#include "common.h"#include "string.h"#include <sys/stat.h>#include <fcntl.h>#include <errno.h>static void usage(void) {  printf("Usage: newplaylist -i <fileid/trackid> -n <playlistname>\n");  exit(0);}int main (int argc, char **argv) {  int opt;  extern int optind;  extern char *optarg;  LIBMTP_mtpdevice_t *device = NULL;  int idcount = 0;  uint32_t *ids = NULL;  uint32_t *tmp = NULL;  char *playlistname = NULL;   while ( (opt = getopt(argc, argv, "hn:i:")) != -1 ) {    switch (opt) {    case 'h':      usage();    case 'i':      idcount++;      if ((tmp = realloc(ids, sizeof(uint32_t) * (idcount))) == NULL) {        printf("realloc failed\n");        return 1;      }      ids = tmp;      ids[(idcount-1)] = atoi(strdup(optarg));      break;    case 'n':      playlistname = strdup(optarg);      break;    default:      usage();    }  }  argc -= optind;  argv += optind;  if ( playlistname == NULL) {    printf("You need to supply a playlist name.\n");    usage();  }  if (idcount == 0) {    printf("You need to supply one or more track IDs\n");    usage();  }      LIBMTP_Init();  device = LIBMTP_Get_First_Device();  if (device == NULL) {    printf("No devices.\n");    return 0;  }  LIBMTP_playlist_t *playlist = LIBMTP_new_playlist_t();  playlist->name = playlistname;  playlist->no_tracks = idcount;  playlist->tracks = ids;  int ret = LIBMTP_Create_New_Playlist(device,playlist,0);  if (ret != 0) {    printf("Couldn't create album object\n");  }  else {  	printf("Created new playlist: %u\n", playlist->playlist_id);  }  LIBMTP_Release_Device(device);  printf("OK.\n");  return 0;}