1 /* 2 * getversion.c - Get a file version on an ext2 file system 3 * 4 * Copyright (C) 1993, 1994 Remy Card <card@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 #include "config.h" 20 #if HAVE_ERRNO_H 21 #include <errno.h> 22 #endif 23 #if HAVE_SYS_IOCTL_H 24 #include <sys/ioctl.h> 25 #endif 26 27 #include "e2p.h" 28 getversion(int fd,unsigned long * version)29int getversion (int fd, unsigned long * version) 30 { 31 #if HAVE_EXT2_IOCTLS 32 int r, ver; 33 34 r = ioctl (fd, EXT2_IOC_GETVERSION, &ver); 35 *version = ver; 36 return r; 37 #else /* ! HAVE_EXT2_IOCTLS */ 38 extern int errno; 39 errno = EOPNOTSUPP; 40 return -1; 41 #endif /* ! HAVE_EXT2_IOCTLS */ 42 } 43