Handle bad extent type case

If we meet a bad extent type, find_updated_files is going
to print random things. Better warn the user about what
happens.

This fixes:

btrfs-list.c: Dans la fonction «find_updated_files» :
btrfs-list.c:668: attention : «disk_offset» may be used uninitialized in this function
btrfs-list.c:668: note: «disk_offset» was declared here
btrfs-list.c:667: attention : «disk_start» may be used uninitialized in this function
btrfs-list.c:667: note: «disk_start» was declared here
btrfs-list.c:666: attention : «len» may be used uninitialized in this function
btrfs-list.c:666: note: «len» was declared here
make: *** [btrfs-list.o] Erreur 1

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>

diff --git a/btrfs-list.c b/btrfs-list.c
index 112bed2..93766a8 100644 (file)
--- a/btrfs-list.c
+++ b/btrfs-list.c
@@ -698,6 +698,15 @@ static int print_one_extent(int fd, struct btrfs_ioctl_search_header *sh,
                disk_start = 0;
                disk_offset = 0;
                len = btrfs_stack_file_extent_ram_bytes(item);
+       } else {
+               printf("unhandled extent type %d for inode %llu "
+                      "file offset %llu gen %llu\n",
+                       type,
+                       (unsigned long long)sh->objectid,
+                       (unsigned long long)sh->offset,
+                       (unsigned long long)found_gen);
+
+               return -EIO;
        }
        printf("inode %llu file offset %llu len %llu disk start %llu "
               "offset %llu gen %llu flags ",