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) 47 { 48 const char *usage = "block_iterate <file> <flags"; 49 ext2_ino_t ino; 50 int err = 0; 51 int flags = 0; 52 53 if (common_args_process(argc, argv, 2, 3, argv[0], usage, 0)) 54 return; 55 56 ino = string_to_inode(argv[1]); 57 if (!ino) 58 return; 59 60 if (argc > 2) { 61 flags = parse_ulong(argv[2], argv[0], "flags", &err); 62 if (err) 63 return; 64 } 65 flags |= BLOCK_FLAG_READ_ONLY; 66 67 ext2fs_block_iterate3(current_fs, ino, flags, NULL, 68 print_blocks_proc, NULL); 69 putc('\n', stdout); 70 } 71
