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  *	atohexlabel - Convert a human readable label to its internal
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 
50 static void
label_error(const char * ascii,const int err)51 label_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 
76 int
main(int argc,char ** argv)77 main(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 
126 		/*
127 		 * replace '\n' or (end of buffer) with end of string.
128 		 */
129 		ascii[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(ascii, &label, USER_CLEAR, L_NO_CORRECTION,
139 		    &err) == -1) {
140 			label_error(ascii, err);
141 		}
142 		if (label_to_str(label, &hex, M_INTERNAL, DEF_NAMES) != 0) {
143 			perror("label_to_str");
144 			exit(1);
145 		}
146 		(void) printf("%s\n", hex);
147 		m_label_free(label);
148 		free(hex);
149 	} else {
150 		if (str_to_label(ascii, &label, MAC_LABEL, L_NO_CORRECTION,
151 		    &err) == -1) {
152 			label_error(ascii, err);
153 		}
154 		if (label_to_str(label, &hex, M_INTERNAL, DEF_NAMES) != 0) {
155 			perror("label_to_str");
156 			exit(1);
157 		}
158 		(void) printf("%s\n", hex);
159 		m_label_free(label);
160 		free(hex);
161 	}
162 
163 	return (0);		/* really exit(0); */
164 }
165