gnunet-directory.c File Reference

display content of GNUnet directories More...

#include "platform.h"
#include "gnunet_fs_service.h"

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Functions
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)
	Print a meta data entry.
static void	print_entry (void *cls, const char *filename, const struct GNUNET_FS_Uri *uri, const struct GNUNET_FS_MetaData *meta, size_t length, const void *data)
	Print an entry in a directory.
static void	run (void *cls, char *const *args, const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *cfg)
	Main function that will be run by the scheduler.
int	main (int argc, char *const *argv)
	The main function to inspect GNUnet directories.

Variables
static int	ret

Detailed Description

display content of GNUnet directories

Author

Christian Grothoff

Definition in file gnunet-directory.c.

Function Documentation

item_printer()

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  )

static

Print a meta data entry.

Parameters

cls	closure (unused)
plugin_name	name of the plugin that generated the meta data
type	type of the keyword
format	format of data
data_mime_type	mime type of data
data	value of the meta data
data_size	number of bytes in data

Returns

always 0 (to continue iterating)

Definition at line 44 of file gnunet-directory.c.

{
  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;
#if HAVE_LIBEXTRACTOR
  printf ("\t%20s: %s\n",
          dgettext (LIBEXTRACTOR_GETTEXT_DOMAIN,
                    EXTRACTOR_metatype_to_string (type)),
          data);
#else
  printf ("\t%20d: %s\n", type, data);
#endif
  return 0;
}

References _, data, data_size, dgettext, EXTRACTOR_METAFORMAT_C_STRING, EXTRACTOR_METAFORMAT_UTF8, EXTRACTOR_METATYPE_GNUNET_FULL_DATA, EXTRACTOR_METATYPE_GNUNET_ORIGINAL_FILENAME, LIBEXTRACTOR_GETTEXT_DOMAIN, and type.

Referenced by print_entry().

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print_entry()

static void print_entry ( void *  cls, const char *  filename, const struct GNUNET_FS_Uri *  uri, const struct GNUNET_FS_MetaData *  meta, size_t  length, const void *  data  )

static

Print an entry in a directory.

Parameters

cls	closure (not used)
filename	name of the file in the directory
uri	URI of the file
meta	metadata for the file; metadata for the directory if everything else is NULL/zero
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).
data	data available for the file (length bytes)

Definition at line 91 of file gnunet-directory.c.

{
  char *string;
  char *name;
 
  name = GNUNET_FS_meta_data_get_by_type (
    meta,
    EXTRACTOR_METATYPE_GNUNET_ORIGINAL_FILENAME);
  if (uri == NULL)
  {
    printf (_ ("Directory `%s' meta data:\n"), name ? name : "");
    GNUNET_FS_meta_data_iterate (meta, &item_printer, NULL);
    printf ("\n");
    printf (_ ("Directory `%s' contents:\n"), name ? name : "");
    GNUNET_free (name);
    return;
  }
  string = GNUNET_FS_uri_to_string (uri);
  printf ("%s (%s):\n", name ? name : "", string);
  GNUNET_free (string);
  GNUNET_FS_meta_data_iterate (meta, &item_printer, NULL);
  printf ("\n");
  GNUNET_free (name);
}

References _, EXTRACTOR_METATYPE_GNUNET_ORIGINAL_FILENAME, GNUNET_free, GNUNET_FS_meta_data_get_by_type(), GNUNET_FS_meta_data_iterate(), GNUNET_FS_uri_to_string(), item_printer(), meta, name, and uri.

Referenced by run().

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run()

static void run ( void *  cls, char *const *  args, const char *  cfgfile, const struct GNUNET_CONFIGURATION_Handle *  cfg  )

static

Main function that will be run by the scheduler.

Parameters

cls	closure
args	remaining command-line arguments
cfgfile	name of the configuration file used (for saving, can be NULL!)
cfg	configuration

Definition at line 131 of file gnunet-directory.c.

{
  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, 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);
  }
}

References _, data, filename, GNUNET_assert, GNUNET_DISK_file_close(), GNUNET_DISK_file_map(), GNUNET_DISK_file_open(), GNUNET_DISK_file_size(), GNUNET_DISK_file_unmap(), GNUNET_DISK_MAP_TYPE_READ, GNUNET_DISK_OPEN_READ, GNUNET_DISK_PERM_NONE, GNUNET_ERROR_TYPE_ERROR, GNUNET_FS_directory_list_contents(), GNUNET_log, GNUNET_OK, GNUNET_YES, h, map, print_entry(), ret, and size.

Referenced by main().

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main()

int main	(	int	argc,
		char *const *	argv
	)

The main function to inspect GNUnet directories.

Parameters

argc	number of arguments from the command line
argv	command line arguments

Returns

0 ok, 1 on error

Definition at line 187 of file gnunet-directory.c.

{
  static struct GNUNET_GETOPT_CommandLineOption options[] = {
    GNUNET_GETOPT_OPTION_END
  };
 
  ret = (GNUNET_OK ==
         GNUNET_PROGRAM_run (GNUNET_OS_project_data_gnunet (),
                             argc,
                             argv,
                             "gnunet-directory [OPTIONS] FILENAME",
                             gettext_noop (
                               "Display contents of a GNUnet directory"),
                             options,
                             &run,
                             NULL))
        ? ret
        : 1;
  return ret;
}

References gettext_noop, GNUNET_GETOPT_OPTION_END, GNUNET_OK, GNUNET_OS_project_data_gnunet(), GNUNET_PROGRAM_run(), options, ret, and run().

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Variable Documentation

ret

int ret

static

Definition at line 29 of file gnunet-directory.c.

Referenced by main(), and run().