ipx_ntoa.c revision 92913
1/* 2 * Copyright (c) 1986, 1993 3 * The Regents of the University of California. 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#include <sys/cdefs.h> 35__FBSDID("$FreeBSD: head/lib/libipx/ipx_ntoa.c 92913 2002-03-21 23:39:28Z obrien $"); 36 37#if defined(LIBC_SCCS) && !defined(lint) 38static char sccsid[] = "@(#)ipx_ntoa.c"; 39#endif /* LIBC_SCCS and not lint */ 40 41#include <sys/param.h> 42#include <arpa/inet.h> 43#include <netipx/ipx.h> 44#include <stdio.h> 45 46char * 47ipx_ntoa(addr) 48 struct ipx_addr addr; 49{ 50 static char obuf[40]; 51 union { union ipx_net net_e; u_long long_e; } net; 52 u_short port = htons(addr.x_port); 53 char *cp; 54 char *cp2; 55 u_char *up = addr.x_host.c_host; 56 u_char *uplim = up + 6; 57 static char *spectHex(); 58 59 net.net_e = addr.x_net; 60 sprintf(obuf, "%lx", (u_long)ntohl(net.long_e)); 61 cp = spectHex(obuf); 62 cp2 = cp + 1; 63 while (*up==0 && up < uplim) up++; 64 if (up == uplim) { 65 if (port) { 66 sprintf(cp, ".0"); 67 cp += 2; 68 } 69 } else { 70 sprintf(cp, ".%x", *up++); 71 while (up < uplim) { 72 while (*cp) cp++; 73 sprintf(cp, "%02x", *up++); 74 } 75 cp = spectHex(cp2); 76 } 77 if (port) { 78 sprintf(cp, ".%x", port); 79 spectHex(cp + 1); 80 } 81 return (obuf); 82} 83 84static char * 85spectHex(p0) 86 char *p0; 87{ 88 int ok = 0; 89 int nonzero = 0; 90 char *p = p0; 91 for (; *p; p++) switch (*p) { 92 93 case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': 94 case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': 95 ok = 1; 96 case '1': case '2': case '3': case '4': case '5': 97 case '6': case '7': case '8': case '9': 98 nonzero = 1; 99 } 100 if (nonzero && !ok) { *p++ = 'H'; *p = 0; } 101 return (p); 102} 103