1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 /*
28 * setlabel - sets a file label.
29 */
30
31 #include <errno.h>
32 #include <fcntl.h>
33 #include <locale.h>
34 #include <pwd.h>
35 #include <stdio.h>
36 #include <stdlib.h>
37 #include <unistd.h>
38 #include <string.h>
39 #include <utmp.h>
40
41 #include <tsol/label.h>
42
43 static int set_label(char *, char *);
44 static int setlabel(char *, bslabel_t *);
45 static void usage(void);
46 static void m_label_err(const char *, const int);
47
48 static char *prog = NULL;
49
50 int
main(int argc,char ** argv)51 main(int argc, char **argv)
52 {
53 int rc = 0;
54 char *label;
55
56 (void) setlocale(LC_ALL, "");
57 #if !defined(TEXT_DOMAIN) /* Should be defined by cc -D */
58 #define TEXT_DOMAIN "SYS_TEST" /* Use this only if it weren't */
59 #endif
60 (void) textdomain(TEXT_DOMAIN);
61
62 if ((prog = strrchr(argv[0], '/')) == NULL)
63 prog = argv[0];
64 else
65 prog++;
66
67 if (argc < 3) {
68 usage();
69 return (2);
70 }
71
72 argv++;
73 argc--;
74
75 label = *argv;
76 argv++;
77 argc--;
78 while (argc-- > 0) {
79 if (set_label(*argv++, label) != 0)
80 rc = 1;
81 }
82
83 return (rc);
84 }
85
86 static int
set_label(char * filename,char * label)87 set_label(char *filename, char *label)
88 {
89 int rval = 0;
90 int err;
91 m_label_t *blabel;
92
93 if ((blabel = m_label_alloc(MAC_LABEL)) == NULL) {
94 (void) fprintf(stderr, "setlabel: ");
95 perror(filename);
96 return (2);
97 }
98 rval = getlabel(filename, blabel);
99 if (rval) {
100 (void) fprintf(stderr, "setlabel: ");
101 perror(filename);
102 return (rval);
103 }
104 if (!bslvalid(blabel)) {
105 (void) fprintf(stderr,
106 gettext("%s: Current label is invalid\n"),
107 filename);
108 blabel = NULL;
109 }
110 if (str_to_label(label, &blabel, MAC_LABEL, L_DEFAULT, &err) == -1) {
111 m_label_err(label, err);
112 }
113
114 rval = setlabel(filename, blabel);
115 if (rval == 0)
116 m_label_free(blabel);
117 return (rval);
118 }
119
120 static int
setlabel(char * filename,bslabel_t * label)121 setlabel(char *filename, bslabel_t *label)
122 {
123 int rval;
124
125 rval = setflabel(filename, label);
126
127 if (rval) {
128 (void) fprintf(stderr, "setlabel: ");
129 perror(filename);
130 }
131 return (rval);
132 }
133
134 static void
m_label_err(const char * ascii,const int err)135 m_label_err(const char *ascii, const int err)
136 {
137 if (errno == EINVAL) {
138 switch (err) {
139 case M_BAD_STRING:
140 (void) fprintf(stderr,
141 gettext("setlabel: bad string %s\n"), ascii);
142 break;
143 case M_BAD_LABEL:
144 (void) fprintf(stderr,
145 gettext("setlabel: bad previous label\n"));
146 break;
147 default:
148 (void) fprintf(stderr,
149 gettext("setlabel: parsing error found in "
150 "\"%s\" at position %d\n"), ascii, err);
151 break;
152 }
153 } else {
154 perror("setlabel");
155 }
156 exit(1);
157 }
158 /*
159 * usage()
160 *
161 * This routine is called whenever there is a usage type of error has
162 * occured. For example, when a invalid option has has been specified.
163 *
164 */
165 static void
usage(void)166 usage(void)
167 {
168
169 (void) fprintf(stderr, gettext("Usage: \n"));
170 (void) fprintf(stderr, gettext(
171 " %s newlabel filename [...] \n"), prog);
172
173 }
174