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ntfs-3g
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Load the attribute definition table at mount time and free it at umount time. 

(Logical change 1.72)
edge.strict_endians
cantab.net!aia21 2002-12-29 12:17:35 +00:00
parent a86ad90a97
commit f75d0c5be5
1 changed files with 46 additions and 1 deletions
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47
libntfs/volume.c
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@ -79,6 +79,8 @@ static void __ntfs_volume_release(ntfs_volume *v)
free(v->vol_name);
if (v->upcase)
free(v->upcase);
if (v->attrdef)
free(v->attrdef);
free(v);
}
@ -836,7 +838,50 @@ ntfs_volume *ntfs_mount(const char *name, unsigned long rwflag)
if (ntfs_inode_close(ni))
Dperror("Failed to close inode, leaking memory");
/* FIXME: Need to deal with FILE_AttrDef. (AIA) */
/* Now load the attribute definitions from $AttrDef. */
Dprintf("Loading $AttrDef... ");
ni = ntfs_inode_open(vol, FILE_AttrDef);
if (!ni) {
Dputs(FAILED);
Dperror("Failed to open inode");
goto error_exit;
}
/* Get an ntfs attribute for $AttrDef/$DATA. */
na = ntfs_attr_open(ni, AT_DATA, AT_UNNAMED, 0);
if (!na) {
Dputs(FAILED);
Dperror("Failed to open ntfs attribute");
goto error_exit;
}
/* Check we don't overflow 32-bits. */
if (na->data_size > 0xffffffffLL) {
Dputs(FAILED);
Dputs("Error: Attribute definition table is too big "
"(max 32-bit allowed).");
errno = EINVAL;
goto error_exit;
}
vol->attrdef_len = na->data_size;
vol->attrdef = (ATTR_DEF*)malloc(na->data_size);
if (!vol->attrdef) {
Dputs(FAILED);
Dputs("Not enough memory to load $AttrDef.");
goto error_exit;
}
/* Read in the $DATA attribute value into the buffer. */
l = ntfs_attr_pread(na, 0, na->data_size, vol->attrdef);
if (l != na->data_size) {
Dputs(FAILED);
Dputs("Amount of data read does not correspond to expected "
"length!");
errno = EIO;
goto error_exit;
}
/* Done with the $AttrDef mft record. */
Dputs(OK);
ntfs_attr_close(na);
if (ntfs_inode_close(ni))
Dperror("Failed to close inode, leaking memory");
return vol;
io_error_exit: