hfs-user October 2002

hfs-user@lists.mars.org

3 participants
2 discussions

Fwd: FinderInfo
by nand＠gmx.de 25 Oct '02

25 Oct '02

--- Weitergeleitete Nachricht / Forwarded Message --- Date: Fri, 25 Oct 2002 16:47:39 +0200 (MEST) From: nand(a)gmx.de To: hfs-user(a)lists.apple.com Subject: FinderInfo > Hello Listers, > Does anyone know what the 32 bytes of FinderInfo in the > MDB/VolmeHeader of an HFS/HFS+ volume are actually supposed to contain ? > > Neither Universal Interfaces or TN 1150 seem to mention the exact format > of > the data stored in here. Some sample driver code from Apple led me to > believe > that these 32 bytes are organized as eight 4 byte units of which the fifth > long integer holds the CNID of the System Folder of the Volume (if > present). > What do the other fields stand for... could someone direct me links > describing > these if any? > The weblinks point to Inside Macintosh: Finder but only the finder fields > relevant to the catalog files and folders seem to be described here. > > Any help is greatly appreciated! > > Regards, > Nandini Hengen > > -- > +++ GMX - Mail, Messaging & more http://www.gmx.net +++ > NEU: Mit GMX ins Internet. Rund um die Uhr für 1 ct/ Min. surfen! > > -- +++ GMX - Mail, Messaging & more http://www.gmx.net +++ NEU: Mit GMX ins Internet. Rund um die Uhr für 1 ct/ Min. surfen!

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HFS utils and large volumes
by James Pearson 03 Oct '02

03 Oct '02

In case anyone is interested, here is a small patch to make hfsutils work with large volumes (over 4Gb). Under Linux, I also has to compile the code with "-D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE" (There is probably a way to do this via 'configure', but I haven't a clue how to do that ...) The only strange bit about the the patch is that I had to split the "return" line into two lines - which is the only way it would gives the correct result using gcc v2.96-98 on Linux for large numbers ... James Pearson *** hfsutils-3.2.6/libhfs/os/unix.c.dist Mon Nov 2 22:09:13 1998 --- hfsutils-3.2.6/libhfs/os/unix.c Wed Oct 2 13:46:29 2002 *************** *** 147,158 **** if (offset == (unsigned long) -1) result = lseek(fd, 0, SEEK_END); else ! result = lseek(fd, offset << HFS_BLOCKSZ_BITS, SEEK_SET); if (result == -1) ERROR(errno, "error seeking medium"); ! return (unsigned long) result >> HFS_BLOCKSZ_BITS; fail: return -1; --- 147,160 ---- if (offset == (unsigned long) -1) result = lseek(fd, 0, SEEK_END); else ! result = lseek(fd, (off_t)offset << HFS_BLOCKSZ_BITS, SEEK_SET); if (result == -1) ERROR(errno, "error seeking medium"); ! result >>= HFS_BLOCKSZ_BITS; ! ! return (unsigned long) result; fail: return -1;

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hfs-user October 2002