From 046857dfb88f05e6b310fe9ef07b9f2d3ac5922d Mon Sep 17 00:00:00 2001
From: Dirk Engling <erdgeist@erdgeist.org>
Date: Thu, 20 Feb 2014 22:42:56 +0100
Subject: Restructure project, make names more clear

---
 src/extractblocks_new.c | 131 ------------------------------------------------
 1 file changed, 131 deletions(-)
 delete mode 100644 src/extractblocks_new.c

(limited to 'src/extractblocks_new.c')

diff --git a/src/extractblocks_new.c b/src/extractblocks_new.c
deleted file mode 100644
index fe85252..0000000
--- a/src/extractblocks_new.c
+++ /dev/null
@@ -1,131 +0,0 @@
-#include <fcntl.h>
-#include "mystdlib.h"
-#include <stdlib.h>
-#include <string.h>
-#include <stdint.h>
-#include <unistd.h>
-
-/* lha header:
-
-00 Header length
-01 Header checksum [02-length]
-02 0x2d  ('-')
-03 0x6c  ('l')
-04 0x68  ('h')
-05 0x??  ('0' or '5') unsure
-06 0x2d  ('-')
-07 0x??  LSB of compressed size
-08 0x??  ..
-09 0x00  ..
-10 0x00  MSB of compressed size, i.e. 0
-..
-21       Length of path name
-
-
-*/
-
-static uint8_t mantra_in[] = { 0x68, 0x35, 0x2d, 0x6c };
-
-int main( int args, char **argv )
-{
-  int      filenum = 0, run = 1;
-  size_t   offset = 0, oldoffset = -1, reported = 0, enc_len = 32;
-  uint8_t  mantra[4], id0, id5, *mappedfile;
-  MAP      map;
-
-  /* For streets we do have a enc_len of 34 */
-  while( run ) {
-    switch( getopt( args, argv, ":e:" ) ) {
-      case -1 : run = 0; break;
-      case 'e':
-        enc_len = atol( optarg );
-        break;
-      default:
-        fputs( "Syntax: %s [-e encrypted_length (default: 32, for streets 34 or 0)] path-to-teiln.dat", stderr ); exit( 1 );
-        break;
-    }
-  }
-  run = 1;
-
-  if( optind == args  )
-    { fputs( "Missing filename.", stderr ); exit( 1 ); }
-
-  map = map_file( argv[optind], 1 );
-  mappedfile = map->addr;
-
-  mantra[0] = mantra_in[0] ^ mappedfile[4];
-  mantra[1] = mantra_in[1] ^ mappedfile[5];
-  mantra[2] = mantra_in[2] ^ mappedfile[2];
-  mantra[3] = mantra_in[3] ^ mappedfile[3];
-
-  id0 = mappedfile[0];
-  id5 = mappedfile[5];
-
-  while( run )
-  {
-    while( ( offset < map->size ) && (
-           ( mappedfile[ offset + 0 ] != id0                         ) ||
-           ( mappedfile[ offset + 2 ] != ( '-'          ^ mantra[2] )) ||
-           ( mappedfile[ offset + 3 ] != ( 'l'          ^ mantra[3] )) ||
-           ( mappedfile[ offset + 4 ] != ( 'h'          ^ mantra[0] )) ||
-           ( mappedfile[ offset + 5 ] != id5                         ) ||
-           ( mappedfile[ offset + 6 ] != ( '-'          ^ mantra[2] ))
-          ) ) offset++;
-
-    // printf( "Found an appropriate offset at: %zd\n", offset );
-
-    if( reported < ( offset * 10 ) / map->size )
-    {
-      reported++;
-      printf( "%zd%% ", 10 * reported );
-      fflush( stdout );
-    }
-
-    if( offset == map->size )
-        run = 0;
-
-    if( oldoffset != -1 )
-    {
-        uint8_t *mf = mappedfile + oldoffset, df[128];
-        size_t filename_len, header_len;
-        char filename_template[32], filename[32];
-        int i;
-
-        /* De-"crypt" obfuscation to our header copy */
-        for( i=0; i<enc_len; ++i)
-           df[i] = mf[i] ^ mantra[i%4];
-
-        /* Get values from LHA header */
-        header_len = df[0] + 2;
-        filename_len = df[21];
-
-        /* Copy rest of header, so we can checksum */
-        for( i=enc_len; i<header_len; ++i)
-           df[i] = mf[i];
-
-        /* Make up new sequental file name */
-        snprintf( filename_template, sizeof(filename_template), "%%0%dd.lha", (int)filename_len );
-        snprintf( filename, sizeof( filename ), filename_template, filenum++ );
-        memcpy( ((uint8_t*)df) + 22, filename, filename_len);
-
-        /* Recalculate checksum with new file name */
-        df[1] = 0; for( i=2; i<header_len; ++i) df[1] += df[i];
-
-        /* Open file and dump our de-"crypted" header and then rest of file */
-        i = open( filename, O_CREAT | O_TRUNC | O_WRONLY, 0644 );
-        if( enc_len > header_len ) {
-            write( i, df, enc_len );
-            write( i, mf + enc_len, offset - oldoffset - enc_len );
-        } else {
-            write( i, df, header_len );
-            write( i, mf + header_len, offset - oldoffset - header_len );
-        }
-        close( i );
-    }
-    oldoffset = offset;
-    offset++;
-  }
-
-  unmap_file( &map );
-  return 0;
-}
-- 
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