examples/folders.c

/**
 * \file folders.c
 * Example program that lists all folders on a device.
 *
 * Copyright (C) 2005-2011 Linus Walleij <triad@df.lth.se>
 * Copyright (C) 2007 Ted Bullock <tbullock@canada.com>
 *
 * This library 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 of the License, or (at your option) any later version.
 *
 * This library 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 library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */
#include "common.h"
#include <stdlib.h>

static void dump_folder_list(LIBMTP_folder_t *folderlist, int level)
{
  int i;
  if(folderlist==NULL) {
    return;
  }

  printf("%u\t", folderlist->folder_id);
  for(i=0;i<level;i++) printf("  ");

  printf("%s\n", folderlist->name);

  dump_folder_list(folderlist->child, level+1);
  dump_folder_list(folderlist->sibling, level);
}

int main (int argc, char **argv)
{
  LIBMTP_raw_device_t *rawdevices;
  int numrawdevices;
  int i;

  LIBMTP_Init();
  printf("Attempting to connect device(s)\n");

  switch (LIBMTP_Detect_Raw_Devices(&rawdevices, &numrawdevices)) {
  case LIBMTP_ERROR_NO_DEVICE_ATTACHED:
    printf("mtp-folders: no devices found\n");
    return 0;
  case LIBMTP_ERROR_CONNECTING:
    fprintf(stderr, "mtp-folders: There has been an error connecting. Exit\n");
    return 1;
  case LIBMTP_ERROR_MEMORY_ALLOCATION:
    fprintf(stderr, "mtp-folders: Memory Allocation Error. Exit\n");
    return 1;

  /* Unknown general errors - This should never execute */
  case LIBMTP_ERROR_GENERAL:
  default:
    fprintf(stderr, "mtp-folders: Unknown error, please report "
                    "this to the libmtp developers\n");
    return 1;

  /* Successfully connected at least one device, so continue */
  case LIBMTP_ERROR_NONE:
    printf("mtp-folders: Successfully connected\n");
  }

  /* iterate through connected MTP devices */
  for (i = 0; i < numrawdevices; i++) {
    LIBMTP_mtpdevice_t *device;
    LIBMTP_devicestorage_t *storage;
    char *friendlyname;
    int ret;

    device = LIBMTP_Open_Raw_Device(&rawdevices[i]);
    if (device == NULL) {
      fprintf(stderr, "Unable to open raw device %d\n", i);
      continue;
    }

    /* Echo the friendly name so we know which device we are working with */
    friendlyname = LIBMTP_Get_Friendlyname(device);
    if (friendlyname == NULL) {
      printf("Friendly name: (NULL)\n");
    } else {
      printf("Friendly name: %s\n", friendlyname);
      free(friendlyname);
    }

    LIBMTP_Dump_Errorstack(device);
    LIBMTP_Clear_Errorstack(device);

    /* Get all storages for this device */
    ret = LIBMTP_Get_Storage(device, LIBMTP_STORAGE_SORTBY_NOTSORTED);
    if (ret != 0) {
      perror("LIBMTP_Get_Storage()\n");
      LIBMTP_Dump_Errorstack(device);
      LIBMTP_Clear_Errorstack(device);
      continue;
    }

    /* Loop over storages, dump folder for each one */
    for (storage = device->storage; storage != 0; storage = storage->next) {
      LIBMTP_folder_t *folders;

      printf("Storage: %s\n", storage->StorageDescription);
      folders = LIBMTP_Get_Folder_List_For_Storage(device, storage->id);

      if (folders == NULL) {
	fprintf(stdout, "No folders found\n");
	LIBMTP_Dump_Errorstack(device);
	LIBMTP_Clear_Errorstack(device);
      } else {
	dump_folder_list(folders,0);
      }
      LIBMTP_destroy_folder_t(folders);
    }
    LIBMTP_Release_Device(device);
  }

  free(rawdevices);
  printf("OK.\n");

  return 0;
}