1*7c478bd9Sstevel@tonic-gate /* 2*7c478bd9Sstevel@tonic-gate * CDDL HEADER START 3*7c478bd9Sstevel@tonic-gate * 4*7c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*7c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*7c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*7c478bd9Sstevel@tonic-gate * with the License. 8*7c478bd9Sstevel@tonic-gate * 9*7c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*7c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*7c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 12*7c478bd9Sstevel@tonic-gate * and limitations under the License. 13*7c478bd9Sstevel@tonic-gate * 14*7c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*7c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*7c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*7c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*7c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*7c478bd9Sstevel@tonic-gate * 20*7c478bd9Sstevel@tonic-gate * CDDL HEADER END 21*7c478bd9Sstevel@tonic-gate */ 22*7c478bd9Sstevel@tonic-gate /* 23*7c478bd9Sstevel@tonic-gate * Copyright 1996-2002 Sun Microsystems, Inc. All rights reserved. 24*7c478bd9Sstevel@tonic-gate * Use is subject to license terms. 25*7c478bd9Sstevel@tonic-gate */ 26*7c478bd9Sstevel@tonic-gate 27*7c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*7c478bd9Sstevel@tonic-gate 29*7c478bd9Sstevel@tonic-gate /* LINTLIBRARY */ 30*7c478bd9Sstevel@tonic-gate 31*7c478bd9Sstevel@tonic-gate #if !defined(_BOOT) && !defined(_KERNEL) 32*7c478bd9Sstevel@tonic-gate #include <stdio.h> 33*7c478bd9Sstevel@tonic-gate #include <ctype.h> 34*7c478bd9Sstevel@tonic-gate #include <stdlib.h> 35*7c478bd9Sstevel@tonic-gate #endif /* _BOOT && _KERNEL */ 36*7c478bd9Sstevel@tonic-gate #include <sys/types.h> 37*7c478bd9Sstevel@tonic-gate #include <sys/errno.h> 38*7c478bd9Sstevel@tonic-gate 39*7c478bd9Sstevel@tonic-gate #if defined(_BOOT) || defined(_KERNEL) 40*7c478bd9Sstevel@tonic-gate #define NULL 0 41*7c478bd9Sstevel@tonic-gate #define isdigit(c) ((c) >= '0' && c <= '9') 42*7c478bd9Sstevel@tonic-gate #define isxdigit(c) (isdigit(c) || (((c) >= 'a') && ((c) <= 'f')) || \ 43*7c478bd9Sstevel@tonic-gate (((c) >= 'A') && ((c) <= 'F'))) 44*7c478bd9Sstevel@tonic-gate #endif /* _BOOT || _KERNEL */ 45*7c478bd9Sstevel@tonic-gate 46*7c478bd9Sstevel@tonic-gate /* 47*7c478bd9Sstevel@tonic-gate * Converts an octet string into an ASCII string. The string returned is 48*7c478bd9Sstevel@tonic-gate * NULL-terminated, and the length recorded in blen does *not* include the 49*7c478bd9Sstevel@tonic-gate * null terminator (in other words, octet_to_hexascii() returns the length a'la 50*7c478bd9Sstevel@tonic-gate * strlen()). 51*7c478bd9Sstevel@tonic-gate * 52*7c478bd9Sstevel@tonic-gate * Returns 0 for Success, errno otherwise. 53*7c478bd9Sstevel@tonic-gate */ 54*7c478bd9Sstevel@tonic-gate int 55*7c478bd9Sstevel@tonic-gate octet_to_hexascii(const void *nump, uint_t nlen, char *bufp, uint_t *blen) 56*7c478bd9Sstevel@tonic-gate { 57*7c478bd9Sstevel@tonic-gate int i; 58*7c478bd9Sstevel@tonic-gate char *bp; 59*7c478bd9Sstevel@tonic-gate const uchar_t *np; 60*7c478bd9Sstevel@tonic-gate static char ascii_conv[] = "0123456789ABCDEF"; 61*7c478bd9Sstevel@tonic-gate 62*7c478bd9Sstevel@tonic-gate if (nump == NULL || bufp == NULL || blen == NULL) 63*7c478bd9Sstevel@tonic-gate return (EINVAL); 64*7c478bd9Sstevel@tonic-gate 65*7c478bd9Sstevel@tonic-gate if ((nlen * 2) >= *blen) { 66*7c478bd9Sstevel@tonic-gate *blen = 0; 67*7c478bd9Sstevel@tonic-gate return (E2BIG); 68*7c478bd9Sstevel@tonic-gate } 69*7c478bd9Sstevel@tonic-gate for (i = 0, bp = bufp, np = (const uchar_t *)nump; i < nlen; i++) { 70*7c478bd9Sstevel@tonic-gate *bp++ = ascii_conv[(np[i] >> 4) & 0x0f]; 71*7c478bd9Sstevel@tonic-gate *bp++ = ascii_conv[np[i] & 0x0f]; 72*7c478bd9Sstevel@tonic-gate } 73*7c478bd9Sstevel@tonic-gate *bp = '\0'; 74*7c478bd9Sstevel@tonic-gate *blen = i * 2; 75*7c478bd9Sstevel@tonic-gate return (0); 76*7c478bd9Sstevel@tonic-gate } 77*7c478bd9Sstevel@tonic-gate 78*7c478bd9Sstevel@tonic-gate /* 79*7c478bd9Sstevel@tonic-gate * Converts an ASCII string into an octet string. 80*7c478bd9Sstevel@tonic-gate * 81*7c478bd9Sstevel@tonic-gate * Returns 0 for success, errno otherwise. 82*7c478bd9Sstevel@tonic-gate */ 83*7c478bd9Sstevel@tonic-gate int 84*7c478bd9Sstevel@tonic-gate hexascii_to_octet(const char *asp, uint_t alen, void *bufp, uint_t *blen) 85*7c478bd9Sstevel@tonic-gate { 86*7c478bd9Sstevel@tonic-gate int i, j, k; 87*7c478bd9Sstevel@tonic-gate const char *tp; 88*7c478bd9Sstevel@tonic-gate uchar_t *u_tp; 89*7c478bd9Sstevel@tonic-gate 90*7c478bd9Sstevel@tonic-gate if (asp == NULL || bufp == NULL || blen == NULL) 91*7c478bd9Sstevel@tonic-gate return (EINVAL); 92*7c478bd9Sstevel@tonic-gate 93*7c478bd9Sstevel@tonic-gate if (alen > (*blen * 2)) 94*7c478bd9Sstevel@tonic-gate return (E2BIG); 95*7c478bd9Sstevel@tonic-gate 96*7c478bd9Sstevel@tonic-gate k = ((alen % 2) == 0) ? alen / 2 : (alen / 2) + 1; 97*7c478bd9Sstevel@tonic-gate for (tp = asp, u_tp = (uchar_t *)bufp, i = 0; i < k; i++, u_tp++) { 98*7c478bd9Sstevel@tonic-gate /* one nibble at a time */ 99*7c478bd9Sstevel@tonic-gate for (*u_tp = 0, j = 0; j < 2; j++, tp++) { 100*7c478bd9Sstevel@tonic-gate if (isdigit(*tp)) 101*7c478bd9Sstevel@tonic-gate *u_tp |= *tp - '0'; 102*7c478bd9Sstevel@tonic-gate else if (isxdigit(*tp)) 103*7c478bd9Sstevel@tonic-gate *u_tp |= (*tp & ~0x20) + 10 - 'A'; 104*7c478bd9Sstevel@tonic-gate else 105*7c478bd9Sstevel@tonic-gate return (EINVAL); 106*7c478bd9Sstevel@tonic-gate if ((j % 2) == 0) 107*7c478bd9Sstevel@tonic-gate *u_tp <<= 4; 108*7c478bd9Sstevel@tonic-gate } 109*7c478bd9Sstevel@tonic-gate } 110*7c478bd9Sstevel@tonic-gate *blen = k; 111*7c478bd9Sstevel@tonic-gate return (0); 112*7c478bd9Sstevel@tonic-gate } 113