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coreutils/lib/lstat.c
Jim Meyering c091e6fe83 [lstat]: Remove #undef.
(rpl_lstat): Protoize.  Use ENOENT, not EINVAL, to be consistent
with lib/stat.c.
1998-11-08 03:40:04 +00:00

50 lines
1.5 KiB
C

/* Work around the bug in some systems whereby lstat succeeds when
given the zero-length file name argument. The lstat from SunOS4.1.4
has this bug.
Copyright (C) 1997, 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>
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#ifndef errno
extern int errno;
#endif
/* This is a wrapper for lstat(2).
If FILE is the empty string, fail with errno == ENOENT.
Otherwise, return the result of calling the real lstat.
This works around the bug in some systems whereby lstat succeeds when
given the zero-length file name argument. The lstat from SunOS4.1.4
has this bug. */
int
rpl_lstat (const char *file, struct stat *sbuf)
{
if (file && *file == 0)
{
errno = ENOENT;
return -1;
}
return lstat (file, sbuf);
}