1 files changed, 150 insertions, 0 deletions
diff --git a/gpgme/encrypt-sign.c b/gpgme/encrypt-sign.c
new file mode 100644
index 00000000..1c8e596d
--- /dev/null
+++ b/gpgme/encrypt-sign.c
@@ -0,0 +1,150 @@
+/* encrypt-sign.c -  encrypt and verify functions
+ *	Copyright (C) 2000 Werner Koch (dd9jn)
+ *      Copyright (C) 2001, 2002 g10 Code GmbH
+ *
+ * This file is part of GPGME.
+ *
+ * GPGME 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.
+ *
+ * GPGME 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 <assert.h>
+
+#include "util.h"
+#include "context.h"
+#include "ops.h"
+
+
+static void
+encrypt_sign_status_handler (GpgmeCtx ctx, GpgStatusCode code, char *args)
+{
+  char *encrypt_info = 0;
+  int encrypt_info_len;
+
+  _gpgme_encrypt_status_handler (ctx, code, args);
+
+  if (code == STATUS_EOF)
+    {
+      encrypt_info = gpgme_data_release_and_get_mem (ctx->op_info,
+						     &encrypt_info_len);
+      ctx->op_info = NULL;
+    }
+  _gpgme_sign_status_handler (ctx, code, args);
+  if (code == STATUS_EOF && encrypt_info)
+    _gpgme_data_append (ctx->op_info, encrypt_info, encrypt_info_len);
+}
+
+
+GpgmeError
+gpgme_op_encrypt_sign_start (GpgmeCtx ctx, GpgmeRecipients recp,
+			     GpgmeData plain, GpgmeData cipher)
+{
+  int err = 0;
+
+  fail_on_pending_request (ctx);
+  ctx->pending = 1;
+
+  _gpgme_release_result (ctx);
+
+  /* Do some checks.  */
+  if (!gpgme_recipients_count (recp))
+    {
+      /* FIXME: In this case we should do symmetric encryption.  */
+      err = mk_error (No_Recipients);
+      goto leave;
+    }
+
+  /* Create an engine object.  */
+  _gpgme_engine_release (ctx->engine);
+  ctx->engine = NULL;
+  err = _gpgme_engine_new (ctx->use_cms ? GPGME_PROTOCOL_CMS
+			   : GPGME_PROTOCOL_OpenPGP, &ctx->engine);
+  if (err)
+    goto leave;
+
+  err = _gpgme_passphrase_start (ctx);
+  if (err)
+    goto leave;
+
+  _gpgme_engine_set_status_handler (ctx->engine,
+				    encrypt_sign_status_handler, ctx);
+  _gpgme_engine_set_verbosity (ctx->engine, ctx->verbosity);
+
+  /* Check the supplied data */
+  if (gpgme_data_get_type (plain) == GPGME_DATA_TYPE_NONE)
+    {
+      err = mk_error (No_Data);
+      goto leave;
+    }
+  _gpgme_data_set_mode (plain, GPGME_DATA_MODE_OUT);
+  if (!cipher || gpgme_data_get_type (cipher) != GPGME_DATA_TYPE_NONE)
+    {
+      err = mk_error (Invalid_Value);
+      goto leave;
+    }
+  _gpgme_data_set_mode (cipher, GPGME_DATA_MODE_IN);
+
+  err = _gpgme_engine_op_encrypt_sign (ctx->engine, recp, plain, cipher,
+				       ctx->use_armor, ctx /* FIXME */);
+
+  if (!err)	/* And kick off the process.  */
+    err = _gpgme_engine_start (ctx->engine, ctx);
+
+ leave:
+  if (err)
+    {
+      ctx->pending = 0; 
+      _gpgme_engine_release (ctx->engine);
+      ctx->engine = NULL;
+    }
+  return err;
+}
+
+
+/**
+ * gpgme_op_encrypt_sign:
+ * @ctx: The context
+ * @recp: The set of recipients
+ * @plain: plaintext input
+ * @cipher: signed ciphertext
+ * 
+ * This function encrypts @plain for all recipients in recp, signs it,
+ * and returns the ciphertext in @out.  The function does wait for the
+ * result.
+ * 
+ * Return value:  0 on success or an errorcode. 
+ **/
+GpgmeError
+gpgme_op_encrypt_sign (GpgmeCtx ctx, GpgmeRecipients recp,
+		       GpgmeData plain, GpgmeData cipher)
+{
+  GpgmeError err = gpgme_op_encrypt_sign_start (ctx, recp, plain, cipher);
+
+  if (!err)
+    {
+      gpgme_wait (ctx, &err, 1);
+      /* Old gpg versions don't return status info for invalid
+         recipients, so we simply check whether we got any output at
+         all, and if not we assume that we don't have valid
+         recipients.  */
+      if (!ctx->error && gpgme_data_get_type (cipher) == GPGME_DATA_TYPE_NONE)
+        ctx->error = mk_error (No_Recipients);
+      err = ctx->error;
+    }
+  return err;
+}