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/* setownertrust.c - Set ownertrust helpers.
* Copyright (C) 2024 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, see <https://gnu.org/licenses/>.
* SPDX-License-Identifier: LGPL-2.1-or-later
*/
#if HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdlib.h>
#include "gpgme.h"
#include "debug.h"
#include "context.h"
#include "ops.h"
typedef struct
{
/* The error code from a FAILURE status line or 0. */
gpg_error_t failure_code;
/* The error code from an ERROR status line or 0. */
gpg_error_t error_code;
} *op_data_t;
/* Parse an error status line. Return the error location and the
error code. The function may modify ARGS. */
static char *
parse_error (char *args, gpg_error_t *r_err)
{
char *where = strchr (args, ' ');
char *which;
if (where)
{
*where = '\0';
which = where + 1;
where = strchr (which, ' ');
if (where)
*where = '\0';
where = args;
}
else
{
*r_err = trace_gpg_error (GPG_ERR_INV_ENGINE);
return NULL;
}
*r_err = atoi (which);
return where;
}
static gpgme_error_t
setownertrust_status_handler (void *priv, gpgme_status_code_t code, char *args)
{
gpgme_ctx_t ctx = (gpgme_ctx_t) priv;
gpgme_error_t err;
void *hook;
op_data_t opd;
char *loc;
err = _gpgme_op_data_lookup (ctx, OPDATA_SETOWNERTRUST, &hook, -1, NULL);
opd = hook;
if (err)
return err;
switch (code)
{
case GPGME_STATUS_ERROR:
loc = parse_error (args, &err);
if (!loc)
return err;
if (!opd->error_code)
opd->error_code = err;
break;
case GPGME_STATUS_FAILURE:
if (!opd->failure_code
|| gpg_err_code (opd->failure_code) == GPG_ERR_GENERAL)
opd->failure_code = _gpgme_parse_failure (args);
break;
case GPGME_STATUS_EOF:
if (opd->error_code)
err = opd->error_code;
else if (opd->failure_code)
err = opd->failure_code;
break;
default:
break;
}
return err;
}
/* Set the ownertrust of a key or enable/disable a key. See
--quick-set-ownertrust in the gnupg documentation. */
static gpg_error_t
setownertrust (gpgme_ctx_t ctx, int synchronous,
gpgme_key_t key,
const char *value)
{
gpgme_error_t err;
void *hook;
op_data_t opd;
TRACE_BEG (DEBUG_CTX, "gpgme_op_setownertrust", ctx,
"%d key=%p value: %s",
synchronous, key, value);
if (!ctx)
return TRACE_ERR (gpg_error (GPG_ERR_INV_VALUE));
if (ctx->protocol != GPGME_PROTOCOL_OPENPGP)
return TRACE_ERR (gpgme_error (GPG_ERR_UNSUPPORTED_PROTOCOL));
if (!key)
return TRACE_ERR (gpg_error (GPG_ERR_INV_VALUE));
err = _gpgme_op_reset (ctx, synchronous);
if (err)
return err;
err = _gpgme_op_data_lookup (ctx, OPDATA_SETOWNERTRUST, &hook, sizeof (*opd),
NULL);
opd = hook;
if (err)
return err;
_gpgme_engine_set_status_handler (ctx->engine, setownertrust_status_handler,
ctx);
err = _gpgme_engine_op_setownertrust (ctx->engine, key, value);
if (synchronous && !err)
err = _gpgme_wait_one (ctx);
return TRACE_ERR (err);
}
/* See setownertrust. */
gpgme_error_t
gpgme_op_setownertrust_start (gpgme_ctx_t ctx,
gpgme_key_t key,
const char *value)
{
return setownertrust (ctx, 0, key, value);
}
/* See setownertrust. This is the synchronous variant. */
gpgme_error_t
gpgme_op_setownertrust (gpgme_ctx_t ctx,
gpgme_key_t key,
const char *value)
{
return setownertrust (ctx, 1, key, value);
}
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