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 /* 35 * rpcdname.c 36 * Gets the default domain name 37 */ 38 39 #include "namespace.h" 40 #include <stdlib.h> 41 #include <unistd.h> 42 #include <string.h> 43 #include "un-namespace.h" 44 45 static char *default_domain; 46 47 static char * 48 get_default_domain(void) 49 { 50 char temp[256]; 51 52 if (default_domain != NULL) 53 return (default_domain); 54 if (getdomainname(temp, sizeof(temp)) < 0) 55 return (0); 56 if ((int) strlen(temp) > 0) { 57 default_domain = malloc((strlen(temp) + (unsigned)1)); 58 if (default_domain == NULL) 59 return (0); 60 (void) strcpy(default_domain, temp); 61 return (default_domain); 62 } 63 return (0); 64 } 65 66 /* 67 * This is a wrapper for the system call getdomainname which returns a 68 * ypclnt.h error code in the failure case. It also checks to see that 69 * the domain name is non-null, knowing that the null string is going to 70 * get rejected elsewhere in the NIS client package. 71 */ 72 int 73 __rpc_get_default_domain(char **domain) 74 { 75 if ((*domain = get_default_domain()) != NULL) 76 return (0); 77 return (-1); 78 } 79