acl_entry.c revision 90781
1238384Sjkim/* 2238384Sjkim * Copyright (c) 2001-2002 Chris D. Faulhaber 3238384Sjkim * All rights reserved. 4238384Sjkim * 5238384Sjkim * Redistribution and use in source and binary forms, with or without 6238384Sjkim * modification, are permitted provided that the following conditions 7238384Sjkim * are met: 8238384Sjkim * 1. Redistributions of source code must retain the above copyright 9238384Sjkim * notice, this list of conditions and the following disclaimer. 10238384Sjkim * 2. Redistributions in binary form must reproduce the above copyright 11238384Sjkim * notice, this list of conditions and the following disclaimer in the 12238384Sjkim * documentation and/or other materials provided with the distribution. 13238384Sjkim * 14238384Sjkim * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15238384Sjkim * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16238384Sjkim * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17238384Sjkim * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18238384Sjkim * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19238384Sjkim * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20238384Sjkim * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21238384Sjkim * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22238384Sjkim * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23238384Sjkim * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24238384Sjkim * SUCH DAMAGE. 25238384Sjkim * 26238384Sjkim * $FreeBSD: head/lib/libc/posix1e/acl_entry.c 90781 2002-02-17 20:05:20Z jedgar $ 27238384Sjkim */ 28238384Sjkim 29238384Sjkim#include <sys/types.h> 30238384Sjkim#include "namespace.h" 31238384Sjkim#include <sys/acl.h> 32238384Sjkim#include "un-namespace.h" 33238384Sjkim 34238384Sjkim#include <errno.h> 35238384Sjkim#include <stdlib.h> 36238384Sjkim 37238384Sjkim/* 38238384Sjkim * acl_create_entry() (23.4.7): create a new ACL entry in the ACL pointed 39238384Sjkim * to by acl_p. 40238384Sjkim */ 41238384Sjkimint 42238384Sjkimacl_create_entry(acl_t *acl_p, acl_entry_t *entry_p) 43238384Sjkim{ 44238384Sjkim struct acl *acl_int; 45238384Sjkim 46238384Sjkim if (acl_p == NULL) { 47238384Sjkim errno = EINVAL; 48238384Sjkim return (-1); 49238384Sjkim } 50238384Sjkim 51238384Sjkim acl_int = &(*acl_p)->ats_acl; 52238384Sjkim 53238384Sjkim if ((acl_int->acl_cnt >= ACL_MAX_ENTRIES) || (acl_int->acl_cnt < 0)) { 54238384Sjkim errno = EINVAL; 55238384Sjkim return (-1); 56238384Sjkim } 57238384Sjkim 58238384Sjkim *entry_p = &acl_int->acl_entry[acl_int->acl_cnt++]; 59238384Sjkim 60238384Sjkim (**entry_p).ae_tag = ACL_UNDEFINED_TAG; 61238384Sjkim (**entry_p).ae_id = ACL_UNDEFINED_ID; 62238384Sjkim (**entry_p).ae_perm = ACL_PERM_NONE; 63238384Sjkim 64238384Sjkim (*acl_p)->ats_cur_entry = 0; 65238384Sjkim 66238384Sjkim return (0); 67238384Sjkim} 68238384Sjkim 69238384Sjkim/* 70238384Sjkim * acl_get_entry() (23.4.14): returns an ACL entry from an ACL 71238384Sjkim * indicated by entry_id. 72238384Sjkim */ 73238384Sjkimint 74238384Sjkimacl_get_entry(acl_t acl, int entry_id, acl_entry_t *entry_p) 75238384Sjkim{ 76238384Sjkim struct acl *acl_int; 77238384Sjkim 78238384Sjkim if (acl == NULL) { 79238384Sjkim errno = EINVAL; 80238384Sjkim return (-1); 81238384Sjkim } 82238384Sjkim acl_int = &acl->ats_acl; 83238384Sjkim 84238384Sjkim switch(entry_id) { 85238384Sjkim case ACL_FIRST_ENTRY: 86238384Sjkim acl->ats_cur_entry = 0; 87238384Sjkim /* PASSTHROUGH */ 88238384Sjkim case ACL_NEXT_ENTRY: 89238384Sjkim if (acl->ats_cur_entry >= acl->ats_acl.acl_cnt) 90238384Sjkim return 0; 91238384Sjkim *entry_p = &acl_int->acl_entry[acl->ats_cur_entry++]; 92238384Sjkim return (1); 93238384Sjkim } 94238384Sjkim 95238384Sjkim errno = EINVAL; 96238384Sjkim return (-1); 97238384Sjkim} 98238384Sjkim