From e077f341ca5758360b4c050c493a1d81b06c72a0 Mon Sep 17 00:00:00 2001 From: Eric Andersen Date: Sun, 6 Jan 2002 08:51:00 +0000 Subject: Support statvfs and statfs. Added getmntent_r (and made it use strtok_r instead of strtok), taught getmntent to use getmntent_r. -Erik --- libc/misc/statfs/Makefile | 43 ++++++++++++++ libc/misc/statfs/fstatfs64.c | 57 +++++++++++++++++++ libc/misc/statfs/fstatvfs.c | 52 +++++++++++++++++ libc/misc/statfs/internal_statvfs.c | 109 ++++++++++++++++++++++++++++++++++++ libc/misc/statfs/statfs64.c | 54 ++++++++++++++++++ libc/misc/statfs/statvfs.c | 53 ++++++++++++++++++ 6 files changed, 368 insertions(+) create mode 100644 libc/misc/statfs/Makefile create mode 100644 libc/misc/statfs/fstatfs64.c create mode 100644 libc/misc/statfs/fstatvfs.c create mode 100644 libc/misc/statfs/internal_statvfs.c create mode 100644 libc/misc/statfs/statfs64.c create mode 100644 libc/misc/statfs/statvfs.c (limited to 'libc/misc/statfs') diff --git a/libc/misc/statfs/Makefile b/libc/misc/statfs/Makefile new file mode 100644 index 000000000..d8ebf28a9 --- /dev/null +++ b/libc/misc/statfs/Makefile @@ -0,0 +1,43 @@ +# Makefile for uClibc +# Copyright (C) 2001,2002 Erik Andersen +# +# This program 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. +# +# This program 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 this program; if not, write to the Free Software Foundation, Inc., +# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +# +# Derived in part from the Linux-8086 C library, the GNU C Library, and several +# other sundry sources. Files within this library are copyright by their +# respective copyright holders. + +TOPDIR=../../../ +include $(TOPDIR)Rules.mak + +CSRC = fstatfs64.c fstatvfs.c statfs64.c statvfs.c +COBJS=$(patsubst %.c,%.o, $(CSRC)) +OBJS=$(COBJS) + + +all: $(OBJS) $(LIBC) + +$(LIBC): ar-target + +ar-target: $(OBJS) + $(AR) $(ARFLAGS) $(LIBC) $(OBJS) + +$(COBJS): %.o : %.c + $(CC) $(CFLAGS) -c $< -o $@ + $(STRIPTOOL) -x -R .note -R .comment $*.o + +clean: + rm -f *.[oa] *~ core + diff --git a/libc/misc/statfs/fstatfs64.c b/libc/misc/statfs/fstatfs64.c new file mode 100644 index 000000000..9f45cf2db --- /dev/null +++ b/libc/misc/statfs/fstatfs64.c @@ -0,0 +1,57 @@ +/* Return information about the filesystem on which FD resides. + Copyright (C) 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + 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. */ + +#include + +#ifdef __UCLIBC_HAVE_LFS__ + +#define _FILE_OFFSET_BITS 64 +#define __USE_FILE_OFFSET64 +#define __USE_LARGEFILE64 + +#include +#include +#include +#include +#include + +/* Return information about the filesystem on which FD resides. */ +int fstatfs64 (int fd, struct statfs64 *buf) +{ + struct statfs buf32; + + if (fstatfs (fd, &buf32) < 0) + return -1; + + buf->f_type = buf32.f_type; + buf->f_bsize = buf32.f_bsize; + buf->f_blocks = buf32.f_blocks; + buf->f_bfree = buf32.f_bfree; + buf->f_bavail = buf32.f_bavail; + buf->f_files = buf32.f_files; + buf->f_ffree = buf32.f_ffree; + buf->f_fsid = buf32.f_fsid; + buf->f_namelen = buf32.f_namelen; + memcpy (buf->f_spare, buf32.f_spare, sizeof (buf32.f_spare)); + + return 0; +} + +#endif /* __UCLIBC_HAVE_LFS__ */ + diff --git a/libc/misc/statfs/fstatvfs.c b/libc/misc/statfs/fstatvfs.c new file mode 100644 index 000000000..9fb21aed6 --- /dev/null +++ b/libc/misc/statfs/fstatvfs.c @@ -0,0 +1,52 @@ +/* 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 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. */ + +#include + +#ifdef __UCLIBC_HAVE_LFS__ +# define _FILE_OFFSET_BITS 64 +# define __USE_FILE_OFFSET64 +# define __USE_LARGEFILE64 +#endif + +#define __USE_GNU +#include +#include +#include +#include +#include +#include +#include +#include + +int fstatvfs (int fd, struct statvfs *buf) +{ + struct statfs fsbuf; + struct stat st; + + /* Get as much information as possible from the system. */ + if (fstatfs (fd, &fsbuf) < 0) + return -1; + +#define STAT(st) fstat (fd, st) +#include "internal_statvfs.c" + + /* We signal success if the statfs call succeeded. */ + return 0; +} diff --git a/libc/misc/statfs/internal_statvfs.c b/libc/misc/statfs/internal_statvfs.c new file mode 100644 index 000000000..aa7af44f5 --- /dev/null +++ b/libc/misc/statfs/internal_statvfs.c @@ -0,0 +1,109 @@ +/* Copyright (C) 1998, 1999, 2000, 2001 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 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; + 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); + } diff --git a/libc/misc/statfs/statfs64.c b/libc/misc/statfs/statfs64.c new file mode 100644 index 000000000..7c8d0b3d5 --- /dev/null +++ b/libc/misc/statfs/statfs64.c @@ -0,0 +1,54 @@ +/* Return information about the filesystem on which FILE resides. + Copyright (C) 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + 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. */ + +#include + +#ifdef __UCLIBC_HAVE_LFS__ + +#define _FILE_OFFSET_BITS 64 +#define __USE_FILE_OFFSET64 +#define __USE_LARGEFILE64 + +#include +#include +#include +#include + +/* Return information about the filesystem on which FILE resides. */ +int statfs64 (const char *file, struct statfs64 *buf) +{ + struct statfs buf32; + + if (statfs (file, &buf32) < 0) + return -1; + + buf->f_type = buf32.f_type; + buf->f_bsize = buf32.f_bsize; + buf->f_blocks = buf32.f_blocks; + buf->f_bfree = buf32.f_bfree; + buf->f_bavail = buf32.f_bavail; + buf->f_files = buf32.f_files; + buf->f_ffree = buf32.f_ffree; + buf->f_fsid = buf32.f_fsid; + buf->f_namelen = buf32.f_namelen; + memcpy (buf->f_spare, buf32.f_spare, sizeof (buf32.f_spare)); + + return 0; +} +#endif diff --git a/libc/misc/statfs/statvfs.c b/libc/misc/statfs/statvfs.c new file mode 100644 index 000000000..7c002beb8 --- /dev/null +++ b/libc/misc/statfs/statvfs.c @@ -0,0 +1,53 @@ +/* Copyright (C) 1998, 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 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. */ + +#include + +#ifdef __UCLIBC_HAVE_LFS__ +# define _FILE_OFFSET_BITS 64 +# define __USE_FILE_OFFSET64 +# define __USE_LARGEFILE64 +#endif + +#define __USE_GNU +#include +#include +#include +#include +#include +#include +#include +#include + + +int statvfs (const char *file, struct statvfs *buf) +{ + struct statfs fsbuf; + struct stat st; + + /* Get as much information as possible from the system. */ + if (statfs (file, &fsbuf) < 0) + return -1; + +#define STAT(st) stat (file, st) +#include "internal_statvfs.c" + + /* We signal success if the statfs call succeeded. */ + return 0; +} -- cgit v1.2.3