atohexlabel.c revision 4746:0bc0c48f4304 
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#pragma ident	"%Z%%M%	%I%	%E% SMI"
28
29/*
30 *	atohexlabel - Convert a human readable label to its internal
31 *			equivalent.
32 */
33
34#include <errno.h>
35#include <libintl.h>
36#include <locale.h>
37#include <stdio.h>
38#include <stdlib.h>
39#include <string.h>
40#include <unistd.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 *ascii, const int err)
52{
53	if (errno == EINVAL) {
54		switch (err) {
55		case M_BAD_STRING:
56			(void) fprintf(stderr,
57			    gettext("atohexlabel: bad string %s\n"), ascii);
58		break;
59		case M_BAD_LABEL:
60			(void) fprintf(stderr,
61			    gettext("atohexlabel: bad previous label\n"));
62		break;
63		default:
64			(void) fprintf(stderr,
65			    gettext("atohexlabel: parsing error found in "
66			    "\"%s\" at position %d\n"), ascii, err);
67		break;
68		}
69	} else {
70		perror("atohexlabel");
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;	/* binary labels */
82	char ascii[PIPE_BUF];		/* human readable label */
83	char *hex = NULL;		/* internal 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
98		default:
99			errflg++;
100			break;
101		}
102	}
103
104	argc -= optind - 1;
105	if (errflg || argc > 2) {
106
107		(void) fprintf(stderr,
108		    gettext("usage: %s [-c] [human readable label]\n"),
109		    argv[0]);
110		exit(1);
111		/*NOTREACHED*/
112	}
113
114	if (argc == 2) {
115		/* use label on command line */
116
117		(void) strlcpy(ascii, argv[optind], sizeof (ascii));
118	} else {
119		/* read label from standard input */
120		if ((c = read(STDIN_FILENO, ascii, sizeof (ascii))) < 0) {
121			perror(gettext("reading ASCII coded label"));
122			exit(1);
123			/*NOTREACHED*/
124		}
125		if (ascii[c-1] == '\n') {
126			/* replace '\n' with end of string */
127			ascii[c-1] = '\0';
128		} else {
129			/* ensure end of string */
130			ascii[c] = '\0';
131		}
132	}
133
134	if (cflg) {
135		if (str_to_label(ascii, &label, USER_CLEAR, L_NO_CORRECTION,
136		    &err) == -1) {
137			label_error(ascii, err);
138		}
139		if (label_to_str(label, &hex, M_INTERNAL, DEF_NAMES) != 0) {
140			perror("label_to_str");
141			exit(1);
142		}
143		(void) printf("%s\n", hex);
144		m_label_free(label);
145		free(hex);
146	} else {
147		if (str_to_label(ascii, &label, MAC_LABEL, L_NO_CORRECTION,
148		    &err) == -1) {
149			label_error(ascii, err);
150		}
151		if (label_to_str(label, &hex, M_INTERNAL, DEF_NAMES) != 0) {
152			perror("label_to_str");
153			exit(1);
154		}
155		(void) printf("%s\n", hex);
156		m_label_free(label);
157		free(hex);
158	}
159
160	return (0);		/* really exit(0); */
161}
162