rom/filesys/CDVDFS/src/joliet.c

   1 #include <proto/exec.h>
   2 #include <exec/memory.h>
   3 #include <stdlib.h>
   4 #include <string.h>
   5
   6 #include "debug.h"
   7 #include "iso9660.h"
   8 #include "charset.h"
   9 #include "joliet.h"
  10 #include "globals.h"
  11 #include "aros_stuff.h"
  12 #include "clib_stuff.h"
  13
  14 /*
  15  * History:
  16  *
  17  * 06-Mar-09 error   - Removed madness, fixed insanity. Cleanup started
  18  */
  19
  20 extern struct Globals *global;
  21
  22 #define SysBase global->SysBase
  23
  24 t_bool Uses_Joliet_Protocol(CDROM *p_cdrom, t_ulong offset, t_ulong *p_svdoffset)
  25 {
  26     t_ulong svd_offset;
  27     sup_vol_desc *svd;
  28
  29     for (svd_offset = 17;;svd_offset++)
  30     {
  31         if (!Read_Chunk(p_cdrom, svd_offset + offset))
  32             return FALSE;
  33         svd = (sup_vol_desc *)p_cdrom->buffer;
  34         if (StrNCmp(svd->id, "CD001", 5) != 0)
  35             return FALSE;
  36         if (svd->type == 255)
  37             return FALSE;
  38         if ((svd->type == 2) && (svd->escape[0] == 0x25) && (svd->escape[1] == 0x2F) &&
  39             ((svd->escape[2] == 0x40) || (svd->escape[2] == 0x43) || (svd->escape[2] == 0x45))) {
  40             *p_svdoffset = svd_offset;
  41             return TRUE;
  42         }
  43     }
  44 }
  45
  46 int Get_Joliet_Name(struct CDVDBase *global, char *from, char *to, unsigned char len)
  47 {
  48     int l;
  49
  50     l = UTF16ToSystem(global, from, to, len);
  51
  52     if (l == -1)
  53     {
  54         int i;
  55
  56         l = 0;
  57         for (i = 0; i < len; i+=2)
  58             to[l++] = from[i] ? '_' : from[i+1];
  59     }
  60
  61     return l;
  62 }
  63