[Patch] Configure broken for Solaris 2.6 (PR#12014)
David Collier-Brown
davecb at Canada.Sun.COM
Thu Dec 17 13:00:42 GMT 1998
Jeremy Allison wrote:
> Well the autoconf tests look for *any* way of getting disk free
> space.
> These are :
> statvfs64 - 64 bit statvfs
> statvfs - SVR4 statvfs
those we have: 2.5.1 has statvfs
2.6 has statvfs and statvfs64
7 and later have both
Existing Interface 64-bit Definition Header
------------------ ----------------- ------
int statvfs(..., int statvfs64(..., <sys/statvfs.h>
struct statvfs *); struct statvfs64 *);
statfs should, in my opinion, have been a
standardized function, returning the same
structure on all variant of Unix. Alas,
it had already mutated, so we get a standard
statvfs/fstatvfs, but almost no-one follows the
standard (:-()
--dave
--
David Collier-Brown, | Always do right. This will gratify some people
185 Ellerslie Ave., | and astonish the rest. -- Mark Twain
Willowdale, Ontario | http://java.science.yorku.ca/~davecb
Work: (905) 477-0437, Home: (416) 223-8968, Email: davecb at canada.sun.com
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System Calls statvfs(2)
NAME
statvfs, fstatvfs - get file system information
SYNOPSIS
#include <sys/types.h>
#include <sys/statvfs.h>
int statvfs(const char *path, struct statvfs *buf);
int fstatvfs(int fildes, struct statvfs *buf);
DESCRIPTION
The statvfs function returns a "generic superblock" describ-
ing a file system; it can be used to acquire information
about mounted file systems. The buf argument is a pointer
to a structure (described below) that is filled by the func-
tion.
The path argument should name a file that resides on that
file system. The file system type is known to the operating
system. Read, write, or execute permission for the named
file is not required, but all directories listed in the path
name leading to the file must be searchable.
The statvfs structure pointed to by buf includes the follow-
ing members:
u_long f_bsize; /* preferred file system block size
*/
u_long f_frsize; /* fundamental filesystem block
(size if supported) */
fsblkcnt_t f_blocks; /* total # of blocks on file system
in units
of f_frsize */
fsblkcnt_t f_bfree; /* total # of free blocks */
fsblkcnt_t f_bavail; /* # of free blocks avail to non-
super-user */
fsfilcnt_t f_files; /* total # of file nodes (inodes)
*/
fsfilcnt_t f_ffree; /* total # of free file nodes */
fsfilcnt_t f_favail; /* # of inodes avail to non-super-
user*/
u_long f_fsid; /* file system id (dev for now) */
char f_basetype[FSTYPSZ]; /* target fs type name, null-ter-
minated */
u_long f_flag; /* bit mask of flags */
u_long f_namemax; /* maximum file name length */
char f_fstr[32]; /* file system specific string */
u_long f_filler[16]; /* reserved for future expansion */
The f_basetype member contains a null-terminated FSType name
of the mounted target.
SunOS 5.7 Last change: 28 Jan 1998 1
System Calls statvfs(2)
The following values can be returned in the f_flag field:
ST_RDONLY 0x01 /* read-only file system */
ST_NOSUID 0x02 /* does not support setuid/set-
gid semantics */
ST_NOTRUNC 0x04 /* does not truncate file names
longer than {NAME_MAX}*/
The fstatvfs function is similar to statvfs, except that the
file named by path in statvfs is instead identified by an
open file descriptor fildes obtained from a successful
open(2), creat(2), dup(2), fcntl(2), or pipe(2) function
call.
RETURN VALUES
Upon successful completion, 0 is returned. Otherwise, -1 is
returned and errno is set to indicate the error.
ERRORS
The statvfs and fstatvfs functions will fail if:
EOVERFLOW One of the values to be returned cannot be repre-
sented correctly in the structure pointed to by
buf.
The statvfs function will fail if:
EACCES Search permission is denied on a component of the
path prefix.
EFAULT The path or buf argument points to an illegal
address.
EINTR A signal was caught during the execution of the
statvfs function.
EIO An I/O error occurred while reading the file sys-
tem.
ELOOP Too many symbolic links were encountered in trans-
lating path.
EMULTIHOP Components of path require hopping to multiple
remote machines and file system type does not
allow it.
ENAMETOOLONG
The length of a path component exceeds {NAME_MAX}
characters, or the length of path The exceeds
{PATH_MAX} characters.
ENOENT Either a component of the path prefix or the file
referred to by path does not exist.
SunOS 5.7 Last change: 28 Jan 1998 2
System Calls statvfs(2)
ENOLINK The path argument points to a remote machine and
the link to that machine is no longer active.
ENOTDIR A component of the path prefix of path is not a
directory.
The fstatvfs function will fail if:
EBADF The fildes argument is not an open file descrip-
tor.
EFAULT The buf argument points to an illegal address.
EINTR A signal was caught during the execution of the
fstatvfs function.
EIO An I/O error occurred while reading the file sys-
tem.
USAGE
The statvfs and fstatvfs functions have transitional inter-
faces for 64-bit file offsets. See lf64(5).
SEE ALSO
chmod(2), chown(2), creat(2), dup(2), fcntl(2), link(2),
mknod(2), open(2), pipe(2), read(2), time(2), unlink(2),
utime(2), write(2), lf64(5)
BUGS
The values returned for f_files, f_ffree, and f_favail may
not be valid for NFS mounted file systems.
SunOS 5.7 Last change: 28 Jan 1998 3
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