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 #include <sys/ioctl.h> 24 25 #include "e2p.h" 26 getversion(int fd,unsigned long * version)27int getversion (int fd, unsigned long * version) 28 { 29 #if HAVE_EXT2_IOCTLS 30 int r, ver; 31 32 r = ioctl (fd, EXT2_IOC_GETVERSION, &ver); 33 *version = ver; 34 return r; 35 #else /* ! HAVE_EXT2_IOCTLS */ 36 extern int errno; 37 errno = EOPNOTSUPP; 38 return -1; 39 #endif /* ! HAVE_EXT2_IOCTLS */ 40 } 41