cdrtools/libschily/lchmod.c

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2025-06-15 04:19:58 +08:00
/* @(#)lchmod.c 1.1 14/06/03 Copyright 2014 J. Schilling */
/*
* Emulate the behavior of lchmod(const char *name, mode_t mode)
*
* Copyright (c) 2014 J. Schilling
*/
/*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* See the file CDDL.Schily.txt in this distribution for details.
* A copy of the CDDL is also available via the Internet at
* http://www.opensource.org/licenses/cddl1.txt
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file CDDL.Schily.txt from this distribution.
*/
#include <schily/unistd.h>
#include <schily/types.h>
#include <schily/fcntl.h>
#include <schily/stat.h>
#include <schily/maxpath.h>
#include <schily/errno.h>
#include <schily/standard.h>
#include <schily/schily.h>
#ifndef HAVE_LCHMOD
#ifdef PROTOTYPES
EXPORT int
lchmod(const char *name, mode_t mode)
#else
EXPORT int
lchmod(name, mode)
const char *name;
mode_t mode;
#endif
{
struct stat statbuf;
statbuf.st_mode = 0;
fstatat(AT_FDCWD, name, &statbuf, AT_SYMLINK_NOFOLLOW);
#ifdef HAVE_CHMOD
if (!S_ISLNK(statbuf.st_mode))
return (chmod(name, mode));
#else /* !HAVE_CHMOD */
if (!S_ISLNK(statbuf.st_mode)) {
#ifdef ENOSYS
seterrno(ENOSYS);
#else
seterrno(EINVAL);
#endif
return (-1);
}
#endif /* !HAVE_CHMOD */
#ifdef EOPNOTSUPP
seterrno(EOPNOTSUPP);
#else
seterrno(EINVAL);
#endif
return (-1);
}
#endif /* HAVE_LCHMOD */