This commit was manufactured by cvs2svn to create branch

'GNUPG-1-9-BRANCH'.

1 files changed, 141 insertions, 0 deletions

diff --git a/g10/decrypt.c b/g10/decrypt.c
new file mode 100644
index 000000000..df778d1ad
--- /dev/null
+++ b/g10/decrypt.c
@@ -0,0 +1,141 @@
+/* decrypt.c - verify signed data
+ * Copyright (C) 1998,1999,2000,2001,2002,2003 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 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 "iobuf.h"
+#include "keydb.h"
+#include "memory.h"
+#include "util.h"
+#include "main.h"
+#include "status.h"
+#include "i18n.h"
+
+
+
+/****************
+ * Assume that the input is an encrypted message and decrypt
+ * (and if signed, verify the signature on) it.
+ * This command differs from the default operation, as it never
+ * writes to the filename which is included in the file and it
+ * rejects files which don't begin with an encrypted message.
+ */
+
+int
+decrypt_message( const char *filename )
+{
+    IOBUF fp;
+    armor_filter_context_t afx;
+    progress_filter_context_t pfx;
+    int rc;
+    int no_out=0;
+
+    /* open the message file */
+    fp = iobuf_open(filename);
+    if( !fp ) {
+	log_error(_("can't open `%s'\n"), print_fname_stdin(filename));
+	return G10ERR_OPEN_FILE;
+    }
+
+    handle_progress (&pfx, fp, filename);
+
+    if( !opt.no_armor ) {
+	if( use_armor_filter( fp ) ) {
+	    memset( &afx, 0, sizeof afx);
+	    iobuf_push_filter( fp, armor_filter, &afx );
+	}
+    }
+
+    if( !opt.outfile ) {
+	no_out = 1;
+	opt.outfile = "-";
+    }
+    rc = proc_encryption_packets( NULL, fp );
+    if( no_out )
+       opt.outfile = NULL;
+    iobuf_close(fp);
+    return rc;
+}
+
+void
+decrypt_messages(int nfiles, char **files)
+{
+  IOBUF fp;
+  armor_filter_context_t afx;  
+  progress_filter_context_t pfx;
+  char *p, *output = NULL;
+  int rc = 0;
+  
+  if (opt.outfile)
+    {
+      log_error(_("--output doesn't work for this command\n"));
+      return;
+        
+    }
+
+  while (nfiles--)
+    {
+      print_file_status(STATUS_FILE_START, *files, 3);      
+      output = make_outfile_name(*files);
+      if (!output)
+        goto next_file;
+      fp = iobuf_open(*files);
+      if (!fp)
+        {
+          log_error(_("can't open `%s'\n"), print_fname_stdin(*files));
+          goto next_file;
+        }
+
+      handle_progress (&pfx, fp, *files);
+
+      if (!opt.no_armor)
+        {
+          if (use_armor_filter(fp))
+            {
+              memset(&afx, 0, sizeof afx);
+              iobuf_push_filter(fp, armor_filter, &afx);
+            }
+        }
+      rc = proc_packets(NULL, fp);
+      iobuf_close(fp);
+      if (rc)
+        log_error("%s: decryption failed: %s\n", print_fname_stdin(*files),
+                  g10_errstr(rc));
+      p = get_last_passphrase();
+      set_next_passphrase(p);
+      m_free (p);
+
+    next_file:
+      /* Note that we emit file_done even after an error. */
+      write_status( STATUS_FILE_DONE );
+      m_free(output);
+      files++;
+    }
+  set_next_passphrase(NULL);  
+}
+