zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/build/uClibc/libc/misc/statfs/internal_statvfs.c b/ap/build/uClibc/libc/misc/statfs/internal_statvfs.c
new file mode 100644
index 0000000..6075e9c
--- /dev/null
+++ b/ap/build/uClibc/libc/misc/statfs/internal_statvfs.c
@@ -0,0 +1,111 @@
+/* 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 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;
+#ifdef __USE_GNU
+ 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;
+#endif
+
+ /* We can stop looking for more entries. */
+ break;
+ }
+ }
+
+ /* Close the file. */
+ endmntent (mtab);
+ }
+
+ __set_errno (save_errno);
+ }