kc3-lang/gnulib/lib/dirent.in.h

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• Hash : dfbec8be
  Author :
  Date : 2009-10-06T06:58:08
  

  fdopendir: fix GNU/Hurd bug
  
  fdopendir(open("file",O_RDONLY)) mistakenly succeeded, with
  subsequent readdir() failing with ENOTDIR.
  
  * m4/fdopendir.m4 (gl_FUNC_FDOPENDIR): Check for Hurd bug in
  allowing non-directory fds.
  * lib/fdopendir.c (rpl_fdopendir): Work around it.
  * m4/dirent_h.m4 (gl_DIRENT_H_DEFAULTS): New witness.
  * modules/dirent (Makefile.am): Substitute it.
  * lib/dirent.in.h (fdopendir): Declare replacement.
  * doc/posix-functions/fdopendir.texi (fdopendir): Document this.
  * tests/test-fdopendir.c (main): Test something other than
  /dev/null, since on Hurd that behaves like a directory.
  
  Signed-off-by: Eric Blake <ebb9@byu.net>
  

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• lib/dirent.in.h

• /* A GNU-like <dirent.h>.
     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
     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 _GL_DIRENT_H
  
  #if __GNUC__ >= 3
  @PRAGMA_SYSTEM_HEADER@
  #endif
  
  /* The include_next requires a split double-inclusion guard.  */
  #@INCLUDE_NEXT@ @NEXT_DIRENT_H@
  
  #ifndef _GL_DIRENT_H
  #define _GL_DIRENT_H
  
  /* The definition of GL_LINK_WARNING is copied here.  */
  
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  /* Declare overridden functions.  */
  
  #if @REPLACE_CLOSEDIR@
  # define closedir rpl_closedir
  extern int closedir (DIR *);
  #endif
  
  #if @GNULIB_DIRFD@
  # if !@HAVE_DECL_DIRFD@ && !defined dirfd
  /* Return the file descriptor associated with the given directory stream,
     or -1 if none exists.  */
  extern int dirfd (DIR const *dir);
  # endif
  #elif defined GNULIB_POSIXCHECK
  # undef dirfd
  # define dirfd(d) \
      (GL_LINK_WARNING ("dirfd is unportable - " \
                        "use gnulib module dirfd for portability"), \
       dirfd (d))
  #endif
  
  #if @GNULIB_FDOPENDIR@
  # if @REPLACE_FDOPENDIR@
  #  undef fdopendir
  #  define fdopendir rpl_fdopendir
  # endif
  # if !@HAVE_FDOPENDIR@ || @REPLACE_FDOPENDIR@
  /* Open a directory stream visiting the given directory file
     descriptor.  Return NULL and set errno if fd is not visiting a
     directory.  On success, this function consumes fd (it will be
     implicitly closed either by this function or by a subsequent
     closedir).  */
  extern DIR *fdopendir (int fd);
  # endif
  #elif defined GNULIB_POSIXCHECK
  # undef fdopendir
  # define fdopendir(f) \
      (GL_LINK_WARNING ("fdopendir is unportable - " \
                        "use gnulib module fdopendir for portability"), \
       fdopendir (f))
  #endif
  
  #if @REPLACE_OPENDIR@
  # define opendir rpl_opendir
  extern DIR * opendir (const char *);
  #endif
  
  #if @GNULIB_SCANDIR@
  /* Scan the directory DIR, calling FILTER on each directory entry.
     Entries for which FILTER returns nonzero are individually malloc'd,
     sorted using qsort with CMP, and collected in a malloc'd array in
     *NAMELIST.  Returns the number of entries selected, or -1 on error.  */
  # if !@HAVE_SCANDIR@
  extern int scandir (const char *dir, struct dirent ***namelist,
  		    int (*filter) (const struct dirent *),
  		    int (*cmp) (const struct dirent **, const struct dirent **));
  # endif
  #elif defined GNULIB_POSIXCHECK
  # undef scandir
  # define scandir(d,n,f,c) \
      (GL_LINK_WARNING ("scandir is unportable - " \
                        "use gnulib module scandir for portability"), \
       scandir (d, n, f, c))
  #endif
  
  #if @GNULIB_ALPHASORT@
  /* Compare two 'struct dirent' entries alphabetically.  */
  # if !@HAVE_ALPHASORT@
  extern int alphasort (const struct dirent **, const struct dirent **);
  # endif
  #elif defined GNULIB_POSIXCHECK
  # undef alphasort
  # define alphasort(a,b) \
      (GL_LINK_WARNING ("alphasort is unportable - " \
                        "use gnulib module alphasort for portability"), \
       alphasort (a, b))
  #endif
  
  #ifdef __cplusplus
  }
  #endif
  
  
  #endif /* _GL_DIRENT_H */
  #endif /* _GL_DIRENT_H */
  

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