# $File: kerberos,v 1.3 2019/04/19 00:42:27 christos Exp $

#------------------------------------------------------------------------------
# $File: kerberos,v 1.3 2019/04/19 00:42:27 christos Exp $
# kerberos: MIT kerberos file binary formats
#

# This magic entry is for demonstration purposes and could be improved
# if the following features were implemented in file:
#
# Strings inside [[ .. ]] in the descriptions have special meanings and
# are not printed.
#
# - Provide some form of iteration in number of components
# [[${counter}=%d]] in the description
# then append
# [${counter}--] in the offset of the entries
# - Provide a way to round the next offset
# Add [R:4] after the offset?
# - Provide a way to have optional entries
# XXX: Syntax:
# - Provide a way to "save" entries to print them later.
# if the description is [[${name}=%s]], then nothing is
# printed and a subsequent entry in the same magic file
# can refer to ${name}
# - Provide a way to format strings as hex values
#
# https://www.gnu.org/software/shishi/manual/html_node/\
# The-Keytab-Binary-File-Format.html
#

0 name keytab_entry
#>0 beshort x \b, size=%d
#>2 beshort x \b, components=%d
>4 pstring/H x \b, realm=%s
>>&0 pstring/H x \b, principal=%s/
>>>&0 pstring/H x \b%s
>>>>&0 belong x \b, type=%d
>>>>>&0 bedate x \b, date=%s
>>>>>>&0 byte x \b, kvno=%u
#>>>>>>>&0 pstring/H x
#>>>>>>>>&0 belong x
#>>>>>>>>>>&0 use keytab_entry

0 belong 0x05020000 Kerberos Keytab file
>4 use keytab_entry