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/*
This file is part of GNUnet.
(C) 2001, 2002, 2004, 2005, 2006, 2007, 2009 Christian Grothoff (and other contributing authors)
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., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
/**
* @file fs/gnunet-directory.c
* @brief display content of GNUnet directories
* @author Christian Grothoff
*/
#include "platform.h"
#include "gnunet_fs_service.h"
static int ret;
/**
* Print a meta data entry.
*
* @param cls closure (unused)
* @param plugin_name name of the plugin that generated the meta data
* @param type type of the keyword
* @param format format of data
* @param data_mime_type mime type of data
* @param data value of the meta data
* @param data_size number of bytes in data
* @return always 0 (to continue iterating)
*/
static int
item_printer (void *cls, const char *plugin_name, enum EXTRACTOR_MetaType type,
enum EXTRACTOR_MetaFormat format, const char *data_mime_type,
const char *data, size_t data_size)
{
if (type == EXTRACTOR_METATYPE_GNUNET_FULL_DATA)
{
printf (_("\t<original file embedded in %u bytes of meta data>\n"),
(unsigned int) data_size);
return 0;
}
if ((format != EXTRACTOR_METAFORMAT_UTF8) &&
(format != EXTRACTOR_METAFORMAT_C_STRING))
return 0;
if (type == EXTRACTOR_METATYPE_GNUNET_ORIGINAL_FILENAME)
return 0;
printf ("\t%20s: %s\n",
dgettext (LIBEXTRACTOR_GETTEXT_DOMAIN,
EXTRACTOR_metatype_to_string (type)), data);
return 0;
}
/**
* Print an entry in a directory.
*
* @param cls closure (not used)
* @param filename name of the file in the directory
* @param uri URI of the file
* @param meta metadata for the file; metadata for
* the directory if everything else is NULL/zero
* @param length length of the available data for the file
* (of type size_t since data must certainly fit
* into memory; if files are larger than size_t
* permits, then they will certainly not be
* embedded with the directory itself).
* @param data data available for the file (length bytes)
*/
static void
print_entry (void *cls, const char *filename, const struct GNUNET_FS_Uri *uri,
const struct GNUNET_CONTAINER_MetaData *meta, size_t length,
const void *data)
{
char *string;
char *name;
name =
GNUNET_CONTAINER_meta_data_get_by_type (meta,
EXTRACTOR_METATYPE_GNUNET_ORIGINAL_FILENAME);
if (uri == NULL)
{
printf (_("Directory `%s' meta data:\n"), name);
GNUNET_CONTAINER_meta_data_iterate (meta, &item_printer, NULL);
printf ("\n");
printf (_("Directory `%s' contents:\n"), name);
GNUNET_free (name);
return;
}
string = GNUNET_FS_uri_to_string (uri);
printf ("%s (%s):\n", name, string);
GNUNET_free (string);
GNUNET_CONTAINER_meta_data_iterate (meta, &item_printer, NULL);
printf ("\n");
GNUNET_free (name);
}
/**
* 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 cfg configuration
*/
static void
run (void *cls, char *const *args, const char *cfgfile,
const struct GNUNET_CONFIGURATION_Handle *cfg)
{
struct GNUNET_DISK_MapHandle *map;
struct GNUNET_DISK_FileHandle *h;
void *data;
size_t len;
uint64_t size;
const char *filename;
int i;
if (NULL == args[0])
{
FPRINTF (stderr, "%s", _("You must specify a filename to inspect.\n"));
ret = 1;
return;
}
i = 0;
while (NULL != (filename = args[i++]))
{
if ((GNUNET_OK != GNUNET_DISK_file_size (filename, &size, GNUNET_YES)) ||
(NULL ==
(h =
GNUNET_DISK_file_open (filename, GNUNET_DISK_OPEN_READ,
GNUNET_DISK_PERM_NONE))))
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR, _("Failed to read directory `%s'\n"),
filename);
ret = 1;
continue;
}
len = (size_t) size;
data = GNUNET_DISK_file_map (h, &map, GNUNET_DISK_MAP_TYPE_READ, len);
GNUNET_assert (NULL != data);
if (GNUNET_OK != GNUNET_FS_directory_list_contents (len, data, 0, &print_entry, NULL))
fprintf (stdout, _("`%s' is not a GNUnet directory\n"),
filename);
else
printf ("\n");
GNUNET_DISK_file_unmap (map);
GNUNET_DISK_file_close (h);
}
}
/**
* The main function to inspect GNUnet directories.
*
* @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)
{
static struct GNUNET_GETOPT_CommandLineOption options[] = {
GNUNET_GETOPT_OPTION_END
};
return (GNUNET_OK ==
GNUNET_PROGRAM_run (argc, argv, "gnunet-directory [OPTIONS] FILENAME",
gettext_noop
("Display contents of a GNUnet directory"),
options, &run, NULL)) ? ret : 1;
}
/* end of gnunet-directory.c */
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