2 * Copyright (c) 1986, 1993
3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley by
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 #if defined(LIBC_SCCS) && !defined(lint)
38 static char sccsid[] = "@(#)ns_addr.c 8.1 (Berkeley) 6/7/93";
39 #endif /* LIBC_SCCS and not lint */
40 #include <sys/cdefs.h>
41 __FBSDID("$FreeBSD$");
43 #include <sys/param.h>
44 #include <arpa/inet.h>
49 static struct ns_addr addr, zero_addr;
51 static void Field(), cvtbase();
58 char *hostname, *socketname, *cp;
61 (void)strncpy(buf, name, sizeof(buf) - 1);
62 buf[sizeof(buf) - 1] = '\0';
65 * First, figure out what he intends as a field separtor.
66 * Despite the way this routine is written, the preferred
67 * form 2-272.AA001234H.01777, i.e. XDE standard.
68 * Great efforts are made to insure backward compatibility.
70 if ((hostname = strchr(buf, '#')) != NULL)
73 hostname = strchr(buf, '.');
74 if ((cp = strchr(buf, ':')) &&
75 ((hostname && cp < hostname) || (hostname == 0))) {
85 Field(buf, addr.x_net.c_net, 4);
87 return (addr); /* No separator means net only */
89 socketname = strchr(hostname, separator);
92 Field(socketname, (u_char *)&addr.x_port, 2);
95 Field(hostname, addr.x_host.c_host, 6);
107 int i, ibase, base16 = 0, base10 = 0, clen = 0;
111 * first try 2-273#2-852-151-014#socket
114 (1 < (i = sscanf(buf, "%d-%d-%d-%d-%d",
115 &hb[0], &hb[1], &hb[2], &hb[3], &hb[4])))) {
116 cvtbase(1000L, 256, hb, i, out, len);
120 * try form 8E1#0.0.AA.0.5E.E6#socket
122 if (1 < (i = sscanf(buf,"%x.%x.%x.%x.%x.%x",
123 &hb[0], &hb[1], &hb[2], &hb[3], &hb[4], &hb[5]))) {
124 cvtbase(256L, 256, hb, i, out, len);
128 * try form 8E1#0:0:AA:0:5E:E6#socket
130 if (1 < (i = sscanf(buf,"%x:%x:%x:%x:%x:%x",
131 &hb[0], &hb[1], &hb[2], &hb[3], &hb[4], &hb[5]))) {
132 cvtbase(256L, 256, hb, i, out, len);
136 * This is REALLY stretching it but there was a
137 * comma notation separting shorts -- definitely non standard
139 if (1 < (i = sscanf(buf,"%x,%x,%x",
140 &hb[0], &hb[1], &hb[2]))) {
141 hb[0] = htons(hb[0]); hb[1] = htons(hb[1]);
142 hb[2] = htons(hb[2]);
143 cvtbase(65536L, 256, hb, i, out, len);
147 /* Need to decide if base 10, 16 or 8 */
148 while (*bp) switch (*bp++) {
150 case '0': case '1': case '2': case '3': case '4': case '5':
151 case '6': case '7': case '-':
158 case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
159 case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
173 *--bp = 0; /* Ends Loop */
177 } else if (base10 == 0 && *buf == '0') {
184 for (bp = buf; *bp++; ) clen++;
185 if (clen == 0) clen++;
186 if (clen > 18) clen = 18;
187 i = ((clen - 1) / 3) + 1;
193 (void)sscanf(bp, "%3x", hp);
195 (void)sscanf(bp, "%3d", hp);
197 (void)sscanf(bp, "%3o", hp);
204 (void)sscanf(buf, "%3x", hp);
206 (void)sscanf(buf, "%3d", hp);
208 (void)sscanf(buf, "%3o", hp);
210 cvtbase((long)ibase, 256, hb, i, out, len);
214 cvtbase(oldbase,newbase,input,inlen,result,reslen)
219 unsigned char result[];
226 while (e > 0 && reslen > 0) {
227 d = 0; e = 0; sum = 0;
228 /* long division: input=input/newbase */
230 sum = sum*oldbase + (long) input[d];
232 input[d++] = sum / newbase;
235 result[--reslen] = sum; /* accumulate remainder */
237 for (d=0; d < reslen; d++)