mirror of git://git.gnupg.org/gnupg.git
114 lines
2.6 KiB
C
114 lines
2.6 KiB
C
/* keybox-file.c - file oeprations
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* Copyright (C) 2001 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 <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "keybox-defs.h"
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int
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_keybox_read_blob (KEYBOXBLOB *r_blob, FILE *fp)
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{
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char *image;
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size_t imagelen = 0;
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int c1, c2, c3, c4;
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int rc;
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*r_blob = NULL;
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if ((c1 = getc (fp)) == EOF
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|| (c2 = getc (fp)) == EOF
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|| (c3 = getc (fp)) == EOF
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|| (c4 = getc (fp)) == EOF ) {
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if ( c1 == EOF && !ferror (fp) )
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return -1; /* eof */
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return KEYBOX_Read_Error;
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}
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imagelen = (c1 << 24) | (c2 << 16) | (c3 << 8 ) | c4;
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if (imagelen > 500000) /* sanity check */
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return KEYBOX_Blob_Too_Large;
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if (imagelen < 4)
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return KEYBOX_Blob_Too_Short;
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image = xtrymalloc (imagelen);
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if (!image)
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return KEYBOX_Out_Of_Core;
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image[0] = c1; image[1] = c2; image[2] = c3; image[3] = c4;
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if (fread (image+4, imagelen-4, 1, fp) != 1)
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{
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return KEYBOX_Read_Error;
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}
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rc = _keybox_new_blob (r_blob, image, imagelen);
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if (rc)
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xfree (image);
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return rc;
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}
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void
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export_as_kbxfile(void)
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{
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#if 0
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KBPOS kbpos;
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KBNODE keyblock = NULL;
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int rc=0;
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rc = enum_keyblocks_begin( &kbpos, 0 );
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if( rc ) {
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if( rc != -1 )
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log_error("enum_keyblocks(open) failed: %s\n", gpg_errstr(rc) );
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goto leave;
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}
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while( !(rc = enum_keyblocks_next( kbpos, 1, &keyblock )) ) {
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KBXBLOB blob;
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const char *p;
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size_t n;
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merge_keys_and_selfsig( keyblock );
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rc = kbx_create_blob ( &blob, keyblock );
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if( rc ) {
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log_error("kbx_create_blob failed: %s\n", gpg_errstr(rc) );
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goto leave;
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}
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p = kbx_get_blob_image ( blob, &n );
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fwrite( p, n, 1, stdout );
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kbx_release_blob ( blob );
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}
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if( rc && rc != -1 )
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log_error("enum_keyblocks(read) failed: %s\n", gpg_errstr(rc));
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leave:
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enum_keyblocks_end( kbpos );
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release_kbnode( keyblock );
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#endif
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}
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