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Diffstat (limited to 'src/extractstreets.c')
-rw-r--r--src/extractstreets.c66
1 files changed, 0 insertions, 66 deletions
diff --git a/src/extractstreets.c b/src/extractstreets.c
deleted file mode 100644
index 097a736..0000000
--- a/src/extractstreets.c
+++ /dev/null
@@ -1,66 +0,0 @@
1#include <sys/types.h>
2#include <sys/stat.h>
3#include <sys/mman.h>
4#include <strings.h>
5#include <stdio.h>
6#include <fcntl.h>
7
8int main( int args, char **argv )
9{
10 int toindex;
11 int i, run = 1, filenum = 0, offset = 0, oldoffset = -1;
12 struct stat fstatus;
13 unsigned char *mappedfile;
14
15 if( args != 2 )
16 { fputs( "Missing filenames.", stderr ); exit( 1 ); }
17
18 if( ( toindex = open( argv[1], O_RDONLY ) ) < 0 )
19 { fprintf( stderr, "Can't open file: %s.\n", argv[1] ); exit( toindex ); }
20
21 fstat( toindex, &fstatus );
22
23 printf( "Size of file: %d\n", fstatus.st_size );
24
25 if( ( mappedfile = mmap( NULL, (size_t)fstatus.st_size, PROT_READ | PROT_WRITE, MAP_NOCORE | MAP_PRIVATE, toindex, 0) ) == MAP_FAILED )
26 { fprintf( stderr, "Can't mmap file: %s.", argv[1] ); exit( 1 ); }
27
28 while( run )
29 {
30 while( ( offset < fstatus.st_size ) && (
31 ( mappedfile[ offset + 0 ] != 0x22 ) ||
32 ( mappedfile[ offset + 2 ] != 0x2d ) ||
33 ( mappedfile[ offset + 3 ] != 0x6c ) ||
34 ( mappedfile[ offset + 4 ] != 0x68 ) ||
35 ( ( mappedfile[ offset + 5 ] != 0x35 ) && ( mappedfile[ offset + 5 ] != 0x30 )) ||
36 ( mappedfile[ offset + 6 ] != 0x2d )
37 ) ) offset++;
38
39 printf( "Found an appropriate offset at: %d\n", oldoffset );
40
41 if( offset == fstatus.st_size )
42 run = 0;
43
44 if( oldoffset != -1 )
45 {
46 unsigned long *mf = (unsigned long*)(mappedfile + oldoffset);
47 unsigned char filename[20], cs = 0;
48
49 snprintf( filename, sizeof( filename ), "%012d.lha", filenum++ );
50
51 memcpy( ((unsigned char*)mf) + 22, filename, 12);
52
53 for( i=2; i<36; ++i)
54 cs += ((unsigned char*)mf)[i];
55 ((unsigned char*)mf)[1] = cs;
56
57 i = open( filename, O_CREAT | O_TRUNC | O_WRONLY, 0644 );
58 write( i, mf, offset - oldoffset );
59 close( i );
60 }
61 oldoffset = offset;
62 offset++;
63 }
64
65 return 0;
66}