123 lines
3.0 KiB
C
123 lines
3.0 KiB
C
/* queryswdb.c - Access to the SWDB file
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* Copyright (C) 2016 g10 Code GmbH
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*
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* This file is part of GPGME.
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*
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* GPGME is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation; either version 2.1 of
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* the License, or (at your option) any later version.
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*
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* GPGME is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this program; if not, see <https://gnu.org/licenses/>.
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* SPDX-License-Identifier: LGPL-2.1-or-later
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*/
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#if HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <stdlib.h>
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#include <assert.h>
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#include "gpgme.h"
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#include "debug.h"
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#include "context.h"
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#include "ops.h"
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typedef struct
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{
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struct _gpgme_op_query_swdb_result result;
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} *op_data_t;
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static void
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release_op_data (void *hook)
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{
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op_data_t opd = (op_data_t) hook;
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gpgme_query_swdb_result_t result = &opd->result;
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assert (!result->next);
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free (result->name);
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free (result->iversion);
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free (result->version);
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}
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gpgme_query_swdb_result_t
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gpgme_op_query_swdb_result (gpgme_ctx_t ctx)
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{
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void *hook;
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op_data_t opd;
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gpgme_error_t err;
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TRACE_BEG (DEBUG_CTX, "gpgme_op_query_swdb_result", ctx, "");
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err = _gpgme_op_data_lookup (ctx, OPDATA_QUERY_SWDB, &hook, -1, NULL);
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opd = hook;
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if (err || !opd)
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{
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TRACE_SUC ("result=(null)");
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return NULL;
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}
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TRACE_SUC ("result=%p", &opd->result);
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return &opd->result;
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}
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/* Query the swdb for software package NAME and check against the
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* installed version given by IVERSION. If IVERSION is NULL a check
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* is only done if GPGME can figure out the version by itself
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* (e.g. for "gpgme" or "gnupg"). RESERVED should be 0.
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*
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* Note that we only implemented the synchronous variant of this
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* function but the API is prepared for an asynchronous variant.
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*/
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gpgme_error_t
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gpgme_op_query_swdb (gpgme_ctx_t ctx, const char *name, const char *iversion,
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unsigned int reserved)
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{
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gpgme_error_t err;
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void *hook;
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op_data_t opd;
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TRACE_BEG (DEBUG_CTX, "gpgme_op_query_swdb", ctx,
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"name=%s, iversion=%s", name, iversion);
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if (!ctx || reserved)
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return TRACE_ERR (gpg_error (GPG_ERR_INV_VALUE));
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if (ctx->protocol != GPGME_PROTOCOL_GPGCONF)
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return TRACE_ERR (gpg_error (GPG_ERR_UNSUPPORTED_PROTOCOL));
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if (!name)
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name = "gpgme";
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if (!iversion && !strcmp (name, "gpgme"))
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iversion = VERSION;
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err = _gpgme_op_reset (ctx, 1);
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if (err)
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return err;
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err = _gpgme_op_data_lookup (ctx, OPDATA_QUERY_SWDB, &hook,
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sizeof (*opd), release_op_data);
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opd = hook;
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if (err)
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return TRACE_ERR (err);
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err = _gpgme_engine_op_query_swdb (ctx->engine, name, iversion,
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&opd->result);
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return TRACE_ERR (err);
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}
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