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tdepim/libkdenetwork/libgpgme-copy/gpgme/op-support.c

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6.4 KiB

/* op-support.c
Copyright (C) 2002, 2003, 2004 g10 Code GmbH
This file is part of GPGME.
GPGME is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2.1 of
the License, or (at your option) any later version.
GPGME is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA. */
#if HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <locale.h>
#include "gpgme.h"
#include "context.h"
#include "ops.h"
gpgme_error_t
_gpgme_op_data_lookup (gpgme_ctx_t ctx, ctx_op_data_id_t type, void **hook,
int size, void (*cleanup) (void *))
{
struct ctx_op_data *data = ctx->op_data;
while (data && data->type != type)
data = data->next;
if (!data)
{
if (size < 0)
{
*hook = NULL;
return 0;
}
data = calloc (1, sizeof (struct ctx_op_data) + size);
if (!data)
return gpg_error_from_errno (errno);
data->next = ctx->op_data;
data->type = type;
data->cleanup = cleanup;
data->hook = (void *) (((char *) data) + sizeof (struct ctx_op_data));
ctx->op_data = data;
}
*hook = data->hook;
return 0;
}
/* type is: 0: asynchronous operation (use global or user event loop).
1: synchronous operation (always use private event loop).
2: asynchronous private operation (use private or user
event loop). */
gpgme_error_t
_gpgme_op_reset (gpgme_ctx_t ctx, int type)
{
gpgme_error_t err = 0;
struct gpgme_io_cbs io_cbs;
_gpgme_release_result (ctx);
if (ctx->engine)
{
/* Attempt to reset an existing engine. */
err = _gpgme_engine_reset (ctx->engine);
if (gpg_err_code (err) == GPG_ERR_NOT_IMPLEMENTED)
{
_gpgme_engine_release (ctx->engine);
ctx->engine = NULL;
}
}
if (!ctx->engine)
{
gpgme_engine_info_t info;
info = ctx->engine_info;
while (info && info->protocol != ctx->protocol)
info = info->next;
if (!info)
return gpg_error (GPG_ERR_UNSUPPORTED_PROTOCOL);
/* Create an engine object. */
err = _gpgme_engine_new (info, &ctx->engine);
if (err)
return err;
}
err = _gpgme_engine_set_locale (ctx->engine, LC_CTYPE, ctx->lc_ctype);
#ifdef LC_MESSAGES
if (!err)
err = _gpgme_engine_set_locale (ctx->engine,
LC_MESSAGES, ctx->lc_messages);
#endif
if (err)
{
_gpgme_engine_release (ctx->engine);
ctx->engine = NULL;
return err;
}
if (type == 1 || (type == 2 && !ctx->io_cbs.add))
{
/* Use private event loop. */
io_cbs.add = _gpgme_add_io_cb;
io_cbs.add_priv = ctx;
io_cbs.remove = _gpgme_remove_io_cb;
io_cbs.event = _gpgme_wait_private_event_cb;
io_cbs.event_priv = ctx;
}
else if (! ctx->io_cbs.add)
{
/* Use global event loop. */
io_cbs.add = _gpgme_add_io_cb;
io_cbs.add_priv = ctx;
io_cbs.remove = _gpgme_remove_io_cb;
io_cbs.event = _gpgme_wait_global_event_cb;
io_cbs.event_priv = ctx;
}
else
{
/* Use user event loop. */
io_cbs.add = _gpgme_wait_user_add_io_cb;
io_cbs.add_priv = ctx;
io_cbs.remove = _gpgme_wait_user_remove_io_cb;
io_cbs.event = _gpgme_wait_user_event_cb;
io_cbs.event_priv = ctx;
}
_gpgme_engine_set_io_cbs (ctx->engine, &io_cbs);
return err;
}
/* Parse the INV_RECP status line in ARGS and return the result in
KEY. */
gpgme_error_t
_gpgme_parse_inv_recp (char *args, gpgme_invalid_key_t *key)
{
gpgme_invalid_key_t inv_key;
char *tail;
long int reason;
inv_key = malloc (sizeof (*inv_key));
if (!inv_key)
return gpg_error_from_errno (errno);
inv_key->next = NULL;
errno = 0;
reason = strtol (args, &tail, 0);
if (errno || args == tail || *tail != ' ')
{
/* The crypto backend does not behave. */
free (inv_key);
return gpg_error (GPG_ERR_INV_ENGINE);
}
switch (reason)
{
default:
case 0:
inv_key->reason = gpg_error (GPG_ERR_GENERAL);
break;
case 1:
inv_key->reason = gpg_error (GPG_ERR_NO_PUBKEY);
break;
case 2:
inv_key->reason = gpg_error (GPG_ERR_AMBIGUOUS_NAME);
break;
case 3:
inv_key->reason = gpg_error (GPG_ERR_WRONG_KEY_USAGE);
break;
case 4:
inv_key->reason = gpg_error (GPG_ERR_CERT_REVOKED);
break;
case 5:
inv_key->reason = gpg_error (GPG_ERR_CERT_EXPIRED);
break;
case 6:
inv_key->reason = gpg_error (GPG_ERR_NO_CRL_KNOWN);
break;
case 7:
inv_key->reason = gpg_error (GPG_ERR_CRL_TOO_OLD);
break;
case 8:
inv_key->reason = gpg_error (GPG_ERR_NO_POLICY_MATCH);
break;
case 9:
inv_key->reason = gpg_error (GPG_ERR_NO_SECKEY);
break;
case 10:
inv_key->reason = gpg_error (GPG_ERR_PUBKEY_NOT_TRUSTED);
break;
}
while (*tail == ' ')
tail++;
if (*tail)
{
inv_key->fpr = strdup (tail);
if (!inv_key->fpr)
{
int saved_errno = errno;
free (inv_key);
return gpg_error_from_errno (saved_errno);
}
}
else
inv_key->fpr = NULL;
*key = inv_key;
return 0;
}
/* Parse the PLAINTEXT status line in ARGS and return the result in
FILENAMEP. */
gpgme_error_t
_gpgme_parse_plaintext (char *args, char **filenamep)
{
char *tail;
while (*args == ' ')
args++;
if (*args == '\0')
return 0;
/* First argument is file type. */
while (*args != ' ' && *args != '\0')
args++;
while (*args == ' ')
args++;
if (*args == '\0')
return 0;
/* Second argument is the timestamp. */
while (*args != ' ' && *args != '\0')
args++;
while (*args == ' ')
args++;
if (*args == '\0')
return 0;
tail = args;
while (*tail != ' ' && *tail != '\0')
tail++;
*tail = '\0';
if (filenamep && *args != '\0')
{
char *filename = strdup (args);
if (!filename)
return gpg_error_from_errno (errno);
*filenamep = filename;
}
return 0;
}