#include "common.h"#include "string.h"#include <sys/stat.h>#include <fcntl.h>#include <errno.h>static void usage(void) {  printf("Usage: albumart -i <fileid/trackid> -n <albumname> <imagefile>\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;  int fd;  uint32_t *ids = NULL;  uint32_t *tmp = NULL;  uint64_t filesize;  char *imagedata = NULL;  char *albumname = NULL;  char *path = NULL;  struct stat statbuff;  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':      albumname = strdup(optarg);      break;    default:      usage();    }  }  argc -= optind;  argv += optind;  if ( argc != 1 ) {    printf("You need to pass a filename.\n");    usage();  }  if ( albumname == NULL) {    printf("You need to supply an album name.\n");    usage();  }  if (idcount == 0) {    printf("You need to supply one or more track IDs\n");    usage();  }  path = argv[0];  if ( stat(path, &statbuff) == -1 ) {    fprintf(stderr, "%s: ", path);    perror("stat");    exit(1);  }  filesize = (uint64_t) statbuff.st_size;  imagedata = malloc(filesize * sizeof(uint8_t));#ifdef __WIN32__  if ( (fd = open(path, O_RDONLY|O_BINARY) == -1 ) {#else  if ( (fd = open(path, O_RDONLY)) == -1) {#endif    printf("Couldn't open image file %s (%s)\n",path,strerror(errno));    return 1;  }  else {    read(fd, imagedata, filesize);    close(fd);  }  LIBMTP_Init();  device = LIBMTP_Get_First_Device();  if (device == NULL) {    printf("No devices.\n");    return 0;  }  LIBMTP_filesampledata_t *albumart = LIBMTP_new_filesampledata_t();  albumart->data = imagedata;  albumart->size = filesize;  albumart->filetype = LIBMTP_FILETYPE_JPEG;  LIBMTP_album_t *album = LIBMTP_new_album_t();  album->name = albumname;  album->no_tracks = idcount;  album->tracks = ids;  int ret = LIBMTP_Create_New_Album(device,album,0);  if (ret == 0) {    ret = LIBMTP_Send_Representative_Sample(device,album->album_id, albumart);    if (ret != 0) {      printf("Couldn't send album art\n");    }  }  else {    printf("Couldn't create album object\n");  }  LIBMTP_destroy_filesampledata_t(albumart);  LIBMTP_destroy_album_t(album);  LIBMTP_Release_Device(device);  printf("OK.\n");  return 0;}