1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * CDDL HEADER START
3*0Sstevel@tonic-gate *
4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*0Sstevel@tonic-gate * with the License.
8*0Sstevel@tonic-gate *
9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate * and limitations under the License.
13*0Sstevel@tonic-gate *
14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate *
20*0Sstevel@tonic-gate * CDDL HEADER END
21*0Sstevel@tonic-gate */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate * Copyright 1996-2002 Sun Microsystems, Inc. All rights reserved.
24*0Sstevel@tonic-gate * Use is subject to license terms.
25*0Sstevel@tonic-gate */
26*0Sstevel@tonic-gate
27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
28*0Sstevel@tonic-gate
29*0Sstevel@tonic-gate /* LINTLIBRARY */
30*0Sstevel@tonic-gate
31*0Sstevel@tonic-gate #if !defined(_BOOT) && !defined(_KERNEL)
32*0Sstevel@tonic-gate #include <stdio.h>
33*0Sstevel@tonic-gate #include <ctype.h>
34*0Sstevel@tonic-gate #include <stdlib.h>
35*0Sstevel@tonic-gate #endif /* _BOOT && _KERNEL */
36*0Sstevel@tonic-gate #include <sys/types.h>
37*0Sstevel@tonic-gate #include <sys/errno.h>
38*0Sstevel@tonic-gate
39*0Sstevel@tonic-gate #if defined(_BOOT) || defined(_KERNEL)
40*0Sstevel@tonic-gate #define NULL 0
41*0Sstevel@tonic-gate #define isdigit(c) ((c) >= '0' && c <= '9')
42*0Sstevel@tonic-gate #define isxdigit(c) (isdigit(c) || (((c) >= 'a') && ((c) <= 'f')) || \
43*0Sstevel@tonic-gate (((c) >= 'A') && ((c) <= 'F')))
44*0Sstevel@tonic-gate #endif /* _BOOT || _KERNEL */
45*0Sstevel@tonic-gate
46*0Sstevel@tonic-gate /*
47*0Sstevel@tonic-gate * Converts an octet string into an ASCII string. The string returned is
48*0Sstevel@tonic-gate * NULL-terminated, and the length recorded in blen does *not* include the
49*0Sstevel@tonic-gate * null terminator (in other words, octet_to_hexascii() returns the length a'la
50*0Sstevel@tonic-gate * strlen()).
51*0Sstevel@tonic-gate *
52*0Sstevel@tonic-gate * Returns 0 for Success, errno otherwise.
53*0Sstevel@tonic-gate */
54*0Sstevel@tonic-gate int
octet_to_hexascii(const void * nump,uint_t nlen,char * bufp,uint_t * blen)55*0Sstevel@tonic-gate octet_to_hexascii(const void *nump, uint_t nlen, char *bufp, uint_t *blen)
56*0Sstevel@tonic-gate {
57*0Sstevel@tonic-gate int i;
58*0Sstevel@tonic-gate char *bp;
59*0Sstevel@tonic-gate const uchar_t *np;
60*0Sstevel@tonic-gate static char ascii_conv[] = "0123456789ABCDEF";
61*0Sstevel@tonic-gate
62*0Sstevel@tonic-gate if (nump == NULL || bufp == NULL || blen == NULL)
63*0Sstevel@tonic-gate return (EINVAL);
64*0Sstevel@tonic-gate
65*0Sstevel@tonic-gate if ((nlen * 2) >= *blen) {
66*0Sstevel@tonic-gate *blen = 0;
67*0Sstevel@tonic-gate return (E2BIG);
68*0Sstevel@tonic-gate }
69*0Sstevel@tonic-gate for (i = 0, bp = bufp, np = (const uchar_t *)nump; i < nlen; i++) {
70*0Sstevel@tonic-gate *bp++ = ascii_conv[(np[i] >> 4) & 0x0f];
71*0Sstevel@tonic-gate *bp++ = ascii_conv[np[i] & 0x0f];
72*0Sstevel@tonic-gate }
73*0Sstevel@tonic-gate *bp = '\0';
74*0Sstevel@tonic-gate *blen = i * 2;
75*0Sstevel@tonic-gate return (0);
76*0Sstevel@tonic-gate }
77*0Sstevel@tonic-gate
78*0Sstevel@tonic-gate /*
79*0Sstevel@tonic-gate * Converts an ASCII string into an octet string.
80*0Sstevel@tonic-gate *
81*0Sstevel@tonic-gate * Returns 0 for success, errno otherwise.
82*0Sstevel@tonic-gate */
83*0Sstevel@tonic-gate int
hexascii_to_octet(const char * asp,uint_t alen,void * bufp,uint_t * blen)84*0Sstevel@tonic-gate hexascii_to_octet(const char *asp, uint_t alen, void *bufp, uint_t *blen)
85*0Sstevel@tonic-gate {
86*0Sstevel@tonic-gate int i, j, k;
87*0Sstevel@tonic-gate const char *tp;
88*0Sstevel@tonic-gate uchar_t *u_tp;
89*0Sstevel@tonic-gate
90*0Sstevel@tonic-gate if (asp == NULL || bufp == NULL || blen == NULL)
91*0Sstevel@tonic-gate return (EINVAL);
92*0Sstevel@tonic-gate
93*0Sstevel@tonic-gate if (alen > (*blen * 2))
94*0Sstevel@tonic-gate return (E2BIG);
95*0Sstevel@tonic-gate
96*0Sstevel@tonic-gate k = ((alen % 2) == 0) ? alen / 2 : (alen / 2) + 1;
97*0Sstevel@tonic-gate for (tp = asp, u_tp = (uchar_t *)bufp, i = 0; i < k; i++, u_tp++) {
98*0Sstevel@tonic-gate /* one nibble at a time */
99*0Sstevel@tonic-gate for (*u_tp = 0, j = 0; j < 2; j++, tp++) {
100*0Sstevel@tonic-gate if (isdigit(*tp))
101*0Sstevel@tonic-gate *u_tp |= *tp - '0';
102*0Sstevel@tonic-gate else if (isxdigit(*tp))
103*0Sstevel@tonic-gate *u_tp |= (*tp & ~0x20) + 10 - 'A';
104*0Sstevel@tonic-gate else
105*0Sstevel@tonic-gate return (EINVAL);
106*0Sstevel@tonic-gate if ((j % 2) == 0)
107*0Sstevel@tonic-gate *u_tp <<= 4;
108*0Sstevel@tonic-gate }
109*0Sstevel@tonic-gate }
110*0Sstevel@tonic-gate *blen = k;
111*0Sstevel@tonic-gate return (0);
112*0Sstevel@tonic-gate }
113