1 /* 2 * Copyright (c) 2000, Boris Popov 3 * 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 Boris Popov. 16 * 4. Neither the name of the author nor the names of any co-contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * $Id: nb_net.c,v 1.8 2004/03/19 01:49:47 lindak Exp $ 33 */ 34 35 #include <sys/param.h> 36 #include <sys/socket.h> 37 #include <sys/ioctl.h> 38 #include <sys/sockio.h> 39 #include <net/if.h> 40 #include <ctype.h> 41 #include <errno.h> 42 #include <stdlib.h> 43 #include <string.h> 44 #include <strings.h> 45 #include <stdio.h> 46 #include <unistd.h> 47 #include <netdb.h> 48 #include <nss_dbdefs.h> 49 50 #include <err.h> 51 52 #include <netsmb/netbios.h> 53 #include <netsmb/smb_lib.h> 54 #include <netsmb/nb_lib.h> 55 #include "private.h" 56 57 /* 58 * General networking stuff, in spite of the names 59 * that imply they're specific to NetBIOS. 60 */ 61 62 int 63 nb_resolvehost_in(const char *name, struct in_addr *ia) 64 { 65 char he_buf[NSS_BUFLEN_HOSTS]; 66 struct hostent he, *h; 67 int err; 68 69 h = gethostbyname_r(name, &he, he_buf, sizeof (he_buf), &err); 70 if (h == NULL) { 71 #ifdef DEBUG 72 warnx("can't get server address `%s': ", name); 73 #endif 74 return (ENETDOWN); 75 } 76 if (h->h_addrtype != AF_INET) { 77 #ifdef DEBUG 78 warnx("address for `%s' is not in the AF_INET family", name); 79 #endif 80 return (EAFNOSUPPORT); 81 } 82 if (h->h_length != 4) { 83 #ifdef DEBUG 84 warnx("address for `%s' has invalid length", name); 85 #endif 86 return (EAFNOSUPPORT); 87 } 88 89 memcpy(ia, h->h_addr, sizeof (*ia)); 90 return (0); 91 } 92