2 * Copyright (c) 1999 Robert N. M. Watson
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * $FreeBSD: src/lib/libposix1e/acl_to_text.c,v 1.2 2000/01/26 04:19:38 rwatson Exp $
29 * acl_to_text - return a text string with a text representation of the acl
33 #include <sys/param.h>
35 #include <sys/errno.h>
40 #include "acl_support.h"
43 * acl_to_text - generate a text form of an acl
44 * spec says nothing about output ordering, so leave in acl order
46 * This function will not produce nice results if it is called with
47 * a non-POSIX.1e semantics ACL.
50 acl_to_text(acl_t acl, ssize_t *len_p)
53 char name_buf[MAXLOGNAME];
54 char perm_buf[ACL_STRING_PERM_MAXSIZE+1],
55 effective_perm_buf[ACL_STRING_PERM_MAXSIZE+1];
59 acl_perm_t ae_perm, effective_perm, mask_perm;
63 mask_perm = ACL_PERM_BITS; /* effective is regular if no mask */
64 for (i = 0; i < acl->acl_cnt; i++)
65 if (acl->acl_entry[i].ae_tag == ACL_MASK)
66 mask_perm = acl->acl_entry[i].ae_perm;
68 for (i = 0; i < acl->acl_cnt; i++) {
69 ae_tag = acl->acl_entry[i].ae_tag;
70 ae_id = acl->acl_entry[i].ae_id;
71 ae_perm = acl->acl_entry[i].ae_perm;
75 error = acl_perm_to_string(ae_perm,
76 ACL_STRING_PERM_MAXSIZE+1, perm_buf);
79 len = asprintf(&tmpbuf, "%suser::%s\n", buf,
90 error = acl_perm_to_string(ae_perm,
91 ACL_STRING_PERM_MAXSIZE+1, perm_buf);
95 error = acl_id_to_name(ae_tag, ae_id, MAXLOGNAME,
100 effective_perm = ae_perm & mask_perm;
101 if (effective_perm != ae_perm) {
102 error = acl_perm_to_string(effective_perm,
103 ACL_STRING_PERM_MAXSIZE+1,
107 len = asprintf(&tmpbuf, "%suser:%s:%s\t\t# "
109 buf, name_buf, perm_buf,
112 len = asprintf(&tmpbuf, "%suser:%s:%s\n", buf,
124 error = acl_perm_to_string(ae_perm,
125 ACL_STRING_PERM_MAXSIZE+1, perm_buf);
129 effective_perm = ae_perm & mask_perm;
130 if (effective_perm != ae_perm) {
131 error = acl_perm_to_string(effective_perm,
132 ACL_STRING_PERM_MAXSIZE+1,
136 len = asprintf(&tmpbuf, "%sgroup::%s\t\t# "
138 buf, perm_buf, effective_perm_buf);
140 len = asprintf(&tmpbuf, "%sgroup::%s\n", buf,
152 error = acl_perm_to_string(ae_perm,
153 ACL_STRING_PERM_MAXSIZE+1, perm_buf);
157 error = acl_id_to_name(ae_tag, ae_id, MAXLOGNAME,
162 effective_perm = ae_perm & mask_perm;
163 if (effective_perm != ae_perm) {
164 error = acl_perm_to_string(effective_perm,
165 ACL_STRING_PERM_MAXSIZE+1,
169 len = asprintf(&tmpbuf, "%sgroup::%s\t\t# "
171 buf, perm_buf, effective_perm_buf);
173 len = asprintf(&tmpbuf, "%sgroup:%s:%s\n", buf,
185 error = acl_perm_to_string(ae_perm,
186 ACL_STRING_PERM_MAXSIZE+1, perm_buf);
190 len = asprintf(&tmpbuf, "%smask::%s\n", buf,
201 error = acl_perm_to_string(ae_perm,
202 ACL_STRING_PERM_MAXSIZE+1, perm_buf);
206 len = asprintf(&tmpbuf, "%sother::%s\n", buf,
224 *len_p = strlen(buf);
229 /* jump to here sets errno already, we just clean up */