lib/ext2fs/tst_libext2fs.c

   1 /*
   2  * tst_libext2fs.c
   3  */
   4
   5 #include "config.h"
   6 #include <stdio.h>
   7 #include <string.h>
   8 #if HAVE_UNISTD_H
   9 #include <unistd.h>
  10 #endif
  11 #if HAVE_ERRNO_H
  12 #include <errno.h>
  13 #endif
  14 #if HAVE_SYS_STAT_H
  15 #include <sys/stat.h>
  16 #endif
  17 #if HAVE_SYS_TYPES_H
  18 #include <sys/types.h>
  19 #endif
  20
  21 #include "ext2_fs.h"
  22 #include "ext2fsP.h"
  23
  24 #include "ss/ss.h"
  25 #include "debugfs.h"
  26
  27 /*
  28  * Hook in new commands into debugfs
  29  * Override debugfs's prompt
  30  */
  31 const char *debug_prog_name = "tst_libext2fs";
  32 extern ss_request_table libext2fs_cmds;
  33 ss_request_table *extra_cmds = &libext2fs_cmds;
  34
  35 static int print_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
  36                              blk64_t *blocknr, e2_blkcnt_t blockcnt,
  37                              blk64_t ref_block, int ref_offset,
  38                              void *private EXT2FS_ATTR((unused)))
  39 {
  40         printf("%6lld %8llu (%d %llu)\n", (long long) blockcnt,
  41                (unsigned long long)*blocknr, ref_offset, ref_block);
  42         return 0;
  43 }
  44
  45
  46 void do_block_iterate(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
  47                       void *infop EXT2FS_ATTR((unused)))
  48 {
  49         const char      *usage = "block_iterate <file> <flags";
  50         ext2_ino_t      ino;
  51         int             err = 0;
  52         int             flags = 0;
  53
  54         if (common_args_process(argc, argv, 2, 3, argv[0], usage, 0))
  55                 return;
  56
  57         ino = string_to_inode(argv[1]);
  58         if (!ino)
  59                 return;
  60
  61         if (argc > 2) {
  62                 flags = parse_ulong(argv[2], argv[0], "flags", &err);
  63                 if (err)
  64                         return;
  65         }
  66         flags |= BLOCK_FLAG_READ_ONLY;
  67
  68         ext2fs_block_iterate3(current_fs, ino, flags, NULL,
  69                               print_blocks_proc, NULL);
  70         putc('\n', stdout);
  71 }