c3e7053489
2001-10-29 Marcus Brinkmann <marcus@g10code.de> * context.h: New member signers_len. * signers.c (gpgme_signers_clear): Require that signers are non-NULL with assertion. Use signers_len to determine how much keys to release. Add documentation. (gpgme_signers_add): Use signers_len to determine if the buffer is large enough. Use xtryrealloc rather than xtrymalloc and copying. Add documentation. (gpgme_signers_enum): Use signers_len to determine if key is available. Add documentation. tests/ 2001-10-29 Marcus Brinkmann <marcus@g10code.de> * t-signers.c: New file. * Makefile.am (TESTS): Add t-signers.
121 lines
2.8 KiB
C
121 lines
2.8 KiB
C
/* signers.c - maintain signer sets
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* Copyright (C) 2001 Werner Koch (dd9jn)
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* Copyright (C) 2001 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
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (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,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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#include <config.h>
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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 "util.h"
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#include "context.h"
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#include "rungpg.h"
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/* The signers are directly stored in the context.
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* So this is quite different to a recipient set.
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*/
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/**
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* gpgme_signers_clear:
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* @c: context to clear from signers
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*
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* Remove the list of signers from the context and release the
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* references to the signers keys.
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*
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* Return value: The version string or NULL
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**/
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void
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gpgme_signers_clear (GpgmeCtx c)
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{
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int i;
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return_if_fail (c);
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if (!c->signers)
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return;
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for (i = 0; i < c->signers_len; i++)
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{
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assert (c->signers[i]);
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gpgme_key_unref (c->signers[i]);
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c->signers[i] = NULL;
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}
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c->signers_len = 0;
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}
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/**
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* gpgme_signers_add:
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* @c: context to add signer to
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* @key: key to add
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*
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* Add the key as a signer to the context. Acquires a reference to
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* the key.
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*
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* Return value: NULL on success, or an error code.
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**/
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GpgmeError
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gpgme_signers_add (GpgmeCtx c, const GpgmeKey key)
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{
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if (!c || !key)
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return mk_error (Invalid_Value);
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if (c->signers_len == c->signers_size)
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{
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GpgmeKey *newarr;
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int n = c->signers_size + 5;
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int j;
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newarr = xtryrealloc (c->signers, n * sizeof (*newarr));
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if (!newarr)
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return mk_error (Out_Of_Core);
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for (j = c->signers_size; j < n; j++)
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newarr[j] = NULL;
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c->signers = newarr;
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c->signers_size = n;
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}
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gpgme_key_ref (key);
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c->signers[c->signers_len++] = key;
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return 0;
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}
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/**
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* gpgme_signers_enum:
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* @c: context to retrieve signer from
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* @seq: index of key to retrieve
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*
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* Acquire a reference to the signers key with the specified index
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* number in the context and return it to the caller.
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*
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* Return value: A GpgmeKey or NULL on failure.
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**/
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GpgmeKey
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gpgme_signers_enum (const GpgmeCtx c, int seq )
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{
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return_null_if_fail (c);
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return_null_if_fail (seq >= 0);
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if (seq >= c->signers_len)
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return NULL;
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gpgme_key_ref (c->signers[seq]);
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return c->signers[seq];
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}
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