/*
 * Taken from the public domain ansitape program for 
 *   integration into Bacula. KES - Mar 2005
 */
/*
   Bacula® - The Network Backup Solution

   Copyright (C) 2006-2006 Free Software Foundation Europe e.V.

   The main author of Bacula is Kern Sibbald, with contributions from
   many others, a complete list can be found in the file AUTHORS.
   This program is Free Software; you can redistribute it and/or
   modify it under the terms of version two of the GNU General Public
   License as published by the Free Software Foundation and included
   in the file LICENSE.

   This program is distributed in the hope that it will be useful, but
   WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
   General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
   02110-1301, USA.

   Bacula® is a registered trademark of John Walker.
   The licensor of Bacula is the Free Software Foundation Europe
   (FSFE), Fiduciary Program, Sumatrastrasse 25, 8006 Zürich,
   Switzerland, email:ftf@fsfeurope.org.
*/


/* Mapping of EBCDIC codes to ASCII equivalents. */
static char to_ascii_table[256] = {
   '\000', '\001', '\002', '\003',
   '\234', '\011', '\206', '\177',
   '\227', '\215', '\216', '\013',
   '\014', '\015', '\016', '\017',
   '\020', '\021', '\022', '\023',
   '\235', '\205', '\010', '\207',
   '\030', '\031', '\222', '\217',
   '\034', '\035', '\036', '\037',
   '\200', '\201', '\202', '\203',
   '\204', '\012', '\027', '\033',
   '\210', '\211', '\212', '\213',
   '\214', '\005', '\006', '\007',
   '\220', '\221', '\026', '\223',
   '\224', '\225', '\226', '\004',
   '\230', '\231', '\232', '\233',
   '\024', '\025', '\236', '\032',
   '\040', '\240', '\241', '\242',
   '\243', '\244', '\245', '\246',
   '\247', '\250', '\133', '\056',
   '\074', '\050', '\053', '\041',
   '\046', '\251', '\252', '\253',
   '\254', '\255', '\256', '\257',
   '\260', '\261', '\135', '\044',
   '\052', '\051', '\073', '\136',
   '\055', '\057', '\262', '\263',
   '\264', '\265', '\266', '\267',
   '\270', '\271', '\174', '\054',
   '\045', '\137', '\076', '\077',
   '\272', '\273', '\274', '\275',
   '\276', '\277', '\300', '\301',
   '\302', '\140', '\072', '\043',
   '\100', '\047', '\075', '\042',
   '\303', '\141', '\142', '\143',
   '\144', '\145', '\146', '\147',
   '\150', '\151', '\304', '\305',
   '\306', '\307', '\310', '\311',
   '\312', '\152', '\153', '\154',
   '\155', '\156', '\157', '\160',
   '\161', '\162', '\313', '\314',
   '\315', '\316', '\317', '\320',
   '\321', '\176', '\163', '\164',
   '\165', '\166', '\167', '\170',
   '\171', '\172', '\322', '\323',
   '\324', '\325', '\326', '\327',
   '\330', '\331', '\332', '\333',
   '\334', '\335', '\336', '\337',
   '\340', '\341', '\342', '\343',
   '\344', '\345', '\346', '\347',
   '\173', '\101', '\102', '\103',
   '\104', '\105', '\106', '\107',
   '\110', '\111', '\350', '\351',
   '\352', '\353', '\354', '\355',
   '\175', '\112', '\113', '\114',
   '\115', '\116', '\117', '\120',
   '\121', '\122', '\356', '\357',
   '\360', '\361', '\362', '\363',
   '\134', '\237', '\123', '\124',
   '\125', '\126', '\127', '\130',
   '\131', '\132', '\364', '\365',
   '\366', '\367', '\370', '\371',
   '\060', '\061', '\062', '\063',
   '\064', '\065', '\066', '\067',
   '\070', '\071', '\372', '\373',
   '\374', '\375', '\376', '\377'
};


/* Mapping of ASCII codes to EBCDIC equivalents. */
static char to_ebcdic_table[256] = {
   '\000', '\001', '\002', '\003',
   '\067', '\055', '\056', '\057',
   '\026', '\005', '\045', '\013',
   '\014', '\015', '\016', '\017',
   '\020', '\021', '\022', '\023',
   '\074', '\075', '\062', '\046',
   '\030', '\031', '\077', '\047',
   '\034', '\035', '\036', '\037',
   '\100', '\117', '\177', '\173',
   '\133', '\154', '\120', '\175',
   '\115', '\135', '\134', '\116',
   '\153', '\140', '\113', '\141',
   '\360', '\361', '\362', '\363',
   '\364', '\365', '\366', '\367',
   '\370', '\371', '\172', '\136',
   '\114', '\176', '\156', '\157',
   '\174', '\301', '\302', '\303',
   '\304', '\305', '\306', '\307',
   '\310', '\311', '\321', '\322',
   '\323', '\324', '\325', '\326',
   '\327', '\330', '\331', '\342',
   '\343', '\344', '\345', '\346',
   '\347', '\350', '\351', '\112',
   '\340', '\132', '\137', '\155',
   '\171', '\201', '\202', '\203',
   '\204', '\205', '\206', '\207',
   '\210', '\211', '\221', '\222',
   '\223', '\224', '\225', '\226',
   '\227', '\230', '\231', '\242',
   '\243', '\244', '\245', '\246',
   '\247', '\250', '\251', '\300',
   '\152', '\320', '\241', '\007',
   '\040', '\041', '\042', '\043',
   '\044', '\025', '\006', '\027',
   '\050', '\051', '\052', '\053',
   '\054', '\011', '\012', '\033',
   '\060', '\061', '\032', '\063',
   '\064', '\065', '\066', '\010',
   '\070', '\071', '\072', '\073',
   '\004', '\024', '\076', '\341',
   '\101', '\102', '\103', '\104',
   '\105', '\106', '\107', '\110',
   '\111', '\121', '\122', '\123',
   '\124', '\125', '\126', '\127',
   '\130', '\131', '\142', '\143',
   '\144', '\145', '\146', '\147',
   '\150', '\151', '\160', '\161',
   '\162', '\163', '\164', '\165',
   '\166', '\167', '\170', '\200',
   '\212', '\213', '\214', '\215',
   '\216', '\217', '\220', '\232',
   '\233', '\234', '\235', '\236',
   '\237', '\240', '\252', '\253',
   '\254', '\255', '\256', '\257',
   '\260', '\261', '\262', '\263',
   '\264', '\265', '\266', '\267',
   '\270', '\271', '\272', '\273',
   '\274', '\275', '\276', '\277',
   '\312', '\313', '\314', '\315',
   '\316', '\317', '\332', '\333',
   '\334', '\335', '\336', '\337',
   '\352', '\353', '\354', '\355',
   '\356', '\357', '\372', '\373',
   '\374', '\375', '\376', '\377'
};


/*
 * Convert from ASCII to EBCDIC 
 */
void ascii_to_ebcdic(char *dst, char *src, int count)
{
   while (count--) {
      *dst++ = to_ebcdic_table[0377 & *src++];
   }
}


/*
 * Convert from EBCDIC to ASCII
 */
void ebcdic_to_ascii(char *dst, char *src, int count)
{
   while (count--) {
      *dst++ = to_ascii_table[0377 & *src++];
   }
}