tools/getiversion/getiversion.c

   1 /*
   2  * getiversion
   3  *
   4  * Get version number for an inode on an ext2 file system.
   5  */
   6
   7 #ifdef HAVE_CONFIG_H
   8 #include <config.h>
   9 #endif
  10
  11 #ifdef HAVE_SYS_IOCTL_H
  12 #include <sys/ioctl.h>
  13 #endif
  14
  15 #ifdef HAVE_UNISTD_H
  16 #include <unistd.h>
  17 #endif
  18
  19 #ifdef HAVE_FCNTL_H
  20 #include <fcntl.h>
  21 #endif
  22
  23 #include <stdio.h>
  24 #include <sys/fs/ext2fs.h>
  25
  26 int
  27 main(int argc, char **argv)
  28 {
  29         int     i, fd;
  30         u_int32_t       vers;
  31
  32         if (argc <= 1) {
  33                 fprintf(stderr, "usage: getiversion file ...\n");
  34                 return 1;
  35         }
  36
  37         for (i = 1; i < argc; i++) {
  38                 if ((fd = open(argv[i], O_RDONLY)) < 0
  39                  || ioctl(fd, EXT2_IOC_GETVERSION, &vers) < 0) {
  40                         perror(argv[i]);
  41                         continue;
  42                 } else {
  43                         printf("%-20s %d\n", argv[i], vers);
  44                 }
  45                 close(fd);
  46         }
  47         return 0;
  48 }