1 /* 2 * getversion.c - Get a file version on an ext2 file system 3 * 4 * Copyright (C) 1993, 1994 Remy Card <card (at) masi.ibp.fr> 5 * Laboratoire MASI, Institut Blaise Pascal 6 * Universite Pierre et Marie Curie (Paris VI) 7 * 8 * %Begin-Header% 9 * This file may be redistributed under the terms of the GNU Library 10 * General Public License, version 2. 11 * %End-Header% 12 */ 13 14 /* 15 * History: 16 * 93/10/30 - Creation 17 */ 18 19 #if HAVE_ERRNO_H 20 #include <errno.h> 21 #endif 22 #include <sys/ioctl.h> 23 24 #include "e2p.h" 25 26 int getversion (int fd, unsigned long * version) 27 { 28 #if HAVE_EXT2_IOCTLS 29 int r, ver; 30 31 r = ioctl (fd, EXT2_IOC_GETVERSION, &ver); 32 *version = ver; 33 return r; 34 #else /* ! HAVE_EXT2_IOCTLS */ 35 extern int errno; 36 errno = EOPNOTSUPP; 37 return -1; 38 #endif /* ! HAVE_EXT2_IOCTLS */ 39 } 40
