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/* 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 <stdlib.h>
#include <string.h>
#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,
gpgme_export_mode_t mode, gpgme_data_t keydata)
{
gpgme_error_t err;
if ((mode & ~(GPGME_EXPORT_MODE_EXTERN)))
return gpg_error (GPG_ERR_INV_VALUE); /* Invalid flags in MODE. */
if ((mode & GPGME_EXPORT_MODE_EXTERN))
{
if (keydata)
return gpg_error (GPG_ERR_INV_VALUE);
}
else
{
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, mode, keydata,
ctx->use_armor);
}
/* Export the keys listed in PATTERN into KEYDATA. */
gpgme_error_t
gpgme_op_export_start (gpgme_ctx_t ctx, const char *pattern,
gpgme_export_mode_t mode, gpgme_data_t keydata)
{
return export_start (ctx, 0, pattern, mode, keydata);
}
/* Export the keys listed in PATTERN into KEYDATA. */
gpgme_error_t
gpgme_op_export (gpgme_ctx_t ctx, const char *pattern,
gpgme_export_mode_t mode, gpgme_data_t keydata)
{
gpgme_error_t err = export_start (ctx, 1, pattern, mode, 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[],
gpgme_export_mode_t mode, gpgme_data_t keydata)
{
gpgme_error_t err;
if ((mode & ~(GPGME_EXPORT_MODE_EXTERN)))
return gpg_error (GPG_ERR_INV_VALUE); /* Invalid flags in MODE. */
if ((mode & GPGME_EXPORT_MODE_EXTERN))
{
if (keydata)
return gpg_error (GPG_ERR_INV_VALUE);
}
else
{
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, mode, keydata,
ctx->use_armor);
}
/* Export the keys listed in PATTERN into KEYDATA. */
gpgme_error_t
gpgme_op_export_ext_start (gpgme_ctx_t ctx, const char *pattern[],
gpgme_export_mode_t mode, gpgme_data_t keydata)
{
return export_ext_start (ctx, 0, pattern, mode, keydata);
}
/* Export the keys listed in PATTERN into KEYDATA. */
gpgme_error_t
gpgme_op_export_ext (gpgme_ctx_t ctx, const char *pattern[],
gpgme_export_mode_t mode, gpgme_data_t keydata)
{
gpgme_error_t err = export_ext_start (ctx, 1, pattern, mode, keydata);
if (!err)
err = _gpgme_wait_one (ctx);
return err;
}
static gpgme_error_t
export_keys_start (gpgme_ctx_t ctx, int synchronous, gpgme_key_t keys[],
gpgme_export_mode_t mode, gpgme_data_t keydata)
{
gpgme_error_t err;
int nkeys, idx;
char **pattern;
if (!keys)
return gpg_error (GPG_ERR_INV_VALUE);
/* Create a list of pattern from the keys. */
for (idx=nkeys=0; keys[idx]; idx++)
if (keys[idx]->protocol == ctx->protocol)
nkeys++;
if (!nkeys)
return gpg_error (GPG_ERR_NO_DATA);
pattern = calloc (nkeys+1, sizeof *pattern);
if (!pattern)
return gpg_error_from_syserror ();
for (idx=nkeys=0; keys[idx]; idx++)
if (keys[idx]->protocol == ctx->protocol
&& keys[idx]->subkeys
&& keys[idx]->subkeys->fpr
&& *keys[idx]->subkeys->fpr)
{
pattern[nkeys] = strdup (keys[idx]->subkeys->fpr);
if (!pattern[nkeys])
{
err = gpg_error_from_syserror ();
goto leave;
}
nkeys++;
}
/* Pass on to the regular function. */
err = export_ext_start (ctx, synchronous, (const char**)pattern,
mode, keydata);
leave:
for (idx=0; pattern[idx]; idx++)
free (pattern[idx]);
free (pattern);
return err;
}
/* Export the keys from the array KEYS into KEYDATA. Only keys of the
current protocol are exported and only those which have a
fingerprint set; that is keys received with some external search
methods are silently skipped. */
gpgme_error_t
gpgme_op_export_keys_start (gpgme_ctx_t ctx,
gpgme_key_t keys[],
gpgme_export_mode_t mode,
gpgme_data_t keydata)
{
return export_keys_start (ctx, 0, keys, mode, keydata);
}
gpgme_error_t
gpgme_op_export_keys (gpgme_ctx_t ctx,
gpgme_key_t keys[],
gpgme_export_mode_t mode,
gpgme_data_t keydata)
{
gpgme_error_t err = export_keys_start (ctx, 1, keys, mode, keydata);
if (!err)
err = _gpgme_wait_one (ctx);
return err;
}
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