xiao liang liu nsfzqtjpcnibmcom following array used find corresponding ebcdic value ascii char think useful extern const unsigned char ascii_to_ebcdic256 00 0x00 0x01 0x02 0x03 0x37 0x2d 0x2e 0x2f 0x16 0x05 0x15 0x0b 0x0c 0x0d 0x0e 0x0f 10 0x10 0x11 0x12 0x13 0x3c 0x3d 0x32 0x26 0x18 0x19 0x3f 0x27 0x1c 0x1d 0x1e 0x1f 20 0x40 0x5a 0x7f 0x7b 0x5b 0x6c 0x50 0x7d 0x4d 0x5d 0x5c 0x4e 0x6b 0x60 0x4b 0x61 30 0xf0 0xf1 0xf2 0xf3 0xf4 0xf5 0xf6 0xf7 0xf8 0xf9 0x7a 0x5e 0x4c 0x7e 0x6e 0x6f 40 0x7c 0xc1 0xc2 0xc3 0xc4 0xc5 0xc6 0xc7 0xc8 0xc9 0xd1 0xd2 0xd3 0xd4 0xd5 0xd6 50 0xd7 0xd8 0xd9 0xe2 0xe3 0xe4 0xe5 0xe6 0xe7 0xe8 0xe9 0xad 0xe0 0xbd 0x5f 0x6d 60 0x79 0x81 0x82 0x83 0x84 0x85 0x86 0x87 0x88 0x89 0x91 0x92 0x93 0x94 0x95 0x96 70 0x97 0x98 0x99 0xa2 0xa3 0xa4 0xa5 0xa6 0xa7 0xa8 0xa9 0xc0 0x4f 0xd0 0xa1 0x07 80 0x20 0x21 0x22 0x23 0x24 0x25 0x06 0x17 0x28 0x29 0x2a 0x2b 0x2c 0x09 0x0a 0x1b 90 0x30 0x31 0x1a 0x33 0x34 0x35 0x36 0x08 0x38 0x39 0x3a 0x3b 0x04 0x14 0x3e 0xff a0 0x41 0xaa 0x4a 0xb1 0x9f 0xb2 0x6a 0xb5 0xbb 0xb4 0x9a 0x8a 0xb0 0xca 0xaf 0xbc b0 0x90 0x8f 0xea 0xfa 0xbe 0xa0 0xb6 0xb3 0x9d 0xda 0x9b 0x8b 0xb7 0xb8 0xb9 0xab c0 0x64 0x65 0x62 0x66 0x63 0x67 0x9e 0x68 0x74 0x71 0x72 0x73 0x78 0x75 0x76 0x77 d0 0xac 0x69 0xed 0xee 0xeb 0xef 0xec 0xbf 0x80 0xfd 0xfe 0xfb 0xfc 0xba 0xae 0x59 e0 0x44 0x45 0x42 0x46 0x43 0x47 0x9c 0x48 0x54 0x51 0x52 0x53 0x58 0x55 0x56 0x57 f0 0x8c 0x49 0xcd 0xce 0xcb 0xcf 0xcc 0xe1 0x70 0xdd 0xde 0xdb 0xdc 0x8d 0x8e 0xdf best regards liu xiaoliang 刘晓亮 zos development perl level 3 support cstl ibm china development lab tel 862160928141 fax 862150806868 notes id xiao liang liuchinaibm email liuxiaolcnibmcom 4f 78 lane 887 zu chong zhi road zhang jiang high tech park shanghai china 201203 chun bing gechinacontrib mibmcn 20071102 1800 cc abhijit menonsen perl5portersperlorg xiao liang liuchinaibmibmcn subject patch extio_compress_zlibt101truncate deflatet ebcdic platform paul marquess wrote 20071102 174001 chun bing ge mailtogecbcnibmcom patch orda 193 gzip_fname_invalid_char_re x00x3fxff gzip_fcomment_invalid_char_re x00x0ax11x14x16x3f xff else gzip_fname_invalid_char_re x00x1fx7fx9f gzip_fcomment_invalid_char_re x00x09x11x1fx7fx9f correct change right rewrote 1st patch 2nd one elegant way could find two patches data ok new one certainly looks better ill go similarly made change extcompresszlibt03zlibv1t value ascii zgrntjgsuw data x5ax67x52x4ex74x6ax67x53x55x57 expected_crc 0xcf707a2b 3480255019 mean change shouldnt needed data zgrntjgsuw crc32 data high bit set expected_crc 0xcf707a2b 3480255019 orda 193 expected_crc 0x109df497 278787223 could save 1st way reason rewrote patch person always would like see direct words hex values linux zos think also tested cases linux changed input data ebcdic values perl would give results zos one things test create crc significant bit set change loses ill keep test way regarding patches sent one 004gziphdrt already done previous patch rest patches io_compress_zlibt101truncatet series tests form orda 193 plan tests 744 extra else plan tests 734 extra given patching 595 dont know whether needed recent development version dont see anything test harness would account extra 10 tests ill hold applying think better way could give answer could change source data test cases ebcdic values linux like abc x81x82x83 could get many extra tests run get latest perl source tree see issues please would like busy things possible anyone else running ebcdic validate blead particular see io_compress_zlibt101truncatet tests need patching paul thu 07 aug 2008 201042 0800 patch extio_compress_zlibt101truncatedeflatet ebcdic platform