96 lines
2.6 KiB
C
96 lines
2.6 KiB
C
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/* passwd.c - Passphrase changing function
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Copyright (C) 2010 g10 Code GmbH
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This file is part of GPGME.
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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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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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You should have received a copy of the GNU Lesser General Public
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License along with this program; if not, see <http://www.gnu.org/licenses/>.
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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 "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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static gpgme_error_t
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passwd_status_handler (void *priv, gpgme_status_code_t code, char *args)
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{
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(void)priv;
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(void)code;
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(void)args;
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return 0;
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}
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static gpgme_error_t
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passwd_start (gpgme_ctx_t ctx, int synchronous, gpgme_key_t key,
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unsigned int flags)
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{
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gpgme_error_t err;
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if (!key)
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return gpg_error (GPG_ERR_INV_VALUE);
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if (flags)
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return gpg_error (GPG_ERR_INV_FLAG);
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err = _gpgme_op_reset (ctx, synchronous);
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if (err)
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return err;
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_gpgme_engine_set_status_handler (ctx->engine, passwd_status_handler, ctx);
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return _gpgme_engine_op_passwd (ctx->engine, key, flags);
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}
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/* Change the passphrase for KEY. FLAGS is reserved for future use
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and must be passed as 0. The engine is expected to present a user
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interface to enter the old and the new passphrase. This is the
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asynchronous variant.
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Note that if ever the need arises to supply a passphrase we can do
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this with a flag value and the passphrase callback feature. */
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gpgme_error_t
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gpgme_op_passwd_start (gpgme_ctx_t ctx, gpgme_key_t key, unsigned int flags)
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{
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gpg_error_t err;
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TRACE_BEG2 (DEBUG_CTX, "gpgme_op_passwd_start", ctx,
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"key=%p, flags=0x%x", key, flags);
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err = passwd_start (ctx, 0, key, flags);
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return TRACE_ERR (err);
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}
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/* Change the passphrase for KEY. FLAGS is reserved for future use
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and must be passed as 0. This is the synchronous variant. */
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gpgme_error_t
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gpgme_op_passwd (gpgme_ctx_t ctx, gpgme_key_t key, unsigned int flags)
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{
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gpgme_error_t err;
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TRACE_BEG2 (DEBUG_CTX, "gpgme_op_passwd", ctx,
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"key=%p, flags=0x%x", key, flags);
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err = passwd_start (ctx, 1, key, flags);
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if (!err)
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err = _gpgme_wait_one (ctx);
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return TRACE_ERR (err);
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}
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