[src/trunk]: src/sys/ntfs add pathconf(2) support

[jdolecek <jdolecek%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/95f31e79df06
branches:  trunk
changeset: 476208:95f31e79df06
user:      jdolecek <jdolecek%NetBSD.org@localhost>
date:      Thu Sep 09 18:10:23 1999 +0000

description:
add pathconf(2) support

diffstat:

 sys/ntfs/TODO         |   3 ---
 sys/ntfs/ntfs_vnops.c |  50 +++++++++++++++++++++++++++++++++++++++++++++++---
 2 files changed, 47 insertions(+), 6 deletions(-)

diffs (112 lines):

diff -r 373909b6e8e1 -r 95f31e79df06 sys/ntfs/TODO
--- a/sys/ntfs/TODO     Thu Sep 09 18:09:10 1999 +0000
+++ b/sys/ntfs/TODO     Thu Sep 09 18:10:23 1999 +0000
@@ -28,9 +28,6 @@
 - working VOP_BALLOC()
        (from Chuq)
 
-- add pathconf(2) support
-       (from Klaus Klein)
-
 - make ntfs nfs exportable, for the completeness sake
 
 - mountroot support
diff -r 373909b6e8e1 -r 95f31e79df06 sys/ntfs/ntfs_vnops.c
--- a/sys/ntfs/ntfs_vnops.c     Thu Sep 09 18:09:10 1999 +0000
+++ b/sys/ntfs/ntfs_vnops.c     Thu Sep 09 18:10:23 1999 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: ntfs_vnops.c,v 1.14 1999/09/09 17:59:25 jdolecek Exp $ */
+/*     $NetBSD: ntfs_vnops.c,v 1.15 1999/09/09 18:10:23 jdolecek Exp $ */
 
 /*
  * Copyright (c) 1992, 1993
@@ -42,7 +42,6 @@
 #include <sys/param.h>
 #include <sys/systm.h>
 #include <sys/kernel.h>
-#include <sys/proc.h>
 #include <sys/time.h>
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -77,6 +76,8 @@
 #include <miscfs/genfs/genfs.h>
 #endif 
 
+#include <sys/unistd.h> /* for pathconf(2) constants */
+
 static int     ntfs_bypass __P((struct vop_generic_args *ap));
 static int     ntfs_read __P((struct vop_read_args *));
 static int     ntfs_write __P((struct vop_write_args *ap));
@@ -101,6 +102,7 @@
 static int     ntfs_putpages __P((struct vop_putpages_args *));
 static int     ntfs_fsync __P((struct vop_fsync_args *ap));
 #endif
+static int     ntfs_pathconf __P((void *));
 
 int    ntfs_prtactive = 1;     /* 1 => print out reclaim of active vnodes */
 
@@ -986,6 +988,47 @@
 #endif
 
 /*
+ * Return POSIX pathconf information applicable to NTFS filesystem
+ */
+int
+ntfs_pathconf(v)
+       void *v;
+{
+       struct vop_pathconf_args /* {
+               struct vnode *a_vp;
+               int a_name;
+               register_t *a_retval;
+       } */ *ap = v;
+
+       switch (ap->a_name) {
+       case _PC_LINK_MAX:
+               *ap->a_retval = 1;
+               return (0);
+       case _PC_NAME_MAX:
+               *ap->a_retval = NTFS_MAXFILENAME;
+               return (0);
+       case _PC_PATH_MAX:
+               *ap->a_retval = PATH_MAX;
+               return (0);
+       case _PC_CHOWN_RESTRICTED:
+               *ap->a_retval = 1;
+               return (0);
+       case _PC_NO_TRUNC:
+               *ap->a_retval = 0;
+               return (0);
+       case _PC_SYNC_IO:
+               *ap->a_retval = 1;
+               return (0);
+       case _PC_FILESIZEBITS:
+               *ap->a_retval = 64;
+               return (0);
+       default:
+               return (EINVAL);
+       }
+       /* NOTREACHED */
+}
+
+/*
  * Global vfs data structures
  */
 vop_t **ntfs_vnodeop_p;
@@ -998,6 +1041,7 @@
        { &vop_inactive_desc, (vop_t *)ntfs_inactive },
        { &vop_reclaim_desc, (vop_t *)ntfs_reclaim },
        { &vop_print_desc, (vop_t *)ntfs_print },
+       { &vop_pathconf_desc, ntfs_pathconf },
 
        { &vop_islocked_desc, (vop_t *)vop_stdislocked },
        { &vop_unlock_desc, (vop_t *)vop_stdunlock },
@@ -1075,7 +1119,7 @@
        { &vop_bmap_desc, (vop_t *) ntfs_bmap },        /* bmap */
        { &vop_strategy_desc, (vop_t *) ntfs_strategy },        /* strategy */
        { &vop_print_desc, (vop_t *) ntfs_print },      /* print */
-       { &vop_pathconf_desc, genfs_eopnotsupp },       /* pathconf */
+       { &vop_pathconf_desc, ntfs_pathconf },          /* pathconf */
        { &vop_advlock_desc, genfs_nullop },            /* advlock */
        { &vop_blkatoff_desc, genfs_eopnotsupp },       /* blkatoff */
        { &vop_valloc_desc, genfs_eopnotsupp },         /* valloc */