vop_pathconf(9)

NAME

VOP_PATHCONF - return POSIX pathconf information

SYNOPSIS

#include <sys/param.h>
#include <sys/vnode.h>
#include <sys/unistd.h>
int
VOP_PATHCONF(struct vnode *vp, int name, int *retval);

DESCRIPTION

The arguments are:

vp The vnode to get information about.

name The type of information to return.

retval The place to return the information.

The value of name specifies what should be returned:

_PC_LINK_MAX The maximum number of links to a file.

_PC_NAME_MAX The maximum number of bytes in a file

name.

_PC_PATH_MAX The maximum number of bytes in a path

name.

_PC_PIPE_BUF The maximum number of bytes which will

be written

atomically to a pipe.

_PC_CHOWN_RESTRICTED Return 1 if appropriate privileges are

required for

the chown(2) system call, otherwise 0.

_PC_NO_TRUNC Return 1 if file names longer than

KERN_NAME_MAX

are truncated.

RETURN VALUES

If name is recognized, *retval is set to the specified value

and zero is
returned, otherwise EINVAL is returned.

SEE ALSO

pathconf(2), vnode(9)

AUTHORS

This manual page was written by Doug Rabson.

BSD July 24, 1996

BSD