diff options
Diffstat (limited to 'libmpio')
| -rw-r--r-- | libmpio/src/directory.c | 79 |
1 files changed, 36 insertions, 43 deletions
diff --git a/libmpio/src/directory.c b/libmpio/src/directory.c index 3fc7496..200d1e9 100644 --- a/libmpio/src/directory.c +++ b/libmpio/src/directory.c @@ -1,5 +1,5 @@ /* - * $Id: directory.c,v 1.4 2003/06/12 08:32:32 germeier Exp $ + * $Id: directory.c,v 1.5 2003/06/16 10:25:03 germeier Exp $ * * libmpio - a library for accessing Digit@lways MPIO players * Copyright (C) 2002, 2003 Markus Germeier @@ -439,6 +439,7 @@ mpio_dentry_filename_write(mpio_t *m, mpio_mem_t mem, BYTE *p, int count = 0; BYTE index; BYTE f_8_3[13]; + BYTE alias_check; mpio_dir_slot_t *slot; mpio_dir_entry_t *dentry; DWORD i, j; @@ -467,32 +468,6 @@ mpio_dentry_filename_write(mpio_t *m, mpio_mem_t mem, BYTE *p, if (filename_size % 13) count++; - slot = (mpio_dir_slot_t *)p; - - index = 0x40 + count; - while (count > 0) { - mpio_dentry_copy_to_slot(back + ((count - 1) * 26), slot); - hexdump((char *)back + ((count - 1) * 26), 0x20); - slot->id = index; - slot->attr = 0x0f; - slot->reserved = 0x00; - slot->start[0] = 0x00; - slot->start[1] = 0x00; - /* FIXME: */ - slot->alias_checksum = 0x00; // checksum for 8.3 alias - - hexdump((char *)slot, 0x20); - - slot++; - count--; - index = count; - } - -/* memcpy(p, m->internal.dir+0x220, 0x20); */ - -/* p+=0x20; */ - dentry = (mpio_dir_entry_t *)slot; - /* find uniq 8.3 filename */ memset(f_8_3, 0x20, 12); f_8_3[8]='.'; @@ -544,31 +519,49 @@ mpio_dentry_filename_write(mpio_t *m, mpio_mem_t mem, BYTE *p, j++; } - /* This seems like a special case to me! */ - if (strcmp(MPIO_MPIO_RECORD, filename)==0) - { - f_8_3[6]='~'; - f_8_3[7]='0'; - } - - if (mpio_dentry_find_name_8_3(m, mem, f_8_3)) - { - f_8_3[6]='~'; - f_8_3[7]='1'; - } + f_8_3[6]='~'; + f_8_3[7]='0'; while(mpio_dentry_find_name_8_3(m, mem, f_8_3)) f_8_3[7]++; - -/* memcpy(dentry->name,"AAAAAAAA",8); */ -/* memcpy(dentry->ext,"MP3",3); */ + hexdumpn(5, f_8_3, 13); + + /* calculate checksum for 8.3 alias */ + alias_check = 0; + for (i = 0; i < 12; i++) { + if (i!=8) /* yuck */ + alias_check = (((alias_check & 0x01)<<7)| + ((alias_check & 0xfe)>>1)) + f_8_3[i]; + } + + slot = (mpio_dir_slot_t *)p; + + index = 0x40 + count; + while (count > 0) { + mpio_dentry_copy_to_slot(back + ((count - 1) * 26), slot); + hexdump((char *)back + ((count - 1) * 26), 0x20); + slot->id = index; + slot->attr = 0x0f; + slot->reserved = 0x00; + slot->start[0] = 0x00; + slot->start[1] = 0x00; + slot->alias_checksum = alias_check; // checksum for 8.3 alias + + hexdumpn(5, (char *)slot, 0x20); + + slot++; + count--; + index = count; + } -/* hexdumpn(0, f_8_3, 13); */ + dentry = (mpio_dir_entry_t *)slot; memcpy(dentry->name, f_8_3, 8); memcpy(dentry->ext, f_8_3+9, 3); + hexdumpn(5, (char *)dentry, 0x20); + free(unicode); free(fname); |