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 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */ 27 /* All Rights Reserved */ 28 29 /* 30 * Portions of this source code were derived from Berkeley 31 * under license from the Regents of the University of 32 * California. 33 */ 34 35 #pragma ident "%Z%%M% %I% %E% SMI" 36 37 #include <stdio.h> 38 #include <string.h> 39 #include <limits.h> 40 #include <sys/types.h> 41 #include <sys/statvfs.h> 42 #include "ypsym.h" 43 44 #ifdef SYSVCONFIG 45 extern void sysvconfig(); 46 #endif 47 48 extern int yp_getalias(); 49 50 /* 51 * Given a domain name, return its system v alias. 52 * If there is no alias name in the alias file, 53 * create one. Rule of creation is to take the 1st 54 * NAME_MAX-4 characters and concatenate the last 4 characters. 55 * If the alias in the file is too long, trim off the end. 56 */ 57 58 static void 59 mkdomain_alias(name, result) 60 char *name, *result; 61 { 62 int retval; 63 char tmpbuf[MAXNAMLEN] = {NULL}; 64 65 retval = yp_getalias(name, result, NAME_MAX); 66 if (retval == -1) { 67 if ((int)strlen(name) > NAME_MAX) { 68 strncpy(result, name, NAME_MAX-4); 69 strncpy(&result[NAME_MAX-4], 70 &name[strlen(name)-4], 4); 71 result[NAME_MAX] = '\0'; 72 } else 73 strcpy(result, name); 74 } else if ((retval) && (int)strlen(result) > NAME_MAX) { 75 strncpy(tmpbuf, result, NAME_MAX); 76 strcpy(result, tmpbuf); 77 } 78 } 79 80 /* 81 * Given a map name, return its system v alias . 82 * If there is no alias name in the alias file, 83 * create one. Rule of creation is to take the 1st 84 * MAXALIASLEN-4 characters and concatenate the last 4 characters. 85 * If the alias in the file is too long, trim off the end. 86 */ 87 static void 88 mkmap_alias(name, result) 89 char *name, *result; 90 { 91 int retval; 92 char tmpbuf[MAXNAMLEN] = {NULL}; 93 94 retval = yp_getalias(name, result, MAXALIASLEN); 95 96 if (retval == -1) { 97 if ((int)strlen(name) > MAXALIASLEN) { 98 (void) strncpy(result, name, MAXALIASLEN-4); 99 (void) strncpy(&result[MAXALIASLEN-4], 100 &name[strlen(name)-4], 4); 101 result[MAXALIASLEN] = '\0'; 102 } else 103 (void) strcpy(result, name); 104 } else if ((retval) && (int)strlen(result) > MAXALIASLEN) { 105 (void) strncpy(tmpbuf, result, MAXALIASLEN); 106 (void) strcpy(result, tmpbuf); 107 } 108 } 109 110 #ifdef MAIN 111 112 /* 113 * executed only for the command ypalias 114 * and not when ypbind or ypserv make use 115 * of this file. 116 */ 117 118 static char usage[] = 119 "Usage:\n\ 120 ypalias -d domainname\n\ 121 ypalias mapname\n"; 122 123 int 124 main(argc, argv) 125 char **argv; 126 { 127 char result[MAXNAMLEN] = {NULL}; 128 129 #ifdef SYSVCONFIG 130 sysvconfig(); 131 #endif 132 if (argc <= 1) 133 goto err; 134 if (strcmp(argv[1], "-d") == 0) 135 if (argc == 3) mkdomain_alias(argv[2], (char *)&result); 136 else goto err; 137 else if (argc == 2) 138 mkmap_alias(argv[1], (char *)&result); 139 else 140 goto err; 141 (void) printf("%s", result); 142 return (0); 143 err: 144 (void) fprintf(stderr, usage); 145 return (1); 146 } 147 #endif /* MAIN */ 148