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/* signers.c - Maintain signer sets.
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* Copyright (C) 2001 Werner Koch (dd9jn)
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* Copyright (C) 2001, 2002, 2003, 2004 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 <stdio.h>
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#include <stdlib.h>
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#include <assert.h>
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#include <errno.h>
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#include "gpgme.h"
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#include "util.h"
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#include "context.h"
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#include "debug.h"
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/* Delete all signers from CTX. */
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void
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_gpgme_signers_clear (gpgme_ctx_t ctx)
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{
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unsigned int i;
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if (!ctx || !ctx->signers)
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return;
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for (i = 0; i < ctx->signers_len; i++)
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{
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assert (ctx->signers[i]);
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gpgme_key_unref (ctx->signers[i]);
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ctx->signers[i] = NULL;
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}
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ctx->signers_len = 0;
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}
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void
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gpgme_signers_clear (gpgme_ctx_t ctx)
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{
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TRACE (DEBUG_CTX, "gpgme_signers_clear", ctx, "");
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_gpgme_signers_clear (ctx);
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}
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/* Add KEY to list of signers in CTX. */
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gpgme_error_t
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gpgme_signers_add (gpgme_ctx_t ctx, const gpgme_key_t key)
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{
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TRACE_BEG (DEBUG_CTX, "gpgme_signers_add", ctx,
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"key=%p (%s)", key, (key && key->subkeys && key->subkeys->fpr) ?
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key->subkeys->fpr : "invalid");
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if (!ctx || !key)
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return TRACE_ERR (gpg_error (GPG_ERR_INV_VALUE));
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if (ctx->signers_len == ctx->signers_size)
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{
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gpgme_key_t *newarr;
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int n = ctx->signers_size + 5;
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int j;
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newarr = realloc (ctx->signers, n * sizeof (*newarr));
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if (!newarr)
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return TRACE_ERR (gpg_error_from_syserror ());
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for (j = ctx->signers_size; j < n; j++)
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newarr[j] = NULL;
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ctx->signers = newarr;
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ctx->signers_size = n;
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}
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gpgme_key_ref (key);
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ctx->signers[ctx->signers_len++] = key;
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TRACE_SUC ("");
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return 0;
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}
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/* Return the number of signers in CTX. */
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unsigned int
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gpgme_signers_count (const gpgme_ctx_t ctx)
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{
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return ctx? ctx->signers_len : 0;
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}
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/* Return the SEQth signer's key in CTX with one reference. */
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gpgme_key_t
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gpgme_signers_enum (const gpgme_ctx_t ctx, int seq)
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{
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unsigned int seqno;
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if (!ctx || seq < 0)
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return NULL;
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seqno = (unsigned int) seq;
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if (seqno >= ctx->signers_len)
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return NULL;
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gpgme_key_ref (ctx->signers[seqno]);
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return ctx->signers[seqno];
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}
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