view lib/lchown.c @ 1365:8a51920b9a22

.
author Jim Meyering <jim@meyering.net>
date Tue, 19 May 1998 15:06:49 +0000
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children 645e6fea2fce
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/* Provide a stub lchown function for systems that lack it.
   Copyright (C) 1998 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 2, 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, write to the Free Software Foundation,
   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */

/* written by Jim Meyering */

#include <config.h>

/* Disable the definition of lchown to rpl_lchown (from config.h) in this
   file.  Otherwise, we'd get conflicting prototypes for rpl_lchown on
   most systems.  */
#undef lchown

#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#ifndef errno
extern int errno;
#endif

/* Work just like chown, except when FILE is a symbolic link.
   In that case, set errno to ENOSYS and return -1.  */

int
rpl_lchown (const chat *file, uid_t uid, gid_t gid)
{
  struct stat stats;

  if (lstat (file, &stats) && S_ISLNK (stats.st_mode))
    {
      errno = ENOSYS;
      return -1;
    }

  return chown (file, uid, gid);
}