diff options
Diffstat (limited to 'lib/libc/gen/statvfs.c')
| -rw-r--r-- | lib/libc/gen/statvfs.c | 160 |
1 files changed, 0 insertions, 160 deletions
diff --git a/lib/libc/gen/statvfs.c b/lib/libc/gen/statvfs.c deleted file mode 100644 index fe9462b..0000000 --- a/lib/libc/gen/statvfs.c +++ /dev/null @@ -1,160 +0,0 @@ -/* - * Copyright 2002 Massachusetts Institute of Technology - * - * Permission to use, copy, modify, and distribute this software and - * its documentation for any purpose and without fee is hereby - * granted, provided that both the above copyright notice and this - * permission notice appear in all copies, that both the above - * copyright notice and this permission notice appear in all - * supporting documentation, and that the name of M.I.T. not be used - * in advertising or publicity pertaining to distribution of the - * software without specific, written prior permission. M.I.T. makes - * no representations about the suitability of this software for any - * purpose. It is provided "as is" without express or implied - * warranty. - * - * THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''. M.I.T. DISCLAIMS - * ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE, - * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT - * SHALL M.I.T. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include "namespace.h" -#include <sys/param.h> -#include <sys/mount.h> -#include <sys/statvfs.h> - -#include <errno.h> -#include <limits.h> -#include <unistd.h> -#include "un-namespace.h" - -static int sfs2svfs(const struct statfs *from, struct statvfs *to); - -int -fstatvfs(int fd, struct statvfs *result) -{ - struct statfs sfs; - int rv; - long pcval; - - rv = _fstatfs(fd, &sfs); - if (rv != 0) - return (rv); - - rv = sfs2svfs(&sfs, result); - if (rv != 0) - return (rv); - - /* - * Whether pathconf's -1 return means error or unlimited does not - * make any difference in this best-effort implementation. - */ - pcval = _fpathconf(fd, _PC_NAME_MAX); - if (pcval == -1) - result->f_namemax = ~0UL; - else - result->f_namemax = (unsigned long)pcval; - return (0); -} - -int -statvfs(const char * __restrict path, struct statvfs * __restrict result) -{ - struct statfs sfs; - int rv; - long pcval; - - rv = statfs(path, &sfs); - if (rv != 0) - return (rv); - - sfs2svfs(&sfs, result); - - /* - * Whether pathconf's -1 return means error or unlimited does not - * make any difference in this best-effort implementation. - */ - pcval = pathconf(path, _PC_NAME_MAX); - if (pcval == -1) - result->f_namemax = ~0UL; - else - result->f_namemax = (unsigned long)pcval; - return (0); -} - -static int -sfs2svfs(const struct statfs *from, struct statvfs *to) -{ - static const struct statvfs zvfs; - - *to = zvfs; - - if (from->f_flags & MNT_RDONLY) - to->f_flag |= ST_RDONLY; - if (from->f_flags & MNT_NOSUID) - to->f_flag |= ST_NOSUID; - - /* XXX should we clamp negative values? */ -#define COPY(field) \ - do { \ - to->field = from->field; \ - if (from->field != to->field) { \ - errno = EOVERFLOW; \ - return (-1); \ - } \ - } while(0) - - COPY(f_bavail); - COPY(f_bfree); - COPY(f_blocks); - COPY(f_ffree); - COPY(f_files); - to->f_bsize = from->f_iosize; - to->f_frsize = from->f_bsize; - to->f_favail = to->f_ffree; - return (0); -} - -#ifdef MAIN -#include <err.h> -#include <stdint.h> -#include <stdio.h> - -int -main(int argc, char **argv) -{ - struct statvfs buf; - - if (statvfs(argv[1], &buf) < 0) - err(1, "statvfs"); - -#define SHOW(field) \ - printf(#field ": %ju\n", (uintmax_t)buf.field) - - SHOW(f_bavail); - SHOW(f_bfree); - SHOW(f_blocks); - SHOW(f_favail); - SHOW(f_ffree); - SHOW(f_files); - SHOW(f_bsize); - SHOW(f_frsize); - SHOW(f_namemax); - printf("f_flag: %lx\n", (unsigned long)buf.f_flag); - - return 0; -} - -#endif /* MAIN */ |
