VOP_PATHCONF(9)        FreeBSD Kernel Developer's Manual       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, 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.

LOCKS
     The vnode will be locked on entry and should remain locked on return.

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.

FreeBSD 13.1-RELEASE-p6        December 31, 2020       FreeBSD 13.1-RELEASE-p6