51fd6d8292
-- Also fixed a couple of minor thing; e.g. save the error before calling cleanup functions. Do not save the errno if only free is called in between.
156 lines
3.6 KiB
C
156 lines
3.6 KiB
C
/* passphrase.c - Passphrase callback.
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Copyright (C) 2000 Werner Koch (dd9jn)
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Copyright (C) 2001, 2002, 2003, 2004, 2005 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 <stdio.h>
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#include <stdlib.h>
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#include <string.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 "context.h"
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#include "ops.h"
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#include "util.h"
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#include "debug.h"
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typedef struct
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{
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int no_passphrase;
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char *uid_hint;
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char *passphrase_info;
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int bad_passphrase;
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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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if (opd->passphrase_info)
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free (opd->passphrase_info);
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if (opd->uid_hint)
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free (opd->uid_hint);
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}
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gpgme_error_t
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_gpgme_passphrase_status_handler (void *priv, gpgme_status_code_t code,
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char *args)
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{
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gpgme_ctx_t ctx = (gpgme_ctx_t) priv;
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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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err = _gpgme_op_data_lookup (ctx, OPDATA_PASSPHRASE, &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 err;
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switch (code)
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{
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case GPGME_STATUS_USERID_HINT:
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if (opd->uid_hint)
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free (opd->uid_hint);
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if (!(opd->uid_hint = strdup (args)))
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return gpg_error_from_syserror ();
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break;
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case GPGME_STATUS_BAD_PASSPHRASE:
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opd->bad_passphrase++;
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opd->no_passphrase = 0;
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break;
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case GPGME_STATUS_GOOD_PASSPHRASE:
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opd->bad_passphrase = 0;
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opd->no_passphrase = 0;
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break;
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case GPGME_STATUS_NEED_PASSPHRASE:
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case GPGME_STATUS_NEED_PASSPHRASE_SYM:
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case GPGME_STATUS_NEED_PASSPHRASE_PIN:
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if (opd->passphrase_info)
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free (opd->passphrase_info);
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opd->passphrase_info = strdup (args);
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if (!opd->passphrase_info)
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return gpg_error_from_syserror ();
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break;
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case GPGME_STATUS_MISSING_PASSPHRASE:
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opd->no_passphrase = 1;
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break;
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case GPGME_STATUS_EOF:
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if (opd->no_passphrase || opd->bad_passphrase)
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return gpg_error (GPG_ERR_BAD_PASSPHRASE);
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break;
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default:
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/* Ignore all other codes. */
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break;
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}
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return 0;
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}
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gpgme_error_t
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_gpgme_passphrase_command_handler (void *priv, gpgme_status_code_t code,
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const char *key, int fd, int *processed)
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{
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gpgme_ctx_t ctx = (gpgme_ctx_t) priv;
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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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assert (ctx->passphrase_cb);
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err = _gpgme_op_data_lookup (ctx, OPDATA_PASSPHRASE, &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 err;
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if (code == GPGME_STATUS_GET_HIDDEN
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&& (!strcmp (key, "passphrase.enter")
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|| !strcmp (key, "passphrase.pin.ask")))
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{
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if (processed)
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*processed = 1;
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err = ctx->passphrase_cb (ctx->passphrase_cb_value,
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opd->uid_hint, opd->passphrase_info,
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opd->bad_passphrase, fd);
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/* Reset bad passphrase flag, in case it is correct now. */
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opd->bad_passphrase = 0;
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return err;
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}
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return 0;
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}
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