/* * Copyright (c) 1998-2003 Carnegie Mellon University. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * 3. The name "Carnegie Mellon University" must not be used to * endorse or promote products derived from this software without * prior written permission. For permission or any other legal * details, please contact * Office of Technology Transfer * Carnegie Mellon University * 5000 Forbes Avenue * Pittsburgh, PA 15213-3890 * (412) 268-4387, fax: (412) 268-7395 * tech-transfer@andrew.cmu.edu * * 4. Redistributions of any form whatsoever must retain the following * acknowledgment: * "This product includes software developed by Computing Services * at Carnegie Mellon University (http://www.cmu.edu/computing/)." * * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ /* $Id: iptostring.c,v 1.8 2006/11/30 17:11:22 murch Exp $ */ #include <config.h> #include <stdlib.h> #include <string.h> #include <stdio.h> #include <netdb.h> #include <sys/socket.h> #include <netinet/in.h> #include <arpa/inet.h> #include <errno.h> #include "iptostring.h" int iptostring(const struct sockaddr *addr, socklen_t addrlen, char *out, unsigned outlen) { char hbuf[NI_MAXHOST], pbuf[NI_MAXSERV]; int niflags; if(!addr || !out) { errno = EINVAL; return -1; } niflags = NI_NUMERICHOST | NI_NUMERICSERV; #ifdef NI_WITHSCOPEID if (addr->sa_family == AF_INET6) niflags |= NI_WITHSCOPEID; #endif if (getnameinfo(addr, addrlen, hbuf, sizeof(hbuf), pbuf, sizeof(pbuf), niflags) != 0) { errno = EINVAL; return -1; } if(outlen < strlen(hbuf) + strlen(pbuf) + 2) { errno = ENOMEM; return -1; } snprintf(out, outlen, "%s;%s", hbuf, pbuf); return 0; }