On most systems where we compile e2fsprogs, the u64 type is an
unsigned long long.  However, there are platforms (such as the
PowerPC) where a long 64-bits and so u64 is typedef'ed to be unsigned
long instead of a unsigned long long.  Fix this by using explicit
casts in printf statements.  For scanf calls, we need to receive the
value into a unsigned long long, and then assign it to a u64, after
doing range checks.

Signed-off-by: Theodore Ts'o <tytso@mit.edu>

Print inode numbers as unsigned values, to avoid printing negative
numbers for inodes above 2B.

Flags should be printed as hex instead of signed decimal values.

Signed-off-by: Andreas Dilger <adilger@whamcloud.com>
Lustre-bug-id: https://jira.whamcloud.com/browse/LU-13197
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

To do this we need to export the ext2fs_dx_csum() function from
libext2fs.

Signed-off-by: Theodore Ts'o <tytso@mit.edu>

Also remove nls.h, and avoid declaring static functions and variables
in a header file, which is wasteful of space.

Signed-off-by: Theodore Ts'o <tytso@mit.edu>

Fix the following bugs:

1. 'encoding' and 'hash_flags' are not initialized, causing a segfault.

2. 'hash_flags' incorrectly uses a __bitwise type.

3. The optstring doesn't contain "c" or "e", so the -c and -e options
   aren't recognized.

4. The code that handles the -e option always returns.

Fixes: ef733f1a97ec ("debugfs: support encoding when printing the file hash")
Reviewed-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

Implement two parameters -e and -c, to specify encoding and casefold
when printing the hash of a given file.

Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

Signed-off-by: Theodore Ts'o <tytso@mit.edu>

Signed-off-by: Sebastian Rasmussen <sebras@gmail.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Andreas Dilger <adilger@dilger.ca>