+void do_supported_features(int argc, char *argv[])
+{
+ int ret;
+ __u32 supp[3] = { EXT2_LIB_FEATURE_COMPAT_SUPP,
+ EXT2_LIB_FEATURE_INCOMPAT_SUPP,
+ EXT2_LIB_FEATURE_RO_COMPAT_SUPP };
+ __u32 jrnl_supp[3] = { JFS_KNOWN_COMPAT_FEATURES,
+ JFS_KNOWN_INCOMPAT_FEATURES,
+ JFS_KNOWN_ROCOMPAT_FEATURES };
+
+ if (argc > 1) {
+ ret = find_supp_feature(supp, E2P_FS_FEATURE, argv[1]);
+ if (ret) {
+ ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE,
+ argv[1]);
+ }
+ if (ret)
+ com_err(argv[0], 0, "Unknown feature: %s\n", argv[1]);
+ else
+ fprintf(stdout, "Supported feature: %s\n", argv[1]);
+ } else {
+ fprintf(stdout, "Supported features:");
+ ret = find_supp_feature(supp, E2P_FS_FEATURE, NULL);
+ ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, NULL);
+ }
+}
+
+#ifndef READ_ONLY
+void do_punch(int argc, char *argv[])
+{
+ ext2_ino_t ino;
+ blk64_t start, end;
+ int err;
+ errcode_t errcode;
+
+ if (common_args_process(argc, argv, 3, 4, argv[0],
+ "<file> start_blk [end_blk]",
+ CHECK_FS_RW | CHECK_FS_BITMAPS))
+ return;
+
+ ino = string_to_inode(argv[1]);
+ if (!ino)
+ return;
+ err = strtoblk(argv[0], argv[2], &start);
+ if (err)
+ return;
+ if (argc == 4) {
+ err = strtoblk(argv[0], argv[3], &end);
+ if (err)
+ return;
+ } else
+ end = ~0;
+
+ errcode = ext2fs_punch(current_fs, ino, 0, 0, start, end);
+
+ if (errcode) {
+ com_err(argv[0], errcode,
+ "while truncating inode %u from %llu to %llu\n", ino,
+ (unsigned long long) start, (unsigned long long) end);
+ return;
+ }
+}
+#endif /* READ_ONLY */
+
+void do_symlink(int argc, char *argv[])
+{
+ char *cp;
+ ext2_ino_t parent;
+ char *name, *target;
+ errcode_t retval;
+
+ if (common_args_process(argc, argv, 3, 3, "symlink",
+ "<filename> <target>", CHECK_FS_RW))
+ return;
+
+ cp = strrchr(argv[1], '/');
+ if (cp) {
+ *cp = 0;
+ parent = string_to_inode(argv[1]);
+ if (!parent) {
+ com_err(argv[1], ENOENT, 0);
+ return;
+ }
+ name = cp+1;
+ } else {
+ parent = cwd;
+ name = argv[1];
+ }
+ target = argv[2];
+
+try_again:
+ retval = ext2fs_symlink(current_fs, parent, 0, name, target);
+ if (retval == EXT2_ET_DIR_NO_SPACE) {
+ retval = ext2fs_expand_dir(current_fs, parent);
+ if (retval) {
+ com_err(argv[0], retval, "while expanding directory");
+ return;
+ }
+ goto try_again;
+ }
+ if (retval) {
+ com_err("ext2fs_symlink", retval, 0);
+ return;
+ }
+
+}
+
+void do_dump_mmp(int argc EXT2FS_ATTR((unused)), char *argv[])
+{
+#if CONFIG_MMP
+ struct ext2_super_block *sb;
+ struct mmp_struct *mmp_s;
+ time_t t;
+ errcode_t retval = 0;
+
+ if (check_fs_open(argv[0]))
+ return;
+
+ sb = current_fs->super;
+
+ if (current_fs->mmp_buf == NULL) {
+ retval = ext2fs_get_mem(current_fs->blocksize,
+ ¤t_fs->mmp_buf);
+ if (retval) {
+ com_err(argv[0], retval, "allocating MMP buffer.\n");
+ return;
+ }
+ }
+
+ mmp_s = current_fs->mmp_buf;
+
+ retval = ext2fs_mmp_read(current_fs, current_fs->super->s_mmp_block,
+ current_fs->mmp_buf);
+ if (retval) {
+ com_err(argv[0], retval, "reading MMP block.\n");
+ return;
+ }
+
+ t = mmp_s->mmp_time;
+ fprintf(stdout, "block_number: %llu\n", current_fs->super->s_mmp_block);
+ fprintf(stdout, "update_interval: %d\n",
+ current_fs->super->s_mmp_update_interval);
+ fprintf(stdout, "check_interval: %d\n", mmp_s->mmp_check_interval);
+ fprintf(stdout, "sequence: %08x\n", mmp_s->mmp_seq);
+ fprintf(stdout, "time: %lld -- %s", mmp_s->mmp_time, ctime(&t));
+ fprintf(stdout, "node_name: %s\n", mmp_s->mmp_nodename);
+ fprintf(stdout, "device_name: %s\n", mmp_s->mmp_bdevname);
+ fprintf(stdout, "magic: 0x%x\n", mmp_s->mmp_magic);
+ fprintf(stdout, "checksum: 0x%08x\n", mmp_s->mmp_checksum);
+#else
+ fprintf(stdout, "MMP is unsupported, please recompile with "
+ "--enable-mmp\n");
+#endif
+}
+
+static int source_file(const char *cmd_file, int ss_idx)