posixstat.h
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上传日期:2007-04-14
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- /* posixstat.h -- Posix stat(2) definitions for systems that
- don't have them. */
- /* Copyright (C) 1987,1991 Free Software Foundation, Inc.
- This file is part of GNU Bash, the Bourne Again SHell.
- Bash 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 1, or (at your option)
- any later version.
- Bash 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 Bash; see the file COPYING. If not, write to the Free
- Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
- /* This file should be included instead of <sys/stat.h>.
- It relies on the local sys/stat.h to work though. */
- #if !defined (_POSIXSTAT_H_)
- #define _POSIXSTAT_H_
- #include <sys/stat.h>
- #if defined (STAT_MACROS_BROKEN)
- # undef S_ISBLK
- # undef S_ISCHR
- # undef S_ISDIR
- # undef S_ISFIFO
- # undef S_ISREG
- # undef S_ISLNK
- #endif /* STAT_MACROS_BROKEN */
- /* These are guaranteed to work only on isc386 */
- #if !defined (S_IFDIR) && !defined (S_ISDIR)
- # define S_IFDIR 0040000
- #endif /* !S_IFDIR && !S_ISDIR */
- #if !defined (S_IFMT)
- # define S_IFMT 0170000
- #endif /* !S_IFMT */
- /* Posix 1003.1 5.6.1.1 <sys/stat.h> file types */
- /* Some Posix-wannabe systems define _S_IF* macros instead of S_IF*, but
- do not provide the S_IS* macros that Posix requires. */
- #if defined (_S_IFMT) && !defined (S_IFMT)
- #define S_IFMT _S_IFMT
- #endif
- #if defined (_S_IFIFO) && !defined (S_IFIFO)
- #define S_IFIFO _S_IFIFO
- #endif
- #if defined (_S_IFCHR) && !defined (S_IFCHR)
- #define S_IFCHR _S_IFCHR
- #endif
- #if defined (_S_IFDIR) && !defined (S_IFDIR)
- #define S_IFDIR _S_IFDIR
- #endif
- #if defined (_S_IFBLK) && !defined (S_IFBLK)
- #define S_IFBLK _S_IFBLK
- #endif
- #if defined (_S_IFREG) && !defined (S_IFREG)
- #define S_IFREG _S_IFREG
- #endif
- #if defined (_S_IFLNK) && !defined (S_IFLNK)
- #define S_IFLNK _S_IFLNK
- #endif
- #if defined (_S_IFSOCK) && !defined (S_IFSOCK)
- #define S_IFSOCK _S_IFSOCK
- #endif
- /* Test for each symbol individually and define the ones necessary (some
- systems claiming Posix compatibility define some but not all). */
- #if defined (S_IFBLK) && !defined (S_ISBLK)
- #define S_ISBLK(m) (((m)&S_IFMT) == S_IFBLK) /* block device */
- #endif
- #if defined (S_IFCHR) && !defined (S_ISCHR)
- #define S_ISCHR(m) (((m)&S_IFMT) == S_IFCHR) /* character device */
- #endif
- #if defined (S_IFDIR) && !defined (S_ISDIR)
- #define S_ISDIR(m) (((m)&S_IFMT) == S_IFDIR) /* directory */
- #endif
- #if defined (S_IFREG) && !defined (S_ISREG)
- #define S_ISREG(m) (((m)&S_IFMT) == S_IFREG) /* file */
- #endif
- #if defined (S_IFIFO) && !defined (S_ISFIFO)
- #define S_ISFIFO(m) (((m)&S_IFMT) == S_IFIFO) /* fifo - named pipe */
- #endif
- #if defined (S_IFLNK) && !defined (S_ISLNK)
- #define S_ISLNK(m) (((m)&S_IFMT) == S_IFLNK) /* symbolic link */
- #endif
- #if defined (S_IFSOCK) && !defined (S_ISSOCK)
- #define S_ISSOCK(m) (((m)&S_IFMT) == S_IFSOCK) /* socket */
- #endif
- /*
- * POSIX 1003.1 5.6.1.2 <sys/stat.h> File Modes
- */
- #if !defined (S_IRWXU)
- # if !defined (S_IREAD)
- # define S_IREAD 00400
- # define S_IWRITE 00200
- # define S_IEXEC 00100
- # endif /* S_IREAD */
- # if !defined (S_IRUSR)
- # define S_IRUSR S_IREAD /* read, owner */
- # define S_IWUSR S_IWRITE /* write, owner */
- # define S_IXUSR S_IEXEC /* execute, owner */
- # define S_IRGRP (S_IREAD >> 3) /* read, group */
- # define S_IWGRP (S_IWRITE >> 3) /* write, group */
- # define S_IXGRP (S_IEXEC >> 3) /* execute, group */
- # define S_IROTH (S_IREAD >> 6) /* read, other */
- # define S_IWOTH (S_IWRITE >> 6) /* write, other */
- # define S_IXOTH (S_IEXEC >> 6) /* execute, other */
- # endif /* !S_IRUSR */
- # define S_IRWXU (S_IRUSR | S_IWUSR | S_IXUSR)
- # define S_IRWXG (S_IRGRP | S_IWGRP | S_IXGRP)
- # define S_IRWXO (S_IROTH | S_IWOTH | S_IXOTH)
- #endif /* !S_IRWXU */
- /* These are non-standard, but are used in builtins.c$symbolic_umask() */
- #define S_IRUGO (S_IRUSR | S_IRGRP | S_IROTH)
- #define S_IWUGO (S_IWUSR | S_IWGRP | S_IWOTH)
- #define S_IXUGO (S_IXUSR | S_IXGRP | S_IXOTH)
- #endif /* _POSIXSTAT_H_ */