Dump accepts ext3 filesystems. Checking the superblock features.

[dump.git] / dump / traverse.c

diff --git a/dump/traverse.c b/dump/traverse.c
index 32ffd7ef4df4c8b9b54f9ab8f15247e092808b27..7d6a38f02f8dd7fa1db2cc35d56d0558f3401c9c 100644 (file)
--- a/dump/traverse.c
+++ b/dump/traverse.c
@@ -40,7 +40,7 @@
 
 #ifndef lint
 static const char rcsid[] =
-       "$Id: traverse.c,v 1.9 1999/11/21 00:17:16 tiniou Exp $";
+       "$Id: traverse.c,v 1.10 1999/11/21 02:24:47 tiniou Exp $";
 #endif /* not lint */
 
 #include <sys/param.h>
@@ -100,6 +100,35 @@ static     int searchdir __P((ino_t ino, daddr_t blkno, long size, long filesize));
 #endif
 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;
+}
+
 /*
  * This is an estimation of the number of TP_BSIZE blocks in the file.
  * It estimates the number of blocks in files with holes by assuming