122 lines
3.2 KiB
C
122 lines
3.2 KiB
C
/* decrypt-verify.c - Decrypt and verify function.
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Copyright (C) 2000 Werner Koch (dd9jn)
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Copyright (C) 2001, 2002, 2003, 2004 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, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA. */
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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 "debug.h"
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#include "gpgme.h"
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#include "ops.h"
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static gpgme_error_t
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decrypt_verify_status_handler (void *priv, gpgme_status_code_t code,
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char *args)
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{
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gpgme_error_t err;
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err = _gpgme_progress_status_handler (priv, code, args);
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if (!err)
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err = _gpgme_decrypt_status_handler (priv, code, args);
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if (!err)
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err = _gpgme_verify_status_handler (priv, code, args);
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return err;
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}
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static gpgme_error_t
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decrypt_verify_start (gpgme_ctx_t ctx, int synchronous,
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gpgme_data_t cipher, gpgme_data_t plain)
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{
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gpgme_error_t err;
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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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err = _gpgme_op_decrypt_init_result (ctx);
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if (err)
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return err;
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err = _gpgme_op_verify_init_result (ctx);
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if (err)
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return err;
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if (!cipher)
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return gpg_error (GPG_ERR_NO_DATA);
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if (!plain)
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return gpg_error (GPG_ERR_INV_VALUE);
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if (ctx->passphrase_cb)
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{
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err = _gpgme_engine_set_command_handler
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(ctx->engine, _gpgme_passphrase_command_handler, ctx, NULL);
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if (err)
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return err;
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}
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_gpgme_engine_set_status_handler (ctx->engine,
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decrypt_verify_status_handler, ctx);
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return _gpgme_engine_op_decrypt_verify (ctx->engine, cipher, plain);
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}
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/* Decrypt ciphertext CIPHER and make a signature verification within
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CTX and store the resulting plaintext in PLAIN. */
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gpgme_error_t
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gpgme_op_decrypt_verify_start (gpgme_ctx_t ctx, gpgme_data_t cipher,
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gpgme_data_t plain)
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{
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gpgme_error_t err;
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TRACE_BEG2 (DEBUG_CTX, "gpgme_op_decrypt_verify_start", ctx,
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"cipher=%p, plain=%p", cipher, plain);
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if (!ctx)
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return TRACE_ERR (gpg_error (GPG_ERR_INV_VALUE));
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err = decrypt_verify_start (ctx, 0, cipher, plain);
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return TRACE_ERR (err);
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}
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/* Decrypt ciphertext CIPHER and make a signature verification within
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CTX and store the resulting plaintext in PLAIN. */
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gpgme_error_t
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gpgme_op_decrypt_verify (gpgme_ctx_t ctx, gpgme_data_t cipher,
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gpgme_data_t plain)
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{
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gpgme_error_t err;
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TRACE_BEG2 (DEBUG_CTX, "gpgme_op_decrypt_verify", ctx,
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"cipher=%p, plain=%p", cipher, plain);
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if (!ctx)
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return TRACE_ERR (gpg_error (GPG_ERR_INV_VALUE));
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err = decrypt_verify_start (ctx, 1, cipher, plain);
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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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