kc3-lang/gnulib/lib/lchown.c

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• Hash : bb67d50c
  Author :
  Date : 2002-06-15T07:36:57
  

  (S_ISLNK): Define to 0 if neither S_ISLNK nor S_IFLNK is defined.
  

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• lib/lchown.c

• /* Provide a stub lchown function for systems that lack it.
     Copyright (C) 1998, 1999, 2002 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>
  
  #include <sys/types.h>
  #include <sys/stat.h>
  #include <errno.h>
  #ifndef errno
  extern int errno;
  #endif
  #include "lchown.h"
  
  #ifdef STAT_MACROS_BROKEN
  # undef S_ISLNK
  #endif
  
  #ifndef S_ISLNK
  # ifdef S_IFLNK
  #  define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK)
  # else
  #  define S_ISLNK(m) 0
  # endif
  #endif
  
  /* Declare chown to avoid a warning.  Don't include unistd.h,
     because it may have a conflicting prototype for lchown.  */
  int chown ();
  
  /* Work just like chown, except when FILE is a symbolic link.
     In that case, set errno to ENOSYS and return -1.  */
  
  int
  lchown (const char *file, uid_t uid, gid_t gid)
  {
    struct stat stats;
  
    if (lstat (file, &stats) == 0 && S_ISLNK (stats.st_mode))
      {
        errno = ENOSYS;
        return -1;
      }
  
    return chown (file, uid, gid);
  }
  

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