1 /* 2 * Copyright (c) 1989 Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #if defined(LIBC_SCCS) && !defined(lint) 35 /*static char *sccsid = "from: @(#)iso_addr.c 5.4 (Berkeley) 2/24/91";*/ 36 static char *rcsid = "$Id: iso_addr.c,v 1.3 1993/08/26 00:46:08 jtc Exp $"; 37 #endif /* LIBC_SCCS and not lint */ 38 39 #include <sys/types.h> 40 #include <netiso/iso.h> 41 #include <string.h> 42 43 /* States*/ 44 #define VIRGIN 0 45 #define GOTONE 1 46 #define GOTTWO 2 47 /* Inputs */ 48 #define DIGIT (4*0) 49 #define END (4*1) 50 #define DELIM (4*2) 51 52 struct iso_addr * 53 iso_addr(addr) 54 register const char *addr; 55 { 56 static struct iso_addr out_addr; 57 register char *cp = out_addr.isoa_genaddr; 58 char *cplim = cp + sizeof(out_addr.isoa_genaddr); 59 register int byte = 0, state = VIRGIN, new; 60 61 bzero((char *)&out_addr, sizeof(out_addr)); 62 do { 63 if ((*addr >= '0') && (*addr <= '9')) { 64 new = *addr - '0'; 65 } else if ((*addr >= 'a') && (*addr <= 'f')) { 66 new = *addr - 'a' + 10; 67 } else if ((*addr >= 'A') && (*addr <= 'F')) { 68 new = *addr - 'A' + 10; 69 } else if (*addr == 0) 70 state |= END; 71 else 72 state |= DELIM; 73 addr++; 74 switch (state /* | INPUT */) { 75 case GOTTWO | DIGIT: 76 *cp++ = byte; /*FALLTHROUGH*/ 77 case VIRGIN | DIGIT: 78 state = GOTONE; byte = new; continue; 79 case GOTONE | DIGIT: 80 state = GOTTWO; byte = new + (byte << 4); continue; 81 default: /* | DELIM */ 82 state = VIRGIN; *cp++ = byte; byte = 0; continue; 83 case GOTONE | END: 84 case GOTTWO | END: 85 *cp++ = byte; /* FALLTHROUGH */ 86 case VIRGIN | END: 87 break; 88 } 89 break; 90 } while (cp < cplim); 91 out_addr.isoa_len = cp - out_addr.isoa_genaddr; 92 return (&out_addr); 93 } 94 static char hexlist[] = "0123456789abcdef"; 95 96 char * 97 iso_ntoa(isoa) 98 const struct iso_addr *isoa; 99 { 100 static char obuf[64]; 101 register char *out = obuf; 102 register int i; 103 register u_char *in = (u_char *)isoa->isoa_genaddr; 104 u_char *inlim = in + isoa->isoa_len; 105 106 out[1] = 0; 107 while (in < inlim) { 108 i = *in++; 109 *out++ = '.'; 110 if (i > 0xf) { 111 out[1] = hexlist[i & 0xf]; 112 i >>= 4; 113 out[0] = hexlist[i]; 114 out += 2; 115 } else 116 *out++ = hexlist[i]; 117 } 118 *out = 0; 119 return(obuf + 1); 120 } 121