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/*
This file is part of GNUnet.
Copyright (C) 2001, 2002, 2004, 2005, 2006, 2007, 2009 GNUnet e.V.
GNUnet is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 3, or (at your
option) any later version.
GNUnet 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
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNUnet; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
/**
* @file dht/gnunet-dht-put.c
* @brief search for data in DHT
* @author Christian Grothoff
* @author Nathan Evans
*/
#include "platform.h"
#include "gnunet_dht_service.h"
/**
* The type of the query
*/
static unsigned int query_type;
/**
* The key used in the DHT
*/
struct GNUNET_HashCode key;
/**
* The key for the query
*/
static char *query_key;
/**
* User supplied timeout value
*/
static unsigned long long timeout_request = 5;
/**
* User supplied expiration value
*/
static unsigned long long expiration_seconds = 3600;
/**
* Desired replication level.
*/
static unsigned int replication = 5;
/**
* Be verbose
*/
static int verbose;
/**
* Use DHT demultixplex_everywhere
*/
static int demultixplex_everywhere;
/**
* Handle to the DHT
*/
static struct GNUNET_DHT_Handle *dht_handle;
/**
* Global handle of the configuration
*/
static const struct GNUNET_CONFIGURATION_Handle *cfg;
/**
* Global status value
*/
static int ret;
/**
* The data to insert into the dht
*/
static char *data;
static void
shutdown_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
if (NULL != dht_handle)
{
GNUNET_DHT_disconnect (dht_handle);
dht_handle = NULL;
}
}
/**
* Signature of the main function of a task.
*
* @param cls closure
* @param success GNUNET_OK if the PUT was transmitted,
* GNUNET_NO on timeout,
* GNUNET_SYSERR on disconnect from service
* after the PUT message was transmitted
* (so we don't know if it was received or not)
*/
static void
message_sent_cont (void *cls, int success)
{
if (verbose)
{
switch (success)
{
case GNUNET_OK:
FPRINTF (stderr, "%s `%s'!\n", _("PUT request sent with key"), GNUNET_h2s_full(&key));
break;
case GNUNET_NO:
FPRINTF (stderr, "%s", _("Timeout sending PUT request!\n"));
break;
case GNUNET_SYSERR:
FPRINTF (stderr, "%s", _("PUT request not confirmed!\n"));
break;
default:
GNUNET_break (0);
break;
}
}
GNUNET_SCHEDULER_add_now (&shutdown_task, NULL);
}
/**
* Main function that will be run by the scheduler.
*
* @param cls closure
* @param args remaining command-line arguments
* @param cfgfile name of the configuration file used (for saving, can be NULL!)
* @param c configuration
*/
static void
run (void *cls, char *const *args, const char *cfgfile,
const struct GNUNET_CONFIGURATION_Handle *c)
{
struct GNUNET_TIME_Relative timeout;
struct GNUNET_TIME_Absolute expiration;
cfg = c;
if ((NULL == query_key) || (NULL == data))
{
FPRINTF (stderr, "%s", _("Must provide KEY and DATA for DHT put!\n"));
ret = 1;
return;
}
if (NULL == (dht_handle = GNUNET_DHT_connect (cfg, 1)))
{
FPRINTF (stderr, _("Could not connect to %s service!\n"), "DHT");
ret = 1;
return;
}
if (GNUNET_BLOCK_TYPE_ANY == query_type) /* Type of data not set */
query_type = GNUNET_BLOCK_TYPE_TEST;
GNUNET_CRYPTO_hash (query_key, strlen (query_key), &key);
timeout =
GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, timeout_request);
expiration =
GNUNET_TIME_relative_to_absolute (GNUNET_TIME_relative_multiply
(GNUNET_TIME_UNIT_SECONDS,
expiration_seconds));
if (verbose)
FPRINTF (stderr, _("Issuing put request for `%s' with data `%s'!\n"),
query_key, data);
GNUNET_DHT_put (dht_handle, &key, replication,
(demultixplex_everywhere) ? GNUNET_DHT_RO_DEMULTIPLEX_EVERYWHERE : GNUNET_DHT_RO_NONE,
query_type,
strlen (data), data, expiration, timeout, &message_sent_cont,
NULL);
}
/**
* gnunet-dht-put command line options
*/
static struct GNUNET_GETOPT_CommandLineOption options[] = {
{'d', "data", "DATA",
gettext_noop ("the data to insert under the key"),
1, &GNUNET_GETOPT_set_string, &data},
{'e', "expiration", "EXPIRATION",
gettext_noop ("how long to store this entry in the dht (in seconds)"),
1, &GNUNET_GETOPT_set_ulong, &expiration_seconds},
{'k', "key", "KEY",
gettext_noop ("the query key"),
1, &GNUNET_GETOPT_set_string, &query_key},
{'x', "demultiplex", NULL,
gettext_noop ("use DHT's demultiplex everywhere option"),
0, &GNUNET_GETOPT_set_one, &demultixplex_everywhere},
{'r', "replication", "LEVEL",
gettext_noop ("how many replicas to create"),
1, &GNUNET_GETOPT_set_uint, &replication},
{'t', "type", "TYPE",
gettext_noop ("the type to insert data as"),
1, &GNUNET_GETOPT_set_uint, &query_type},
{'T', "timeout", "TIMEOUT",
gettext_noop ("how long to execute this query before giving up?"),
1, &GNUNET_GETOPT_set_ulong, &timeout_request},
{'V', "verbose", NULL,
gettext_noop ("be verbose (print progress information)"),
0, &GNUNET_GETOPT_set_one, &verbose},
GNUNET_GETOPT_OPTION_END
};
/**
* Entry point for gnunet-dht-put
*
* @param argc number of arguments from the command line
* @param argv command line arguments
* @return 0 ok, 1 on error
*/
int
main (int argc, char *const *argv)
{
if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv))
return 2;
return (GNUNET_OK ==
GNUNET_PROGRAM_run (argc, argv, "gnunet-dht-put",
gettext_noop
("Issue a PUT request to the GNUnet DHT insert DATA under KEY."),
options, &run, NULL)) ? ret : 1;
}
/* end of gnunet-dht-put.c */
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