1/* $OpenBSD: inet_ntop.c,v 1.7 2005/08/06 20:30:03 espie Exp $ */ |
2 |
3/* Copyright (c) 1996 by Internet Software Consortium. 4 * 5 * Permission to use, copy, modify, and distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS 10 * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES 11 * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE 12 * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL 13 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR 14 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS 15 * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS 16 * SOFTWARE. 17 */ 18 |
19/* OPENBSD ORIGINAL: lib/libc/net/inet_ntop.c */ 20 |
21#include "includes.h" 22 23#ifndef HAVE_INET_NTOP 24 |
25#include <sys/param.h> 26#include <sys/types.h> 27#include <sys/socket.h> 28#include <netinet/in.h> 29#include <arpa/inet.h> 30#include <arpa/nameser.h> 31#include <string.h> 32#include <errno.h> --- 19 unchanged lines hidden (view full) --- 52 * inet_ntop(af, src, dst, size) 53 * convert a network format address to presentation format. 54 * return: 55 * pointer to presentation format address (`dst'), or NULL (see errno). 56 * author: 57 * Paul Vixie, 1996. 58 */ 59const char * |
60inet_ntop(int af, const void *src, char *dst, size_t size) |
61{ 62 switch (af) { 63 case AF_INET: 64 return (inet_ntop4(src, dst, size)); 65 case AF_INET6: 66 return (inet_ntop6(src, dst, size)); 67 default: 68 errno = EAFNOSUPPORT; --- 9 unchanged lines hidden (view full) --- 78 * `dst' (as a const) 79 * notes: 80 * (1) uses no statics 81 * (2) takes a u_char* not an in_addr as input 82 * author: 83 * Paul Vixie, 1996. 84 */ 85static const char * |
86inet_ntop4(const u_char *src, char *dst, size_t size) |
87{ 88 static const char fmt[] = "%u.%u.%u.%u"; 89 char tmp[sizeof "255.255.255.255"]; 90 int l; 91 92 l = snprintf(tmp, size, fmt, src[0], src[1], src[2], src[3]); 93 if (l <= 0 || l >= size) { 94 errno = ENOSPC; --- 5 unchanged lines hidden (view full) --- 100 101/* const char * 102 * inet_ntop6(src, dst, size) 103 * convert IPv6 binary address into presentation (printable) format 104 * author: 105 * Paul Vixie, 1996. 106 */ 107static const char * |
108inet_ntop6(const u_char *src, char *dst, size_t size) |
109{ 110 /* 111 * Note that int32_t and int16_t need only be "at least" large enough 112 * to contain a value of the specified size. On some systems, like 113 * Crays, there is no such thing as an integer variable with 16 bits. 114 * Keep this in mind if you think this function should have been coded 115 * to use pointer overlays. All the world's not a VAX. 116 */ --- 95 unchanged lines hidden --- |