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openat: declare in POSIX headers

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* NEWS: Mention this.
* modules/openat (configure.ac): Declare witnesses.
(Depends-on): Add fcntl-h, sys_stat, unistd.
(Include): Mention correct headers.
* modules/fcntl-h (Depends-on): Add link-warning.
(Files): Add openat.m4.
(Makefile.am): Substitute witnesses.
* modules/sys_stat (Files, Makefile.am): Likewise.
* modules/unistd (Files, Makefile.am): Likewise.
* m4/openat.m4 (gl_FUNC_OPENAT, gl_FUNC_FCHOWNAT): Set witnesses.
(gl_OPENAT_DEFAULTS): New macro.
* m4/fcntl_h.m4 (gl_FCNTL_H_DEFAULTS): Use it.
* m4/unistd_h.m4 (gl_UNISTD_H_DEFAULTS): Likewise.
* m4/sys_stat_h.m4 (gl_SYS_STAT_H_DEFAULTS): Likewise.
(SYS_STAT_H): Remove unused variable.
* doc/posix-headers/fcntl.texi (fcntl.h): Update content.
* lib/fcntl--.h (includes): Remove unneeded header.
* lib/openat-safer.c (includes): Likewise.
* lib/openat.h (AT_FDCWD, AT_SYMLINK_NOFOLLOW, AT_REMOVEDIR)
(openat, fstatat, unlinkat, mkdirat, fchmodat, fchownat): Move to
appropriate headers.
(__OPENAT_PREFIX): Delete.
* lib/fcntl.in.h (openat): Provide declaration.
(AT_FDCWD): Fix Solaris bug.
(AT_SYMLINK_NOFOLLOW, AT_REMOVEDIR): Provide macros.
* lib/sys_stat.in.h (fstatat, mkdirat): Provide declaration.
* lib/fchmodat.c (includes):  Adjust to find declaration.
* lib/fchownat.c (includes): Likewise.
* lib/mkdirat.c (includes): Likewise.
* lib/fstatat.c (includes): Likewise.  Ensure original fstatat is
still visible.

Signed-off-by: Eric Blake <ebb9@byu.net>
This commit is contained in:
Eric Blake
2009-09-02 17:14:26 -06:00
parent 9de26050ef
commit 52c658e924
21 changed files with 237 additions and 83 deletions
Download Patch File Download Diff File Expand all files Collapse all files

35
ChangeLog
View File

@@ -1,3 +1,38 @@
2009-09-03 Eric Blake <ebb9@byu.net>
openat: declare in POSIX headers
* NEWS: Mention this.
* modules/openat (configure.ac): Declare witnesses.
(Depends-on): Add fcntl-h, sys_stat, unistd.
(Include): Mention correct headers.
* modules/fcntl-h (Depends-on): Add link-warning.
(Files): Add openat.m4.
(Makefile.am): Substitute witnesses.
* modules/sys_stat (Files, Makefile.am): Likewise.
* modules/unistd (Files, Makefile.am): Likewise.
* m4/openat.m4 (gl_FUNC_OPENAT, gl_FUNC_FCHOWNAT): Set witnesses.
(gl_OPENAT_DEFAULTS): New macro.
* m4/fcntl_h.m4 (gl_FCNTL_H_DEFAULTS): Use it.
* m4/unistd_h.m4 (gl_UNISTD_H_DEFAULTS): Likewise.
* m4/sys_stat_h.m4 (gl_SYS_STAT_H_DEFAULTS): Likewise.
(SYS_STAT_H): Remove unused variable.
* doc/posix-headers/fcntl.texi (fcntl.h): Update content.
* lib/fcntl--.h (includes): Remove unneeded header.
* lib/openat-safer.c (includes): Likewise.
* lib/openat.h (AT_FDCWD, AT_SYMLINK_NOFOLLOW, AT_REMOVEDIR)
(openat, fstatat, unlinkat, mkdirat, fchmodat, fchownat): Move to
appropriate headers.
(__OPENAT_PREFIX): Delete.
* lib/fcntl.in.h (openat): Provide declaration.
(AT_FDCWD): Fix Solaris bug.
(AT_SYMLINK_NOFOLLOW, AT_REMOVEDIR): Provide macros.
* lib/sys_stat.in.h (fstatat, mkdirat): Provide declaration.
* lib/fchmodat.c (includes): Adjust to find declaration.
* lib/fchownat.c (includes): Likewise.
* lib/mkdirat.c (includes): Likewise.
* lib/fstatat.c (includes): Likewise. Ensure original fstatat is
still visible.
2009-09-02 Eric Blake <ebb9@byu.net>
errno: use consistently

10
NEWS
View File

@@ -6,7 +6,15 @@ User visible incompatible changes
Date Modules Changes
2009-09-30 striconveh The functions mem_cd_iconveh and str_cd_iconveh
2009-09-03 openat The include files are standardized to POSIX 2008.
For openat, include <fcntl.h>; for
fchmodat, fstatat, and mkdirat, include
<sys/stat.h>; for fchownat and unlinkat,
include <unistd.h>. For all other
functions provided by this module,
continue to include "openat.h".
2009-08-30 striconveh The functions mem_cd_iconveh and str_cd_iconveh
now take an 'iconveh_t *' argument instead of three
iconv_t arguments.

11
doc/posix-headers/fcntl.texi
View File

@@ -27,7 +27,13 @@ on some platforms but not on others.
mingw
@item
@samp{AT_FDCWD} and friends are provided by modules like openat.
@samp{AT_FDCWD} is defined with a value too large for an int on some
platforms:
Solaris 10
@item
@samp{AT_FDCWD}, @samp{AT_SYMLINK_NOFOLLOW}, and @samp{AT_REMOVEDIR}
are missing on some platforms.
@end itemize
Portability problems not fixed by Gnulib:
@@ -55,4 +61,7 @@ on some platforms.
@samp{POSIX_FADV_NORMAL}, @samp{POSIX_FADV_RANDOM},
@samp{POSIX_FADV_SEQUENTIAL}, and @samp{POSIX_FADV_WILLNEED} are not
defined on some platforms.
@item
@samp{AT_EACCESS} and @samp{AT_SYMLINK_FOLLOW} are missing on some platforms.
@end itemize

8
lib/fchmodat.c
View File

@@ -1,5 +1,5 @@
/* Change the protections of file relative to an open directory.
Copyright (C) 2006 Free Software Foundation, Inc.
Copyright (C) 2006, 2009 Free Software Foundation, Inc.
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
@@ -18,10 +18,12 @@
#include <config.h>
#include "openat.h"
#include <sys/stat.h>
#include "dirname.h" /* solely for definition of IS_ABSOLUTE_FILE_NAME */
#include "save-cwd.h"
#include "openat.h"
#include "openat-priv.h"
#include "save-cwd.h"
#ifndef HAVE_LCHMOD
/* Use a different name, to avoid conflicting with any

7
lib/fchownat.c
View File

@@ -4,7 +4,7 @@
when the buggy fchownat-with-AT_SYMLINK_NOFOLLOW operates on a symlink, it
mistakenly affects the symlink referent, rather than the symlink itself.
Copyright (C) 2006-2007 Free Software Foundation, Inc.
Copyright (C) 2006-2007, 2009 Free Software Foundation, Inc.
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
@@ -23,13 +23,12 @@
#include <config.h>
#include "openat.h"
#include <unistd.h>
#include "dirname.h" /* solely for definition of IS_ABSOLUTE_FILE_NAME */
#include "save-cwd.h"
#include "openat.h"
#include "openat-priv.h"
#include "save-cwd.h"
/* Replacement for Solaris' function by the same name.
Invoke chown or lchown on file, FILE, using OWNER and GROUP, in the

1
lib/fcntl--.h
View File

@@ -27,7 +27,6 @@
#define creat creat_safer
#if GNULIB_OPENAT_SAFER
# include "openat.h" /* FIXME - <fcntl.h> should be sufficient. */
# undef openat
# define openat openat_safer
#endif

44
lib/fcntl.in.h
View File

@@ -44,6 +44,9 @@
#define _GL_FCNTL_H
/* The definition of GL_LINK_WARNING is copied here. */
/* Declare overridden functions. */
#ifdef __cplusplus
@@ -58,6 +61,20 @@ extern int open (const char *filename, int flags, ...);
# endif
#endif
#if @GNULIB_OPENAT@
# if !@HAVE_OPENAT@
# undef openat
# define openat rpl_openat
int openat (int fd, char const *file, int flags, /* mode_t mode */ ...);
# endif
#elif defined GNULIB_POSIXCHECK
# undef openat
# define openat(f,u,g) \
(GL_LINK_WARNING ("openat is not portable - " \
"use gnulib module openat for portability"), \
openat)
#endif
#ifdef __cplusplus
}
#endif
@@ -148,6 +165,33 @@ extern int open (const char *filename, int flags, ...);
# define O_TEXT 0
#endif
/* Fix up the AT_* macros. */
/* Work around a bug in Solaris 9 and 10: AT_FDCWD is positive. Its
value exceeds INT_MAX, so its use as an int doesn't conform to the
C standard, and GCC and Sun C complain in some cases. If the bug
is present, undef AT_FDCWD here, so it can be redefined below. */
#if 0 < AT_FDCWD && AT_FDCWD == 0xffd19553
# undef AT_FDCWD
#endif
/* Use the same bit pattern as Solaris 9, but with the proper
signedness. The bit pattern is important, in case this actually is
Solaris with the above workaround. */
#ifndef AT_FDCWD
# define AT_FDCWD (-3041965)
#endif
/* Use the same values as Solaris 9. This shouldn't matter, but
there's no real reason to differ. */
#ifndef AT_SYMLINK_NOFOLLOW
# define AT_SYMLINK_NOFOLLOW 4096
#endif
#ifndef AT_REMOVEDIR
# define AT_REMOVEDIR 1
#endif
#endif /* _GL_FCNTL_H */
#endif /* _GL_FCNTL_H */

7
lib/fstatat.c
View File

@@ -1,6 +1,6 @@
/* Work around an fstatat bug on Solaris 9.
Copyright (C) 2006 Free Software Foundation, Inc.
Copyright (C) 2006, 2009 Free Software Foundation, Inc.
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
@@ -19,12 +19,13 @@
#include <config.h>
#define COMPILING_FSTATAT 1
#include "openat.h"
#include <sys/stat.h>
#include <errno.h>
#include <string.h>
#undef fstatat
/* fstatat should always follow symbolic links that end in /, but on
Solaris 9 it doesn't if AT_SYMLINK_NOFOLLOW is specified. This is
the same problem that lstat.c addresses, so solve it in a similar

7
lib/mkdirat.c
View File

@@ -1,5 +1,5 @@
/* fd-relative mkdir
Copyright (C) 2005, 2006 Free Software Foundation, Inc.
Copyright (C) 2005, 2006, 2009 Free Software Foundation, Inc.
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
@@ -18,13 +18,12 @@
#include <config.h>
#include "openat.h"
#include <unistd.h>
#include "dirname.h" /* solely for definition of IS_ABSOLUTE_FILE_NAME */
#include "save-cwd.h"
#include "openat.h"
#include "openat-priv.h"
#include "save-cwd.h"
/* Solaris 10 has no function like this.
Create a subdirectory, FILE, with mode MODE, in the directory

1
lib/openat-safer.c
View File

@@ -22,7 +22,6 @@
#include "fcntl-safer.h"
#include <fcntl.h>
#include "openat.h" /* FIXME - <fcntl.h> should be sufficient. */
#include <stdarg.h>
#include "unistd-safer.h"

45
lib/openat.h
View File

@@ -37,42 +37,10 @@
# define ATTRIBUTE_NORETURN __attribute__ ((__noreturn__))
#endif
/* Work around a bug in Solaris 9 and 10: AT_FDCWD is positive. Its
value exceeds INT_MAX, so its use as an int doesn't conform to the
C standard, and GCC and Sun C complain in some cases. If the bug
is present, undef AT_FDCWD here, so it can be redefined below. */
#if 0 < AT_FDCWD && AT_FDCWD == 0xffd19553
# undef AT_FDCWD
#endif
#if !HAVE_OPENAT
/* Use the same bit pattern as Solaris 9, but with the proper
signedness. The bit pattern is important, in case this actually is
Solaris with the above workaround. */
#ifndef AT_FDCWD
# define AT_FDCWD (-3041965)
#endif
/* Use the same values as Solaris 9. This shouldn't matter, but
there's no real reason to differ. */
#ifndef AT_SYMLINK_NOFOLLOW
# define AT_SYMLINK_NOFOLLOW 4096
# define AT_REMOVEDIR 1
#endif
#ifdef __OPENAT_PREFIX
# undef openat
# define __OPENAT_CONCAT(x, y) x ## y
# define __OPENAT_XCONCAT(x, y) __OPENAT_CONCAT (x, y)
# define __OPENAT_ID(y) __OPENAT_XCONCAT (__OPENAT_PREFIX, y)
# define openat __OPENAT_ID (openat)
int openat (int fd, char const *file, int flags, /* mode_t mode */ ...);
int openat_permissive (int fd, char const *file, int flags, mode_t mode,
int *cwd_errno);
# define fstatat __OPENAT_ID (fstatat)
int fstatat (int fd, char const *file, struct stat *st, int flag);
# define unlinkat __OPENAT_ID (unlinkat)
int unlinkat (int fd, char const *file, int flag);
bool openat_needs_fchdir (void);
#else
@@ -83,19 +51,8 @@ bool openat_needs_fchdir (void);
#endif
#if HAVE_OPENAT && ! LSTAT_FOLLOWS_SLASHED_SYMLINK
int rpl_fstatat (int fd, char const *file, struct stat *st, int flag);
# if !COMPILING_FSTATAT
# undef fstatat
# define fstatat rpl_fstatat
# endif
#endif
int mkdirat (int fd, char const *file, mode_t mode);
void openat_restore_fail (int) ATTRIBUTE_NORETURN;
void openat_save_fail (int) ATTRIBUTE_NORETURN;
int fchmodat (int fd, char const *file, mode_t mode, int flag);
int fchownat (int fd, char const *file, uid_t owner, gid_t group, int flag);
/* Using these function names makes application code
slightly more readable than it would be with

35
lib/sys_stat.in.h
View File

@@ -302,6 +302,41 @@ extern int rpl_lstat (const char *name, struct stat *buf);
lstat (p, b))
#endif
#if @GNULIB_OPENAT@
# if @REPLACE_FSTATAT@
# undef fstatat
# define fstatat rpl_fstatat
# endif
# if !@HAVE_FSTATAT@ || @REPLACE_FSTATAT@
int fstatat (int fd, char const *name, struct stat *st, int flags);
# endif
# if !@HAVE_FCHMODAT@
int fchmodat (int fd, char const *file, mode_t mode, int flag);
# endif
# if !@HAVE_MKDIRAT@
int mkdirat (int fd, char const *file, mode_t mode);
#endif
#elif defined GNULIB_POSIXCHECK
# undef fchmodat
# define fchmodat(d,n,m,f) \
(GL_LINK_WARNING ("fchmodat is not portable - " \
"use gnulib module openat for portability"), \
fchmodat (d, n, m, f))
# undef fstatat
# define fstatat(d,n,s,f) \
(GL_LINK_WARNING ("fstatat is not portable - " \
"use gnulib module openat for portability"), \
fstatat (d, n, s, f))
# undef mkdirat
# define mkdirat(d,n,m) \
(GL_LINK_WARNING ("mkdirat is not portable - " \
"use gnulib module openat for portability"), \
mkdirat (d, n, m))
#endif /* @GNULIB_OPENAT@ */
#if @REPLACE_FCHDIR@
# define fstat rpl_fstat
extern int fstat (int fd, struct stat *buf);

25
lib/unistd.in.h
View File

@@ -138,6 +138,31 @@ extern int chown (const char *file, uid_t uid, gid_t gid);
#endif
#if @GNULIB_OPENAT@
# if @REPLACE_FCHOWNAT@
# undef fchownat
# define fchownat rpl_fchownat
# endif
# if !@HAVE_FCHOWNAT@ || @REPLACE_FCHOWNAT@
int fchownat (int fd, char const *file, uid_t owner, gid_t group, int flag);
# endif
# if !@HAVE_UNLINKAT@
int unlinkat (int fd, char const *file, int flag);
# endif
#elif defined GNULIB_POSIXCHECK
# undef fchownat
# define fchownat(d,n,o,g,f) \
(GL_LINK_WARNING ("fchownat is not portable - " \
"use gnulib module openat for portability"), \
fchownat (d, n, o, g, f))
# undef unlinkat
# define unlinkat(d,n,f) \
(GL_LINK_WARNING ("unlinkat is not portable - " \
"use gnulib module openat for portability"), \
unlinkat (d, n, f))
#endif /* @GNULIB_OPENAT@ */
#if @GNULIB_CLOSE@
# if @REPLACE_CLOSE@
/* Automatically included by modules that need a replacement for close. */

2
m4/fcntl_h.m4
View File

@@ -1,3 +1,4 @@
# serial 2
# Configure fcntl.h.
dnl Copyright (C) 2006, 2007, 2009 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
@@ -90,6 +91,7 @@ AC_DEFUN([gl_FCNTL_MODULE_INDICATOR],
AC_DEFUN([gl_FCNTL_H_DEFAULTS],
[
AC_REQUIRE([gl_OPENAT_DEFAULTS]) dnl for GNULIB_OPENAT
GNULIB_OPEN=0; AC_SUBST([GNULIB_OPEN])
dnl Assume proper GNU behavior unless another module says otherwise.
REPLACE_OPEN=0; AC_SUBST([REPLACE_OPEN])

49
m4/openat.m4
View File

@@ -1,4 +1,4 @@
# serial 19
# serial 20
# See if we need to use our replacement for Solaris' openat et al functions.
dnl Copyright (C) 2004-2009 Free Software Foundation, Inc.
@@ -17,13 +17,24 @@ AC_DEFUN([gl_FUNC_OPENAT],
AC_REQUIRE([AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK])
case $ac_cv_func_openat+$ac_cv_func_lstat_dereferences_slashed_symlink in
yes+yes) ;;
yes+*) AC_LIBOBJ([fstatat]);;
yes+*)
AC_LIBOBJ([fstatat])
REPLACE_FSTATAT=1
;;
*)
AC_DEFINE([__OPENAT_PREFIX], [[rpl_]],
[Define to rpl_ if the openat replacement function should be used.])
HAVE_OPENAT=0
HAVE_UNLINKAT=0 # No known system with unlinkat but not openat
HAVE_FSTATAT=0 # No known system with fstatat but not openat
gl_PREREQ_OPENAT;;
esac
if test $ac_cv_func_fchmodat != yes; then
HAVE_FCHMODAT=0
fi
if test $ac_cv_func_mkdirat != yes; then
HAVE_MKDIRAT=0
fi
gl_FUNC_FCHOWNAT
GNULIB_OPENAT=1
])
# gl_FUNC_FCHOWNAT_DEREF_BUG([ACTION-IF-BUGGY[, ACTION-IF-NOT_BUGGY]])
@@ -68,19 +79,11 @@ main ()
# Also use the replacement function if fchownat is simply not available.
AC_DEFUN([gl_FUNC_FCHOWNAT],
[
# Assume we'll use the replacement function.
# The only case in which we won't is when we have fchownat, and it works.
use_replacement_fchownat=yes
AC_CHECK_FUNC([fchownat], [have_fchownat=yes], [have_fchownat=no])
if test $have_fchownat = yes; then
gl_FUNC_FCHOWNAT_DEREF_BUG([], [use_replacement_fchownat=no])
fi
if test $use_replacement_fchownat = yes; then
AC_CHECK_FUNC([fchownat],
[gl_FUNC_FCHOWNAT_DEREF_BUG([REPLACE_FCHOWNAT=1])],
[HAVE_FCHOWNAT=0])
if test $HAVE_FCHOWNAT = 0 || test $REPLACE_FCHOWNAT = 1; then
AC_LIBOBJ([fchownat])
AC_DEFINE([fchownat], [rpl_fchownat],
[Define to rpl_fchownat if the replacement function should be used.])
fi
])
@@ -89,3 +92,17 @@ AC_DEFUN([gl_PREREQ_OPENAT],
AC_REQUIRE([gl_PROMOTED_TYPE_MODE_T])
:
])
AC_DEFUN([gl_OPENAT_DEFAULTS],
[
GNULIB_OPENAT=0; AC_SUBST([GNULIB_OPENAT])
dnl Assume proper GNU behavior unless another module says otherwise.
HAVE_FCHMODAT=1; AC_SUBST([HAVE_FCHMODAT])
HAVE_FCHOWNAT=1; AC_SUBST([HAVE_FCHOWNAT])
HAVE_FSTATAT=1; AC_SUBST([HAVE_FSTATAT])
HAVE_MKDIRAT=1; AC_SUBST([HAVE_MKDIRAT])
HAVE_OPENAT=1; AC_SUBST([HAVE_OPENAT])
HAVE_UNLINKAT=1; AC_SUBST([HAVE_UNLINKAT])
REPLACE_FCHOWNAT=0; AC_SUBST([REPLACE_FCHOWNAT])
REPLACE_FSTATAT=0; AC_SUBST([REPLACE_FSTATAT])
])

5
m4/sys_stat_h.m4
View File

@@ -1,4 +1,4 @@
# sys_stat_h.m4 serial 11 -*- Autoconf -*-
# sys_stat_h.m4 serial 12 -*- Autoconf -*-
dnl Copyright (C) 2006-2009 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
@@ -28,8 +28,6 @@ AC_DEFUN([gl_HEADER_SYS_STAT_H],
AC_REQUIRE([AC_HEADER_STAT])
gl_CHECK_NEXT_HEADERS([sys/stat.h])
SYS_STAT_H='sys/stat.h'
AC_SUBST([SYS_STAT_H])
dnl Define types that are supposed to be defined in <sys/types.h> or
dnl <sys/stat.h>.
@@ -51,6 +49,7 @@ AC_DEFUN([gl_SYS_STAT_MODULE_INDICATOR],
AC_DEFUN([gl_SYS_STAT_H_DEFAULTS],
[
AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) dnl for REPLACE_FCHDIR
AC_REQUIRE([gl_OPENAT_DEFAULTS]) dnl for GNULIB_OPENAT
GNULIB_LCHMOD=0; AC_SUBST([GNULIB_LCHMOD])
GNULIB_LSTAT=0; AC_SUBST([GNULIB_LSTAT])
dnl Assume proper GNU behavior unless another module says otherwise.

3
m4/unistd_h.m4
View File

@@ -1,4 +1,4 @@
# unistd_h.m4 serial 21
# unistd_h.m4 serial 22
dnl Copyright (C) 2006-2009 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
@@ -32,6 +32,7 @@ AC_DEFUN([gl_UNISTD_MODULE_INDICATOR],
AC_DEFUN([gl_UNISTD_H_DEFAULTS],
[
AC_REQUIRE([gl_OPENAT_DEFAULTS]) dnl for GNULIB_OPENAT
GNULIB_CHOWN=0; AC_SUBST([GNULIB_CHOWN])
GNULIB_CLOSE=0; AC_SUBST([GNULIB_CLOSE])
GNULIB_DUP2=0; AC_SUBST([GNULIB_DUP2])

5
modules/fcntl-h
View File

@@ -4,9 +4,11 @@ Like <fcntl.h>, but with non-working flags defined to 0.
Files:
lib/fcntl.in.h
m4/fcntl_h.m4
m4/openat.m4
Depends-on:
include_next
link-warning
unistd
extensions
@@ -25,7 +27,10 @@ fcntl.h: fcntl.in.h
-e 's|@''PRAGMA_SYSTEM_HEADER''@|@PRAGMA_SYSTEM_HEADER@|g' \
-e 's|@''NEXT_FCNTL_H''@|$(NEXT_FCNTL_H)|g' \
-e 's|@''GNULIB_OPEN''@|$(GNULIB_OPEN)|g' \
-e 's|@''GNULIB_OPENAT''@|$(GNULIB_OPENAT)|g' \
-e 's|@''REPLACE_OPEN''@|$(REPLACE_OPEN)|g' \
-e 's|@''HAVE_OPENAT''@|$(HAVE_OPENAT)|g' \
-e '/definition of GL_LINK_WARNING/r $(LINK_WARNING_H)' \
< $(srcdir)/fcntl.in.h; \
} > $@-t && \
mv $@-t $@

7
modules/openat
View File

@@ -19,6 +19,7 @@ dirname
errno
extensions
fchdir
fcntl-h
fdopendir
gettext-h
intprops
@@ -29,13 +30,19 @@ rmdir
same-inode
save-cwd
stdbool
sys_stat
unistd
configure.ac:
gl_FUNC_OPENAT
gl_MODULE_INDICATOR([openat])
Makefile.am:
Include:
<fcntl.h>
<sys/stat.h>
<unistd.h>
"openat.h"
License:

8
modules/sys_stat
View File

@@ -4,6 +4,7 @@ A <sys/stat.h> for systems with missing declarations.
Files:
lib/sys_stat.in.h
m4/sys_stat_h.m4
m4/openat.m4
m4/unistd_h.m4
Depends-on:
@@ -15,7 +16,7 @@ gl_HEADER_SYS_STAT_H
AC_PROG_MKDIR_P
Makefile.am:
BUILT_SOURCES += $(SYS_STAT_H)
BUILT_SOURCES += sys/stat.h
# We need the following in order to create <sys/stat.h> when the system
# has one that is incomplete.
@@ -28,11 +29,16 @@ sys/stat.h: sys_stat.in.h
-e 's|@''NEXT_SYS_STAT_H''@|$(NEXT_SYS_STAT_H)|g' \
-e 's|@''GNULIB_LCHMOD''@|$(GNULIB_LCHMOD)|g' \
-e 's|@''GNULIB_LSTAT''@|$(GNULIB_LSTAT)|g' \
-e 's|@''GNULIB_OPENAT''@|$(GNULIB_OPENAT)|g' \
-e 's|@''HAVE_FCHMODAT''@|$(HAVE_FCHMODAT)|g' \
-e 's|@''HAVE_FSTATAT''@|$(HAVE_FSTATAT)|g' \
-e 's|@''HAVE_LCHMOD''@|$(HAVE_LCHMOD)|g' \
-e 's|@''HAVE_LSTAT''@|$(HAVE_LSTAT)|g' \
-e 's|@''HAVE_MKDIRAT''@|$(HAVE_MKDIRAT)|g' \
-e 's|@''REPLACE_LSTAT''@|$(REPLACE_LSTAT)|g' \
-e 's|@''REPLACE_MKDIR''@|$(REPLACE_MKDIR)|g' \
-e 's|@''REPLACE_FCHDIR''@|$(REPLACE_FCHDIR)|g' \
-e 's|@''REPLACE_FSTATAT''@|$(REPLACE_FSTATAT)|g' \
-e '/definition of GL_LINK_WARNING/r $(LINK_WARNING_H)' \
< $(srcdir)/sys_stat.in.h; \
} > $@-t && \

5
modules/unistd
View File

@@ -4,6 +4,7 @@ A GNU-like <unistd.h>.
Files:
m4/unistd_h.m4
lib/unistd.in.h
m4/openat.m4
Depends-on:
include_next
@@ -44,6 +45,7 @@ unistd.h: unistd.in.h
-e 's|@''GNULIB_LCHOWN''@|$(GNULIB_LCHOWN)|g' \
-e 's|@''GNULIB_LINK''@|$(GNULIB_LINK)|g' \
-e 's|@''GNULIB_LSEEK''@|$(GNULIB_LSEEK)|g' \
-e 's|@''GNULIB_OPENAT''@|$(GNULIB_OPENAT)|g' \
-e 's|@''GNULIB_PIPE2''@|$(GNULIB_PIPE2)|g' \
-e 's|@''GNULIB_READLINK''@|$(GNULIB_READLINK)|g' \
-e 's|@''GNULIB_SLEEP''@|$(GNULIB_SLEEP)|g' \
@@ -53,6 +55,7 @@ unistd.h: unistd.in.h
-e 's|@''HAVE_DUP2''@|$(HAVE_DUP2)|g' \
-e 's|@''HAVE_DUP3''@|$(HAVE_DUP3)|g' \
-e 's|@''HAVE_EUIDACCESS''@|$(HAVE_EUIDACCESS)|g' \
-e 's|@''HAVE_FCHOWNAT''@|$(HAVE_FCHOWNAT)|g' \
-e 's|@''HAVE_FSYNC''@|$(HAVE_FSYNC)|g' \
-e 's|@''HAVE_FTRUNCATE''@|$(HAVE_FTRUNCATE)|g' \
-e 's|@''HAVE_GETDOMAINNAME''@|$(HAVE_GETDOMAINNAME)|g' \
@@ -64,6 +67,7 @@ unistd.h: unistd.in.h
-e 's|@''HAVE_PIPE2''@|$(HAVE_PIPE2)|g' \
-e 's|@''HAVE_READLINK''@|$(HAVE_READLINK)|g' \
-e 's|@''HAVE_SLEEP''@|$(HAVE_SLEEP)|g' \
-e 's|@''HAVE_UNLINKAT''@|$(HAVE_UNLINKAT)|g' \
-e 's|@''HAVE_DECL_ENVIRON''@|$(HAVE_DECL_ENVIRON)|g' \
-e 's|@''HAVE_DECL_GETLOGIN_R''@|$(HAVE_DECL_GETLOGIN_R)|g' \
-e 's|@''HAVE_OS_H''@|$(HAVE_OS_H)|g' \
@@ -72,6 +76,7 @@ unistd.h: unistd.in.h
-e 's|@''REPLACE_CLOSE''@|$(REPLACE_CLOSE)|g' \
-e 's|@''REPLACE_DUP2''@|$(REPLACE_DUP2)|g' \
-e 's|@''REPLACE_FCHDIR''@|$(REPLACE_FCHDIR)|g' \
-e 's|@''REPLACE_FCHOWNAT''@|$(REPLACE_FCHOWNAT)|g' \
-e 's|@''REPLACE_GETCWD''@|$(REPLACE_GETCWD)|g' \
-e 's|@''REPLACE_GETPAGESIZE''@|$(REPLACE_GETPAGESIZE)|g' \
-e 's|@''REPLACE_LCHOWN''@|$(REPLACE_LCHOWN)|g' \