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 2009 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27
28/*
29 *	hextoalabel - Convert an internal label to its human readable
30 *		      equivalent.
31 */
32
33#include <errno.h>
34#include <libintl.h>
35#include <locale.h>
36#include <stdio.h>
37#include <stdlib.h>
38#include <string.h>
39#include <unistd.h>
40#include <stropts.h>
41
42#include <sys/param.h>
43
44#include <tsol/label.h>
45
46#if !defined(TEXT_DOMAIN)
47#define	TEXT_DOMAIN	"SYS_TEST"
48#endif	/* !defined(TEXT_DOMAIN) */
49
50static void
51label_error(const char *hex, const int err)
52{
53	if (errno == EINVAL) {
54		switch (err) {
55		case M_BAD_STRING:
56			(void) fprintf(stderr,
57			    gettext("hextoalabel: bad string %s\n"), hex);
58		break;
59		case M_BAD_LABEL:
60			(void) fprintf(stderr,
61			    gettext("hextoalabel: bad previous label\n"));
62		break;
63		default:
64			(void) fprintf(stderr,
65			    gettext("hextoalabel: parsing error found in "
66			    "\"%s\" at position %d\n"), hex, err);
67		break;
68		}
69	} else {
70		perror("hextoalabel");
71	}
72	exit(1);
73	/*NOTREACHED*/
74}
75
76int
77main(int argc, char **argv)
78{
79	int cflg = 0;			/* true if Clearance only */
80	int errflg = 0;			/* true if arg error */
81	m_label_t *label = NULL;
82	char hex[PIPE_BUF];		/* internal label */
83	char *ascii = NULL;		/* human readable label to print */
84	int err = 0;			/* label error */
85	int c;
86
87	(void) setlocale(LC_ALL, "");
88	(void) textdomain(TEXT_DOMAIN);
89
90	opterr = 0;
91	while ((c = getopt(argc, argv, "c")) != EOF) {
92
93		switch (c) {
94		case 'c':
95			cflg++;
96			break;
97		default:
98			errflg++;
99			break;
100		}
101	}
102
103	argc -= optind - 1;
104	if (errflg || argc > 2) {
105
106		(void) fprintf(stderr,
107		    gettext("usage: %s [-c] [hexadecimal label]\n"), argv[0]);
108		exit(1);
109		/*NOTREACHED*/
110	}
111
112	if (argc == 2) {
113		/* use label on command line */
114
115		(void) strlcpy(hex, argv[optind], sizeof (hex));
116	} else {
117		/* read label from standard input */
118
119		if ((c = read(STDIN_FILENO, hex, sizeof (hex))) <= 0) {
120
121			perror(gettext("reading hexadecimal label"));
122			exit(1);
123			/*NOTREACHED*/
124		}
125
126		/*
127		 * replace '\n' or (end of buffer) with end of string.
128		 */
129		hex[c-1] = '\0';
130
131		/*
132		 * flush any remaining input past the size of the buffer.
133		 */
134		(void) ioctl(STDIN_FILENO, I_FLUSH, FLUSHR);
135	}
136
137	if (cflg) {
138		if (str_to_label(hex, &label, USER_CLEAR, L_NO_CORRECTION,
139		    &err) == -1) {
140			label_error(hex, err);
141		}
142		if (label_to_str(label, &ascii, M_LABEL, DEF_NAMES) != 0) {
143			perror("label_to_str");
144			exit(1);
145		}
146		(void) printf("%s\n", ascii);
147		m_label_free(label);
148		free(ascii);
149	} else {
150		if (str_to_label(hex, &label, MAC_LABEL, L_NO_CORRECTION,
151		    &err) == -1) {
152			label_error(hex, err);
153		}
154		if (label_to_str(label, &ascii, M_LABEL, DEF_NAMES) != 0) {
155			perror("label_to_str");
156			exit(1);
157		}
158		(void) printf("%s\n", ascii);
159		m_label_free(label);
160		free(ascii);
161	}
162
163	return (0);	/* really exit(0); */
164}
165