1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 23 /* 24 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 25 * Use is subject to license terms. 26 */ 27 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */ 28 /* All Rights Reserved */ 29 /* 30 * Portions of this source code were derived from Berkeley 31 * 4.3 BSD under license from the Regents of the University of 32 * California. 33 */ 34 35 #pragma ident "%Z%%M% %I% %E% SMI" 36 37 /* 38 * getdname.c 39 * Gets and sets the domain name of the system 40 */ 41 42 #include "rpc_mt.h" 43 #include <stdio.h> 44 #include <stdlib.h> 45 #include <sys/types.h> 46 #include <sys/utsname.h> 47 #include <sys/systeminfo.h> 48 #include <sys/time.h> 49 #include <syslog.h> 50 51 #ifndef SI_SRPC_DOMAIN 52 #define use_file 53 #endif 54 55 #ifdef use_file 56 char DOMAIN[] = "/etc/domain"; 57 #endif 58 59 int setdomainname(); 60 61 #ifdef use_file 62 static char *domainname; 63 #endif 64 65 extern mutex_t dname_lock; 66 67 int 68 getdomainname(name, namelen) 69 char *name; 70 int namelen; 71 { 72 #ifdef use_file 73 FILE *domain_fd; 74 char *line; 75 76 (void) mutex_lock(&dname_lock); 77 if (domainname) { 78 (void) strncpy(name, domainname, namelen); 79 (void) mutex_unlock(&dname_lock); 80 return (0); 81 } 82 83 domainname = calloc(1, 256); 84 if (domainname == NULL) { 85 syslog(LOG_ERR, "getdomainname : out of memory."); 86 (void) mutex_unlock(&dname_lock); 87 return (-1); 88 } 89 90 if ((domain_fd = fopen(DOMAIN, "r")) == NULL) { 91 92 (void) mutex_unlock(&dname_lock); 93 return (-1); 94 } 95 if (fscanf(domain_fd, "%s", domainname) == NULL) { 96 (void) fclose(domain_fd); 97 (void) mutex_unlock(&dname_lock); 98 return (-1); 99 } 100 (void) fclose(domain_fd); 101 (void) strncpy(name, domainname, namelen); 102 (void) mutex_unlock(&dname_lock); 103 return (0); 104 #else 105 int sysinfostatus; 106 107 sysinfostatus = sysinfo(SI_SRPC_DOMAIN, name, namelen); 108 109 return ((sysinfostatus < 0) ? -1 : 0); 110 #endif 111 } 112 113 int 114 setdomainname(domain, len) 115 char *domain; 116 int len; 117 { 118 #ifdef use_file 119 120 FILE *domain_fd; 121 122 (void) mutex_lock(&dname_lock); 123 if (domainname) 124 free(domainname); 125 126 if ((domain_fd = fopen(DOMAIN, "w")) == NULL) { 127 (void) mutex_unlock(&dname_lock); 128 return (-1); 129 } 130 if (fputs(domain, domain_fd) == NULL) { 131 (void) mutex_unlock(&dname_lock); 132 return (-1); 133 } 134 (void) fclose(domain_fd); 135 domainname = calloc(1, 256); 136 if (domainname == NULL) { 137 syslog(LOG_ERR, "setdomainname : out of memory."); 138 (void) mutex_unlock(&dname_lock); 139 return (-1); 140 } 141 (void) strncpy(domainname, domain, len); 142 (void) mutex_unlock(&dname_lock); 143 return (0); 144 #else 145 int sysinfostatus; 146 147 sysinfostatus = sysinfo(SI_SET_SRPC_DOMAIN, 148 domain, len + 1); /* add null */ 149 return ((sysinfostatus < 0) ? -1 : 0); 150 #endif 151 } 152