DragonFly On-Line Manual Pages

VOP_READLINK(9)       DragonFly Kernel Developer's Manual      VOP_READLINK(9)

NAME
     VOP_READLINK -- read the target of a symbolic link

SYNOPSIS
     #include <sys/param.h>
     #include <sys/vnode.h>
     #include <sys/uio.h>

     int
     VOP_READLINK(struct vnode *vp, struct uio *uio, struct ucred *cred);

DESCRIPTION
     This reads the target pathname of a symbolic link

     vp   the vnode of the symlink

     uio  the location of the data to be read or written

     cred
          the credentials of the caller

LOCKS
     The vnode should be locked on entry and will still be locked on exit.

RETURN VALUES
     Zero is returned on success, otherwise an error code is returned.

PSEUDOCODE
     int
     vop_readlink(struct vnode *vp, struct uio *uio, struct ucred *cred)
     {
         int error = 0;

         /*
          * Read the target of the symlink.
          */
         ...;

         return error;
     }

ERRORS
     [EIO]              a read error occurred while reading the contents of
                        the symlink

SEE ALSO
     uiomove(9), vnode(9)

AUTHORS
     This man page was written by Doug Rabson.

DragonFly 3.5                    July 24, 1996                   DragonFly 3.5