diff options
Diffstat (limited to 'libdiskfs/file-get-fs-opts.c')
-rw-r--r-- | libdiskfs/file-get-fs-opts.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/libdiskfs/file-get-fs-opts.c b/libdiskfs/file-get-fs-opts.c new file mode 100644 index 00000000..d7593118 --- /dev/null +++ b/libdiskfs/file-get-fs-opts.c @@ -0,0 +1,54 @@ +/* Get run-time file system options + + Copyright (C) 1995,96,98,2002 Free Software Foundation, Inc. + Written by Miles Bader <miles@gnu.org> + + This file is part of the GNU Hurd. + + The GNU Hurd is free software; you can redistribute it and/or + modify it under the terms of the GNU General Public License as + published by the Free Software Foundation; either version 2, or (at + your option) any later version. + + The GNU Hurd 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 + General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#include <errno.h> +#include <string.h> +#include <argz.h> +#include "priv.h" +#include "fs_S.h" + +error_t +diskfs_S_file_get_fs_options (struct protid *cred, + char **data, size_t *data_len) +{ + error_t err; + char *argz = 0; + size_t argz_len = 0; + + if (! cred) + return EOPNOTSUPP; + + err = argz_add (&argz, &argz_len, program_invocation_name); + if (err) + return err; + + pthread_rwlock_rdlock (&diskfs_fsys_lock); + err = diskfs_append_args (&argz, &argz_len); + pthread_rwlock_unlock (&diskfs_fsys_lock); + + if (! err) + /* Move ARGZ from a malloced buffer into a vm_alloced one. */ + err = iohelp_return_malloced_buffer (argz, argz_len, data, data_len); + else + free (argz); + + return err; +} |