mirror of
https://github.com/autc04/Retro68.git
synced 2024-11-30 19:53:46 +00:00
110 lines
3.7 KiB
C
110 lines
3.7 KiB
C
/* Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
/* Now fill in the fields we have information for. */
|
|
buf->f_bsize = fsbuf.f_bsize;
|
|
/* Linux does not support f_frsize, so set it to the full block size. */
|
|
buf->f_frsize = fsbuf.f_bsize;
|
|
buf->f_blocks = fsbuf.f_blocks;
|
|
buf->f_bfree = fsbuf.f_bfree;
|
|
buf->f_bavail = fsbuf.f_bavail;
|
|
buf->f_files = fsbuf.f_files;
|
|
buf->f_ffree = fsbuf.f_ffree;
|
|
if (sizeof (buf->f_fsid) == sizeof (fsbuf.f_fsid))
|
|
buf->f_fsid = (fsbuf.f_fsid.__val[0]
|
|
| ((unsigned long int) fsbuf.f_fsid.__val[1]
|
|
<< (8 * (sizeof (buf->f_fsid)
|
|
- sizeof (fsbuf.f_fsid.__val[0])))));
|
|
else
|
|
/* We cannot help here. The statvfs element is not large enough to
|
|
contain both words of the statfs f_fsid field. */
|
|
buf->f_fsid = fsbuf.f_fsid.__val[0];
|
|
#ifdef _STATVFSBUF_F_UNUSED
|
|
buf->__f_unused = 0;
|
|
#endif
|
|
buf->f_namemax = fsbuf.f_namelen;
|
|
memset (buf->__f_spare, '\0', 6 * sizeof (int));
|
|
|
|
/* What remains to do is to fill the fields f_favail and f_flag. */
|
|
|
|
/* XXX I have no idea how to compute f_favail. Any idea??? */
|
|
buf->f_favail = buf->f_ffree;
|
|
|
|
/* Determining the flags is tricky. We have to read /proc/mounts or
|
|
the /etc/mtab file and search for the entry which matches the given
|
|
file. The way we can test for matching filesystem is using the
|
|
device number. */
|
|
buf->f_flag = 0;
|
|
if (STAT (&st) >= 0)
|
|
{
|
|
int save_errno = errno;
|
|
struct mntent mntbuf;
|
|
FILE *mtab;
|
|
|
|
mtab = __setmntent ("/proc/mounts", "r");
|
|
if (mtab == NULL)
|
|
mtab = __setmntent (_PATH_MOUNTED, "r");
|
|
|
|
if (mtab != NULL)
|
|
{
|
|
char tmpbuf[1024];
|
|
|
|
while (__getmntent_r (mtab, &mntbuf, tmpbuf, sizeof (tmpbuf)))
|
|
{
|
|
struct stat64 fsst;
|
|
|
|
/* Find out about the device the current entry is for. */
|
|
if (stat64 (mntbuf.mnt_dir, &fsst) >= 0
|
|
&& st.st_dev == fsst.st_dev)
|
|
{
|
|
/* Bingo, we found the entry for the device FD is on.
|
|
Now interpret the option string. */
|
|
char *cp = mntbuf.mnt_opts;
|
|
char *opt;
|
|
|
|
while ((opt = strsep (&cp, ",")) != NULL)
|
|
if (strcmp (opt, "ro") == 0)
|
|
buf->f_flag |= ST_RDONLY;
|
|
else if (strcmp (opt, "nosuid") == 0)
|
|
buf->f_flag |= ST_NOSUID;
|
|
else if (strcmp (opt, "noexec") == 0)
|
|
buf->f_flag |= ST_NOEXEC;
|
|
else if (strcmp (opt, "nodev") == 0)
|
|
buf->f_flag |= ST_NODEV;
|
|
else if (strcmp (opt, "sync") == 0)
|
|
buf->f_flag |= ST_SYNCHRONOUS;
|
|
else if (strcmp (opt, "mand") == 0)
|
|
buf->f_flag |= ST_MANDLOCK;
|
|
else if (strcmp (opt, "noatime") == 0)
|
|
buf->f_flag |= ST_NOATIME;
|
|
else if (strcmp (opt, "nodiratime") == 0)
|
|
buf->f_flag |= ST_NODIRATIME;
|
|
|
|
/* We can stop looking for more entries. */
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Close the file. */
|
|
__endmntent (mtab);
|
|
}
|
|
|
|
errno = (save_errno);
|
|
}
|