From 6e9b72d3abab3236a2e079587ad5c5653d96e7bd Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Tue, 18 Jan 2000 10:17:32 +0000 Subject: Update. * sysdeps/unix/sysv/linux/fstatvfs.c: Move actual code in... * sysdeps/unix/sysv/linux/internal_statvfs.c: ...here. New file. * sysdeps/unix/sysv/linux/statvfs.c: Don't use fstatvfs since the open call would require read permission. Patch by James Antill . * sysdeps/unix/sysv/linux/Dist: Add internal_fnmatch.c. * inet/getnameinfo.c: Terminate host name for NI_NOFQDN. PR1515. Patches by Hideaki YOSHIFUJI . --- sysdeps/unix/sysv/linux/internal_statvfs.c | 98 ++++++++++++++++++++++++++++++ 1 file changed, 98 insertions(+) create mode 100644 sysdeps/unix/sysv/linux/internal_statvfs.c (limited to 'sysdeps/unix/sysv/linux/internal_statvfs.c') diff --git a/sysdeps/unix/sysv/linux/internal_statvfs.c b/sysdeps/unix/sysv/linux/internal_statvfs.c new file mode 100644 index 0000000000..24765dcf5e --- /dev/null +++ b/sysdeps/unix/sysv/linux/internal_statvfs.c @@ -0,0 +1,98 @@ +/* Copyright (C) 1998, 1999, 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper , 1998. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. 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; + buf->f_fsid = fsbuf.f_fsid; + 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 (fstat (fd, &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 stat fsst; + + /* Find out about the device the current entry is for. */ + if (stat (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); + } + + __set_errno (save_errno); + } -- cgit 1.4.1