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* include/features.h: Grok _ATFILE_SOURCE and define __USE_ATFILE when

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it or _GNU_SOURCE is defined.
	* io/fcntl.h: Protect *at and AT_* with [__USE_ATFILE] instead of
	[__USE_GNU].
	* libio/stdio.h: Likewise.
	* posix/unistd.h: Likewise.
	* time/sys/time.h: Likewise.
This commit is contained in:
Roland McGrath 2006-01-05 12:25:42 +00:00
parent c90c5d4106
commit 0b8f25bbca
6 changed files with 34 additions and 15 deletions
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8
ChangeLog
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@ -1,5 +1,13 @@
2006-01-05 Roland McGrath <roland@redhat.com>
* include/features.h: Grok _ATFILE_SOURCE and define __USE_ATFILE when
it or _GNU_SOURCE is defined.
* io/fcntl.h: Protect *at and AT_* with [__USE_ATFILE] instead of
[__USE_GNU].
* libio/stdio.h: Likewise.
* posix/unistd.h: Likewise.
* time/sys/time.h: Likewise.
* io/sys/stat.h [__USE_GNU]: Declare fchmodat.
* io/fchmodat.c: New file.
* io/Makefile (routines): Add fchmodat.

12
include/features.h
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@ -1,4 +1,5 @@
/* Copyright (C) 1991-1993,1995-2003,2004,2005 Free Software Foundation, Inc.
/* Copyright (C) 1991,1992,1993,1995,1996,1997,1998,1999,2000,2001,2002,2003,2004,2005,2006
Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@ -38,6 +39,7 @@
_FILE_OFFSET_BITS=N Select default filesystem interface.
_BSD_SOURCE ISO C, POSIX, and 4.3BSD things.
_SVID_SOURCE ISO C, POSIX, and SVID things.
_ATFILE_SOURCE Additional *at interfaces.
_GNU_SOURCE All of the above, plus GNU extensions.
_REENTRANT Select additionally reentrant object.
_THREAD_SAFE Same as _REENTRANT, often used by other systems.
@ -69,6 +71,7 @@
__USE_BSD Define 4.3BSD things.
__USE_SVID Define SVID things.
__USE_MISC Define things common to BSD and System V Unix.
__USE_ATFILE Define *at interfaces and AT_* constants for them.
__USE_GNU Define GNU extensions.
__USE_REENTRANT Define reentrant/thread-safe *_r functions.
__USE_FORTIFY_LEVEL Additional security measures used, according to level.
@ -102,6 +105,7 @@
#undef __USE_BSD
#undef __USE_SVID
#undef __USE_MISC
#undef __USE_ATFILE
#undef __USE_GNU
#undef __USE_REENTRANT
#undef __USE_FORTIFY_LEVEL
@ -158,6 +162,8 @@
# define _BSD_SOURCE 1
# undef _SVID_SOURCE
# define _SVID_SOURCE 1
# undef _ATFILE_SOURCE
# define _ATFILE_SOURCE 1
#endif
/* If nothing (other than _GNU_SOURCE) is defined,
@ -256,6 +262,10 @@
# define __USE_SVID 1
#endif
#ifdef _ATFILE_SOURCE
# define __USE_ATFILE 1
#endif
#ifdef _GNU_SOURCE
# define __USE_GNU 1
#endif

12
io/fcntl.h
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@ -1,5 +1,5 @@
/* Copyright (C) 1991,1992,1994-2001,2003,2004,2005
Free Software Foundation, Inc.
/* Copyright (C) 1991,1992,1994-2001,2003,2004,2005,2006
Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@ -56,7 +56,7 @@ __BEGIN_DECLS
# define SEEK_END 2 /* Seek from end of file. */
#endif /* XPG */
#ifdef __USE_GNU
#ifdef __USE_ATFILE
# define AT_FDCWD -100 /* Special value used to indicate
openat should use the current
working directory. */
@ -92,11 +92,11 @@ extern int __REDIRECT (open, (__const char *__file, int __oflag, ...), open64)
extern int open64 (__const char *__file, int __oflag, ...) __nonnull ((1));
#endif
#ifdef __USE_GNU
/* Similar to OPEN but a relative path name is interpreted relative to
#ifdef __USE_ATFILE
/* Similar to `open' but a relative path name is interpreted relative to
the directory for which FD is a descriptor.
NOTE: some other OPENAT implementation support additional functionality
NOTE: some other `openat' implementation support additional functionality
through this interface, especially using the O_XATTR flag. This is not
yet supported here.

4
libio/stdio.h
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@ -1,5 +1,5 @@
/* Define ISO C stdio on top of C++ iostreams.
Copyright (C) 1991,1994-2004, 2005 Free Software Foundation, Inc.
Copyright (C) 1991,1994-2004,2005,2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@ -154,7 +154,7 @@ extern int remove (__const char *__filename) __THROW;
extern int rename (__const char *__old, __const char *__new) __THROW;
__END_NAMESPACE_STD
#ifdef __USE_GNU
#ifdef __USE_ATFILE
/* Rename file OLD relative to OLDFD to NEW relative to NEWFD. */
extern int renameat (int __oldfd, __const char *__old, int __newfd,
__const char *__new) __THROW;

8
posix/unistd.h
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@ -431,7 +431,7 @@ extern int lchown (__const char *__file, __uid_t __owner, __gid_t __group)
#endif /* Use BSD || X/Open Unix. */
#ifdef __USE_GNU
#ifdef __USE_ATFILE
/* Change the owner and group of FILE relative to the directory FD is open
on. */
extern int fchownat (int __fd, __const char *__file, __uid_t __owner,
@ -742,7 +742,7 @@ extern int ttyslot (void) __THROW;
extern int link (__const char *__from, __const char *__to)
__THROW __nonnull ((1, 2)) __wur;
#ifdef __USE_GNU
#ifdef __USE_ATFILE
/* Like link but relative paths in TO and FROM are interpreted relative
to FROMFD and TOFD respectively. */
extern int linkat (int __fromfd, __const char *__from, int __tofd,
@ -761,7 +761,7 @@ extern int readlink (__const char *__restrict __path, char *__restrict __buf,
size_t __len) __THROW __nonnull ((1, 2)) __wur;
#endif /* Use BSD. */
#ifdef __USE_GNU
#ifdef __USE_ATFILE
/* Like symlink but a relative path in TO is interpreted relative to TOFD. */
extern int symlinkat (__const char *__from, int __tofd,
__const char *__to) __THROW __nonnull ((1, 3)) __wur;
@ -775,7 +775,7 @@ extern int readlinkat (int __fd, __const char *__restrict __path,
/* Remove the link NAME. */
extern int unlink (__const char *__name) __THROW __nonnull ((1));
#ifdef __USE_GNU
#ifdef __USE_ATFILE
/* Remove the link NAME relative to FD. */
extern int unlinkat (int __fd, __const char *__name, int __flag)
__THROW __nonnull ((2));

5
time/sys/time.h
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@ -1,4 +1,5 @@
/* Copyright (C) 1991-1994,1996-2002,2003,2005 Free Software Foundation, Inc.
/* Copyright (C) 1991-1994,1996-2002,2003,2005,2006
Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@ -148,7 +149,7 @@ extern int lutimes (__const char *__file, __const struct timeval __tvp[2])
extern int futimes (int __fd, __const struct timeval __tvp[2]) __THROW;
#endif
#ifdef __USE_GNU
#ifdef __USE_ATFILE
/* Change the access time of FILE relative to FD to TVP[0] and the
modification time of FILE to TVP[1]. If TVP is a null pointer, use
the current time instead. Returns 0 on success, -1 on errors. */