[lkml]   [2008]   [Jul]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: [PATCH 2/7] fat: Fix VFAT_IOCTL_READDIR_xxx and cleanup for userland
    On Tue, Jul 01, 2008 at 03:40:33AM -0400, Christoph Hellwig wrote:
    > On Tue, Jul 01, 2008 at 11:57:03AM +0900, OGAWA Hirofumi wrote:
    > >
    > > "struct dirent" is a kernel type here, but is a **different type** in
    > > userspace! This means both the structure and the IOCTL number is wrong!
    > >
    > > So, this adds new "struct __fat_dirent" to generate correct IOCTL
    > > number. And kernel stuff moves to under __KERNEL__.
    > Given that the current version can't actually work without defininig
    > it's own dirent and thus ioctl number symbolic name I wonder if these
    > ioctls are used at all? They must have been completely untested for
    > a while, and I suspect we'd be better off just removing them.

    I had the same thought, but when checking this I noticed that at least
    wine works around this problem:

    <-- snip -->

    /* just in case... */
    #undef USE_GETDENTS

    #ifdef linux

    /* We want the real kernel dirent structure, not the libc one */
    typedef struct
    long d_ino;
    long d_off;
    unsigned short d_reclen;
    char d_name[256];

    /* Define the VFAT ioctl to get both short and long file names */

    <-- snip -->



    "Is there not promise of rain?" Ling Tan asked suddenly out
    of the darkness. There had been need of rain for many days.
    "Only a promise," Lao Er said.
    Pearl S. Buck - Dragon Seed

     \ /
      Last update: 2008-07-01 13:25    [W:3.074 / U:1.108 seconds]
    ©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site