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 /* 32 * rpcdname.c 33 * Gets the default domain name 34 */ 35 36 #include "namespace.h" 37 #include <stdlib.h> 38 #include <unistd.h> 39 #include <string.h> 40 #include "un-namespace.h" 41 42 static char *default_domain; 43 44 static char * 45 get_default_domain(void) 46 { 47 char temp[256]; 48 49 if (default_domain != NULL) 50 return (default_domain); 51 if (getdomainname(temp, sizeof(temp)) < 0) 52 return (0); 53 if ((int) strlen(temp) > 0) { 54 default_domain = malloc((strlen(temp) + (unsigned)1)); 55 if (default_domain == NULL) 56 return (0); 57 (void) strcpy(default_domain, temp); 58 return (default_domain); 59 } 60 return (0); 61 } 62 63 /* 64 * This is a wrapper for the system call getdomainname which returns a 65 * ypclnt.h error code in the failure case. It also checks to see that 66 * the domain name is non-null, knowing that the null string is going to 67 * get rejected elsewhere in the NIS client package. 68 */ 69 int 70 __rpc_get_default_domain(char **domain) 71 { 72 if ((*domain = get_default_domain()) != NULL) 73 return (0); 74 return (-1); 75 } 76