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Code to do lchown(2), copied from chown(2) except it's NOFOLLOW in ND_INIT

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instead of FOLLOW.
This commit is contained in:
Peter Wemm 1997-03-31 12:21:37 +00:00
parent f77da2867a
commit 57862eed22
2 changed files with 82 additions and 2 deletions
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42
sys/kern/vfs_extattr.c
View File

@ -36,7 +36,7 @@
* SUCH DAMAGE.
*
* @(#)vfs_syscalls.c 8.13 (Berkeley) 4/15/94
* $Id: vfs_syscalls.c,v 1.61 1997/03/23 20:08:11 guido Exp $
* $Id: vfs_syscalls.c,v 1.62 1997/03/31 12:02:42 peter Exp $
*/
/*
@ -1867,6 +1867,46 @@ chown(p, uap, retval)
return (error);
}
/*
* Set ownership given a path name, do not cross symlinks.
*/
#ifndef _SYS_SYSPROTO_H_
struct lchown_args {
char *path;
int uid;
int gid;
};
#endif
/* ARGSUSED */
int
lchown(p, uap, retval)
struct proc *p;
register struct lchown_args /* {
syscallarg(char *) path;
syscallarg(int) uid;
syscallarg(int) gid;
} */ *uap;
register_t *retval;
{
register struct vnode *vp;
struct vattr vattr;
int error;
struct nameidata nd;
NDINIT(&nd, LOOKUP, NOFOLLOW, UIO_USERSPACE, SCARG(uap, path), p);
if (error = namei(&nd))
return (error);
vp = nd.ni_vp;
VOP_LEASE(vp, p, p->p_ucred, LEASE_WRITE);
vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, p);
VATTR_NULL(&vattr);
vattr.va_uid = SCARG(uap, uid);
vattr.va_gid = SCARG(uap, gid);
error = VOP_SETATTR(vp, &vattr, p->p_ucred, p);
vput(vp);
return (error);
}
/*
* Set ownership given a file descriptor.
*/

42
sys/kern/vfs_syscalls.c
View File

@ -36,7 +36,7 @@
* SUCH DAMAGE.
*
* @(#)vfs_syscalls.c 8.13 (Berkeley) 4/15/94
* $Id: vfs_syscalls.c,v 1.61 1997/03/23 20:08:11 guido Exp $
* $Id: vfs_syscalls.c,v 1.62 1997/03/31 12:02:42 peter Exp $
*/
/*
@ -1867,6 +1867,46 @@ chown(p, uap, retval)
return (error);
}
/*
* Set ownership given a path name, do not cross symlinks.
*/
#ifndef _SYS_SYSPROTO_H_
struct lchown_args {
char *path;
int uid;
int gid;
};
#endif
/* ARGSUSED */
int
lchown(p, uap, retval)
struct proc *p;
register struct lchown_args /* {
syscallarg(char *) path;
syscallarg(int) uid;
syscallarg(int) gid;
} */ *uap;
register_t *retval;
{
register struct vnode *vp;
struct vattr vattr;
int error;
struct nameidata nd;
NDINIT(&nd, LOOKUP, NOFOLLOW, UIO_USERSPACE, SCARG(uap, path), p);
if (error = namei(&nd))
return (error);
vp = nd.ni_vp;
VOP_LEASE(vp, p, p->p_ucred, LEASE_WRITE);
vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, p);
VATTR_NULL(&vattr);
vattr.va_uid = SCARG(uap, uid);
vattr.va_gid = SCARG(uap, gid);
error = VOP_SETATTR(vp, &vattr, p->p_ucred, p);
vput(vp);
return (error);
}
/*
* Set ownership given a file descriptor.
*/