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/* edit.c - Key edit function.
Copyright (C) 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., 51 Franklin Street, Fifth Floor, Boston, MA
02111-1307, USA. */
#if HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdlib.h>
#include "gpgme.h"
#include "context.h"
#include "ops.h"
typedef struct
{
/* The user callback function and its hook value. */
gpgme_edit_cb_t fnc;
void *fnc_value;
} *op_data_t;
static gpgme_error_t
edit_status_handler (void *priv, gpgme_status_code_t status, char *args)
{
gpgme_ctx_t ctx = (gpgme_ctx_t) priv;
gpgme_error_t err;
void *hook;
op_data_t opd;
err = _gpgme_passphrase_status_handler (priv, status, args);
if (err)
return err;
err = _gpgme_progress_status_handler (priv, status, args);
if (err)
return err;
err = _gpgme_op_data_lookup (ctx, OPDATA_EDIT, &hook, -1, NULL);
opd = hook;
if (err)
return err;
return (*opd->fnc) (opd->fnc_value, status, args, -1);
}
static gpgme_error_t
command_handler (void *priv, gpgme_status_code_t status, const char *args,
int fd, int *processed_r)
{
gpgme_ctx_t ctx = (gpgme_ctx_t) priv;
gpgme_error_t err;
int processed = 0;
if (ctx->passphrase_cb)
{
err = _gpgme_passphrase_command_handler (ctx, status, args,
fd, &processed);
if (err)
return err;
}
if (!processed)
{
void *hook;
op_data_t opd;
err = _gpgme_op_data_lookup (ctx, OPDATA_EDIT, &hook, -1, NULL);
opd = hook;
if (err)
return err;
/* FIXME: We expect the user to handle _all_ status codes.
Later, we may fix the callback interface to allow the user
indicate if it processed the status code or not. */
*processed_r = 1;
return (*opd->fnc) (opd->fnc_value, status, args, fd);
}
*processed_r = processed;
return 0;
}
static gpgme_error_t
edit_start (gpgme_ctx_t ctx, int synchronous, int type, gpgme_key_t key,
gpgme_edit_cb_t fnc, void *fnc_value, gpgme_data_t out)
{
gpgme_error_t err;
void *hook;
op_data_t opd;
err = _gpgme_op_reset (ctx, synchronous);
if (err)
return err;
if (!fnc || !out)
return gpg_error (GPG_ERR_INV_VALUE);
err = _gpgme_op_data_lookup (ctx, OPDATA_EDIT, &hook, sizeof (*opd), NULL);
opd = hook;
if (err)
return err;
opd->fnc = fnc;
opd->fnc_value = fnc_value;
err = _gpgme_engine_set_command_handler (ctx->engine, command_handler,
ctx, out);
if (err)
return err;
_gpgme_engine_set_status_handler (ctx->engine, edit_status_handler, ctx);
return _gpgme_engine_op_edit (ctx->engine, type, key, out, ctx);
}
gpgme_error_t
gpgme_op_edit_start (gpgme_ctx_t ctx, gpgme_key_t key,
gpgme_edit_cb_t fnc, void *fnc_value, gpgme_data_t out)
{
return edit_start (ctx, 0, 0, key, fnc, fnc_value, out);
}
/* Edit the key KEY. Send status and command requests to FNC and
output of edit commands to OUT. */
gpgme_error_t
gpgme_op_edit (gpgme_ctx_t ctx, gpgme_key_t key,
gpgme_edit_cb_t fnc, void *fnc_value, gpgme_data_t out)
{
gpgme_error_t err = edit_start (ctx, 1, 0, key, fnc, fnc_value, out);
if (!err)
err = _gpgme_wait_one (ctx);
return err;
}
gpgme_error_t
gpgme_op_card_edit_start (gpgme_ctx_t ctx, gpgme_key_t key,
gpgme_edit_cb_t fnc, void *fnc_value,
gpgme_data_t out)
{
return edit_start (ctx, 0, 1, key, fnc, fnc_value, out);
}
/* Edit the card for the key KEY. Send status and command requests to
FNC and output of edit commands to OUT. */
gpgme_error_t
gpgme_op_card_edit (gpgme_ctx_t ctx, gpgme_key_t key,
gpgme_edit_cb_t fnc, void *fnc_value, gpgme_data_t out)
{
gpgme_error_t err = edit_start (ctx, 1, 1, key, fnc, fnc_value, out);
if (!err)
err = _gpgme_wait_one (ctx);
return err;
}
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