1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 2009, Sun Microsystems, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions are met: 9 * - Redistributions of source code must retain the above copyright notice, 10 * this list of conditions and the following disclaimer. 11 * - Redistributions in binary form must reproduce the above copyright notice, 12 * this list of conditions and the following disclaimer in the documentation 13 * and/or other materials provided with the distribution. 14 * - Neither the name of Sun Microsystems, Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived 16 * from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28 * POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #if defined(LIBC_SCCS) && !defined(lint) 32 static char sccsid[] = "@(#)rpcdname.c 1.7 91/03/11 Copyr 1989 Sun Micro"; 33 #endif 34 #include <sys/cdefs.h> 35 __FBSDID("$FreeBSD$"); 36 37 /* 38 * rpcdname.c 39 * Gets the default domain name 40 */ 41 42 #include "namespace.h" 43 #include <stdlib.h> 44 #include <unistd.h> 45 #include <string.h> 46 #include "un-namespace.h" 47 48 static char *default_domain; 49 50 static char * 51 get_default_domain(void) 52 { 53 char temp[256]; 54 55 if (default_domain != NULL) 56 return (default_domain); 57 if (getdomainname(temp, sizeof(temp)) < 0) 58 return (0); 59 if ((int) strlen(temp) > 0) { 60 default_domain = malloc((strlen(temp) + (unsigned)1)); 61 if (default_domain == NULL) 62 return (0); 63 (void) strcpy(default_domain, temp); 64 return (default_domain); 65 } 66 return (0); 67 } 68 69 /* 70 * This is a wrapper for the system call getdomainname which returns a 71 * ypclnt.h error code in the failure case. It also checks to see that 72 * the domain name is non-null, knowing that the null string is going to 73 * get rejected elsewhere in the NIS client package. 74 */ 75 int 76 __rpc_get_default_domain(char **domain) 77 { 78 if ((*domain = get_default_domain()) != NULL) 79 return (0); 80 return (-1); 81 } 82