[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: dirent.h on MSVC
|
From: |
Bruno Haible |
|
Subject: |
Re: dirent.h on MSVC |
|
Date: |
Tue, 13 Sep 2011 01:40:01 +0200 |
|
User-agent: |
KMail/1.13.6 (Linux/2.6.37.6-0.5-desktop; KDE/4.6.0; x86_64; ; ) |
Here comes a working implementation of the <dirent.h> function for MSVC.
I'm not implementing telldir() and seekdir() because these functions
- are marked as XSI in POSIX,
- would be inefficient
- are anyway unreliable (if the contents of the directory has changed).
Note that
- 'readdir' depends on 'largefile', because of readdir64 on glibc and
(similarly) Solaris and MacOS X systems,
- 'opendir' and 'rewinddir' depend on 'largefile' as well, because
MacOS X has the functions opendir$INODE64$UNIX2003 and
rewinddir$INODE64$UNIX2003.
2011-09-12 Bruno Haible <address@hidden>
New modules 'opendir', 'readdir', 'rewinddir', 'closedir'.
* lib/dirent.in.h (struct dirent): New type.
(DT_UNKNOWN, DT_FIFO, DT_CHR, DT_DIR, DT_BLK, DT_REG, DT_LNK, DT_SOCK,
DT_WHT): New macros.
(DIR): New type.
(opendir, closedir): Declare only if the module 'opendir' is enabled.
(readdir, rewinddir): New declarations.
* lib/dirent-private.h: New file.
* lib/opendir.c: New file.
* lib/readdir.c: New file.
* lib/rewinddir.c: New file.
* lib/closedir.c: New file.
* lib/fchdir.c (rpl_closedir, rpl_opendir): Remove functions.
* m4/opendir.m4: New file.
* m4/readdir.m4: New file.
* m4/rewinddir.m4: New file.
* m4/closedir.m4: New file.
* m4/fchdir.m4 (gl_FUNC_FCHDIR): Don't set REPLACE_OPENDIR,
REPLACE_CLOSEDIR here.
* m4/dirent_h.m4 (gl_DIRENT_H): Also check whether closedir, opendir,
readdir, rewinddir are declared.
(gl_DIRENT_H_DEFAULTS): Initialize GNULIB_OPENDIR, GNULIB_READDIR,
GNULIB_REWINDDIR, GNULIB_CLOSEDIR, HAVE_OPENDIR, HAVE_READDIR,
HAVE_REWINDDIR, HAVE_CLOSEDIR.
* modules/dirent (Makefile.am): Substitute GNULIB_OPENDIR,
GNULIB_READDIR, GNULIB_REWINDDIR, GNULIB_CLOSEDIR, HAVE_OPENDIR,
HAVE_READDIR, HAVE_REWINDDIR, HAVE_CLOSEDIR.
* modules/opendir: New file.
* modules/readdir: New file.
* modules/rewinddir: New file.
* modules/closedir: New file.
* doc/posix-functions/opendir.texi: Mention the 'opendir' module.
* doc/posix-functions/readdir.texi: Mention the 'readdir' module.
* doc/posix-functions/rewinddir.texi: Mention the 'rewinddir' module.
* doc/posix-functions/closedir.texi: Mention the 'closedir' module.
* NEWS: Mention the 'fchdir' change.
============================= lib/dirent-private.h =============================
/* Private details of the DIR type.
Copyright (C) 2011 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
the Free Software Foundation; either version 3 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, see <http://www.gnu.org/licenses/>. */
#ifndef _DIRENT_PRIVATE_H
#define _DIRENT_PRIVATE_H 1
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
struct gl_directory
{
/* Status, or error code to produce in next readdir() call.
-2 means the end of the directory is already reached,
-1 means the entry was already filled by FindFirstFile,
0 means the entry needs to be filled using FindNextFile.
A positive value is an error code. */
int status;
/* Handle, reading the directory, at current position. */
HANDLE current;
/* Found directory entry. */
WIN32_FIND_DATA entry;
/* Argument to pass to FindFirstFile. It consists of the absolutized
directory name, followed by a directory separator and the wildcards. */
char dir_name_mask[1];
};
#endif /* _DIRENT_PRIVATE_H */
================================ lib/opendir.c ================================
/* Start reading the entries of a directory.
Copyright (C) 2006-2011 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
the Free Software Foundation; either version 3 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, see <http://www.gnu.org/licenses/>. */
#include <config.h>
/* Specification. */
#include <dirent.h>
#if HAVE_OPENDIR
/* Override opendir(), to keep track of the open file descriptors.
Needed because there is a function dirfd(). */
#else
# include <errno.h>
# include <stddef.h>
# include <stdlib.h>
# include "dirent-private.h"
# include "filename.h"
#endif
DIR *
opendir (const char *dir_name)
{
#if HAVE_OPENDIR
# undef opendir
DIR *dirp;
dirp = opendir (dir_name);
if (dirp == NULL)
return NULL;
#else
char dir_name_mask[MAX_PATH + 1 + 1 + 1];
int status;
HANDLE current;
WIN32_FIND_DATA entry;
struct gl_directory *dirp;
if (dir_name[0] == '\0')
{
errno = ENOENT;
return NULL;
}
/* Make the dir_name absolute, so that we continue reading the same
directory if the current directory changed between this opendir()
call and a subsequent rewinddir() call. */
if (!GetFullPathName (dir_name, MAX_PATH, dir_name_mask, NULL))
{
errno = EINVAL;
return NULL;
}
/* Append the mask.
"*" and "*.*" appear to be equivalent. */
{
char *p;
p = dir_name_mask + strlen (dir_name_mask);
if (p > dir_name_mask && !ISSLASH (p[-1]))
*p++ = '\\';
*p++ = '*';
*p = '\0';
}
/* Start searching the directory. */
status = -1;
current = FindFirstFile (dir_name_mask, &entry);
if (current == INVALID_HANDLE_VALUE)
{
switch (GetLastError ())
{
case ERROR_FILE_NOT_FOUND:
status = -2;
break;
case ERROR_PATH_NOT_FOUND:
errno = ENOENT;
return NULL;
case ERROR_DIRECTORY:
errno = ENOTDIR;
return NULL;
case ERROR_ACCESS_DENIED:
errno = EACCES;
return NULL;
default:
errno = EIO;
return NULL;
}
}
/* Allocate the result. */
dirp =
(struct gl_directory *)
malloc (offsetof (struct gl_directory, dir_name_mask[0])
+ strlen (dir_name_mask) + 1);
if (dirp == NULL)
{
if (current != INVALID_HANDLE_VALUE)
FindClose (current);
errno = ENOMEM;
return NULL;
}
dirp->status = status;
dirp->current = current;
if (status == -1)
memcpy (&dirp->entry, &entry, sizeof (WIN32_FIND_DATA));
strcpy (dirp->dir_name_mask, dir_name_mask);
#endif
#if REPLACE_FCHDIR
{
int fd = dirfd (dirp);
if (0 <= fd && _gl_register_fd (fd, dir_name) != fd)
{
int saved_errno = errno;
closedir (dirp);
errno = saved_errno;
return NULL;
}
}
#endif
return dirp;
}
================================ lib/readdir.c ================================
/* Read the next entry of a directory.
Copyright (C) 2011 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
the Free Software Foundation; either version 3 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, see <http://www.gnu.org/licenses/>. */
#include <config.h>
/* Specification. */
#include <dirent.h>
#include <errno.h>
#include <stddef.h>
#include "dirent-private.h"
struct dirent *
readdir (DIR *dirp)
{
char type;
struct dirent *result;
/* There is no need to add code to produce entries for "." and "..".
According to the POSIX:2008 section "4.12 Pathname Resolution"
<http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap04.html>
"." and ".." are syntactic entities.
POSIX also says:
"If entries for dot or dot-dot exist, one entry shall be returned
for dot and one entry shall be returned for dot-dot; otherwise,
they shall not be returned." */
switch (dirp->status)
{
case -2:
/* End of directory already reached. */
return NULL;
case -1:
break;
case 0:
if (!FindNextFile (dirp->current, &dirp->entry))
{
switch (GetLastError ())
{
case ERROR_NO_MORE_FILES:
dirp->status = -2;
return NULL;
default:
errno = EIO;
return NULL;
}
}
break;
default:
errno = dirp->status;
return NULL;
}
dirp->status = 0;
if (dirp->entry.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
type = DT_DIR;
else if (dirp->entry.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT)
type = DT_LNK;
else if ((dirp->entry.dwFileAttributes
& ~(FILE_ATTRIBUTE_READONLY
| FILE_ATTRIBUTE_HIDDEN
| FILE_ATTRIBUTE_SYSTEM
| FILE_ATTRIBUTE_ARCHIVE
| FILE_ATTRIBUTE_NORMAL
| FILE_ATTRIBUTE_TEMPORARY
| FILE_ATTRIBUTE_SPARSE_FILE
| FILE_ATTRIBUTE_COMPRESSED
| FILE_ATTRIBUTE_NOT_CONTENT_INDEXED
| FILE_ATTRIBUTE_ENCRYPTED)) == 0)
/* Devices like COM1, LPT1, NUL would also have the attributes 0x20 but
they cannot occur here. */
type = DT_REG;
else
type = DT_UNKNOWN;
/* Reuse the memory of dirp->entry for the result. */
result =
(struct dirent *)
((char *) dirp->entry.cFileName - offsetof (struct dirent, d_name[0]));
result->d_type = type;
return result;
}
=============================== lib/rewinddir.c ===============================
/* Restart reading the entries of a directory from the beginning.
Copyright (C) 2011 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
the Free Software Foundation; either version 3 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, see <http://www.gnu.org/licenses/>. */
#include <config.h>
/* Specification. */
#include <dirent.h>
#include <errno.h>
#include "dirent-private.h"
void
rewinddir (DIR *dirp)
{
/* Like in closedir(). */
if (dirp->current != INVALID_HANDLE_VALUE)
FindClose (dirp->current);
/* Like in opendir(). */
dirp->status = -1;
dirp->current = FindFirstFile (dirp->dir_name_mask, &dirp->entry);
if (dirp->current == INVALID_HANDLE_VALUE)
{
switch (GetLastError ())
{
case ERROR_FILE_NOT_FOUND:
dirp->status = -2;
break;
default:
/* Save the error code for the next readdir() call. */
dirp->status = ENOENT;
break;
}
}
}
================================ lib/closedir.c ================================
/* Stop reading the entries of a directory.
Copyright (C) 2006-2011 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
the Free Software Foundation; either version 3 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, see <http://www.gnu.org/licenses/>. */
#include <config.h>
/* Specification. */
#include <dirent.h>
#if HAVE_CLOSEDIR
/* Override closedir(), to keep track of the open file descriptors.
Needed because there is a function dirfd(). */
#else
# include <stdlib.h>
# include "dirent-private.h"
#endif
int
closedir (DIR *dirp)
{
# if REPLACE_FCHDIR
int fd = dirfd (dirp);
# endif
int retval;
#if HAVE_CLOSEDIR
# undef closedir
retval = closedir (dirp);
#else
if (dirp->current != INVALID_HANDLE_VALUE)
FindClose (dirp->current);
free (dirp);
retval = 0;
#endif
#if REPLACE_FCHDIR
if (retval >= 0)
_gl_unregister_fd (fd);
#endif
return retval;
}
================================ m4/opendir.m4 ================================
# opendir.m4 serial 1
dnl Copyright (C) 2011 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
AC_DEFUN([gl_FUNC_OPENDIR],
[
AC_REQUIRE([gl_DIRENT_H_DEFAULTS])
AC_CHECK_FUNCS([opendir])
if test $ac_cv_func_opendir = no; then
HAVE_OPENDIR=0
fi
dnl Replace opendir() for supporting the gnulib-defined fchdir() function,
dnl to keep fchdir's bookkeeping up-to-date.
m4_ifdef([gl_FUNC_FCHDIR], [
gl_TEST_FCHDIR
if test $HAVE_FCHDIR = 0; then
REPLACE_OPENDIR=1
fi
])
])
================================ m4/readdir.m4 ================================
# readdir.m4 serial 1
dnl Copyright (C) 2011 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
AC_DEFUN([gl_FUNC_READDIR],
[
AC_REQUIRE([gl_DIRENT_H_DEFAULTS])
AC_CHECK_FUNCS([readdir])
if test $ac_cv_func_readdir = no; then
HAVE_READDIR=0
fi
])
=============================== m4/rewinddir.m4 ===============================
# rewinddir.m4 serial 1
dnl Copyright (C) 2011 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
AC_DEFUN([gl_FUNC_REWINDDIR],
[
AC_REQUIRE([gl_DIRENT_H_DEFAULTS])
AC_CHECK_FUNCS([rewinddir])
if test $ac_cv_func_rewinddir = no; then
HAVE_REWINDDIR=0
fi
])
================================ m4/closedir.m4 ================================
# closedir.m4 serial 1
dnl Copyright (C) 2011 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
AC_DEFUN([gl_FUNC_CLOSEDIR],
[
AC_REQUIRE([gl_DIRENT_H_DEFAULTS])
AC_CHECK_FUNCS([closedir])
if test $ac_cv_func_closedir = no; then
HAVE_CLOSEDIR=0
fi
dnl Replace closedir() for supporting the gnulib-defined fchdir() function,
dnl to keep fchdir's bookkeeping up-to-date.
m4_ifdef([gl_FUNC_FCHDIR], [
gl_TEST_FCHDIR
if test $HAVE_FCHDIR = 0; then
REPLACE_CLOSEDIR=1
fi
])
])
=============================== modules/opendir ===============================
Description:
opendir() function: start reading the entries of a directory
Files:
lib/opendir.c
lib/dirent-private.h
m4/opendir.m4
Depends-on:
dirent
largefile
filename [test $HAVE_OPENDIR = 0 || test $REPLACE_OPENDIR = 1]
configure.ac:
gl_FUNC_OPENDIR
if test $HAVE_OPENDIR = 0 || test $REPLACE_OPENDIR = 1; then
AC_LIBOBJ([opendir])
fi
gl_DIRENT_MODULE_INDICATOR([opendir])
Makefile.am:
Include:
<dirent.h>
License:
LGPL
Maintainer:
Bruno Haible
=============================== modules/readdir ===============================
Description:
readdir() function: read the next entry of a directory
Files:
lib/readdir.c
lib/dirent-private.h
m4/readdir.m4
Depends-on:
dirent
largefile
configure.ac:
gl_FUNC_READDIR
if test $HAVE_READDIR = 0; then
AC_LIBOBJ([readdir])
fi
gl_DIRENT_MODULE_INDICATOR([readdir])
Makefile.am:
Include:
<dirent.h>
License:
LGPL
Maintainer:
Bruno Haible
============================== modules/rewinddir ==============================
Description:
rewinddir() function: restart reading the entries of a directory from the
beginning
Files:
lib/rewinddir.c
lib/dirent-private.h
m4/rewinddir.m4
Depends-on:
dirent
largefile
configure.ac:
gl_FUNC_REWINDDIR
if test $HAVE_REWINDDIR = 0; then
AC_LIBOBJ([rewinddir])
fi
gl_DIRENT_MODULE_INDICATOR([rewinddir])
Makefile.am:
Include:
<dirent.h>
License:
LGPL
Maintainer:
Bruno Haible
=============================== modules/closedir ===============================
Description:
closedir() function: stop reading the entries of a directory
Files:
lib/closedir.c
lib/dirent-private.h
m4/closedir.m4
Depends-on:
dirent
configure.ac:
gl_FUNC_CLOSEDIR
if test $HAVE_CLOSEDIR = 0 || test $REPLACE_CLOSEDIR = 1; then
AC_LIBOBJ([closedir])
fi
gl_DIRENT_MODULE_INDICATOR([closedir])
Makefile.am:
Include:
<dirent.h>
License:
LGPL
Maintainer:
Bruno Haible
================================================================================
--- NEWS.orig Tue Sep 13 00:26:06 2011
+++ NEWS Tue Sep 13 00:12:44 2011
@@ -12,6 +12,12 @@
Date Modules Changes
+2011-09-12 fchdir This module no longer overrides the functions
+ opendir() and closedir(), unless the modules
+ 'opendir' and 'closedir' are in use, respectively.
+ If you use opendir(), please use module 'opendir'.
+ If you use closedir(), please use module
'closedir'.
+
2011-08-04 pathmax The header file "pathmax.h" no longer defines
PATH_MAX on GNU/Hurd. Please use one of the methods
listed in pathmax.h to ensure your package is
--- doc/posix-functions/closedir.texi.orig Tue Sep 13 00:26:06 2011
+++ doc/posix-functions/closedir.texi Mon Sep 12 03:16:49 2011
@@ -4,15 +4,15 @@
POSIX specification:@*
@url{http://www.opengroup.org/onlinepubs/9699919799/functions/closedir.html}
-Gnulib module: ---
+Gnulib module: closedir
Portability problems fixed by Gnulib:
@itemize
address@hidden
+This function is missing on some platforms:
+MSVC 9.
@end itemize
Portability problems not fixed by Gnulib:
@itemize
address@hidden
-This function is missing on some platforms:
-MSVC 9.
@end itemize
--- doc/posix-functions/opendir.texi.orig Tue Sep 13 00:26:06 2011
+++ doc/posix-functions/opendir.texi Mon Sep 12 03:17:06 2011
@@ -4,18 +4,18 @@
POSIX specification:@*
@url{http://www.opengroup.org/onlinepubs/9699919799/functions/opendir.html}
-Gnulib module: ---
+Gnulib module: opendir
Portability problems fixed by Gnulib:
@itemize
address@hidden
+This function is missing on some platforms:
+MSVC 9.
@end itemize
Portability problems not fixed by Gnulib:
@itemize
@item
-This function is missing on some platforms:
-MSVC 9.
address@hidden
On platforms where @code{off_t} is a 32-bit type, this function may not
work correctly on huge directories larger than 2 GB. Also, on platforms
where @code{ino_t} is a 32-bit type, this function may report inode numbers
--- doc/posix-functions/readdir.texi.orig Tue Sep 13 00:26:06 2011
+++ doc/posix-functions/readdir.texi Mon Sep 12 03:17:17 2011
@@ -4,18 +4,18 @@
POSIX specification:@*
@url{http://www.opengroup.org/onlinepubs/9699919799/functions/readdir.html}
-Gnulib module: ---
+Gnulib module: readdir
Portability problems fixed by Gnulib:
@itemize
address@hidden
+This function is missing on some platforms:
+MSVC 9.
@end itemize
Portability problems not fixed by Gnulib:
@itemize
@item
-This function is missing on some platforms:
-MSVC 9.
address@hidden
On platforms where @code{off_t} is a 32-bit type, this function may not
work correctly on huge directories larger than 2 GB. Also, on platforms
where @code{ino_t} is a 32-bit type, this function may report inode numbers
--- doc/posix-functions/rewinddir.texi.orig Tue Sep 13 00:26:06 2011
+++ doc/posix-functions/rewinddir.texi Mon Sep 12 03:17:31 2011
@@ -4,18 +4,18 @@
POSIX specification:@*
@url{http://www.opengroup.org/onlinepubs/9699919799/functions/rewinddir.html}
-Gnulib module: ---
+Gnulib module: rewinddir
Portability problems fixed by Gnulib:
@itemize
address@hidden
+This function is missing on some platforms:
+MSVC 9.
@end itemize
Portability problems not fixed by Gnulib:
@itemize
@item
-This function is missing on some platforms:
-MSVC 9.
address@hidden
On platforms where @code{long int} is a 32-bit type, this function may not
work correctly on huge directories larger than 2 GB. The fix is to use
the @code{AC_SYS_LARGEFILE} macro (only on MacOS X systems).
--- lib/dirent.in.h.orig Tue Sep 13 00:26:06 2011
+++ lib/dirent.in.h Mon Sep 12 21:58:08 2011
@@ -32,6 +32,29 @@
/* Get ino_t. Needed on some systems, including glibc 2.8. */
#include <sys/types.h>
+#if address@hidden@
+/* Define types DIR and 'struct dirent'. */
+# if !GNULIB_defined_struct_dirent
+struct dirent
+{
+ char d_type;
+ char d_name[1];
+};
+/* Possible values for 'd_type'. */
+# define DT_UNKNOWN 0
+# define DT_FIFO 1 /* FIFO */
+# define DT_CHR 2 /* character device */
+# define DT_DIR 4 /* directory */
+# define DT_BLK 6 /* block device */
+# define DT_REG 8 /* regular file */
+# define DT_LNK 10 /* symbolic link */
+# define DT_SOCK 12 /* socket */
+# define DT_WHT 14 /* whiteout */
+typedef struct gl_directory DIR;
+# define GNULIB_defined_struct_dirent 1
+# endif
+#endif
+
/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
/* The definition of _GL_ARG_NONNULL is copied here. */
@@ -41,16 +64,79 @@
/* Declare overridden functions. */
-#if @REPLACE_CLOSEDIR@
-# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-# define closedir rpl_closedir
-# endif
-_GL_FUNCDECL_RPL (closedir, int, (DIR *) _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_RPL (closedir, int, (DIR *));
-#else
-_GL_CXXALIAS_SYS (closedir, int, (DIR *));
+#if @GNULIB_OPENDIR@
+# if @REPLACE_OPENDIR@
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef opendir
+# define opendir rpl_opendir
+# endif
+_GL_FUNCDECL_RPL (opendir, DIR *, (const char *dir_name) _GL_ARG_NONNULL
((1)));
+_GL_CXXALIAS_RPL (opendir, DIR *, (const char *dir_name));
+# else
+# if address@hidden@
+_GL_FUNCDECL_SYS (opendir, DIR *, (const char *dir_name) _GL_ARG_NONNULL
((1)));
+# endif
+_GL_CXXALIAS_SYS (opendir, DIR *, (const char *dir_name));
+# endif
+_GL_CXXALIASWARN (opendir);
+#elif defined GNULIB_POSIXCHECK
+# undef opendir
+# if HAVE_RAW_DECL_OPENDIR
+_GL_WARN_ON_USE (opendir, "opendir is not portable - "
+ "use gnulib module opendir for portability");
+# endif
+#endif
+
+#if @GNULIB_READDIR@
+# if address@hidden@
+_GL_FUNCDECL_SYS (readdir, struct dirent *, (DIR *dirp) _GL_ARG_NONNULL ((1)));
+# endif
+_GL_CXXALIAS_SYS (readdir, struct dirent *, (DIR *dirp));
+_GL_CXXALIASWARN (readdir);
+#elif defined GNULIB_POSIXCHECK
+# undef readdir
+# if HAVE_RAW_DECL_READDIR
+_GL_WARN_ON_USE (readdir, "readdir is not portable - "
+ "use gnulib module readdir for portability");
+# endif
#endif
+
+#if @GNULIB_REWINDDIR@
+# if address@hidden@
+_GL_FUNCDECL_SYS (rewinddir, void, (DIR *dirp) _GL_ARG_NONNULL ((1)));
+# endif
+_GL_CXXALIAS_SYS (rewinddir, void, (DIR *dirp));
+_GL_CXXALIASWARN (rewinddir);
+#elif defined GNULIB_POSIXCHECK
+# undef rewinddir
+# if HAVE_RAW_DECL_REWINDDIR
+_GL_WARN_ON_USE (rewinddir, "rewinddir is not portable - "
+ "use gnulib module rewinddir for portability");
+# endif
+#endif
+
+#if @GNULIB_CLOSEDIR@
+# if @REPLACE_CLOSEDIR@
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef closedir
+# define closedir rpl_closedir
+# endif
+_GL_FUNCDECL_RPL (closedir, int, (DIR *dirp) _GL_ARG_NONNULL ((1)));
+_GL_CXXALIAS_RPL (closedir, int, (DIR *dirp));
+# else
+# if address@hidden@
+_GL_FUNCDECL_SYS (closedir, int, (DIR *dirp) _GL_ARG_NONNULL ((1)));
+# endif
+_GL_CXXALIAS_SYS (closedir, int, (DIR *dirp));
+# endif
_GL_CXXALIASWARN (closedir);
+#elif defined GNULIB_POSIXCHECK
+# undef closedir
+# if HAVE_RAW_DECL_CLOSEDIR
+_GL_WARN_ON_USE (closedir, "closedir is not portable - "
+ "use gnulib module closedir for portability");
+# endif
+#endif
#if @GNULIB_DIRFD@
/* Return the file descriptor associated with the given directory stream,
@@ -111,17 +197,6 @@
# endif
#endif
-#if @REPLACE_OPENDIR@
-# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-# define opendir rpl_opendir
-# endif
-_GL_FUNCDECL_RPL (opendir, DIR *, (const char *) _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_RPL (opendir, DIR *, (const char *));
-#else
-_GL_CXXALIAS_SYS (opendir, DIR *, (const char *));
-#endif
-_GL_CXXALIASWARN (opendir);
-
#if @GNULIB_SCANDIR@
/* Scan the directory DIR, calling FILTER on each directory entry.
Entries for which FILTER returns nonzero are individually malloc'd,
--- lib/fchdir.c.orig Tue Sep 13 00:26:06 2011
+++ lib/fchdir.c Mon Sep 12 22:16:53 2011
@@ -211,42 +211,6 @@
}
#endif
-/* Override opendir() and closedir(), to keep track of the open file
- descriptors. Needed because there is a function dirfd(). */
-
-int
-rpl_closedir (DIR *dp)
-#undef closedir
-{
- int fd = dirfd (dp);
- int retval = closedir (dp);
-
- if (retval >= 0)
- _gl_unregister_fd (fd);
- return retval;
-}
-
-DIR *
-rpl_opendir (const char *filename)
-#undef opendir
-{
- DIR *dp;
-
- dp = opendir (filename);
- if (dp != NULL)
- {
- int fd = dirfd (dp);
- if (0 <= fd && _gl_register_fd (fd, filename) != fd)
- {
- int saved_errno = errno;
- closedir (dp);
- errno = saved_errno;
- return NULL;
- }
- }
- return dp;
-}
-
/* Override dup(), to keep track of open file descriptors. */
int
--- m4/dirent_h.m4.orig Tue Sep 13 00:26:06 2011
+++ m4/dirent_h.m4 Mon Sep 12 22:00:11 2011
@@ -1,4 +1,4 @@
-# dirent_h.m4 serial 15
+# dirent_h.m4 serial 16
dnl Copyright (C) 2008-2011 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
@@ -24,7 +24,7 @@
dnl Check for declarations of anything we want to poison if the
dnl corresponding gnulib module is not in use.
gl_WARN_ON_USE_PREPARE([[#include <dirent.h>
- ]], [alphasort dirfd fdopendir scandir])
+ ]], [alphasort closedir dirfd fdopendir opendir readdir rewinddir scandir])
])
AC_DEFUN([gl_DIRENT_MODULE_INDICATOR],
@@ -39,18 +39,26 @@
AC_DEFUN([gl_DIRENT_H_DEFAULTS],
[
AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) dnl for REPLACE_FCHDIR
+ GNULIB_OPENDIR=0; AC_SUBST([GNULIB_OPENDIR])
+ GNULIB_READDIR=0; AC_SUBST([GNULIB_READDIR])
+ GNULIB_REWINDDIR=0; AC_SUBST([GNULIB_REWINDDIR])
+ GNULIB_CLOSEDIR=0; AC_SUBST([GNULIB_CLOSEDIR])
GNULIB_DIRFD=0; AC_SUBST([GNULIB_DIRFD])
GNULIB_FDOPENDIR=0; AC_SUBST([GNULIB_FDOPENDIR])
GNULIB_SCANDIR=0; AC_SUBST([GNULIB_SCANDIR])
GNULIB_ALPHASORT=0; AC_SUBST([GNULIB_ALPHASORT])
dnl Assume proper GNU behavior unless another module says otherwise.
+ HAVE_OPENDIR=1; AC_SUBST([HAVE_OPENDIR])
+ HAVE_READDIR=1; AC_SUBST([HAVE_READDIR])
+ HAVE_REWINDDIR=1; AC_SUBST([HAVE_REWINDDIR])
+ HAVE_CLOSEDIR=1; AC_SUBST([HAVE_CLOSEDIR])
HAVE_DECL_DIRFD=1; AC_SUBST([HAVE_DECL_DIRFD])
HAVE_DECL_FDOPENDIR=1;AC_SUBST([HAVE_DECL_FDOPENDIR])
HAVE_FDOPENDIR=1; AC_SUBST([HAVE_FDOPENDIR])
HAVE_SCANDIR=1; AC_SUBST([HAVE_SCANDIR])
HAVE_ALPHASORT=1; AC_SUBST([HAVE_ALPHASORT])
+ REPLACE_OPENDIR=0; AC_SUBST([REPLACE_OPENDIR])
REPLACE_CLOSEDIR=0; AC_SUBST([REPLACE_CLOSEDIR])
REPLACE_DIRFD=0; AC_SUBST([REPLACE_DIRFD])
REPLACE_FDOPENDIR=0; AC_SUBST([REPLACE_FDOPENDIR])
- REPLACE_OPENDIR=0; AC_SUBST([REPLACE_OPENDIR])
])
--- m4/fchdir.m4.orig Tue Sep 13 00:26:06 2011
+++ m4/fchdir.m4 Mon Sep 12 22:10:46 2011
@@ -1,4 +1,4 @@
-# fchdir.m4 serial 17
+# fchdir.m4 serial 18
dnl Copyright (C) 2006-2011 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
@@ -24,8 +24,6 @@
dnl We must also replace anything that can manipulate a directory fd,
dnl to keep our bookkeeping up-to-date. We don't have to replace
dnl fstatat, since no platform has fstatat but lacks fchdir.
- REPLACE_OPENDIR=1
- REPLACE_CLOSEDIR=1
REPLACE_DUP=1
AC_CACHE_CHECK([whether open can visit directories],
[gl_cv_func_open_directory_works],
--- modules/dirent.orig Tue Sep 13 00:26:06 2011
+++ modules/dirent Mon Sep 12 22:02:52 2011
@@ -29,19 +29,27 @@
-e 's|@''PRAGMA_SYSTEM_HEADER''@|@PRAGMA_SYSTEM_HEADER@|g' \
-e 's|@''PRAGMA_COLUMNS''@|@PRAGMA_COLUMNS@|g' \
-e 's|@''NEXT_DIRENT_H''@|$(NEXT_DIRENT_H)|g' \
+ -e 's/@''GNULIB_OPENDIR''@/$(GNULIB_OPENDIR)/g' \
+ -e 's/@''GNULIB_READDIR''@/$(GNULIB_READDIR)/g' \
+ -e 's/@''GNULIB_REWINDDIR''@/$(GNULIB_REWINDDIR)/g' \
+ -e 's/@''GNULIB_CLOSEDIR''@/$(GNULIB_CLOSEDIR)/g' \
-e 's/@''GNULIB_DIRFD''@/$(GNULIB_DIRFD)/g' \
-e 's/@''GNULIB_FDOPENDIR''@/$(GNULIB_FDOPENDIR)/g' \
-e 's/@''GNULIB_SCANDIR''@/$(GNULIB_SCANDIR)/g' \
-e 's/@''GNULIB_ALPHASORT''@/$(GNULIB_ALPHASORT)/g' \
+ -e 's/@''HAVE_OPENDIR''@/$(HAVE_OPENDIR)/g' \
+ -e 's/@''HAVE_READDIR''@/$(HAVE_READDIR)/g' \
+ -e 's/@''HAVE_REWINDDIR''@/$(HAVE_REWINDDIR)/g' \
+ -e 's/@''HAVE_CLOSEDIR''@/$(HAVE_CLOSEDIR)/g' \
-e 's|@''HAVE_DECL_DIRFD''@|$(HAVE_DECL_DIRFD)|g' \
-e 's|@''HAVE_DECL_FDOPENDIR''@|$(HAVE_DECL_FDOPENDIR)|g' \
-e 's|@''HAVE_FDOPENDIR''@|$(HAVE_FDOPENDIR)|g' \
-e 's|@''HAVE_SCANDIR''@|$(HAVE_SCANDIR)|g' \
-e 's|@''HAVE_ALPHASORT''@|$(HAVE_ALPHASORT)|g' \
+ -e 's|@''REPLACE_OPENDIR''@|$(REPLACE_OPENDIR)|g' \
-e 's|@''REPLACE_CLOSEDIR''@|$(REPLACE_CLOSEDIR)|g' \
-e 's|@''REPLACE_DIRFD''@|$(REPLACE_DIRFD)|g' \
-e 's|@''REPLACE_FDOPENDIR''@|$(REPLACE_FDOPENDIR)|g' \
- -e 's|@''REPLACE_OPENDIR''@|$(REPLACE_OPENDIR)|g' \
-e '/definitions of _GL_FUNCDECL_RPL/r $(CXXDEFS_H)' \
-e '/definition of _GL_ARG_NONNULL/r $(ARG_NONNULL_H)' \
-e '/definition of _GL_WARN_ON_USE/r $(WARN_ON_USE_H)' \
--
In memoriam Steve Biko <http://en.wikipedia.org/wiki/Steve_Biko>
- dirent.h on MSVC, Bruno Haible, 2011/09/11
- Re: dirent.h on MSVC,
Bruno Haible <=