diff options
Diffstat (limited to 'lib/libc/posix1e/acl_valid.c')
| -rw-r--r-- | lib/libc/posix1e/acl_valid.c | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/lib/libc/posix1e/acl_valid.c b/lib/libc/posix1e/acl_valid.c new file mode 100644 index 0000000..d4cb872 --- /dev/null +++ b/lib/libc/posix1e/acl_valid.c @@ -0,0 +1,124 @@ +/*- + * Copyright (c) 1999, 2000, 2001, 2002 Robert N. M. Watson + * All rights reserved. + * + * This software was developed by Robert Watson for the TrustedBSD Project. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ +/* + * acl_valid -- POSIX.1e ACL check routine + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/types.h> +#include "namespace.h" +#include <sys/acl.h> +#include "un-namespace.h" +#include <sys/errno.h> +#include <stdlib.h> + +#include "acl_support.h" + +/* + * acl_valid: accepts an ACL, returns 0 on valid ACL, -1 for invalid, + * and errno set to EINVAL. + * + * Implemented by calling the acl_check routine in acl_support, which + * requires ordering. We call acl_support's _posix1e_acl_sort to make this + * true. POSIX.1e allows acl_valid() to reorder the ACL as it sees fit. + * + * This call is deprecated, as it doesn't ask whether the ACL is valid + * for a particular target. However, this call is standardized, unlike + * the other two forms. + */ +int +acl_valid(acl_t acl) +{ + int error; + + if (acl == NULL) { + errno = EINVAL; + return (-1); + } + if (!_acl_brand_may_be(acl, ACL_BRAND_POSIX)) { + errno = EINVAL; + return (-1); + } + _posix1e_acl_sort(acl); + error = _posix1e_acl_check(acl); + if (error) { + errno = error; + return (-1); + } else { + return (0); + } +} + +int +acl_valid_file_np(const char *pathp, acl_type_t type, acl_t acl) +{ + + if (pathp == NULL || acl == NULL) { + errno = EINVAL; + return (-1); + } + type = _acl_type_unold(type); + if (_posix1e_acl(acl, type)) + _posix1e_acl_sort(acl); + + return (__acl_aclcheck_file(pathp, type, &acl->ats_acl)); +} + +int +acl_valid_link_np(const char *pathp, acl_type_t type, acl_t acl) +{ + + if (pathp == NULL || acl == NULL) { + errno = EINVAL; + return (-1); + } + type = _acl_type_unold(type); + if (_posix1e_acl(acl, type)) + _posix1e_acl_sort(acl); + + return (__acl_aclcheck_link(pathp, type, &acl->ats_acl)); +} + +int +acl_valid_fd_np(int fd, acl_type_t type, acl_t acl) +{ + + if (acl == NULL) { + errno = EINVAL; + return (-1); + } + type = _acl_type_unold(type); + if (_posix1e_acl(acl, type)) + _posix1e_acl_sort(acl); + + acl->ats_cur_entry = 0; + + return (___acl_aclcheck_fd(fd, type, &acl->ats_acl)); +} |
