From d302eb1e2855760e8038b7e1377e06f729e2c900 Mon Sep 17 00:00:00 2001 From: Dirk Engling Date: Sat, 22 Feb 2014 05:18:52 +0100 Subject: First version, exports most of the records --- src/export/extract_version_1.c | 120 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 120 insertions(+) create mode 100644 src/export/extract_version_1.c (limited to 'src') diff --git a/src/export/extract_version_1.c b/src/export/extract_version_1.c new file mode 100644 index 0000000..be6aa1b --- /dev/null +++ b/src/export/extract_version_1.c @@ -0,0 +1,120 @@ +#include +#include +#include +#include +#include "mystdlib.h" + +static char xlat_table[] = { + 0x00, 0x09, 0x02, 0x03, 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, + 0x2c, 0x2d, 0x2e, 0x2f, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, + 0x3c, 0x3d, 0x3e, 0x3f, 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, + 0x4c, 0x4d, 0x4e, 0x4f, 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x5f, + 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, + 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0xc7, 0xfc, 0xe9, 0xe2, 0xe4, 0xe0, + 0xe5, 0xe7, 0xea, 0xeb, 0xe8, 0xef, 0xee, 0xec, 0xc4, 0xc5, 0xc9, 0xe6, 0xc6, 0xf4, 0xf6, 0xf2, + 0xfb, 0xf9, 0xff, 0xd6, 0xdc, 0xe1, 0xed, 0xf3, 0xfa, 0xf1, 0xd1, 0xdf, 0x5b, 0x5c, 0x5d, 0x60 +}; + +void decode_7bit_string( uint8_t const *source, uint8_t *dest ) +{ + uint16_t acc = 0, acc_bits = 0; + while( 1 ) + { + acc = acc*256+*(source++); ++acc_bits; +again: + *(dest++) = xlat_table[ 0x7f & ( acc >> acc_bits ) ]; + if( !dest[-1] ) return; + if( acc_bits == 7 ) { acc_bits = 0; goto again; } + } +} +int fromhex( uint8_t a ) { if(a >='0'&&a<='9')return a-'0';if(a>='a'&&a<='f') return 10+a-'a'; if(a>='A'&&a<='F') return 10+a-'A'; exit(1); } + +void act_on_record( int flag, uint8_t *page, uint16_t record_off ) +{ + uint8_t * record = page + record_off; + uint8_t outbuf[8192], * out_dest = outbuf; + int num_entries = *(uint16_t*)record; + + printf( " Found record with %d entries at %04x.\n", num_entries, record_off ); + if( record_off > 0x1fff ) { + printf( "NEG!!!" ); + record_off ^= 0xffff; + record_off++; + } + + if( !flag ) + { + record += 2; + if( *(uint16_t*)record ) + { + decode_7bit_string( page + *(uint16_t*)record, outbuf ); + out_dest += strlen( (char*)outbuf ); + } + } + + /* ignore prefix for now */ + decode_7bit_string( record + 2, out_dest ); + puts( (char*)outbuf ); +} + +/* Page is always 0x2000 */ +void act_on_page( uint8_t *page, int page_nr ) +{ + int record, flag = page[0]; + int blob_len = *(uint16_t*)(page + 0x2); + int num_records = *(uint16_t*)(page + 0x4); + uint16_t * recs = (uint16_t*)(page + 0xe); + + printf( " Acting on page %04d with flag %d and %04d records.\n", page_nr, flag, num_records ); + + if( blob_len ) + { + uint8_t outbuf[8192]; + printf( "-------- PAGE IS BLOB --------" ); + decode_7bit_string( page + 0x6, outbuf ); + puts( (char *)outbuf ); + } else + for( record = 0; record < num_records; ++record ) + act_on_record( flag, page + 0xe, recs[record] ); +} + +void act_on_file( uint8_t *file, size_t len ) +{ + int page, num_pages = *(uint16_t*)(file+0x40); + int num_records = *(uint32_t*)(file+0x42); + char *gasse = (char *)file + 0x8e; + char *ort = gasse + 1 + strlen(gasse); + char *zip = ort + 1 + strlen(ort); + char *vorwahl = zip + 1 + strlen(zip); + + printf( "Working on a %04d page and %06d records file, city: %4s %-32s with prefix %s\n", num_pages, num_records, zip, ort, vorwahl ); + + for( page = 0; page < num_pages; ++page ) + act_on_page( file + 0x800 + 0x2000 * page, page ); +} + +int main( int args, char **argv ) +{ + MAP f = map_file( argv[1], 1 ); + + act_on_file( f->addr, f->size ); + + unmap_file( &f ); + return 0; +} + +/* +int main() +{ + uint8_t chars[2048], in[1024], out[2048]; + int i = 0; + fgets( chars, sizeof(chars), stdin ); + + while( chars[i*2] > 32 && chars[i*2+1] > 32 ) + { + in[i] = ( fromhex( chars[i*2] ) << 4 ) + fromhex( chars[i*2+1] ); + i++; + } + decode_7bit_string( in, i, out ); + printf( "%s\n", out ); +} */ -- cgit v1.2.3