
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fputs (" key usage:", fp);
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if (kerr)
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fprintf (fp, " [error: %s]", ksba_strerror (kerr));
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else
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{
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if ( (kusage & KSBA_KEYUSAGE_DIGITAL_SIGNATURE))
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fputs (" digitalSignature", fp);
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if ( (kusage & KSBA_KEYUSAGE_NON_REPUDIATION))
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fputs (" nonRepudiation", fp);
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if ( (kusage & KSBA_KEYUSAGE_KEY_ENCIPHERMENT))
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fputs (" keyEncipherment", fp);
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if ( (kusage & KSBA_KEYUSAGE_DATA_ENCIPHERMENT))
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fputs (" dataEncipherment", fp);
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if ( (kusage & KSBA_KEYUSAGE_KEY_AGREEMENT))
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fputs (" keyAgreement", fp);
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if ( (kusage & KSBA_KEYUSAGE_KEY_CERT_SIGN))
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fputs (" certSign", fp);
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if ( (kusage & KSBA_KEYUSAGE_CRL_SIGN))
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fputs (" crlSign", fp);
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if ( (kusage & KSBA_KEYUSAGE_ENCIPHER_ONLY))
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fputs (" encipherOnly", fp);
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if ( (kusage & KSBA_KEYUSAGE_DECIPHER_ONLY))
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fputs (" decipherOnly", fp);
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}
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putc ('\n', fp);
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}
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kerr = ksba_cert_get_cert_policies (cert, &string);
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if (kerr != KSBA_No_Data)
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{
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fputs (" policies: ", fp);
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if (kerr)
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fprintf (fp, "[error: %s]", ksba_strerror (kerr));
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else
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{
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for (p=string; *p; p++)
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{
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if (*p == '\n')
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*p = ',';
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}
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print_sanitized_string (fp, string, 0);
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xfree (string);
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}
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putc ('\n', fp);
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}
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kerr = ksba_cert_is_ca (cert, &is_ca, &chainlen);
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if (kerr || is_ca)
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{
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fputs (" chain length: ", fp);
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if (kerr)
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fprintf (fp, "[error: %s]", ksba_strerror (kerr));
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else if (chainlen == -1)
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fputs ("unlimited", fp);
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else
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fprintf (fp, "%d", chainlen);
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putc ('\n', fp);
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}
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dn = gpgsm_get_fingerprint_string (cert, 0);
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fprintf (fp, " fingerprint: %s\n", dn?dn:"error");
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xfree (dn);
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}
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/* Same as standard mode mode list all certifying certts too */
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static void
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list_cert_chain (KsbaCert cert, FILE *fp)
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{
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KsbaCert next = NULL;
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list_cert_std (cert, fp, 0);
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ksba_cert_ref (cert);
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while (!gpgsm_walk_cert_chain (cert, &next))
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{
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ksba_cert_release (cert);
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fputs ("Certified by\n", fp);
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list_cert_std (next, fp, 0);
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cert = next;
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}
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ksba_cert_release (cert);
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putc ('\n', fp);
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}
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/* List all internal keys or just the key given as NAMES.
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*/
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static void
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list_internal_keys (CTRL ctrl, STRLIST names, FILE *fp, unsigned int mode)
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{
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KEYDB_HANDLE hd;
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KEYDB_SEARCH_DESC *desc = NULL;
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STRLIST sl;
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int ndesc;
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KsbaCert cert = NULL;
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int rc=0;
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const char *lastresname, *resname;
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int have_secret;
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hd = keydb_new (0);
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if (!hd)
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{
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log_error ("keydb_new failed\n");
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goto leave;
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}
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if (!names)
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ndesc = 1;
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else
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{
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for (sl=names, ndesc=0; sl; sl = sl->next, ndesc++)
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;
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}
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desc = xtrycalloc (ndesc, sizeof *desc);
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if (!ndesc)
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{
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log_error ("out of core\n");
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goto leave;
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}
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if (!names)
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desc[0].mode = KEYDB_SEARCH_MODE_FIRST;
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else
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{
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for (ndesc=0, sl=names; sl; sl = sl->next)
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{
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rc = keydb_classify_name (sl->d, desc+ndesc);
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if (rc)
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{
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log_error ("key `%s' not found: %s\n",
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sl->d, gpg_strerror (rc));
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rc = 0;
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}
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else
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ndesc++;
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}
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}
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/* it would be nice to see which of the given users did actually
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match one in the keyring. To implement this we need to have a
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found flag for each entry in desc and to set this we must check
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all those entries after a match to mark all matched one -
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currently we stop at the first match. To do this we need an
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extra flag to enable this feature so */
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lastresname = NULL;
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while (!(rc = keydb_search (hd, desc, ndesc)))
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{
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if (!names)
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desc[0].mode = KEYDB_SEARCH_MODE_NEXT;
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rc = keydb_get_cert (hd, &cert);
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if (rc)
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{
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log_error ("keydb_get_cert failed: %s\n", gpg_strerror (rc));
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goto leave;
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}
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resname = keydb_get_resource_name (hd);
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if (lastresname != resname )
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{
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int i;
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if (ctrl->no_server)
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{
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fprintf (fp, "%s\n", resname );
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for (i=strlen(resname); i; i-- )
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putchar('-');
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putc ('\n', fp);
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lastresname = resname;
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}
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}
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have_secret = 0;
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if (mode)
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{
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char *p = gpgsm_get_keygrip_hexstring (cert);
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if (p)
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{
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if (!gpgsm_agent_havekey (p))
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have_secret = 1;
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xfree (p);
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}
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}
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if (!mode
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|| ((mode & 1) && !have_secret)
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|| ((mode & 2) && have_secret) )
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{
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if (ctrl->with_colons)
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list_cert_colon (cert, fp, have_secret);
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else if (ctrl->with_chain)
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list_cert_chain (cert, fp);
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else
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{
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||
list_cert_std (cert, fp, have_secret);
|
||
putc ('\n', fp);
|
||
}
|
||
}
|
||
ksba_cert_release (cert);
|
||
cert = NULL;
|
||
}
|
||
if (rc && rc != -1)
|
||
log_error ("keydb_search failed: %s\n", gpg_strerror (rc));
|
||
|
||
leave:
|
||
ksba_cert_release (cert);
|
||
xfree (desc);
|
||
keydb_release (hd);
|
||
}
|
||
|
||
|
||
|
||
static void
|
||
list_external_cb (void *cb_value, KsbaCert cert)
|
||
{
|
||
struct list_external_parm_s *parm = cb_value;
|
||
|
||
if (keydb_store_cert (cert, 1, NULL))
|
||
log_error ("error storing certificate as ephemeral\n");
|
||
|
||
if (parm->print_header)
|
||
{
|
||
const char *resname = "[external keys]";
|
||
int i;
|
||
|
||
fprintf (parm->fp, "%s\n", resname );
|
||
for (i=strlen(resname); i; i-- )
|
||
putchar('-');
|
||
putc ('\n', parm->fp);
|
||
parm->print_header = 0;
|
||
}
|
||
|
||
if (parm->with_colons)
|
||
list_cert_colon (cert, parm->fp, 0);
|
||
else if (parm->with_chain)
|
||
list_cert_chain (cert, parm->fp);
|
||
else
|
||
{
|
||
list_cert_std (cert, parm->fp, 0);
|
||
putc ('\n', parm->fp);
|
||
}
|
||
}
|
||
|
||
|
||
/* List external keys similar to internal one. Note: mode does not
|
||
make sense here because it would be unwise to list external secret
|
||
keys */
|
||
static void
|
||
list_external_keys (CTRL ctrl, STRLIST names, FILE *fp)
|
||
{
|
||
int rc;
|
||
struct list_external_parm_s parm;
|
||
|
||
parm.fp = fp;
|
||
parm.print_header = ctrl->no_server;
|
||
parm.with_colons = ctrl->with_colons;
|
||
parm.with_chain = ctrl->with_chain;
|
||
|
||
rc = gpgsm_dirmngr_lookup (ctrl, names, list_external_cb, &parm);
|
||
if (rc)
|
||
log_error ("listing external keys failed: %s\n", gpg_strerror (rc));
|
||
}
|
||
|
||
/* List all keys or just the key given as NAMES.
|
||
MODE controls the operation mode:
|
||
Bit 0-2:
|
||
0 = list all public keys but don't flag secret ones
|
||
1 = list only public keys
|
||
2 = list only secret keys
|
||
3 = list secret and public keys
|
||
Bit 6: list internal keys
|
||
Bit 7: list external keys
|
||
*/
|
||
void
|
||
gpgsm_list_keys (CTRL ctrl, STRLIST names, FILE *fp, unsigned int mode)
|
||
{
|
||
if ((mode & (1<<6)))
|
||
list_internal_keys (ctrl, names, fp, (mode & 3));
|
||
if ((mode & (1<<7)))
|
||
list_external_keys (ctrl, names, fp);
|
||
}
|