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c0c2c58054
to libgcrypt functions, using shared error codes from libgpg-error, replacing the old functions we used to have in ../util by those in ../jnlib and ../common, renaming the malloc functions and a couple of types. Note, that not all changes are listed below becuause they are too similar and done at far too many places. As of today the code builds using the current libgcrypt from CVS but it is very unlikely that it actually works.
143 lines
3.5 KiB
C
143 lines
3.5 KiB
C
/* decrypt.c - verify signed data
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* Copyright (C) 1998,1999,2000,2001,2002,2003 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 <assert.h>
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#include "options.h"
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#include "packet.h"
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#include "errors.h"
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#include "iobuf.h"
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#include "keydb.h"
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#include "memory.h"
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#include "util.h"
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#include "main.h"
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#include "status.h"
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#include "i18n.h"
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/****************
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* Assume that the input is an encrypted message and decrypt
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* (and if signed, verify the signature on) it.
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* This command differs from the default operation, as it never
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* writes to the filename which is included in the file and it
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* rejects files which don't begin with an encrypted message.
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*/
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int
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decrypt_message( const char *filename )
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{
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iobuf_t fp;
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armor_filter_context_t afx;
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progress_filter_context_t pfx;
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int rc;
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int no_out=0;
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/* open the message file */
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fp = iobuf_open(filename);
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if( !fp ) {
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rc = gpg_error_from_errno (errno);
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log_error(_("can't open `%s'\n"), print_fname_stdin(filename));
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return rc;
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}
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handle_progress (&pfx, fp, filename);
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if( !opt.no_armor ) {
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if( use_armor_filter( fp ) ) {
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memset( &afx, 0, sizeof afx);
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iobuf_push_filter( fp, armor_filter, &afx );
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}
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}
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if( !opt.outfile ) {
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no_out = 1;
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opt.outfile = "-";
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}
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rc = proc_encryption_packets( NULL, fp );
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if( no_out )
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opt.outfile = NULL;
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iobuf_close(fp);
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return rc;
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}
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void
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decrypt_messages(int nfiles, char **files)
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{
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iobuf_t fp;
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armor_filter_context_t afx;
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progress_filter_context_t pfx;
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char *p, *output = NULL;
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int rc = 0;
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if (opt.outfile)
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{
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log_error(_("--output doesn't work for this command\n"));
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return;
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}
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while (nfiles--)
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{
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print_file_status(STATUS_FILE_START, *files, 3);
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output = make_outfile_name(*files);
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if (!output)
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goto next_file;
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fp = iobuf_open(*files);
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if (!fp)
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{
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log_error(_("can't open `%s'\n"), print_fname_stdin(*files));
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goto next_file;
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}
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handle_progress (&pfx, fp, *files);
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if (!opt.no_armor)
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{
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if (use_armor_filter(fp))
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{
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memset(&afx, 0, sizeof afx);
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iobuf_push_filter(fp, armor_filter, &afx);
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}
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}
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rc = proc_packets(NULL, fp);
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iobuf_close(fp);
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if (rc)
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log_error("%s: decryption failed: %s\n", print_fname_stdin(*files),
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gpg_strerror (rc));
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p = get_last_passphrase();
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set_next_passphrase(p);
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xfree (p);
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next_file:
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/* Note that we emit file_done even after an error. */
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write_status( STATUS_FILE_DONE );
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xfree (output);
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files++;
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}
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set_next_passphrase(NULL);
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}
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