1 /* 2 * Filesystem opening functions. 3 * 4 * Copyright (C) 2021 Paul Boddie <paul@boddie.org.uk> 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU General Public License as 8 * published by the Free Software Foundation; either version 2 of 9 * the License, or (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, 19 * Boston, MA 02110-1301, USA 20 */ 21 22 #include "fs.h" 23 24 25 26 /* Block server access configuration. */ 27 28 extern io_manager blockserver_io_manager; 29 extern const char *blockserver_default_cap; 30 31 32 33 /* Set the capability name used to access the underlying block server. */ 34 35 void e2access_init(const char *cap) 36 { 37 blockserver_default_cap = cap; 38 } 39 40 /* Open a filesystem provided by the indicated filename, using the given flags 41 and updating the filesystem reference. Any error is returned. */ 42 43 errcode_t e2access_open(const char *filename, int flags, ext2_filsys *fs) 44 { 45 errcode_t retval = ext2fs_open(filename, flags, 0, 0, blockserver_io_manager, fs); 46 47 if (retval) 48 return retval; 49 50 return ext2fs_read_bitmaps(*fs); 51 } 52 53 // vim: tabstop=2 expandtab shiftwidth=2