1 /* 2 * Copyright (c) 1983, 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. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #include <sys/cdefs.h> 31 #if defined(LIBC_SCCS) && !defined(lint) 32 static char sccsid[] = "@(#)inet_ntoa.c 8.1 (Berkeley) 6/4/93"; 33 #endif /* LIBC_SCCS and not lint */ 34 35 #include <sys/types.h> 36 #include <sys/socket.h> 37 #include <netinet/in.h> 38 #include <arpa/inet.h> 39 #include "stand.h" 40 41 /* 42 * Convert network-format internet address 43 * to base 256 d.d.d.d representation. 44 */ 45 char * 46 inet_ntoa(struct in_addr in) 47 { 48 static const char fmt[] = "%u.%u.%u.%u"; 49 static char ret[sizeof "255.255.255.255"]; 50 unsigned char *src = (unsigned char *) ∈ 51 52 sprintf(ret, fmt, src[0], src[1], src[2], src[3]); 53 return (ret); 54 } 55 56 /* 57 * Weak aliases for applications that use certain private entry points, 58 * and fail to include <arpa/inet.h>. 59 */ 60 #undef inet_ntoa 61 __weak_reference(__inet_ntoa, inet_ntoa); 62