BLGetVolumeFinderInfo.c   [plain text]

/*
 * Copyright (c) 2001-2007 Apple Inc. All Rights Reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this
 * file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/*
 *  BLGetVolumeFinderInfo.c
 *  bless
 *
 *  Created by Shantonu Sen <ssen@apple.com> on Thu Apr 19 2001.
 *  Copyright (c) 2001-2007 Apple Inc. All Rights Reserved.
 *
 *  $Id: BLGetVolumeFinderInfo.c,v 1.16 2006/02/20 22:49:54 ssen Exp $
 *
 */

#include <CoreFoundation/CoreFoundation.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/attr.h>

#include "bless.h"
#include "bless_private.h"

struct volinfobuf {
  uint32_t info_length;
  uint32_t finderinfo[8];
}; 


int BLGetVolumeFinderInfo(BLContextPtr context, const char * mountpoint, uint32_t * words) {
    int err, i;
    struct volinfobuf vinfo;
    struct attrlist alist;


    alist.bitmapcount = 5;
    alist.reserved = 0;
    alist.commonattr = ATTR_CMN_FNDRINFO;
    alist.volattr = ATTR_VOL_INFO;
    alist.dirattr = 0;
    alist.fileattr = 0;
    alist.forkattr = 0;
    
    err = getattrlist(mountpoint, &alist, &vinfo, sizeof(vinfo), 0);
    if(err) {
      contextprintf(context, kBLLogLevelError,  "Can't get volume information for %s\n", mountpoint );
      return 1;
    }

    /* Finder info words are just opaque and in big-endian format on disk
	for HFS+ */
    
    for(i=0; i<6; i++) {
        words[i] = CFSwapInt32BigToHost(vinfo.finderinfo[i]);
    }

    *(uint64_t *)&words[6] = CFSwapInt64BigToHost(
					(*(uint64_t *)&vinfo.finderinfo[6]));
    
    return 0;
}