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Manual Pages  — VOP_PATHCONF

NAME

VOP_PATHCONF – return POSIX pathconf information

CONTENTS

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.

VOP_PATHCONF (9) July 21, 2019

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