From e8f51d56d4c4b5839fee6af97b068f9fa02efd09 Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Sat, 27 Feb 1999 20:06:34 +0000 Subject: 1999-02-27 Roland McGrath * sysdeps/mach/getsysstats.c (__get_nprocs_conf, __get_nprocs, __get_phys_pages): Cast &HBI to silence warning. * hurd/Makefile (routines): Add hurdchdir and hurdfchdir. * hurd/hurdchdir.c: New file. * hurd/hurdfchdir.c: New file. * sysdeps/mach/hurd/chroot.c: Call _hurd_change_directory_port_from_name to do the work. * sysdeps/mach/hurd/chdir.c: Likewise. * sysdeps/mach/hurd/fchdir.c: Call _hurd_change_directory_port_from_fd to do the work. * hurd/fchroot.c: Likewise. * hurd/hurd.h: Declare them. --- hurd/hurdchdir.c | 56 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 hurd/hurdchdir.c (limited to 'hurd/hurdchdir.c') diff --git a/hurd/hurdchdir.c b/hurd/hurdchdir.c new file mode 100644 index 0000000000..ce839a102f --- /dev/null +++ b/hurd/hurdchdir.c @@ -0,0 +1,56 @@ +/* Change a port cell to a directory by looking up a name. + Copyright (C) 1999 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., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include +#include +#include +#include +#include +#include + +int +_hurd_change_directory_port_from_name (struct hurd_port *portcell, + const char *name) +{ + size_t len; + const char *lookup; + file_t dir; + + /* Append trailing "/." to directory name to force ENOTDIR if it's not a + directory and EACCES if we don't have search permission. */ + len = strlen (name); + if (name[len - 2] == '/' && name[len - 1] == '.') + lookup = name; + else + { + char *n = alloca (len + 2); + memcpy (n, name, len); + n[len] = '/'; + n[len + 1] = '.'; + n[len + 2] = '\0'; + lookup = n; + } + + dir = __file_name_lookup (lookup, 0, 0); + if (dir == MACH_PORT_NULL) + return -1; + + _hurd_port_set (portcell, dir); + return 0; +} -- cgit v1.2.3