+static void mapfileino __P((ino_t ino, long *tapesize, int *dirskipped));
+
+/* #define EXT3_FEATURE_INCOMPAT_RECOVER */
+
+int dump_fs_open(const char *disk, ext2_filsys *fs)
+{
+ int retval;
+ struct ext2fs_sb *s;
+
+#ifdef EXT3_FEATURE_INCOMPAT_RECOVER
+ retval = ext2fs_open(disk, EXT2_FLAG_FORCE, 0, 0, unix_io_manager, fs);
+#else
+ retval = ext2fs_open(disk, 0, 0, 0, unix_io_manager, fs);
+#endif
+ if (!retval) {
+ s = (struct ext2fs_sb *) (*fs)->super;
+ if ((s->s_feature_compat & ~EXT2_LIB_FEATURE_COMPAT_SUPP) ||
+#ifdef EXT3_FEATURE_INCOMPAT_RECOVER
+ (s->s_feature_incompat & ~(EXT3_FEATURE_INCOMPAT_RECOVER | EXT2_LIB_FEATURE_INCOMPAT_SUPP))) {
+#else
+ (s->s_feature_incompat & ~EXT2_LIB_FEATURE_INCOMPAT_SUPP)) {
+#endif
+ retval = EXT2_ET_UNSUPP_FEATURE;
+ }
+ else if (s->s_feature_ro_compat & ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP) {
+ retval = EXT2_ET_RO_UNSUPP_FEATURE;
+ }
+ }
+ return retval;
+}