diff options
Diffstat (limited to '')
-rw-r--r-- | utils/mount/version.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/utils/mount/version.h b/utils/mount/version.h new file mode 100644 index 0000000..d7cf680 --- /dev/null +++ b/utils/mount/version.h @@ -0,0 +1,53 @@ +/* + * version.h -- get running kernel version + * + * Copyright (C) 2008 Oracle. All rights reserved. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public + * License along with this program; if not, write to the + * Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 0211-1301 USA + * + */ + +#ifndef _NFS_UTILS_MOUNT_VERSION_H +#define _NFS_UTILS_MOUNT_VERSION_H + +#include <stdio.h> +#include <limits.h> + +#include <sys/utsname.h> + +static inline unsigned int MAKE_VERSION(unsigned int p, unsigned int q, + unsigned int r) +{ + return (65536 * p) + (256 * q) + r; +} + +static inline unsigned int linux_version_code(void) +{ + struct utsname my_utsname; + unsigned int p, q = 0, r = 0; + + /* UINT_MAX as backward compatibility code should not be run */ + if (uname(&my_utsname)) + return UINT_MAX; + + /* UINT_MAX as future versions might not start with an integer */ + if (sscanf(my_utsname.release, "%u.%u.%u", &p, &q, &r) < 1) + return UINT_MAX; + + return MAKE_VERSION(p, q, r); +} + +#endif /* _NFS_UTILS_MOUNT_VERSION_H */ |