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