# files.c

    #include "common.h"
    #include <stdlib.h>

    static void dump_fileinfo(LIBMTP_file_t *file)
    {
      printf("File ID: %u\n", file->item_id);
      if (file->filename != NULL)
        printf("   Filename: %s\n", file->filename);

      // This is sort of special...
      if (file->filesize == (uint32_t) -1) {
        printf("   None. (abstract file, size = -1)\n");
      } else {
    #ifdef __WIN32__
        printf("   File size %llu (0x%016I64X) bytes\n", file->filesize, file->filesize);
    #else
        printf("   File size %llu (0x%016llX) bytes\n",
               (long long unsigned int) file->filesize,
               (long long unsigned int) file->filesize);
    #endif
      }
      printf("   Parent ID: %u\n", file->parent_id);
      printf("   Storage ID: 0x%08X\n", file->storage_id);
      printf("   Filetype: %s\n", LIBMTP_Get_Filetype_Description(file->filetype));
    }

    int main (int argc, char **argv)
    {
      LIBMTP_mtpdevice_t *device_list, *iter;
      LIBMTP_file_t *files;

      fprintf(stdout, "libmtp version: " LIBMTP_VERSION_STRING "\n\n");

      LIBMTP_Init();

      switch(LIBMTP_Get_Connected_Devices(&device_list))
      {
      case LIBMTP_ERROR_NO_DEVICE_ATTACHED:
        fprintf(stdout, "mtp-files: No Devices have been found\n");
        return 0;
      case LIBMTP_ERROR_CONNECTING:
        fprintf(stderr, "mtp-files: There has been an error connecting. Exit\n");
        return 1;
      case LIBMTP_ERROR_MEMORY_ALLOCATION:
        fprintf(stderr, "mtp-files: Memory Allocation Error. Exit\n");
        return 1;

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

      /* Successfully connected at least one device, so continue */
      case LIBMTP_ERROR_NONE:
        fprintf(stdout, "mtp-files: Successfully connected\n");
        fflush(stdout);
      }

      /* iterate through connected MTP devices */
      for(iter = device_list; iter != NULL; iter = iter->next)
      {

        char *friendlyname;

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

              /* Get track listing. */
              files = LIBMTP_Get_Filelisting_With_Callback(iter, NULL, NULL);
              if (files == NULL) {
                printf("No files.\n");
                LIBMTP_Dump_Errorstack(iter);
                LIBMTP_Clear_Errorstack(iter);
              } else {
                LIBMTP_file_t *file, *tmp;
                file = files;
                while (file != NULL) {
                  dump_fileinfo(file);
                  tmp = file;
                  file = file->next;
                  LIBMTP_destroy_file_t(tmp);
          }
              }
      }

      LIBMTP_Release_Device_List(device_list);
      printf("OK.\n");
      exit (0);
    }