From 28f540f45bbacd939bfd07f213bcad2bf730b1bf Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Sat, 18 Feb 1995 01:27:10 +0000 Subject: initial import --- sysdeps/mach/hurd/link.c | 60 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 60 insertions(+) create mode 100644 sysdeps/mach/hurd/link.c (limited to 'sysdeps/mach/hurd/link.c') diff --git a/sysdeps/mach/hurd/link.c b/sysdeps/mach/hurd/link.c new file mode 100644 index 0000000000..11262f5a0f --- /dev/null +++ b/sysdeps/mach/hurd/link.c @@ -0,0 +1,60 @@ +/* Copyright (C) 1991, 1992, 1993, 1994, 1995 Free Software Foundation, Inc. +This file is part of the GNU C Library. + +The GNU C Library is free software; you can redistribute it and/or +modify it under the terms of the GNU Library General Public License as +published by the Free Software Foundation; either version 2 of the +License, or (at your option) any later version. + +The GNU C Library is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +#include +#include +#include +#include +#include + +/* Make a link to FROM called TO. */ +int +DEFUN(__link, (from, to), CONST char *from AND CONST char *to) +{ + error_t err; + file_t oldfile, linknode, todir; + char *toname; + + oldfile = __file_name_lookup (from, 0, 0); + if (oldfile == MACH_PORT_NULL) + return -1; + + /* The file_getlinknode RPC returns the port that should be passed to + the receiving filesystem (the one containing TODIR) in dir_link. */ + + err = __file_getlinknode (oldfile, &linknode); + __mach_port_deallocate (__mach_task_self (), oldfile); + if (err) + return __hurd_fail (err); + + todir = __file_name_split (to, &toname); + if (todir != MACH_PORT_NULL) + { + err = __dir_link (linknode, todir, toname); + __mach_port_deallocate (__mach_task_self (), todir); + } + __mach_port_deallocate (__mach_task_self (), linknode); + if (todir == MACH_PORT_NULL) + return -1; + + if (err) + return __hurd_fail (err); + return 0; +} + +weak_alias (__link, link) -- cgit 1.4.1