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, long *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 pathname.

_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.