/* export.c - Export a key.
   Copyright (C) 2000 Werner Koch (dd9jn)
   Copyright (C) 2001, 2002, 2003, 2004 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 Lesser General Public License as
   published by the Free Software Foundation; either version 2.1 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
   Lesser General Public License for more details.
   
   You should have received a copy of the GNU Lesser 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.  */

#if HAVE_CONFIG_H
#include <config.h>
#endif

#include "gpgme.h"
#include "context.h"
#include "ops.h"


static gpgme_error_t
export_status_handler (void *priv, gpgme_status_code_t code, char *args)
{
  return 0;
}


static gpgme_error_t
export_start (gpgme_ctx_t ctx, int synchronous, const char *pattern,
	      unsigned int reserved, gpgme_data_t keydata)
{
  gpgme_error_t err;

  if (!keydata)
    return gpg_error (GPG_ERR_INV_VALUE);

  err = _gpgme_op_reset (ctx, synchronous);
  if (err)
    return err;

  _gpgme_engine_set_status_handler (ctx->engine, export_status_handler, ctx);

  return _gpgme_engine_op_export (ctx->engine, pattern, reserved, keydata,
				  ctx->use_armor);
}


/* Export the keys listed in RECP into KEYDATA.  */
gpgme_error_t
gpgme_op_export_start (gpgme_ctx_t ctx, const char *pattern,
		       unsigned int reserved, gpgme_data_t keydata)
{
  return export_start (ctx, 0, pattern, reserved, keydata);
}


/* Export the keys listed in RECP into KEYDATA.  */
gpgme_error_t
gpgme_op_export (gpgme_ctx_t ctx, const char *pattern, unsigned int reserved,
		 gpgme_data_t keydata)
{
  gpgme_error_t err = export_start (ctx, 1, pattern, reserved, keydata);
  if (!err)
    err = _gpgme_wait_one (ctx);
  return err;
}


static gpgme_error_t
export_ext_start (gpgme_ctx_t ctx, int synchronous, const char *pattern[],
		  unsigned int reserved, gpgme_data_t keydata)
{
  gpgme_error_t err;

  if (!keydata)
    return gpg_error (GPG_ERR_INV_VALUE);

  err = _gpgme_op_reset (ctx, synchronous);
  if (err)
    return err;

  _gpgme_engine_set_status_handler (ctx->engine, export_status_handler, ctx);

  return _gpgme_engine_op_export_ext (ctx->engine, pattern, reserved, keydata,
				      ctx->use_armor);
}


/* Export the keys listed in RECP into KEYDATA.  */
gpgme_error_t
gpgme_op_export_ext_start (gpgme_ctx_t ctx, const char *pattern[],
			   unsigned int reserved, gpgme_data_t keydata)
{
  return export_ext_start (ctx, 0, pattern, reserved, keydata);
}


/* Export the keys listed in RECP into KEYDATA.  */
gpgme_error_t
gpgme_op_export_ext (gpgme_ctx_t ctx, const char *pattern[],
		     unsigned int reserved, gpgme_data_t keydata)
{
  gpgme_error_t err = export_ext_start (ctx, 1, pattern, reserved, keydata);
  if (!err)
    err = _gpgme_wait_one (ctx);
  return err;
}