1/*- 2 * Copyright (c) 2001 Chris D. Faulhaber 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 11 unchanged lines hidden (view full) --- 20 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 21 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 22 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 23 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 24 * POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> |
28__FBSDID("$FreeBSD: head/bin/setfacl/remove.c 196936 2009-09-07 16:19:32Z trasz $"); |
29 30#include <sys/types.h> 31#include <sys/acl.h> 32#include <sys/stat.h> 33 34#include <err.h> 35#include <stdio.h> 36#include <string.h> 37 38#include "setfacl.h" 39 40/* 41 * remove ACL entries from an ACL 42 */ 43int |
44remove_acl(acl_t acl, acl_t *prev_acl, const char *filename) |
45{ 46 acl_entry_t entry; 47 acl_t acl_new; 48 acl_tag_t tag; |
49 int carried_error, entry_id, acl_brand, prev_acl_brand; |
50 51 carried_error = 0; 52 |
53 acl_get_brand_np(acl, &acl_brand); 54 acl_get_brand_np(*prev_acl, &prev_acl_brand); 55 56 if (acl_brand != prev_acl_brand) { 57 warnx("%s: branding mismatch; existing ACL is %s, " 58 "entry to be removed is %s", filename, 59 prev_acl_brand == ACL_BRAND_NFS4 ? "NFSv4" : "POSIX.1e", 60 acl_brand == ACL_BRAND_NFS4 ? "NFSv4" : "POSIX.1e"); 61 return (-1); 62 } 63 64 carried_error = 0; 65 66 acl_new = acl_dup(*prev_acl); |
67 if (acl_new == NULL) |
68 err(1, "%s: acl_dup() failed", filename); |
69 70 tag = ACL_UNDEFINED_TAG; 71 72 /* find and delete the entry */ 73 entry_id = ACL_FIRST_ENTRY; 74 while (acl_get_entry(acl, entry_id, &entry) == 1) { 75 entry_id = ACL_NEXT_ENTRY; 76 if (acl_get_tag_type(entry, &tag) == -1) |
77 err(1, "%s: acl_get_tag_type() failed", filename); |
78 if (tag == ACL_MASK) 79 have_mask++; 80 if (acl_delete_entry(acl_new, entry) == -1) { 81 carried_error++; |
82 warnx("%s: cannot remove non-existent ACL entry", 83 filename); |
84 } 85 } 86 |
87 acl_free(*prev_acl); 88 *prev_acl = acl_new; 89 90 if (carried_error) 91 return (-1); 92 93 return (0); 94} 95 96int 97remove_by_number(uint entry_number, acl_t *prev_acl, const char *filename) 98{ 99 acl_entry_t entry; 100 acl_t acl_new; 101 acl_tag_t tag; 102 int carried_error, entry_id; 103 uint i; 104 105 carried_error = 0; 106 107 acl_new = acl_dup(*prev_acl); 108 if (acl_new == NULL) 109 err(1, "%s: acl_dup() failed", filename); 110 111 tag = ACL_UNDEFINED_TAG; 112 113 /* 114 * Find out whether we're removing the mask entry, 115 * to behave the same as the routine above. 116 * 117 * XXX: Is this loop actually needed? 118 */ 119 entry_id = ACL_FIRST_ENTRY; 120 i = 0; 121 while (acl_get_entry(acl_new, entry_id, &entry) == 1) { 122 entry_id = ACL_NEXT_ENTRY; 123 if (i != entry_number) 124 continue; 125 if (acl_get_tag_type(entry, &tag) == -1) 126 err(1, "%s: acl_get_tag_type() failed", filename); 127 if (tag == ACL_MASK) 128 have_mask++; |
129 } 130 |
131 if (acl_delete_entry_np(acl_new, entry_number) == -1) { 132 carried_error++; 133 warn("%s: acl_delete_entry_np() failed", filename); 134 } 135 136 acl_free(*prev_acl); 137 *prev_acl = acl_new; 138 |
139 if (carried_error) 140 return (-1); 141 142 return (0); 143} 144 145/* 146 * remove default entries 147 */ 148int |
149remove_default(acl_t *prev_acl, const char *filename) |
150{ 151 |
152 acl_free(*prev_acl); 153 *prev_acl = acl_init(ACL_MAX_ENTRIES); 154 if (*prev_acl == NULL) 155 err(1, "%s: acl_init() failed", filename); 156 |
157 return (0); 158} 159 160/* 161 * remove extended entries 162 */ 163void |
164remove_ext(acl_t *prev_acl, const char *filename) |
165{ |
166 acl_t acl_new; |
167 |
168 acl_new = acl_strip_np(*prev_acl, !n_flag); |
169 if (acl_new == NULL) |
170 err(1, "%s: acl_strip_np() failed", filename); |
171 |
172 acl_free(*prev_acl); 173 *prev_acl = acl_new; |
174} |