#
#  This code depends on heimdal's asn1_compile generated krb5 decoding
#  stuff. The code is originally from rxkad that Björn Grönvall
#  <bg@sics.se> for kth-krb and was included in Arla.
#
#  The first file, v5der.c are part for of support functions
#  that all generated files depends on.
#
#  The second file (v5gen.h) is the header file that is generated for
#  the decoding functions.
#
#  The third file (v5gen.c) is the subset of the generated functions we
#  need to decode the authenticator.
#
#  The forth file (v5gen-rewrite.h) is used to make sure we don't
#  pollute the namespace.
#
#  All files are modified to build within OpenAFS environment without
#  any external dependencies. Below is the shell script that is used to
#  import the code into the four files.
#
#  All internal symbols are rewritten to _rxkad_v5_.
#

# Make sure we don't export too much
#
# : lha@nutcracker ; nm ticket5.o | grep T | grep -v _rxkad_v5
# 00005748 T tkt_DecodeTicket5
#


htree=/home/lha/src/cvs/heimdal
hotree=/sources/obj/heimdal
otree=/sources/afs/openafs-rxkad5

export htree hotree otree

(cd $htree/lib/asn1 ; \
 echo '#include "asn1_err.h"'; \
 echo '#include <errno.h>'; \
 echo '#include <limits.h>'; \
 cat  timegm.c \
 der_get.c \
 der_put.c \
 der_free.c \
 der_length.c \
 der_copy.c \
)  \
| grep -v 'include "der_locl.h"' \
| grep -v 'include <version.h>' \
| sed 's!\(RCSID.*\)!/* \1 */!' \
| sed 's!$Id: !Heimdal: !' \
> $otree/src/rxkad/v5der.c

grep -v 'struct units'  $hotree/lib/asn1/krb5_asn1.h \
 | sed s/uint16_t/afs_uint16/ \
 | sed s/uint32_t/afs_uint32/ \
   > $otree/src/rxkad/v5gen.h

cp  $hotree/lib/asn1/der-protos.h \
    $otree/src/rxkad/der-protos.h

< $hotree/lib/asn1/asn1_err.h \
 sed 's!#include <et/com_err[.]h>!struct et_list;!' \
 > $otree/src/rxkad/asn1_err.h

(cd $hotree/lib/asn1 ; \
 echo '#define HEIMDAL_UNUSED_ATTRIBUTE AFS_UNUSED' ; \
 cat krb5_asn1-priv.h ; \
 cat asn1_krb5_asn1.x ) \
 | grep -v 'include <krb5-types.h>' \
 | grep -v 'include "krb5_asn1.h"' \
 | grep -v 'include "krb5_asn1-priv.h"' \
 | grep -v 'include <der.h>' \
 | grep -v 'include <der-private.h>' \
 | grep -v 'include <parse_units.h>' \
 | grep -v 'include <asn1-template.h>' \
 | perl \
   -e '$f=0; while(<>){$f=1 if(/struct units/);print if($f eq 0);$f=0 if(/^}/);}' \
 | sed -n '/^encode_Checksum[(]/q;p' \
 | head -n -2 \
 > $otree/src/rxkad/v5gen.c

( \
 perl -p -e 's/^(encode_|decode_|free_|copy_|length_)([^(]*)\([^)]*\)\n$/#define $1$2 _rxkad_v5_$1$2\n/' $otree/src/rxkad/v5gen.c ; \
  perl -p -e 's/^(der_|copy_|encode_|decode_|len_|length_|free_|fix_dce|time2generalizedtime)([^( ]*).*/#define $1$2 _rxkad_v5_$1$2/' $otree/src/rxkad/v5der.c ; \
  echo '#define TicketFlags2int _rxkad_v5_TicketFlags2int' ; \
  echo '#define int2TicketFlags _rxkad_v5_int2TicketFlags' ; \
  : ) | \
  grep _rxkad_v5 \
  > $otree/src/rxkad/v5gen-rewrite.h

( \
  < $otree/src/rxkad/v5gen.c \
  indent -npro -nbad -bap -nbc -br -ce -cd4 -brs -ncdb -di2 -ndj -nfc1 -i4 -lp -npcs -psl -sc -nsob \
  > $otree/src/rxkad/v5gen.c.indent ; \
  mv $otree/src/rxkad/v5gen.c.indent $otree/src/rxkad/v5gen.c \
)