diff options
Diffstat (limited to 'lib/libc/posix1e/acl_delete_entry.c')
-rw-r--r-- | lib/libc/posix1e/acl_delete_entry.c | 162 |
1 files changed, 0 insertions, 162 deletions
diff --git a/lib/libc/posix1e/acl_delete_entry.c b/lib/libc/posix1e/acl_delete_entry.c deleted file mode 100644 index 09b4507..0000000 --- a/lib/libc/posix1e/acl_delete_entry.c +++ /dev/null @@ -1,162 +0,0 @@ -/* - * Copyright (c) 2001-2002 Chris D. Faulhaber - * All rights reserved. - * - * 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. - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/types.h> -#include "namespace.h" -#include <sys/acl.h> -#include "un-namespace.h" -#include <errno.h> -#include <string.h> -#include <stdio.h> - -#include "acl_support.h" - -static int -_entry_matches(const acl_entry_t a, const acl_entry_t b) -{ - /* - * There is a semantical difference here between NFSv4 and POSIX - * draft ACLs. In POSIX, there may be only one entry for the particular - * user or group. In NFSv4 ACL, there may be any number of them. We're - * trying to be more specific here in that case. - */ - switch (_entry_brand(a)) { - case ACL_BRAND_NFS4: - if (a->ae_tag != b->ae_tag || a->ae_entry_type != b->ae_entry_type) - return (0); - - /* If ae_ids matter, compare them as well. */ - if (a->ae_tag == ACL_USER || a->ae_tag == ACL_GROUP) { - if (a->ae_id != b->ae_id) - return (0); - } - - return (1); - - default: - if ((a->ae_tag == b->ae_tag) && (a->ae_id == b->ae_id)) - return (1); - } - - return (0); -} - -/* - * acl_delete_entry() (23.4.9): remove the ACL entry indicated by entry_d - * from acl. - */ -int -acl_delete_entry(acl_t acl, acl_entry_t entry_d) -{ - struct acl *acl_int; - struct acl_entry entry_int; - int i, j, found = 0; - - if (acl == NULL || entry_d == NULL) { - errno = EINVAL; - return (-1); - } - - acl_int = &acl->ats_acl; - - if (_entry_brand(entry_d) != _acl_brand(acl)) { - errno = EINVAL; - return (-1); - } - - if ((acl->ats_acl.acl_cnt < 1) || - (acl->ats_acl.acl_cnt > ACL_MAX_ENTRIES)) { - errno = EINVAL; - return (-1); - } - - /* Use a local copy to prevent deletion of more than this entry */ - entry_int = *entry_d; - - for (i = 0; i < acl->ats_acl.acl_cnt;) { - if (_entry_matches(&(acl->ats_acl.acl_entry[i]), &entry_int)) { - /* ...shift the remaining entries... */ - for (j = i; j < acl->ats_acl.acl_cnt - 1; ++j) - acl->ats_acl.acl_entry[j] = - acl->ats_acl.acl_entry[j+1]; - /* ...drop the count and zero the unused entry... */ - acl->ats_acl.acl_cnt--; - bzero(&acl->ats_acl.acl_entry[j], - sizeof(struct acl_entry)); - acl->ats_cur_entry = 0; - - /* Continue with the loop to remove all maching entries. */ - found = 1; - } else - i++; - } - - if (found) - return (0); - - errno = EINVAL; - return (-1); -} - -int -acl_delete_entry_np(acl_t acl, int offset) -{ - struct acl *acl_int; - int i; - - if (acl == NULL) { - errno = EINVAL; - return (-1); - } - - acl_int = &acl->ats_acl; - - if (offset < 0 || offset >= acl_int->acl_cnt) { - errno = EINVAL; - return (-1); - } - - if ((acl->ats_acl.acl_cnt < 1) || - (acl->ats_acl.acl_cnt > ACL_MAX_ENTRIES)) { - errno = EINVAL; - return (-1); - } - - /* ...shift the remaining entries... */ - for (i = offset; i < acl->ats_acl.acl_cnt - 1; ++i) - acl->ats_acl.acl_entry[i] = - acl->ats_acl.acl_entry[i+1]; - /* ...drop the count and zero the unused entry... */ - acl->ats_acl.acl_cnt--; - bzero(&acl->ats_acl.acl_entry[i], - sizeof(struct acl_entry)); - acl->ats_cur_entry = 0; - - return (0); -} |