tt-extract.c

   1 /*
   2  *      IDOS Timetable Extractor
   3  *
   4  *      (c) 2013 Tomas Pokorny <jethro@kam.mff.cuni.cz>
   5  *
   6  *      This software can be freely distributed and used according
   7  *      to the terms of the GNU General Public License.
   8  */
   9
  10 #include <stdlib.h>
  11 #include <stdio.h>
  12 #include <inttypes.h>
  13 #include <sys/stat.h>
  14 #include <errno.h>
  15 #include <stdbool.h>
  16
  17
  18
  19 FILE * in;
  20
  21 void print_strings(uint32_t offset)
  22 {
  23         fseek(in,offset,SEEK_SET);
  24         int32_t count;
  25
  26         fread(&count,1,sizeof(count),in);
  27         printf("Will read %d strings\n",count);
  28
  29         int32_t  * indexes;
  30         indexes = malloc(sizeof(int32_t)*(count+1));
  31
  32
  33         for (int i=0;i<=count;i++){
  34                 fread(indexes+i,1,sizeof(int32_t),in);
  35         }
  36         fseek(in,4,SEEK_CUR);
  37
  38         char buf[4096];
  39         for (int i=0;i<count;i++){
  40                 fread(buf,indexes[i+1]-indexes[i],1,in);
  41                 for (int j=0; j<indexes[i+1]-indexes[i];j++)
  42                         printf("%c",buf[j]);
  43                 printf("\n");
  44         }
  45
  46 }
  47
  48 int main(int argc, char * argv[])
  49 {
  50         in = fopen(argv[1], "r");
  51         int32_t x;
  52         int32_t y;
  53         FILE * out;
  54         int32_t len;
  55         int32_t count;
  56         int32_t next;
  57         int32_t chunks;
  58         int32_t blocks;
  59         uint8_t * int_count;
  60                 char key;
  61                 int nulls;
  62
  63         next=0x6F;
  64 /*      fclose(fopen("data/strings.dat","w"));
  65         fclose(fopen("data/stations.dat","w"));
  66
  67         fseek(in,next,SEEK_SET);
  68         printf("Reading header\n");
  69         fread(&len,1,sizeof(count),in);
  70         fread(&blocks,1,sizeof(blocks),in);
  71         int_count = malloc(blocks);
  72         for (int i=0;i<blocks;i++)
  73                 int_count[i]=2;
  74         printf("Len: %d, blocks: %d\n",len,blocks);
  75         next = ftell(in)+len;
  76         if (!(len%blocks==0))
  77                 printf("Skipping, header had changed.\n");
  78         else{
  79
  80                 int rec_len;
  81                 rec_len=len/blocks;
  82                 int32_t buf[rec_len];
  83                 for (int i=blocks;i>0;i--){
  84                         fread(buf,1,rec_len,in);
  85                         for (int j=0;j<rec_len;j++)
  86                                 printf("%x ",buf[j]);
  87                         printf("\n");
  88                 }
  89         }*/
  90         print_strings(next);
  91         next=0xFB;
  92         print_strings(next);
  93         next=0x20B;
  94         print_strings(next);
  95         printf("At: %x\n",ftell(in));
  96
  97         //Banky
  98         next=0x4E71C;
  99         print_strings(next);
 100         printf("At: %x\n",ftell(in));
 101
 102         //Bankomaty
 103         next=0x59824;
 104         print_strings(next);
 105         printf("At: %x\n",ftell(in));
 106
 107         //Bezbariérové stanice
 108         next=0x6184C;
 109         print_strings(next);
 110         printf("At: %x\n",ftell(in));
 111
 112         // Divadla
 113         next=0x622CA;
 114         print_strings(next);
 115         printf("At: %x\n",ftell(in));
 116
 117         next=0x676AA;
 118         print_strings(next);
 119         printf("At: %x\n",ftell(in));
 120
 121
 122 }
 123
 124