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Diffstat (limited to 'src/fs/gnunet-directory.c')
| -rw-r--r-- | src/fs/gnunet-directory.c | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/src/fs/gnunet-directory.c b/src/fs/gnunet-directory.c new file mode 100644 index 0000000..0721ea9 --- /dev/null +++ b/src/fs/gnunet-directory.c @@ -0,0 +1,183 @@ +/* + 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 */ |