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-rw-r--r--kbx/keybox-dump.c915
1 files changed, 915 insertions, 0 deletions
diff --git a/kbx/keybox-dump.c b/kbx/keybox-dump.c
new file mode 100644
index 0000000..3e66b72
--- /dev/null
+++ b/kbx/keybox-dump.c
@@ -0,0 +1,915 @@
+/* keybox-dump.c - Debug helpers
+ * Copyright (C) 2001, 2003 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 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 <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+
+#include "keybox-defs.h"
+#include <gcrypt.h>
+#include "../common/host2net.h"
+
+/* Argg, we can't include ../common/util.h */
+char *bin2hexcolon (const void *buffer, size_t length, char *stringbuf);
+
+#define get32(a) buf32_to_ulong ((a))
+#define get16(a) buf16_to_ulong ((a))
+
+
+void
+print_string (FILE *fp, const byte *p, size_t n, int delim)
+{
+ for ( ; n; n--, p++ )
+ {
+ if (*p < 0x20 || (*p >= 0x7f && *p < 0xa0) || *p == delim)
+ {
+ putc('\\', fp);
+ if( *p == '\n' )
+ putc('n', fp);
+ else if( *p == '\r' )
+ putc('r', fp);
+ else if( *p == '\f' )
+ putc('f', fp);
+ else if( *p == '\v' )
+ putc('v', fp);
+ else if( *p == '\b' )
+ putc('b', fp);
+ else if( !*p )
+ putc('0', fp);
+ else
+ fprintf(fp, "x%02x", *p );
+ }
+ else
+ putc(*p, fp);
+ }
+}
+
+
+static int
+print_checksum (const byte *buffer, size_t length, size_t unhashed, FILE *fp)
+{
+ const byte *p;
+ int i;
+ int hashlen;
+ unsigned char digest[20];
+
+ fprintf (fp, "Checksum: ");
+ if (unhashed && unhashed < 20)
+ {
+ fputs ("[specified unhashed sized too short]\n", fp);
+ return 0;
+ }
+ if (!unhashed)
+ {
+ unhashed = 16;
+ hashlen = 16;
+ }
+ else
+ hashlen = 20;
+
+ if (length < 5+unhashed)
+ {
+ fputs ("[blob too short for a checksum]\n", fp);
+ return 0;
+ }
+
+ p = buffer + length - hashlen;
+ for (i=0; i < hashlen; p++, i++)
+ fprintf (fp, "%02x", *p);
+
+ if (hashlen == 16) /* Compatibility method. */
+ {
+ gcry_md_hash_buffer (GCRY_MD_MD5, digest, buffer, length - 16);
+ if (!memcmp (buffer + length - 16, digest, 16))
+ fputs (" [valid]\n", fp);
+ else
+ fputs (" [bad]\n", fp);
+ }
+ else
+ {
+ gcry_md_hash_buffer (GCRY_MD_SHA1, digest, buffer, length - unhashed);
+ if (!memcmp (buffer + length - hashlen, digest, hashlen))
+ fputs (" [valid]\n", fp);
+ else
+ fputs (" [bad]\n", fp);
+ }
+ return 0;
+}
+
+
+static int
+dump_header_blob (const byte *buffer, size_t length, FILE *fp)
+{
+ unsigned long n;
+
+ if (length < 32)
+ {
+ fprintf (fp, "[blob too short]\n");
+ return -1;
+ }
+ fprintf (fp, "Version: %d\n", buffer[5]);
+
+ n = get16 (buffer + 6);
+ fprintf( fp, "Flags: %04lX", n);
+ if (n)
+ {
+ int any = 0;
+
+ fputs (" (", fp);
+ if ((n & 2))
+ {
+ if (any)
+ putc (',', fp);
+ fputs ("openpgp", fp);
+ any++;
+ }
+ putc (')', fp);
+ }
+ putc ('\n', fp);
+
+ if ( memcmp (buffer+8, "KBXf", 4))
+ fprintf (fp, "[Error: invalid magic number]\n");
+
+ n = get32 (buffer+16);
+ fprintf( fp, "created-at: %lu\n", n );
+ n = get32 (buffer+20);
+ fprintf( fp, "last-maint: %lu\n", n );
+
+ return 0;
+}
+
+
+/* Dump one block to FP */
+int
+_keybox_dump_blob (KEYBOXBLOB blob, FILE *fp)
+{
+ const byte *buffer;
+ size_t length;
+ int type, i;
+ ulong n, nkeys, keyinfolen;
+ ulong nuids, uidinfolen;
+ ulong nsigs, siginfolen;
+ ulong rawdata_off, rawdata_len;
+ ulong nserial;
+ ulong unhashed;
+ const byte *p;
+ const byte *pend;
+ int is_fpr32; /* blob version 2 */
+
+ buffer = _keybox_get_blob_image (blob, &length);
+
+ if (length < 32)
+ {
+ fprintf (fp, "[blob too short]\n");
+ return -1;
+ }
+
+ n = get32( buffer );
+ if (n > length)
+ fprintf (fp, "[blob larger than length - output truncated]\n");
+ else
+ length = n; /* ignore the rest */
+
+ fprintf (fp, "Length: %lu\n", n );
+ type = buffer[4];
+ switch (type)
+ {
+ case KEYBOX_BLOBTYPE_EMPTY:
+ fprintf (fp, "Type: Empty\n");
+ return 0;
+
+ case KEYBOX_BLOBTYPE_HEADER:
+ fprintf (fp, "Type: Header\n");
+ return dump_header_blob (buffer, length, fp);
+ case KEYBOX_BLOBTYPE_PGP:
+ fprintf (fp, "Type: OpenPGP\n");
+ break;
+ case KEYBOX_BLOBTYPE_X509:
+ fprintf (fp, "Type: X.509\n");
+ break;
+ default:
+ fprintf (fp, "Type: %d\n", type);
+ fprintf (fp, "[can't dump this blob type]\n");
+ return 0;
+ }
+ /* Here we have either BLOGTYPE_X509 or BLOBTYPE_OPENPGP */
+ fprintf (fp, "Version: %d\n", buffer[5]);
+ is_fpr32 = buffer[5] == 2;
+
+ if (length < 40)
+ {
+ fprintf (fp, "[blob too short]\n");
+ return -1;
+ }
+
+ n = get16 (buffer + 6);
+ fprintf( fp, "Blob-Flags: %04lX", n);
+ if (n)
+ {
+ int any = 0;
+
+ fputs (" (", fp);
+ if ((n & 1))
+ {
+ fputs ("secret", fp);
+ any++;
+ }
+ if ((n & 2))
+ {
+ if (any)
+ putc (',', fp);
+ fputs ("ephemeral", fp);
+ any++;
+ }
+ putc (')', fp);
+ }
+ putc ('\n', fp);
+
+ rawdata_off = get32 (buffer + 8);
+ rawdata_len = get32 (buffer + 12);
+
+ fprintf( fp, "Data-Offset: %lu\n", rawdata_off );
+ fprintf( fp, "Data-Length: %lu\n", rawdata_len );
+ if (rawdata_off > length || rawdata_len > length
+ || rawdata_off+rawdata_len > length
+ || rawdata_len + 4 > length
+ || rawdata_off+rawdata_len + 4 > length)
+ {
+ fprintf (fp, "[Error: raw data larger than blob]\n");
+ return -1;
+ }
+
+ if (rawdata_off > length
+ || rawdata_len > length
+ || rawdata_off + rawdata_len > length)
+ {
+ fprintf (fp, "[Error: unhashed data larger than blob]\n");
+ return -1;
+ }
+ unhashed = length - rawdata_off - rawdata_len;
+ fprintf (fp, "Unhashed: %lu\n", unhashed);
+
+ nkeys = get16 (buffer + 16);
+ fprintf (fp, "Key-Count: %lu\n", nkeys );
+ if (!nkeys)
+ fprintf (fp, "[Error: no keys]\n");
+ if (nkeys > 1 && type == KEYBOX_BLOBTYPE_X509)
+ fprintf (fp, "[Error: only one key allowed for X509]\n");
+
+ keyinfolen = get16 (buffer + 18 );
+ fprintf (fp, "Key-Info-Length: %lu\n", keyinfolen);
+ p = buffer + 20;
+ pend = buffer + length;
+ for (n=0; n < nkeys; n++, p += keyinfolen)
+ {
+ ulong kidoff, kflags;
+
+ if (p + keyinfolen >= pend)
+ {
+ fprintf (fp, "[Error: key data larger than blob]\n");
+ return -1;
+ }
+
+ fprintf (fp, "Key-Fpr[%lu]: ", n );
+ if (is_fpr32)
+ {
+ if (p + 32 + 2 >= pend)
+ {
+ fprintf (fp, "[Error: fingerprint data larger than blob]\n");
+ return -1;
+ }
+ kflags = get16 (p + 32 );
+ for (i=0; i < ((kflags & 0x80)?32:20); i++ )
+ fprintf (fp, "%02X", p[i]);
+ }
+ else
+ {
+ if (p + 20 + 4 >= pend)
+ {
+ fprintf (fp, "[Error: fingerprint data larger than blob]\n");
+ return -1;
+ }
+ for (i=0; i < 20; i++ )
+ fprintf (fp, "%02X", p[i]);
+ kidoff = get32 (p + 20);
+ fprintf (fp, "\nKey-Kid-Off[%lu]: %lu\n", n, kidoff );
+ fprintf (fp, "Key-Kid[%lu]: ", n );
+
+ if (p + kidoff + 8 >= pend)
+ {
+ fprintf (fp, "[Error: fingerprint data larger than blob]\n");
+ return -1;
+ }
+ for (i=0; i < 8; i++ )
+ fprintf (fp, "%02X", buffer[kidoff+i] );
+ if (p + 24 >= pend)
+ {
+ fprintf (fp, "[Error: fingerprint data larger than blob]\n");
+ return -1;
+ }
+ kflags = get16 (p + 24);
+ }
+ fprintf( fp, "\nKey-Flags[%lu]: %04lX\n", n, kflags);
+ }
+
+ /* serial number */
+ if (p + 2 >= pend)
+ {
+ fprintf (fp, "[Error: data larger than blob]\n");
+ return -1;
+ }
+ fputs ("Serial-No: ", fp);
+ nserial = get16 (p);
+ p += 2;
+ if (!nserial)
+ fputs ("none", fp);
+ else
+ {
+ if (p + nserial >= pend)
+ {
+ fprintf (fp, "[Error: data larger than blob]\n");
+ return -1;
+ }
+ for (; nserial; nserial--, p++)
+ fprintf (fp, "%02X", *p);
+ }
+ putc ('\n', fp);
+
+ /* user IDs */
+ if (p + 4 >= pend)
+ {
+ fprintf (fp, "[Error: data larger than blob]\n");
+ return -1;
+ }
+ nuids = get16 (p);
+ fprintf (fp, "Uid-Count: %lu\n", nuids );
+ uidinfolen = get16 (p + 2);
+ fprintf (fp, "Uid-Info-Length: %lu\n", uidinfolen);
+ p += 4;
+ for (n=0; n < nuids; n++, p += uidinfolen)
+ {
+ ulong uidoff, uidlen, uflags;
+
+ if (p + uidinfolen >= pend || uidinfolen < 8)
+ {
+ fprintf (fp, "[Error: data larger than blob]\n");
+ return -1;
+ }
+
+ uidoff = get32( p );
+ uidlen = get32( p+4 );
+ if (type == KEYBOX_BLOBTYPE_X509 && !n)
+ {
+ fprintf (fp, "Issuer-Off: %lu\n", uidoff );
+ fprintf (fp, "Issuer-Len: %lu\n", uidlen );
+ fprintf (fp, "Issuer: \"");
+ }
+ else if (type == KEYBOX_BLOBTYPE_X509 && n == 1)
+ {
+ fprintf (fp, "Subject-Off: %lu\n", uidoff );
+ fprintf (fp, "Subject-Len: %lu\n", uidlen );
+ fprintf (fp, "Subject: \"");
+ }
+ else
+ {
+ fprintf (fp, "Uid-Off[%lu]: %lu\n", n, uidoff );
+ fprintf (fp, "Uid-Len[%lu]: %lu\n", n, uidlen );
+ fprintf (fp, "Uid[%lu]: \"", n );
+ }
+
+ if (uidoff + uidlen > length
+ || uidoff + uidlen < uidoff
+ || uidoff + uidlen < uidlen)
+ {
+ fprintf (fp, "[Error: data larger than blob]\n");
+ return -1;
+ }
+ print_string (fp, buffer+uidoff, uidlen, '\"');
+ fputs ("\"\n", fp);
+ if (p + 8 + 2 + 1 >= pend)
+ {
+ fprintf (fp, "[Error: data larger than blob]\n");
+ return -1;
+ }
+ uflags = get16 (p + 8);
+ if (type == KEYBOX_BLOBTYPE_X509 && !n)
+ {
+ fprintf (fp, "Issuer-Flags: %04lX\n", uflags );
+ fprintf (fp, "Issuer-Validity: %d\n", p[10] );
+ }
+ else if (type == KEYBOX_BLOBTYPE_X509 && n == 1)
+ {
+ fprintf (fp, "Subject-Flags: %04lX\n", uflags );
+ fprintf (fp, "Subject-Validity: %d\n", p[10] );
+ }
+ else
+ {
+ fprintf (fp, "Uid-Flags[%lu]: %04lX\n", n, uflags );
+ fprintf (fp, "Uid-Validity[%lu]: %d\n", n, p[10] );
+ }
+ }
+
+ if (p + 2 + 2 >= pend)
+ {
+ fprintf (fp, "[Error: data larger than blob]\n");
+ return -1;
+ }
+ nsigs = get16 (p);
+ fprintf (fp, "Sig-Count: %lu\n", nsigs );
+ siginfolen = get16 (p + 2);
+ fprintf (fp, "Sig-Info-Length: %lu\n", siginfolen );
+ p += 4;
+ {
+ int in_range = 0;
+ ulong first = 0;
+
+ for (n=0; n < nsigs; n++, p += siginfolen)
+ {
+ ulong sflags;
+
+ if (p + siginfolen >= pend || siginfolen < 4)
+ {
+ fprintf (fp, "[Error: data larger than blob]\n");
+ return -1;
+ }
+ sflags = get32 (p);
+ if (!in_range && !sflags)
+ {
+ in_range = 1;
+ first = n;
+ continue;
+ }
+ if (in_range && !sflags)
+ continue;
+ if (in_range)
+ {
+ fprintf (fp, "Sig-Expire[%lu-%lu]: [not checked]\n", first, n-1);
+ in_range = 0;
+ }
+
+ fprintf (fp, "Sig-Expire[%lu]: ", n );
+ if (!sflags)
+ fputs ("[not checked]", fp);
+ else if (sflags == 1 )
+ fputs ("[missing key]", fp);
+ else if (sflags == 2 )
+ fputs ("[bad signature]", fp);
+ else if (sflags < 0x10000000)
+ fprintf (fp, "[bad flag %0lx]", sflags);
+ else if (sflags == (ulong)(-1))
+ fputs ("[good - does not expire]", fp );
+ else
+ fprintf (fp, "[good - expires at %lu]", sflags);
+ putc ('\n', fp );
+ }
+ if (in_range)
+ fprintf (fp, "Sig-Expire[%lu-%lu]: [not checked]\n", first, n-1);
+ }
+
+ if (p + 16 >= pend)
+ {
+ fprintf (fp, "[Error: data larger than blob]\n");
+ return -1;
+ }
+ fprintf (fp, "Ownertrust: %d\n", p[0] );
+ fprintf (fp, "All-Validity: %d\n", p[1] );
+ p += 4;
+ n = get32 (p);
+ p += 4;
+ fprintf (fp, "Recheck-After: %lu\n", n );
+ n = get32 (p );
+ p += 4;
+ fprintf( fp, "Latest-Timestamp: %lu\n", n );
+ n = get32 (p );
+ p += 4;
+ fprintf (fp, "Created-At: %lu\n", n );
+
+ if (p + 4 >= pend)
+ {
+ fprintf (fp, "[Error: data larger than blob]\n");
+ return -1;
+ }
+ n = get32 (p );
+ fprintf (fp, "Reserved-Space: %lu\n", n );
+
+ if (n >= 4 && unhashed >= 24)
+ {
+ n = get32 ( buffer + length - unhashed);
+ fprintf (fp, "Storage-Flags: %08lx\n", n );
+ }
+ print_checksum (buffer, length, unhashed, fp);
+ return 0;
+}
+
+
+/* Compute the SHA-1 checksum of the rawdata in BLOB and put it into
+ DIGEST. */
+static int
+hash_blob_rawdata (KEYBOXBLOB blob, unsigned char *digest)
+{
+ const unsigned char *buffer;
+ size_t n, length;
+ int type;
+ ulong rawdata_off, rawdata_len;
+
+ buffer = _keybox_get_blob_image (blob, &length);
+
+ if (length < 32)
+ return -1;
+ n = get32 (buffer);
+ if (n < length)
+ length = n; /* Blob larger than length in header - ignore the rest. */
+
+ type = buffer[4];
+ switch (type)
+ {
+ case KEYBOX_BLOBTYPE_PGP:
+ case KEYBOX_BLOBTYPE_X509:
+ break;
+
+ case KEYBOX_BLOBTYPE_EMPTY:
+ case KEYBOX_BLOBTYPE_HEADER:
+ default:
+ memset (digest, 0, 20);
+ return 0;
+ }
+
+ if (length < 40)
+ return -1;
+
+ rawdata_off = get32 (buffer + 8);
+ rawdata_len = get32 (buffer + 12);
+
+ if (rawdata_off > length || rawdata_len > length
+ || rawdata_off+rawdata_off > length)
+ return -1; /* Out of bounds. */
+
+ gcry_md_hash_buffer (GCRY_MD_SHA1, digest, buffer+rawdata_off, rawdata_len);
+ return 0;
+}
+
+
+struct file_stats_s
+{
+ unsigned long too_short_blobs;
+ unsigned long too_large_blobs;
+ unsigned long total_blob_count;
+ unsigned long empty_blob_count;
+ unsigned long header_blob_count;
+ unsigned long pgp_blob_count;
+ unsigned long x509_blob_count;
+ unsigned long unknown_blob_count;
+ unsigned long non_flagged;
+ unsigned long secret_flagged;
+ unsigned long ephemeral_flagged;
+ unsigned long skipped_long_blobs;
+};
+
+static int
+update_stats (KEYBOXBLOB blob, struct file_stats_s *s)
+{
+ const unsigned char *buffer;
+ size_t length;
+ int type;
+ unsigned long n;
+
+ buffer = _keybox_get_blob_image (blob, &length);
+ if (length < 32)
+ {
+ s->too_short_blobs++;
+ return -1;
+ }
+
+ n = get32( buffer );
+ if (n > length)
+ s->too_large_blobs++;
+ else
+ length = n; /* ignore the rest */
+
+ s->total_blob_count++;
+ type = buffer[4];
+ switch (type)
+ {
+ case KEYBOX_BLOBTYPE_EMPTY:
+ s->empty_blob_count++;
+ return 0;
+ case KEYBOX_BLOBTYPE_HEADER:
+ s->header_blob_count++;
+ return 0;
+ case KEYBOX_BLOBTYPE_PGP:
+ s->pgp_blob_count++;
+ break;
+ case KEYBOX_BLOBTYPE_X509:
+ s->x509_blob_count++;
+ break;
+ default:
+ s->unknown_blob_count++;
+ return 0;
+ }
+
+ if (length < 40)
+ {
+ s->too_short_blobs++;
+ return -1;
+ }
+
+ n = get16 (buffer + 6);
+ if (n)
+ {
+ if ((n & 1))
+ s->secret_flagged++;
+ if ((n & 2))
+ s->ephemeral_flagged++;
+ }
+ else
+ s->non_flagged++;
+
+ return 0;
+}
+
+
+
+static estream_t
+open_file (const char **filename, FILE *outfp)
+{
+ estream_t fp;
+
+ if (!*filename)
+ {
+ *filename = "-";
+ fp = es_stdin;
+ }
+ else
+ fp = es_fopen (*filename, "rb");
+ if (!fp)
+ {
+ int save_errno = errno;
+ fprintf (outfp, "can't open '%s': %s\n", *filename, strerror(errno));
+ gpg_err_set_errno (save_errno);
+ }
+ return fp;
+}
+
+
+
+int
+_keybox_dump_file (const char *filename, int stats_only, FILE *outfp)
+{
+ estream_t fp;
+ KEYBOXBLOB blob;
+ int rc;
+ unsigned long count = 0;
+ struct file_stats_s stats;
+ int skipped_deleted;
+
+ memset (&stats, 0, sizeof stats);
+
+ if (!(fp = open_file (&filename, outfp)))
+ return gpg_error_from_syserror ();
+
+ for (;;)
+ {
+ rc = _keybox_read_blob (&blob, fp, &skipped_deleted);
+ if (gpg_err_code (rc) == GPG_ERR_TOO_LARGE
+ && gpg_err_source (rc) == GPG_ERR_SOURCE_KEYBOX)
+ {
+ if (stats_only)
+ stats.skipped_long_blobs++;
+ else
+ {
+ fprintf (outfp, "BEGIN-RECORD: %lu\n", count );
+ fprintf (outfp, "# Record too large\nEND-RECORD\n");
+ }
+ count++;
+ continue;
+ }
+ if (rc)
+ break;
+
+ count += skipped_deleted;
+
+ if (stats_only)
+ {
+ stats.total_blob_count += skipped_deleted;
+ stats.empty_blob_count += skipped_deleted;
+ update_stats (blob, &stats);
+ }
+ else
+ {
+ fprintf (outfp, "BEGIN-RECORD: %lu\n", count );
+ _keybox_dump_blob (blob, outfp);
+ fprintf (outfp, "END-RECORD\n");
+ }
+ _keybox_release_blob (blob);
+ count++;
+ }
+ if (rc == -1)
+ rc = 0;
+ if (rc)
+ fprintf (outfp, "# error reading '%s': %s\n", filename, gpg_strerror (rc));
+
+ if (fp != es_stdin)
+ es_fclose (fp);
+
+ if (stats_only)
+ {
+ fprintf (outfp,
+ "Total number of blobs: %8lu\n"
+ " header: %8lu\n"
+ " empty: %8lu\n"
+ " openpgp: %8lu\n"
+ " x509: %8lu\n"
+ " non flagged: %8lu\n"
+ " secret flagged: %8lu\n"
+ " ephemeral flagged: %8lu\n",
+ stats.total_blob_count,
+ stats.header_blob_count,
+ stats.empty_blob_count,
+ stats.pgp_blob_count,
+ stats.x509_blob_count,
+ stats.non_flagged,
+ stats.secret_flagged,
+ stats.ephemeral_flagged);
+ if (stats.skipped_long_blobs)
+ fprintf (outfp, " skipped long blobs: %8lu\n",
+ stats.skipped_long_blobs);
+ if (stats.unknown_blob_count)
+ fprintf (outfp, " unknown blob types: %8lu\n",
+ stats.unknown_blob_count);
+ if (stats.too_short_blobs)
+ fprintf (outfp, " too short blobs: %8lu (error)\n",
+ stats.too_short_blobs);
+ if (stats.too_large_blobs)
+ fprintf (outfp, " too large blobs: %8lu (error)\n",
+ stats.too_large_blobs);
+ }
+
+ return rc;
+}
+
+
+
+struct dupitem_s
+{
+ unsigned long recno;
+ unsigned char digest[20];
+};
+
+
+static int
+cmp_dupitems (const void *arg_a, const void *arg_b)
+{
+ struct dupitem_s *a = (struct dupitem_s *)arg_a;
+ struct dupitem_s *b = (struct dupitem_s *)arg_b;
+
+ return memcmp (a->digest, b->digest, 20);
+}
+
+
+int
+_keybox_dump_find_dups (const char *filename, int print_them, FILE *outfp)
+{
+ estream_t fp;
+ KEYBOXBLOB blob;
+ int rc;
+ unsigned long recno = 0;
+ unsigned char zerodigest[20];
+ struct dupitem_s *dupitems;
+ size_t dupitems_size, dupitems_count, lastn, n;
+ char fprbuf[3*20+1];
+
+ (void)print_them;
+
+ memset (zerodigest, 0, sizeof zerodigest);
+
+ if (!(fp = open_file (&filename, outfp)))
+ return gpg_error_from_syserror ();
+
+ dupitems_size = 1000;
+ dupitems = malloc (dupitems_size * sizeof *dupitems);
+ if (!dupitems)
+ {
+ gpg_error_t tmperr = gpg_error_from_syserror ();
+ fprintf (outfp, "error allocating array for '%s': %s\n",
+ filename, strerror(errno));
+ return tmperr;
+ }
+ dupitems_count = 0;
+
+ while ( !(rc = _keybox_read_blob (&blob, fp, NULL)) )
+ {
+ unsigned char digest[20];
+
+ if (hash_blob_rawdata (blob, digest))
+ fprintf (outfp, "error in blob %ld of '%s'\n", recno, filename);
+ else if (memcmp (digest, zerodigest, 20))
+ {
+ if (dupitems_count >= dupitems_size)
+ {
+ struct dupitem_s *tmp;
+
+ dupitems_size += 1000;
+ tmp = realloc (dupitems, dupitems_size * sizeof *dupitems);
+ if (!tmp)
+ {
+ gpg_error_t tmperr = gpg_error_from_syserror ();
+ fprintf (outfp, "error reallocating array for '%s': %s\n",
+ filename, strerror(errno));
+ free (dupitems);
+ return tmperr;
+ }
+ dupitems = tmp;
+ }
+ dupitems[dupitems_count].recno = recno;
+ memcpy (dupitems[dupitems_count].digest, digest, 20);
+ dupitems_count++;
+ }
+ _keybox_release_blob (blob);
+ recno++;
+ }
+ if (rc == -1)
+ rc = 0;
+ if (rc)
+ fprintf (outfp, "error reading '%s': %s\n", filename, gpg_strerror (rc));
+ if (fp != es_stdin)
+ es_fclose (fp);
+
+ qsort (dupitems, dupitems_count, sizeof *dupitems, cmp_dupitems);
+
+ for (lastn=0, n=1; n < dupitems_count; lastn=n, n++)
+ {
+ if (!memcmp (dupitems[lastn].digest, dupitems[n].digest, 20))
+ {
+ bin2hexcolon (dupitems[lastn].digest, 20, fprbuf);
+ fprintf (outfp, "fpr=%s recno=%lu", fprbuf, dupitems[lastn].recno);
+ do
+ fprintf (outfp, " %lu", dupitems[n].recno);
+ while (++n < dupitems_count
+ && !memcmp (dupitems[lastn].digest, dupitems[n].digest, 20));
+ putc ('\n', outfp);
+ n--;
+ }
+ }
+
+ free (dupitems);
+
+ return rc;
+}
+
+
+/* Print records with record numbers FROM to TO to OUTFP. */
+int
+_keybox_dump_cut_records (const char *filename, unsigned long from,
+ unsigned long to, FILE *outfp)
+{
+ estream_t fp;
+ KEYBOXBLOB blob;
+ int rc;
+ unsigned long recno = 0;
+
+ if (!(fp = open_file (&filename, stderr)))
+ return gpg_error_from_syserror ();
+
+ while ( !(rc = _keybox_read_blob (&blob, fp, NULL)) )
+ {
+ if (recno > to)
+ break; /* Ready. */
+ if (recno >= from)
+ {
+ if ((rc = _keybox_write_blob (blob, NULL, outfp)))
+ {
+ fprintf (stderr, "error writing output: %s\n",
+ gpg_strerror (rc));
+ goto leave;
+ }
+ }
+ _keybox_release_blob (blob);
+ recno++;
+ }
+ if (rc == -1)
+ rc = 0;
+ if (rc)
+ fprintf (stderr, "error reading '%s': %s\n", filename, gpg_strerror (rc));
+ leave:
+ if (fp != es_stdin)
+ es_fclose (fp);
+ return rc;
+}