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 * This file can be redistributed under the terms of the GNU Library General 9 * Public License 10 */ 11 12 /* 13 * History: 14 * 93/10/30 - Creation 15 */ 16 17 #if HAVE_ERRNO_H 18 #include <errno.h> 19 #endif 20 #include <sys/ioctl.h> 21 22 #include "e2p.h" 23 getversion(int fd,unsigned long * version)24int getversion (int fd, unsigned long * version) 25 { 26 #if HAVE_EXT2_IOCTLS 27 int r, ver; 28 29 r = ioctl (fd, EXT2_IOC_GETVERSION, &ver); 30 *version = ver; 31 return 0; 32 #else /* ! HAVE_EXT2_IOCTLS */ 33 extern int errno; 34 errno = EOPNOTSUPP; 35 return -1; 36 #endif /* ! HAVE_EXT2_IOCTLS */ 37 } 38