xnu-792.12.6.tar.gz

[apple/xnu.git] / bsd / sys / stat.h

diff --git a/bsd/sys/stat.h b/bsd/sys/stat.h
index ffba038f365a255c8cb666ee43eba5a98423dbaf..dc59799f933e8b0cb8ee5c6f98944b6f62ea9651 100644 (file)
--- a/bsd/sys/stat.h
+++ b/bsd/sys/stat.h
@@ -1,23 +1,31 @@
 /*
 /*

- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- * 
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License").  You may not use this file except in compliance with the
- * License.  Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * Copyright (c) 2006 Apple Computer, Inc. All Rights Reserved.

  * 
  * 

- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * @APPLE_LICENSE_OSREFERENCE_HEADER_START@

  * 
  * 

- * @APPLE_LICENSE_HEADER_END@
+ * This file contains Original Code and/or Modifications of Original Code 
+ * as defined in and that are subject to the Apple Public Source License 
+ * Version 2.0 (the 'License'). You may not use this file except in 
+ * compliance with the License.  The rights granted to you under the 
+ * License may not be used to create, or enable the creation or 
+ * redistribution of, unlawful or unlicensed copies of an Apple operating 
+ * system, or to circumvent, violate, or enable the circumvention or 
+ * violation of, any terms of an Apple operating system software license 
+ * agreement.
+ *
+ * Please obtain a copy of the License at 
+ * http://www.opensource.apple.com/apsl/ and read it before using this 
+ * file.
+ *
+ * The Original Code and all software distributed under the License are 
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 
+ * Please see the License for the specific language governing rights and 
+ * limitations under the License.
+ *
+ * @APPLE_LICENSE_OSREFERENCE_HEADER_END@

  */
 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
 /*-
  */
 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
 /*-


@@ -64,116 +72,305 @@
 #ifndef _SYS_STAT_H_
 #define        _SYS_STAT_H_
 
 #ifndef _SYS_STAT_H_
 #define        _SYS_STAT_H_
 

-#include <sys/time.h>
+#include <sys/_types.h>
+#include <sys/cdefs.h>
+
+/*
+ * [XSI] The blkcnt_t, blksize_t, dev_t, ino_t, mode_t, nlink_t, uid_t,
+ * gid_t, off_t, and time_t types shall be defined as described in
+ * <sys/types.h>.
+ */
+#ifndef _BLKCNT_T
+typedef        __darwin_blkcnt_t       blkcnt_t;
+#define        _BLKCNT_T
+#endif
+
+#ifndef _BLKSIZE_T
+typedef        __darwin_blksize_t      blksize_t;
+#define        _BLKSIZE_T
+#endif
+
+#ifndef _DEV_T
+typedef        __darwin_dev_t          dev_t;          /* device number */
+#define _DEV_T
+#endif
+
+#ifndef        _INO_T
+typedef        __darwin_ino_t          ino_t;          /* inode number */
+#define _INO_T
+#endif
+
+#ifndef        _MODE_T
+typedef        __darwin_mode_t         mode_t;
+#define _MODE_T
+#endif
+
+#ifndef _NLINK_T
+typedef        __uint16_t              nlink_t;        /* link count */
+#define        _NLINK_T
+#endif

 
 

-#ifndef _POSIX_SOURCE
+#ifndef _UID_T
+typedef __darwin_uid_t         uid_t;          /* user id */
+#define _UID_T
+#endif
+
+#ifndef _GID_T
+typedef __darwin_gid_t         gid_t;
+#define _GID_T
+#endif
+
+#ifndef _OFF_T
+typedef __darwin_off_t         off_t;
+#define _OFF_T
+#endif
+
+#ifndef        _TIME_T
+#define        _TIME_T
+typedef        __darwin_time_t         time_t;
+#endif
+
+/* [XSI] The timespec structure may be defined as described in <time.h> */
+#ifndef _TIMESPEC
+#define _TIMESPEC
+struct timespec {
+       time_t  tv_sec;         /* seconds */
+       long    tv_nsec;        /* and nanoseconds */
+};
+// LP64todo - should this move?
+#ifdef KERNEL
+/* LP64 version of struct timespec.  time_t is a long and must grow when 
+ * we're dealing with a 64-bit process.
+ * WARNING - keep in sync with struct timespec
+ */
+struct user_timespec {
+       user_time_t     tv_sec;         /* seconds */
+       __int64_t       tv_nsec;        /* and nanoseconds */
+};
+#endif // KERNEL
+#endif /* _TIMESPEC */
+
+
+#ifndef _POSIX_C_SOURCE
+/*
+ * XXX So deprecated, it would make your head spin
+ *
+ * The old stat structure.  In fact, this is not used by the kernel at all,
+ * and should not be used by user space, and should be removed from this
+ * header file entirely (along with the unused cvtstat() prototype in
+ * vnode_internal.h).
+ */

 struct ostat {
 struct ostat {

-       u_int16_t st_dev;               /* inode's device */
-       ino_t     st_ino;               /* inode's number */
-       mode_t    st_mode;              /* inode protection mode */
-       nlink_t   st_nlink;             /* number of hard links */
-       u_int16_t st_uid;               /* user ID of the file's owner */
-       u_int16_t st_gid;               /* group ID of the file's group */
-       u_int16_t st_rdev;              /* device type */
-       int32_t   st_size;              /* file size, in bytes */
+       __uint16_t      st_dev;         /* inode's device */
+       ino_t           st_ino;         /* inode's number */
+       mode_t          st_mode;        /* inode protection mode */
+       nlink_t         st_nlink;       /* number of hard links */
+       __uint16_t      st_uid;         /* user ID of the file's owner */
+       __uint16_t      st_gid;         /* group ID of the file's group */
+       __uint16_t      st_rdev;        /* device type */
+       __int32_t       st_size;        /* file size, in bytes */

        struct  timespec st_atimespec;  /* time of last access */
        struct  timespec st_mtimespec;  /* time of last data modification */
        struct  timespec st_ctimespec;  /* time of last file status change */
        struct  timespec st_atimespec;  /* time of last access */
        struct  timespec st_mtimespec;  /* time of last data modification */
        struct  timespec st_ctimespec;  /* time of last file status change */

-       int32_t   st_blksize;           /* optimal blocksize for I/O */
-       int32_t   st_blocks;            /* blocks allocated for file */
-       u_int32_t st_flags;             /* user defined flags for file */
-       u_int32_t st_gen;               /* file generation number */
+       __int32_t       st_blksize;     /* optimal blocksize for I/O */
+       __int32_t       st_blocks;      /* blocks allocated for file */
+       __uint32_t      st_flags;       /* user defined flags for file */
+       __uint32_t      st_gen;         /* file generation number */

 };
 };

-#endif /* !_POSIX_SOURCE */
+#endif /* !_POSIX_C_SOURCE */

 
 

+/*
+ * [XSI] This structure is used as the second parameter to the fstat(),
+ * lstat(), and stat() functions.
+ */

 struct stat {
 struct stat {

-       dev_t     st_dev;               /* inode's device */
-       ino_t     st_ino;               /* inode's number */
-       mode_t    st_mode;              /* inode protection mode */
-       nlink_t   st_nlink;             /* number of hard links */
-       uid_t     st_uid;               /* user ID of the file's owner */
-       gid_t     st_gid;               /* group ID of the file's group */
-       dev_t     st_rdev;              /* device type */
-#ifndef _POSIX_SOURCE
+       dev_t           st_dev;         /* [XSI] ID of device containing file */
+       ino_t           st_ino;         /* [XSI] File serial number */
+       mode_t          st_mode;        /* [XSI] Mode of file (see below) */
+       nlink_t         st_nlink;       /* [XSI] Number of hard links */
+       uid_t           st_uid;         /* [XSI] User ID of the file */
+       gid_t           st_gid;         /* [XSI] Group ID of the file */
+       dev_t           st_rdev;        /* [XSI] Device ID */
+#ifndef _POSIX_C_SOURCE

        struct  timespec st_atimespec;  /* time of last access */
        struct  timespec st_mtimespec;  /* time of last data modification */
        struct  timespec st_atimespec;  /* time of last access */
        struct  timespec st_mtimespec;  /* time of last data modification */

-       struct  timespec st_ctimespec;  /* time of last file status change */
+       struct  timespec st_ctimespec;  /* time of last status change */

 #else
 #else

-       time_t    st_atime;             /* time of last access */
-       long      st_atimensec;         /* nsec of last access */
-       time_t    st_mtime;             /* time of last data modification */
-       long      st_mtimensec;         /* nsec of last data modification */
-       time_t    st_ctime;             /* time of last file status change */
-       long      st_ctimensec;         /* nsec of last file status change */
-#endif
-       off_t     st_size;              /* file size, in bytes */
-       int64_t   st_blocks;            /* blocks allocated for file */
-       u_int32_t st_blksize;           /* optimal blocksize for I/O */
-       u_int32_t st_flags;             /* user defined flags for file */
-       u_int32_t st_gen;               /* file generation number */
-       int32_t   st_lspare;
-       int64_t   st_qspare[2];
+       time_t          st_atime;       /* [XSI] Time of last access */
+       long            st_atimensec;   /* nsec of last access */
+       time_t          st_mtime;       /* [XSI] Last data modification time */
+       long            st_mtimensec;   /* last data modification nsec */
+       time_t          st_ctime;       /* [XSI] Time of last status change */
+       long            st_ctimensec;   /* nsec of last status change */
+#endif
+       off_t           st_size;        /* [XSI] file size, in bytes */
+       blkcnt_t        st_blocks;      /* [XSI] blocks allocated for file */
+       blksize_t       st_blksize;     /* [XSI] optimal blocksize for I/O */
+       __uint32_t      st_flags;       /* user defined flags for file */
+       __uint32_t      st_gen;         /* file generation number */
+       __int32_t       st_lspare;      /* RESERVED: DO NOT USE! */
+       __int64_t       st_qspare[2];   /* RESERVED: DO NOT USE! */

 };
 
 };
 

+// LP64todo - should this move?
+#ifdef KERNEL
+#include <machine/types.h>

 
 

-#ifndef _POSIX_SOURCE
-#define st_atime st_atimespec.tv_sec
-#define st_mtime st_mtimespec.tv_sec
-#define st_ctime st_ctimespec.tv_sec
+/* LP64 version of struct stat.  time_t (see timespec) is a long and must 
+ * grow when we're dealing with a 64-bit process.
+ * WARNING - keep in sync with struct stat
+ */
+#if __DARWIN_ALIGN_NATURAL
+#pragma options align=natural
+#endif
+
+struct user_stat {
+       dev_t           st_dev;         /* [XSI] ID of device containing file */
+       ino_t           st_ino;         /* [XSI] File serial number */
+       mode_t          st_mode;        /* [XSI] Mode of file (see below) */
+       nlink_t         st_nlink;       /* [XSI] Number of hard links */
+       uid_t           st_uid;         /* [XSI] User ID of the file */
+       gid_t           st_gid;         /* [XSI] Group ID of the file */
+       dev_t           st_rdev;        /* [XSI] Device ID */
+#ifndef _POSIX_C_SOURCE
+       struct  user_timespec st_atimespec; /* time of last access */
+       struct  user_timespec st_mtimespec; /* time of last data modification */
+       struct  user_timespec st_ctimespec; /* time of last status change */
+#else
+       user_time_t     st_atime;       /* [XSI] Time of last access */
+       __int64_t       st_atimensec;   /* nsec of last access */
+       user_time_t     st_mtime;       /* [XSI] Last data modification */
+       __int64_t       st_mtimensec;   /* last data modification nsec */
+       user_time_t     st_ctime;       /* [XSI] Time of last status change */
+       __int64_t       st_ctimensec;   /* nsec of last status change */

 #endif
 #endif

+       off_t           st_size;        /* [XSI] File size, in bytes */
+       blkcnt_t        st_blocks;      /* [XSI] Blocks allocated for file */
+       blksize_t       st_blksize;     /* [XSI] Optimal blocksize for I/O */
+       __uint32_t      st_flags;       /* user defined flags for file */
+       __uint32_t      st_gen;         /* file generation number */
+       __int32_t       st_lspare;      /* RESERVED: DO NOT USE! */
+       __int64_t       st_qspare[2];   /* RESERVED: DO NOT USE! */
+};

 
 

-#define        S_ISUID 0004000                 /* set user id on execution */
-#define        S_ISGID 0002000                 /* set group id on execution */
-#ifndef _POSIX_SOURCE
-#define        S_ISTXT 0001000                 /* sticky bit */
+#if __DARWIN_ALIGN_NATURAL
+#pragma options align=reset

 #endif
 
 #endif
 

-#define        S_IRWXU 0000700                 /* RWX mask for owner */
-#define        S_IRUSR 0000400                 /* R for owner */
-#define        S_IWUSR 0000200                 /* W for owner */
-#define        S_IXUSR 0000100                 /* X for owner */
+extern void munge_stat(struct stat *sbp, struct user_stat *usbp);
+
+#endif // KERNEL
+
+
+#ifndef _POSIX_C_SOURCE
+#define st_atime st_atimespec.tv_sec
+#define st_mtime st_mtimespec.tv_sec
+#define st_ctime st_ctimespec.tv_sec
+#endif

 
 

-#ifndef _POSIX_SOURCE
-#define        S_IREAD         S_IRUSR
-#define        S_IWRITE        S_IWUSR
-#define        S_IEXEC         S_IXUSR
+/*
+ * [XSI] The following are symbolic names for the values of type mode_t.  They
+ * are bitmap values.
+ */
+#ifndef S_IFMT
+/* File type */
+#define        S_IFMT          0170000         /* [XSI] type of file mask */
+#define        S_IFIFO         0010000         /* [XSI] named pipe (fifo) */
+#define        S_IFCHR         0020000         /* [XSI] character special */
+#define        S_IFDIR         0040000         /* [XSI] directory */
+#define        S_IFBLK         0060000         /* [XSI] block special */
+#define        S_IFREG         0100000         /* [XSI] regular */
+#define        S_IFLNK         0120000         /* [XSI] symbolic link */
+#define        S_IFSOCK        0140000         /* [XSI] socket */
+#ifndef _POSIX_C_SOURCE
+#define        S_IFWHT         0160000         /* whiteout */
+#define S_IFXATTR      0200000         /* extended attribute */

 #endif
 
 #endif
 

-#define        S_IRWXG 0000070                 /* RWX mask for group */
-#define        S_IRGRP 0000040                 /* R for group */
-#define        S_IWGRP 0000020                 /* W for group */
-#define        S_IXGRP 0000010                 /* X for group */
+/* File mode */
+/* Read, write, execute/search by owner */
+#define        S_IRWXU         0000700         /* [XSI] RWX mask for owner */
+#define        S_IRUSR         0000400         /* [XSI] R for owner */
+#define        S_IWUSR         0000200         /* [XSI] W for owner */
+#define        S_IXUSR         0000100         /* [XSI] X for owner */
+/* Read, write, execute/search by group */
+#define        S_IRWXG         0000070         /* [XSI] RWX mask for group */
+#define        S_IRGRP         0000040         /* [XSI] R for group */
+#define        S_IWGRP         0000020         /* [XSI] W for group */
+#define        S_IXGRP         0000010         /* [XSI] X for group */
+/* Read, write, execute/search by others */
+#define        S_IRWXO         0000007         /* [XSI] RWX mask for other */
+#define        S_IROTH         0000004         /* [XSI] R for other */
+#define        S_IWOTH         0000002         /* [XSI] W for other */
+#define        S_IXOTH         0000001         /* [XSI] X for other */

 
 

-#define        S_IRWXO 0000007                 /* RWX mask for other */
-#define        S_IROTH 0000004                 /* R for other */
-#define        S_IWOTH 0000002                 /* W for other */
-#define        S_IXOTH 0000001                 /* X for other */
+#define        S_ISUID         0004000         /* [XSI] set user id on execution */
+#define        S_ISGID         0002000         /* [XSI] set group id on execution */
+#define        S_ISVTX         0001000         /* [XSI] directory restrcted delete */

 
 

-#ifndef _POSIX_SOURCE
-#define        S_IFMT   0170000                /* type of file mask */
-#define        S_IFIFO  0010000                /* named pipe (fifo) */
-#define        S_IFCHR  0020000                /* character special */
-#define        S_IFDIR  0040000                /* directory */
-#define        S_IFBLK  0060000                /* block special */
-#define        S_IFREG  0100000                /* regular */
-#define        S_IFLNK  0120000                /* symbolic link */
-#define        S_IFSOCK 0140000                /* socket */
-#define        S_IFWHT  0160000                /* whiteout */
-#define        S_ISVTX  0001000                /* save swapped text even after use */
+#ifndef _POSIX_C_SOURCE
+#define        S_ISTXT         S_ISVTX         /* sticky bit: not supported */
+#define        S_IREAD         S_IRUSR         /* backward compatability */
+#define        S_IWRITE        S_IWUSR         /* backward compatability */
+#define        S_IEXEC         S_IXUSR         /* backward compatability */

 #endif
 #endif

+#endif /* !S_IFMT */

 
 

-#define        S_ISDIR(m)      (((m) & 0170000) == 0040000)    /* directory */
-#define        S_ISCHR(m)      (((m) & 0170000) == 0020000)    /* char special */
+/*
+ * [XSI] The following macros shall be provided to test whether a file is
+ * of the specified type.  The value m supplied to the macros is the value
+ * of st_mode from a stat structure.  The macro shall evaluate to a non-zero
+ * value if the test is true; 0 if the test is false.
+ */

 #define        S_ISBLK(m)      (((m) & 0170000) == 0060000)    /* block special */
 #define        S_ISBLK(m)      (((m) & 0170000) == 0060000)    /* block special */

-#define        S_ISREG(m)      (((m) & 0170000) == 0100000)    /* regular file */
+#define        S_ISCHR(m)      (((m) & 0170000) == 0020000)    /* char special */
+#define        S_ISDIR(m)      (((m) & 0170000) == 0040000)    /* directory */

 #define        S_ISFIFO(m)     (((m) & 0170000) == 0010000)    /* fifo or socket */
 #define        S_ISFIFO(m)     (((m) & 0170000) == 0010000)    /* fifo or socket */

-#ifndef _POSIX_SOURCE
+#define        S_ISREG(m)      (((m) & 0170000) == 0100000)    /* regular file */

 #define        S_ISLNK(m)      (((m) & 0170000) == 0120000)    /* symbolic link */
 #define        S_ISSOCK(m)     (((m) & 0170000) == 0140000)    /* socket */
 #define        S_ISLNK(m)      (((m) & 0170000) == 0120000)    /* symbolic link */
 #define        S_ISSOCK(m)     (((m) & 0170000) == 0140000)    /* socket */

+#ifndef _POSIX_C_SOURCE

 #define        S_ISWHT(m)      (((m) & 0170000) == 0160000)    /* whiteout */
 #define        S_ISWHT(m)      (((m) & 0170000) == 0160000)    /* whiteout */

+#define S_ISXATTR(m)   (((m) & 0200000) == 0200000)    /* extended attribute */

 #endif
 
 #endif
 

-#ifndef _POSIX_SOURCE
+/*
+ * [XSI] The implementation may implement message queues, semaphores, or
+ * shared memory objects as distinct file types.  The following macros
+ * shall be provided to test whether a file is of the specified type.
+ * The value of the buf argument supplied to the macros is a pointer to
+ * a stat structure.  The macro shall evaluate to a non-zero value if
+ * the specified object is implemented as a distinct file type and the
+ * specified file type is contained in the stat structure referenced by
+ * buf.  Otherwise, the macro shall evaluate to zero.
+ *
+ * NOTE:       The current implementation does not do this, although
+ *             this may change in future revisions, and co currently only
+ *             provides these macros to ensure source compatability with
+ *             implementations which do.
+ */
+#define        S_TYPEISMQ(buf)         (0)     /* Test for a message queue */
+#define        S_TYPEISSEM(buf)        (0)     /* Test for a semaphore */
+#define        S_TYPEISSHM(buf)        (0)     /* Test for a shared memory object */
+
+/*
+ * [TYM] The implementation may implement typed memory objects as distinct
+ * file types, and the following macro shall test whether a file is of the
+ * specified type.  The value of the buf argument supplied to the macros is
+ * a pointer to a stat structure.  The macro shall evaluate to a non-zero
+ * value if the specified object is implemented as a distinct file type and
+ * the specified file type is contained in the stat structure referenced by
+ * buf.  Otherwise, the macro shall evaluate to zero.
+ *
+ * NOTE:       The current implementation does not do this, although
+ *             this may change in future revisions, and co currently only
+ *             provides this macro to ensure source compatability with
+ *             implementations which do.
+ */
+#define        S_TYPEISTMO(buf)        (0)     /* Test for a typed memory object */
+
+
+#ifndef _POSIX_C_SOURCE

 #define        ACCESSPERMS     (S_IRWXU|S_IRWXG|S_IRWXO)       /* 0777 */
                                                        /* 7777 */
 #define        ALLPERMS        (S_ISUID|S_ISGID|S_ISTXT|S_IRWXU|S_IRWXG|S_IRWXO)
 #define        ACCESSPERMS     (S_IRWXU|S_IRWXG|S_IRWXO)       /* 0777 */
                                                        /* 7777 */
 #define        ALLPERMS        (S_ISUID|S_ISGID|S_ISTXT|S_IRWXU|S_IRWXG|S_IRWXO)


@@ -211,21 +408,36 @@ struct stat {
 #endif
 
 #ifndef KERNEL
 #endif
 
 #ifndef KERNEL

-#include <sys/cdefs.h>

 
 __BEGIN_DECLS
 
 __BEGIN_DECLS

-int    chmod __P((const char *, mode_t));
-int    fstat __P((int, struct stat *));
-int    mkdir __P((const char *, mode_t));
-int    mkfifo __P((const char *, mode_t));
-int    stat __P((const char *, struct stat *));
-mode_t umask __P((mode_t));
-#ifndef _POSIX_SOURCE
-int    chflags __P((const char *, u_long));
-int    fchflags __P((int, u_long));
-int    fchmod __P((int, mode_t));
-int    lstat __P((const char *, struct stat *));
+/* [XSI] */
+int    chmod(const char *, mode_t);
+int    fchmod(int, mode_t);
+int    fstat(int, struct stat *);
+int    lstat(const char *, struct stat *);
+int    mkdir(const char *, mode_t);
+int    mkfifo(const char *, mode_t);
+int    stat(const char *, struct stat *);
+int    mknod(const char *, mode_t, dev_t);
+mode_t umask(mode_t);
+
+#ifndef _POSIX_C_SOURCE
+#ifndef _FILESEC_T
+struct _filesec;
+typedef struct _filesec        *filesec_t;
+#define _FILESEC_T

 #endif
 #endif

+int    chflags(const char *, __uint32_t);
+int    chmodx_np(const char *, filesec_t);
+int    fchflags(int, __uint32_t);
+int    fchmodx_np(int, filesec_t);
+int    fstatx_np(int, struct stat *, filesec_t);
+int    lstatx_np(const char *, struct stat *, filesec_t);
+int    mkdirx_np(const char *, filesec_t);
+int    mkfifox_np(const char *, filesec_t);
+int    statx_np(const char *, struct stat *, filesec_t);
+int    umaskx_np(filesec_t);
+#endif /* POSIX_C_SOURCE */

 __END_DECLS
 #endif
 #endif /* !_SYS_STAT_H_ */
 __END_DECLS
 #endif
 #endif /* !_SYS_STAT_H_ */