lib/lstat.c

   1 /* Work around the bug in some systems whereby lstat succeeds when
   2    given the zero-length file name argument.  The lstat from SunOS4.1.4
   3    has this bug.
   4    Copyright (C) 1997, 1998 Free Software Foundation, Inc.
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2, or (at your option)
   9    any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software Foundation,
  18    Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  19
  20 /* written by Jim Meyering */
  21
  22 #include <config.h>
  23
  24 #include <sys/types.h>
  25 #include <sys/stat.h>
  26 #include <errno.h>
  27 #ifndef errno
  28 extern int errno;
  29 #endif
  30
  31 /* This is a wrapper for lstat(2).
  32    If FILE is the empty string, fail with errno == ENOENT.
  33    Otherwise, return the result of calling the real lstat.
  34
  35    This works around the bug in some systems whereby lstat succeeds when
  36    given the zero-length file name argument.  The lstat from SunOS4.1.4
  37    has this bug.  */
  38
  39 int
  40 rpl_lstat (const char *file, struct stat *sbuf)
  41 {
  42   if (file && *file == 0)
  43     {
  44       errno = ENOENT;
  45       return -1;
  46     }
  47
  48   return lstat (file, sbuf);
  49 }